CN201282679Y - Multifunctional tree felling machine - Google Patents
Multifunctional tree felling machine Download PDFInfo
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- CN201282679Y CN201282679Y CNU2008201233066U CN200820123306U CN201282679Y CN 201282679 Y CN201282679 Y CN 201282679Y CN U2008201233066 U CNU2008201233066 U CN U2008201233066U CN 200820123306 U CN200820123306 U CN 200820123306U CN 201282679 Y CN201282679 Y CN 201282679Y
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Abstract
The utility model discloses a multifunctional tree felling machine, comprising a power system, a cabin assembly, a manipulator system, a hydraulic system, a felling head combination system, a chassis assembly and a control system, wherein the power system, the cabin assembly, the manipulator system and the hydraulic system are all arranged on the chassis assembly; the output power of the power system drives the wheels on the chassis assembly via a transmission device on the chassis; the front end of the manipulator system is provided with the felling head combination system; the hydraulic system is connected with the manipulator system via pipelines to drive the manipulator system and the felling head combination system on the manipulator system; and the control system is arranged in the cabin system and is connected with each working system via pipelines. The felling machine combines the functions such as felling, lopping, bucking, top cutting, banking, loading and the like, with high working efficiency, high safety, reduced labor strength, and low damage on forest tree and forest land ecosystem.
Description
Technical field
The utility model relates to a kind of felling equipment, relates in particular to the multi-functional forest harvester that a kind of forest plantation or natural woodland operation are used.
Background technology
China is at the initial stage in this century, and a large amount of forest plantation of the same age will become main timber forest.Rely on traditional manually foster and the felling technology can not satisfy the needs of modernized production of forestry, following production of forestry also will be changed to technology is intensive by labour's intensive style, to increase the labour's of unit production efficiency.In addition, fostering of forest plantation also has seasonality, finish weeding, intermediate cutting, prune and answer acute disease pest control and transportation in the season of the best, must raise the efficiency by mechanization, foster operation for the carrying of tending and intermittent cutting of forest material and the training of big-and-middle footpath material, manually can't finish relevant operation high-quality, efficiently, need mechanization equipment to realize operation safely and efficiently.
And existing forest land machinery, big multi-functional more single, can only finish the forest land operation of individual event, as feller, carrying implement etc., can't provide multiple function easily by a kind of equipment, like this in the operation of forest land, the forest land workman will use multiple plant equipment, and not only operating efficiency is not high, and too much equipment has also brought inconvenience for transportation, also more or less forest land ecology is caused damage, destroy, therefore, provide a kind of multi-functional forest land Work machine, can concentrate and finish the operation of multiple forest land, make the forest land workman carry out safety, work efficiently, and minimizing is the main trend of forestry machinery exploitation from now on and application to the ecological damage of forest and forest land.
The utility model content
The utility model embodiment provides a kind of multi-functional forest harvester, integrates lumbering, delimbing, producing material, cuts the tip, banks up, multiple forest land operation function such as entrucking, can carry out efficiently in the forest land, forest logging operation fast.
The purpose of this utility model is achieved through the following technical solutions:
The utility model embodiment provides a kind of multi-functional forest harvester, and this harvester comprises: dynamical system, driver's cabin assembly, mechanical arm system, hydraulic system, felling head combined system, chassis assembly and control system; Wherein, dynamical system, driver's cabin assembly, mechanical arm system and hydraulic system are divided equally cloth and are arranged on the chassis assembly, the wheel that the power output of described dynamical system is provided with on the actuator drives chassis assembly on chassis; Described mechanical arm system front end is provided with the felling head combined system, described hydraulic system connect by pipeline and drive described mechanical arm system and on the felling head combined system, described control system is arranged in the driver's cabin and by pipeline and is connected with each operating system respectively.
Described harvester also comprises: lighting device, be arranged on the driver's cabin assembly, and lighting device is corresponding with described mechanical arm system and the last felling head combined system that is provided with thereof.
Described harvester also comprises: air-conditioning system is arranged in the driver's cabin of driver's cabin assembly.
Described chassis assembly is a full hydraulic drive formula chassis assembly, comprises forward and backward bridge two parts, and two parts are the hydraulic control articulated steering structure that middle radial type connects.
Described forward and backward bridge portion is driven by a preceding hydraulic motor and rear hydraulic motor respectively, or is driven with transmission of power, after distributing by hydraulic moment changeable case and gear reduction box by a hydraulic motor.
