CN102205931B - Energy-saving hydraulic winch - Google Patents
Energy-saving hydraulic winch Download PDFInfo
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- CN102205931B CN102205931B CN 201110071185 CN201110071185A CN102205931B CN 102205931 B CN102205931 B CN 102205931B CN 201110071185 CN201110071185 CN 201110071185 CN 201110071185 A CN201110071185 A CN 201110071185A CN 102205931 B CN102205931 B CN 102205931B
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Abstract
The invention relates to an energy-saving hydraulic winch. The energy-saving hydraulic winch comprises a hydraulic brake, a planetary reducer, a hydraulic clutch, a hydraulic control system and a cooling system, wherein the cooling cavity of the cooling system comprises an inner cavity which is arranged on the middle part of a piston of a clutch oil cylinder and an outer cavity which enwraps a clutch friction plate; a plurality of liquid guiding holes for communicating the inner cavity and the outer cavity are formed on the circumference of the piston; a liquid supplying system, the inner cavity, the liquid guiding holes and the outer cavity form a circulating system; refrigerating medium flows in the circulating system to cool the clutch friction plate immersed in the outer cavity, take away scraps and other impurities generated by the clutch friction plate and cool the reducer and the brake; and a control loop for controlling a heavy hook to be put down freely is arranged on the control loop of the hydraulic clutch, and the speed control and the braking are performed by employing the clutching friction when a heavy object is put down freely, along with stable control and reliable braking, so that the braking moment of the reducer is greatly reduced, the service life of an inner gear of the reducer is prolonged, and the maintenance cost and the repairing cost are reduced.
Description
Technical field
The present invention relates to a kind of winch of Wound steel rope, especially relate to a kind of energy-saving hydraulic winch.
Background technology
be the hydraulic wireline winch draw bail complicated processing difficulty of solution with power-transfer clutch, the dynamical axis that hydraulic wireline winch exists be subjected to force unbalance, bearing axial pushing force and can't realize the modular problem of clutch components on frame, the inventor has proposed the technology of " transmission last level has the hydraulic wireline winch of power-transfer clutch " (Granted publication CN 101190770 B) by name, show a kind of dynamical axis stress balance, simple in structure, the transmission last level of processing and easy accessibility has the hydraulic wireline winch of power-transfer clutch, it is by HM Hydraulic Motor, hydraulic brake, epicyclic reduction gear, hydraulic clutch, reel and the hydraulic control circuit of controlling its work form, be arranged on the end that the interior hydraulic clutch of reel is in the drive system chain, epicyclic reduction gear is arranged in reel, the right side mouth of its final stage pinion carrier is exactly the castellated shaft that connects multi-plate friction clutch, the right-hand member of castellated shaft is exactly the piston of clutch control oil cylinder, the structure that the pinion carrier of its epicyclic reduction gear and the castellated shaft of power-transfer clutch and piston are integrated.This granted patent has solved the force unbalance that is subjected to that its draw bail of existing hydraulic wireline winch is complicated, process and assemble difficulty and dynamical axis effectively, and frame is is easily worn and torn by the axial force junction, the low short problem in service life that reaches of mechanical efficiency; In long-term production practice and use procedure, find that it still comes with some shortcomings: the gear transmission in 1, the relative friction between clutch-lining, epicyclic reduction gear, the braking maneuver of drg, all can make a large amount of heats, because power-transfer clutch, retarder, drg all are located in reel, space-closed, heat is difficult to spread to the external world, cause the interior temperature rise of reel serious, especially under hot environment, in reel, temperature is higher, too high temperature can cause the power-transfer clutch hydraulic performance decline, affects the smooth operation of winch; 2, the friction of clutch-lining can cause chip, and these detrital deposits can have a strong impact on the performance of power-transfer clutch in reel and Friction Disk Surface; 3, the castellated shaft of power-transfer clutch and final stage pinion carrier spline joint, the other end are enclosed within on oil-guiding shaft, this fixed sturcture, the state that castellated shaft is in suspend, there is the problem of radial location deficiency, easily produce in the running and beat and noise, can cause the parallelism of deciding friction lining and movable friction plate on castellated shaft not enough, thereby affect the performance of clutch; 4, its power-transfer clutch urceolus is fixed on the inwall at reel middle part, reel is fixed on structure on bolster by bearing, makes the vibrations of power-transfer clutch be directly delivered to reel and makes the reel fluctuation of service, also makes structure compact not, and is difficult for assembling and dismounting; 5, the structure of oil-guiding shaft is set, complex structure, installation inconvenience between bolster and castellated shaft.
