• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to a multi-process machine comprising a chassis machine, a boom plant and a harvesting end for folding and processing trees. At least one pressure accumulator (2.1) is located in the system to increase the instantaneous power of said motor (3.2) and the system comprises a separate auxiliary feeder line drawn from a pump (1.1) for the pressure accumulator and the auxiliary feeder line operating valves (2.2 2.3), and an auxiliary operating line (2.5 ) from the pressure accumulator directly to the selected side of the hydraulic motor (3.2) and the auxiliary operating line valves (2.4).
    公开号:FI20175989A1
    申请号:FI20175989
    申请日:2017-11-06
    公开日:2019-05-07
    发明作者:Lauri Ketonen
    申请人:Lauri Ketonen；
    IPC主号:
    专利说明:

    INCREASE CUTTING SPEED IN A CUTTING MACHINE
    There are several base machines for harvesting heads, for example, a lot of used excavators. In many cases, the stability of the chassis machine and the usability of the boom would be sufficient, but the engine power 5 is too low. This results in the need to select an oversized chassis machine.
    As these are large series machines compared to traditional harvester heads, the price of these, for example excavators, is still affordable, even though the platform is oversized. In many cases, as the size of the platform increases, transporting the platform to the site requires an excessively large transport platform. This situation arises when new sites are opened in mountain forests.
    As the felling progresses further, new paths to the slopes will be opened. In this case, the chassis of the harvester may not be too heavy.
    Generally speaking, we can talk about a multifunctional machine that cuts, prunes and cuts trees. In addition, the harvester head forms a loader for handling logs. Also known as a harvester.
    When new sites are opened, the trees are generally variable, with small and large trees. Until now it has been used in small harvester platforms to use the so-called "harvester". stroke harvester. These can temporarily make oversized trees, but in normal forest these heart rate harvesters are slow.
    The object of the invention is to obtain additional speed, especially for a roller or roller driven harvester head. Knowing that the pruning force is very dependent on the speed, and even on the second power, increasing the speed is the simplest way to improve the pruning.
    In practice, an excavator of about 9,000 kg allows a pruning speed of 2.5 m / s. This dimensioning has been established over the years. Because logs of about 25 m in length are quite often made, a suitable rhythm of the feed and cut cycles produces pressure accumulators.
    The additional energy needed to feed the wood is partly obtained during feed braking, and further when the sawing starts, some of the energy can be stored in the battery. However, actual sawing requires all possible energy for the saw motor. But when the saw is finished and the flange returns to the saw housing, the battery can be charged again. Even before the start of a new supply, there are still situations to ensure that the battery can be charged.
    20175989 prh 06 -11- 2017
    In practical work, results have been obtained that, when making 5 m logs in normal operation, the feed rate is about 4.6 m / s. Now comparing without extra oil (speed 2.5 m / s), the kinetic energy increases by ~ 3.4 times. This is especially important when trees have to be pruned. Pruning power has been a clear bottleneck as engine power declines on smaller machines.
    Energy recovery is basically simple. But the recovery of this recovered energy must be done carefully. Several experiments have led to the following arrangement.
    Figure 1 shows a simple hydraulic diagram of the harvester head 3 with the chassis machine 1.
    Pressure accumulators 2.1 are located on top of the base machine. The pressurized oil is applied to the accumulators 2.1 just prior to the chassis assembly 1 or the equivalent valve assembly 1.1, i.e. between the pump 1.2 and the valve assembly 1.1.
    In this way, the pressure level obtained by the batteries 2.1 is as high as possible. Of course, the first actuator is the check valve 2.2, so the charged energy cannot be recovered. Next, there is a valve 2.3 in the line that does not allow flow to the battery when forward feeding or actual sawing is on. When the minimum pressure of the battery 2.1 is ~ 160 bar, the battery will only be charged when the system pressure is higher and when other conditions are met. Based on practical experiments, this valve 2.3 should preferably be so-called. adjustable flow valve. In this way, the charge of the battery 2.1 can be controlled steplessly; Fast refill. Batteries 2.1 can even have only one battery or several batteries. Experiments have shown that a good solution is that there are, for example, 4 batteries 2.1, each with a different precharge pressure. The lowest eg 140 bar, then 150 bar and 160 bar and last 170 bar. The batteries will then be discharged smoothly. The excavator, weighing about 9,000 kg, has a suitable accumulator capacity of about 2.1 liters ± 3 liters.