The preceding hydraulic motor of bridge portion and described dynamical system are behind transfer gear link variable pump before the described driving, and one tunnel output of variable pump hydraulic oil connects; The rear hydraulic motor of bridge portion is connected with another road output of variable pump hydraulic oil before the described driving.
Described mechanical arm system comprises: hydraulic rotating base for supporting, big arm, forearm, telescopic arm, wherein, described hydraulic rotating base for supporting is arranged on the described chassis assembly, described hydraulic rotating base for supporting one end is connected with described big arm, described forearm is connected the described big arm other end, and the forearm front end is provided with telescopic arm; Be equipped with the hydraulic control device that is used to control manipulator motion on hydraulic rotating base for supporting, big arm, forearm, the telescopic arm.
Described hydraulic rotating base for supporting comprises: angling cylinder, tooth bar, column and gear, and wherein, described angling cylinder is connected with tooth bar, tooth bar and the gears engaged that is arranged on the column, an end of described column is for connecting the link of described big arm.
Described felling head composite set comprises:
Hydraulic pressure rotary actuator, suspension holdfast, hanging oil cylinder, felling head control system and cutting tool assembly; Wherein, described hydraulic pressure rotary actuator is connected with described felling head control system by suspension holdfast, hanging oil cylinder, described cutting tool assembly is arranged on the Control Shaft of felling head control system, and a plurality of sensors that are provided with in the cutting tool assembly are electrically connected with the felling head control system by cable; The felling head control system is connected with described control system in described hydraulic system, the driver's cabin by fluid pressure line and cable respectively.
Described cutting tool assembly comprises:
Leading branch cutter, mainly grasp tool, driven roller, driven roller motor, chain saw combination and chain saw guard shield; Wherein, leading branch cutter, mainly grasp tool, driven roller and chain saw combination and distribute successively and be arranged on the corresponding Control Shaft of felling head control system, the chain saw combined outer is provided with the chain saw guard shield; The corresponding setting with driven roller of driven roller motor is connected with driven roller.
The technical scheme that is provided by above-mentioned the utility model embodiment as can be seen; the utility model embodiment by be provided with by hydraulically powered mechanical arm system with it on the felling head combined system match; and the fit system that utilizes hydraulic control and control automatically; make this harvester realize the collection lumbering; delimbing; producing material; cut the tip; bank up; the multiple function of entrucking is in one; and by the wheel of dynamical system by being provided with on the actuator drives chassis assembly; it is good to make harvester have trafficability characteristic; face of land destructive power is little; little to the forest cover influence, protected the forest land diversity of organism effectively.This harvester unit operation is strong to cutting area landform adaptive capacity, and very suitable forest plantation is efficient, quick, the requirement of high density logging operation.And its production efficiency height, the one man operation saves manpower, has improved timber utilization rate greatly, can provide safety for the workman, and comfortable working environment is little to forest and forest land damage, meets the current situation and the prospect in the artificial forest zone of present China.
Description of drawings
Fig. 1 is the whole general assembly schematic diagram of the harvester of the utility model embodiment;
Fig. 2 is the mechanical arm structural representation of the harvester of the utility model embodiment;
Fig. 3 is the mechanical arm schematic top plan view of the harvester of the utility model embodiment;
Fig. 4 is the felling head combined system structural representation of the harvester of the utility model embodiment;
Fig. 5 is the felling head combined system structure side view of the harvester of the utility model embodiment;
Among Fig. 1: 1. dynamical system; 2. driver's cabin assembly; 3. air-conditioning system; 4. whole-control system; 5. operation illuminator; 6. hydraulic pressure cooling system; 7. mechanical arm system; 8. felling head combined system; 9. full hydraulic drive chassis system; 10. hydraulic pressure and pump group system;
Among Fig. 2: 21. forearms; 22. telescopic arm; 23. big arm; 24. hydraulic rotating base for supporting;
Among Fig. 4, Fig. 5: 31. hydraulic pressure rotary actuators; 32. suspension holdfast; 33. the wooden control system of valve; 34. mainly grasp tool; 35. driven roller; 36. chain saw guard shield; 37. leading branch cutter; 38. hanging oil cylinder; 39. driven roller motor; 310. transportation suspension member; 311. chain saw combination.
