CN102616616B - Elevator equipment - Google Patents

Abstract

Provided is a piece of elevator equipment, which is capable of correcting the vertical deviation of an elevator car by a relatively small driving force. In the elevator equipment of the invention, a cable (4) is pulled upwardly or downwardly by a car position adjusting unit (6) above a lifting track of the elevator car (2), so as to correct the vertical deviation between a floor surface (2b) of the elevator car and a floor surface (11a) of a stop layer (11). The elevator equipment is further structured to have pulleys (7a, 7b) above the car position adjusting unit. The cable located at the balance-weight side is wound on the pulleys. In addition, a car-side cable end member and a balance-weight-side cable end member of the cable are connected in an opposite manner on a slide body (6a) of the car position adjusting unit. In this way, the cable is arranged in an annular shape. When the elevator car ascends, the slide body is lifted up by the mass of the balance weight. And when the elevator car descends, the slide body is brought down by the mass of the elevator car.

Description

Lift facility

Technical field

The present invention relates to a kind of lift facility can revising the vertical deviation of lift car.

Background technology

As the prior art of the vertical deviation revised between the floor of lift car and the floor of landing, such as can list technology disclosed in patent documentation 1 and patent documentation 2, it arranges the car position setting device be connected with cage side hoist cable terminal member above lift car fluctuating orbit, by car position setting device hoist cable drawn upward or draw downward, the position (such as patent documentation 1 and patent documentation 2) of lift car is adjusted with this, can list by the elevator disclosed in patent documentation 3 in addition, the hoist cable of suspention lift car and counterbalanced weight is wound on rope sheave by it, and turned to by deflection sheave, by driving rope sheave, lift car is elevated, this elevator has the travel mechanism of the center of turn movement making deflection sheave further, this travel mechanism is controlled by vertical deviation correcting device, adjust the position (such as patent documentation 3) of lift car thus.

At first technical literature

Patent documentation

The clear 61-130190 publication of patent documentation 1 Japanese Patent Laid-Open (second page, Fig. 1)

Patent documentation 2 Japanese Patent Laid-Open 2008-137756 publication (numbered paragraphs 0011 ~ 0019, Fig. 1)

The flat 8-59106 publication of patent documentation 3 Japanese Patent Laid-Open (numbered paragraphs 0019 ~ 0021, Fig. 1)

; in the above prior art; move up and down owing to being made the very heavy lift car of weight and counterbalanced weight or the hoist cable born as the load of load in lift car by car position setting device; or by travel mechanism, above-mentioned lift car and counterbalanced weight or hoist cable are moved; so equipment needs very large propulsive effort, the problem that existence can cause equipment enlarging and equipment cost to rise.

Summary of the invention

The present invention makes in view of problem existing in above-mentioned prior art, the object of the present invention is to provide a kind of can with less propulsive effort to revise the lift facility of lift car vertical deviation.

To achieve these goals, the invention provides a kind of lift facility, it has: the lift car be elevated in hoist trunk and counterbalanced weight, for driving the winch of the hoist cable of the described lift car of suspention and counterbalanced weight, and car position setting device, this car position setting device is arranged on the top of the fluctuating orbit of described lift car, the described hoist cable be connected with slide mass is drawn upward or draws downward, the vertical deviation between the floor of described lift car and the floor of landing is revised with this, the feature of described lift facility is, pulley is provided with above described car position setting device, this pulley is wound with the described hoist cable being positioned at balance heavy side, the lift car side sling terminal member of described hoist cable and the counterbalanced weight side sling terminal member of described hoist cable are connected on described slide mass in mode toward each other, thus described hoist cable is arranged to ring-type.

In the present invention with said structure, the hoist cable of balance heavy side is wound on the pulley be positioned at above car position setting device, and on the slide mass of car position setting device, connect the lift car side sling terminal member of hoist cable and the counterbalanced weight side sling terminal member of hoist cable in mode toward each other, thus hoist cable being arranged to ring-type, moving up and down the vertical deviation revised between the floor of lift car and the floor of landing by making slide mass.Thus, when making lift car rise, utilizing the quality of counterbalanced weight to make slide mass increase, and when making lift car decline, utilizing the quality of lift car that slide mass is declined, the vertical deviation of lift car can be revised thus with less propulsive effort.

Invention effect

According to the present invention, lift car vertical deviation can be revised with less propulsive effort, thus can implement device miniaturization and reduce costs.

Accompanying drawing explanation

Fig. 1 is the structural representation of the embodiment representing lift facility involved in the present invention.

Fig. 2 is the detailed structure view of the car position setting device that the lift facility of the present embodiment has.

Fig. 3 is the structural representation of the state of the lift car represented in the lift facility of the present embodiment when dropping to the below of assigned position and create vertical deviation.

Fig. 4 is the structural representation of the state of the lift car represented in the lift facility of the present embodiment when rising to the top of assigned position and create vertical deviation.

Fig. 5 is the detailed structure view of the slide mass propradation of the car position setting device representing the present embodiment.

Fig. 6 is the detailed structure view of the slide mass decline state of the car position setting device representing the present embodiment.

