阅读说明：本技术 一种电梯钢丝绳张力调整装置 (Elevator wire rope tension adjusting device ) 是由 周海波 于 2021-07-22 设计创作，主要内容包括：本发明公开了一种电梯钢丝绳张力调整装置,包括：电梯轿厢；驱动机构,所述驱动机构设置于所述电梯轿厢上的上方；第一钢丝绳,所述第一钢丝绳的上端与所述驱动机构连接；第二钢丝绳,所述第二钢丝绳的上端与所述驱动机构连接；等力臂杠杆机构,所述等力臂杠杆机构安装于所述电梯轿厢的上端,所述第一钢丝绳的下端与所述等力臂杠杆机构的一端连接,所述第二钢丝绳的下端与所述等力臂杠杆机构的另一端连接。通过对本发明的应用,为卷扬式电梯提供了一种能够自动完成两钢丝绳张力的张力调整装置,有效解决了由于钢丝绳张力不均导致的轿厢失稳现象；且本发明结构简单,造价较低,且尤其适用于小型家用电梯。(The invention discloses an elevator steel wire rope tension adjusting device, which comprises: an elevator car; a drive mechanism disposed above the elevator car; the upper end of the first steel wire rope is connected with the driving mechanism; the upper end of the second steel wire rope is connected with the driving mechanism; the equal-force arm lever mechanism is installed at the upper end of the elevator car, the lower end of the first steel wire rope is connected with one end of the equal-force arm lever mechanism, and the lower end of the second steel wire rope is connected with the other end of the equal-force arm lever mechanism. By applying the tension adjusting device provided by the invention, the tension adjusting device capable of automatically finishing the tension of the two steel wire ropes is provided for the hoisting elevator, and the phenomenon of car instability caused by uneven tension of the steel wire ropes is effectively solved; the invention has simple structure and lower cost, and is particularly suitable for small-sized household elevators.)

1. An elevator wire rope tension adjusting device, comprising:

an elevator car;

a drive mechanism disposed above the elevator car;

the upper end of the first steel wire rope is connected with the driving mechanism;

the upper end of the second steel wire rope is connected with the driving mechanism;

the constant-force arm lever mechanism is arranged at the upper end of the elevator car, the lower end of the first steel wire rope is connected with one end of the constant-force arm lever mechanism, and the lower end of the second steel wire rope is connected with the other end of the constant-force arm lever mechanism;

wherein the driving mechanism drives the elevator car to ascend and descend through the first steel wire rope and the second steel wire rope together;

a first tension is generated at the lower end of the first steel wire rope, and a second tension is generated at the lower end of the second steel wire rope;

when the first tension is larger than the second tension, one end of the equal-force arm lever mechanism is pulled upwards, and the other end of the equal-force arm lever mechanism pulls the lower end of the second steel wire rope downwards so that the first tension and the second tension are balanced.

2. The elevator rope tension adjusting apparatus according to claim 1, wherein the driving mechanism is a winding machine device.

3. The elevator rope tension adjusting apparatus according to claim 1, wherein a line connecting the lower ends of the first and second rope members intersects with a vertical extension line of a center of mass of the elevator car.

4. The elevator rope tension adjustment device of claim 1, wherein the lower ends of the first and second ropes are disposed in geometric symmetry about a top of the elevator car.

5. The elevator rope tension adjustment device of claim 1, wherein the first and second rope are fixedly connected to respective ends of the constant force arm lever mechanism.

6. The elevator rope tension adjusting apparatus according to claim 1, further comprising: and one ends of the two spring rope heads are fixedly connected with two ends of the equal-force arm lever mechanism respectively, and the other ends of the two spring rope heads are fixedly connected with the lower end of the first steel wire rope and the lower end of the second steel wire rope respectively.

7. The elevator rope tension adjustment device of claim 1, wherein the constant arm lever mechanism comprises: the elevator car comprises a rotating shaft, a first swing arm and a second swing arm, wherein the rotating shaft is rotatably installed at the top of the elevator car, the axis of the rotating shaft is arranged along the horizontal direction, one end of the first swing arm is fixedly connected with one end of the rotating shaft, one end of the second swing arm is fixedly connected with the other end of the rotating shaft, the length direction of the first swing arm and the length direction of the second swing arm are both perpendicular to the axis of the rotating shaft, the other end of the first swing arm is fixedly connected with the lower end of a first steel wire rope, the other end of the second swing arm is fixedly connected with the lower end of a second steel wire rope, and the length of the first swing arm is equal to that of the second swing arm.

8. The elevator rope tension adjusting apparatus according to claim 7, wherein the first swing arm and the second swing arm are provided in parallel and extending in opposite directions.

9. The elevator rope tension adjustment device of claim 7, wherein the constant arm lever mechanism further comprises: the elevator car mounting structure comprises two mounting seats, wherein the two mounting seats are fixedly mounted on symmetrical positions of the top of an elevator car respectively, a bearing part is arranged in each mounting seat, and the two mounting seats are rotatably connected with two ends of a rotating shaft through two bearing parts respectively.

