CN106477409A - There is elevator and its method for maintaining of air fairing - Google Patents

Abstract

The invention relates to an elevator maintenance method provided with a car top fairing, and an elevator realizing the method. The elevator maintenance method includes: keeping the car top fairing at a predetermined position in the hoistway, driving the car down, thereby separating the car top fairing from the car. Separated from the car, it can also be the upper part of the car roof fairing. The elevator implementing the method has: a bracket (136) mounted on the car guide rail (122); The support arm (126) of the upper part (114a). The upper part of the car top fairing and the lower part of the car top fairing (114b) are detachably fixedly connected. Remove this connection, put the support arm on the support, and drive the car (110) to go down, so that the top fairing cover on the car top can be separated from the car. Accordingly, it is possible to eliminate the obstacle of the car roof fairing to the maintenance work.

Description

Elevator with air rectifying device and maintenance method thereof

technical field

The present invention relates to an elevator with an air fairing device, in particular to an elevator with an air fairing on the top of the car and a maintenance method thereof.

Background technique

Due to the high lifting speed of high-speed elevators installed in high-rise buildings, the air in the shaft often forms a large turbulent flow, and the noise generated by this turbulent flow will make passengers feel uncomfortable. Therefore, many high-speed elevators are equipped with an air rectification device on the upper part of the car to suppress the turbulent flow formed when the elevator is running, reduce noise and improve the comfort of the elevator. For example, Japanese Patent Publication No. 2006-27835 discloses an elevator with a rectifying device, which is respectively provided with rectifying devices above and below the car. These rectifying devices are hollow fairings for air rectification, and a part of its structure has a streamlined shape, which can reduce the turbulence generated by the airflow flowing around the car.

However, when the elevator is being maintained, maintenance personnel need to climb onto the car top to inspect and maintain various devices, detectors, parts, etc. that are arranged on the car top or the hoistway. For example, check and maintain the connection and fixing part of the traction rope and the upper beam of the car, check and maintain the leveling sensor installed on the car roof, and adjust the counterweight of the counterweight device, etc. At this time, the fairing installed on the car roof will become an obstacle, seriously affecting the efficiency of maintenance work. In particular, the streamlined part of the fairing makes the height of the fairing lower sharply, which brings great difficulties to maintenance personnel in the maintenance work in the fairing.

The elevator device disclosed in the above-mentioned patent documents not only provides an inspection port on the fairing, but also has a working platform in the fairing. Standing on the workbench, maintenance personnel can lean their upper body out of the inspection port to perform maintenance outside the fairing. However, at this time, the maintenance personnel cannot leave the inspection port, and the range in which maintenance operations can be performed is very limited. When performing maintenance inside the fairing, the maintenance personnel can stand up the workbench to prevent the workbench from hindering maintenance. However, in order to set up such a working platform, it is necessary to set up a support frame in the fairing, which will further reduce the space in the fairing which is already very narrow, and make the maintenance in the fairing more difficult. In a word, although the above-mentioned prior art can make maintenance personnel carry out some maintenance work reluctantly on the car top that is provided with fairing, can not get rid of the obstacle of fairing, can not remove the difficulty that fairing brings to maintenance.

Contents of the invention

The technical problem to be solved by the present invention is to provide a maintenance method for an elevator equipped with a car top fairing for air rectification on the top of the car, which can remove the difficulty brought by the fairing to maintenance. The maintenance method includes: keeping the car top fairing at a predetermined position in the hoistway, driving the car down, thereby separating the car top fairing from the car.

In the above-mentioned fairing separation step, what is separated from the car and kept at a predetermined position in the hoistway can be the whole car top fairing or only the upper part of the car top fairing.

Since the car top fairing or the upper part of the car top fairing can be separated from the car through the step of separating the car top fairing, it is possible to eliminate the obstacle of the car top fairing to the maintenance work and remove the difficulties brought by the car top fairing to subsequent maintenance. Improve the environment for maintenance work.

Correspondingly, another technical problem to be solved by the present invention is to provide an elevator with a car roof fairing for air rectification on the top of the car, which is suitable for using the above-mentioned maintenance method. The elevator has: a bracket installed on the car guide rail; support arm. The car roof fairing is detachably fixedly connected to the car. Release the connection between the car top fairing and the car, put the support arm on the support, make the support bear the car top fairing, and drive the car down, so that the The car top fairing is separate from the car.

