TWM626367U - Leaf-cutting machine - Google Patents

Abstract

A leaf cutter comprises a main frame body and a cutter device pivoted on the main frame body, the leaf cutter further comprises a travel device for propelling the leaf cutter to travel, and a driving device for driving the tool A driving device for the operation of the device and the traveling device, the tool device includes two blade holders that can move along the axial direction of a rotating shaft to adjust the distance between them, and a plurality of blades are pivoted on each blade holder, so The leaf cutter further includes a brake for generating sufficient braking friction on the cutter device, the cutter holder allowing adjustment to an appropriate spacing for the planting width of the crop, the brake for quickly braking the Tool device.

Description

Leaf Cutter

This creation is about a leaf cutter, especially a device suitable for quickly cutting the protruding branches and leaves of crops to open up passages for people to pass through.

The population of the modern world has exploded, so the demand for food and land has also increased. In order to meet the demand for food and economic considerations, if the crops planted in agricultural land can be properly shortened, more crops can be planted in the same area of agricultural land. many crops. However, since the planting interval of the crops is reduced, when the crops grow to a certain extent, the branches and leaves of the crops may extend into the passages where workers pass. Take pineapple as an example, because the leaves of pineapple are open and harder than ordinary leaves, when the pineapple in the pineapple field grows to a certain extent, the pineapple leaves are easily covered with the passage originally reserved for people to pass, making it difficult for people to pass through. Problems need to be solved.

In order to solve this problem, the present invention provides a leaf cutter including a main frame body and a cutter device, which are rotatably combined with the main frame body, the cutter device includes a rotating shaft, and the rotating shaft includes two at both ends. A shaft connection segment, the cutter device further comprises two blade holders movably combined with the two shaft connection segments and a blade provided on the two blade holders, the two blade holders and the The rotating shafts rotate together, and in the state where the rotating shafts do not rotate, the two blade holders can be The distance between the two blade holders along the axial direction of the rotating shaft is adjusted within the range of the two shaft connection sections along the axial direction, and a driving device is fixed on the main frame body, The operation of the drive means causes the shaft to rotate.

Each blade holder of the cutter device of this creation allows to adjust the appropriate distance for the interval of crop planting, so when cutting the protruding branches and leaves of the crop, the crop itself will not be hurt, and the crop will not be cut due to the wide space. The problem of crop protruding foliage.

The leaf cutter further includes a protective cover group, and the protective cover group includes: two fixing parts, respectively fixed on both sides of the main frame body and located on the axial direction of the rotating shaft. Between two blade holders, each fixing member includes an axial shield extending along the axial direction of the rotating shaft, and the respective blades of the two blade holders are located on the inner periphery of the axial shield and are connected with the axial shield. The axial shield is spaced apart, the two shaft connecting sections of the rotating shaft are located outside the two fixed parts along the axial direction of the rotating shaft, and the two movable parts are movable along the axial direction of the rotating shaft. Combined with the two axial shields, the two blade holders and the blades are located between the two axial shields and/or the movable parts along the axial direction of the rotating shaft.

The movable parts of the protection cover group can be adjusted according to the spacing distances set by the blade holders to keep the blade holders and the blades from protruding outside the protection cover group, which can effectively improve safety.

The leaf cutter, wherein each axial shield includes a plurality of bolts formed on the outer surface, each movable member includes a plurality of movable grooves extending along the axial direction of the rotating shaft, and each bolt accommodates a plurality of movable grooves. is placed in each movable slot, so that the range of the axial movement of each movable member along the rotating shaft is limited by the length of each movable slot.

The leaf cutter, wherein the two shaft connecting sections of the rotating shaft include non-circular radial sections, and each blade holder includes a shaft connecting portion for movably combining with the shaft connecting sections , each shaft connection portion includes a radial section corresponding to each shaft connection segment, and each shaft connection portion is connected with a pressing member In combination, when the pressing members are loosened, the blade holders can move along the axial direction of the rotating shaft within the range of the corresponding shaft connection section, and when the pressing members are locked, the The blade holder is not movable along the axial direction of the shaft.

The leaf cutter further includes: a blade belt, wherein the driving device includes a driving wheel, the cutter device further includes a composite wheel combined with the rotating shaft to rotate together, and the composite wheel includes a first wheel. A slot, the blade belt is wound between the driving pulley and the first slot of the compound wheel, a blade belt tensioner, combined with the main frame body, the blade belt tensioner includes a controlled movable A blade belt tension wheel, when the blade belt tension wheel is tightening the blade belt, the rotating shaft rotates, and when the blade belt tension wheel is not tightening the blade belt, the rotating shaft does not rotate.

