CN107758553A - A kind of crane cable speed-limiting device - Google Patents
A kind of crane cable speed-limiting device Download PDFInfo
- Publication number
- CN107758553A CN107758553A CN201711261655.4A CN201711261655A CN107758553A CN 107758553 A CN107758553 A CN 107758553A CN 201711261655 A CN201711261655 A CN 201711261655A CN 107758553 A CN107758553 A CN 107758553A
- Authority
- CN
- China
- Prior art keywords
- valve
- limiting device
- block
- crane cable
- retaining segment
- 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.)
- Granted
Links
Classifications
-
- 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
- B66D5/08—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes with radial effect embodying blocks or shoes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C21/00—Cable cranes, i.e. comprising hoisting devices running on aerial cable-ways
-
- 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
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
The invention provides a kind of crane cable speed-limiting device, this speed-limiting device includes pulley body, and a mounting hole is offered in the middle part of pulley body, a support shaft is inserted with mounting hole；Inner wall of the hole installing is respectively arranged with a spring bearing close to two openings of mounting hole, it is connected between support shaft and pulley body by spring bearing, one section between two spring bearings of support shaft is referred to as retaining segment, several chutes corresponding with the outer wall of retaining segment are evenly arranged with the inwall of mounting hole, slidably connected in chute has the brake(-holder) block in gap between the outer wall of retaining segment, brake(-holder) block and a drive mechanism that can be slided when pulley body rotates to the outer wall direction of retaining segment.The present invention has the advantages that purely mechanic control, non-maintaining, reliability is high.
Description
Technical field
The invention belongs to field of mechanical technique, is related to a kind of crane cable speed-limiting device.
Background technology
Cable crane is referred to be maked somebody a mere figurehead bearing carrier using flexible cable as large span, existed for the loading trolley of suspension heavy weight
Carry and operation is come and gone on rope, there is vertical transport and horizontal transport function.For in the range of larger space, being risen to goods
Weight, transport and handling operation.
Speed limit is carried out to cable, is the important safety measure of cable crane, cable crane, by more than ten, very
Match somebody with somebody control and the guide frame being combined into drag hook to tens pulleys, if it is possible to speed-limiting device is set on pulley, will be big
The big security performance and endurance quality for improving cable crane, also it is capable of the safety monitoring of significantly smaller crane and automatically controlled sets
Apply, so as to simplify its structure, improve reliability,
The content of the invention
The purpose of the present invention is to be directed to above mentioned problem existing for existing technology, there is provided a kind of crane cable speed limit dress
Put, the technical problems to be solved by the invention are how by way of skidding, and the rotary speed of pulley is limited.
The purpose of the present invention can be realized by following technical proposal：A kind of crane cable speed-limiting device, its feature exist
In this speed-limiting device includes pulley body, and a mounting hole is offered in the middle part of the pulley body, is inserted with the mounting hole
One support shaft；The inner wall of the hole installing is respectively arranged with a spring bearing, the support shaft close to two openings of mounting hole
It is connected between pulley body by spring bearing, one section between two spring bearings of support shaft is referred to as retaining segment,
Several chutes corresponding with the outer wall of retaining segment are evenly arranged with the inwall of the mounting hole, are slidably connected in the chute
Have has the brake(-holder) block in gap between the outer wall of retaining segment, and the brake(-holder) block and one can be when pulley body rotate to system
The drive mechanism that the outer wall direction of dynamic section is slided.
By two bearing bearings, by for the one of the support shaft of braking section, i.e., retaining segment is isolated, and prevents dust etc.
Debris disturbs and influenceed braking ability.
In a kind of above-mentioned crane cable speed-limiting device, the drive mechanism includes a valve communicated with chute
Hole, the interior valve body with a bar shape of the valve opening, the valve body is interior to have a valve pocket, and a valve is slidably connected in the valve pocket
Valve pocket is divided into the exocoel on the outside of valve block and the inner chamber on the inside of valve block, slided in the valve opening by block, the valve block
The piston of an annular is connected with, is connected between the piston and brake(-holder) block by the connecting plate of an annular, on the outside of the piston
The via hole of several connection exocoels and valve opening is offered on valve body；It is filled with the valve opening of the piston outer end and in valve pocket
Hydraulic oil.
