CN108584740A - Hydraulic pressure internal expanding type normal-close clutch device - Google Patents
Hydraulic pressure internal expanding type normal-close clutch device Download PDFInfo
- Publication number
- CN108584740A CN108584740A CN201810333260.9A CN201810333260A CN108584740A CN 108584740 A CN108584740 A CN 108584740A CN 201810333260 A CN201810333260 A CN 201810333260A CN 108584740 A CN108584740 A CN 108584740A
- Authority
- CN
- China
- Prior art keywords
- spring
- connecting plate
- breach
- bar
- shaped seat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
- B66D1/02—Driving gear
- B66D1/08—Driving gear incorporating fluid motors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D5/00—Braking or detent devices characterised by application to lifting or hoisting gear, e.g. for controlling the lowering of loads
- B66D5/02—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes
- B66D5/06—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes with radial effect
- B66D5/10—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes with radial effect embodying bands
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D5/00—Braking or detent devices characterised by application to lifting or hoisting gear, e.g. for controlling the lowering of loads
- B66D5/02—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes
- B66D5/24—Operating devices
- B66D5/26—Operating devices pneumatic or hydraulic
- B66D5/28—Operating devices pneumatic or hydraulic specially adapted for winding gear, e.g. in mining hoists
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D2700/00—Capstans, winches or hoists
- B66D2700/03—Mechanisms with latches or braking devices in general for capstans, hoists or similar devices as well as braking devices actuated electrically or by fluid under pressure
- B66D2700/035—Fluid operated braking devices
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Braking Arrangements (AREA)
Abstract
Hydraulic pressure internal expanding type normal-close clutch device, including hydraulic cylinder, brake band, spring, wave, support base, U-shaped seat, connecting plate under position-limit mechanism, back-moving spring, connecting pin, locking nut, spring adjustment screw, spring upper support seat, spring.Brake band includes interior steel band and tyre.The upper end breach of brake band.Connecting plate is equipped with upper limit mechanism on the both sides of breach.The left end protrusion of connecting plate upper end leans against the left side of the left end protrusion of connecting plate upper end in breach on the right side of the upper end of interior steel band.U-shaped seat is set there are three position-limit mechanism.The upper and lower end of spring is respectively connected with the upper and lower support base of spring, and spring upper support seat is connected with spring adjustment screw, spring adjustment screw and waves hinged, and the left end of the lower end of support base and connecting plate is hinged under spring.The lower end of connecting plate and U-shaped seat are connected.The right end of the lower end of connecting plate and the cylinder body of hydraulic cylinder are hinged, and the right end of the piston of hydraulic cylinder and the upper end waved is hinged.
Description
Technical field
The present invention relates to a kind of arrangement of clutch, and in particular to a kind of arrangement of clutch that hydraulic wireline winch uses.
Background technology
Hydraulic clutch is a kind of clutch being commonly used on Modern hydraulic winch.Application number：200820128343.6、
201254436 Y of Authorization Notice No. CN, entitled " engaging-disengaging gear of winch " utility model patent disclose a kind of winch clutch
Device：" it is characterized in that：Wherein, the arrangement of clutch is by a lid, a guiding plate, a clutch discs, an elastomer, a rotor
And one assembling shrouding disc formed, which protrudes outward a prominent body, center opens up together in being engaged on the large perforation of the shell
One perforation；The guiding plate center can entangle the prominent body of the lid for a large perforation, offer a promotion groove on periphery, backwards
Cloth shows a guiding skewback on the ontology of lid；The center of the clutch discs can entangle the prominent body of the lid for a large perforation, to
The side for guiding plate is extended with a trip(ping) lever and is equipped with a locating lug, in clutch discs and offers one and corresponds to the guiding skewback
Arc wears groove, which is fed through lid and plants in the standing block hole of shell, and arrives at the positioning of the second internal gear
At slot, the locating lug is then corresponding to paste the guiding skewback for touching guiding plate；The elastomer entangles the prominent body outside in the clutch discs；It should
Rotor center forms a perforation, forms an outer casing towards the side of clutch discs, can cover and press and the elastomer, and then push away
So that clutch discs, guiding plate and lid three is made patch and touches property contact；The rotor forms a catch bar inside the outer casing, can
Clamp corresponding promotion convex block；The assembling shrouding disc is then positioned at the perforation of the rotor, and is locked with the prominent body front end of the lid
Affixed conjunction." the problem is that：It is complicated, difficulty is big for processing and manufacturing, brake force is small.
