CN207476498U - A kind of beta pruning instrument felled for forestry - Google Patents

Abstract

The utility model is related to forestry machinery field of components, a kind of beta pruning instrument felled for forestry, including operation locomotive and beta pruning instrument, beta pruning instrument includes beta pruning bearing, left beta pruning blade, beta pruning left hydraulic cylinder, right beta pruning blade and the right hydraulic cylinder of beta pruning, symmetrical on beta pruning bearing to be respectively arranged with blade hole seat and hydraulic press hole seat；Beta pruning left hydraulic cylinder undersetting end and the right hydraulic cylinder undersetting end of beta pruning are rotatably connected to respectively in two hydraulic press hole seats of branches and leaves collecting box both sides, right beta pruning blade and left beta pruning blade structure are symmetrical, left beta pruning blade and right beta pruning blade are rotatably connected to respectively in two blade hole seats, the outer coercive mechanism of the piston rod upper end of beta pruning left hydraulic cylinder and left beta pruning blade can rotation be hinged, the piston rod upper end of the right hydraulic cylinder of beta pruning and right beta pruning blade outside coercive mechanism can rotation be hinged；Beta pruning left hydraulic cylinder and the right hydraulic cylinder of beta pruning control respectively to be closed up rotation or separates rotation relatively relatively between left beta pruning blade and right beta pruning blade.

Description

A kind of beta pruning instrument felled for forestry

Technical field

The utility model is related to forestry machinery field of components, the China fir straight and upright especially suitable for trunk in large area artificial afforestration A kind of beta pruning instrument felled for forestry that tree etc. is lumbered.

Background technology

With the continuous social and economic development, it is to be growing on and on to the demand of timber, artificial afforestration is come into being.People The characteristics of work is afforested is that planning is neat, and forest diameter difference is small, quantity is big, is particularly suitable for do mechanization operation.Forest fells process In need to carry out beta pruning and segment processing, to process and to transport, and needed when carrying out a large amount of lumbering work to trees Length and diameter is for statistical analysis, and traditional artificial fell generally uses common hacksaw or electric saw, inefficiency and danger Dangerous coefficient is high, and cost of labor is also being continuously improved in addition, China it is less for the equipment research and development of tree-dozer and start to walk compared with In evening, technology is relatively immature, and development speed is slow.Only by the existing logger in China and traditional artificial Cutting technic Cannot meet the needs of Modern Forestry production, therefore, research and develop and will become following hair using a kind of multi-functional tree-dozer The inexorable trend of exhibition.The links of do mechanization operation are required for the special mechanism part with dedicated functions.

Invention content

In order to realize above-mentioned function, Felling Efficiency is improved, the utility model adopts the following technical solution：

A kind of beta pruning instrument felled for forestry, including operation locomotive and beta pruning instrument, operation locomotive from front to back according to It is secondary to be equipped with driver's cabin, branches and leaves collecting box and trunk collecting box, lumbering device, hold-fast body, saw are additionally provided on the operation locomotive Section utensil and driving guide wheel group, the beta pruning instrument is arranged at the top of branches and leaves collecting box back plate, as improvement：The beta pruning instrument Including beta pruning bearing, left beta pruning blade, beta pruning left hydraulic cylinder, right beta pruning blade and the right hydraulic cylinder of beta pruning, controlled on beta pruning bearing Symmetrically it is respectively arranged with blade hole seat and hydraulic press hole seat；Beta pruning left hydraulic cylinder undersetting end and the right hydraulic cylinder undersetting of beta pruning End is rotatably connected to respectively in two hydraulic press hole seats of branches and leaves collecting box both sides, the right beta pruning blade and left lopping shears Chip architecture is symmetrical, and left beta pruning blade and right beta pruning blade are rotatably connected to respectively in two blade hole seats, the left liquid of beta pruning The outer coercive mechanism of the piston rod upper end of cylinder pressure and left beta pruning blade can rotation be hinged, the piston rod upper end of the right hydraulic cylinder of beta pruning with The outer coercive mechanism of right beta pruning blade can rotation be hinged；Beta pruning left hydraulic cylinder and the right hydraulic cylinder of beta pruning control the left beta pruning blade respectively It is opposite between the right beta pruning blade to close up rotation or separate rotation relatively.

