The actuating device of pneumatic elevator
Technical field
The utility model belongs to elevator technology field, is specifically related to a kind of actuating device of pneumatic elevator.
Background technology
Traditional main frame traction elevator structurally generally includes four large spaces, eight large systems, and so-called four large spaces refer to: machine room part, hoistway and pit part, cab portion and stop part; Described eight large systems refer to: traction system, guidance system, car, door system, weight balancing system, electric drive system, electric control system, safety system; so the space that main frame traction elevator takies is large; tunnel dimension requires high, and productive costs is high.
For addressing the above problem, Chinese utility model patent CN203079477U discloses a kind of pneumatic lift appliance, comprise the air pump that can inflate or bleed, elevator hoistways, car guide rail in described hoistway setting up and down, be arranged in described hoistway and can be along the car of described car guide rail up-and-down movement, described car is sealed and matched mutually with the wall of described hoistway, between the wall of well of described car and its top, there is the gas storage space of sealing, this gas storage space is connected with the gas port of described air pump, and the hoistway space of described car below is connected with outside atmosphere.This pneumatic lift appliance all without counterweight system, without pit is set, greatly reduce elevator cost, dwindle tunnel dimension requirement, and pneumatic lift appliance adopts air to carry out transferring power, environmental protection, cost is low.But this utility model is only provided with an air pump above car, air pump power is certain, as long as work will consume a certain amount of electric energy, can not adjust the inflation of air pump or the power of bleeding according to the load-carrying of car, cause great energy dissipation, and car in up-downgoing the rising or falling speed in initial and up-downgoing process not steady.
Summary of the invention
The utility model object is to provide a kind of actuating device of pneumatic elevator, saves the energy, guarantees that elevator operates steadily.
For achieving the above object, the technical solution adopted in the utility model is: a kind of actuating device of pneumatic elevator, between the elevator well channel wall of described pneumatic lift car and its top, there is the gas storage space of sealing, the blow off valve that described actuating device comprises airtight aspirating chamber, is located at least 2 air suctiton ventilators in described aspirating chamber and is located at aspirating chamber outside, described aspirating chamber is provided with induction opening and air gate, described aspirating chamber is connected with gas storage space by induction opening, by air gate, is connected with outside atmosphere;
The inlet end of described blow off valve is connected with described gas storage space.
Occasion in elevator hoistways headroom height deficiency, described actuating device can adopt following arrangement and structure: described actuating device is away from described elevator hoistways setting, described aspirating chamber comprises buffer air chamber and the air chamber being connected, described air suctiton ventilator is located in air chamber, described induction opening is located on buffer air chamber, and described air gate is located on air chamber;
Described buffer air chamber is connected with described gas storage space by described induction opening and gas exhaust duct;
The inlet end of described blow off valve is connected with described buffer air chamber by deflation hole.
Adopt after above-mentioned arrangement and structure, elevator hoistways overhead greatly reduces, and the degree of utilization of overhead is higher, and the layout of product is more flexible, and more quiet.
Wherein, described air chamber is become the first air chamber and the second air chamber by a baffle for separating, in described the first air chamber and the second air chamber, is equipped with described air suctiton ventilator.
Preferably, in described the first air chamber, be provided with two described air suctiton ventilators, in described the second air chamber, be provided with three described air suctiton ventilators.
Occasion in elevator hoistways headroom height abundance, described actuating device can adopt following arrangement and structure: described actuating device is located at the top side of elevator hoistways, described aspirating chamber is become the first air chamber and the second air chamber by a baffle for separating, in described the first air chamber and the second air chamber, is equipped with described air suctiton ventilator;
Described the first air chamber and the second air chamber are all connected with described gas storage space by described induction opening.
Wherein, described the first air chamber is connected with described gas storage space by a described induction opening, and described the second air chamber is connected with described gas storage space by two described induction openings.
Preferably, in described the first air chamber, be provided with two described air suctiton ventilators, in described the second air chamber, be provided with three described air suctiton ventilators.
Wherein, described blow off valve comprises electric-powered air release valve and manual exhaust valve, when Lift out of order, opens manual exhaust valve and exits, and makes lift car drop to elevator hoistways bottom.
