A kind of auxiliary tensioning of compensating rope of elevator and anti-jump system
Technical field
The present invention relates to elevators fields, and in particular to a kind of auxiliary tensioning of compensating rope of elevator and anti-jump system.
Background technology
Express elevator and super high speed elevator usually require setting compensation steel wire rope, because draging when effect is compensating elevator operation
The force difference value of traction sheave both sides caused by drawing the length variation of steel wire rope, trailing cable.The both ends of compensation steel wire rope are separately connected
Cage bottom and counterweight bottom, and be oriented to by the way that the tensioning wheel in well pit is arranged.To meet national standard GB7588-2003's
It is required that usually by tensioner designs at larger quality, the compensation necessary tensile force of steel wire rope is provided by its gravity, to protect
Demonstrate,prove the safety of steel wire rope operation;Tensioning wheel is equipped with anti-bouncing device simultaneously, and steel wire rope is compensated when elevator emergency action to offset
The impact force of generation.
When elevator high-speed cruising, due in hoistway air drag variation, elevator machine transmission etc. composite factors influence,
Compensation steel wire rope will produce certain shaking, and then cause the shake of car.Investigation and practice are found, are only come by tensioning wheel gravity
Although the compensation steel wire rope of tensioning can ensure that safety in operation, this tensile force are not sufficient to effectively inhibit steel wire rope
Shaking.The shaking of the especially high-speed cruising operating mode of long stroke, compensation steel wire rope stage casing becomes apparent.
It is therefore desirable to the compensation steel wire ropes to super high speed elevator or big hoisting depth elevator, add the tensile force of bigger,
To reduce its influence of the shaking to elevator comfort.It is distinctly understood that be only by way of increasing tensioning wheel quality it is unscientific,
Cost is not only increased, and it is inconvenient to bring greatly installation.
Invention content
In view of the above-mentioned deficiencies in the prior art, it is an object of the present invention to provide the auxiliary tensioning of a kind of compensating rope of elevator and anti-jump
System so that the dead weight of tensioner apparatus and structure space are smaller, and easy for installation.
Technical solution provided by the present invention is:
A kind of auxiliary tensioning of compensating rope of elevator and anti-jump system, including tensioner apparatus, wherein be additionally provided with hydraulic control
System, the hydraulic control system include Fuel Tanking Unit, can adjust the bidirectional hydraulic pump dress of hydraulic control system internal pressure
It sets, pipeline road and hydraulic cylinder;The hydraulic cylinder is located above tensioner apparatus, the piston rod and tensioner apparatus of hydraulic cylinder
Connection, the power intake of the bidirectional hydraulic pump installation and the wheel axis connection of tensioner apparatus, bidirectional hydraulic pump installation will store up
Hydraulic oil in oily device is respectively delivered to the rod chamber and rodless cavity of hydraulic cylinder by pipeline road.
In above-mentioned technical proposal, when ascending for elevator or downlink, compensating rope of elevator can drive tensioning wheel clockwise or counterclockwise
Rotation, since the power intake of bidirectional hydraulic pump installation and the wheel shaft of tensioner apparatus are rigidly connected, directly by tensioning wheel
Rotation function is converted into the power source of bidirectional hydraulic pump installation, does not need additional drive energy, effectively realizes the section of system
Energy;The power intake of bidirectional hydraulic pump installation is the input shaft that bidirectional variable hydraulic pump or bidirectional hydraulic pump.Secondly as adopting
It is that bidirectional hydraulic pump or bidirectional variable hydraulic pump, the change of the traffic direction of elevator do not interfere with the work of hydraulic control system
Use effect.
Hydraulic oil in Fuel Tanking Unit is had bar by bidirectional hydraulic pump installation by what pipeline road was respectively delivered to hydraulic cylinder
Chamber and rodless cavity form differential action mode so that the piston rod of hydraulic cylinder has implementation capacity straight down, acts on tensioning
Wheel apparatus, thus compensating rope of elevator simultaneously by the gravity of tensioner apparatus and the auxiliary tensile force of hydraulic cylinder, into one
Step is tensioned, its shaking is effectively inhibited.
As a preferred embodiment, the bidirectional hydraulic pump installation is bidirectional variable hydraulic pump.
As another preferred embodiment, the bidirectional hydraulic pump installation includes bidirectional hydraulic pump and pressure regulator valve, the bidirectional hydraulic
Pump out the pressure regulator valve branch for being equipped between the pipeline road and Fuel Tanking Unit at hydraulic fluid port end and adjusting hydraulic control system internal pressure.It adjusts
Pressure valve is used to control the maximum system pressure of hydraulic control system, and the flow of overflow returns to oil storage dress via the outlet of pressure regulator valve
It sets.