The utility model has the advantages that：

The left beta pruning blade and the right beta pruning blade are controlled using beta pruning left hydraulic cylinder and the right hydraulic cylinder of beta pruning respectively Between it is opposite close up rotation or separate rotation relatively, convenient for remote control operation；Automatic hand-bill is set on branches and leaves collecting box Tool cleans out unwanted branches and leaves, and great convenience is brought to the processing in trunk later stage.

Description of the drawings

Fig. 1 is that the utility model beta pruning instrument 400 is used for the side external view that forestry is felled.

Fig. 2 is that the utility model beta pruning instrument 400 is used for the stereoscopic figure that forestry is felled.

Fig. 3 is the front view of the utility model beta pruning instrument 400.

Fig. 4 is the stereo appearance figure of the utility model beta pruning instrument 400.

Fig. 5 is the independent stereogram of the beta pruning bearing 404 in Fig. 4.

Fig. 6 is that hold-fast body 300 embraces the stereogram that trunk 900 starts sawmilling state.

Fig. 7 is the stereogram that journey is rotated through after the trunk 900 in Fig. 6 is sawed-off.

Fig. 8 is the stereogram when trunk 900 in Fig. 7 is rotated to horizontal put.

Fig. 9 is the vehicle frame of operation locomotive 100 and its welded front view.

Figure 10 is the vehicle frame of operation locomotive 100 and its welded stereo appearance figure.

Figure 11 is the stereo appearance figure after the lumbering removal support crotch 280 of device 200.

Figure 12 is the stereo appearance figure for supporting crotch 280.

Figure 13 is the vertical view for supporting crotch 280.

Figure 14 is the sectional view in A-A faces in Figure 13.

Figure 15 is the installation condition stereogram of hold-fast body 300.

Figure 16 is front view when the linkage bull stick 350 in hold-fast body 300 is horizontal.

Figure 17 is vertical view when the linkage bull stick 350 in hold-fast body 300 is horizontal.

Figure 18 is the front view that hold-fast body 300 clamps 900 rotation process of trunk.

Figure 19 is the stereo appearance figure that hold-fast body 300 clamps 900 rotation process of trunk.

Figure 20 is the front view for overturning sliding block 370.

Figure 21 is the stereo appearance figure for overturning sliding block 370.

Figure 22 is the front view of linkage bull stick 350.

Figure 23 is the stereo appearance figure of linkage bull stick 350.

Figure 24 is the front view of right folded arm bar 310.

Figure 25 is the stereo appearance figure of right folded arm bar 310.

Figure 26 is the front view for sawing section utensil 500.

Figure 27 is the stereo appearance figure for sawing section utensil 500.

Figure 28 is to saw the stereo appearance figure that section utensil 500 removes left sliding slot column 510 and right rail column 590.

Figure 29 is the solid for sawing section slide motor 520 and its 522 connection structure of transmitter frame 521 and photoelectric sensing transmitter Figure.

Figure 30 is the solid for sawing segment sync sliding block 550 and its 552 connection structure of receiver frame 551 and photoelectric sensing receiver Figure.

Specific embodiment

The utility model is further described with reference to the accompanying drawings and detailed description：

To being merely representative of its 900 part of trunk by harvest of forest trees in Fig. 6-8 and 18-19, branch and leaf is omitted.