In addition, winch has the free releasing function, and the free releasing function has two kinds of mode of operations, and the first is not hung the empty hook free releasing of weight, and it two is heavy hook free releasings of hanging weight; Speed in existing heavy hook free releasing process is controlled and braking, adopt and to be arranged on the reel outside, the rack-mounted dedicated brake of casing realizes, this structure has not only strengthened volume, length and the weight of winch, also reel inner planet frame and gear are in rotary state in the free releasing operating mode, thereby increased resistance, this winch can't be realized the function of empty hook free releasing for this reason, and complex structure, cost of manufacture are expensive; Therefore, the inventor has proposed " hydraulic wireline winch that integrated form free releasing speed is controlled " (Granted publication CN 2876042Y) technology by name, by at reel outer setting external contracting drum brake, can control the speed of free releasing, but have complex structure, take the deficiency of reel space outerpace.
Summary of the invention
Main purpose of the present invention is to provide a kind of power-transfer clutch, epicyclic reduction gear heat radiation, energy-saving hydraulic winch that especially clutch-lining is dispelled the heat of can be.
Another purpose of the present invention is to utilize the potential energy of weight and control that speed that the friction drag of hydraulic clutch friction lining in reel carries out the weight free releasing is controlled and the hydraulic wireline winch of braking.
Still a further object of the present invention is to provide and a kind ofly provides a kind of clutch to decide friction lining and movable friction plate to have higher parallelism, the power-transfer clutch performance is better, operation is more stable hydraulic wireline winch.
The hydraulic wireline winch that still a further object of the present invention is to provide a kind of more compact structure, is easier to assemble.
Above-mentioned technical matters of the present invention is mainly solved by following technical proposals: energy-saving hydraulic winch, it comprises frame, reel, HM Hydraulic Motor, hydraulic control system, and is located at hydraulic brake, epicyclic reduction gear and hydraulic clutch in reel; Described hydraulic clutch comprises urceolus, decides friction lining, movable friction plate and the clutch oil cylinder that drives two friction plate clutch, described clutch oil cylinder comprises cylinder body, piston and dish spring, decide friction lining, movable friction plate is crisscross arranged on urceolus, piston, it is characterized in that: also be provided with cooling system, this cooling system comprises cooling chamber and supplies with the liquid-supplying system of circulating cooling medium to cooling chamber; Cooling chamber comprises the inner chamber of being located at the piston middle part, the exocoel that contains clutch friction plate; The circumference of described piston is provided with the delivery hole of several communication with cavity and exocoel, and this delivery hole is positioned on the piston section that movable friction plate is set.Liquid-supplying system, inner chamber, delivery hole, exocoel consist of a circulating system, refrigerant flows in circulating system, can carry out coolingly to the decide friction lining, movable friction plate that is immersed in exocoel, make friction lining be in better operating temperature, guarantee thus the performance of power-transfer clutch; Secondly, the cooling media that flows can be taken away the impurity such as chip that clutch friction plate produces, and the impurity that adheres on friction lining is cleaned, and friction face is maintained in the clean condition; Again, the cooling media in exocoel can to shell, the brake shell heat absorption of epicyclic reduction gear, be descended the temperature of retarder, brake inside.
As preferably, described liquid-supplying system comprises pump, by pump by the oil-feed loop to the cooling chamber feed flow.In the mode of pump feed flow, can select and change different cooling medias according to concrete environment for use, to obtain radiating effect preferably.
As the equivalent of said pump feed flow, the feed liquor loop of liquid-supplying system is directly connected in the oil return oil duct of main hydraulic system, utilizes the back pressure of oil return oil duct to the cooling chamber feed flow, and by the Throttle Valve Control flow; The back pressure of oil return oil duct is 0.2-0.8 MPa.The back pressure of oil return oil duct is controlled to be 0.2-0.8 Mpa, can in the situation that do not affect hydraulic control system, cooling media can be flowed with proper flow rates in cooling system; This feed liquid way can be simplified liquid feeding structure, reduces costs.In order to obtain radiating effect preferably, can wash away the impurity such as friction lining chip by the medium that flows, the back pressure of the oil return oil duct of hydraulic control system is not less than 0.2MPa.
