CN209815442U - Traction structure of 12: 1 cargo elevator - Google Patents

Abstract

The utility model belongs to the technical field of the elevator hauls equipment, 12 especially than 1 year goods elevator tow the structure, including the car frame and install the bearing component of car frame top and install the counterweight in car frame side, car frame top be equipped with car top rope wheelset, bearing component on be equipped with car top rope wheelset vertically first spandrel girder, second spandrel girder, third spandrel girder, the counterweight on be equipped with heavy reverse rope wheelset. The utility model discloses can guarantee that the car does not take place the slope when the operation and break away from the guide rail, cooperation bearing assembly and counterweight assembly go up the rope sheave of arranging and the leading wheel has reduced the load of towing the host computer to satisfy the demand that the low-power host computer drags the heavy load elevator, not only energy-conservation but also environmental protection, its stable in structure, load capacity is strong, good balance performance has, very big improvement the life of elevator braking component and bearing member, can the wide application in the middle of the elevator of big tonnage, produce considerable economic value.

Description

Traction Structure of 12 to 1 Freight Elevator

technical field

The utility model belongs to the technical field of elevator traction equipment, in particular to a traction structure of a 12-to-1 freight elevator.

Background technique

The elevator needs a stable balance system during operation. The traction mechanism is one of the important design links of the elevator balance system. In a freight elevator with conventional loads, the car top suspension device is usually located in the middle of the car because the car is not too large. When the load on the bottom of the car is not in the middle of the car and there is a deviation, it will have a great impact on the car, but when the load and the car are too large, it is difficult to ensure the stability of the car by using the traction suspension in the middle of the car. balance.

In recent years, with the acceleration of urbanization and the development of elevator technology, a large number of large and high-rise factory buildings have emerged and equipped with elevators. With the higher floors and the development of industrialization, the load capacity requirements for freight elevators are also increasing. The larger the elevator, the greater the demand for the supporting capacity of the elevator. More and more large-scale equipment, logistics or goods need to be transported in the vertical direction. In the current large-tonnage freight elevator, the traction system mainly adopts 2:1 Or the 4:1 traction ratio winding method has higher requirements on the bearing capacity of the main engine, safety gear and guide rail, and also brings unnecessary mechanical loss and power consumption. Therefore, the elevator with the traditional traction ratio structure is only suitable for the elevator with a small load, and when it is necessary to use a large-tonnage elevator, the suspension of the corresponding traction system needs to be redesigned to increase the running speed of the large-tonnage elevator. Reasonable layout, the traditional traction ratio has high requirements on the load capacity of the main engine, and it cannot guarantee that the car will continue to maintain a stable load under operation, and there is a large safety risk.

Contents of the invention

The purpose of the utility model is to provide a stable structure, high safety factor and a 12 to 1 cargo elevator traction structure that can realize a common permanent magnet synchronous traction machine lifting a large-tonnage elevator.

The technical scheme of the utility model is as follows:

The traction structure of the 12 to 1 freight elevator includes a car frame, a load-bearing assembly installed above the car frame, and a counterweight device installed on the side of the car frame. The top of the car frame is provided with a car roof. The sheave set, the load-bearing assembly is provided with a first load-bearing beam, a second load-bearing beam, and a third load-bearing beam perpendicular to the sheave set on the car top, and the second load-bearing beam and the third load-bearing beam are provided There is a car top winding beam parallel to the car top sheave group, the car top winding beam is provided with a car top winding reel group used in conjunction with the car top sheave group, and the first load-bearing beam is installed There is a rope head plate on the counterweight side and a counterweight guide wheel set, the traction main engine is installed on the first load-bearing beam and the second load-bearing beam, and the front load-bearing beam is installed on the third load-bearing beam and the second load-bearing beam. The car frame guide wheel and the rear car frame guide wheel, the car side rope head plate is installed on the third load-bearing beam, the counterweight reversing sheave set is provided on the counterweight device, and the car top rope The wheel set, the car top reel set, the counterweight guide wheel set, the traction main engine, the front car frame guide wheel, the rear car frame guide wheel, and the counterweight anti-rope wheel set are connected by wire ropes. The heads are respectively fixed on the rope end plate on the car side and the rope end plate on the counterweight side.

Preferably, the car frame is composed of no less than three sets of car frames with symmetrical structures and the same spacing, and the uprights on both sides of the car frame are provided with safety gear and a corresponding set of car guide rails.

Preferably, the car frame includes a front car frame, a middle car frame, and a rear car frame, and the car roof ropes are respectively placed on the front car frame, the middle car frame, and the rear car frame. The front car top sheave, the middle car top sheave, and the rear car top sheave of the wheel set, the front car top sheave, the middle car top sheave, and the rear car top sheave are horizontally wound and placed.