Pulley rotates, and valve block slides in valve pocket to the direction away from support shaft under the action of the centrifugal force, so as to squeezing valve
The hydraulic oil of intracavitary, via hole conducting valve pocket and valve opening, piston, which is pressurized, drives brake(-holder) block close to the outer wall direction of retaining segment, gear
Turbine RPM reaches setting value, when causing the hydraulic fluid pressure in valve opening to be enough to drive the brake(-holder) block contacted with brake axle, brake(-holder) block
Speed limit is carried out to pulley body, so completes the limitation for being rotated up to speed to pulley body.
Piston and connecting plate are cyclic structure, have preferable intensity and support stationarity, in braking procedure, brake(-holder) block
Impact direction is vertical with the stretching direction of connecting plate, and connecting plate can resist the moment of torsion of vertical direction and indeformable.
Drive mechanism can also promote brake(-holder) block to the close cylinder of retaining segment.
In a kind of above-mentioned crane cable speed-limiting device, it is spacing to offer cable on the outer peripheral face of the pulley body
Groove.
In a kind of above-mentioned crane cable speed-limiting device, a pressure regulation is offered on the inwall of the cable stopper slot
Hole, the regulator hole are threaded with the regulator bolts stretched into valve pocket.
, can be with the pressure of the hydraulic oil of control valve intracavitary, so as to adjust by regulating bolt outwardly or inwardly precession or back-out
The maximum speed limit of pulley is saved, the cleaning in the replacing and valve pocket of the hydraulic oil in valve pocket, can also be realized by regulator hole.
In a kind of above-mentioned crane cable speed-limiting device, connect between the inner of the regulator bolts and the outer end of valve block
It is connected to a back-moving spring.
Back-moving spring is in extended state, can push away movable valve block and inwardly reset, make valve block by centrifugal action while need
Resist back-moving spring pressure, make speed limit more accurate, also make by regulator bolts carry out speed limit regulation sensitivity and can
By Du Genggao.
The pressure of the hydraulic oil and reset force of spring is dual is resetted to valve block, realize the same of brake force and pulley speed
Step.
In a kind of above-mentioned crane cable speed-limiting device, some communication with cavity and exocoel are offered on the valve block
Spout hole.
In a kind of above-mentioned crane cable speed-limiting device, on the vibrating reed on the one side of retaining segment outer wall
With wearing layer.
In a kind of above-mentioned crane cable speed-limiting device, some are offered on the outer wall of the retaining segment along axis
The dust storage groove of directional spreding.
Section hydraulic oil is penetrated on brake(-holder) block, made between brake(-holder) block and retaining segment by the gap between piston and valve body
Coefficient of friction diminishes, and by the setting of dust storage groove, can squeeze into the section hydraulic oil in dust storage groove, also makes what brake(-holder) block was formed
Bits end is stored in dust storage groove, keeps retaining segment wall smooth clean.
In a kind of above-mentioned crane cable speed-limiting device, it is provided with the pulley body some on the outside of piston
Air vent.
Brief description of the drawings
Fig. 1 is the overall structure diagram of this speed-limiting device.
Fig. 2 is the sectional view on A directions in Fig. 1.
In figure, 11, pulley body；12nd, mounting hole；13rd, air vent；2nd, support shaft；21st, retaining segment；22nd, dust storage groove；23、
Cable stopper slot；24th, regulator hole；3rd, spring bearing；41st, chute；42nd, brake(-holder) block；43rd, wearing layer；51st, valve opening；52nd, valve body；
53rd, valve pocket；54th, valve block；55th, exocoel；56th, inner chamber；57th, piston；58th, connecting plate；59th, via hole；61st, regulator bolts；62nd, it is multiple
Position spring；63rd, spout hole.
Embodiment
It is the specific embodiment of the present invention and with reference to accompanying drawing below, technical scheme is further described,
But the present invention is not limited to these embodiments.
As depicted in figs. 1 and 2, this speed-limiting device includes pulley body 11, and the middle part of pulley body 11 offers an installation
Hole 12, a support shaft 2 is inserted with mounting hole 12；The inwall of mounting hole 12 is respectively arranged with close to two openings of mounting hole 12
One spring bearing 3, is connected between support shaft 2 and pulley body 11 by spring bearing 3, and support shaft 2 is located at two spring bearings 3
Between one section be referred to as retaining segment 21, it is corresponding with the outer wall of retaining segment 21 to be evenly arranged with several on the inwall of mounting hole 12
Chute 41, slidably connect the brake(-holder) block 42 between the outer wall of retaining segment 21 with gap in chute 41, brake(-holder) block 42 with
One drive mechanism that can be slided when pulley body 11 rotates to the outer wall direction of retaining segment 21.