Embodiment
The utility model embodiment provides a kind of multi-functional forest harvester, be a kind ofly integrate lumbering, delimbing, producing material, cut the tip, bank up, the multiple function of entrucking is suitable for the operation of multiple forest land, be particularly suitable for the harvester of forest plantation, this harvester specifically comprises: dynamical system, driver's cabin assembly, mechanical arm system, hydraulic system, felling head combined system, chassis assembly and control system; Wherein, dynamical system, driver's cabin assembly, mechanical arm system and hydraulic system are divided equally cloth and are arranged on the chassis assembly, the wheel of power output on the actuator drives chassis assembly on chassis of described dynamical system; Described mechanical arm system front end is provided with the felling head combined system, described hydraulic system by pipeline and described mechanical arm system and on the felling head combined system be connected, the driving device arm system and on felling head combined system work, described control system is arranged in the driver's cabin and by pipeline and is connected with each operating system respectively.
Use this harvester can finish multiple forest land logging operation, have the forest land ecological disruption for a short time, make and fell work safety, advantage that efficient is high.
For ease of understanding, harvester of the present utility model is further elaborated below in conjunction with the drawings and specific embodiments.
Embodiment one
The utility model embodiment provides a kind of and integrates lumbering, delimbing, producing material, cuts the tip, banks up, the forest logger of the multiple function of entrucking, and as shown in Figure 1, this harvester specifically comprises:
Dynamical system, driver's cabin assembly, mechanical arm system, hydraulic system, felling head combined system, chassis assembly and control system; Wherein, dynamical system, driver's cabin assembly, mechanical arm system and hydraulic system are divided equally cloth and are arranged on the chassis assembly, the wheel of power output on the actuator drives chassis assembly on chassis of described dynamical system; Described mechanical arm system front end is provided with the felling head combined system, described hydraulic system by pipeline and described mechanical arm system and on the felling head combined system be connected, the driving device arm system and on felling head combined system work, described control system is arranged in the driver's cabin and by pipeline and is connected with each operating system respectively.
Above-mentioned harvester can also comprise: lighting device and air-conditioning system, described lighting device is arranged on the driver's cabin assembly, lighting device and described mechanical arm system and to go up the felling head combined system that is provided with corresponding are under the darker condition of light, for operation provides corresponding lighting; Described air-conditioning system is arranged in the driver's cabin of driver's cabin assembly, for operating personnel provide comfortable working environment.
In the above-mentioned harvester, described chassis assembly is a full hydraulic drive formula chassis assembly, comprise forward and backward bridge two parts, two parts are the hydraulic control articulated steering structure that middle radial type connects, described forward and backward bridge portion is driven by a preceding hydraulic motor and rear hydraulic motor respectively, or is driven with transmission of power, after distributing by hydraulic moment changeable case and gear reduction box by a hydraulic motor.If during two CD-ROM drive motors, described preceding hydraulic motor and described dynamical system are behind transfer gear link variable pump, and one tunnel output of variable pump hydraulic oil connects; Another road output of described rear hydraulic motor variable pump hydraulic oil connects.
In the above-mentioned harvester, described mechanical arm system comprises: hydraulic rotating base for supporting, big arm, forearm, telescopic arm, wherein, described hydraulic rotating base for supporting is arranged on the described chassis assembly, one end of described hydraulic rotating base for supporting is connected with described big arm, described forearm is connected with the other end of big arm, and telescopic arm is arranged on the front end of forearm; Be equipped with the hydraulic control device that is used to control manipulator motion on hydraulic rotating base for supporting, big arm, forearm, the telescopic arm; Wherein, described hydraulic rotating base for supporting comprises: angling cylinder, tooth bar, column and gear, and wherein, described angling cylinder is connected with tooth bar, tooth bar and the gears engaged that is arranged on the column, an end of described column is for connecting the link of described big arm.
Described felling head composite set comprises: hydraulic pressure rotary actuator, suspension holdfast, hanging oil cylinder, felling head control system and cutting tool assembly; Wherein, described hydraulic pressure rotary actuator is connected with described felling head control system with hanging oil cylinder by suspension holdfast, described cutting tool assembly is arranged on the clutch end of felling head control system, and a plurality of sensors that are provided with in the cutting tool assembly are connected with the felling head control system by cable; The felling head control system is connected with the hydraulic system of described feller, the described control system in the driver's cabin with cable by fluid pressure line respectively; Wherein, described cutting tool assembly comprises: leading branch cutter, mainly grasp tool, driven roller, driven roller motor, chain saw combination and chain saw guard shield; Wherein, leading branch cutter, mainly grasp tool, two driven rollers that are oppositely arranged and chain saw combination and distribute successively and be arranged on the corresponding clutch end of felling head control system; The driven roller motor is arranged on two driven roller back and is connected with them, drives two driven roller work that are oppositely arranged.