First, structure feature：

Shown in Fig. 1 to Fig. 5, a kind of beta pruning instrument felled for forestry, including operation locomotive 100 and beta pruning instrument 400, Operation locomotive 100 is equipped with driver's cabin 110, branches and leaves collecting box 120 and trunk collecting box 130, the working rig successively from front to back Lumbering device 200, hold-fast body 300, saw section utensil 500 and driving guide wheel group, the beta pruning instrument 400 are additionally provided on vehicle 100 It is arranged at the top of 120 back plate of branches and leaves collecting box, as improvement：The beta pruning instrument 400 includes beta pruning bearing 404, left lopping shears Piece 410, beta pruning left hydraulic cylinder 420, right beta pruning blade 430 and the right hydraulic cylinder 440 of beta pruning, symmetrical point on beta pruning bearing 404 It is not provided with blade hole seat 125 and hydraulic press hole seat 126；420 undersetting end of beta pruning left hydraulic cylinder and the right hydraulic cylinder 440 of beta pruning Undersetting end is rotatably connected to respectively in two hydraulic press hole seats 126 of 120 both sides of branches and leaves collecting box, the left lopping shears Piece 410 and the right beta pruning blade 430 are semicircular arc, the right beta pruning blade 430 and left 410 structure pair of beta pruning blade Claim, left beta pruning blade 410 and right beta pruning blade 430 are rotatably connected to respectively in two blade hole seats 125, the left liquid of beta pruning The piston rod upper end of cylinder pressure 420 and left 410 outer coercive mechanism of beta pruning blade can rotation be hinged, the piston of the right hydraulic cylinder 440 of beta pruning Bar upper end and right 430 outer coercive mechanism of beta pruning blade can rotation be hinged；Beta pruning left hydraulic cylinder 420 and the right hydraulic cylinder 440 of beta pruning divide It does not control and closes up rotation relatively between the left beta pruning blade 410 and the right beta pruning blade 430 or separate rotation relatively.

Involved hydraulic cylinder control system controls operating system for well known hydraulic cylinder in embodiment, repeats no more.

Shown in Fig. 6 to Figure 10,110 cover board of driver's cabin is equipped with bull stick hole seat 111, the branches and leaves collecting box 120 Rank cover board is equipped with overturning 121 and four hydraulic pressure fixing threaded hole 129 of sliding slot, and bull stick hole seat 111 is consolidated with overturning 121 and four hydraulic pressure of sliding slot Determine the cooperatively fixed hold-fast body 300 of screw hole 129；The cross section of the overturning sliding slot 121 is "convex" shaped, described The second guide wheel hole seat 122 is equipped at the top of 120 foreboard of branches and leaves collecting box, the is equipped at the top of 120 back plate of branches and leaves collecting box Three guide wheel hole seats 124,122 both sides of the second guide wheel hole seat are symmetrically provided with two slope bars 123, third guide wheel hole seat 124 Rear setting is symmetrically set there are two blade hole seat 125 and two hydraulic press hole seats 126, two blade hole seats 125 and two liquid The common fixed beta pruning instrument 400 of press hole seat 126；Left sliding slot column 510 is set at the top of 130 foreboard of trunk collecting box With right rail column 590, saw section utensil 500 is installed on left sliding slot column 510 and right rail column 590；The trunk is collected Sensor installing plate 131 is equipped at the top of 130 back plate of case, range sensor 604 is fixed on sensor installing plate 131.

The driving guide wheel group includes the first driving guide wheel 601, second and drives guide wheel 602 and third driving guide wheel 603, institute It states the first driving guide wheel 601 to be rotatably connected in the first guide wheel hole seat 353 on linkage bull stick 350 by pivot pin, described the Two driving guide wheels 602 are rotatably connected to by pivot pin in the second guide wheel hole seat 122, and the third driving guide wheel 603 is logical It crosses pivot pin to be rotatably connected in the third guide wheel hole seat 124, the first driving guide wheel 601, second drives guide wheel 602 and third Guide wheel 603 is driven by its own configuration motor driving.

