CN206126784U - Quick elevator bucket hydraulic pressure locking system and use hook and ladder of this system - Google Patents
Quick elevator bucket hydraulic pressure locking system and use hook and ladder of this system Download PDFInfo
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- CN206126784U CN206126784U CN201620858077.7U CN201620858077U CN206126784U CN 206126784 U CN206126784 U CN 206126784U CN 201620858077 U CN201620858077 U CN 201620858077U CN 206126784 U CN206126784 U CN 206126784U
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- ladder
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- brake
- synchronous belt
- bucket hydraulic
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Abstract
The utility model discloses a does quick elevator bucket hydraulic pressure locking system fix hydraulic motor (2), balanced valve (3), switching -over valve (1 on motor support (1) 1 )And control ladder frame extends guide rail (5) flexible synchronous belt drive mechanism (4), at least one stopper (6) that have the locking function, the direct cartridge of stopper (6) input shaft on hydraulic motor (2), output shaft drive, locking synchronous belt drive mechanism (4) thus control ladder frame extends stretching out and drawing back at will, stopping of guide rail (5), wherein still disclose the hook and ladder of this system of use, the utility model discloses having set up the stopper and can having guaranteed that ladder frame extends the guide rail and can stop in the optional position when flexible, effective locking synchronous belt drive mechanism prevents that the ladder frame from extending the guide rail and appearing sliding, guarantees the traversing safe and reliable that goes up and down, and secondary damage's emergence is avoided in the danger that can not meet accident during the dolly about the personnel in the protection lift dolly.
Description
Technical field
This utility model is related to a kind of hook and ladder elevator scoop hydraulic system, specifically a kind of fast lifting bucket hydraulic lock
Clamping system and the hook and ladder using the system.
Background technology
Large-scale hook and ladder is provided with scalable aerial ladder, and on aerial ladder, design and installation is for the lifting of Quick rescue little
Car, forms the fast life-saving passage similar to elevator;The general hook and ladder with lift cart is arranged in a section aerial ladder afterbody
There are ladder extensible track, lift cart to drop to by ladder extensible track after leaving aerial ladder and be close to ground, be available for being rescued personnel
Lift cart safe escape is taken to ground from high-altitude, can be withdrawn with the setting lifesaving appliance on lift cart and be hurted sb.'s feelings
Member.
Ladder extensible track has two kinds of type of drive at present, and one kind is Motor drive, and one kind is by fluid motor-driven；Mesh
It is front mostly to adopt fluid motor-driven mode.
When lift cart operation, the synchronous belt drive mechanism of fluid motor-driven drives ladder extensible track as needed
After extending out to appropriate location, cut-out motor-controlled pressure oil, hydraulic motor rely on liquid by balanced valve locking, synchronous belt drive mechanism
Pressure motor and balanced valve locking.
The ladder extensible track fluid motor-driven system of existing hook and ladder, by pipeline arrange balanced valve or
Person arranges balanced valve to realize motor control for brake on motor；
Concrete structure is as shown in Figure 1：By motor bearing 1, hydraulic motor 2, balanced valve 3, synchronous belt drive mechanism 4 and ladder
Frame extensible track 5 is collectively constituted；
The working method of said structure is as shown in Figure 2：Hydraulic motor 2 is fixed on motor bearing 1, and balanced valve 3 is directly pacified
It is mounted on hydraulic motor 2, hydraulic oil Jing reversal valves 1-1 commutations when ladder extensible track 5 stretches out, hydraulic oil is by oil-out P Jing A mouths
To the V1 hydraulic fluid ports of balanced valve 3, the A mouths of hydraulic motor 2, the output shaft rotation of hydraulic motor 2 are flowed out to from the C1 hydraulic fluid ports of balanced valve 3
Drive synchronous belt drive mechanism 4 to move, control the extending action of ladder extensible track 5；
Hydraulic oil Jing reversal valves 1-1 commutations when ladder extensible track 5 is retracted, by the V2 of oil-out P Jing B mouths to balanced valve 3
Hydraulic fluid port, flows out to the B mouths of hydraulic motor 2,2 output shaft rotation driving toothed belt transmission of hydraulic motor from the C2 hydraulic fluid ports of balanced valve 3
Mechanism 4 moves, and controls the retract action of ladder extensible track 5.