In the leaf cutter, the cutter device further includes: a brake, which is arranged on the main frame body, the brake includes a friction piece, and the brake includes an end piece that can be moved under control, The end piece is configured to move the friction piece with or without braking the compound wheel, and to enable the respective blade holders when the blade belt is not taut and the friction piece brakes the compound wheel And each blade stops rotating.

When the cutter device is to be stopped after running, the brake can exert sufficient frictional resistance for braking, so that each blade quickly stops rotating, which is more convenient in operation.

In the leaf cutter, the brake further comprises a brake arm pivotally connected with the main frame body, the end piece is non-rotatably combined with the brake arm, and the composite wheel further comprises a brake arm connected to the first frame. A second slot spaced apart but concentric, the friction member is formed by a belt wound between the end member and the second slot of the composite wheel, the brake arm is controlled to pivot The rotation causes the displacement of the end piece so that the friction piece is tightened or not, and when the friction piece is tightened, the composite wheel is produced. A friction resistance sufficient for braking is generated, and when the friction member is not tightened, the friction member does not generate friction resistance sufficient for braking to the composite wheel.

The leaf cutter further includes: a traveling device fixed on the main frame body, the traveling device includes a traveling transmission wheel and a rear wheel, and the rotation of the traveling transmission wheel is linked to the rotation of the rear wheel. , a travel belt, the driving wheel further comprises a travel drive groove and a blade drive groove spaced apart from the travel drive groove but coaxial, the blade belt is wound around the first groove of the composite wheel and Between the blade transmission grooves of the driving wheel, the driving belt is wound between the driving transmission groove of the driving wheel and the driving transmission wheel, and a driving belt tensioner is combined with the main frame body. The belt tensioner includes a traveling belt tensioning pulley that is controlled and movable. When the traveling belt tensioner pulls the traveling belt, the traveling transmission pulley rotates, and when the traveling belt tensioning pulley does not tighten the traveling belt, the traveling belt tensioner rotates. When the belt is on, the travel drive wheel does not rotate.

The present creation further provides a leaf cutter, comprising: a main frame body and a cutter device rotatably combined with the main frame body, the cutter device including a composite wheel and two rotatable with the composite wheel a blade holder, the cutter arrangement further comprising a blade disposed on each of the blade holders, wherein the compound wheel comprises a first groove and a second groove spaced apart from the first groove but concentrically, a A driving device is fixed on the main frame body, and the driving device includes a rotatable driving wheel, a blade belt, which is wound between the driving wheel and the first groove of the composite wheel, and a blade The belt tensioner is arranged on the main frame body. The blade belt tensioner is constructed to be able to tighten or not tighten the blade belt. When the driving device operates and the blade belt is tightened, the driving device is linked The two blade holders rotate with the respective blades. When the driving device operates and the blade belt is not tightened, the driving device does not link the two blade holders to rotate with the blades. A brake is used to rotate the blades. provided on the main frame body, the brake includes a friction piece, and the brake includes a controlled A movable end piece is made, and the friction piece is wound between the end piece and the second groove of the composite wheel. When the end piece moves, the friction piece is not tightened or tightened. When each blade holder and each blade rotate and the blade belt is not tightened and the friction member is tightened, a braking force is generated on the cutter device, so that the rotation of each blade holder and each blade can be stopped.

The present creation will be more clearly understood following the detailed description, which, taken in conjunction with the drawings, illustrates illustrative embodiments of the present creation.

10: Leaf Cutter

12: Tool device

20: Main frame

22: First End

24: Second End

26: Pivot seat

28: Spindle

30: Shaft connection

32: Compound Wheels

34: The first slot

36: Second slot

38: Protective cover set

40: Fixing parts

42: Ontology

44: Axial Mask

46: Bolts

48: Moving Pieces

50: Activity slot

52: Blade holder

54: Shaft joint

55: Pressing pieces

56: Blade

58: Front wheel device

60: Front wheel bracket

62: Lifting mechanism

64: Front Wheel

66: Sub bracket

68: Travel gear

69: Drive

70: Travel drive wheel

71: Driving wheel

72: Blade drive slot

73: Rear Wheel

74: Travel transmission groove

76: Blade Belt

78: Travel belt

80: Brakes

82: Brake arm

84: End pieces

86: Friction parts

88: Blade Belt Tensioner

90: Blade Belt Tension Arm

92: Blade belt tension pulley

94: Travel belt tensioner

96: Travel belt tension arm

98: Driving belt tension pulley

111: Grip Department

Figure 1 is a three-dimensional exploded view of this creation.

Figure 2 is a three-dimensional combined view of this creation.

FIG. 3 is a right side view of FIG. 2 .

Figure 4 is a front view of Figure 2.

Figure 5 is a cross-sectional view taken along line 5-5 of Figure 3.