As illustrated in figs. 11-14, the lumbering device 200 includes support crotch 280, lumbering left hydraulic cylinder 210, the left chain of lumbering Wheel 220, lumbering slide motor 230, timber cutting chain saw 240, the right sprocket wheel 250 of lumbering, lumbering synchronous slider 260 and the right hydraulic cylinder of lumbering 270, the support crotch 280 is made of left support bar 282, right support bar 286, connecting rod 283 and two fixed links 281, institute Connecting rod 283 is stated between left support bar 282 and right support bar 286, supports two fixed links 281 welding on crotch 280 solid 110 bottom of driver's cabin is scheduled on, horizontal lumbering straight slot 284 is equipped on left support bar 282 and right support bar 286, horizontal lumbering is slided Slot 285 and hydraulic cylinder placement hole 287, the hydraulic cylinder placement hole 287 is through-hole and is arranged on left support bar 282 and right support bar 286 tail portion, the lumbering left hydraulic cylinder 210 are fixed in the hydraulic cylinder placement hole 287 on left support bar 282, left liquid of lumbering Lumbering left piston bar 211 on cylinder pressure 210 is fixedly connected with lumbering slide motor 230, the lumbering slide motor 230 and left branch Horizontal lumbering sliding slot 285 on strut 282 is slidably connected, and the left sprocket wheel 220 of lumbering is fixed on lumbering sliding block by key connection In the shaft of motor 230, the right hydraulic cylinder 270 of lumbering is fixed in the hydraulic cylinder placement hole 287 on right support bar 286, is cut down Lumbering right piston bar 271 on the right hydraulic cylinder 270 of wood is fixedly connected with lumbering synchronous slider 260, the lumbering synchronous slider 260 It is slidably connected with the horizontal lumbering sliding slot 285 on right support bar 286, the right sprocket wheel 250 of lumbering can with lumbering synchronous slider 260 Rotatable connection, the timber cutting chain saw 240 are wound on the left sprocket wheel 220 of lumbering and lumber on right sprocket wheel 250, and timber cutting chain saw 240 passes through water Flat lumbering straight slot 284；The lumbering device 200 is fixed on the chassis of 110 bottom of driver's cabin.

As shown in Figure 15-25, the hold-fast body 300 includes right folded arm bar 310, left folded arm bar 330, holds hydraulic cylinder tightly 340th, link bull stick 350, drive link 360, overturning sliding block 370 and overturning hydraulic cylinder 380, and the overturning hydraulic cylinder 380 is fixed On the four hydraulic pressure fixing threaded holes 129 at 120 top of branches and leaves collecting box, the piston rod for overturning hydraulic cylinder 380 is rotatable by pivot pin It is connected in the vertical hole seat 371 of overturning sliding block 370, the overturning sliding block 370 and the overturning sliding slot on branches and leaves collecting box 120 121 are slidably matched, and described 360 one end of drive link is rotatably connected to the horizontal hole seat 372 of overturning sliding block 370 by pivot pin On, the other end is rotatably connected to by pivot pin in the connecting rod hole seat 351 of linkage bull stick 350, is also set on the linkage bull stick 350 There are two sliding slot 352 is held tightly, 350 lower section of linkage bull stick is equipped with the first guide wheel hole seat 353, and two are held tightly sliding slot 352 with linkage The central symmetry of bull stick 350, the right folded arm bar 310 are equipped with V shaped slab 311, two convex sliding blocks 313 and a pivot pin hole seat 312, left 330 structure of folded arm bar and right folded arm bar 310 are full symmetric, and the holding hydraulic cylinder 340 uses double rod type piston Cylinder, hold tightly the piston rod at hydraulic cylinder 340 both ends by pivot pin respectively with the pin hole on right folded arm bar 310 and left folded arm bar 330 Seat 312 is rotatably connected, two convex sliding blocks on two convex sliding blocks 313 and left folded arm bar 330 on right folded arm bar 310 313 hold sliding slot 352 tightly with two on linkage bull stick 350 is slidably matched.The hold-fast body 300 is fixed on driver's cabin 110 and covers On plate, the first driving guide wheel 601 is installed on the hold-fast body 300, the hold-fast body 300 can be with relative activity machine Vehicle rotation about 100, hold-fast body 300 are equipped with right folded arm bar 310 and left folded arm bar 330, right folded arm bar 310 and left folded arm bar 330 end is V shaped slab 311, and the right folded arm bar 310 and left folded arm bar 330 can be along the holding sliding slots on hold-fast body 300 352 come closer or unclamp outward.

