CN207632369U - A kind of speed regulating structure in crane cable speed-limiting device - Google Patents
A kind of speed regulating structure in crane cable speed-limiting device Download PDFInfo
- Publication number
- CN207632369U CN207632369U CN201721674797.9U CN201721674797U CN207632369U CN 207632369 U CN207632369 U CN 207632369U CN 201721674797 U CN201721674797 U CN 201721674797U CN 207632369 U CN207632369 U CN 207632369U
- Authority
- CN
- China
- Prior art keywords
- valve
- block
- speed
- piston
- offered
- 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.)
- Expired - Fee Related
Links
Landscapes
- Actuator (AREA)
Abstract
The utility model provides the speed regulating structure in a kind of crane cable speed-limiting device, and speed-limiting device includes pulley body, and a mounting hole is offered in the middle part of pulley body, a support shaft is inserted in mounting hole；A valve block is slidably connected in valve chamber, valve chamber is divided into the exocoel on the outside of valve block and the inner cavity on the inside of valve block by valve block, the piston of an annular is slidably connected in valve opening, it is connected by the connecting plate of an annular between piston and brake(-holder) block, the via hole of several connection exocoels and valve opening is offered on the valve body on the outside of piston；It is filled with hydraulic oil in the valve opening of piston outer end and in valve chamber；Cable limiting slot is offered on the peripheral surface of pulley body；A regulator hole is offered on the inner wall of cable limiting slot, regulator hole is threaded with the regulator bolts stretched into valve chamber.The utility model has many advantages, such as that simple in structure, speed governing is uniform.
Description
Technical field
The utility model belongs to field of mechanical technique, the speed regulating structure being related in a kind of crane cable speed-limiting device.
Background technology
Cable crane refers to that bearing carrier is maked somebody a mere figurehead using flexible cable as large span, is existed for the loading trolley of suspension heavy weight
It is moved back and forth on carrying rope, has the function of vertical transport and horizontal transport.For within the scope of larger space, being risen to cargo
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 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, it will be big
The big security performance and endurance quality for improving cable crane is also capable of the safety monitoring of significantly smaller crane and automatically controlled is set
It applies, to simplify its structure, improves reliability.
Invention content
The purpose of this utility model is the existing above problem in view of the prior art, provides a kind of crane cable speed limit
Speed regulating structure in device, technical problem to be solved in the utility model are how the speed limit of pulley to be adjusted.
The purpose of this utility model can be realized by following technical proposal：A kind of tune in crane cable speed-limiting device
Fast structure, which is characterized in that speed-limiting device includes pulley body, and a mounting hole is offered in the middle part of the pulley body, described
A support shaft is inserted in mounting hole；It is corresponding with the outer wall of retaining segment that several are evenly arranged on the inner wall of the mounting hole
Sliding slot, slidably connects the brake(-holder) block with gap between the outer wall of retaining segment in the sliding slot, the brake(-holder) block and one
The driving mechanism that can be slided to the outer wall direction of retaining segment when pulley body is rotated；The driving mechanism includes one and slides
The valve opening that slot communicates, the interior valve body with a bar shape of the valve opening, the valve body is interior to have a valve chamber, is slided in the valve chamber
It is connected with a valve block, valve chamber is divided into the exocoel on the outside of valve block and the inner cavity on the inside of valve block by the valve block, described
The piston that an annular is slidably connected in valve opening is connected between the piston and brake(-holder) block by the connecting plate of an annular, described
The via hole of several connection exocoels and valve opening is offered on valve body on the outside of piston；In the valve opening of the piston outer end and valve chamber
Inside it is filled with hydraulic oil；Cable limiting slot is offered on the peripheral surface of the pulley body；The inner wall of the cable limiting slot
On offer a regulator hole, the regulator hole is threaded with the regulator bolts stretched into valve chamber.