    From the batteries 2.1, the oil 2.4 is led to the harvester head 3 by means of a valve 2.5. This valve 2.4 is included in the same package 2 with the batteries 2.1. Valve 2.4 may be an open / closed valve (closed without power), need not be adjustable.
    If we feed the oil directly to the harvester head 3 in line 2.6 with the base machine 1, harmful flows to the valve assembly 1.1 of the base machine 1 will occur. For this reason, the oil from the batteries 2.1 is led directly to the harvester head 3 via pipe 2.5. Naturally draining the batteries 2.1 to the tank 1.3
    20175989 prh 06 -11- 2017 is done with the open / close valve 2.6 in the package (open current) to stop operation.
    At the harvester head 3, the pressurized oil from the batteries 2.1 is fed directly through the check valve 3.1 to the forward line B of the feed motors 3.2. That is, oil cannot get from the engine line to the batteries 2.1. In order for the oil to enter the engine line, the own supply valve 3.3 for the harvester head 3 must be on (grid). After the engine 3.2, the auxiliary oil from the battery 2.1 returns through the harvester head 3 via its own control valve 3.3 via the harvester head 3 through its own tank line 2.7 to the tank 1.3. Although this creates an asymmetric flow of the valve 3.3 of the harvester head 3, this is practically not a problem for commercial valves.
    This asymmetric flow, the whole flow, i.e. the additional oil, is controlled by the valve 3.3 of the harvester head 3. This way, all the extra oil is put into use at exactly the right moment. Good control has been achieved in practical tests. In Figure 1, the B line of valve 3.3 is the forward drive.
    In addition, the use of batteries 2.1 poses major security risks. Thus, the additional oil from the batteries 2.1 can only feed the wood forward and the pressurized additional oil is only a risk during the forward feeding in the boom piping 2.5. Furthermore, stray movements can only come forward in the feed direction and even then the feed valve 3.3 of the harvester head 3 must be on.
    When implemented separately, the chassis machine's capability for the system is achieved by providing said pressure accumulator system with substantially direct and discrete feed from the pump to the pressure accumulator. The pressure accumulator unit 2 of the system is thus placed either in the base machine or in the boom.
    The hydraulic connection includes an additional feed line 2.5.
    The harvester head has a separate inlet from the auxiliary drive line directly to the engines. A very simple logic control is required to utilize the battery to perform the functions described above.
    权利要求:
    Claims (9)
    [1]
    The claims
    1. A food processor comprising a base machine, a boom comprising at least one boom, and a felling head for felling and further processing of trees, the harvesting head being:
    5 arranged to be suspended by means of a joint on said boom, said cutting head including a rotator for turning a harvester, a suspension device, an actuator and a frame comprising wood-feeding devices with a hydraulic motor (3.2), and
    The hydraulic system 10 comprises a hydraulic pump (1.1) on a chassis machine, a hydraulic thrust line (2.6) and a return line (2.7) guided from the chassis machine to the harvesting head drive valve (3.3) for at least one said hydraulic motor (3.2) for driving
    A supply line and return lines for the motor (3.2) operated by the 15 operating valves (3.3), and at least one pressure accumulator (2.1) disposed in the system for increasing the instantaneous power of said motor (3.2), characterized in that auxiliary supply line drive valves (2.2 to 2.3), and auxiliary drive line (2.5) from pressure accumulator directly to selected side of hydraulic motor (3.2) and auxiliary drive line valves
    20 (2.4).
    [2]
    Multifunctional machine according to claim 1, characterized in that said pressure accumulator (2.1) is disposed on a chassis machine.
    [3]
    The harvester according to claim 1, characterized in that said pressure accumulator (2.1) is located in the boom.
    25
    [4]
    Multifunctional machine according to one of Claims 1 to 3, characterized in that said pressure accumulators (2.1) are at least two, each arranged at different pre-filling pressures.
    [5]
    The multifunction machine according to any one of claims 1 to 4, characterized in that said auxiliary feed line comprises a non-return valve (2.2) to prevent pressure from escaping towards the pump.
    [6]
    Multifunction machine according to one of Claims 1 to 5, characterized in that
    Said said auxiliary drive line includes a non-return valve (3.1) to prevent pressure from escaping towards the battery.
    [7]
    Multifunction machine according to one of claims 1 to 6, characterized in that said auxiliary drive line is connected to the forward drive side of the hydraulic motor (3.2).