As shown in figures 26-28, the saw section utensil 500 include the left sliding slot column 510, the right rail column 590, Saw section left hydraulic cylinder 570, the right hydraulic cylinder 580 of saw section, the left sprocket wheel 530 of saw section, saw section slide motor 520, saw section chain saw 540, saw The right sprocket wheel 560 of section, saw segment sync sliding block 550, transmitter frame 521, receiver frame 551, photoelectric sensing transmitter 522 and photoelectric transfer Feel receiver 552；The left sliding slot column 510 and the right rail column 590 are respectively welded before being fixed on trunk collecting box 130 Both sides at the top of plate, left 510 longitudinal direction of sliding slot column are equipped with vertical saw section sliding slot 511, and transverse direction is equipped with vertical saw section straight slot 512, the right rail column 590 and left 510 symmetrical configuration of sliding slot column, the saw section left hydraulic cylinder 570 are fixed on left sliding slot 510 bottom of column, the piston rod of saw section left hydraulic cylinder 570 are fixedly connected with saw section slide motor 520, saw section slide motor 520 It is slidably matched with the vertical saw section sliding slot 511 on left sliding slot column 510, the saw left sprocket wheel 530 of section is fixed on by key connection In the shaft for sawing section slide motor 520, the saw right hydraulic cylinder 580 of section is fixed on the bottom of right rail column 590, saws the right liquid of section The piston rod of cylinder pressure 580 is fixedly connected with saw segment sync sliding block 550, and the saw right sprocket wheel of section is fixed on saw segment sync sliding block 550 560, the saw section chain saw 540 passes through the horizontal lumbering straight slot on left sliding slot column 510 and right rail column 590 to be wound on saw Duan Zuo On sprocket wheel 530 and the saw right sprocket wheel 560 of section, the transmitter frame 521 is fixed on the side of lumbering slide motor 230, transmitter frame Photoelectric sensing transmitter 522 is fixed on 521, the receiver frame 551 is fixed on the side of saw segment sync sliding block 550, receives Photoelectric sensing receiver 552 is fixed on device frame 551.The saw section utensil 500 is arranged at the top of 130 foreboard of trunk collecting box, The photoelectric sensing transmitter 522 and photoelectric sensing receiver 552 and saw section chain saw 540 synchronize move up and down.

2nd, application method：

（One）Clamping and positioning

When initial, hold-fast body 300 is in horizontal position as shown in figs. 16-17, driver's driving operation locomotive 100 to tree Wooden front suitable position controls and holds 340 both ends piston rod of hydraulic cylinder tightly simultaneously to contract, drives right folded arm bar 310 and left armful Armed lever 330 is drawn close along the holding sliding slot 352 on linkage bull stick 350 to centre, as shown in fig. 6, in the pulling force of both ends piston rod Under effect, trunk 900 is clamped in centre by the V shaped slab 311 on right folded arm bar 310 and left folded arm bar 330.

（Two）Lumbering operation

After right folded arm bar 310 and left folded arm bar 330 clamp trees, the lumbering left hydraulic cylinder 210 in crotch 280 is supported The forward movement synchronous with lumbering right piston bar 271 of lumbering left piston bar 211 is respectively driven with right hydraulic cylinder 270 of lumbering, drive is cut down Wooden slide motor 230 is moved forward with lumbering synchronous slider 260 along the horizontal lumbering sliding slot 285 on support crotch 280 is synchronous, Slide motor 230 of lumbering simultaneously starts the left sprocket wheel 220 of driving lumbering and rotates, and timber cutting chain saw 240 is driven to run, timber cutting chain saw 240 It is pushed forward, trunk 900 is sawed-off from bottom.