Wherein, described air gate place is provided with air port block, and when air suctiton ventilator is bled, lift car is when up, air port block is opened voluntarily by the air blast power of air suctiton ventilator, is convenient to air gate exhaust; When lift car is descending, air port block closes air gate, and aspirating chamber and extraneous air are carried out to barrier.
Utilize the utility model to drive the driving method of elevator cage operation to comprise the up driving method of lift car and lift car downlink drive method, wherein,
The up driving method of described lift car comprises the steps:
(1-1) lift car is up initial, and the air suctiton ventilator in the first air chamber starts, exhausting, and lift car above it air pressure is less than under the differential pressure action of below air pressure a up segment distance at a slow speed;
(1-2) startup of the air suctiton ventilator in the second air chamber, exhausting, the air pressure of pneumatic lift car top accelerates to reduce, and lift car is with command speed fast uplink;
(1-3) lift car goes upward to while approaching destination, and the air suctiton ventilator in the second air chamber stops exhausting, and lift car starts up at a slow speed;
(1-4) lift car continuation is up at a slow speed, until target location, now the air suctiton ventilator in the first air chamber stops exhausting, the locking of car lockable mechanism, and lift car is parked in destination, completes up driving.
Described lift car downlink drive method comprises the steps:
(2-1) lift car down initial, air suctiton ventilator in the first air chamber starts, exhausting, and car lockable mechanism is unblanked, and lift car above it air pressure is less than under the differential pressure action of below air pressure a up segment distance at a slow speed;
(2-2) then the air suctiton ventilator in the first air chamber stops exhausting, and electric-powered air release valve starts venting simultaneously, and lift car is descending with command speed under the combined action of himself gravity and upper and lower draught head;
(2-3) when lift car approaches destination, electric-powered air release valve stops venting, and lift car is descending at a slow speed under self gravitation effect;
(2-4) lift car continuation is descending at a slow speed, until destination, the locking of car lockable mechanism, lift car is parked in destination, completes downlink drive.
Because technique scheme is used, the advantage that the utility model compared with prior art has is:
Actuating device of the present utility model includes at least 2 air suctiton ventilators that are divided into two groups, can select the quantity of the air suctiton ventilator of unlatching simultaneously according to the actual load-carrying in car, avoids energy dissipation, and guarantees that the pressure reduction of car upper and lower is unsteady little, and cage operation is steady.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment mono-;
Fig. 2 is the vertical view cutaway drawing of embodiment mono-;
Fig. 3 is the structural representation of the utility model embodiment bis-.
Wherein: 1, lift car;
2, elevator hoistways;
3, gas storage space;
4, aspirating chamber; 40, the first air chamber; 41, the second air chamber; 42, induction opening; 43, air gate; 44, buffer air chamber; 45, air port block;
5, air suctiton ventilator;
6, blow off valve; 60, electric-powered air release valve; 61, manual exhaust valve;
7, gas exhaust duct.
The specific embodiment
Below in conjunction with drawings and Examples, the utility model is further described:
Embodiment mono-: shown in Figure 1, a kind of actuating device of pneumatic elevator, away from elevator hoistways setting, be applicable to the occasion of elevator hoistways headroom height deficiency, elevator hoistways overhead is greatly reduced, the degree of utilization of overhead is higher, the layout of product is more flexible, and more quiet.
In Fig. 1, between the elevator hoistways 2 of the lift car 1 of pneumatic elevator and its top, there is the gas storage space 3 of sealing, the blow off valve 6 that described actuating device comprises airtight aspirating chamber 4, is located at least 2 air suctiton ventilators 5 in described aspirating chamber 4 and is located at aspirating chamber 4 outsides, described aspirating chamber 4 is provided with induction opening 42 and air gate 43, described aspirating chamber 4 is connected with gas storage space 3 by induction opening 42, by air gate 43, is connected with outside atmosphere; The inlet end of described blow off valve 6 is connected with described gas storage space 3.
In the present embodiment, described aspirating chamber 4 comprises buffer air chamber 44 and the air chamber being connected, and described air suctiton ventilator 5 is located in air chamber, and described induction opening 42 is located on buffer air chamber 44, and described air gate 43 is located on air chamber.
Described buffer air chamber 44 is connected with described gas storage space 3 by described induction opening 42 and gas exhaust duct 7.
As shown in Figure 2, described blow off valve 6 comprises electric-powered air release valve 60 and manual exhaust valve 61, and both inlet ends are all connected with described buffer air chamber 44 by deflation hole.