Fig. 6 is a view showing a state in which the blade is rotated by the operation of the leaf cutter.

Figure 7 is a schematic diagram of different terrains used to adjust the height of the front wheel device.

Fig. 8 is a schematic diagram of stopping the rotation of the blade by using the brake.

Fig. 9 is a state diagram when the two cartridges are adjusted to the farthest distance from each other.

FIG. 10 is a front view of FIG. 9 .

All drawings are for ease of explanation of basic teachings only, and the extension of the number, position, relationship, and size of the elements making up the illustrative embodiments will be illustrated in the drawings or will be within the skill of the art upon reading and understanding the following description. In addition, changing precise dimensions and dimension ratios to suit specific strength, weight, strength, and similar requirements is also within the skill of the art after reading and understanding the following description.

The same or similar elements are identified by the same reference numerals in the different drawings; "Faced", "Front", "Rear", "Height", "Width", "Length", "End", "Side", "Horizontal", "Vertical", etc. and similar expressions are used for the convenience of the viewer only The figures are constructed and used only to aid in the description of the illustrative embodiments.

This creation is an agricultural leaf cutter, suitable for cutting off protruding leaves such as but not limited to pineapples to open passages for people to pass through. Referring to Figures 1 to 5, the leaf cutter 10 includes a main frame body 20, the main frame body 20 includes a first end 22 and a second end 24 spaced apart from each other, the main frame body 20 further includes a sub bracket 66 fixed between the first end 22 and the second end 24, and the main frame body 20 further includes a sub bracket 66 fixed between the first end 22 and the sub bracket 66. Group pivot seat 26 . The main frame body 20 is combined with a front wheel device 58 , the front wheel device 58 includes a front wheel bracket 60 fixed on the first end 22 of the main frame body 20 , the front wheel bracket 60 and a lifting mechanism 62 In combination, a front wheel 64 is disposed at the lower end of the lifting mechanism 62 , and the lifting mechanism 62 allows adjusting the distance between the front wheel 64 and the front wheel bracket 60 to change the position of the leaf cutter 10 at the first end 22 height (see Figures 3 and 7).

The leaf cutter 10 further includes a cutter device 12 pivotally connected with the main frame body 20 , the cutter device 12 includes a rotating shaft 28 rotatably combined with the pivot base 26 , and the rotating shaft 28 includes The two shaft connecting sections 30 are respectively arranged at both ends, the two shaft connecting sections 30 each include a non-circular radial section, and the two shaft connecting sections 30 are along the axial direction of the rotating shaft 28 The two shaft connecting sections 30 protrude from both sides of the pivoting seat 26 along the axial direction of the rotating shaft 28 . One of the shaft connecting sections 30 of the rotating shaft 28 is rotatably provided to a composite wheel 32, the composite wheel 32 includes a first groove 34 and a second groove spaced from the first groove 34 but coaxial 36. In essence, the second groove 36 is located between the first groove 34 and the pivot seat 26 along the axial direction of the rotating shaft 28 .

The cutter device 12 further includes two circular blade holders 52 , each of the blade holders 52 includes a shaft connection portion 54 formed in the center, and each shaft connection portion 54 is provided with each shaft connection section 30 with a A hole whose radial cross section is consistent, and a pressing member 55 is screwed on each shaft connecting portion 54 . Each of the pressing members 55 may be formed by screws. The shaft connecting portions 54 of the blade holders 52 are respectively combined with the shaft connecting sections 30 of the rotating shaft 28 so as to be movable and rotatable together. In essence, the length of each shaft connecting section 30 along the axial direction of the rotating shaft 28 is greater than the length of each shaft connecting portion 54 of each blade holder 52 along the axial direction of the rotating shaft 28 . When the tightening member 55 has not been tightened, each blade holder 52 is allowed to move along the axial direction of the rotating shaft 28 within the length range of the combined shaft connecting section 30 . However, when the pressing members 55 are locked, the pressing members 55 abut against the corresponding shaft connecting sections 30 , so that the blade holders 52 cannot be relative to each other along the axial direction of the rotating shaft 28 . The shaft joint 30 is displaced.

The cutter assembly 12 also includes a plurality of blades 56 pivotally mounted on each blade holder 52 . For example, in the embodiment shown in the drawings, each blade holder 52 is pivotally provided with four blades 56 . It is worth mentioning that since each blade 56 can pivot relative to each blade holder 52 , when each blade holder 52 does not rotate, each blade 56 faces the ground due to gravity.