Invention content
The main inventive purpose of the present invention, is to provide a kind of clutch that hydraulic wireline winch simple in structure, that brake force is big uses
Device.
Technical solution used in the present invention is：A kind of hydraulic pressure internal expanding type normal-close clutch device, including hydraulic cylinder, braking
Band spring, waves, position-limit mechanism, back-moving spring, connecting pin, locking nut, spring adjustment screw, spring upper support seat, spring
Lower support base, U-shaped seat, connecting plate.Brake band includes interior steel band and the tyre connected with interior steel band.The upper end breach of brake band.
The both sides of breach are respectively provided with one piece of fixed plate and upper limit plate, and fixed plate is fixed with spring connecting rod by one end of breach, tenses
Spring is connected with spring connecting rod.The upper end of connecting plate is respectively provided with a upper limit mechanism, the upper limit on the both sides of breach
Mechanism includes the Limit screw with outer-hexagonal, Limit screw locking nut；Diameter is more than damper brake at the outer-hexagonal of Limit screw
With the slot hole in interior steel band, Limit screw positive stop end stretches into the slot hole of interior steel band, to play position-limiting action.Limit screw is screwed into
In top connecting plate or so threaded hole, adjusts to after required length, locked by Limit screw locking nut.Connecting plate upper end
Left end protrusion leans against the left side of the left end protrusion of connecting plate upper end in breach on the right side of the upper end of interior steel band.Two of U-shaped seat
The upper end of side and the bottom of U-shaped seat are respectively equipped with a position-limit mechanism, and the position-limit mechanism includes gag lever post and spacing head.Limit
Position bar includes bar fixing end and bar positive stop end, and the diameter of bar fixing end is more than the diameter of bar positive stop end.Bar fixing end and U-shaped seat
Corresponding site is connected, and spacing head is connected with the sliding of bar positive stop end, and the free end of bar positive stop end is stretched outside slot hole set on interior steel band
In.The width of the upper/lower terminal of connecting plate is all higher than the width of its middle-end.The upper and lower end of spring respectively with the upper and lower support base of spring
It is connected, the upper end of spring upper support seat is connected with spring adjustment screw, and the upper end of spring adjustment screw by connecting pin and is waved
Hinged, spring adjustment screw is respectively equipped with a locking nut with Lock spring adjusting bolt and connecting pin in the upper and lower of connecting pin
Relative position, the left end of the lower end of the lower end and connecting plate of support base is hinged by lower-left articulated shaft under spring.Connecting plate
The middle part of lower end and the middle part of U-shaped seat are connected.The right end of the lower end of connecting plate and the cylinder body of hydraulic cylinder pass through bottom right articulated shaft
Hinged, the piston of hydraulic cylinder and the right end waved are hinged by connecting pin.
Here hydraulic cylinder obtains fuel feeding, emptying by corresponding oil channel structures.In assembly, by adjusting locking screw
Mother is coordinated using both spring and back-moving spring to adjust the aperture of breach aperture.Default conditions are the system of clutch and reel
Dynamic drum is in impaction state.Input shaft and clutch are connected by intermediate spline, when input shaft input speed, clutch, volume
Cylinder rotates together with input shaft.When the oil cylinder oil inlet in clutch, clutch and reel are detached from, and input shaft continues to revolve with clutch
Turn, reel is static.The present invention is a kind of hydraulic wireline winch arrangement of clutch simple in structure, brake force is big, use reliability is high.