In the reality, described multi-functional forest harvester is made up of dynamical system 1, driver's cabin assembly 2, air-conditioning system 3, control system 4, operation illuminator 5, hydraulic pressure cooling system 6, mechanical arm system 7, felling head combined system 8, full hydraulic drive chassis assembly 9, hydraulic pump group system 10 as shown in Figure 1; Wherein, dynamical system 1, driver's cabin assembly 2 are connected with full hydraulic drive chassis assembly 9 rear portions, operation illuminator 5 is connected with driver's cabin assembly 2 with air-conditioning system 3, mechanical arm system 7 and hydraulic pressure cooling system 6 and 9 anterior connections of full hydraulic drive chassis assembly, felling head combined system 8 is connected with mechanical arm system 7 front ends, control system 4 is arranged in driver's cabin and is connected with each operating system by pipeline, and hydraulic pump group system 10 is arranged in the rear portion, chassis and is connected with each operating system by fluid pressure line.
Wherein full hydraulic drive chassis assembly 9, hydraulically powered mechanical arm system 7, felling head combined system 8 and control system 4 are finished the major function of this harvester as four chief components of this harvester.
In the above-mentioned harvester, bridge portion and back bridge portion before the full hydraulic drive chassis assembly is divided into, radial type connected in the middle of two parts adopted, the hydraulic control articulated steering, the front and back bridge respectively adopts a fluid motor-driven (also can adopt a fluid motor-driven, by hydraulic moment changeable case and gear reduction box with transmission of power, distribute to forward and backward bridge), promptly whole chassis adopts the full hydraulic drive mode, by power train, turn to be, braking system and running gear form.Concrete power delivery mode is: the engine as dynamical system connects transfer gear, transfer gear link variable pump, and variable pump hydraulic pressure oil content two-way transmits, and one the tunnel connects the front wheel driving motor, and another road connects the rear drive motor.This employing hydraulic driving mode has changed the chassis layout of traditional engineering machinery, for the very big advantage of travelling in forest road net, the cutting area of road conditions and face of land physical features complexity.Characteristics such as wherein, turning to is the double hydraulic cylinder articulation steering system that adopts engineering machinery commonly used, and the maturation that possesses skills, dependable performance, radius of turn are little.Braking system adopts hydraulic braking, and wet type whole disc braking device all has been installed on each wheel, can realize the braking conversion of the static and job requirements of car load during operation, and manual parking brake also is installed simultaneously.The concrete technical parameter of each parts in the chassis assembly sees attached list 1.
Logging operation mainly is made up of two parts motion: by mechanical arm system felling head is delivered to appointed positions and cut down trees, tow back to the local producing material that is put into appointment with a trees of cuting down, the difficult control of first motion is as long as and second motion designed reasonable mechanical arm system structure and just can be realized simply controlling.
For guaranteeing the controllability of motion, the accuracy and the saving energy, can be according to the needs in practical application forest land, design the rational size of mechanical arm system, and be needs and the above-mentioned difficult point of mentioning that the motion of logging operation is finished in assurance, mechanical arm system 7 structures such as Fig. 2 of actual harvester, shown in Figure 3, specifically by hydraulic rotating base for supporting 24, big arm 23; forearm 21; telescopic arm 22 is formed; provide power by hydraulic system; the motion of control mechanical arm system; its principle is: angling cylinder promotes the gear on the rack drives column; thus drive the rotation of whole mechanical arm system, reach the purpose of felling about mechanical arm system.Moving up and down of the telescopic band motivation tool arm system of master cylinder, seesawing of the telescopic band motivation tool arm system of auxiliary oil cylinder is aided with the effect of telescopic oil cylinder and back push oil cylinder again under different fellings requires, reach control and requirements on transport.The similar mechanical arm of the mechanical arm system of this structure is the same, and is very flexible, can make multiplely bend and stretch, the action of left and right rotation.It has well solved the difficult point in the logging operation of forest land above-mentioned, can cut down trees the place that felling head is delivered to appointment, can be dragged to the place producing material of appointment again by the trees that the handle of simple control is cuted down.