As preferably, the hydraulic circuit of clutch oil cylinder is provided with the control loop of sky hook free releasing or the control loop of heavy hook free releasing; The control loop of empty hook free releasing comprises reducing valve, check valve, two position three way directional control valve and one-way speed-regulating valve; The control loop of heavy hook free releasing comprises reducing valve, check valve, two position three way directional control valve and electric-hydraulic proportion pressure regulating valve, and this electric-hydraulic proportion pressure regulating valve is foot-operated or manual type.During heavy hook free releasing, utilize the electric-hydraulic proportion pressure regulating valve can make in the hydraulic clutch oil cylinder oil pressure realize controlled, therefore when heavy-load lowering, can be with hydraulic clutch as the drg operating mode, pressure in its brake torque and clutch oil cylinder is proportional, like this, and along with the variation of brake torque size, the speed of heavy hook free releasing can be regulated, and can realize braking on the optional position of transferring; Speed when this clutch friction power of utilizing the hydraulic clutch in reel is carried out the weight free releasing is controlled and the mode of braking, alleviated the brake torque that bears of retarder, make the suffered impact of the interior gear of epicyclic reduction gear less, extended its service life, also made simultaneously compact overall structure; In addition, the replacing of hydraulic clutch friction lining is more convenient, and maintenance and maintenance cost are lower.
As preferably, be fixed with bolster on described frame, this bolster and urceolus, piston coaxial setting, urceolus is fixed on the middle part of this bolster by bearing, the right-hand member of piston is hollow and is provided with spline and consists of with the pinion carrier mouth of this spline and epicyclic reduction gear the spline joint that floats by end, left end that bearing carrier ring is located at this bolster, and this spline is invoice serration; Described reel is the tube structure that the equal diameter endoporus connects two ends, and the one end is fixed in urceolus, the other end is located on the shell of hydraulic brake by bearing carrier ring.Urceolus and piston all are fixed on bolster, make urceolus and piston be easy to have higher right alignment, be located at respectively the movable friction plate on urceolus and piston and decide friction lining and also have higher parallelism, making movable friction plate and decide friction lining and can obtain good contacting, making disengaging performance reliable and stable; Piston and pinion carrier be connected to floating connection, make the right alignment between pinion carrier and piston require lower, be beneficial to manufacturing, assembling, the more important thing is, in whole messenger chain, morpheme error due to various transmission parts in making, and cause the problem that has larger malalignment between the transmission mouth of drg and planetary reduction gear and power-transfer clutch, can solve by the spline joint that floats.Because bolster is fixed on frame, so power-transfer clutch when running vibrations, impact, all directly transfer on frame by bolster, but not on reel, the impact that the running of reel is hit is less, thereby has improved the stability of reel operation.In addition, this structure has been utilized the inner space of reel fully, makes integral structure compacter.Existing reel is an end open, the semi-enclosed structure of the other end, semiclosed end has the sidewall of inside extension more, and the existence of this sidewall has limited the retarder in reel, the assembly manipulation space of power-transfer clutch, therefore as preferred, described reel is the tube structure that the equal diameter endoporus connects two ends.This structure, reel two ends are full open type, for the assembling of the parts in reel and dismounting provide larger operational space.
As preferably, described bolster is provided with the first hydraulic fluid port that is communicated in inner chamber, the 3rd hydraulic fluid port that is communicated in the second hydraulic fluid port of exocoel and is communicated in clutch oil pocket A chamber.Hydraulic fluid port is located on bolster, is easy to processing, and is easy to lay pipeline.
In order to improve cooling performance, the excircle of described urceolus is stepped, and its ladder section and reel inwall form liquid guiding cavity, and urceolus is provided with at the end away from epicyclic reduction gear the hole that communicates with liquid guiding cavity.Cooling media flows through liquid guiding cavity, both can absorb the heat of reel, can take away again the impurity that is deposited on the reel bottom.
In order further to improve radiating effect, described oil cylinder is provided with annular convex shoulder, the periphery of annular convex shoulder and reel inwall free-running fit, and establish the plastic hoop sealing.Annular convex shoulder is separated with exocoel, makes more even at exocoel each several part cloth of cooling media, also is easy to control the flow velocity of cooling media; Can be provided with liquid-through hole on annular convex shoulder, liquid-through hole can be regulated the flow direction of cooling media in exocoel, selects to control cooling media in the flow distribution of exocoel according to the needs of different parts.