（Three）Rotate trunk

As shown in fig. 7, trunk 900 pulls 370 edge of overturning sliding block by the piston rod after sawed-off, overturn on hydraulic cylinder 380 The overturning sliding slot 121 on branches and leaves collecting box 120 slides backward, then pulls linkage bull stick 350 around bull stick by drive link 360 Hole seat 111 rotates clockwise, and right folded arm bar 310 and left folded arm bar 330 clamp trunk 900, and with linkage bull stick 350 jointly to An angle of 90 degrees degree is rotated afterwards, puts 900 level of trunk, and Fig. 8 is the state that 900 level of trunk is put, and then holds hydraulic cylinder 340 tightly Right folded arm bar 310 and left folded arm bar 330 is pushed to slide in and out, is released trunk 900, while falls and drives guide wheel 601 first On the second driving guide wheel 602, trunk 900 is limited between the slope bar 123 of 120 both sides of branches and leaves collecting box, prevents from setting Dry 900 shaking is excessive.

（Four）Trunk linear measure longimetry

900 level of trunk, which is fallen, to be driven in the first driving guide wheel 601 and second on guide wheel 602, and range sensor 604 starts, Preferably by ultrasonic distance measuring module, principle is range sensor 604 used：Ultrasonic transmitter is to 900 direction of trunk Emit ultrasonic wave, start timing while emission time, 900 top of trunk is encountered when ultrasonic wave is propagated in air just at once It returning, ultrasonic receiver receives back wave and just stops timing immediately, and the aerial spread speed of ultrasonic wave is v, and according to The time difference t for measuring transmitting and receiving echo of timer record, it is possible to calculate launch point to the distance on 900 top of trunk S1, i.e. S1=vt/2, and since timber cutting chain saw 240 is constant with respect to the height on ground, different trees are homogeneous by sawed-off height Together, thus after trunk 900 is rotated by 90 ° trunk 900 by the distance L of sawed-off position and launch point be definite value, it is possible thereby to To trunk 900 by length S2=L-S1 after sawed-off.

（Five）Trimming leaf

First driving guide wheel 601, second drives guide wheel 602 and third driving guide wheel 603 to rotate clockwise simultaneously, is rubbing Power effect is lower to drive trunk 900 to move backward, when trunk 900 is by beta pruning instrument 400, beta pruning left hydraulic cylinder 420 and beta pruning Right hydraulic cylinder 440 pushes left beta pruning blade 410 and right beta pruning blade 430 to be drawn close to centre simultaneously, and trunk 900 continues to move back It is dynamic, it can be cut off when branches and leaves pass through left beta pruning blade 410 and right beta pruning blade 430 by blade, and fall into branches and leaves collecting box 120 In.

（Six）Trunk saws section

When initial, saw section chain saw 540 is located at the bottom of left sliding slot column 510 and right rail column 590, and trunk 900 continues It moves backward, and passes through between left sliding slot column 510 and right rail column 590, guide wheel group is driven to stop operating at this time, saw Duan Zuo Hydraulic cylinder 570 and the saw right hydraulic cylinder 580 of section push saw section slide motor 520 and saw segment sync sliding block 550 along vertical saw respectively Section sliding slot 511 synchronizes upward sliding, while saws section slide motor 520 and start that the saw left sprocket wheel 530 of section is driven to rotate, and drives saw section chain 540 operation of saw, saw section chain saw 540 is pushed upwards, and trunk 900 is sawed-off from the bottom up, and falling into trunk by sawed-off part receives In header 130, guide wheel group is then driven to continue that trunk 900 is driven to stop operating after moving backward a distance, saws the left hydraulic pressure of section Cylinder 570 and the saw right hydraulic cylinder 580 of section pull saw section slide motor 520 and saw segment sync sliding block 550 to be slided along vertical saw section respectively Slot 511 synchronizes slide downward, and saw section chain saw 540 is moved downward with saw section slide motor 520 and saw segment sync sliding block 550, will be set Dry 900 is sawed-off from top to bottom, this motion process of repetition, which makes chain saw pump, to be cut into pieces trunk 900, and All collect in trunk collecting box 130.

