SI23104A - Hydraulic aggregate of forest winch with hydraulic motor added - Google Patents
Hydraulic aggregate of forest winch with hydraulic motor added Download PDFInfo
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- SI23104A SI23104A SI200900189A SI200900189A SI23104A SI 23104 A SI23104 A SI 23104A SI 200900189 A SI200900189 A SI 200900189A SI 200900189 A SI200900189 A SI 200900189A SI 23104 A SI23104 A SI 23104A
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Hidravlični agregat gozdarskega vitla z dodanim hidravličnim motorjemForestry winch hydraulic unit with hydraulic motor added
Predmet izuma je hidravlični agregat gozdarskega vitla, ki poleg aktiviranja in deaktiviranja sklopke in zavore navij alnega bobna, aktivira in deaktivira pogonsko napravo za odvijanje vlečne vrvi z navij alnega bobna pri izvedbi s hidravličnim motorjem.The subject of the invention is a hydraulic aggregate of a forestry winch, which, in addition to activating and deactivating the clutch and brake of the winding drum, activates and deactivates the drive device for unrolling the tow rope from the winding drum when designed with a hydraulic motor.
Navijalna naprava gozdarskega vitla z enim ali dvema bobnoma ima le ta na gredi ali osi s pogonom na eno ali vsako stran pogona nameščen boben, ki je predviden za navijanje vlečne vrvi. Boben je na gredi ali osi prosto vrtljiv in ima na bočni strani sklopko in zavoro. Navijalna naprava gozdarskega vitla mora imeti usklajeno delovanje sklopke za vklop in izklop vrtenja bobna in delovanje zavore za prosto vrtenje bobna, za pripravljeno samodejno proženje zaviranja kot popuščanje zaviranja bobna pod polno obremenitvijo vrvi.The winding device of a forestry winch with one or two drums only has a drum on one shaft or axle driven to one or each side of the drive intended to wind the tow rope. The drum is freely rotatable on the shaft or axle and has a clutch and brake on the side. The winch winding device must have a coordinated clutch operation to turn the drum rotation on and off and the brake to free rotate the brake, in order to have the automatic brake start actuated as the drum brake is released under full rope loading.
Pri gozdarskih vitlih s pogonsko napravo za odvijanje vlečne vrvi z navijalnega bobna s hidravličnim motorjem se ta aktivira pri aktiviranju zavore in se deaktivira pri deaktiviranju zavore.For forestry winches with a propulsion device for unrolling a tow rope from a winding drum with a hydraulic motor, this is activated when the brake is applied and deactivated when the brake is deactivated.
Gozdarskemu vitlu je največkrat prilagojen hidravlični agregat s traktorskim pogonom gnano črpalko, ki preko ustreznih ventilov potiska hidravlični medij potrebnega nadtlaka ah v cilinder za krmiljenje zavore ah v cilinder za krmiljenje sklopke, višek hidravličnega medija vrača nazaj v rezervoar.The winch is most often adapted to a tractor-driven hydraulic unit driven by a pump that pushes the hydraulic medium of the required overpressure through the corresponding valves into the brake control cylinder into the cylinder to control the clutch, returning the excess hydraulic medium back to the tank.
K takemu hidravličnemu agregatu je prirejen na hidravlični vod, ki za krmilnim ventilom vodi k cilindru za krmiljenje zavore, še vzporedno vod na hidravlični motor.Such a hydraulic power unit is adapted to a hydraulic line leading behind the control valve to the brake control cylinder, in parallel to the hydraulic motor line.
Pri neposredni povezavi hidravličnega motorja na vzporedni vod s cilindrom za zavoro ni bilo problema, dokler ni bila sprožena avtomatsko delujoča zavora. Za odklop izklop zavore mora zavorni cilinder premagati silo odmika zavore in vzmeti. Upornost vzporedno vezanega hidravličnega motorja je bistveno manjša kot zavornega cilindra v primeru izklopa delovanja zavore. Povečevanje upora na strani hidravličnega motorja ni primerna rešitev.There was no problem directly connecting the hydraulic motor to the parallel line with the brake cylinder until the automatic brake was actuated. To disconnect the brake off, the brake cylinder must overcome the force of the brake and the spring. The resistance of a parallel coupled hydraulic motor is significantly less than that of a brake cylinder in the event of a brake failure. Increasing the resistance on the side of the hydraulic motor is not a suitable solution.