Preferably, bar fixing end is screw rod；The position-limit mechanism further includes the positioning and locking spiral shell being adapted to bar fixing end
Female and nut seat.Nut seat and U-shaped seat corresponding site are connected, and bar fixing end is screwed into after the threaded hole in U-shaped seat by locking nut
It is locked.
Preferably, the middle part for waving upper end is protruded in the breach of the upper end of brake band, rises and compress braking action.
Preferably, the periphery of locking nut is provided with several grooves, the convex block among each two groove sets that there are one operations
Hole.This preferred embodiment, it is easy to operation.
Preferably, if the lower end of spring adjustment screw is along the circumferential direction evenly equipped with dry run counterbore.This preferred embodiment, just
In operation.
Preferably, described wave shared identical front and back two pieces, the upper end of connecting plate is between front and back two pieces are waved.
The connecting pin on the left side also cross front and back two pieces wave and be clipped in front and back two pieces wave between spring adjustment screw.The company on the right
Outbound also cross front and back two pieces wave and be clipped in front and back two pieces wave between hydraulic cylinder piston connecting rod.This preferred side
Case, symmetrical configuration, reliable operation, stability are high.
It is constituted preferably, interior steel band is connected by steel band in two pieces points.This preferred embodiment, reasonable for structure, processing and manufacturing is held
Easily.
In conclusion the beneficial effects of the invention are as follows：It is a kind of liquid simple in structure, brake force is big, use reliability is high
Press engaging-disengaging gear of winch.
Description of the drawings
Fig. 1：The stereoscopic schematic diagram of the present invention；
Fig. 2：The schematic front view of the present invention（Brake band is in impaction state）；
In figure：Hydraulic cylinder 1, brake band 2, in addition 2.1, interior steel band 2.2, slot hole 2.21, fixed plate 2.3, upper limit plate 2.4,
Spring 3 waves 4, position-limit mechanism 5, gag lever post 5.1, bar fixing end 5.11, bar positive stop end 5.12, spacing head 5.2, nut seat
5.3, positioning and locking nut 5.4, back-moving spring 6, connecting pin 7, locking nut 8, spring adjustment screw 9, spring upper support seat 10,
Support base 11, U-shaped seat 12, connecting plate 13, hydraulic cylinder piston connecting rod 14, upper limit mechanism 15, Limit screw under spring
15.1, Limit screw locking nut 15.2, upper limit bar 15.3, upper limit position block 15.4.
Specific implementation mode
Below with reference to the embodiments and with reference to the accompanying drawing the technical solutions of the present invention will be further described.
As shown in Figure 1 and Figure 2 shown in, the present invention include hydraulic cylinder 1, brake band 2, spring 3, wave 4, position-limit mechanism 5,
Support base 11, U-shaped seat under back-moving spring 6, connecting pin 7, locking nut 8, spring adjustment screw 9, spring upper support seat 10, spring
12, connecting plate 13.Brake band include interior steel band 2.2 and with interior steel band be connected tyre 2.1, the upper end breach of brake band, wherein
Interior steel band 2.2 is connected by steel band bolt arrangement in two pieces points and is constituted.The both sides of breach be respectively provided with one piece of fixed plate 2.3 and on
Limiting plate 2.4, fixed plate are fixed with spring connecting rod by one end of breach, and back-moving spring is connected with spring connecting rod.Connecting plate
Upper end be respectively provided with a upper limit mechanism 15 on the both sides of breach.The upper limit mechanism includes Limit screw 15.1, limit
Screw locknut 15.2, upper limit bar 15.3 and the upper limit position block 15.4 being adapted to upper limit bar, the diameter of Limit screw are big
In the diameter of upper limit bar.Upper limit position block is nested on upper limit bar.The present embodiment Limit screw 15.1, Limit screw fixed block
Limit screw locking nut 15.2, upper limit bar 15.3 and the upper limit position block 15.4 that is adapted to upper limit bar are structure as a whole, and have