It, can be with the pressure of the hydraulic oil of control valve intracavitary, to adjust by adjusting bolt outwardly or inwardly precession or back-out
The maximum speed limit of pulley is saved, the cleaning in the replacement and valve chamber of the hydraulic oil in valve chamber can also be realized by regulator hole.
Pulley rotates, and valve block is slided in valve chamber to the direction far from support shaft under the action of the centrifugal force, to squeezing valve
Valve chamber and valve opening is connected in the hydraulic oil of intracavitary, via hole, and piston, which is pressurized, drives brake(-holder) block close to the outer wall direction of retaining segment, gear
Turbine RPM reaches setting value, when the hydraulic fluid pressure in valve opening being caused to be enough that brake(-holder) block is driven to contact 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 process, brake(-holder) block
Impact direction is vertical with the stretching direction of connecting plate, and connecting plate can resist the torque of vertical direction and indeformable.
Driving mechanism can also be to push brake(-holder) block to the close cylinder of retaining segment.
In speed regulating structure in a kind of above-mentioned crane cable speed-limiting device, the inner end of the regulator bolts and valve block
Outer end between be connected with a resetting spring.
Resetting spring is in tensional state, valve block can be pushed inwardly to reset, and makes valve block by centrifugation force effect while needing
Resist resetting spring pressure, keep speed limit more accurate, also make by regulator bolts carry out speed limit adjusting sensitivity and can
By spending higher.
The pressure of the hydraulic oil and reset force of spring is dual is resetted to valve block realizes the same of brake force and pulley speed
Step.
In speed regulating structure in a kind of above-mentioned crane cable speed-limiting device, it is provided in the pulley body several
Ventilation hole on the outside of piston.
Description of the drawings
Fig. 1 is the overall structure diagram of this speed-limiting device.
Fig. 2 is the sectional view on the directions A-A in Fig. 1.
In figure, 11, pulley body；12, mounting hole；13, ventilation hole；2, support shaft；21, retaining segment；22, dust storage groove；
23, cable limiting slot；24, regulator hole；3, spring bearing；41, sliding slot；42, brake(-holder) block；43, wearing layer；51, valve opening；52, valve
Body；53, valve chamber；54, valve block；55, exocoel；56, inner cavity；57, piston；58, connecting plate；59, via hole；61, regulator bolts；
62, resetting spring；63, spout hole.
Specific implementation mode
It is specific embodiment of the utility model and in conjunction with attached drawing below, the technical solution of the utility model is made further
Description, but the utility model is not limited to these examples.
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 is inserted with a support shaft 2 in mounting hole 12；12 inner wall of mounting hole 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
One section between 3 is referred to as retaining segment 21, and the outer wall pair of several and retaining segment 21 is evenly arranged on the inner wall of mounting hole 12
The sliding slot 41 answered slidably connects the brake(-holder) block 42 with gap, brake(-holder) block 42 between the outer wall of retaining segment 21 in sliding slot 41
The driving mechanism that can be slided to the outer wall direction of retaining segment 21 when pulley body 11 is rotated with one.
By two bearing bearings, by one section for the support shaft 2 of braking, i.e. retaining segment 21 is isolated, and ash is prevented
The sundries such as dirt interfere and influence braking ability.
Driving mechanism includes a valve opening communicated with sliding slot 41 51, has the valve body 52 of a bar shape, valve in valve opening 51
There is a valve chamber 53 in body 52, slidably connect a valve block 54 in valve chamber 53, valve chamber 53 is divided into positioned at valve block 54 by valve block 54
The exocoel 55 in outside and inner cavity 56 positioned at the inside of valve block 54 slidably connect the piston 57 of an annular, piston 57 in valve opening 51
It is connected by the connecting plate 58 of an annular between brake(-holder) block 42, several connections is offered on the valve body 52 in 57 outside of piston
The via hole 59 of exocoel 55 and valve opening 51；It is filled with hydraulic oil in the valve opening 51 of 57 outer end of piston and in valve chamber 53；Pulley revolves
Turn, valve block 54 is slided in valve chamber 53 to the direction far from support shaft 2 under the action of the centrifugal force, to squeeze the liquid in valve chamber 53
Valve chamber 53 and valve opening 51 is connected in pressure oil, via hole 59, and piston 57, which is pressurized, drives outer wall direction of the brake(-holder) block 42 to retaining segment 21
Close, gear turbine RPM reaches setting value, and the hydraulic fluid pressure in valve opening 51 is caused to be enough that brake(-holder) block 42 is driven to connect with brake axle
When touching, 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 process, system
42 Impact direction of movable plate is vertical with the stretching direction of connecting plate 58, and connecting plate 58 can resist the torque of vertical direction and constant
Shape；Driving mechanism can also be to push brake(-holder) block 42 to the close cylinder of retaining segment 21.