    [8]
    Multifunctional machine according to one of Claims 1 to 7, characterized in that
    [9]
    10 said auxiliary drive line includes a so-called. an adjustable flow valve (2.3) to adjust the pressure level of the battery (2.1).
    类似技术:
    公开号 | 公开日 | 专利标题
    CA2699117C|2015-04-21|Tree harvester head with lubrication system for multiple saws
    NL1037718C2|2011-06-27|HEAD FOR HARVESTING TREES AND VEHICLE EQUIPPED WITH SUCH A HEAD.
    FI119394B|2008-10-31|Method for controlling the power of a forestry machine
    US20150368879A1|2015-12-24|Combined Hydraulic Implement and Propulsion Circuit with Hybrid Energy Capture and Reuse
    FI20175989A1|2019-05-07|Increasing the delimbing speed in a logging machine
    CN106489663A|2017-03-15|A kind of cable logging device and its construction method
    US9750203B2|2017-09-05|Load sense hydraulic pump alignment
    EP3003011B1|2018-05-16|A method and an arrangement in a forest work unit
    US20120261032A1|2012-10-18|Load sense and hydraulic pump management
    FI72851C|1989-01-04|DRIFTSSYSTEM FOER EN VIRKESSKOERDEMASKIN.
    US3874432A|1975-04-01|Tree harvesting apparatus
    EP3404272A1|2018-11-21|A system for increasing the working capacity of a hydraulic cylinder, and a hydraulically-operated grab
    FI127542B|2018-08-31|Hydraulic apparatus for receiving overflow oil of a hydraulic motor and returning it to forced circulation, and working machine provided with a forced circulation driven hydraulic motor
    JP7005302B2|2022-01-21|Wood feeder in forestry harvesters
    CN205098327U|2016-03-23|Bush is from loading and unloading portable equipment
    CA1212972A|1986-10-21|Device at rotator and grapple unit suspended at aboom end
    SU1044501A1|1983-09-30|Foresting machine stake
    RU2235455C2|2004-09-10|Method for working out of cutting area
    FI127334B|2018-04-13|Hydraulic apparatus for receiving and returning the hydraulic motor overflow oil and working pressure-powered hydraulic motor
    KR200376287Y1|2005-03-10|Hydraulic circuit of accumulated pressure type wheel brake device in torpedo ladle car
    FI20205244A1|2021-08-13|Method for controlling a forest machine grapple, a forest machine grapple, and a work machine
    JP3238041B2|2001-12-10|bucket
    CA2831514C|2021-01-05|Control circuit for an apparatus
    SU1090292A1|1984-05-07|Hydraulic drive of gripping and cutting device
    FI123220B|2012-12-31|Method and arrangement in a harvester
    同族专利:
    公开号 | 公开日
    EP3706552B1|2022-01-26|
    US20210195855A1|2021-07-01|
    FI128709B|2020-10-30|
    WO2019086769A1|2019-05-09|
    JP2021501856A|2021-01-21|
    EP3706552A1|2020-09-16|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US3880216A|1971-11-05|1975-04-29|Q M Machine Works Ltd|Method and apparatus for shearing trees|
    WO2009144524A1|2008-05-30|2009-12-03|Deere-Hitachi Specialty Products|A vehicular stored energy processor|
    FI127282B|2013-05-31|2018-03-15|Ponsse Oyj|Forestry machine power supply|
    法律状态:
    2020-10-30| FG| Patent granted|Ref document number: 128709 Country of ref document: FI Kind code of ref document: B |
    优先权:
    申请号 | 申请日 | 专利标题
    FI20175989A|FI128709B|2017-11-06|2017-11-06|Multi-process machine|FI20175989A| FI128709B|2017-11-06|2017-11-06|Multi-process machine|
    PCT/FI2018/050813| WO2019086769A1|2017-11-06|2018-11-06|Hydraulic system for a multi-process machine and a multi-process machine using it|
    EP18827141.5A| EP3706552B1|2017-11-06|2018-11-06|Hydraulic system for a multi-process machine and a multi-process machine using it|
    JP2020524401A| JP2021501856A|2017-11-06|2018-11-06|A hydraulic system for multi-process machines, and multi-process machines that use this hydraulic system|
    US16/756,922| US20210195855A1|2017-11-06|2018-11-06|Hydraulic system for a multi-process machine and a multi-process machine using it|
    [返回顶部]