When ladder extensible track 5 needs to stop in position, reversal valve 1-1 returns to middle position, its rapid pressure release of A, B mouth,
When below the pressure drop to 3 minimum control pressure of balanced valve, 3 valve element of balanced valve closes balanced valve 3 under action of reset spring
Valve port, cuts off the oil inlet and oil return pressure of hydraulic motor 2, and synchronous belt drive mechanism 4 drives 5 stop motion of ladder extensible track.
The system of this kind of version is had the disadvantage that in utilization：
1st, when ladder extensible track 5 stops, reversal valve 1-1 is switched to middle position, and balanced valve 3 cuts out, and hydraulic motor 2 stops fortune
Turn to fully rely on 3 locking of balanced valve, lift cart is close to inertia force when ground stops and acts on ladder extensible track 5, band hydrodynamic
3 drive shaft of pressure motor is impacted to balanced valve 3, and balanced valve 3 may be caused to leak, and ladder extensible track 5 will occur sliding,
Close in lift cart and double slide injury will occur when ground is stopped, it is impossible to when ensureing in lift cart the upper and lower dolly of personnel
Safety；
2nd, due to due to processing and manufacturing itself, always there is certain leakage inside to hydraulic motor 2, and ladder extensible track 5 is grown
Time is unreliable by 2 locking of hydraulic motor, and the sliding of ladder extensible track 5, even hydraulic pressure can occur during long-time locking
Motor 2 trackslips, it is impossible to which locking synchronous belt drive mechanism 4, ladder extensible track 5 arbitrarily cannot stop, it is impossible to meeting to use and wants
Ask.
The content of the invention
This utility model provides a kind of fast lifting bucket hydraulic lock system and the hook and ladder using the system, can
Ensure that ladder extensible track can be stopped when flexible at an arbitrary position, effective locking synchronous belt drive mechanism prevents ladder from extending
There is sliding in guide rail, it is ensured that lift cart is safe and reliable to operation, will not occur when protecting the upper and lower dolly of personnel in lift cart
It is unexpected dangerous, it is to avoid the generation of secondary injury.
To achieve these goals, the technical solution adopted in the utility model is：A kind of fast lifting bucket hydraulic locking system
System, including：It is same that hydraulic motor, balanced valve, reversal valve and the control ladder extensible track being fixed on motor bearing stretches
Step tape handler；
It also includes：
At least one brake with locking function；The brake input shaft is directly inserted on hydraulic motor, defeated
Shaft drives, locking synchronous belt drive mechanism is stretched, stopped so as to controlling the random of ladder extensible track.
Further, described brake foot is on the brake support frame on a section ladder.
Described balanced valve also includes a control port C3, the control mouth X phase of described control port C3 and brake
Pass to the work or closing of control brake.
Described control port C3 is arranged between balanced valve V1 and V2 oil circuit.
It is also equipped with rotarily driving ladder extensible track and retracting in drive motor on A, B mouth of described reversal valve running into obstacle
When, effectively prevent synchronous belt drive mechanism because the pressure limiting valve I and drive motor of the excessive damage of stress rotarily drive ladder extension
Guide rail stretches out when running into obstacle, effectively prevents ladder extensible track from the pressure limiting valve II of macrobending damage is crossed because of stress.
Described reversal valve, pressure limiting valve I, pressure limiting valve II are the valve group that is integrated in one.
Wherein, described reversal valve is three position four-way directional control valve.
This utility model is also disclosed a kind of hook and ladder, including a kind of above-mentioned fast lifting bucket hydraulic lock system.