By two bearing bearings, by one section for the support shaft 2 of braking, i.e. retaining segment 21 is isolated, and prevents ash
The debris such as dirt disturb and influenceed braking ability.
Drive mechanism includes a valve opening 51 communicated with chute 41, has the valve body 52 of a bar shape, valve in valve opening 51
There is a valve pocket 53 in body 52, slidably connect a valve block 54 in valve pocket 53, valve pocket 53 is divided into positioned at valve block 54 by valve block 54
The exocoel 55 in outside and the piston 57 that an annular is slidably connected in the inner chamber 56 of the inner side of valve block 54, valve opening 51, piston 57
It is connected between brake(-holder) block 42 by the connecting plate 58 of an annular, it is outer that several connections is offered on the valve body 52 in the outside of piston 57
The via hole 59 of chamber 55 and valve opening 51；Hydraulic oil is filled with the valve opening 51 of the outer end of piston 57 and in valve pocket 53；Pulley rotates,
Valve block 54 slides in valve pocket 53 to the direction away from support shaft 2 under the action of the centrifugal force, so as to extrude the hydraulic pressure in valve pocket 53
Oil, via hole 59 turn on valve pocket 53 and valve opening 51, and piston 57, which is pressurized, drives brake(-holder) block 42 close to the outer wall direction of retaining segment 21,
Gear turbine RPM reaches setting value, when causing the hydraulic fluid pressure in valve opening 51 to be enough to drive the brake(-holder) block 42 contacted with brake axle,
Brake(-holder) block 42 carries out speed limit to pulley body 11, so completes the limitation for being rotated up to speed to pulley body 11.
Piston 57 and connecting plate 58 are cyclic structure, have preferable intensity and support stationarity, in braking procedure, system
The Impact direction of moving plate 42 is vertical with the stretching direction of connecting plate 58, and connecting plate 58 can resist the moment of torsion of vertical direction and constant
Shape；Drive mechanism can also promote brake(-holder) block 42 to the close cylinder of retaining segment 21.
Cable stopper slot 23 is offered on the outer peripheral face of pulley body 11；A tune is offered on the inwall of cable stopper slot 23
Hole 24 is pressed, regulator hole 24 is threaded with the regulator bolts 61 stretched into valve pocket 53；Outwardly or inwardly revolved by regulating bolt
Enter or screw out, the pressure of the hydraulic oil in valve pocket 53 can be controlled, so as to the maximum speed limit of adjustable pulley, the liquid in valve pocket 53
Cleaning in the replacing and valve pocket 53 of force feed, it can also be realized by regulator hole 24.
A back-moving spring 62 is connected between the inner of regulator bolts 61 and the outer end of valve block 54；Back-moving spring 62, which is in, to be drawn
State is stretched, movable valve block 54 can be pushed away and inwardly resetted, makes valve block 54 by centrifugal action while needs to resist the pressure of back-moving spring 62
Power, makes speed limit more accurate, also makes higher by the sensitivity of the progress speed limit regulation of regulator bolts 61 and reliability；Hydraulic oil
Pressure and spring reset force it is dual valve block 54 is resetted, realize that brake force is synchronous with pulley speed.
The spout hole 63 of some communication with cavity 56 and exocoel 55 is offered on valve block 54；On vibrating reed outside retaining segment 21
There is wearing layer 43 on the one side of wall.
Some dust storage grooves being distributed in the axial direction 22 are offered on the outer wall of retaining segment 21；Section hydraulic oil passes through work
Gap between plug 57 and valve body 52, penetrate on brake(-holder) block 42, coefficient of friction between brake(-holder) block 42 and retaining segment 21 is diminished, lead to
The setting of dust storage groove 22 is crossed, the section hydraulic oil can be squeezed into dust storage groove 22, is also stored up the bits end that brake(-holder) block 42 is formed
Exist in dust storage groove 22, keep the wall of retaining segment 21 smooth clean.
Some air vents 13 positioned at the outside of piston 57 are provided with pulley body 11.
It should be noted that：Arrestment mechanism can be by hydraulic control, can be by hydraulic pressure and back-moving spring group
Close realizing or separately through back-moving spring realization.