Wherein, manual exhaust valve 61 is opened when Lift out of order, exits, and makes lift car drop to elevator hoistways bottom.
Described air chamber is become the first air chamber 40 and the second air chamber 41 by a baffle for separating, and the bottom of described the first air chamber 40 is provided with a pore and is communicated with buffer air chamber 44, and side is provided with a described air gate 43; The bottom of described the second air chamber 41 is provided with two pores and is communicated with described buffer air chamber 44, side is provided with a described air gate 43, described in each, air gate 43 places are provided with air port block 45, when air suctiton ventilator 5 is bled, lift car 1 is when up, air port block 45 is opened voluntarily by the air blast power of air suctiton ventilator, is convenient to air gate 43 exhausts; When lift car 1 is descending, air port block 45 closes air gate 43, and aspirating chamber 4 and extraneous air are carried out to barrier.
In described the first air chamber 40, be provided with in two air suctiton ventilators, 5, the second air chambers 41 and be provided with three air suctiton ventilators 5.
Embodiment bis-: as shown in Figure 3, the structure of the present embodiment and embodiment mono-are basic identical, and difference is: described actuating device is located at the top side of elevator hoistways, is applicable to the occasion of elevator hoistways headroom height abundance.
In the present embodiment, cancel gas exhaust duct and buffer air chamber in embodiment mono-, described aspirating chamber is become the first air chamber and the second air chamber by a baffle for separating, is provided with two described air suctiton ventilators in described the first air chamber, is provided with three described air suctiton ventilators in described the second air chamber.
Described the first air chamber directly communicates with described gas storage space by an induction opening of being located at elevator hoistways top, and described the second air chamber directly communicates with described gas storage space by two induction openings of being located at elevator hoistways top.
Described blow off valve comprises electric-powered air release valve and manual exhaust valve, and both inlet ends directly communicate with described gas storage space by being located at the deflation hole at elevator hoistways top.
Wherein, manual exhaust valve is opened when Lift out of order, exits, and makes lift car drop to elevator hoistways bottom.
Utilize the utility model to drive the driving method of elevator cage operation to comprise the up driving method of lift car and lift car downlink drive method, wherein,
The up driving method of described lift car comprises the steps:
(1-1) lift car is up initial, and the air suctiton ventilator in the first air chamber starts, exhausting, and lift car above it air pressure is less than under the differential pressure action of below air pressure a up segment distance at a slow speed;
(1-2) startup of the air suctiton ventilator in the second air chamber, exhausting, the air pressure of pneumatic lift car top accelerates to reduce, and lift car is with command speed fast uplink;
(1-3) lift car goes upward to while approaching destination, and the air suctiton ventilator in the second air chamber stops exhausting, and lift car starts up at a slow speed;
(1-4) lift car continuation is up at a slow speed, until target location, now the air suctiton ventilator in the first air chamber stops exhausting, the locking of car lockable mechanism, and lift car is parked in destination, completes up driving.
Described lift car downlink drive method comprises the steps:
(2-1) lift car down initial, air suctiton ventilator in the first air chamber starts, exhausting, and car lockable mechanism is unblanked, and lift car above it air pressure is less than under the differential pressure action of below air pressure a up segment distance at a slow speed;
(2-2) then the air suctiton ventilator in the first air chamber stops exhausting, and electric-powered air release valve starts venting simultaneously, and lift car is descending with command speed under the combined action of himself gravity and upper and lower draught head;
(2-3) when lift car approaches destination, electric-powered air release valve stops venting, and lift car is descending at a slow speed under self gravitation effect;
(2-4) lift car continuation is descending at a slow speed, until destination, the locking of car lockable mechanism, lift car is parked in destination, completes downlink drive.
Actuating device of the present utility model includes at least 2 air suctiton ventilators that are divided into two groups, can select the quantity of the air suctiton ventilator of unlatching simultaneously according to the actual load-carrying in car, avoids energy dissipation, and guarantees that the pressure reduction of car upper and lower is unsteady little, and cage operation is steady.
The above is preferred implementation of the present utility model; should be understood that; for those skilled in the art; do not departing under the prerequisite of principle described in the utility model; can also make some improvement or replacement, these improvement or replacement also should be considered as protection domain of the present utility model.