Operation principle of the present utility model：During work, hydraulic oil Jing balanced valves drive hydraulic motor, control pressure oil to open
Brake, hydraulic motor output shaft drive brake, brake output shaft to drive the synchronous belt drive mechanism band of belt wheel drive
Dynamic ladder extensible track is stretched, brake output shaft locking when extension action stops.
Compared with existing ladder extensible track fluid motor-driven system, this utility model has advantages below：
1st, ladder extensible track extension action stops, by the brake locking synchronous belt drive mechanism being fixed on ladder,
The device belongs to mechanical locking, safe and stable, reliable, can effectively prevent guide rail from sliding, securing elongated guide rail extension elongation occur
The safe and reliable of lift cart work opportunity structure operation is can guarantee that, personal security is protected；
2nd, the system structure optimization, hydraulic motor control balanced valve arrange brake control port, when hydraulic system occurs
Hydraulic leak, do not affect brake safe lock, effectively can prevent lift cart occur sliding, it is ensured that lift cart personnel
Safety, prevents the generation of unexpected injury；
3rd, two pressure limiting valves are set in reversal valve A, B mouth, can not only effectively prevent the system pressure caused because of extraneous factor
Power is mutated, and causes synchronous belt drive mechanism and ladder extensible track to destroy because stress is excessive or bend the fortuitous events such as damage
Occur, and there can be repairing effect to motor with the hydraulic shock in relieving system pipeline；Three is integrated in one simultaneously, leads to
So integrated pipe joint transition connection that can be in reduction system is crossed, the complexity of system pipeline design, maximum journey is reduced
The mistake proofing design for realizing hydraulic system of degree, improves safety, reliability and the economy of product.
Description of the drawings
Fig. 1 is existing ladder extensible track fluid motor-driven system structure diagram；
Fig. 2 is existing ladder extensible track fluid motor-driven system hydraulic schematic diagram；
Fig. 3 is this utility model liquid structural representation；
Fig. 4 is this utility model hydraulic principle schematic diagram.
In figure：1st, motor bearing, 2, hydraulic motor, 3, balanced valve, 4, synchronous belt drive mechanism, 5, ladder extensible track,
6th, brake, 1-1, reversal valve, 1-2, pressure limiting valve I, 1-3, pressure limiting valve II.
Specific embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings.
On the basis of accompanying drawing 3, the left and right, upper and lower of accompanying drawing 3, center, inner side, outside are this utility model to this utility model
Left and right, upper and lower, center, inner side, outside.It should be noted that：Unless specifically stated otherwise, illustrate otherwise in the present embodiment
The positioned opposite of part, numerical value etc. be not limited to scope of the present utility model.
As shown in figure 3, a kind of fast lifting bucket hydraulic lock system, it includes：The hydraulic pressure horse being fixed on motor bearing 1
Up to 2, balanced valve 3,5 flexible synchronous belt drive mechanism 4 of reversal valve 1-1 and control ladder extensible track；
On the basis of original, the system also includes：
At least one brake 6 with locking function；6 input shaft of the brake is directly inserted on hydraulic motor 2,
Output shaft drives, locking synchronous belt drive mechanism 4 is stretched, stopped so as to controlling the random of ladder extensible track 5.
Wherein, described 6 bottom of brake is on the brake support frame on a section ladder.
As shown in Figure 4：Balanced valve 3 for the work or closing of control brake 6, balanced valve 3 V1 and V2 oil circuit it
Between also include a control port C3, described control port C3 communicated with control mouth X of brake 6.
Further, as shown in Figure 4：I 1-2 of pressure limiting valve and pressure limiting valve II are also equipped with A, B mouth of described reversal valve 1-1
1-3；I 1-2 of pressure limiting valve therein drive motor 2 rotarily drive ladder extensible track 5 retract run into obstacle when, effectively can prevent
Only synchronous belt drive mechanism 4 is damaged because stress is excessive；
II 1-3 of pressure limiting valve drive motor 2 rotarily drive ladder extensible track 5 stretch out run into obstacle when, effectively can prevent
Only ladder extensible track 5 is damaged because stress crosses macrobending, and I 1-2 of pressure limiting valve and II 1-3 of pressure limiting valve can be with relieving system pipelines
In hydraulic shock, have repairing to act on hydraulic motor 2.