Nomenclature

1 hoist trunk

2 lift cars

2a car upper pulley

2b car floor

3 counterbalanceds weight

3a counterbalanced weight upper sheave

4 hoist cables

4a cage side hoist cable terminal member

4b counterbalanced weight side sling terminal member

5 winchs

5a rope sheave

6 car position setting devices

6a slide mass

6a1 through hole

6b hydraulic efficiency pressure system

6b1 plunger

6b2 hydraulic actuating cylinder

6b3 hydraulic oil pipe

6b4 transfer valve

6b5 Hydraulic Pump

7a, 7b pulley

8a, 8b connector rod

9a, 9b spring

10 Body of pillar

11 landing

11a floor

Detailed description of the invention

Be described referring to the embodiment of accompanying drawing to lift facility involved in the present invention.

As shown in Figure 1, the lift facility of the present embodiment has: the lift car 2 of lifting in hoist trunk 1 and counterbalanced weight 3; Hoist cable 4, it is wound on the car upper pulley 2a that is positioned at lift car 2 top and is positioned on the counterbalanced weight upper sheave 3a on counterbalanced weight 3 top, for suspending lift car 2 and counterbalanced weight 3 in midair; For driving the winch 5 of the hoist cable 4 be wound on rope sheave 5a; And car position setting device 6, it is arranged on the top of the fluctuating orbit of lift car 2, connected hoist cable 4 is drawn upward or is drawn downward, revises the vertical deviation between the floor of lift car 2 and the floor of landing with this.

Above car position setting device 6, be provided with pulley 7a, 7b, the hoist cable 4 being positioned at balance heavy side is wound on this pulley 7a, 7b.

As shown in Figure 2, car position setting device 6 has the hydraulic efficiency pressure system 6b of slide mass 6a and double-acting type (DoubleActing Type), the lift car side sling terminal member 4a of the hoist cable 4 and counterbalanced weight side sling terminal member 4b of hoist cable 4 is connected on slide mass 6a in mode toward each other, double-acting type hydraulic efficiency pressure system 6b is connected with slide mass 6a, and has the hydraulic circuit of two systems.

Slide mass 6a is formed with multiple through hole 6a1, the lift car side sling terminal member 4a of hoist cable 4 is connected with slide mass 6a by being inserted in connector rod (Socket) 8a in through hole 6a1 and the spring 9a be arranged between the end of connector rod 8a and the upper surface of slide mass 6a, the counterbalanced weight side sling terminal member 4b of hoist cable 4 is connected with slide mass 6a by the connector rod 8b that is inserted in through hole 6a1 and the spring 9b between the end being arranged on connector rod 8b and the lower surface of slide mass 6a, thus hoist cable 4 is arranged to ring-type.In addition, applied the power of being drawn upward by slide mass 6a by the hoist cable 4 of the balance heavy side be connected with slide mass 6a with pulley 7a, 7b via counterbalanced weight upper sheave 3a from winch 5, and applied the power of being drawn by slide mass 6a by the hoist cable 4 of the cage side be connected with slide mass 6a via car upper pulley 2a from winch 5 downwards.

As shown in Figure 2, hydraulic efficiency pressure system 6b has plunger 6b1, the hydraulic actuating cylinder 6b2 supplying this plunger 6b1 to insert and Hydraulic Pump 6b5 that upper end is connected with one end of slide mass 6a, Hydraulic Pump 6b5 is connected by the hydraulic oil pipe 6b3 of two systems and transfer valve 6b4 and hydraulic actuating cylinder 6b2, and pressurizes to hydraulic oil or reduce pressure.In addition, the Body of pillar 10 that synchronously can move up and down with hydraulic efficiency pressure system 6b is provided with at the other end of slide mass 6a.

According to the present embodiment, rest in after in landing 11 at lift car 2, when hoist cable 4 extends because of the passenger taken in lift car 2 or the goods loaded in lift car 2, as shown in Figure 3, between the floor 2b and the floor 11a of landing 11 of lift car 2, produce vertical deviation.Now, as shown in Figure 5, by not shown control setup, hydraulic oil is sent to the bottom of hydraulic actuating cylinder 6b2 via transfer valve 6b4 and hydraulic oil pipe 6b3 from Hydraulic Pump 6b5, and the top of hydraulic oil from hydraulic actuating cylinder 6b2 is sent via hydraulic oil pipe 6b3 and transfer valve 6b4, with this, plunger 6b1 is up pushed away.Thus, as shown in Figure 1, slide mass 6a and hoist cable 4 are mentioned upward, and the floor 2b of lift car 2 rises, and the vertical deviation between the floor 2b of the lift car 2 and floor 11a of landing 11 is revised.Now, be M by the quality settings of lift car 2, when the carrying capacity of lift car 2 is set as M, the quality due to counterbalanced weight 3 is set to the aggregate value of 1/2nd of the quality of lift car 2 and the carrying capacity of lift car 2 usually, so formula (1) is set up.

