SI23429A

SI23429A - Hydraulic module drive of a forestry winch

Info

Publication number: SI23429A
Application number: SI201000212A
Authority: SI
Inventors: Pintar Drago
Original assignee: Uniforest D.O.O.
Priority date: 2010-07-13
Filing date: 2010-07-13
Publication date: 2012-01-31

Abstract

The aim of the invention is to provide a hydraulic module drive of a forestry winch by a winding drum (3) located inside the enclosure (2) of the forestry winch (1) up to which inside the enclosure (2) a transmission of the torque from the sprocket wheel (12) of the intake Cardan shaft (8) via a chain transmission to the chain gearing (6) via a chain transmission to the sprocket wheel (7) of the winding drum (3) is implemented in such a way that the intake shaft (8) with the sprocket wheel (12) is held inside the enclosure (10) of the multiplicator (9) and that the attached hydraulic module (5) is held by the toothed shaft (15) of the multiplicator (9).

Description

Pogon hidravličnega modula gozdarskega vitlaDrive of hydraulic module of forestry winch

Predmet prijave je gozdarski vitel, prirejen za vgradnjo na traktor ali podoben vlečen stroj za talno vleko lesa iz gozda do nakladalnega mesta.The subject of the application is a forestry winch adapted for mounting on a tractor or similar towed machine for the floor hauling of wood from the forest to the loading bay.

Rešitev je temelji na problemu zanesljive montaže hidravličnega modula, ki zajema hidravlično črpalko, elektromagnetni ventil, povratni ventil, vezne elemente, .. posredno na vstopno kardansko gred, v pogojih omejitve prostora nameščenih verižnih pogonov od • · · · · · • ·« vstopne kardanske gredi, verižne povezave na verižni reduktor in verižne povezave od verižnega reduktorja na verižnik navijalnega bobna.The solution is based on the problem of reliable mounting of the hydraulic module, which includes the hydraulic pump, solenoid valve, check valve, connecting elements, .. indirectly to the inlet PTO shaft, in the conditions of limiting the space of the installed chain drives from • · · · · · · · PTO shafts, chain linkages to the chain reducer and chain links from the chain reducer to the winding drum sprocket.

Pri gozdarskih vitlih, obseženih s stanjem tehnike, je na voljo v okrovu navijalni boben s simetralo vzdolž smeri vožnje traktorja, s katerega odvita vlečna vrv poteka preko zgornje vrvenice do vsakokratnega bremena. Vitel je pri tem pritrjen na traktor ali drug ustrezni vlečni stroj. Potreben vrtilni moment s traktorja je izveden s kardansko gredjo na pogon vitla v okrovu. Poleg vrtilnega momenta za vrtenje navijalnega bobna je potreben vrtilni momenta za hidravlično črpalko, ki poslužuje hidravlične porabnike predvsem hidravlične cilindre za vklop in izklop sklopke in zavore, hidravlične motorje za naprave za izvlek vrvi z bobna.In the case of forestry winches covered by the state of the art, there is provided in the enclosure a winding drum with a symmetry along the direction of travel of the tractor from which the tow rope is pulled over the top rope to the respective load. The winch is then attached to a tractor or other suitable tractor. The required torque from the tractor is driven by a PTO shaft to drive the winch in the housing. In addition to the torque for rotating the winding drum, torque is required for the hydraulic pump, which serves hydraulic consumers, in particular hydraulic cylinders for switching on and off the clutch and brake, hydraulic motors for devices for pulling rope off the drum.

V pričujočem primeru gre za pogon izveden najpogosteje z verigami. Vstopna kardanska gred uležajena v ohišju pritrjenim na okrov z dvema verižnikoma. Eden od verižnikov je z verigo povezan na verižni reduktor in z verigo povezan od verižnega reduktorja na verižnik navijalnega bobna. Ostali verižnik je povezan na verižnik črpalke. Prav pri tej povezavi je nastalo več pomanjkljivosti ker je na črpalko vezano v hidravlični shemi več hidravličnih komponent, to je elektromehanski ventil, povratni ventil, spojni elementi,..Tako je več različnih kombinacij medsebojnih povezav in pritrditev na okrov. Slabosti so zahtevna montaža in demontaža hidravličnih komponent, zanesljivost tesnjenja.In the present case, the drive is usually driven by chains. The universal joint shaft is mounted in a housing secured to the housing with two sprockets. One of the sprockets is connected to the chain reducer by a chain and is connected by a chain from the chain reducer to the winding drum sprocket. The other sprocket is connected to the pump sprocket. There are several disadvantages in this connection because several hydraulic components are connected to the pump in the hydraulic scheme, ie the electromechanical valve, the check valve, the coupling elements. Thus, there are several different combinations of interconnections and mounting on the housing. Disadvantages are demanding installation and disassembly of hydraulic components, reliability of sealing.