Specific embodiment described herein is only to spirit explanation for example of the invention.Technology belonging to the present invention is led
The technical staff in domain can be made various modifications or supplement to described specific embodiment or be replaced using similar mode
Generation, but without departing from the spiritual of the present invention or surmount scope defined in appended claims.
Claims (9)
1. a kind of crane cable speed-limiting device, it is characterised in that this speed-limiting device includes pulley body (11), the pulley sheet
A mounting hole (12) is offered in the middle part of body (11), a support shaft (2) is inserted with the mounting hole (12)；The mounting hole
(12) inwall is respectively arranged with a spring bearing (3), the support shaft (2) and pulley close to two openings of mounting hole (12)
It is connected between body (11) by spring bearing (3), one section between two spring bearings (3) of support shaft (2) is referred to as
Retaining segment (21), several chutes corresponding with the outer wall of retaining segment (21) are evenly arranged with the inwall of the mounting hole (12)
(41) brake(-holder) block (42) between the outer wall of retaining segment (21) with gap, is slidably connected in the chute (41), it is described
Brake(-holder) block (42) and a drive mechanism that can be slided when pulley body (11) rotates to the outer wall direction of retaining segment (21).
2. a kind of crane cable speed-limiting device according to claim 1, it is characterised in that the drive mechanism includes one
The valve opening (51) communicated with chute (41), the interior valve body (52) with a bar shape of the valve opening (51), the valve body (52) are interior
With a valve pocket (53), a valve block (54) is slidably connected in the valve pocket (53), the valve block (54) separates valve pocket (53)
For the exocoel (55) on the outside of valve block (54) and the inner chamber (56) on the inside of valve block (54), the interior company of slip of the valve opening (51)
The piston (57) of an annular is connected to, is connected between the piston (57) and brake(-holder) block (42) by the connecting plate (58) of an annular,
The via hole (59) of several connection exocoels (55) and valve opening (51) is offered on valve body (52) on the outside of the piston (57)；Institute
State in the valve opening (51) of piston (57) outer end and be filled with hydraulic oil in valve pocket (53).
A kind of 3. crane cable speed-limiting device according to claim 1 or claim 2, it is characterised in that the pulley body (11)
Outer peripheral face on offer cable stopper slot (23).
4. a kind of crane cable speed-limiting device according to claim 3, it is characterised in that the cable stopper slot (23)
A regulator hole (24) is offered on inwall, the regulator hole (24) is threaded with the regulator bolts stretched into valve pocket (53)
(61)。
A kind of 5. crane cable speed-limiting device according to claim 4, it is characterised in that the regulator bolts (61) it is interior
A back-moving spring (62) is connected between end and the outer end of valve block (54).
6. a kind of crane cable speed-limiting device according to claim 5, it is characterised in that offered on the valve block (54)
Some communication with cavity (56) and the spout hole (63) of exocoel (55).
7. a kind of crane cable speed-limiting device according to claim 6, it is characterised in that close to braking on the vibrating reed
There is wearing layer (43) on the one side of section (21) outer wall.
A kind of 8. crane cable speed-limiting device according to claim 7, it is characterised in that the outer wall of the retaining segment (21)
On offer some dust storage grooves being distributed in the axial direction (22).
9. a kind of crane cable speed-limiting device according to claim 8, it is characterised in that set on the pulley body (11)
It is equipped with some air vents (13) on the outside of piston (57).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711261655.4A CN107758553B (en) | 2017-12-04 | 2017-12-04 | Crane cable speed limiting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711261655.4A CN107758553B (en) | 2017-12-04 | 2017-12-04 | Crane cable speed limiting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107758553A true CN107758553A (en) | 2018-03-06 |
| CN107758553B CN107758553B (en) | 2023-07-07 |
Family
ID=61276614
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711261655.4A Active CN107758553B (en) | 2017-12-04 | 2017-12-04 | Crane cable speed limiting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107758553B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111762707A (en) * | 2020-08-14 | 2020-10-13 | 王小庆 | Hoist for ship traction hoisting |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111762707A (en) * | 2020-08-14 | 2020-10-13 | 王小庆 | Hoist for ship traction hoisting |
| CN111762707B (en) * | 2020-08-14 | 2021-10-15 | 魏锐祥 | Hoist for ship traction hoisting |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107758553B (en) | 2023-07-07 |
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