CN110668290B - Bow-shaped elevator load-bearing structure - Google Patents

Abstract

The invention relates to the technical field of elevator equipment, in particular to an arch-shaped elevator bearing structure which comprises a main bearing assembly, an auxiliary bearing assembly and a steel wire rope, wherein the main bearing assembly and the auxiliary bearing assembly are respectively arranged on two sides of a lift car for loading, the main bearing assembly is provided with a first spandrel girder for installing a traction machine and a rope head plate, the first spandrel girder is provided with a counterweight diverting pulley position matched with a counterweight for use, the middle part of the first spandrel girder is connected with a second spandrel girder parallel to the first spandrel girder, and the auxiliary bearing assembly is provided with a third spandrel girder parallel to the second spandrel girder. The invention can meet the traction requirement of the freight elevator without machine room of more than 9 tons, so that the lift car is always kept in a superior balance state under a large load, the use experience of users is improved, the structure is stable, the safety coefficient is high, the balance performance and traction capacity are excellent, and the invention is beneficial to generating considerable economic value.

Description

Bow-shaped elevator load-bearing structure

Technical field

The present invention relates to the technical field of elevator equipment, in particular to the bow-shaped elevator load-bearing structure.

Background technique

The elevator needs a stable weight balance system during operation. The load-bearing structure is one of the important design links of the elevator balance system. It is related to the normal, stable and continuous operation of the elevator and is an important guarantee for the safety of the elevator operation. When the elevator is running, the power is provided by the traction machine placed on the load-bearing structure. The traction machine affects the running speed and load-bearing capacity of the elevator. Since the traction machine is installed on the load-bearing beam, when the connection with the load-bearing frame is not enough Strong, and the host machine bears a large force, which will cause the load-bearing frame to loosen and deform, produce abnormal noise during the elevator lifting process, and reduce safety. At present, the domestic traction machine can carry a smaller range, and with the use range and occasions of the elevator With the continuous expansion of large-scale storage equipment and the continuous updating of large-scale storage equipment, the market hopes that elevators can have greater carrying capacity. For machine roomless elevators, as the tonnage increases, the requirements for the cooperation between the load-bearing beam and the traction machine are getting higher and higher. It is very difficult to achieve good balance for large load machine roomless elevators of more than 9 tons on the market. The common problems of shaking and tilting during heavy loads pose a huge challenge to the stability of load-bearing structures that meet the requirements of large tonnage. In order to ensure the safe operation of elevators, there is an urgent need to improve the existing load-bearing structures.

Contents of the invention

One of the purposes of the present invention is to provide a bow-shaped elevator load-bearing structure with stable structure, high safety factor and good balance effect to meet the needs of machine roomless freight elevators of more than 9 tons in order to address the defects and shortcomings of the existing technology.

The technical solution of the present invention is as follows:

The bow-shaped elevator load-bearing structure is installed above the car and includes a main load-bearing component and an auxiliary load-bearing component as well as a steel wire rope. The main load-bearing component and the auxiliary load-bearing component are respectively placed on both sides of the car for load use. The main load-bearing component has an installation The first load-bearing beam of the traction machine and the rope head plate is provided with a counterweight reverse rope wheel position used in conjunction with the counterweight. The middle part of the first load-bearing beam is connected to a third load-bearing beam parallel to the first load-bearing beam. Two load-bearing beams, the secondary load-bearing assembly has a third load-bearing beam arranged parallel to the second load-bearing beam, the second load-bearing beam and the third load-bearing beam are higher than the first load-bearing beam, the third load-bearing beam The first car top wheel position and the third car top wheel position are arranged in sequence from front to back, and the second load-bearing beam is provided with a position between the first car top wheel position and the third car top wheel position. The second car top wheel position.

Preferably, at least two car top sheaves are installed on the first car top wheel position, the second car top wheel position, and the third car top wheel position, and the installation distance between the two car top sheaves is adjustable. on load-bearing beams.