Preferably, the bidirectional hydraulic pumps out the pipeline road at hydraulic fluid port end and is equipped with pressure gauge, and pressure gauge is for observing liquid
Pressure inside pressure control system.
As an improvement, pipeline road upper edge hydraulic oil outbound course between bidirectional hydraulic pump and pressure regulator valve branch according to
It is secondary to be equipped with accumulator and the first check valve.When bidirectional hydraulic pumps damage or when for shortage of oil, accumulator maintains system in a short time
Pressure;And the first check valve plays the role of protecting accumulator, and accumulator is prevented to be under pressure impact.
Preferably, the pipeline road for being connected to rodless cavity is equipped with flow stop valve.Due to car in running process of elevator
Or counterweight, when there is emergent stopping, tensioner apparatus can be by impact force straight up so that the piston rod of hydraulic cylinder has
The trend of fast upward motion, flow stop valve can detect the size of hydraulic oil outflow flow in rodless cavity, switch in time
Cut-off state so that rodless cavity forms a seal chamber, and the compressed rear generation hydraulic cushion power of hydraulic oil of intracavitary prevents tensioning
Wheel apparatus is beated.
Preferably, safety valve is equipped between the flow stop valve and rodless cavity.When pressure is more than safety valve in rodless cavity
Setting when, hydraulic oil will pass through safety valve overflow to Fuel Tanking Unit.
Preferably, pressure switch is equipped between the flow stop valve and rodless cavity.The setting can send out alarm signal
Breath is sent to elevator control system.
Preferably, the pipeline road for being connected to rod chamber is equipped with throttle valve.The throttle valve connects respectively for maintaining
The flow equilibrium being connected between rod chamber and the pipeline road of rodless cavity, vibrates to avoid hydraulic control system.
Preferably, it is connected between the pipeline road of rod chamber and Fuel Tanking Unit and is equipped with the branch with the second check valve.
When tensioner apparatus is beated, the pressure in rod chamber can reduce, and quick repairing is realized by the second check valve.
Compared with the existing technology, beneficial effects of the present invention are embodied in:
(1) present invention provides auxiliary tensile force for compensating rope of elevator, effectively inhibits its shaking, and it is comfortable to improve lift car
Property.Auxiliary tensile force using hydraulic coupling as compensation steel wire rope substantially reduces tensioning wheel relative to only with gravity mode
Dead weight, keep its space small, it is easy for installation.
(2) present invention uses active active hydraulic system, remains the auxiliary tensioning of compensating rope of elevator, needs simultaneously
It wants system when anti-bouncing function to respond faster, improves safety.
(3) present invention directly converts the rotation function of tensioning wheel to the power source of hydraulic control system, need not be additional
Drive energy, effectively realize the energy saving of system.
Description of the drawings
Fig. 1 is the schematic diagram of the tensioning of compensating rope of elevator auxiliary and anti-jump system in embodiment 1.
Wherein:1, bidirectional hydraulic pumps;2, accumulator;3, pressure regulator valve;4, the first check valve;5, fuel tank;6, the second check valve;
7, pressure gauge;8, throttle valve;9, flow stop valve;10, safety valve;11, pressure switch;12, hydraulic cylinder;13, tensioning wheel fills
It sets;14, deferent segment pipeline;15, the first branch;16, the second branch;17, piston rod.
Specific implementation mode
It is further illustrated the present invention with reference to the description and the appended drawings.
Embodiment 1
The auxiliary of compensating rope of elevator as shown in Figure 1 is tensioned and anti-jump system, including tensioner apparatus 13 and hydraulic pressure control
System processed, tensioner apparatus 13 include shell and tensioning wheel.
Hydraulic control system include Fuel Tanking Unit (fuel tank 5), bidirectional hydraulic pump 1, deferent segment pipeline 14, the first branch 15,
The second branch 16 and hydraulic cylinder 12.Hydraulic cylinder 12 is located at the top of tensioner apparatus 13, the cross bar being fixedly installed in hoistway
On, and the piston rod 17 of hydraulic cylinder 12 is then fixedly connected on the shell of tensioner apparatus 13.Bidirectional hydraulic pump 1 input shaft with
The tensioning wheel wheel shaft of roller unit 13 is rigidly connected, and directly converts the rotation function of tensioning wheel to the power of bidirectional hydraulic pump 1
Source.The oil inlet of bidirectional hydraulic pump 1 is connected to fuel tank 5, and the oil outlet of the other side is connected to deferent segment pipeline 14, deferent segment pipeline
Accumulator 2, the first check valve 4 and pressure gauge 7 are equipped on 14 successively, and band is additionally provided between deferent segment pipeline 14 and fuel tank 5
There is the branch of pressure regulator valve 3.