（Seven）Diameter measurement

The principle of correlation photoelectric sensor is：Transmitting terminal emits feux rouges or infrared, and receiving terminal receives, and has object process, Light is cut off, just output signal.In section utensil 500 is sawed, photoelectric sensing transmitter 522 is fixed on saw by transmitter frame 521 On section slide motor 520, photoelectric sensing receiver 552 is fixed on by receiver frame 551 on saw segment sync sliding block 550, saws section During chain saw 540 moves up and down photoelectric sensing transmitter 522 and photoelectric sensing receiver 552 can it is synchronous therewith on move down Dynamic, when the signal that photoelectric sensing transmitter 522 emits is blocked by trunk 900, signal output is sent out by timer record signal The time T for changing, piston rod at the uniform velocity push saw section slide motor 520 and saw segment sync sliding block 550 to slide up and down, movement speed V is denoted as, then can measure trunk 900 by the diameter D=VT at sawed-off position.

3rd, the above-mentioned substantive distinguishing features of the utility model directly bring following progress effect：

The left beta pruning blade 410 and the right side are controlled using beta pruning left hydraulic cylinder 420 and the right hydraulic cylinder 440 of beta pruning respectively It is opposite between beta pruning blade 430 to close up rotation or separate rotation relatively, convenient for remote control operation；On branches and leaves collecting box 120 Automatic beta pruning instrument 400 is set, unwanted branches and leaves are cleaned out, great convenience is brought to the processing in 900 later stage of trunk.

Claims (1)

1. a kind of beta pruning instrument felled for forestry, including operation locomotive（100）With beta pruning instrument（400）, operation locomotive （100）It is equipped with driver's cabin successively from front to back（110）, branches and leaves collecting box（120）With trunk collecting box（130）, the working rig Vehicle（100）On be additionally provided with lumbering device（200）, hold-fast body（300）, saw section utensil（500）With driving guide wheel group, the beta pruning Instrument（400）It is arranged on branches and leaves collecting box（120）At the top of back plate, it is characterized in that：

The beta pruning instrument（400）Including beta pruning bearing（404）, left beta pruning blade（410）, beta pruning left hydraulic cylinder（420）, the right side cuts Branch blade（430）With the right hydraulic cylinder of beta pruning（440）, beta pruning bearing（404）It is above symmetrical to be respectively arranged with blade hole seat（125） With hydraulic press hole seat（126）；Beta pruning left hydraulic cylinder（420）Undersetting end and the right hydraulic cylinder of beta pruning（440）Undersetting end point It is not rotatably connected to branches and leaves collecting box（120）Two hydraulic press hole seats of both sides（126）On, the right beta pruning blade（430） With left beta pruning blade（410）Symmetrical configuration, left beta pruning blade（410）With right beta pruning blade（430）It is rotatably connected to two respectively A blade hole seat（125）On, beta pruning left hydraulic cylinder（420）Piston rod upper end and left beta pruning blade（410）It is outer hinged Point can rotation be hinged, the right hydraulic cylinder of beta pruning（440）Piston rod upper end and right beta pruning blade（430）Outer coercive mechanism can rotation hinge It connects；Beta pruning left hydraulic cylinder（420）With the right hydraulic cylinder of beta pruning（440）The left beta pruning blade is controlled respectively（410）It is cut with the right side Branch blade（430）Between opposite close up rotation or separate rotation relatively.