The present invention also provides another elevator with a car roof fairing for air rectification on the top of the car, which is suitable for using the above-mentioned maintenance method. The elevator has: a bracket installed on the car guide rail; The support arm on the upper part of the hood. The upper part of the car top fairing and the lower part of the car top fairing are detachably fixedly connected. Release the connection between the upper part of the car top fairing and the lower part of the car top fairing, put the support arm on the support, make the support bear the upper part of the car top fairing, and drive the car down , the upper part of the car roof fairing can be separated from the car.

Since the elevator provided by the present invention can use the above-mentioned maintenance method, the car top fairing or the top of the car top fairing can be separated from the car by the separation step of the fairing during maintenance, so the car top fairing can be eliminated. Obstacles, remove the difficulties brought by the car top fairing to subsequent maintenance, and improve the environment for maintenance operations.

Description of drawings

Fig. 1 is a schematic diagram schematically showing one embodiment of the elevator of the present invention.

FIG. 2 is a schematic diagram schematically showing the structure of the car 110 shown in FIG. 1 and its surroundings.

Fig. 3 is an enlarged schematic view schematically showing the upper portion of the car shown in Fig. 2 .

Fig. 4 is a schematic projected view of section A-A shown in Fig. 3 .

Fig. 5 schematically shows the process of separating the upper part of the car roof fairing from the car when servicing the elevator.

FIG. 6 is a schematic diagram of enlarged projection of direction B shown in FIG. 5 .

FIG. 7 is a schematic diagram of the projection in the direction C shown in FIG. 6 .

Fig. 8 is a schematic view schematically showing a modified example of the frame of the elevator according to the present invention.

Fig. 9 is a flowchart schematically showing an embodiment of the elevator maintenance method of the present invention.

＜Symbols in the drawings＞

100-elevator, 102-well, 104-counterweight, 106-traction rope, 108-traction machine, 110-car, 114-car top fairing, 114a-upper part of car top fairing, 114b-car top rectification Lower part of cover, 116-maintenance port, 116a-maintenance port cover, 118-car bottom fairing, 122-guide rail, 124-guide shoe, 126-support arm, 132-reinforcement frame, 134-reinforcement frame, 136-bracket, 136a - notch, 136b - block, 138 - rail clip.

detailed description

The specific implementation manners of the present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

First, the elevator maintenance method of the present invention, which is suitable for use in an elevator provided with a car roof fairing for air rectification on the top of the car, will be described. The method includes a spinner separation step. In this cowling separation step, the car roof cowling is held at a predetermined position within the hoistway, and the car is driven downward, thereby separating the car roof cowling from the car.

Because the car top fairing can be separated from the car by the step of separating the car top, the obstacle of the car top fairing to the maintenance operation is eliminated, and the difficulty that the car top fairing brings to follow-up maintenance is removed, so the follow-up steps of this elevator maintenance method, The maintenance method of the elevator without car roof fairing can be used.

In the above-mentioned fairing separation step, what is separated from the car and kept at a predetermined position in the hoistway can be the whole car top fairing or only the upper part of the car top fairing. The car top fairing can sometimes be divided into upper and lower parts. The lower part of the car top fairing is mainly composed of a plurality of planes extending longitudinally along the running of the car, while the upper part of the car top fairing is mainly composed of streamlined curved surfaces. Since the upper part of the car top fairing is the main part that brings difficulties to the maintenance work, as long as the upper part of the car top fairing is separated from the car, the obstacle of the car top fairing to the maintenance work can be eliminated and the maintenance work environment can be improved. Purpose.

Fig. 1 is a schematic diagram schematically showing one embodiment of the elevator of the present invention. The elevator 100 includes a hoistway 102 , a car 110 , a counterweight 104 , and a traction machine 108 . The car 110 and the counterweight 104 are connected by a traction rope 106 , and are raised and lowered in the hoistway 102 under the traction of the traction machine 108 .