There is compact-sized, the high advantage of intensity.Upper left limiting plate is set there are one the positioning round orifice with upper limit bar adaptation, upper limit bar
Free end is stretched outside in positioning round orifice set on upper limit plate.【Upper left limiting plate and upper left gag lever post seemingly will not be mutually left
Right avertence pendulum, it is contemplated that still using positioning round orifice quite a lot of】It is grown with the limit of upper limit bar adaptation there are one upper right limiting plate is set
The free end in hole, corresponding upper limit bar is stretched outside in limit slot hole.The left end protrusion of connecting plate upper end in breach, interior steel band
The left side of the left end protrusion of connecting plate upper end is leaned against on the right side of upper end.The upper end of two sides of U-shaped seat and the bottom of U-shaped seat point
Position-limit mechanism there are one not setting, the position-limit mechanism includes gag lever post 5.1 and spacing head 5.2；Gag lever post includes bar fixing end
5.11 and bar positive stop end 5.12, the diameter of bar fixing end is more than the diameter of bar positive stop end.The corresponding site of bar fixing end and U-shaped seat
It is connected, spacing head is connected with the sliding of bar positive stop end, and the free end of bar positive stop end is stretched outside in slot hole 2.21 set on interior steel band.Make
To be preferred, bar fixing end is screw rod.The position-limit mechanism further includes the positioning and locking nut 5.4 and nut being adapted to bar fixing end
Seat 5.3.Nut seat and U-shaped seat corresponding site are connected（Preferably, the present embodiment nut seat and U-shaped seat are structure as a whole）, spiral shell
Female seat and U-shaped seat corresponding site are formed with coaxial, isometrical screw hole, and bar fixing end and nut seat use positioning and locking nut lock after being spirally connected
It fastens.The maximum width of the left and right directions of the upper/lower terminal of connecting plate is all higher than the width of its middle-end.The upper and lower end of spring
Respectively with the upper and lower support base of spring be connected, the upper end of spring upper support seat is connected with spring adjustment screw, spring adjustment screw it is upper
End, which passes through connecting pin and waves, to be hinged, and spring adjustment screw is respectively equipped with a locking nut to lock bullet in the upper and lower of connecting pin
The relative position of spring adjusting bolt and connecting pin, the left end of the lower end of the lower end and connecting plate of support base is cut with scissors by lower-left under spring
Spindle is hinged.Preferably, the lower end of spring adjustment screw 9 and the upper end welding of spring upper support seat 10 are connected, and spring tune
If the lower end of section bolt 9 is along the circumferential direction evenly equipped with dry run counterbore.Pass through in the middle part of the middle part of the lower end of connecting plate and U-shaped seat
Bolt is connected；The right end of the lower end of connecting plate and the cylinder body of hydraulic cylinder are hinged by bottom right articulated shaft, the piston of hydraulic cylinder
Hinged by connecting pin with the right end for the upper end waved, the middle part for waving 4 upper ends is protruded in the breach of the upper end of brake band.
Preferably, waving 4 shared identical two pieces front and back described in the present embodiment, the upper end of connecting plate 13 is located at front and back two
Block waves between 4；The connecting pin 7 on the left side waves 4 also cross front and back two pieces and is clipped in the front and back two pieces spring tune waved between 4
Save bolt 9；The connecting pin 7 on the right waves 4 and is clipped in the front and back two pieces hydraulic cylinders waved between 4 and lives also cross front and back two pieces
Fill in connecting rod 14【Hydraulic cylinder piston connecting rod is connected with nut by screw thread with hydraulic cylinder piston by constitutes hydraulic piston
A part】.The piston of hydraulic cylinder is by the piston of the connected realization hydraulic cylinder with hydraulic cylinder piston connecting rod 14 and shakes
The right end of the upper end of pendulum is hinged by connecting pin.