In above-mentioned harvester, felling head combined system 8 is execution work devices of whole harvester, as Fig. 4, shown in Figure 5, it is made of hydraulic pressure rotary actuator 31, suspension holdfast 32, hanging oil cylinder 38, felling head control system 33 and cutting tool assembly, wherein, cutting tool assembly is formed by mainlying grasp tool 34, driven roller 35, leading branch cutter 37, driven roller motor 39, chain saw combination 311, chain saw guard shield 36 and transportation suspension member 310 etc.Felling head combined system 8 is connected with the hydraulic pump group system, banked direction control valves group, motor, the hydraulic cylinder that constitute hydraulic system by fluid pressure line, be connected with the driver's cabin inner controller by cable, adopt CAN-BUS bus, guide's control mode to send job instruction by the pilot control joystick, during operation, a plurality of sensors in the felling head control system 33 pass to industrial computer in the control room in real time with work data, in LCD, show, for driver's monitoring and reference.Under programme-control, the felling head combined system can finish lumbering, fall functions such as wood, delimbing, producing material, finishes big portion lumbering operation operation under the entire mechanization operation.Its basic working procedure is: have mechanical arm to drive felling head to goal tree ground bottommost, mainly grasp tool and driven roller is embraced log, the sawed-off log of chain saw work of chain saw combination fell log when taking assigned address at mechanical arm, mainlying grasp tool unclamps, drive log by driven roller and in the felling head combined system, move, treat the distance of the regulation of log motion, then stop motion, chain saw blocks log and carries out producing material, the log motion while, leading branch cutter is destroyed branch, until finally finishing the operation of producing material bunch.
In sum, multi-functional forest harvester among the utility model embodiment is to have realized the automation of forestry logging operation, mechanization, the high-performance Forestry Engineering machinery of intensification, adopt this harvester to finish most of operation that forest is felled by the unit operation, as lumbering, delimbing, producing material, cut the tip, bank up, entrucking etc., only need an operator to carry out operation in the operation by advanced person's automation control system control equipment, saved manpower, alleviated labour intensity, improved personnel's job safety coefficient, through measuring and calculating, the unit efficiency of operation is more than 200 times of manual work, has reduced the cost of logging operation effectively.
The above; it only is the preferable embodiment of the utility model; but protection domain of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; the variation that can expect easily or replacement all should be encompassed within the protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain of claim.
Claims (10)
1, a kind of multi-functional forest harvester is characterized in that this harvester comprises: dynamical system, driver's cabin assembly, mechanical arm system, hydraulic system, felling head combined system, chassis assembly and control system; Wherein, dynamical system, driver's cabin assembly, mechanical arm system and hydraulic system are divided equally cloth and are arranged on the chassis assembly, the wheel that the power output of described dynamical system is provided with on the actuator drives chassis assembly on chassis; Described mechanical arm system front end is provided with the felling head combined system, described hydraulic system connect by pipeline and drive described mechanical arm system and on the felling head combined system, described control system is arranged in the driver's cabin and by pipeline and is connected with each operating system respectively.
2, harvester according to claim 1 is characterized in that, described harvester also comprises: lighting device, be arranged on the driver's cabin assembly, and lighting device is corresponding with described mechanical arm system and the last felling head combined system that is provided with thereof.
3, harvester according to claim 1 is characterized in that, described harvester also comprises: air-conditioning system is arranged in the driver's cabin of driver's cabin assembly.
4, harvester according to claim 1 is characterized in that, described chassis assembly is a full hydraulic drive formula chassis assembly, comprises forward and backward bridge two parts, and two parts are the hydraulic control articulated steering structure that middle radial type connects.
5, harvester according to claim 4, it is characterized in that, described forward and backward bridge portion is driven by a preceding hydraulic motor and rear hydraulic motor respectively, or is driven with transmission of power, after distributing by hydraulic moment changeable case and gear reduction box by a hydraulic motor.
6, harvester according to claim 5 is characterized in that, the preceding hydraulic motor of bridge portion and described dynamical system are behind transfer gear link variable pump before the described driving, and one tunnel output of variable pump hydraulic oil connects; The rear hydraulic motor of bridge portion is connected with another road output of variable pump hydraulic oil before the described driving.