Preferably, the car top reel set is composed of a front reel, a middle reel, and a rear reel, and the front reel, middle reel, and rear reel respectively cooperate with the front car The top sheave, middle car top sheave and rear car top sheave complete the winding action.

Preferably, the counterweight reversing sheave set includes 6 counterweight reversing sheaves, the 6 counterweight reversing sheaves are placed longitudinally and on the same straight line, and the 6 counterweight reversing There are 6 sets of counterweights for balancing with the counterweight below the sheave.

Preferably, the set of counterweight guide wheels includes 6 counterweight guide wheels, and the 6 counterweight guide wheels cooperate with 6 counterweight reversing sheaves to complete the winding action.

Preferably, the steel wire rope on the side of the traction main machine near the car frame goes around the front car top sheave in a downward direction, goes around the front winding wheel in an upward direction, goes back to the front car top sheave in a downward direction, and goes up and down in a longitudinal direction. Go around the front car frame guide wheel, go around the middle car roof sheave downward, go around the middle car top sheave up and down, go around the middle car top sheave down and down, go around the rear car frame guide wheel up and down, Go around the rear car top sheave horizontally, go around the rear winding wheel upward and horizontally, wind back the rear car top sheave downward and horizontally, and fix it on the car side rope head plate upward.

Preferably, the steel wire rope on the side of the counterweight device of the traction main engine turns downwards and crosses in an "S" shape longitudinally to go around 6 counterweight reversing sheaves and 6 counterweight guide wheels, and the steel wire rope is finally driven by the counterweight The reverse rope pulley leads upwards and is fixed on the rope end plate on the counterweight side.

Preferably, the first load-bearing beam, the second load-bearing beam, and the third load-bearing beam are I-beams, and the traction hosts installed on the first load-bearing beam and the second load-bearing beam are permanent magnet synchronous traction machines .

The beneficial effect of the utility model is: the traction structure of the 12 to 1 freight elevator can realize the car to maintain a superior balance state by installing the car top sheave set on the car frame, and can ensure that the car does not tilt when it is running Separated from the guide rail, the sheave and guide wheel arranged on the load-bearing component and the counterweight component reduce the load of the traction main engine, thereby meeting the needs of a small-power main engine to drive a large-load elevator, which is energy-saving and environmentally friendly. In addition, the car frame above The components used for fixing and winding are all installed on the load-bearing beam and winding beam of the load-bearing component, and the winding wheel set on the car top cooperates with the sheave set on the car top to drive, which makes the force point of the car more balanced and helps The neat winding and running force of the wire rope reduces the load requirement of the wire rope. It has a stable structure, strong load capacity, and good balance performance, which greatly improves the service life of elevator braking parts and bearing parts, and can be widely used in large-tonnage elevators, generating considerable economic value.

Description of drawings

Fig. 1 is a schematic diagram of the traction structure of a 12 to 1 freight elevator according to an embodiment of the present invention;

Fig. 2 is a schematic diagram of the winding of the traction structure of the 12:1 freight elevator according to the embodiment of the utility model.

Description of reference numerals: car frame 1, front car frame 11, middle car frame 12, rear car frame 13, safety gear 14, guide rail 15, load-bearing assembly 2, first load-bearing beam 21, second load-bearing beam 22 , the third load-bearing beam 23, the car top winding beam 24, the counterweight side rope head plate 25, the car side rope head plate 26, the traction main engine 27, the counterweight guide wheel group 28, the counterweight guide wheel 29, the counterweight Device 3, counterweight reverse sheave set 31, counterweight reverse sheave 32, counterweight block 33, car top sheave set 4, front car top sheave 41, middle car top sheave 42, rear car top sheave 43 , car top reel set 5, front reel 51, middle reel 52, rear reel 53, front car frame guide wheel 6, rear car frame guide wheel 7.