The leaf cutter 10 further includes a protective cover group 38 combined with the main frame body 20 . The protective cover set 38 includes two fixing pieces 40 and can be connected with the two fixing pieces 40 . Two movable pieces 48 that are movably joined. The two fixing members 40 each include a body 42 and an axial shield 44 extending from the outer periphery of the body 42 along the axial direction of the rotating shaft 28 , and each fixing member 40 further includes a protruding surface. A plurality of bolts 46 are formed on the outer surface of each axial shield 44, and each axial shield 44 is substantially L-shaped, so that each fixing member 40 forms an open shape. Each movable member 48 is provided with a plurality of movable grooves 50 corresponding to the plurality of bolts 46 , and each movable groove 50 has a length extending along the axial direction of the rotating shaft 28 .

The two fixing members 40 are fixedly connected to the main frame body 20 and are spaced apart from each other along the axial direction of the rotating shaft 28 and located on both sides of the main frame body 20 . The two shaft connecting sections 30 of the rotating shaft 28 protrude from the outer sides of the two fixing members 40 along the axial direction of the rotating shaft 28 , and the axial shields 44 are located on the outer periphery of the blade holders 52 . And in the upper and rear positions, for example, as shown in FIG. 3 , the axial shields 44 only cover the upper and the rear of the blade holders 52 (the direction toward the person), and the axial shields 44 do not cover the respective blades. The front and the bottom of the blade holder 52, and the distance between each axial shield 44 and each of the blade holders 52 along the radial direction of the rotating shaft 28 is greater than the length of each blade 56, so that when the blade 56 is unfolded There will be no interference with the axial shields 44 .

The movable members 48 are combined with the axial shields 44 so as to be movable along the axial direction of the rotating shaft 28 . In essence, each bolt 46 of each axial shield 44 is accommodated in each movable slot 50 of each movable member 48, so that each movable member 48 is allowed to move along the rotating shaft without being locked. The axial direction of 28 moves relative to each of the fixing members 40 (see Figures 4 and 10), on the contrary, if each movable member 48 is locked (for example, a nut is used to screw on each bolt 46), the The movable member 48 cannot move along the axial direction of the rotating shaft 28 .

It should be noted that the two blade holders 52 and the blade 56 need to always be located between the two axial shields 44 and/or the movable member 48 along the axial direction of the rotating shaft 28 . That is, for safety reasons, the two blade holders 52 and the plurality of blades 56 cannot protrude from the outermost side of the protective cover group 38 along the axial direction of the rotating shaft 28 (retract from the protective cover group 38 ). .

The leaf cutter 10 further includes a traveling device 68 fixed on the main frame body 20 and a driving device 69 for providing power required for operation. The traveling device 68 is located between the cutter device 12 and the second end 24 of the main frame body 20 , the traveling device 68 may be constituted by a gearbox with power transmission, and the traveling device 68 includes an internal A traveling transmission wheel 70 linked and exposed by the speed change mechanism and a rear wheel 73 linked with the traveling transmission wheel 70 through the internal speed change mechanism, the rear wheel 73 cooperates with the front wheel 64 to support the entire leaf cutter 10 To drive (walk or move). The rotational force of the travel transmission wheel 70 is linked with the operation of the internal speed change mechanism to drive the rear wheel 73 to rotate (including forward, backward and change of rotational speed), so that the leaf cutter 10 obtains driving power.

Furthermore, the leaf cutter 10 includes a grip portion 111 fixed on the traveling device 68 , and the grip portion 111 is used to support the leaf cutter 10 for traveling. And the handle part 111 can be provided with a plurality of pull handles that can pull the wire (as shown in Figure 2)

The driving device 69 is fixed on the second end 24 of the main frame body 20 , and the driving device 69 can be, but is not limited to, constituted by a commercially available engine. The driving device 69 includes a driving wheel 71 driven by the engine to rotate. The driving wheel 71 includes a blade driving groove 72 and is spaced apart from the blade driving groove 72 along the axial direction of the rotating shaft 28 but coaxial. A travel drive slot 74 of the heart. The blade drive groove 72 is aligned with the first groove 34 of the composite wheel 32 along the axial direction of the rotating shaft 28 , and the travel drive groove 74 is aligned with the travel drive wheel 70 along the axial direction of the rotating shaft 28 . Align.

A blade belt 76 is wound between the blade driving groove 72 of the driving pulley 71 and the first groove 34 of the compound pulley 32 . A travel belt 78 is wound between the travel transmission groove 74 of the driving pulley 71 and the travel transmission pulley 70 . It is worth mentioning that the length of the blade belt 76 is slightly larger than the distance between the compound pulley 32 and the driving pulley 71 , so the blade belt 76 is allowed to be loose so that the driving pulley 71 cannot easily transmit power through the blade. The belt 76 is transmitted to the compound pulley 32 . The length of the traveling belt 78 is slightly larger than the distance between the traveling transmission pulley 70 and the driving pulley 71 , so the traveling belt 78 is allowed to be loose so that the driving pulley 71 cannot easily transmit the power through the traveling belt 78 to the driving pulley 71 . The travel transmission wheel 70 is described.