As preferably, described hydraulic brake comprises shell, braking main shaft, brake strip, disc brake spring, and the brake piston that can be resisted against the brake strip sidewall; Be provided with brake chamber B between brake piston middle part and shell, shell is provided with the braking oil duct that passes into this braking oil pocket B.This brake structure, braking is reliable, more compact structure.In order further to improve integrally-built compactness, integrally-built intensity, as preferably, be provided with stopper tab in described shell, this stopper tab one sidewall and brake strip offsets, another sidewall is provided with surface bearing and consist of with this surface bearing and pinion carrier and be in transmission connection.This structure, with pinion carrier directly and hydraulic brake integrated, by the axial limiting of surface bearing as pinion carrier, thereby simplified the structure of epicyclic reduction gear, make the integrated level of hydraulic brake and epicyclic reduction gear higher, reduced the volume of drg and retarder, made drg and retarder be easier to be built in reel.As preferably, the left end of sun wheel of described epicyclic reduction gear extends to axle, and this axle is provided with spline and consists of with the braking main shaft with this spline and is in transmission connection.This structure, simple in structure, reliable, especially further simplified integral structure.
Therefore, the present invention has following beneficial effect:
1, can carry out effectively coolingly to the decide friction lining, movable friction plate of power-transfer clutch, make friction lining be in better operating temperature, guarantee thus the power-transfer clutch stability;
2, the cooling media that flows can be taken away the impurity such as chip that clutch friction plate produces, and the friction face of friction lining is maintained in the clean condition;
3, can to shell, the brake shell heat absorption of epicyclic reduction gear, the temperature of retarder, brake inside be descended;
When 4, utilizing the clutch friction power of the hydraulic clutch in reel to carry out the weight free releasing, speed is controlled and braking, control and stablize, brake reliably, effectively alleviate the lock torque of retarder, extended the service life of retarder inner gear, reduced the maintenance cost; In addition, the hook that need not to attach most importance to freely arranges special-purpose brake equipment in the below in addition, makes compact overall structure;
5, urceolus and piston all are fixed on bolster by bearing, make urceolus and piston have higher right alignment, and movable friction plate is contacted with deciding friction lining to have higher parallelism well, make the disengaging performance of power-transfer clutch reliable and stable; The reel structure of the complete open type in two ends makes power-transfer clutch, retarder, drg in reel have larger turning to join the operational space, makes it to be easier to Assembly ﹠Disassembly;
6, vibrations, the impact in power-transfer clutch when running, all can directly transfer on frame by bolster, and the impact that the running of reel is hit is less, thereby has improved the stability of reel operation;
7, urceolus and piston all are fixed on by bearing the inner space that structure on bolster has been utilized reel fully, make integral structure compacter; Have the higher hydraulic brake of integrated level and reducer structure, simplified the axial limit structure of epicyclic reduction gear, saved the reel inner space.
Description of drawings
Accompanying drawing 1 is a kind of hydraulic schematic diagram of the present invention;
Accompanying drawing 2 is another kind of hydraulic schematic diagrams of the present invention;
Accompanying drawing 3 is a kind of structural representations of the present invention;
Accompanying drawing 4 is a kind of structural representations of oil ring.
The specific embodiment
Below by embodiment, and by reference to the accompanying drawings, technical scheme of the present invention is described in further detail.
Embodiment: energy-saving hydraulic winch of the present invention, as shown in accompanying drawing 1, accompanying drawing 3, it comprises frame, reel 13, HM Hydraulic Motor 20, fluid control piece 1, cooling system, hydraulic control system and is located at reel 13 interior hydraulic brake, epicyclic reduction gear 4 and hydraulic clutch; Hydraulic clutch comprises urceolus 11, decides friction lining 10, movable friction plate 9 and the clutch oil cylinder that drives two friction plate clutch, and clutch oil cylinder comprises cylinder body 12, piston 7 and dish spring 14; Cylinder body 12 middle parts are provided with sidewall, and 7, this sidewall and piston are provided with clutch oil pocket A; Dish spring 14 is fixed on piston 7 by block 15.Decide friction lining 10, movable friction plate 9 is crisscross arranged on urceolus 11, piston 7.