FIG. 2 is a schematic diagram schematically showing the structure of the car 110 shown in FIG. 1 and its surroundings. Figure 2 contains 3 subplots. The figure on the lower left is the main view. The figure on the upper left is a top view. The figure on the lower right is the right view. The top of the car 110 is provided with a car top fairing 114 , and the bottom of the car 110 is provided with a car bottom fairing 118 . The car top fairing 114 and the car bottom fairing 118 can achieve the effect of air rectification, suppress the turbulent flow generated by the airflow passing around the car, reduce noise, and improve the comfort of the elevator.

The car roof fairing 114 includes a car roof fairing upper part 114a composed of a streamlined curved surface, and a car roof fairing lower part 114b composed of a longitudinally extending flat surface. Four guide shoes 124 are installed above and below the car 110 . In order to show the relative positions of the car 110 and the guide rails, two guide rails 122 of the car are shown in the top left plan view. Under the guidance of the guide shoes 124 , the car 110 ascends and descends in the hoistway 102 along the guide rails 122 .

Fig. 3 is an enlarged schematic view schematically showing the upper portion of the car shown in Fig. 2 . Figure 3 contains 3 subplots. The figure on the lower left is the main view. The figure on the upper left is a top view. The figure on the lower right is the right view. A maintenance port 116 (refer to FIG. 2 ) is opened on the car top fairing 114 , and a maintenance port cover 116 a is usually installed on the maintenance port 116 . When maintenance personnel carry out maintenance operations, they can enter the car top fairing 114 through the maintenance port 116 and climb onto the car top.

As shown in the top view in FIG. 3, a bracket 136 is mounted to each guide rail 122 of the car. Four support arms 126 are provided on the car roof fairing upper portion 114a. Two of the support arms 126 can extend to the bracket 136 installed on the left rail 122 and put them on the bracket 136, and the other two support arms 126 can extend to the bracket 136 installed on the right rail 122 and put them on the bracket. 136, so that the two brackets 136 carry the upper part 114a of the car roof fairing. For example, a drive mechanism for linear motion can be provided for the support arm 126, which is used to drive the support arm 126 to stretch out from the upper part 114a of the car top fairing to the direction of the support 136, and retract the extended support arm 126 to the upper part 114a of the car top fairing. internal. In addition, each supporting arm 126 can also be made up of a plurality of tubes with different end surface sizes that are nested together and can be telescopically transformed by sliding relative to each other. For this sleeve-type support arm 126, maintenance personnel can manually extend or shorten it, so the driving mechanism can be omitted.

In order to strengthen the strength of the fairing, a reinforcing frame 132 is provided on the edge of the upper part 114a of the car top fairing, and a reinforcing frame 134 is provided on the edge of the lower part 114b of the car top fairing. The reinforcement frame 132 and the reinforcement frame 134 may be made of angle steel or channel steel. Of course, the reinforcement frame 132 and the reinforcement frame 134 can also be made of other structural materials with sufficient strength.

Fig. 4 is a schematic projected view of section A-A shown in Fig. 3 . As shown in FIG. 4 , the car top fairing upper part 114 a and the car top fairing lower part 114 b are respectively provided with a reinforcing frame 132 and a reinforcing frame 134 at the junction of the two. The reinforcing frame 132 and the reinforcing frame 134 are connected by a plurality of bolts and nuts, so that a detachable and fixed connection is formed between the upper part 114a of the car top fairing and the lower part 114b of the car top fairing.

Fig. 5 schematically shows the process of separating the upper part of the car roof fairing from the car when servicing the elevator. Figure 5 contains 2 subplots. The upper part is a plan view, and the lower part is a front view of the car roof fairing upper part 114a separated from the car. Fig. 5 shows a state in which the maintenance port cover 116a is removed. As shown by the white arrows with black borders in the plan view, the four support arms 126 arranged on the upper part 114a of the car top fairing can respectively extend to two brackets 136 and be put on the brackets 136, so that the brackets 136 carry the car top fairing upper portion 114a.

Remove the nuts shown in Figure 4, release the connection between the upper part 114a of the car top fairing and the lower part 114b of the car top fairing, put the support arm 126 on the bracket 136, make the bracket 136 carry the upper part 114a of the car top fairing, and then As shown in the front view of FIG. 5 , the car 110 is driven to go down, so that the upper part 114a of the car top fairing can be separated from the car 110 .