The leaf cutter 10 also includes a blade belt tensioner 88 and a travel belt tensioner 94 pivoted to the main frame body 20 . The blade belt tensioner 88 includes a blade belt tension arm 90 pivotally connected to the auxiliary bracket 66 and a blade belt tension pulley 92 pivoted at the end of the blade belt tension arm 90. The blade belt tension arm 90 and one of the handle of the handle portion 111 are linked through a steel cable, so pulling the handle can link the blade belt tension arm 90 to pivot to change the position of the blade belt tension pulley 92 .

The traveling belt tensioner 94 includes a traveling belt tensioning arm 96 pivotally connected with the main frame body 20 and a traveling belt tensioning pulley 98 pivoted at the end of the traveling belt tensioning arm 96 . 96 is linked with another handle of the handle portion 111 through a wire rope, so pulling this handle can link the travel belt tension arm 96 to pivot to change the position of the travel belt tension pulley 98 .

As shown in the drawings, the leaf cutter 10 also includes a brake 80 for braking the cutter arrangement 12 . The brake 80 includes a brake arm 82 pivotally connected to the auxiliary bracket 66 and an end piece 84 non-rotatably disposed at the end of the brake arm 82 . the compound A friction piece 86 is wound between the second groove 36 of the wheel 32 and the end piece 84 , and the friction piece 86 may be constituted by a belt. The size of the friction member 86 is slightly larger than the distance between the end member 84 and the composite wheel 32, so that the friction member 86 is allowed to be in a loose state.

The brake arm 82 of the brake 80 is linked with the handle 111 through a wire rope, so pulling the handle can drive the brake arm 82 to pivot to change the end piece 84 s position.

The structure and features of this creation have been described, and in order to help you better understand the technical features of this creation, the operation of this creation is further explained. It is assumed that the drive device 69 is an engine in a running state, and the blade belt 76 and the running belt 78 are assumed to be loose. In this way, although the driving pulley 71 rotates, since the blade belt 76 and the running belt 78 are both in a loose state (not taut), the driving pulley 71 cannot or cannot easily pass the blade belt. 76 and the traveling belt 78 transmit power to the compound wheel 32 and the traveling transmission wheel 70 respectively, furthermore, the cutter device 12 keeps not rotating (or rotates very slowly), and the rear wheel 73 of the traveling device 68 does not rotate .

Assuming that a person wants to drive the leaf cutter 10 to other positions, pull a handle corresponding to the drive belt tensioner 94 so that the drive belt tension pulley 98 presses the drive belt 78 to cause the drive belt 78 Therefore, the driving pulley 71 transmits the power to the travel transmission wheel 70 through the travel belt 78. When the travel transmission wheel 70 rotates, the power is transmitted to the rear through the gearbox. The rotation of the rear wheel 73 pushes the entire leaf cutter 10 to travel and move. It can be understood in this way that when the leaf cutter 10 is to be stopped and not driven, the handle corresponding to the traveling belt tensioner 94 is also operated to move the traveling belt tension pulley 98 . Move to the position where the traveling belt 78 is loosened, so that the power of the driving device 69 is not transmitted to the traveling device 68 .

Assuming that a person is to start cutting off a protruding blade such as, but not limited to, a pineapple, the handle corresponding to the blade belt tensioner 88 is operated to move the blade belt tensioner 92 against pressure to tighten the blade belt 76, so that The driving pulley 71 transmits power to the compound pulley 32 through the blade belt 76 to make it rotate. The rotating shaft 28 rotates together with the composite wheel 32 to drive the two blade holders 52 to rotate together. When a plurality of blades 56 rotate rapidly together with the two blade holders 52, each blade 56 is driven by centrifugal force. The deployment protrudes beyond the outer periphery of the cartridge 52 (as shown in Figure 6). In such a state, branches and leaves (for example, leaves of pineapple) that enter the rotational movement range of each blade 56 will be cut by each blade 56 . In addition, when the cutter device 12 rotates, power is allowed to be transmitted to the traveling device 68 , so that the leaf cutter 10 can cut branches and leaves that enter the rotational movement range of each blade 56 while traveling.

Referring to FIG. 7, it is assumed that the ground where the leaf cutter 10 is located is partially raised and is higher than the bottom end of the rotation path of the blades 56. In this state, the front wheel device 58 is allowed to be used. The lift mechanism 62 adjusts the distance between the front wheel 64 and the main frame body 20 . When the distance between the front wheel 64 and the main frame body 20 is farther, the leaf cutter 10 is located in the One side of the first end 22 of the main frame body 20 will be lifted upwards, which further increases the distance between the cutter device 12 and the ground, so as to prevent the blades 56 from hitting the ground when rotating.