Preferably, the installation position of the rope head plate on the first load-bearing beam and the third car top wheel position on the third load-bearing beam are arranged in transverse alignment, and the installation position of the traction machine on the first load-bearing beam is preferably The position of the first car roof wheel on the third load-bearing beam is set in transverse alignment.

Preferably, the steel wire rope is sequentially led out from the rope head plate on the first load-bearing beam and goes around the car downwards and longitudinally, around the third car top wheel position upwards, laterally around the car downwards, and longitudinally upwards. The second car roof wheel position goes downward and laterally around the car, upwards and longitudinally around the first car top wheel position, downward and laterally around the car, and upwardly connected to the traction machine to form a "bow" winding structure.

Preferably, the first car top wheel position, the second car top wheel position, the third car top wheel position, and the counterweight reverse sheave position are respectively provided with front, rear, left, right, and separate corresponding sheaves. The upper shielding protective wheel cover is provided with a connecting cover between adjacent protective wheel covers.

Preferably, the protective wheel cover and the connecting cover are each composed of a plurality of independent panels, and each panel can be separately detached.

Preferably, both ends of the second load-bearing beam are respectively fixed to the upper part of the first load-bearing beam through transverse channel steel, and the first load-bearing beam is provided with a reinforcement on the side of the second load-bearing beam for connecting the bottom of the second load-bearing beam. plate.

Preferably, the first car top wheel position, the second car top wheel position, the third car top wheel position, and the counterweight reverse rope wheel position are respectively provided with rope retaining angles on both sides, and the rope retaining angle steel passes through The bolt structure is fixed to the load-bearing beam.

The beneficial effects of the present invention are: the bow-shaped elevator load-bearing structure has a stable load-bearing structure by arranging the second car top wheel position to form a triangular alignment relationship between the first car top wheel position and the third car top wheel position. The force structure, combined with the alignment arrangement of the rope head plate and the traction machine, forms a "bow" type winding, which can meet the traction requirements for machine roomless freight elevators of more than 9 tons, so that the car can always remain in place under large loads. The superior balance state helps to improve the smoothness of the elevator operation, and the windings with the same function are parallel to each other, the longitudinal windings and the transverse windings are perpendicular to each other, and the application of the "bow" structure will share the stress of adjacent stress positions with each other. , reduce the jitter of the car body before and after the car enters and exits the process of people and cargo, and improves the user experience. It has a stable structure, high safety factor, excellent balance performance and traction capacity, and is conducive to generating considerable economic value.

Description of the drawings

Figure 1 is a schematic three-dimensional view of the load-bearing structure of a bow-shaped elevator according to an embodiment of the present invention;

Figure 2 is a schematic three-dimensional view of the bow-shaped elevator load-bearing structure from another angle according to the embodiment of the present invention;

Figure 3 is a schematic diagram of the installation of the bow-shaped elevator load-bearing structure according to the embodiment of the present invention;

Figure 4 is a schematic diagram of the connection between the main load-bearing component and the steel wire rope according to the embodiment of the present invention;

Figure 5 is a schematic diagram of the connection between the auxiliary load-bearing component and the steel wire rope according to the embodiment of the present invention.

Detailed ways

The technical solutions in the embodiments of the present invention are clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the protection scope of the present invention.