Cable limiting slot 23 is offered on the peripheral surface of pulley body 11；One is offered on the inner wall of cable limiting slot 23
Regulator hole 24, regulator hole 24 are threaded with the regulator bolts 61 stretched into valve chamber 53；Outwardly or inwardly by adjusting bolt
Precession or back-out can control the pressure of the hydraulic oil in valve chamber 53, to the maximum speed limit of adjustable pulley, in valve chamber 53
Cleaning in the replacement and valve chamber 53 of hydraulic oil can also be realized by regulator hole 24.
It is connected with a resetting spring 62 between the inner end and the outer end of valve block 54 of regulator bolts 61；Resetting spring 62 is in
Tensional state can push valve block 54 inwardly to reset, and make valve block 54 by centrifugation force effect while needing to resist resetting spring 62
Pressure, keeps speed limit more accurate, also makes sensitivity and reliability higher that speed limit adjusting is carried out by regulator bolts 61；Hydraulic pressure
The reset force of oily pressure and spring is dual to reset valve block 54, realizes that brake force is synchronous with pulley speed.
The spout hole 63 of several connection inner cavities 56 and exocoel 55 is offered in valve block 54；On vibrating reed outside retaining segment 21
There is wearing layer 43 on the one side of wall.
Several 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
Gap between piston 57 and valve body 52 is penetrated on brake(-holder) block 42, and friction coefficient between brake(-holder) block 42 and retaining segment 21 is made to become
It is small, by the setting of dust storage groove 22, which can be squeezed into dust storage groove 22, the bits for also being formed brake(-holder) block 42
End is stored in dust storage groove 22, keeps 21 wall surface of retaining segment smooth clean.
Several ventilation holes 13 positioned at 57 outside of piston are provided in pulley body 11.
It should be noted that：Arrestment mechanism can be by hydraulic control, can be by hydraulic pressure and resetting spring group
Realization is closed, can also be to be realized separately through resetting spring.
The specific embodiments described herein are merely examples of the spirit of the present invention.The utility model institute
Belonging to those skilled in the art can make various modifications or additions to the described embodiments or using similar
Mode substitute, but without departing from the spirit of the present application or beyond the scope of the appended claims.
Claims (3)
1. the speed regulating structure in a kind of crane cable speed-limiting device, which is characterized in that speed-limiting device includes pulley body (11),
A mounting hole (12) is offered in the middle part of the pulley body (11), and a support shaft (2) is inserted in the mounting hole (12)；Institute
It states and is evenly arranged with several sliding slots (41) corresponding with the outer wall of retaining segment (21), the sliding slot on the inner wall of mounting hole (12)
(41) brake(-holder) block (42) with gap, the brake(-holder) block (42) and one between the outer wall of retaining segment (21) are slidably connected in
A driving mechanism that can be slided to the outer wall direction of retaining segment (21) when pulley body (11) are rotated；The driving mechanism packet
A valve opening (51) communicated with sliding slot (41) is included, there is the valve body (52) of a bar shape, the valve body in the valve opening (51)
(52) there is a valve chamber (53) in, slidably connect a valve block (54) in the valve chamber (53), the valve block (54) is by valve chamber
(53) exocoel (55) being divided on the outside of valve block (54) and the inner cavity (56) on the inside of valve block (54), the valve opening (51)
The piston (57) for inside slidably connecting an annular passes through the connecting plate of an annular between the piston (57) and brake(-holder) block (42)
(58) it is connected, the conducting of several connection exocoel (55) and valve opening (51) is offered on the valve body (52) on the outside of the piston (57)
Hole (59)；It is filled with hydraulic oil in the valve opening (51) of piston (57) outer end and in valve chamber (53)；The pulley body
(11) cable limiting slot (23) is offered on peripheral surface；A regulator hole is offered on the inner wall of the cable limiting slot (23)
(24), the regulator hole (24) is threaded with the regulator bolts (61) stretched into valve chamber (53).