$M+\frac{M}{2}=\frac{3M}{2}\·\·\·\left(1\right)$

Now, slide mass 6a up to be pushed away and make lift car 2 increase aggregate value that required power upwards equals the quality of lift car 2 and the carrying capacity of lift car 2 deducts the quality of counterbalanced weight 3 and the value obtained.Now, during owing to adopting the hoist cable winding method of the 2:1 shown in diagram 1, lift car 2 and the propulsive effort needed for counterbalanced weight 3 is driven to be in a ratio of 1/2nd with the occasion of the hoist cable winding method adopting 1:1, so formula (2) is set up.

$\frac{2M}{2}-\frac{3M}{4}=\frac{M}{4}\·\·\·\left(2\right)$

On the other hand, only cage side hoist cable terminal member is being connected with car position setting device, and counterbalanced weight side sling terminal member is connected in the prior art of building side, the lift car 2 required power upwards that rises is made to equal the aggregate value of the quality of lift car 2 and the carrying capacity of lift car 2 at identical conditions, substitute into this aggregate value by the ratio of the hoist cable winding method by 2:1, formula (3) is set up.

$\frac{2M}{2}=M\·\·\·\left(3\right)$

Therefore, when adopting of the present invention, making lift car 2 increase and compared with prior art only needing 1/4th with the power needed for revising vertical deviation.

On the other hand, rest in after in landing 11 at lift car 2, when under hoist cable 4 is because of the passenger in lift car 2, elevator or the goods be contained in lift car 2 are taken out of lift car 2 and are shunk, as shown in Figure 4, vertical deviation can be produced between the floor 2b and the floor 11a of landing 11 of lift car 2.Now, as shown in Figure 6, by not shown control setup, hydraulic oil is sent to the top of hydraulic actuating cylinder 6b2 via transfer valve 6b4 and hydraulic oil pipe 6b3 from Hydraulic Pump 6b5, and the bottom of hydraulic oil from hydraulic actuating cylinder 6b2 is sent via hydraulic oil pipe 6b3 and transfer valve 6b4, with this, plunger 6b1 is drawn downward.Thus, as shown in Figure 1, along with slide mass 6a and hoist cable 4 are drawn downward, the floor 2b of lift car 2 declines, and the vertical deviation between the floor 2b of the lift car 2 and floor 11a of landing 11 is revised.Now, suppose that the quality of lift car 2 is identical with above-mentioned occasion with the quality of counterbalanced weight 3, and when the carrying capacity of lift car 2 is set as 0, the lift car 2 required downward power that declines is made to equal to deduct the quality of lift car 2 and the value obtained from the quality of counterbalanced weight 3, by the ratio of the hoist cable winding method of 2: 1 is substituted into this value, formula (4) is set up.

$\frac{3M}{4}-\frac{M}{2}=\frac{M}{4}\·\·\·\left(4\right)$

Can know from this formula, according to the relation between the quality of lift car 2 side and the quality of balance heavy side 3, in some cases, slide mass 6a is declined also needs propulsive effort, so have employed the double-acting type hydraulic efficiency pressure system 6b of the hydraulic circuit with two systems.

According to the present embodiment, lift car vertical deviation can be revised with less propulsive effort, thus can implement device miniaturization and reduce costs.

In addition, in the present embodiment, be illustrated for the one-sided occasion arranging hydraulic efficiency pressure system 6b only at slide mass 6a, but also according to the specification of elevator, hydraulic jack can be set in the both sides of slide mass, so can obtain larger propulsive effort.In addition, in the present embodiment, as the hydraulic efficiency pressure system of slide mass 6a being driven to have employed hydraulic efficiency pressure system 6b at above-below direction, but the present invention is not limited to this, as long as slide mass can be made stably to move up and down with the speed of regulation, then such as also can be configured to arrange the slide mass driven by ball screw, and be driven the structure etc. of ball screw by electrical motor etc.

Claims (1)

1. a lift facility, has: the lift car be elevated in hoist trunk and counterbalanced weight; For driving the winch of the hoist cable of the described lift car of suspention and counterbalanced weight; And car position setting device, this car position setting device is arranged on the top of the fluctuating orbit of described lift car, the described hoist cable be connected with slide mass is drawn upward or draws downward, the vertical deviation between the floor of described lift car and the floor of landing is revised with this, the feature of described lift facility is

Pulley is provided with above described car position setting device, this pulley is wound with the described hoist cable being positioned at balance heavy side, the lift car side sling terminal member of described hoist cable and the counterbalanced weight side sling terminal member of described hoist cable are connected on described slide mass in mode toward each other, thus described hoist cable is arranged to ring-type

The plunger that described car position setting device is connected with one end of described slide mass by upper end as hydraulic efficiency pressure system, the hydraulic actuating cylinder inserted for described plunger, and the pipe that links of the top of described hydraulic actuating cylinder and these two systems of pipe of linking with the bottom of described hydraulic actuating cylinder pipe, to be connected via the pipe of transfer valve and described two systems and the Hydraulic Pump pressurizeing to hydraulic oil or reduce pressure is formed, be provided with the Body of pillar that synchronously can move up and down with described hydraulic efficiency pressure system at the other end of described slide mass.