As shown in Figures 1 to 5, the bow-shaped elevator load-bearing structure in the embodiment of the present invention is installed above the car 1 and includes a main load-bearing component 2, an auxiliary load-bearing component 3 and a steel wire rope 4. The main load-bearing component 2 and the auxiliary load-bearing assembly 3 are respectively placed on both sides of the car 1 for load use. The main load-bearing assembly 2 has a first load-bearing beam 22 for installing the traction machine 20 and the rope head plate 21. The first load-bearing beam 22 is provided with a matching counterweight. The counterweight reverse rope wheel position 23 is used. The middle part of the first load-bearing beam 22 is connected with a second load-bearing beam 24 parallel to the first load-bearing beam 22. The auxiliary load-bearing assembly 3 has a second load-bearing beam 24 parallel to the second load-bearing beam 24. The third load-bearing beam 30 is provided with the same length as the first load-bearing beam 22. The second load-bearing beam 24 and the third load-bearing beam 30 are higher than the first load-bearing beam 22. The beam 30 is provided with a first car top wheel position 51 and a third car top wheel position 53 in sequence from front to back, and the third load-bearing beam 30 is located between the first car top wheel position 51 and the third car top wheel position 53 A two-way speed limiter 31 is provided, and the second load-bearing beam 24 is provided with a second car top wheel position 52 positioned between the first car top wheel position 51 and the third car top wheel position 53. The installation position of the rope head plate 21 on the first load-bearing beam 22 and the third car top wheel position 53 on the third load-bearing beam 30 are set in transverse alignment. The installation position of the traction machine 20 on the first load-bearing beam 22 The position is horizontally aligned with the first car roof wheel position 51 on the third load-bearing beam 30. A shock-absorbing rubber and pad assembly is provided between the traction machine 20 and the first load-bearing beam 22. By placing the second car roof The wheel position 52 is positioned between the first car top wheel position 51 and the third car top wheel position 53 to form a triangular positioning relationship, and has a stable force-bearing structure. The steel wire rope 4 is sequentially moved from the first load-bearing beam 22 The rope head plate 21 is led out to bypass the car 1 horizontally downward, longitudinally upward to bypass the third car roof wheel position 53, downward and horizontally to bypass the car 1, and longitudinally upward to bypass the second car roof wheel position 52, and downward Laterally around the car 1, upward and longitudinally around the first car top wheel position 51, downward and laterally around the car 1, and upwardly connected to the traction machine 20 to form a "bow" winding structure, the first car top wheel position 51, The second car top wheel position 52 and the third car top wheel position 53 have a symmetrical structure based on the center line of the car 1. At the same time, according to the different depths of the car 1, the spacing can be adjusted to make the eight stress points on the car 1 evenly distributed. This makes the structural design more rational, thereby meeting the traction requirements for machine room-less cargo elevators of more than 9 tons, allowing the car 1 to always maintain a superior balance state under large loads, and helping to improve the smoothness of the elevator's operation.

In this embodiment, at least two car top sheaves 54 are installed on the first car top wheel position 51, the second car top wheel position 52, and the third car top wheel position 53. The installation spacing of the wheels 54 is adjustable and arranged on the load-bearing beam. The number of corresponding car top sheaves 54 can be increased according to the requirements of the car top wheel position length, so as to increase the stress surface and reduce the amplitude.

Furthermore, the second load-bearing beam 24 on the structure is higher than the first load-bearing beam 22, so that the counterweight reverse rope wheel position 23 on the first load-bearing beam 22 and the second car top wheel position 52 on the second load-bearing beam 24 are generated. The upper and lower misalignment realizes a height difference structure in which the installation position of the main load-bearing component 2 is lower than that of the auxiliary load-bearing component 3, so that the car roof guardrails can successfully avoid interference, greatly improving the utilization rate of the top floor, reducing the required height of the top floor, and making the elevator structure more stable. Compact and reasonable.

In this embodiment, the first car top wheel position 51, the second car top wheel position 52, the third car top wheel position 53, and the counterweight anti-rope wheel position 23 are respectively provided with separate front wheels corresponding to the sheaves. , rear, left, right and upper protective wheel covers 6, a connecting cover 60 is provided between adjacent protective wheel covers 6, the protective wheel cover 6 and the connecting cover 60 are composed of multiple independent panels. And each panel can be disassembled separately, which facilitates disassembly, maintenance and structural heat dissipation on one side in actual use.

In this embodiment, the two ends of the second load-bearing beam 24 are respectively fixed to the upper part of the first load-bearing beam 22 through transverse channel steel. The first load-bearing beam 22 is provided with a connection on the side of the second load-bearing beam 24. The reinforcing plate 25 at the bottom of the second load-bearing beam 24. The use of the reinforcing plate 25 can improve the stability of the connection between the first load-bearing beam 22 and the second load-bearing beam 24, and the use of the reinforcing plate 25 and channel steel can reduce the number of the second load-bearing beam. 24 structure materials.