Pri doslej poznani rešitvi hidravličnega agregata gozdarskega vitla s hidravličnim motorjem za vrtenje pogonske naprave za odvijanje vlečne vrvi z navijalnega bobna opisane v SI P 200800313, hidravlični agregat obsega črpalko za črpanje hidravličnega medija podIn the prior art solution of a forestry winch hydraulic unit with a hydraulic motor for rotating a propulsion device for unrolling a tow rope from a winding drum described in SI P 200800313, the hydraulic unit comprises a pump for pumping hydraulic medium under
tlakom, plinski akumulator in rezervoar, hidravlični blok s krmilnim ventilom za krmiljenje cilindra sklopke in krmiljenje vzporedno povezanega cilindra zavore in hidravličnega motorja. Pred cilinder zavore kakor pred hidravlični motor sta dodana elektromagnetna ventila. Ta sta krmiljena tako, da po sprožitvi krmilnega ventila hidravličnega bloka za krmiljenje vzporedno povezanega cilindra zavore in hidravličnega motorja najprej odpre elektromagnetni ventil pred cilindrom zavore in po časovnem zamiku elektromagnetni ventil pred hidravličnim motorjem.pressure, gas accumulator and tank, hydraulic block with control valve for controlling the clutch cylinder and controlling the parallel connected brake cylinder and hydraulic motor. Solenoid valves are added to the brake cylinder as well as to the hydraulic motor. These are controlled by first opening the solenoid valve in front of the brake cylinder and, after a time delay, the solenoid valve in front of the hydraulic motor after actuating the control valve of the hydraulic block to control the parallel brake cylinder and the hydraulic motor.
Pomanjkljivost takšnega hidravličnega agregata gozdarskega vitla s hidravličnim motorjem za vrtenje pogonske naprave za odvijanje vlečne vrvi z navijalnega bobna je v ceni.The disadvantage of such a hydraulic unit of a forestry winch with a hydraulic motor for rotating the propulsion device for unwinding the tow rope from the winding drum is in the price.
Pri reševanju tega problema je hidravlični agregat z dodanim hidravličnim motorjem po izumu zastavljen tako, da sta cilinder, z vstopnim in izstopnim priključkom, zavore in hidravlični motor vezana zaporedno in sicer tako, da hidravlični medij pod tlakom zagotovi premik cilindra zavore, da sila premaga silo odmika zavore in vzmeti in nato medij izstopa iz cilindra po vodu do hidravličnega motorja, ki vrti pogonsko napravo za odvijanje vlečne vrvi z navijalnega bobna.To solve this problem, the hydraulic unit with the added hydraulic motor according to the invention is arranged so that the cylinder, with the inlet and outlet connections, the brakes and the hydraulic motor are connected in series so that the hydraulic medium under pressure ensures the displacement of the brake cylinder so that the force overcomes the force. moves the brakes and springs and then the medium exits the cylinder through the conduit to the hydraulic motor, which rotates the drive device to unwind the tow rope from the winding drum.
Izum bo opisan na izvedbenem primeru in sliki, ki prikazuje sl. 1 Shema hidravličnega agregata gozdarskega vitla z dodanim hidravličnim motorjem pri gozdarskem vitluThe invention will be described by way of example and figure, showing FIG. 1 Schematic diagram of a forestry winch hydraulic unit with hydraulic motor attached to a forestry winch
Na sl.l je prikazana shema hidravličnega agregata 1, ki obsega črpalko 5, hidravlični blok 2 s krmilnim ventilom 21 in varnostnim ventilom 23, cilinder 3 zavore, cilinder 4 sklopke in hidravlični motor 8 za vrtenje pogonske naprave za odvijanje vlečne vrvi z navijalnega bobna . V sklopu hidravličnega agregata je tudi plinski akumulator 7 in rezervoar 6.FIG. 1 is a diagram of a hydraulic unit 1 comprising a pump 5, a hydraulic block 2 with a control valve 21 and a safety valve 23, a brake cylinder 3, a clutch cylinder 4, and a hydraulic motor 8 for rotating a propulsion device to draw a rope from a winding drum. . The hydraulic unit also includes a gas battery 7 and a tank 6.
Hidravlični motor 8 je povezan s cevjo na izstopni priključek 12 cilindra 3 zavore in vstopni priključek 11 cilindra 3 zavore s cevjo na krmilni ventil 21.The hydraulic motor 8 is connected to a hose to the outlet port 12 of the brake cylinder 3 and the inlet port 11 of the brake cylinder 3 to the control valve 21.
Črpalka 5 gnana s traktorskim pogonom črpa hidravlični medij pod tlakom v smeri hidravličnega bloka 2 do krmilnega ventila 21. Glede na stanje vklopa krmilnega ventila 21, lahko hidravlični medij vstopa v cilinder 3 za izklop zavore in pogon hidravličnega motorja 8 ali vstopa v cilinder 4 za vklop sklopke.Tractor-driven pump 5 pumps the pressurized hydraulic medium in the direction of hydraulic block 2 to the control valve 21. Depending on the state of activation of the control valve 21, the hydraulic medium may enter the cylinder 3 to brake off and drive the hydraulic motor 8 or enter cylinder 4 for clutch engaged.