V praksi so rešitve, ki želijo izboljšati to stanje. Tako se pojavljajo pogoni hidravličnih črpalk kot multiplikatorji s togim ohišjem in vgrajenimi zobniki. Rešitve so postavljene z odgonom na gredi reduktorja. Slabost je v izgubah, ko najprej z vstopne gredi reducirajo vrtljaje na gred reduktorja, nato pa ponovno multiplicirajo na zahtevano število vrtljajev črpalke. Ta pomanjkljivost ni v tem, da tega ni moč razumeti temveč v tem, da prostorska razporeditev pogona ni naklonjena preprosti rešitvi.In practice, there are solutions that seek to remedy this situation. Hydraulic pump actuators thus appear as multipliers with rigid housing and integrated gears. The solutions are laid out by an offset on the gearbox shaft. The disadvantage is the losses when they first reduce the speed from the inlet shaft to the gearbox shaft and then multiply again to the required pump speed. This disadvantage is not that it cannot be understood, but rather that the spatial arrangement of the drive does not favor a simple solution.

Za izhodišče je v danih prostorskih pogojih oblikovan hidravlični modul, ki zajema hidravlično črpalko, elektromagnetni ventil, povratni ventil, vezne elemente,.., ki so medsebojno montirani in je priključitev hidravličnega modula preko hidravlične črpalke. Po izumu je priključitev hidravličnega modula izvedena na multiplikator z vstopno kardansko gredjo. Togo ohišje multiplikatorja je pritrjeno na okrov gozdarskega vitla. V ohišju je uležajena vstopna kardanska gred. Na vstopni kardanski gredi zunaj ohišja je kardansko ozobje in verižnik za pogon navijalnega bobna, znotraj ohišja na vstopni kardanski gredi je zobnik. Le ta je v oprijemu z vmesnim uležajenim zobnikom na osi in ta z uležajeno zobniško gredjo za pogon hidravličnega modula.As a starting point, a hydraulic module is formed in the given space conditions, comprising a hydraulic pump, a solenoid valve, a check valve, connecting elements, .. which are interconnected and are connected to the hydraulic module via a hydraulic pump. According to the invention, the connection of the hydraulic module is made to a multiplier with an input PTO shaft. The rigid multiplier housing is attached to the enclosure of the forestry winch. There is an input PTO shaft in the housing. On the PTO input shaft outside the housing there is a PTO shaft and a sprocket for the winding drum drive, and inside the housing on the PTO input shaft is a gear. It is in the grip with the intermediate gearing on the axle and the one with a gearing shaft to drive the hydraulic module.

Izum bo opisan na izvedbenem primeru in sliki, ki prikazuje sl.l Gozdarsko vitlo s pogonom sl.2 Multiplikator z vstopno kardansko gredjo in hidravličnim modulom sl.3 Multiplikator z vstopno kardansko gredjo v prerezuThe invention will be described by way of example and figure, showing Fig.l Forestry winch with actuator Fig. 2 Multiplier with input PTO shaft and hydraulic module Fig.3 Multiplier with input PTO shaft in cross section

Na sl.l je prikazano gozdarsko vitlo 1 z nameščenim navijalnim bobnom 3 v okrovu 2 do katerega je v okrovu 2 izvedena prenos vrtilnega momenta od multiplikatorja z vstopno gredjo 4 preko verižne povezave na verižni reduktor 6 in od verižnega reduktorja 6 preko verižne povezave na verižnik 7 navij alnega bobna 3.Fig. 1 shows a forestry winch 1 with a winding drum 3 in the housing 2 to which torque is transmitted from the input shaft multiplier 4 via a chain link to a chain gear 6 and from a chain gear 6 via a chain link to a chain link 7 winding drum 3.