The specific embodiment of the above is only the preferable embodiment of the present invention, and the tool of the present invention is not limited with this
Body implements structure and practical range.In fact, the shape, structure and purpose of design can also make according to the present invention
Equivalent variation.Therefore, some equivalence changes made by all shape, structures and purpose of design in accordance with the present invention ought to
It is included within the scope of protection of the present invention namely these equivalence changes should all be protected by the present invention.
Claims (7)
1. a kind of hydraulic pressure internal expanding type normal-close clutch device, it is characterized in that：Including hydraulic cylinder, brake band, spring waves, limit
Mechanism, back-moving spring, connecting pin, locking nut, spring adjustment screw, the upper and lower support base of spring, U-shaped seat, connecting plate；Braking
Band includes tyre and interior steel band, brake band upper end breach；Breach both sides respectively set a fixed plate and upper limit plate, and fixed plate leans on breach
One end be fixed with spring connecting rod, back-moving spring is connected with spring connecting rod；Connecting plate upper end is respectively provided with one on breach both sides
Upper limit mechanism, upper limit mechanism include Limit screw, Limit screw locking nut；Diameter is more than at the outer-hexagonal of Limit screw
Slot hole in damper brake band in steel band, Limit screw positive stop end stretch into the slot hole of interior steel band, to play position-limiting action；Limit spiral shell
Bar is screwed into top connecting plate or so threaded hole, is adjusted to after required length, is locked by locking nut；A left side for connecting plate upper end
End protrusion leans against the left side of the left end protrusion of connecting plate upper end in breach on the right side of the upper end of interior steel band；Two sides of U-shaped seat
The upper end on side and the bottom of U-shaped seat are respectively equipped with a position-limit mechanism, and the position-limit mechanism includes gag lever post and spacing head；Limit
Bar includes bar fixing end and bar positive stop end, and the diameter of bar fixing end is more than the diameter of bar positive stop end；The phase of bar fixing end and U-shaped seat
Position is answered to be connected, spacing head is connected with the sliding of bar positive stop end, and the free end of bar positive stop end is stretched outside in slot hole set on interior steel band；
The width of the upper/lower terminal of connecting plate is all higher than the width of its middle-end；The upper and lower end of spring is respectively solid with the upper and lower support base of spring
Even, the upper end of spring upper support seat is connected with spring adjustment screw, and hinge by connecting pin and is waved in the upper end of spring adjustment screw
It connects, adjusting bolt is respectively equipped with a locking nut with the opposite of Lock spring adjusting bolt and connecting pin in the upper and lower of connecting pin
Position, the left end of the lower end of the lower end and connecting plate of support base is hinged by lower-left articulated shaft under spring；The lower end of connecting plate
Middle part and the middle part of U-shaped seat are connected；The right end of the lower end of connecting plate and the cylinder body of hydraulic cylinder are hinged by bottom right articulated shaft, liquid
The piston of compressing cylinder and the right end waved are hinged by connecting pin.
2. hydraulic pressure internal expanding type normal-close clutch device according to claim 1, it is characterized in that：Bar fixing end is screw rod；It is described
Position-limit mechanism further includes the positioning and locking nut being adapted to bar fixing end（5.4）And nut seat（5.3）；Nut seat and U-shaped seat phase
Position is answered to be connected, bar fixing end is locked after being screwed into the threaded hole in U-shaped seat by locking nut.
3. hydraulic pressure internal expanding type normal-close clutch device according to claim 1, it is characterized in that：It waves（4）The middle part of upper end is convex
Go out in the breach of the upper end of brake band.
4. hydraulic pressure internal expanding type normal-close clutch device according to claim 1, it is characterized in that：Locking nut（8）Periphery open
There are several grooves, the convex block among each two groove sets that there are one handle holes.
5. hydraulic pressure internal expanding type normal-close clutch device according to claim 1, it is characterized in that：Connect bolt（9）Lower end edge
If circumferencial direction is evenly equipped with dry run counterbore.