Detailed ways

As shown in Figures 1-2, the traction structure of the 12 to 1 freight elevator described in this embodiment, the traction structure of the 12 to 1 freight elevator includes a car frame 1 and a car frame installed above the car frame 1. The load-bearing assembly 2 and the counterweight device 3 installed on the side of the car frame, the top of the car frame 1 is provided with a car top sheave set 4, and the car frame 1 includes a front side car frame 11, The middle side car frame 12 and the rear side car frame 13, the front car top sheave 41, the front car top sheave 4, and the car top sheave group 4 are correspondingly placed on the front side car frame 11, the middle side car frame 12, and the rear side car frame 13 respectively. The middle car top sheave 42 and the rear car top sheave 43, the front car top sheave 41, the middle car top sheave 42, and the rear car top sheave 43 are horizontally wound and placed. The first load-bearing beam 21, the second load-bearing beam 22, and the third load-bearing beam 23 perpendicular to the car top sheave group 4 are provided, and the first load-bearing beam 21, the second load-bearing beam 22, and the third load-bearing beam 23 are I-shaped steel, between the second load-bearing beam 22 and the third load-bearing beam 23, a car top winding beam 24 parallel to the car top sheave set 4 is provided, and the car top winding beam 24 is provided with The car top winding wheel set 5 used in conjunction with the car top sheave set 4, the first load-bearing beam 21 is equipped with a counterweight-side rope head plate 25 and a counterweight guide wheel set 28, and the first load-bearing beam 21 and the second load-bearing beam 22 are installed with a traction host 27, the traction host 27 installed on the first load-bearing beam 21 and the second load-bearing beam 22 is a permanent magnet synchronous traction machine, and the third load-bearing The front car frame guide wheel 6 and the rear car frame guide wheel 7 are respectively installed on the beam 23 and the second load-bearing beam 22, and the car side rope head plate 26 is installed on the third load-bearing beam 23, and the counterweight The device 3 is provided with a counterweight reversing sheave set 31, the car top sheave set 4, the car top winding sheave set 5, the counterweight guide wheel set 28, the traction main engine 27, the front car frame guide pulley 6, The rear car frame guide wheel 7 and the counterweight anti-rope pulley group 31 are connected by wire ropes, and the two ends of the wire ropes are respectively fixed on the car side rope head plate 26 and the counterweight side rope head plate 25, and pass through the wire rope on the car side. Installing the car top sheave group 4 on the car frame can keep the car in a superior balance state, and can ensure that the car does not tilt off the guide rail during operation, and cooperate with the sheave and guide wheel arranged on the load-bearing component 2 and counterweight component 3 The load of the traction main engine 27 is reduced, so as to meet the demand of a small-power main engine to drive a large-load elevator, which is energy-saving and environmentally friendly.

In this embodiment, in order to ensure the stability of the car frame on the load of the car, the car frame 1 is composed of no less than three groups of car frames with symmetrical structures and the same spacing. The column is equipped with a safety gear 14 and a corresponding set of car guide rails 15, and each car frame is equipped with a safety gear and a car roof sheave set 4 to form at least 6 strands of suspension to achieve a superior balance of the car .

In this embodiment, the car top reel set 5 is composed of a front reel 51, a middle reel 52, and a rear reel 53. The front reel 51, middle reel 52. The rear winding wheel 53 cooperates with the front car top sheave 41, the middle car top sheave 42, and the rear car top sheave 43 respectively to complete the winding action, which can reduce the vibration caused by the braking device and the motor during the operation of the car. The force is conducive to improving the stability of operation.

In this embodiment, the counterweight reversing sheave set 31 includes 6 counterweight reversing sheaves 32, and the 6 counterweight reversing sheaves 32 are placed longitudinally and on the same straight line. Below the 6 counterweight reversing sheaves 32, there are 6 groups of counterweight blocks 33 that are used for counterweight balance below, and the described counterweight guide wheel group 28 includes 6 counterweight guide wheels 29. A counterweight guide wheel 29 cooperates with six counterweight anti-rope wheels 32 to complete the winding action. Using six sets of counterweight anti-rope wheels 32 and counterweight guide wheels 29 can filter the vibration during the counterweight process and reduce the impact on the elevator. The shock brought by it improves the ride comfort.

In the present embodiment, the wire rope of the traction main machine 27 on the side of the car frame 1 goes around the front car top sheave 41 in a downward direction, the front winding wheel 51 in an upward direction, and turns back in a downward direction. The front car roof sheave 41, goes around the front car frame guide wheel 6 vertically upwards, goes around the middle car top sheave 42 horizontally downwards, goes around the middle winding wheel 52 horizontally upwards, and goes back to the middle car top sheave horizontally downwards 42. Go around the rear car frame guide pulley 7 vertically upward, go around the rear car top sheave 43 horizontally downward, go around the rear winding wheel 53 horizontally upward, go around the rear car top sheave 43 horizontally downward, and fix it on the side of the car upward On the rope end plate 26, the traction main engine 27 leans on the steel wire rope on the counterweight device 3 side and crosses the 6 counterweight reversing sheaves 32 and 6 counterweight guide wheels 29 vertically and longitudinally in an "S" shape. The steel wire rope described above is finally led out by the counterweight anti-sheave 32 and fixed upward on the counterweight side rope head plate 25, so that the small-power main engine can drive the large-load elevator, and the evenly distributed car frame can disperse the force on the single guide rail. Improve the safety factor.

Through the above technical solution, the traction structure of the 12:1 freight elevator is fixed above the car frame 1 and the components used for winding are all installed on the load-bearing beam and winding beam of the load-bearing assembly, and the winding wheel on the car top The group cooperates with the transmission of the sheave group on the car top to make the force point of the car more balanced, which is helpful for the neat winding and running force of the wire rope, and reduces the load requirement of the wire rope. It has a stable structure, strong load capacity, and good balance performance, which greatly improves the service life of elevator braking parts and bearing parts, and can be widely used in large-tonnage elevators, generating considerable economic value.