Cooling system comprises cooling chamber and supplies with the liquid-supplying system of circulating cooling medium to cooling chamber; Cooling chamber comprises the inner chamber D that is located at piston 7 middle parts, the exocoel C that contains clutch friction plate; The circumference of piston 7 is provided with the delivery hole 30 of several communication with cavity D and exocoel C, and this delivery hole 30 is positioned on the piston section that movable friction plate 9 is set.Liquid-supplying system comprises pump M, by pump M by the oil-feed loop to the cooling chamber feed flow.
The excircle of urceolus 11 is stepped, and its ladder section and reel 13 inwalls form liquid guiding cavity 31, and urceolus 11 is provided with the hole 34 that communicates with liquid guiding cavity 31 at the end away from epicyclic reduction gear 4.
The hydraulic circuit of clutch oil cylinder is provided with the control loop of sky hook free releasing or the control loop of heavy hook free releasing.
the control loop of empty hook free releasing comprises reducing valve 41, check valve 42, two position three way directional control valve 43 and one-way speed-regulating valve 44, as shown in Figure 2, during work, two position three way directional control valve 43 switching channels, hydraulic oil enters clutch oil cylinder through one-way speed-regulating valve 44, cylinder body 12 moves and compact disc spring 14, make and decide friction lining 10 and separate with movable friction plate 9, the mode of operation that capstan drum 13 freedoms of entry are transferred, during near the target location, two position three way directional control valve 43 resets, hydraulic oil in clutch oil cylinder flows back to fuel tank through one-way speed-regulating valve 44, at this moment, one-way speed-regulating valve 44 is controlled the speed of oil return, thereby controlled the rotating speed of reel 13, make reel 13 stop at comparatively reposefully the target location, impact when having avoided stopping, jitter phenomenon.
The control loop of heavy hook free releasing comprises reducing valve 51, check valve 52, two position three way directional control valve 53 and electric-hydraulic proportion pressure regulating valve 54, and as shown in Figure 1, this electric-hydraulic proportion pressure regulating valve 54 is foot-operated or manual type.during heavy hook free releasing, two position three way directional control valve 53 switching channels, hydraulic oil enters clutch oil cylinder through electric-hydraulic proportion pressure regulating valve 54, utilize electric-hydraulic proportion pressure regulating valve 54 can make the oil pressure in clutch oil cylinder realize controlled, this moment is under the combined action of cylinder body 12 and dish spring 14, make the friction force of deciding 9 of friction lining 10 and movable friction plates controlled, therefore, can be with hydraulic clutch as the drg operating mode, pressure in its brake torque and oil cylinder is proportional, like this, variation along with the brake torque size, the speed of heavy hook free releasing can be regulated, and can realize braking on the optional position of transferring.
Need to prove that the control program of above-mentioned heavy hook free releasing because the pressure setting range of electric-hydraulic proportion pressure regulating valve 54 is wider, to making when deciding friction lining 10 and separating with movable friction plate 9, has also just realized the function of empty hook free releasing when its output end pressure height; But compare with the control program of aforementioned empty hook free releasing, the cost of the control program of heavy hook free releasing is higher, so can be used as a kind of selection scheme of sky hook free releasing.
Be fixed with bolster 17 on frame, this bolster 17 and urceolus 11, the piston 7 coaxial settings of three, urceolus 11 is fixed on the middle part of this bolster 17 by bearing 16, the right-hand member of piston 7 is hollow and is provided with spline and consists of spline joints with pinion carrier 5 mouths of this spline and epicyclic reduction gear 4 by end, left end that bearing 21 is sheathed on this bolster 17, this spline joint is floating connection, and this spline is invoice serration; Reel 13 1 ends are fixed in urceolus 11, the other end is supported on the shell 29 of hydraulic brake by bearing 3.The interstitial hole left end of piston 7 is provided with end cover 6.
Be provided with oil ring 22 between bolster 17 and piston 7; Oil ring 22 is flush fit with bolster 17, and consists of sliding bearing structure with bolster 17.
As shown in Figure 4, the inner groove 221 that oil ring 22 is provided with outer groove 222, communicate with clutch oil duct L port and be connected outer groove 222 and the oil guiding hole L1 of inner groove 221, inner groove 221, outer groove 222 lay respectively on the inside and outside circumference of oil ring 22 and are circular groove.