When the required operation is completed and the operation of the leaf cutter 10 is to be stopped, the travel belt tensioner 94 is controlled to loosen the travel belt 78 by using the handles provided on the handle portion 111, so that the The power of the driving device 69 is not transmitted to the traveling device 68, and the leaf cutter 10 stops traveling (moving).

The blade belt tensioner 88 is operated to loosen the blade belt 76, so that the drive means 69 does not continue to transmit power to the cutter means 12, however even if the power of the drive means 69 is cut off to transmit power to the cutter The device 12, the two blade holders 52, the plurality of blades 56, the composite wheel 32 and the rotating shaft 28 continue to rotate at high speed due to inertia (still stop after a period of time). Referring to Fig. 8, in order to make the cutter device 12 stop working quickly, the handle on the handle 111 is used to operate the end piece 84 of the brake 80 to move and tighten the belt formed by the belt. The friction piece 86, because the end piece 84 does not rotate, the tensioned friction piece 86 produces enough frictional resistance for braking to the second groove 36 of the composite wheel 32, further making the two blades The frame 52, the plurality of blades 56, the compound wheel 32, and the shaft 28 stop rotating rapidly.

Figures 1 to 8 shown in this drawing are positions where the distance between the two blade holders 52 is the smallest (the two blade holders 52 are located at positions closest to the main frame body 20). The distance between the two blade holders 52 can be adjusted according to actual environmental requirements. For example, when the interval between two rows of pineapple crops in a pineapple field is small, the two blade holders 52 are adjusted to have a smaller distance apart. If the distance between the two rows of pineapple crops is relatively large, the two blade holders 52 are correspondingly adjusted to a relatively small distance apart, and in this state, the movable parts of the protective cover groups 38 48 does not need to protrude the corresponding axial shield 44 relatively, because in this state, the two blade holders 52 are located between the outer sides of the two axial shields 44 along the axial direction of the rotating shaft 28 Inside.

Before adjustment, the pressing member 55 of each blade holder 52 should be unscrewed, so that the blade holder 52 is allowed to move to an appropriate position along the axial direction of the rotating shaft 28 on the corresponding shaft connecting section 30 . As shown in Figures 9 and 10, it is assumed that the correspondence between the crops needs to be adjusted to the position with the largest distance between the two blade holders 52 (the end of the shaft connection portion 54 of each blade holder 52 is approximately the same as the shaft connection section 3 The ends of 0 are cut evenly), after each blade holder 52 is adjusted to the most appropriate position corresponding to the crop interval, the pressing members 55 are further tightened, so that each blade holder 52 cannot be positioned relative to the rotating shaft 28 Each shaft connecting segment 30 of the shaft moves along the axial direction of the rotating shaft 28 .

Assuming that the two blade holders 52 are located outside the outer sides of the two axial shields 44 along the rotating shaft 28 (the blades 56 protrude from the protection cover groups 38 ), it is dangerous to use in this way It is relatively high, and the fragments of each blade 56 are likely to be splashed to the operator behind, so the nut on each bolt 46 is further loosened, so that each movable member 48 is allowed to move along the axial direction relative to each axial shield 44. The axial direction of the rotating shaft 28 moves to the two outer sides until the blade holders 52 and the plurality of blades 56 are located within the outer sides of the movable members 48 along the rotating shaft 28. In this state, the cutter device 12 has better safety in operation.

Each blade holder 52 of the cutter device 12 of the present invention allows an appropriate distance to be adjusted according to the interval of crop planting, so when cutting off the protruding branches and leaves of the crop, the crop itself will not be hurt, and the crop will not be damaged due to the wide space between the crops. The problem of being unable to cut off the protruding branches and leaves of crops.

The movable parts 48 of the protective cover group 38 can be adjusted according to the spacing distances set by the blade holders 52 to keep the blade holders 52 and the blades 56 from protruding outside the protective cover group 38 , which can effectively improve safety.

When the cutter device 12 is to be stopped after running, the brake 80 can apply sufficient frictional resistance for braking, so that each blade 56 stops rotating quickly, which is more convenient in operation.

The basic teachings of the present creation have been described, and many extensions and variations will be apparent to those of ordinary skill in the art. For example, the friction member 86 of the brake 80 may be an item other than a belt, for example, the friction member 86 may be made of a high friction coefficient material. The brake arm 82 is pivoted to cause the friction member 86 to press against or separate from the composite wheel 32 to control whether the brake 80 generates sufficient braking friction on the cutter device 12, Such simple changes should also belong to the scope of this creation.