Deferent segment pipeline 14 is connected to the first branch 15, the second branch 16, is set between the junction between three and fuel tank 5
There is a branch with the second check valve 6, and the rod chamber of 15 connection liquid cylinder pressure 12 of the first branch, 16 connection liquid cylinder pressure of the second branch
12 rodless cavity.Throttle valve 8 is also equipped in the first branch 15, be also sequentially installed in the second branch 16 flow stop valve 9 with
And safety valve 10 and pressure switch 11.
The course of work of the present invention is as follows:
When elevator is run upward or downward, compensating rope of elevator drives tensioning wheel to rotate clockwise or counterclockwise, tensioning wheel
Wheel shaft drive bidirectional hydraulic pump 1 by fuel tank 5 hydraulic oil export, hydraulic oil pass through deferent segment pipeline 14, wherein all the way via
Throttle valve 8 enters the rod chamber of hydraulic cylinder 12;Another way enters the rodless cavity of hydraulic cylinder 12 via flow stop valve 9, flows at this time
Amount stop valve 9 is operated in conducting state.Meanwhile throttle valve 8 is arranged in the first branch 15 so that the first branch 15 and the second branch 16
Flow reach balance, prevent from vibrating inside hydraulic control system.
And the maximum system pressure of hydraulic control system is then set by pressure regulator valve 3, excess flow goes out via pressure regulator valve 3
Mouthful pressure release is to fuel tank 5.Due to the acting surface product moment between rodless cavity and rod chamber so that the piston rod 17 of hydraulic cylinder 12 has perpendicular
Straight downward implementation capacity, acts on tensioner apparatus 13, therefore compensating rope of elevator is in the state of 13 gravity tensioning of tensioner apparatus
The lower auxiliary tensile force for being superimposed piston rod 17 effectively inhibits its shaking to make compensating rope of elevator be further tensioned.
If the pressure output in hydraulic control system is more than setting range, 11 alert of pressure switch is sent to electricity
Terraced control system.
In running process of elevator, if emergent stopping occurs in any one in car or counterweight, another makees due to inertia
Stopped with that will continue to run with until slowing down, compensating rope of elevator will drive tensioner apparatus 13 to beat upwards, lead to hydraulic cylinder 12
Piston rod 17 there is quickly upward movement tendency.The flow stop valve 9 of the rodless cavity outlet of hydraulic cylinder 12 will be examined at this time
It is excessive to measure the flow that hydraulic oil flows out in rodless cavity, is immediately switched to cut-off state, the rodless cavity of hydraulic cylinder 12 is made to form one
A seal chamber, the compressed rear generation hydraulic cushion power of hydraulic oil of intracavitary, prevents tensioner apparatus 13 from takeofing.Due in normal work
Under condition, the rodless cavity of hydraulic cylinder 12 has certain pressure, therefore the hydraulic oil of the intracavitary is in compressive state always, thus
It will be responded more rapidly than common buffer when triggering anti-bouncing function.
If the pressure in the rodless cavity of hydraulic cylinder 12 is more than the safe range of setting, pressure switch 11 sends out alarm signal
Breath is sent to elevator control system, while hydraulic oil will be in the outlet pressure release to fuel tank 5 by safety valve 10.In addition, tensioning wheel fills
When setting 13 bounce, the pressure in rod chamber can reduce, and need to supplement hydraulic oil to rod chamber, be realized quickly by the second check valve 6
Repairing.Since the hydraulic oil of 1 output of part bidirectional hydraulic pump can be stored in accumulator 2, when 1 damage of bidirectional hydraulic pump or
When fuel feeding deficiency, accumulator 2 can maintain system pressure in a short time;And the first check valve 4 then plays protection accumulator 2
Effect prevents accumulator 2 to be under pressure impact.
Embodiment 2
Embodiment 2 difference from example 1 is that, compensating rope of elevator auxiliary tensioning and anti-jump system in it is two-way
Hydraulic pumping unit includes bidirectional variable hydraulic pump, and the branch with pressure regulator valve 3 need not be equipped between deferent segment pipeline 14 and fuel tank 5
Road adjusts the pressure of the hydraulic oil in hydraulic control system by bidirectional variable hydraulic pump.