As shown in the front view of FIG. 5 , the bracket 136 of this embodiment is made of angle steel, and is installed on the guide rail 122 in such a way that the vertical side of the angle steel is on the top and the horizontal side is on the bottom. FIG. 6 is a schematic diagram of enlarged projection of direction B shown in FIG. 5 . FIG. 7 is a schematic diagram of projection in the direction C shown in FIG. 6 . As shown in FIG. 6 and FIG. 7 , the bracket 136 is installed on the back of the guide rail 122 through the guide rail clip 138 and bolts and nuts.

As shown in FIG. 6 and FIG. 7 , a notch 136 a is provided on the vertical edge of the angle steel of the bracket 136 . The position of the notch 136 a corresponds to the position where the supporting arm 126 is placed, and the size of the notch 136 a can accommodate the supporting arm 126 . It goes without saying that the left part of the bracket 136 , which is not shown in FIGS. 6 and 7 , is also provided with a notch 136 a. After the support arm 126 is stretched, it can just fit into the notch 136a of the bracket 136 . In this way, the movement of the support arm 126 can be limited, preventing the car roof fairing upper part 114a separated from the car 110 from moving greatly due to earthquakes and the like. Therefore, the alignment between the car top fairing upper part 114a and the car top fairing lower part 114b at the time of reassembly becomes very easy.

Fig. 8 is a schematic view schematically showing a modified example of the frame of the elevator according to the present invention. The bracket 136 can also adopt the structure shown in FIG. 8 . The bracket 136 of this modified example is also made of angle steel. Different from the above embodiments, the angle steel is installed on the guide rail 122 with the vertical side on the bottom and the horizontal side on the top. A stopper 136b is provided on the outer side of the bracket 136 corresponding to the position where the support arm 126 is placed. Of course, the left part of the bracket 136 not shown in FIG. 8 is also provided with a stopper 136b. The two stoppers 136b on the left and right can limit the movement of the support arm 126 and prevent the upper part 114a of the car roof fairing 114a after being separated from the car 110 from moving greatly. Therefore, the alignment between the car top fairing upper part 114a and the car top fairing lower part 114b at the time of reassembly becomes very easy.

Fig. 9 is a flowchart schematically showing an embodiment of the elevator maintenance method of the present invention. This is an embodiment in which the elevator maintenance method of the present invention is applied to the elevator of the present invention described above. In this embodiment, the spinner separating step can be divided into 4 sub-steps from S904 to S910 shown in FIG. 9 . Each step shown in FIG. 9 will be described below.

In step S902, the maintenance personnel removes the maintenance port cover 116a on the car top fairing 114, enters the car top fairing 114 from the maintenance port 116, and climbs on the car top. Manipulate the car 110 to adjust its height so that the height of the support arm 126 arranged on the top fairing 114a of the car reaches a slightly higher position than the support 136 .

In step S904 , the maintenance personnel extend the support arm 126 disposed on the upper part 114 a of the car top fairing toward the bracket 136 installed on the guide rail 122 , and reach a position where it can be placed on the bracket 136 . In step S906, the nuts shown in FIG. 4 are unscrewed, and the connection between the car top fairing upper part 114a and the car top fairing lower part 114b is released. In step S908, the car 110 is manipulated to descend slowly, and the support arm 126 is gradually placed on the support 136, so that the support 136 supports the upper part 114a of the car roof fairing. In step S910, continue to drive the car 110 downward, so that the car 110 is separated from the upper fairing 114a of the car roof.

Through the above steps, the hindrance of the upper part 114a of the car top fairing to the maintenance work is eliminated, so from step S912, the maintenance personnel can perform maintenance work like an elevator without a car top fairing.

When the maintenance method of the present invention is applied to the above-mentioned elevator of the present invention, in the fairing separation step, only the upper part of the car top fairing 114a is separated from the car 110, not the whole of the car top fairing 114. This can not only reduce the burden of the bracket 136, but also the car top fairing lower part 114b left on the car top can be used as a guardrail, thereby reducing the cost of additional guardrails and ensuring the safety of maintenance personnel.