Since the invention disclosed in the specification may be embodied in other specific forms that do not depart from the spirit or general characteristics of the invention, and some of these specific forms have been pointed out, the embodiments disclosed in the specification should be regarded as illustrative rather than limiting. The scope of this creation is defined by the appended claims, rather than by the above description, and all changes that fall within the scope of equivalent meaning and scope of the claims will still be included within its scope.

10: Leaf Cutter

12: Tool device

20: Main frame

22: First End

26: Pivot seat

28: Spindle

30: Shaft connection

32: Compound Wheels

38: Protective cover set

40: Fixing parts

42: Ontology

44: Axial Mask

46: Bolts

48: Moving Pieces

50: Activity slot

52: Blade holder

54: Shaft joint

55: Pressing pieces

56: Blade

58: Front wheel device

60: Front wheel bracket

62: Lifting mechanism

64: Front Wheel

68: Travel gear

70: Travel drive wheel

73: Rear Wheel

76: Blade Belt

78: Travel belt

80: Brakes

84: End pieces

86: Friction parts

111: Grip Department

Claims (13)

A leaf cutter, comprising: a main frame body; a cutter device, which is rotatably combined with the main frame body, the cutter device includes a rotating shaft, the rotating shaft includes two shaft connecting sections at both ends, the The cutter device further includes two blade holders movably combined with the two shaft connecting sections and a blade provided on the two blade holders, the two blade holders rotate together with the rotating shaft, where In the state where the rotating shaft does not rotate, the two blade holders can be adjusted along the axis of the two blade holders along the axis of the rotating shaft within the range of the two shaft connecting sections along one axial direction included in the rotating shaft. A driving device is fixed on the main frame body, and the operation of the driving device causes the rotation of the rotating shaft. The leaf cutter according to claim 1, further comprising a protective cover group, wherein the protective cover group includes: two fixing parts, respectively fixed on both sides of the main frame body and along the The axial direction of the rotating shaft is located between the two blade holders, each fixing member includes an axial shield extending along the axial direction of the rotating shaft, and the respective blades of the two blade holders are located in the axial direction The inner periphery of the cover is spaced from the axial cover, and the two shaft connecting sections of the rotating shaft are located outside the two fixed pieces along the axial direction of the rotating shaft; The axial movement of the rotating shaft is combined with two axial shields, and the two blade holders and the blades are located between the two axial shields and/or the movable parts along the axial direction of the rotating shaft . The leaf cutter according to claim 2, wherein each axial shield comprises a plurality of bolts formed on an outer surface, and each movable member comprises a plurality of axial directions along the rotating shaft The extended movable grooves, and the bolts are accommodated in the movable grooves, so that the range of the axial movement of the movable parts along the rotating shaft is limited by the length of the movable grooves. The leaf cutter according to claim 1 or 2, wherein the two shaft connecting sections of the rotating shaft comprise non-circular radial cross-sections, and each of the blade holders includes a connecting section for connecting with the respective shaft sections. A movably combined shaft connection portion, each shaft connection portion includes a radial section corresponding to each shaft connection segment, and each shaft connection portion is combined with a pressing piece, when the each pressing piece is When loosening, each blade holder can move along the axial direction of the rotating shaft within the range of the corresponding shaft connection. Axial movement. The leaf cutter as claimed in claim 1, further comprising: a blade belt, wherein the driving device includes a drive wheel, and the cutter device further includes a composite wheel combined with the rotating shaft to rotate together, The composite wheel includes a first groove, and the blade belt is wound between the driving wheel and the first groove of the composite wheel; a blade belt tensioner is combined with the main frame body, and the blade belt tension The device includes a controlled movable blade belt tension wheel, when the blade belt tension wheel tightens the blade belt, the rotating shaft rotates, and when the blade belt tension wheel does not tighten the blade belt, the The shaft does not rotate. According to the leaf cutter described in claim 5, the cutter device further comprises: a brake provided on the main frame body, the brake includes a friction member, and the brake includes a controlled a movable one end piece configured to move the friction piece with or without braking the compound wheel, when the blade belt is not under tension and the friction piece brakes the compound wheel Each of the cartridges and each of the blades can be stopped from rotating. The leaf cutter as claimed in claim 6, the brake further comprises a brake arm pivotally connected with the main frame body, the end piece is non-rotatably combined with the brake arm, the composite The wheel further includes a second groove spaced apart from the first groove but coaxial, and the friction member is formed by a belt wound between the end member and the second groove of the composite wheel, so that the The brake arm is controlled to pivot to cause the displacement of the end piece, so that the friction piece is tightened or not tightened, and when the friction piece is tightened, a frictional resistance sufficient to brake the composite wheel is generated. When the friction member is not tightened, the friction member does not generate enough frictional resistance for braking to the composite wheel. The leaf cutter according to claim 5, further comprising: a traveling device fixed on the main frame body, the traveling device