Frame comprises left socle 2, right support 19, and the shell 29 of hydraulic brake is fixed in left socle 2, and bolster 17 is fixed in right support 19.
Hydraulic brake comprises shell 29, braking main shaft 28, brake strip 26, disc brake spring 27, and the brake piston 36 that can be resisted against brake strip 26 sidewalls; 29, brake piston 36 middle parts and shell are provided with brake chamber B, and shell 29 is provided with the braking oil duct p4 that passes into this braking oil pocket B.Be provided with stopper tab 25 in shell 29, this stopper tab 25 1 sidewalls and brake strip 26 offsets, another sidewall is provided with surface bearing 24 and consist of with pinion carrier 5 with this surface bearing 24 and be in transmission connection.Sun wheel 38 left ends of epicyclic reduction gear 4 extend to axle, and this axle is provided with spline and consists of with braking main shaft 28 with this spline and is in transmission connection.Disc brake spring 27 is located between brake piston 36, drg end cap 37 compressiblely.
Urceolus 11 right-hand members are provided with gear ring 24, this gear ring 24 and the coaxial setting of bolster 17; Described bolster 17 is fixedly connected with right support 19, and right support 19 is provided with rotating shaft 18, and rotating shaft 18 is provided with and gear ring 24 gears in meshs 23.The right-hand member of urceolus 11 is provided with madial wall 132, and madial wall 132 is fixed on bolster 17 by bearing 16, and madial wall 132 is provided with boss, and gear ring 24 is fixed on this boss.
Embodiment 2: as shown in Figure 2, the feed liquor loop of liquid-supplying system is directly connected in the oil return oil duct of main hydraulic system, utilizes the back pressure of oil return oil duct to the cooling chamber feed flow, and controls flows by flow regulating valve 45; The back pressure of oil return oil duct is 0.2-0.8 MPa.The back pressure of oil return oil duct is not less than 0.2MPa.All the other are with embodiment 1.
Claims (10)
1. an energy-saving hydraulic winch, comprise frame, reel (13), HM Hydraulic Motor (20), hydraulic control system, and be located at hydraulic brake, epicyclic reduction gear (4) and hydraulic clutch in reel (13); Described hydraulic clutch comprises urceolus (11), decides friction lining (10), movable friction plate (9) and the clutch oil cylinder that drives two friction plate clutch, described clutch oil cylinder comprises cylinder body (12), piston (7) and dish spring (14), it is characterized in that: also be provided with cooling system, this cooling system comprises cooling chamber and supplies with the liquid-supplying system of circulating cooling medium to cooling chamber; Cooling chamber comprises the inner chamber (D) of being located at piston (7) middle part, the exocoel (C) that contains clutch friction plate; The circumference of described piston (7) is provided with the delivery hole (30) of several communication with cavity (D) and exocoel (C), and this delivery hole (30) is positioned on the piston section that movable friction plate (9) is set.
2. energy-saving hydraulic winch according to claim 1, it is characterized in that: described liquid-supplying system comprises pump (M), by pump (M) by the oil-feed loop to the cooling chamber feed flow.
3. energy-saving hydraulic winch according to claim 1, it is characterized in that: the feed liquor loop of described liquid-supplying system is directly connected in the oil return oil duct of main hydraulic system, utilize the back pressure of oil return oil duct to the cooling chamber feed flow, and control flow by flow regulating valve (45); The back pressure of oil return oil duct is 0.2-0.8 MPa.
4. energy-saving hydraulic winch according to claim 3, it is characterized in that: the oil pressure that enters cooling system is not less than 0.2MPa.
5. according to claim 1 and 2 or 3 or 4 described energy-saving hydraulic winchs is characterized in that: the hydraulic circuit of clutch oil cylinder is provided with the control loop of sky hook free releasing or the control loop of heavy hook free releasing; The control loop of empty hook free releasing comprises reducing valve (41), check valve (42), two position three way directional control valve (43) and one-way speed-regulating valve (44); The control loop of heavy hook free releasing comprises reducing valve (51), check valve (52), two position three way directional control valve (53) and electric-hydraulic proportion pressure regulating valve (54), and this electric-hydraulic proportion pressure regulating valve (54) is foot-operated or manual type.