Further, described reversal valve 1-1, I 1-2 of pressure limiting valve, II 1-3 of pressure limiting valve are the valve group being integrated in one, and are passed through
So integrated pipe joint transition connection that can be in reduction system, reduces the complexity of system pipeline design, at utmost
The mistake proofing design for realizing hydraulic system, improve the safety of product, reliability and economy；Therein, reversal valve 1-1 is three
Position and four-way reversing valve, it is simple effective.
This utility model also includes a kind of hook and ladder simultaneously, including the quick liter of any above-mentioned form
Drop bucket hydraulic lock system.
The control principle of the system is as shown in figure 4, balanced valve 3 increased 6 control port C3 of control brake, ladder extension
During 5 operation of guide rail, pressure oil is opened Jing balanced valves 3 and drives hydraulic motor 2, needs to first pass through the C3 hydraulic fluid ports of balanced valve 3 and braking
6 control mouth X of device, open brake 6, hydraulic motor 2 start rotation, 2 Driven by Coaxial brake 6 of hydraulic motor, brake 6 it is defeated
Shaft drives synchronous belt drive mechanism 4 to drive ladder extensible track 5 to move.
When ladder extensible track 5 stops operation, reversal valve 1-1 switches to middle position, and hydraulic motor 2 stops operating, braking
The control mouth X reduced pressure of device 6, brake 6 are closed, and will export shaft mechanical locking, and then by 4 locking of synchronous belt drive mechanism,
As brake 6 is mechanical type locking and locking, in the hydraulic leak that hydraulic system occurs, the safety lock of brake 6 is not affected
Only, can effectively prevent lift cart from sliding occurring, it is ensured that lift cart personal security, prevent the generation of unexpected injury.
In sum, had the advantages that using this utility model：
1st, 5 extension action of ladder extensible track stops, by the 6 locking synchronous belt drive mechanism of brake being fixed on ladder
5, the device belongs to mechanical locking, safe and stable, reliable, can effectively prevent ladder extensible track 5 from sliding occur, and ladder extends
5 extension elongation of guide rail can guarantee that the safe and reliable of lift cart work opportunity structure operation, protect personal security；
2nd, the system structure optimization, balanced valve 3 are provided with 6 control port C3 of control brake, when hydraulic system generation
Hydraulic leak, as brake 6 is mechanical locking, therefore does not affect 6 safe lock of brake, can effectively prevent lift cart
Generation sliding, it is ensured that lift cart personal security, prevents the generation of unexpected injury；
3rd, A, B mouth in reversal valve 1-3 arranges II 1-3 of I 1-2 of pressure limiting valve and pressure limiting valve, I 1-2 of pressure limiting valve and pressure limiting valve II
1-3 can not only effectively prevent the system pressure caused because of extraneous factor to be mutated, and cause synchronous belt drive mechanism 4 and ladder to extend
Guide rail 5 is destroyed because stress is excessive or bends the generation of the fortuitous events such as damage, and can be with the hydraulic pressure in relieving system pipeline
Impact, has repairing effect to hydraulic motor 2；
Simultaneously three is integrated in one, and by so integrated pipe joint transition connection that can be in reduction system, reduces
The complexity of system pipeline design, farthest realizes the mistake proofing design of hydraulic system, improves safety, the reliability of product
Property and economy.
It is obvious to a person skilled in the art that this utility model is not limited to the details of above-mentioned one exemplary embodiment, and
And in the case of without departing substantially from spirit or essential attributes of the present utility model, can realize that this practicality is new in other specific forms
Type.Therefore, no matter from the point of view of which point, embodiment all should be regarded as exemplary, and is nonrestrictive, this practicality is new
The scope of type is by claims rather than described above is limited, it is intended that the equivalency fallen in claim is contained
All changes in justice and scope are included in this utility model.Any reference in claim should not be considered as restriction
Involved claim.