2. the speed regulating structure in a kind of crane cable speed-limiting device according to claim 1, which is characterized in that the pressure regulation
It is connected with a resetting spring (62) between the inner end and the outer end of valve block (54) of bolt (61).
3. the speed regulating structure in a kind of crane cable speed-limiting device according to claim 1 or claim 2, which is characterized in that described
Several ventilation holes (13) on the outside of piston (57) are provided in pulley body (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721674797.9U CN207632369U (en) | 2017-12-04 | 2017-12-04 | A kind of speed regulating structure in crane cable speed-limiting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721674797.9U CN207632369U (en) | 2017-12-04 | 2017-12-04 | A kind of speed regulating structure in crane cable speed-limiting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207632369U true CN207632369U (en) | 2018-07-20 |
Family
ID=62855353
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721674797.9U Expired - Fee Related CN207632369U (en) | 2017-12-04 | 2017-12-04 | A kind of speed regulating structure in crane cable speed-limiting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207632369U (en) |
-
2017
- 2017-12-04 CN CN201721674797.9U patent/CN207632369U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201176342Y (en) | Winding device | |
| CN105973600B (en) | A kind of multifunctional water lubricating thrust bearing systems test bed | |
| CN209839001U (en) | Oil film clutch with automatic oil supply device | |
| CN207699096U (en) | A kind of crane cable speed-limiting device | |
| CN109441692A (en) | A kind of rotating mechanism end double-control apparatus | |
| CN204493168U (en) | The Slipper coupling of a kind of axial piston pump and motor electromagnetic force pretension | |
| CN110369161A (en) | A kind of high centrifugal dewatering equipment of safety coefficient for chemical industry | |
| US4452430A (en) | Safety device for lowering persons and loads | |
| CN207632369U (en) | A kind of speed regulating structure in crane cable speed-limiting device | |
| CN205419374U (en) | Wire rope traction testing arrangement | |
| CN110763486B (en) | Rotational inertia simulation device with load | |
| CN207514130U (en) | A kind of braking power drive mechanism in crane cable speed-limiting device | |
| CN207632368U (en) | A kind of storage dirt structure in crane cable speed-limiting device | |
| CN108382791A (en) | Belt stretcher | |
| CN207514114U (en) | A kind of brake structure in crane cable speed-limiting device | |
| CN107758553A (en) | A kind of crane cable speed-limiting device | |
| CN105435381B (en) | A kind of automatic control uniform descent device | |
| CN104528577A (en) | Spiral top extension device | |
| CN104495586B (en) | Pneumatic telescopic elevator | |
| CN207229672U (en) | A kind of roller chain with self-lubricating function | |
| CN206599335U (en) | A kind of elevator speed-limiting protective device | |
| CN113482579B (en) | Self-adjusting consumption-reducing energy-saving device of oil pumping unit | |
| CN106513098B (en) | Single-Cylinder Hydraulic Cone Crusher middle friction tray limiting device and hydro cone-crusher | |
| CN110044614B (en) | Mechanical type periodic cycle dynamic load experiment loading device | |
| CN108006142A (en) | A kind of adjustable hydraulic damping buffer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180720 Termination date: 20201204 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |