CN110884979A - Elevator system - Google Patents

Abstract

The invention relates to an elevator system, comprising a car, two first guide rails, a first reverse rope pulley group, a second reverse rope pulley group, a main engine assembly and two hoisting ropes. The two traction sheaves are respectively located on both sides of the motor, the motor is used to drive the traction sheave to rotate, and the two traction sheaves are respectively arranged corresponding to the first reverse rope sheave group and the second reverse rope sheave group. The two traction ropes are respectively arranged corresponding to the first reverse rope wheel group and the second reverse rope wheel group, and the two traction ropes are also respectively correspondingly wound on the two traction wheels. When the main engine assembly is working, the two traction ropes act together to drive the first reverse rope wheel group and the second reverse rope wheel group to drive the car to perform lifting action. The two sides of the plane formed by the connection of the center lines of the two first guide rails can avoid the bad phenomenon of inclination during the lift of the car, which is beneficial to improve the force effect of the guide shoes and ensure the balance of the car, and the operation is stable. Better performance and improved comfort.

Description

elevator system

technical field

The present invention relates to the technical field of elevators, in particular to an elevator system.

Background technique

With the development of modern society, elevators are becoming more and more important in people's daily work and life, especially in office buildings or residential buildings. In traditional elevator systems, a set of reverse sheaves are usually set on the car, and the hoisting rope goes around the reverse sheave and then connects the rope head and the main engine assembly respectively. However, with the increase of elevator load capacity and the continuous increase of elevator floor height, the longer the length of the guide rail that restricts the running track of the car, and the wider the car, the more opportunities for uneven weight distribution of passengers and accompanying objects, which will cause The stress on the car is unbalanced, and the friction between the guide shoe and the guide rail increases, which affects the smoothness of the elevator operation.

SUMMARY OF THE INVENTION

Based on this, it is necessary to overcome the defects of the prior art and provide an elevator system, which can help to improve the force bearing effect of the guide shoe, ensure the balance of the car, and has better running stability.

The technical solution is as follows: an elevator system, comprising: a car; two first guide rails, the two first guide rails are respectively arranged on two opposite sides of the car, and the first guide rails are located on the car The middle part of the side of the car; the first anti-rope wheel group and the second anti-rope wheel group, the first anti-rope wheel group and the second anti-rope wheel group are respectively located on the centerline of the two first guide rails The two sides of the plane formed by the connecting line; the main engine assembly, the main engine assembly includes a motor, a support seat and two traction wheels, the motor is arranged on the support seat, and the support seat is arranged on the well wall, The two traction sheaves are respectively located on both sides of the motor, and the motor is used to drive the traction sheave to rotate, and the two traction sheaves are respectively connected with the first reverse rope pulley group and the The second reverse rope wheel group is correspondingly arranged; and two traction ropes, two traction ropes are respectively arranged corresponding to the first reverse rope pulley group and the second reverse rope pulley group, and the two traction ropes They are also respectively correspondingly wound on the two traction wheels.

In the above-mentioned elevator system, when the main engine assembly is working, the two traction ropes act together to drive the first reverse rope sheave group and the second reverse rope sheave group to drive the car to lift and lower, while the first reverse rope sheave group and the second The sheave sets are located on both sides of the plane formed by the connection of the center lines of the two first guide rails, so as to avoid the bad phenomenon of inclination during the lift of the car, which is beneficial to improve the force effect of the guide shoe and ensure the safety of the car. The balance of the car is better, the running stability is better, and the comfort is improved.

In one embodiment, the center of gravity of the car is located on a plane formed by the line connecting the centerlines of the two first guide rails; the center of gravity of the two first guide rails coincides with the center of gravity of the car .

In one embodiment, the first reverse rope pulley group and the second reverse rope pulley group are arranged symmetrically with respect to a plane formed by a line connecting the centerlines of the two first guide rails; the first reverse rope pulley group There are more than two wheel sets, and one of the traction ropes is wound on two or more of the first anti-rope wheel sets; the second anti-rope wheel set is more than two, and the other is the traction rope It is wound around two or more of the second anti-rope pulley groups.

In one of the embodiments, the elevator system further includes a counterweight, a third reversing sheave group, a fourth reversing sheave group and two second guide rails; the third reversing sheave group and the fourth reversing sheave group The anti-rope wheel group is arranged on the counterweight, the third anti-rope wheel group and the fourth anti-rope wheel group are also respectively arranged corresponding to the two traction ropes; the two second guide rails are respectively Set on two opposite sides of the counterweight.

In one of the embodiments, the two second guide rails are symmetrically arranged with respect to a plane formed by a line connecting the centerlines of the two first guide rails.

In one embodiment, the elevator system further includes a first rope head seat and a second rope head seat arranged on the hoistway wall, and two ends of the hoisting rope are respectively connected with the first rope head seat and the second rope head seat. The second rope head bases are connected to each other, one of the traction ropes is arranged around the first anti-sheave base, one of the traction sheave and the third anti-sheave base in turn, and the other traction rope The rope is arranged around the second reverse sheave seat, the other said traction sheave and the fourth reverse sheave seat in sequence.

In one embodiment, the first reverse rope pulley group and the second reverse rope pulley group are both arranged on the bottom surface or top surface of the car; a side beam of the bottom surface of the car is provided with a first A column, the first column is provided with a safety gear matched with the guide rail; the top surface of the car is provided with an upper guide shoe matched with the guide rail, and the bottom surface of the car is provided with There is a lower guide shoe matched with the guide rail.

In one embodiment, when both the first reverse sheave group and the second reverse sheave group are arranged on the bottom surface of the car, the bottom surface of the safety gear is opposite to the first reverse sheave group. The bottom surfaces of the reverse sheave bracket of the sheave assembly and the reverse sheave bracket of the second reverse sheave assembly are closer to the bottom surface of the car, and the upper guide shoe is arranged on the top surface of the car. between two beams, and the top surface of the upper guide shoe is not higher than the top surface of the beam;

When both the first reverse rope sheave group and the second reverse rope sheave group are arranged on the top surface of the car, the top surface of the upper guide shoe is opposite to the reverse rope pulley assembly of the first rope sheave assembly. The top surfaces of the sheave bracket and the reverse sheave bracket of the second reverse sheave assembly are closer to the top surface of the car.

In one embodiment, the main engine assembly further includes a brake disposed on the support base, the support base is provided with a rotating shaft connected with the power output shaft of the motor, and the brake is used for braking the The rotating shaft, the traction sheave is arranged on the rotating shaft.

In one of the embodiments, the motor and the brake are located between the two traction sheaves; alternatively, the motor and the support base are an integrated structure; alternatively, the brake is arranged in one of the traction sheaves. The traction sheave faces away from the motor.

Description of drawings

1 is a schematic structural diagram of an elevator system according to an embodiment of the present invention;

2 is a perspective view of the elevator system according to an embodiment of the present invention;

3 is another perspective view of the elevator system according to an embodiment of the present invention;

4 is another perspective view of the elevator system according to an embodiment of the present invention;

5 is a top view of an elevator system according to an embodiment of the present invention;

6 is a schematic structural diagram of an elevator system according to another embodiment of the present invention;

7 is a schematic structural diagram of the elevator system according to an embodiment of the present invention when the first return sheave group and the second return sheave group are arranged on the bottom surface of the car;

8 is a positional relationship diagram between the upper guide shoe and the beam on the top surface of the car in the elevator system according to an embodiment of the present invention;

9 is a schematic structural diagram of the elevator system according to an embodiment of the present invention when the first reverse sheave group and the second reverse sheave group are arranged on the top surface of the car;

FIG. 10 is a schematic structural diagram of a main engine assembly in an elevator system according to an embodiment of the present invention.

Reference number:

10, car; 11, side beam; 12, cross beam; 20, first guide rail; 30, first reverse rope pulley group; 31, reverse rope pulley bracket; 51, motor; 52, support seat; 521, bottom plate; 522, support plate; 53, traction sheave; 54, brake; 55, rotating shaft; 60, traction rope; 70, counterweight; 71, the third reverse rope pulley group; 72, the fourth anti-rope wheel group; 73, the second guide rail; 81, the first rope head seat; 82, the second rope head seat; 91, the first column; 92, the safety gear; 93, the upper guide shoe.

Detailed ways

In order to make the above objects, features and advantages of the present invention more clearly understood, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

In the description of the present invention, it should be understood that the terms "first" and "second" are only used for description purposes, and cannot be interpreted as indicating or implying relative importance or the number of indicated technical features. Thus, a feature delimited with "first", "second" may expressly or implicitly include at least one of that feature. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise expressly and specifically defined.

In the description of the present invention, it will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. In contrast, when an element is referred to as being "directly" connected to another element, there are no intervening elements present.

In one embodiment, please refer to FIG. 1 to FIG. 5 , an elevator system includes a car 10 , two first guide rails 20 , a first return sheave group 30 , a second return sheave group 40 , and a main engine assembly 50 and two hoisting ropes 60.

The two first guide rails 20 are respectively disposed on two opposite sides of the car 10 , and the first guide rails 20 are located in the middle part of the side surface of the car 10 . The first reverse rope pulley set 30 and the second reverse rope pulley set 40 are respectively located on two sides of a plane formed by a line connecting the centerlines of the two first guide rails 20 . The main engine assembly 50 includes a motor 51 , a support base 52 and two traction wheels 53 . The motor 51 is disposed on the support base 52 . The support base 52 is disposed on the hoistway wall. The two traction sheaves 53 are located on two sides of the motor 51 respectively, and the motor 51 is used to drive the traction sheave 53 to rotate, and the two traction sheaves 53 are respectively connected to the first reverse rope. The wheel set 30 is arranged corresponding to the second reverse rope wheel set 40 . The two traction ropes 60 are respectively arranged corresponding to the first reverse rope wheel set 30 and the second reverse rope wheel set 40 , and the two traction ropes 60 are also correspondingly wound around the two traction ropes. on wheel 53.

In the above elevator system, when the main engine assembly 50 is working, the two traction ropes 60 act together to drive the first reverse sheave set 30 and the second reverse sheave set 40 to drive the car 10 to lift and lower, while the first reverse sheave set 40. The group 30 and the second reverse rope pulley group 40 are respectively located on both sides of the plane formed by the connecting line of the center lines of the two first guide rails 20, so as to avoid the bad phenomenon of inclination during the lifting process of the car 10, which is beneficial to The force bearing effect of the guide shoe is improved and the balance of the car 10 is ensured, the running stability is better, and the comfort is improved. In addition, the structure of the main engine assembly 50 is compact, which can increase the utilization rate of the hoistway, and under the premise of meeting the basic operating characteristics of the elevator, the size of the hoistway can be reduced to the greatest extent to meet the usage requirements.

It should be noted that the above-mentioned hoisting rope 60 may be a steel wire rope, a steel belt, a steel chain, etc., which is not limited herein. Specifically, in this embodiment, in order to improve the stability of the lift of the car 10, the hoisting rope 60 adopts, for example, two steel belts, and the two steel belts are jointly wound around the traction sheave 53 and the first reverse rope sheave. This can avoid the bad phenomenon of tilting during the lift of the car 10, which is beneficial to improve the force effect of the guide shoe and ensure the balance of the car 10, and the running stability is better. Comfort is improved.

Further, please refer to FIG. 1 to FIG. 5 again, the center of gravity of the car 10 is located on the plane formed by the connecting line of the center lines of the two first guide rails 20 . Specifically, the center of gravity of the two first guide rails 20 coincides with the center of gravity of the car 10 . In this way, it is beneficial to improve the balance of the car 10 during the lifting process, the running stability of the car 10 is better, and the comfort is improved.

Further, please refer to FIG. 1 to FIG. 5 again, the plane symmetry formed by the first reverse rope pulley group 30 and the second reverse rope pulley group 40 about the connecting line of the center lines of the two first guide rails 20 set up. In this way, the direction of the resultant force acting on the car 10 by each hoisting rope 60 can pass through the center of gravity of the car 10, thereby helping to improve the balance of the car 10 during the lifting process, and the running stability of the car 10 is better. Comfort is improved.

Further, there are more than two first reverse rope pulley sets 30 , and one of the traction ropes 60 is wound around two or more of the first reverse rope pulley sets 30 . In addition, there are more than two second pulley sets 40 , and another hoisting rope 60 is wound around two or more sets of second pulleys 40 . In this way, it is beneficial to lift the car 10 smoothly and avoid the car 10 from tilting during the lifting process. Specifically, there are two first return sheave groups 30 , and the two first reverse sheave groups 30 are respectively arranged on two opposite sides of the car 10 . Likewise, there are two second reverse-sheave groups 40 , and the two second reverse-sheave groups 40 are respectively arranged on two opposite sides of the car 10 .

In one embodiment, please refer to FIGS. 1 to 5 again, the elevator system further includes a counterweight 70 , a third reversing sheave group 71 , a fourth reversing sheave group 72 and two second guide rails 73 . The third anti-rope pulley group 71 and the fourth anti-rope pulley group 72 are arranged on the counterweight 70, and the third anti-rope pulley group 71 and the fourth anti-rope pulley group 72 are also connected to the counterweight 70 respectively. The two hoisting ropes 60 are arranged correspondingly. The two second guide rails 73 are respectively disposed on two opposite sides of the counterweight 70 . In this way, the various components of the elevator system are compactly arranged, which can increase the utilization rate of the hoistway, and under the premise of meeting the basic operating characteristics of the elevator, the size of the hoistway can be reduced to the greatest extent to meet the use requirements.

Further, please refer to FIG. 1 to FIG. 4 again, the two second guide rails 73 are arranged symmetrically with respect to a plane formed by the connecting line of the center lines of the two first guide rails 20 . In this way, on the one hand, the structure is compact and the utilization rate of the hoistway can be increased. On the premise that the basic operation characteristics of the elevator can be met, the size of the hoistway can be reduced to the greatest extent to meet the use requirements. On the other hand, the symmetrical design makes the center of gravity of the suspension coincide with the center of gravity of the car 10, which can better avoid the bad phenomenon of tilting during the lifting process of the car 10, which is beneficial to improve the force-bearing effect of the guide shoe and ensure the safety of the car. The balance of the car 10 is better, the running stability is better, and the comfort is improved.

In one embodiment, please refer to FIG. 1 to FIG. 4 again, the elevator system further includes a first rope head seat 81 and a second rope head seat 82 disposed on the hoistway wall. The two ends of the traction rope 60 are respectively connected with the first rope head seat 81 and the second rope head seat 82 , and one of the traction ropes 60 is wound around the first anti-sheave wheel seat in turn, wherein One of the traction sheave 53 and the third reverse sheave seat is provided, and the other traction rope 60 is sequentially wound around the second reverse sheave seat, the other traction sheave 53 and the fourth reverse rope Wheel seat settings. In this way, the traction ratio achieved by the elevator system is 2:1. Of course, the traction ratio of the elevator system is not limited to 2:1, and the traction ratio can also be set to 4:1, 8:1, or 16:1 as required, which is not limited here.

In one embodiment, please refer to FIGS. 1 to 6 , the first reverse sheave set 30 and the second reverse sheave set 40 shown in FIGS. 1 to 7 are both disposed on the bottom surface of the car 10 9, the first reverse rope wheel set 30 and the second reverse rope wheel set 40 are both arranged on the top surface of the car 10. A first column 91 is provided on the side beam 11 of the bottom surface of the car 10 , and a safety gear 92 matched with the guide rail is mounted on the first column 91 . The top surface of the car 10 is provided with an upper guide shoe 93 matched with the guide rail, and the bottom surface of the car 10 is provided with a lower guide shoe matched with the guide rail.

Specifically, please refer to FIG. 1 , FIG. 7 and FIG. 8 , when both the first reverse sheave set 30 and the second reverse sheave set 40 are arranged on the bottom surface of the car 10 , the The bottom surface of the safety gear 92 is closer to the car 10 than the bottom surface of the reverse sheave bracket 31 of the first reverse sheave set 30 and the reverse sheave bracket 31 of the second reverse sheave set 40 The bottom surface of the upper guide shoe 93 is disposed between the two beams 12 on the top surface of the car 10 , and the top surface of the upper guide shoe 93 is not higher than the top surface of the beam 12 . In this way, the depth of the pit can be correspondingly reduced, and the size of the hoistway can be reduced to a certain extent; in addition, the structure is compact and the utilization rate of the hoistway is increased.

In another embodiment, please refer to FIG. 9 , when the first reverse rope pulley set 30 and the second reverse rope pulley set 40 are both disposed on the top surface of the car 10 , the upper guide The top surface of the shoe 93 is closer to the car 10 than the top surface of the reverse-sheave bracket 31 of the first reverse-sheave set 30 and the reverse-sheave bracket 31 of the second reverse-sheave set 40 the top surface. In this way, the height of the top layer can be correspondingly reduced, and the size of the hoistway can be reduced to a certain extent; in addition, the structure is compact and the utilization rate of the hoistway is increased.

In one embodiment, please refer to FIG. 1 and FIG. 10 , the host assembly 50 further includes a stopper 54 disposed on the support base 52 . The support base 52 is provided with a rotating shaft 55 connected to the power output shaft of the motor 51 , the brake 54 is used for braking the rotating shaft 55 , and the traction sheave 53 is arranged on the rotating shaft 55 .

Further, the motor 51 and the brake 54 are located between the two traction sheaves 53 ; or, the motor 51 and the support base 52 are an integrated structure; or the brake 54 is arranged therein One side of the traction sheave 53 facing away from the motor 51 .

Further, please refer to FIG. 1 and FIG. 10 , the support base 52 includes a bottom plate 521 and two supporting plates 522 disposed on the bottom plate 521 at intervals. The rotating shaft 55 is rotatably mounted on the support plate 522 , and the motor 51 is mounted on the bottom plate 521 . The bottom plate 521 is arranged on the hoistway wall. The arrangement of the main engine assembly 50 may be, the brake 54-support plate 522-traction wheel 53-motor 51-traction wheel 53-support plate 522, or the traction wheel 53-support plate 522-motor 51-brake 54 - support plate 522 - traction sheave 53, or it can be, support plate 522 - traction sheave 53 - brake 54 - motor 51 - traction sheave 53. In addition, when the motor 51 and the support base 52 are an integrated structure, the main engine assembly 50 is arranged in the following manner: the traction sheave 53 - the motor 51 and the support base 52 - the brake 54 - the traction sheave 53 . It can be seen that the various components of the elevator system are compactly arranged, which can increase the utilization rate of the hoistway. On the premise that the basic operating characteristics of the elevator can be met, the size of the hoistway can be reduced to the greatest extent to meet the requirements of use.

The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity, all possible combinations of the technical features in the above-described embodiments are not described. However, as long as there is no contradiction between the combinations of these technical features, All should be regarded as the scope described in this specification.

The above-mentioned embodiments only represent several embodiments of the present invention, and the descriptions thereof are specific and detailed, but should not be construed as a limitation on the scope of the invention patent. It should be pointed out that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can also be made, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention should be subject to the appended claims.

Claims (10)

1. An elevator system, comprising:

a car;

the two first guide rails are respectively arranged on two opposite side surfaces of the car, and the first guide rails are positioned in the middle of the side surfaces of the car;

the first rope reversing wheel group and the second rope reversing wheel group are respectively positioned on two sides of a plane formed by connecting lines of central lines of the two first guide rails;

the main machine component comprises a motor, a supporting seat and two traction wheels, the motor is arranged on the supporting seat, the supporting seat is arranged on the wall of a well, the two traction wheels are respectively positioned on two sides of the motor, the motor is used for driving the traction wheels to rotate, and the two traction wheels are respectively arranged corresponding to the first return rope pulley group and the second return rope pulley group; and

the two hoisting ropes are respectively and correspondingly arranged with the first diversion sheave group and the second diversion sheave group, and are respectively and correspondingly wound on the two hoisting sheaves.

2. The elevator system of claim 1, wherein a center of gravity of the car is located on a plane formed by a line connecting centerlines of the two first guide rails; the center of gravity of two first guide rails coincides with the center of gravity of the car.

3. The elevator system of claim 1, wherein the first set of pulley sheaves and the second set of pulley sheaves are symmetrically disposed about a plane formed by a line connecting center lines of the two first guide rails; the first reverse rope pulley sets are more than two, and one of the hoisting ropes is wound on the more than two first reverse rope pulley sets; the second reverse rope pulley sets are more than two, and the other hoisting rope is wound on the second reverse rope pulley sets.

4. The elevator system of claim 1, further comprising a counterweight, a third reverse sheave group, a fourth reverse sheave group, and two second guide rails; the third reverse rope pulley group and the fourth reverse rope pulley group are arranged on the balance weight, and the third reverse rope pulley group and the fourth reverse rope pulley group are also respectively arranged corresponding to the two hoisting ropes; the two second guide rails are respectively arranged on two opposite side surfaces of the counterweight.

5. The elevator system according to claim 4, wherein the two second guide rails are disposed symmetrically with respect to a plane formed by a line connecting center lines of the two first guide rails.

6. The elevator system according to claim 4, further comprising a first rope head base and a second rope head base provided on a hoistway wall, wherein both ends of the hoisting rope are connected to the first rope head base and the second rope head base, respectively, one of the hoisting ropes is provided around the first reverse sheave base, one of the traction sheaves, and the third reverse sheave base in this order, and the other of the hoisting ropes is provided around the second reverse sheave base, the other of the traction sheaves, and the fourth reverse sheave base in this order.

7. The elevator system of claim 1, wherein the first reverse sheave group and the second reverse sheave group are both disposed on a bottom surface or a top surface of the car; a first upright post is arranged on a side beam of the bottom surface of the lift car, and safety tongs matched with the guide rails are arranged on the first upright post; be provided with on the top surface of car with guide rail matched with leads boots on, be provided with on the bottom surface of car with guide rail matched with leads boots down.

8. The elevator system of claim 7, wherein when the first and second sheave assemblies are both disposed on a bottom surface of the car, a bottom surface of the safety gear is closer to the bottom surface of the car relative to bottom surfaces of the sheave brackets of the first and second sheave assemblies, the upper guide shoe is disposed between two cross beams on a top surface of the car, and a top surface of the upper guide shoe is not higher than top surfaces of the cross beams;

when first reverse rope wheelset with second reverse rope wheelset all set up in when on the top surface of car, go up the top surface of leading boots for the diverting pulley support of first diverting pulley subassembly with the top surface of the diverting pulley support of second diverting pulley subassembly is close to more the top surface of car.

9. The elevator system according to any one of claims 1 to 8, wherein the main machine assembly further comprises a brake provided on the support base, a rotating shaft connected to a power output shaft of the motor is provided on the support base, the brake is configured to brake the rotating shaft, and the traction sheave is provided on the rotating shaft.

10. The elevator system of claim 9, wherein the motor and the brake are located between the two traction sheaves; or the motor and the supporting seat are of an integrated structure; or the brake is arranged on one side of one traction sheave, which faces away from the motor.

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