Na sl.2 je prikazan multiplikator z vstopno gredjo 4 z vstopno kardansko gredjo 8, multiplikatorjem 9 in priključenim hidravličnim modulom 5, ki zajema hidravlično črpalko, elektromagnetni ventil, povratni ventil, vezne elemente, ki so predhodno montirani in preverjeno tesnjeni.Figure 2 shows a multiplier with an input shaft 4 with an input PTO shaft 8, a multiplier 9 and a connected hydraulic module 5 comprising a hydraulic pump, solenoid valve, check valve, pre-assembled and sealed connecting elements.

Na sl.3 je prikazan multiplikator 9 s togim ohišjem 10, ki se pritrdi na okrov 2. V ohišju 10 je ulžajena vstopna kardanska gred 8. Na vstopni kardanski gredi 8 zunaj ohišja 10 je kardansko ozobje 11 in verižnik 12 za pogon navijalnega bobna 3, znotraj ohišja na vstopni kardanski gredi 8 je zobnik 13. Le ta je v oprijemu z vmesnim uležajenim zobnikom 14 na osi in ta z uležajeno zobniško gredjo 15 za pogon hidravličnega modula 5.FIG. 3 shows a multiplier 9 with a rigid housing 10 that attaches to the housing 2. In the housing 10, the inlet cardan shaft 8 is depressed. The inlet cardan shaft 8 outside the housing 10 has a cardan gear 11 and a sprocket 12 for driving the winding drum 3. , inside the housing on the input PTO shaft 8, there is a sprocket 13. It is in contact with the intermediate bearing pinion 14 on the axle and the bearing with a pinion shaft 15 to drive the hydraulic module 5.

Po izumu se vstopno kardansko gred 8 poveže s kardanom na izhodno kardansko gred traktorja. Vrtilni moment se prenese iz traktorja na vstopno kardansko gred 8. Z verižnika • · · ·According to the invention, the input PTO shaft 8 is coupled to the PTO output shaft of the tractor. The torque is transferred from the tractor to the PTO shaft 8. From the sprocket • · · ·

na vstopni kardanski gredi 8 se vrtini moment preko verižne povezave na verižni reduktor 6 in od verižnega reduktorja 6 preko verižne povezave na verižnik 7 prenese na navij alni boben 3. Preko multiplikatorja 9 se vrtilni moment prenese na hidravlični modul 5.on the input PTO shaft 8, the torque is transmitted via the chain link to the chain gear 6 and from the chain gear 6 through the chain link to the chain 7 is transferred to the winding drum 3. Through the multiplier 9, the torque is transferred to the hydraulic module 5.

Legenda pozicij:Position legend:

1 1 Gozdarsko vitlo Forestry winch 9 9 Multiplikator Multiplier 2 2 Okrov Shackle 10 10 Ohišje Housing 3 3 Navij alni boben The reel drum 11 11 Kardansko ozobje Cardan gear 4 4 Multiplikator z vstopno kardansko gredjo Multiplier with input PTO shaft 12 12 verižnik sprocket 5 5 Hidravlični modul Hydraulic module 13 13 Zobnik Gear 6 6 Verižni reduktor Chain reducer 14 14 Zobnik Gear 7 7 Verižnik navij alnega bobna Winding drum sprocket 15 15 Zobniška gred Gear shaft 8 8 Vstopna kardanska gred PTO Drive Shaft

Claims

1. Propulsion of the hydraulic module of the winch winch into the housing (2) of the winch winch (1) to the winding drum (3) to which the torque (12) is transmitted from the sprocket (12) of the PTO shaft (8) via a chain link to chain reducer (6) and from chain reducer (6) via chain link to sprocket (7) of winding drum (3), characterized in that the input shaft (8) is mounted with the sprocket (12) in the housing (10) of the multiplier (9) and providing a hydraulic module (5) connected to the bearing gear shaft (15) of the multiplier (9).

Actuator of the forestry winch hydraulic module according to claim 1, characterized in that the hydraulic module (5) comprises a hydraulic pump, solenoid valve, non-return valve, pre-assembled and sealed connection elements.

Actuator of the winch hydraulic module according to claim 1, characterized in that the housing (10) of the multiplier (9) is attached to the housing (2).