7, harvester according to claim 1, it is characterized in that, described mechanical arm system comprises: hydraulic rotating base for supporting, big arm, forearm, telescopic arm, wherein, described hydraulic rotating base for supporting is arranged on the described chassis assembly, described hydraulic rotating base for supporting one end is connected with described big arm, and described forearm is connected the described big arm other end, and the forearm front end is provided with telescopic arm; Be equipped with the hydraulic control device that is used to control manipulator motion on hydraulic rotating base for supporting, big arm, forearm, the telescopic arm.
8, harvester according to claim 1, it is characterized in that, described hydraulic rotating base for supporting comprises: angling cylinder, tooth bar, column and gear, wherein, described angling cylinder is connected with tooth bar, tooth bar and the gears engaged that is arranged on the column, an end of described column is for connecting the link of described big arm.
9, harvester according to claim 1 is characterized in that, described felling head composite set comprises:
Hydraulic pressure rotary actuator, suspension holdfast, hanging oil cylinder, felling head control system and cutting tool assembly; Wherein, described hydraulic pressure rotary actuator is connected with described felling head control system by suspension holdfast, hanging oil cylinder, described cutting tool assembly is arranged on the Control Shaft of felling head control system, and a plurality of sensors that are provided with in the cutting tool assembly are electrically connected with the felling head control system by cable; The felling head control system is connected with described control system in described hydraulic system, the driver's cabin by fluid pressure line and cable respectively.
10, harvester according to claim 1 is characterized in that, described cutting tool assembly comprises:
Leading branch cutter, mainly grasp tool, driven roller, driven roller motor, chain saw combination and chain saw guard shield; Wherein, leading branch cutter, mainly grasp tool, driven roller and chain saw combination and distribute successively and be arranged on the corresponding Control Shaft of felling head control system, the chain saw combined outer is provided with the chain saw guard shield; The corresponding setting with driven roller of driven roller motor is connected with driven roller.
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| CNU2008201233066U CN201282679Y (en) | 2008-10-24 | 2008-10-24 | Multifunctional tree felling machine |
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| CNU2008201233066U CN201282679Y (en) | 2008-10-24 | 2008-10-24 | Multifunctional tree felling machine |
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| CN102047830B (en) * | 2009-11-09 | 2012-07-11 | 中国农业机械化科学研究院 | Energy forest harvesting platform |
| CN102845273A (en) * | 2012-09-12 | 2013-01-02 | 广西大学 | Tree felling and cutting integrated machine |
| CN103231361A (en) * | 2013-03-22 | 2013-08-07 | 北京林业大学 | Multifunctional operation mechanical arm of forest cutting and tending machine |
| CN103448798A (en) * | 2013-03-22 | 2013-12-18 | 北京林业大学 | Hydraulic-support articulated steering chassis device |
| CN103477944A (en) * | 2013-09-09 | 2014-01-01 | 长兴泗安科林植保专业合作社 | Multifunctional lumbering vehicle |
| CN103552452A (en) * | 2013-11-08 | 2014-02-05 | 桂林福冈新材料有限公司 | Multifunctional united felling machine |
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| CN104317209A (en) * | 2014-11-03 | 2015-01-28 | 北京林业大学 | Multifunctional intelligent felling head control system |
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| CN104838973A (en) * | 2015-05-21 | 2015-08-19 | 北京林业大学 | Forest cutting griping-saw operation device |
| CN105246323A (en) * | 2013-05-31 | 2016-01-13 | 蓬塞有限公司 | Method and arrangement in forest work unit |
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| WO2019019547A1 (en) * | 2017-07-28 | 2019-01-31 | 江苏省丰垒果蔬特种机械研制有限公司 | Fully automatic tree-felling integrated machine |
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| CN102047830B (en) * | 2009-11-09 | 2012-07-11 | 中国农业机械化科学研究院 | Energy forest harvesting platform |
| CN102845273A (en) * | 2012-09-12 | 2013-01-02 | 广西大学 | Tree felling and cutting integrated machine |
| CN102845273B (en) * | 2012-09-12 | 2014-06-11 | 广西大学 | Tree felling and cutting integrated machine |
| CN103231361A (en) * | 2013-03-22 | 2013-08-07 | 北京林业大学 | Multifunctional operation mechanical arm of forest cutting and tending machine |
| CN103448798A (en) * | 2013-03-22 | 2013-12-18 | 北京林业大学 | Hydraulic-support articulated steering chassis device |
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| CN105246323A (en) * | 2013-05-31 | 2016-01-13 | 蓬塞有限公司 | Method and arrangement in forest work unit |
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