The above, preferred embodiment only of the present utility model is not to limit this utility model, every according to this
Any trickle amendment, equivalent and improvement that the technical spirit of utility model is made to above example, should be included in this
Within the protection domain of utility model technical scheme.
Claims (8)
1. a kind of fast lifting bucket hydraulic lock system, it includes：It is fixed on motor bearing（1）On hydraulic motor（2）, balance
Valve（3）, reversal valve（1-1）And control ladder extensible track（5）Flexible synchronous belt drive mechanism（4）；
Characterized in that, it also includes：
At least one brake with locking function（6）；The brake（6）Input shaft is directly inserted into hydraulic motor（2）
Upper, output shaft drives, locking synchronous belt drive mechanism（4）So as to control ladder extensible track（5）It is arbitrarily flexible, stop.
2. a kind of fast lifting bucket hydraulic lock system according to claim 1, it is characterised in that described brake
（6）Bottom is on the brake support frame on a section ladder.
3. a kind of fast lifting bucket hydraulic lock system according to claim 2, it is characterised in that described balanced valve
（3）Also include a control port C3, described control port C3 and brake（6）Control mouth X phase pass to control brake
（6）Work or closing.
4. a kind of fast lifting bucket hydraulic lock system according to claim 3, it is characterised in that described control port
C3 is arranged on balanced valve（3）Between V1 and V2 oil circuits.
5. a kind of fast lifting bucket hydraulic lock system according to claim 2, it is characterised in that described reversal valve
（1-1）A, B mouth on be also equipped with drive motor（2）Rotarily drive ladder extensible track（5）When retraction runs into obstacle, it is effectively anti-
Only synchronous belt drive mechanism（4）Because of the pressure limiting valve I of the excessive damage of stress（1-2）And drive motor（2）Rotarily drive ladder to prolong
Stretch guide rail（5）Stretch out when running into obstacle, effectively prevent ladder extensible track（5）Because stress crosses the pressure limiting valve II of macrobending damage
（1-3）.
6. a kind of fast lifting bucket hydraulic lock system according to claim 5, it is characterised in that described reversal valve
（1-1）, pressure limiting valve I（1-2）, pressure limiting valve II（1-3）For the valve group being integrated in one.
7. a kind of fast lifting bucket hydraulic lock system according to claim 6, it is characterised in that described reversal valve
（1-1）For three position four-way directional control valve.
8. a kind of hook and ladder, it is characterised in that including arbitrary described a kind of fast lifting bucket hydraulic pressure in claim 1-7
Fastening system.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520657116 | 2015-08-27 | ||
| CN2015206571162 | 2015-08-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206126784U true CN206126784U (en) | 2017-04-26 |
Family
ID=58562803
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620858077.7U Active CN206126784U (en) | 2015-08-27 | 2016-08-09 | Quick elevator bucket hydraulic pressure locking system and use hook and ladder of this system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206126784U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106044664A (en) * | 2015-08-27 | 2016-10-26 | 徐州重型机械有限公司 | Quick lifting bucket hydraulic locking system and aerial ladder fire truck using system |
| CN107339268A (en) * | 2017-08-29 | 2017-11-10 | 广船国际有限公司 | A kind of gangway ladder control and drive system and its method |
-
2016
- 2016-08-09 CN CN201620858077.7U patent/CN206126784U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106044664A (en) * | 2015-08-27 | 2016-10-26 | 徐州重型机械有限公司 | Quick lifting bucket hydraulic locking system and aerial ladder fire truck using system |
| CN107339268A (en) * | 2017-08-29 | 2017-11-10 | 广船国际有限公司 | A kind of gangway ladder control and drive system and its method |
| CN107339268B (en) * | 2017-08-29 | 2019-03-22 | 广船国际有限公司 | A kind of control of gangway ladder and drive system and its method |
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