As a modified example of the elevator of the present invention, it also has a bracket installed on the guide rail of the car and a support arm arranged on the fairing of the car top. The support arm is arranged at a proper position of the car top fairing so that it can extend toward the support and be placed on the support, so that the support bears the car top fairing. Different from the foregoing embodiments, the setting position of the support arm is not limited to the upper part of the car roof fairing. In addition, the difference between this modified example and the foregoing embodiments lies in that the car roof fairing and the car are detachably fixedly connected. When the connection between the car roof fairing and the car is released, the support arm is placed on the support so that the support carries the car top fairing, and the car is driven downward to separate the car top fairing from the car .

Due to factors such as the size, shape, and structure of the car and the car top fairing, there are elevators in which the car top fairing cannot be divided into upper and lower parts and separated. For such an elevator it is suitable to use the above-described variants of the invention. In this way, all the car top fairing can be separated from the car during maintenance, thereby eliminating the obstacle of the car top fairing to the maintenance work, eliminating the difficulties brought by the car top fairing to subsequent maintenance, and improving the maintenance environment. At this time, additional guardrails can be provided as needed.

For this modified example using the elevator maintenance method of the present invention, its steps are almost the same as the process shown in FIG. 9 , that is, the fairing separation step can be divided into 4 sub-steps from S904 to S910. The difference is that: in step S904, the maintenance personnel extend the support arm arranged on the car roof fairing toward the bracket installed on the car guide rail, and reach a position where it can be placed on the bracket. In step S906, the connection between the car roof fairing and the car is released. In step S908, the car is manipulated to slowly descend, and the supporting arm is gradually placed on the support, so that the support supports the car roof fairing. In step S910, continue to drive the car down, so that the car is separated from the car top fairing.

The present invention is not limited to the above-described embodiments, and includes various modified examples. For example, in the above-mentioned embodiments, the present invention has been described in detail for easy understanding, but the present invention is not limited to the embodiments having all the above-mentioned components. In addition, some technical features of a certain embodiment may be replaced with technical features of other embodiments, and some components of a certain embodiment may be added to other embodiments. In addition, other technical features may be added, replaced, or deleted for parts of the components of each embodiment.

Claims (6)

1. A maintenance method for an elevator that is provided with a car roof fairing for air rectification on the top of the car, It is characterized by: including The car top fairing is held at a predetermined position in the hoistway, and the car is driven downward, thereby separating the car top fairing from the car. 2. The elevator maintenance method according to claim 1, It is characterized in that the separation step of the fairing includes the following sub-steps: extending the support arm provided on the car roof fairing to the bracket installed on the car guide rail, disconnecting the car top fairing from the car, placing the support arm on the support so that the support supports the car top fairing, Drive the car down to separate the car from the car top fairing. 3. The elevator maintenance method according to claim 1, It is characterized by: In the fairing separation step, it is the upper part of the car roof fairing that is separated from the car and held at a predetermined position in the hoistway. 4. The elevator maintenance method according to claim 3, It is characterized in that the separation step of the fairing includes the following sub-steps: extending the support arm arranged on the upper part of the car roof fairing to the bracket installed on the car guide rail, release the connection between the upper part of the car top fairing and the lower part of the car top fairing, placing the support arm on the bracket so that the bracket bears the upper part of the car roof fairing, Drive the car down to separate the car from the upper part of the car roof fairing. 5. An elevator with a car roof fairing for air rectification on the top of the car, It is characterized by: It has: a bracket installed on the guide rail of the car; and a support arm arranged on the car top fairing, which can be extended toward the bracket and placed on the bracket, so that the bracket carries the car top fairing , The car roof fairing is detachably fixedly connected to the car, Release the connection between the car top fairing and the car, put the support arm on the support, make the support bear the car top fairing, and drive the car down, so that the The car top fairing is separate from the car. 6. An elevator with a car roof fairing for air rectification on the top of the car, It is characterized by: It has: a bracket installed on the guide rail of the car; and, it is arranged on the upper part of the car roof fairing, and can be stretched toward the bracket and placed on the bracket, so that the bracket bears the upper part of the car roof fairing the support arm, The upper part of the car top fairing and the lower part of the car top fairing are detachably fixedly connected, Release the connection between the upper part of the car top fairing and the lower part of the car top fairing, put the support arm on the support, make the support bear the upper part of the car top fairing, and drive the car down , the upper part of the car roof fairing can be separated from the car.