6. the hydraulic pressure internal expanding type normal-close clutch device according to claim 1-5 any one, it is characterized in that：It is described to wave
（4）It is shared identical two pieces front and back, connecting plate（13）Upper end waved positioned at front and back two pieces（4）Between；The connecting pin on the left side（7）
It is waved also cross front and back two pieces（4）And it is clipped in front and back two pieces and waves（4）Between connection bolt（9）；The connecting pin on the right（7）
It is waved also cross front and back two pieces（4）And it is clipped in front and back two pieces and waves（4）Between hydraulic cylinder piston connecting rod（14）.
7. the hydraulic pressure internal expanding type normal-close clutch device according to claim 1-5 any one, it is characterized in that：Interior steel band
（2.2）It is connected and is constituted by steel band in two pieces points.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810333260.9A CN108584740A (en) | 2018-04-13 | 2018-04-13 | Hydraulic pressure internal expanding type normal-close clutch device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810333260.9A CN108584740A (en) | 2018-04-13 | 2018-04-13 | Hydraulic pressure internal expanding type normal-close clutch device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108584740A true CN108584740A (en) | 2018-09-28 |
Family
ID=63622500
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810333260.9A Pending CN108584740A (en) | 2018-04-13 | 2018-04-13 | Hydraulic pressure internal expanding type normal-close clutch device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108584740A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116462116A (en) * | 2023-05-12 | 2023-07-21 | 宁波新宏液压有限公司 | Double-reel clutch winch capable of being released rapidly |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60129427A (en) * | 1983-12-16 | 1985-07-10 | Hitachi Constr Mach Co Ltd | Negative clutch in winch |
| US6357570B1 (en) * | 1998-11-06 | 2002-03-19 | Valeo | Friction clutch with wear take-up device for friction linings, in particular for motor vehicle, provided with means indicating degree of said wear |
| CN102252038A (en) * | 2011-06-01 | 2011-11-23 | 辽宁抚挖重工机械股份有限公司 | Inner fluctuation zone type friction clutch |
| CN202415045U (en) * | 2011-12-29 | 2012-09-05 | 泰安市新创工程机械有限公司 | Internal expanding clutch for hoisting mechanism capable of achieving free quick release of sky-hook |
| CN202625688U (en) * | 2012-03-26 | 2012-12-26 | 南通力威机械有限公司 | Support structure of friction belt for winch drum clutch |
| CN203189563U (en) * | 2013-04-03 | 2013-09-11 | 抚顺宏桥工程机械制造有限公司 | Internal expansion type clutch |
-
2018
- 2018-04-13 CN CN201810333260.9A patent/CN108584740A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60129427A (en) * | 1983-12-16 | 1985-07-10 | Hitachi Constr Mach Co Ltd | Negative clutch in winch |
| US6357570B1 (en) * | 1998-11-06 | 2002-03-19 | Valeo | Friction clutch with wear take-up device for friction linings, in particular for motor vehicle, provided with means indicating degree of said wear |
| CN102252038A (en) * | 2011-06-01 | 2011-11-23 | 辽宁抚挖重工机械股份有限公司 | Inner fluctuation zone type friction clutch |
| CN202415045U (en) * | 2011-12-29 | 2012-09-05 | 泰安市新创工程机械有限公司 | Internal expanding clutch for hoisting mechanism capable of achieving free quick release of sky-hook |
| CN202625688U (en) * | 2012-03-26 | 2012-12-26 | 南通力威机械有限公司 | Support structure of friction belt for winch drum clutch |
| CN203189563U (en) * | 2013-04-03 | 2013-09-11 | 抚顺宏桥工程机械制造有限公司 | Internal expansion type clutch |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116462116A (en) * | 2023-05-12 | 2023-07-21 | 宁波新宏液压有限公司 | Double-reel clutch winch capable of being released rapidly |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180928 |
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| RJ01 | Rejection of invention patent application after publication |