In this embodiment, the first car top wheel position 51, the second car top wheel position 52, the third car top wheel position 53, and the counterweight reverse rope wheel position 23 are respectively provided with rope retaining angles 26 on both sides. , the rope retaining angle 26 is fixed on the load-bearing beam through a bolt structure. Such an arrangement can reduce the beating amplitude of the wire rope 4, thereby achieving a smoother operation effect.

Through the above technical solution, the bow-shaped elevator load-bearing structure makes the same-function windings parallel to each other, the longitudinal windings and the transverse windings are perpendicular to each other. The application of the "bow" structure will share the forces of adjacent stress positions with each other, reducing the car's weight. 1. The front and rear vibrations of the box during the entry and exit of people and goods improve the user experience. Its structure is stable, has a high safety factor, and has excellent balance performance and traction capabilities, which is conducive to generating considerable economic value.

The above are only preferred embodiments of the present invention, and do not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the description and drawings of the present invention, or directly or indirectly applied to other related The technical fields are all equally included in the scope of patent protection of the present invention.

Claims (5)

1. The bow-shaped elevator load-bearing structure is installed above the car and includes main load-bearing components and auxiliary load-bearing components as well as steel wire ropes. The main load-bearing components and auxiliary load-bearing components are placed on both sides of the car for load use. The main load-bearing components have The first load-bearing beam is used to install the traction machine and the rope head plate. The first load-bearing beam is provided with a counterweight reverse rope pulley position used in conjunction with the counterweight. It is characterized in that: the middle part of the first load-bearing beam is connected to the first load-bearing beam. The second load-bearing beam is parallel to the load-bearing beam. The auxiliary load-bearing assembly has a third load-bearing beam arranged parallel to the second load-bearing beam. The second load-bearing beam and the third load-bearing beam are higher than the first load-bearing beam. The third load-bearing beam is provided with the first car top wheel position and the third car top wheel position in sequence from front to back, and the second load-bearing beam is provided with the first car top wheel position and the third car top wheel position. The second car top wheel position between the wheel positions; At least two car top sheaves are installed on the first car top wheel position, the second car top wheel position, and the third car top wheel position. The installation distance between the two car top sheaves is adjustable and is set on the load-bearing beam. superior; The installation position of the rope head plate on the first load-bearing beam and the third car top wheel position on the third load-bearing beam are set in transverse alignment, and the installation position of the traction machine on the first load-bearing beam is in alignment with the third car top wheel position. The first car roof wheel position on the load-bearing beam is set in transverse alignment; The steel wire rope is sequentially led out from the rope head plate on the first load-bearing beam and goes downward and laterally around the car, upward and longitudinally around the third car top wheel position, downward and laterally around the car, and upward and longitudinally around the second car. The top wheel position, downwards and transversely around the car, upwards and longitudinally around the first car top wheel position, downwards and transversely around the car, and upwards connected to the traction machine to form a "bow" winding structure. 2. The bow-shaped elevator load-bearing structure according to claim 1, characterized in that: the first car top wheel position, the second car top wheel position, the third car top wheel position, and the counterweight anti-rope wheel position. There are protective wheel covers respectively corresponding to the front, rear, left, right and upper shields of the sheaves, and connecting covers are provided between adjacent protective wheel covers. 3. The bow-shaped elevator load-bearing structure according to claim 2, characterized in that: the protective wheel cover and the connecting cover are respectively composed of a plurality of independent panels, and each panel can be disassembled separately. 4. The bow-shaped elevator load-bearing structure as claimed in claim 1, characterized in that: both ends of the second load-bearing beam are respectively fixed to the upper part of the first load-bearing beam through transverse channel steel, and the first load-bearing beam A reinforcing plate for connecting the bottom of the second load-bearing beam is provided on the side of the second load-bearing beam. 5. The bow-shaped elevator load-bearing structure according to claim 1, characterized in that: the first car top wheel position, the second car top wheel position, the third car top wheel position, and the counterweight anti-rope wheel position. There are rope retaining angles on both sides, and the rope retaining angles are fixed on the load-bearing beams through bolt structures.