The above descriptions are only preferred embodiments of the present utility model, and are not therefore limiting the patent scope of the present utility model. Any equivalent structure or equivalent process transformation made by using the specification of the utility model and the contents of the accompanying drawings may be directly or indirectly used in Other relevant technical fields are all included in the patent protection scope of the present utility model in the same way.

Claims (9)

1. The traction structure of a 12:1 freight elevator includes a car frame, a load-bearing assembly installed above the car frame, and a counterweight device installed on the side of the car frame. The top of the car frame is provided with a car top rope The wheel set is characterized in that: the load-bearing assembly is provided with a first load-bearing beam, a second load-bearing beam, and a third load-bearing beam perpendicular to the sheave set on the car top, and the second load-bearing beam and the third load-bearing beam A car top winding beam parallel to the car top sheave set is provided between them, and a car top winding reel set used in conjunction with the car top sheave set is arranged on the car top winding beam. The first load-bearing The counterweight side rope end plate and the counterweight guide wheel set are installed on the beam, the traction host is installed on the first load-bearing beam and the second load-bearing beam, and the third load-bearing beam and the second load-bearing beam are respectively The front car frame guide wheel and the rear car frame guide wheel are installed, the car side rope end plate is installed on the third load-bearing beam, and the counterweight anti-sheave set is provided on the counterweight device. The car top sheave set, car top reel set, counterweight guide wheel set, traction main engine, front car frame guide wheel, rear car frame guide wheel, and counterweight anti-rope pulley set are connected by wire ropes. The two ends of the wire rope are respectively fixed on the car side rope head plate and the counterweight side rope head plate. 2. The traction structure of a 12-to-1 freight elevator as claimed in claim 1, wherein the car frame is composed of no less than three groups of car frames with symmetrical structures and the same spacing, and the The uprights on both sides of the car frame are provided with safety gear and a set of corresponding car guide rails. 3. The traction structure of 12 to 1 freight elevator as claimed in claim 2, characterized in that: said car frame comprises a front side car frame, a middle side car frame, and a rear side car frame, and said The front car top sheave, the middle car top sheave, and the rear car top sheave of the car top sheave set are respectively placed on the front car frame, the middle car frame, and the rear car frame. The front car top sheave , Middle car top sheave and rear car top sheave are horizontally wound. 4. The traction structure of a 12-to-1 freight elevator as claimed in claim 1, characterized in that: the car top reel set is composed of a front reel, a middle reel and a rear reel, The front reel, middle reel and rear reel cooperate with the front car top sheave, middle car top sheave and rear car top sheave respectively to complete the winding action. 5. The traction structure of 12 to 1 freight elevator according to claim 1, characterized in that: said counterweight reversing sheave set includes 6 counterweight reversing sheaves, and said 6 counterweight reversing sheaves The sheave is longitudinally wound and placed on the same straight line, and 6 sets of counterweights are arranged below the 6 counterweight reversing sheaves to coordinate with the counterweight below. 6. The traction structure of a 12-to-1 freight elevator according to claim 1, wherein the set of counterweight guide wheels includes 6 counterweight guide wheels, and the 6 counterweight guide wheels cooperate with 6 counterweight reversing sheaves complete the winding action. 7. The traction structure of a 12-to-1 freight elevator according to claim 1, characterized in that: the steel wire ropes on the side of the traction main machine near the car frame turn downwards and horizontally around the front car roof sheave, upwards Go around the front reel horizontally, go back to the front car roof sheave downward and horizontally, go around the front car frame guide wheel upward and vertically, go around the middle car top sheave downward and horizontally, go around the middle reel Wind down the sheave on the middle car top horizontally, go around the guide wheel of the rear car frame vertically upwards, go around the sheave on the rear car top horizontally downwards, go around the rear winding reel upwards and horizontally, wind back the sheave on the rear car top horizontally downwards, and fix it upwards On the car side rope head plate. 8. The traction structure of a 12-to-1 freight elevator according to claim 1, characterized in that: the steel wire ropes on the side of the traction main machine on the side of the counterweight device successively go downward and longitudinally in an "S" shape and cross around six The counterweight reversing sheave and 6 counterweight guide wheels, and the steel wire rope is finally drawn upwards by the counterweight reversing sheave and fixed on the counterweight side rope end plate. 9. The traction structure of a 12-to-1 freight elevator according to claim 1, wherein the first load-bearing beam, the second load-bearing beam, and the third load-bearing beam are I-beams, and the first load-bearing beam is I-beam. The traction host installed on the first load-bearing beam and the second load-bearing beam is a permanent magnet synchronous traction machine.