6. according to claim 1 and 2 or 3 or 4 described energy-saving hydraulic winchs, it is characterized in that: be fixed with bolster (17) on described frame, this bolster (17) and urceolus (11), the coaxial setting of piston (7), urceolus (11) is fixed on the middle part of this bolster (17) by bearing (16), the right-hand member of piston (7) is hollow and the end that is sheathed on this bolster (17) by bearing (21), the spline joint that left end is provided with spline and floats with pinion carrier (5) the mouth formation of this spline and epicyclic reduction gear (4), this spline is invoice serration, described reel (13) connects the tube structure at two ends for the equal diameter endoporus, the one end is fixed in urceolus (11), the other end is set on the shell (29) of hydraulic brake by bearing (3).
7. energy-saving hydraulic winch according to claim 6 is characterized in that: described bolster (17) is provided with the first hydraulic fluid port (Q) that is communicated in inner chamber (D), the second hydraulic fluid port (O') that is communicated in exocoel (C) and is communicated with the 3rd hydraulic fluid port (L) in clutch oil cylinder A chamber.
8. according to claim 1 and 2 or 3 or 4 described energy-saving hydraulic winchs, it is characterized in that: the excircle of described urceolus (11) is stepped, its ladder section and reel (13) inwall form liquid guiding cavity (31), and urceolus (11) is provided with the hole (34) that communicates with liquid guiding cavity (31) at the end away from epicyclic reduction gear (4).
9. according to claim 1 and 2 or 3 or 4 described energy-saving hydraulic winchs, it is characterized in that: described oil cylinder (12) is provided with annular convex shoulder (32), the periphery of annular convex shoulder (32) and reel (13) inwall free-running fit, and establish the plastic hoop sealing.
10. according to claim 1 and 2 or 3 or 4 described energy-saving hydraulic winchs, it is characterized in that: described hydraulic brake comprises shell (29), braking main shaft (28), brake strip (26), disc brake spring (27), and the brake piston (36) of actuating brake strip (26); Be provided with brake chamber (B) between brake piston (36) middle part and shell (29), shell (29) is provided with the braking oil duct (p4) that passes into this braking oil pocket (B); Be provided with stopper tab (25) in described shell (29), this stopper tab (25) one sidewalls and brake strip (26) offsets, another sidewall is provided with surface bearing (24) and consist of with this surface bearing (24) and pinion carrier (5) and be in transmission connection; Sun wheel (38) left end of described epicyclic reduction gear (4) extends to axle, and this axle is provided with spline and consists of with braking main shaft (28) with this spline and is in transmission connection.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110071185 CN102205931B (en) | 2011-03-24 | 2011-03-24 | Energy-saving hydraulic winch |
| PCT/CN2011/072997 WO2012126190A1 (en) | 2011-03-24 | 2011-04-19 | Energy-saving hydraulic winch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110071185 CN102205931B (en) | 2011-03-24 | 2011-03-24 | Energy-saving hydraulic winch |
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| CN102205931A CN102205931A (en) | 2011-10-05 |
| CN102205931B true CN102205931B (en) | 2013-06-12 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102887449A (en) * | 2012-10-12 | 2013-01-23 | 南通力威机械有限公司 | Large-tonnage lifting winch |
| CN103641011B (en) * | 2013-12-24 | 2016-02-17 | 大连华锐重工集团股份有限公司 | A kind of performance-oriented free off the hook hoisting mechanism |
| CN104477803B (en) * | 2014-11-05 | 2017-04-12 | 中联重科股份有限公司 | Engineering machine and hoisting mechanism thereof |
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| JP2002114490A (en) * | 2000-10-12 | 2002-04-16 | Kobelco Contstruction Machinery Ltd | Winch |
| CN1346784A (en) * | 2001-11-13 | 2002-05-01 | 胡世璇 | Hydraulic winch with free release function |
| CN1707141A (en) * | 2005-05-11 | 2005-12-14 | 胡世璇 | Clutch stepper integrated hydraulic driving device |
| CN101190770A (en) * | 2007-09-05 | 2008-06-04 | 胡世璇 | Hydraulic pressure reel cart with clutch at transmission last level |
| CN201999666U (en) * | 2011-03-24 | 2011-10-05 | 胡世璇 | Energy-saving hydraulic winch |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102205931A (en) | 2011-10-05 |
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