comprising a traveling transmission wheel and a rear wheel, the traveling transmission wheel The rotation is linked to the rotation of the rear wheel; a driving belt, the driving wheel further comprises a driving transmission groove and a blade transmission groove spaced from the driving transmission groove but coaxial, the blade belt is wound around the Between the first groove of the composite wheel and the blade transmission groove of the driving wheel, the driving belt is wound between the driving transmission groove of the driving wheel and the driving transmission wheel; a driving belt tensioner is connected with the main driving wheel. The frame is combined, and the travel belt tensioner includes a travel belt tension pulley that can be moved under control. When the travel belt tension pulley tightens the travel belt, the travel transmission pulley rotates. When the travel belt tension When the wheel does not tighten the travel belt, the travel transmission wheel does not rotate. A leaf cutter, comprising: a main frame body; a cutter device rotatably combined with the main frame body, the cutter device comprising a compound wheel and two blade holders that rotate together with the compound wheel, the The cutter device further includes a A blade on each blade holder, wherein the compound wheel includes a first groove and a second groove spaced apart from the first groove but coaxial; a driving device fixed on the main frame body On the upper side, the driving device includes a rotatable driving wheel; a blade belt is wound between the driving wheel and the first groove of the composite wheel; a blade belt tensioner is arranged on the main frame body, The blade belt tensioner is constructed to tension or not tension the blade belt, and when the drive device operates and the blade belt is tensioned, the drive device links the two blade holders with the blades When the driving device operates and the blade belt is not tightened, the driving device does not link the two blade holders to rotate with the blades; a brake is arranged on the main frame body, the The brake includes a friction piece, the brake includes an end piece that is controlled to move, the friction piece is wound between the end piece and the second groove of the composite wheel, and when the end piece moves So that the friction members are not taut or taut, when the blade holders and the blades are rotated and the blade belts are not taut and the friction members are taut, a braking force is generated on the tool device so that the Each blade holder and each blade stop rotating. The leaf cutter according to claim 9, further comprising: a traveling device fixed on the main frame body, the traveling device comprising a traveling transmission wheel and a rear wheel, the traveling transmission wheel The rotation is linked to the rotation of the rear wheel; a driving belt, the driving wheel further comprises a driving transmission groove and a blade transmission groove spaced from the driving transmission groove but coaxial, the blade belt is wound around the Between the first groove of the composite wheel and the blade transmission groove of the driving wheel, the driving belt is wound between the driving transmission groove of the driving wheel and the driving transmission wheel; a driving belt tensioner is connected with the main driving wheel. Combined with the frame body, the travel belt tensioner can be constructed Tighten or not tighten the traveling belt, when the driving device operates and the traveling belt is tensioned, the driving device rotates in conjunction with the rear wheel, and when the driving device operates and the traveling belt is not tightened, The driving device is not linked so that the rear wheel rotates. According to the leaf cutter described in claim 9, the cutter device further comprises a rotating shaft, the rotating shaft includes two shaft connecting sections located at both ends, and the cutting tool device further includes the two shaft connecting sections Two blade holders that are movably combined and one blade provided on the two blade holders, the two blade holders rotate together with the rotating shaft, and when the rotating shaft does not rotate, the two blade holders are not rotated. The blade holder can adjust the distance between the two blade holders along the axial direction of the rotation shaft within the range of the two shaft connecting sections. The leaf cutter according to claim 11, further comprising a protective cover group, wherein the protective cover group includes: two fixing parts, respectively fixed on both sides of the main frame body and along the The axial direction of the rotating shaft is located between the two blade holders, each fixing member includes an axial shield extending along the axial direction of the rotating shaft, and the respective blades of the two blade holders are located in the axial direction The inner periphery of the cover is spaced from the axial cover, and the two shaft connecting sections of the rotating shaft are located outside the two fixed pieces along the axial direction of the rotating shaft; The axial movement of the rotating shaft is combined with two axial shields, and the two blade holders and the blades are located between the two axial shields and/or the movable parts along the axial direction of the rotating shaft . The leaf cutter as claimed in claim 12, wherein the two shaft connecting sections of the rotating shaft comprise non-circular radial cross-sections, and each of the blade holders includes a section for moving with the respective shaft connecting sections. A shaft connection part that is combined with the ground, each shaft connection part includes a radial section corresponding to each shaft connection segment, and each shaft connection part is combined with a pressing piece, when the each pressing piece is loosened , each blade holder can be along the As the axial direction of the rotating shaft moves within the range of the corresponding shaft connecting section, when the pressing members are locked, the blade holders cannot move along the axial direction of the rotating shaft.

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