Sprožen električni signal vklopi krmilni ventil 21 za pretok hidravličnega medija pod tlakom k cilindru 3 za izklop zavore. Hod batnice cilindra 3 opravi izklop zavore in v doseženem hodu odpre pretok hidravličnega medija pod tlakom skozi izstopni priključek 12 do hidravličnega motorja 8. V tem stanju je poln pretok hidravličnega medija pod tlakom skozi hidravlični motor 8.The triggered electrical signal activates the pressure control valve 21 for the flow of the hydraulic fluid under pressure to the brake off cylinder 3. The stroke of the piston rod 3 of the cylinder switches off the brake and, in the achieved stroke, opens the flow of the pressurized hydraulic medium through the outlet port 12 to the hydraulic motor 8. In this state, the full flow of the pressurized hydraulic medium through the hydraulic motor 8 is complete.
Po izklopu električnega signala pride elektromagnetni ventil 21 v nevtralno stanje, vzmet batnico cilindra zavore 3 zaradi padca tlaka pomakne preko izstopnega priključka 12 in po vzpostavitvi ravnotežja s tlakom hidravličnega medija ohrani izklop zavore. Hidravlični motor 8 miruje.After switching off the electrical signal, solenoid valve 21 is in neutral, the spring of the brake cylinder piston 3 moves through the outlet port 12 due to a pressure drop and, after equilibration with the pressure of the hydraulic medium, maintains the brake off. Hydraulic motor 8 is stationary.
Sprožen električni signal vklopi krmilni ventil 21 za pretok hidravličnega medija pod tlakom k cilindru 4 za vklop sklopke , hkrati odpre odtok hidravličnega medija iz cilindra 3 zavore. Vzmet batnico cilindra 3 zavore zaradi padca tlaka hidravličnega medija pomakne v izhodiščni položaj, to je položaj, ki omogoča samodejni vklop zavore pri spremembi smeri vrtenja.The triggered electrical signal activates the control valve 21 for the flow of hydraulic fluid under pressure to the clutch 4 to engage the clutch, while opening the drainage of the hydraulic medium from the brake cylinder 3. The spring of the brake cylinder 3 of the brake moves the hydraulic medium to the starting position due to the pressure drop of the hydraulic medium, which is the position which enables the brake to be automatically switched on when the direction of rotation is changed.
Izstopajoče olje odteka v rezervoar 6.The leaking oil drains into the tank 6.
V nevtralnem stanju elektromagnetni ventil 21 ne prepušča hidravličnega medija in le ta od črpalke 5 odteka skozi varnostni ventil 23 in iz hidravličnega bloka 2 v rezervoar 6.In the neutral state, the solenoid valve 21 does not leak the hydraulic medium and flows from the pump 5 through the relief valve 23 and from the hydraulic block 2 into the reservoir 6.
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Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SI200900189A SI23104A (en) | 2009-07-10 | 2009-07-10 | Hydraulic aggregate of forest winch with hydraulic motor added |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SI200900189A SI23104A (en) | 2009-07-10 | 2009-07-10 | Hydraulic aggregate of forest winch with hydraulic motor added |
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| SI23104A true SI23104A (en) | 2011-01-31 |
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| SI200900189A SI23104A (en) | 2009-07-10 | 2009-07-10 | Hydraulic aggregate of forest winch with hydraulic motor added |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3067308A1 (en) | 2015-03-13 | 2016-09-14 | Pisek - Vitli Krpan, d.o.o. | A hydraulic system with additional protection of operation of clutch and drum brake hydraulic circuit in a forestry winch |
| CN106744434A (en) * | 2016-11-22 | 2017-05-31 | 中船华南船舶机械有限公司 | Overload crane protection device |
-
2009
- 2009-07-10 SI SI200900189A patent/SI23104A/en not_active IP Right Cessation
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3067308A1 (en) | 2015-03-13 | 2016-09-14 | Pisek - Vitli Krpan, d.o.o. | A hydraulic system with additional protection of operation of clutch and drum brake hydraulic circuit in a forestry winch |
| CN106744434A (en) * | 2016-11-22 | 2017-05-31 | 中船华南船舶机械有限公司 | Overload crane protection device |
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| OO00 | Grant of patent |
Effective date: 20110209 |
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| KO00 | Lapse of patent |
Effective date: 20191002 |