10. The elevator rope tension adjustment device of claim 1, wherein the constant arm lever mechanism comprises: articulated seat and lever spare, articulated seat fixed mounting in elevator car's top, the middle part of lever spare rotationally install in on the articulated seat, the axis of rotation of lever spare sets up along the horizontal direction, first wire rope's lower extreme with the one end fixed connection of lever spare, second wire rope's lower extreme with the other end fixed connection of lever spare.

Technical Field

The invention relates to the technical field of elevator equipment, in particular to an elevator steel wire rope tension adjusting device.

Background

The hoisting elevator is limited by a system of the hoisting elevator, so that the hoisting elevator is usually small in load capacity, low in speed, high in the top floor, large in limitation of shaft space such as pit depth and the like, and is generally applied to small elevators such as villa elevators. The hoist side of hoist formula elevator pulls wire rope and often is two, and the hoist side has two fag ends promptly, and two wire rope of hoist during operation can produce the uneven condition of tension because the displacement is different or wire rope elasticity coefficient's difference itself to lead to appearing the car unstability phenomenon. The existing hoisting type elevator usually adopts a movable pulley type structure to overcome the defect, a single or a plurality of movable pulley structures are installed on the upper part or the lower part of a car, the movable pulley type structure substantially adopts a steel wire rope structure, namely, the steel wire rope only has two rope ends on the side of the hoisting machine, and due to the requirement of the diameter ratio of the rope pulley, the rope pulley is usually larger and needs larger installation space, so that the space of the top layer or the space of a pit of the elevator becomes larger, and the elevator is opposite to the villa environment which is compact in civil engineering and does not have more spaces of the top layer and the pit. Although the problem of uneven tension of the steel wire rope is relieved to a certain extent, the trouble of civil engineering size limitation is generated at the same time.

Disclosure of Invention

In view of the above, in order to solve the above problems, an object of the present invention is to provide an elevator rope tension adjusting apparatus, including:

an elevator car;

a drive mechanism disposed above the elevator car;

the upper end of the first steel wire rope is connected with the driving mechanism;

the upper end of the second steel wire rope is connected with the driving mechanism;

the constant-force arm lever mechanism is arranged at the upper end of the elevator car, the lower end of the first steel wire rope is connected with one end of the constant-force arm lever mechanism, and the lower end of the second steel wire rope is connected with the other end of the constant-force arm lever mechanism;

wherein the driving mechanism drives the elevator car to ascend and descend through the first steel wire rope and the second steel wire rope together;

a first tension is generated at the lower end of the first steel wire rope, and a second tension is generated at the lower end of the second steel wire rope;

when the first tension is larger than the second tension, one end of the equal-force arm lever mechanism is pulled upwards, and the other end of the equal-force arm lever mechanism pulls the lower end of the second steel wire rope downwards so that the first tension and the second tension are balanced.

In another preferred embodiment, the drive mechanism is a winch device.

In another preferred embodiment, a line connecting the lower end of the first wire rope and the lower end of the second wire rope intersects with a vertical extension line of the center of mass of the elevator car.

In another preferred embodiment, the lower ends of the first and second wire ropes are disposed in geometric symmetry about the top of the elevator car.

In another preferred embodiment, the first wire rope and the second wire rope are respectively fixedly connected with two ends of the equal-force arm lever mechanism.

In another preferred embodiment, the method further comprises: and one ends of the two spring rope heads are fixedly connected with two ends of the equal-force arm lever mechanism respectively, and the other ends of the two spring rope heads are fixedly connected with the lower end of the first steel wire rope and the lower end of the second steel wire rope respectively.

In another preferred embodiment, the equal force arm lever mechanism comprises: the elevator car comprises a rotating shaft, a first swing arm and a second swing arm, wherein the rotating shaft is rotatably installed at the top of the elevator car, the axis of the rotating shaft is arranged along the horizontal direction, one end of the first swing arm is fixedly connected with one end of the rotating shaft, one end of the second swing arm is fixedly connected with the other end of the rotating shaft, the length direction of the first swing arm and the length direction of the second swing arm are both perpendicular to the axis of the rotating shaft, the other end of the first swing arm is fixedly connected with the lower end of a first steel wire rope, the other end of the second swing arm is fixedly connected with the lower end of a second steel wire rope, and the length of the first swing arm is equal to that of the second swing arm.

In another preferred embodiment, the first swing arm and the second swing arm are arranged in parallel and extending in opposite directions.

In another preferred embodiment, the equal force arm lever mechanism further comprises: the elevator car mounting structure comprises two mounting seats, wherein the two mounting seats are fixedly mounted on symmetrical positions of the top of an elevator car respectively, a bearing part is arranged in each mounting seat, and the two mounting seats are rotatably connected with two ends of a rotating shaft through two bearing parts respectively.

In another preferred embodiment, the equal force arm lever mechanism comprises: articulated seat and lever spare, articulated seat fixed mounting in elevator car's top, the middle part of lever spare rotationally install in on the articulated seat, the axis of rotation of lever spare sets up along the horizontal direction, first wire rope's lower extreme with the one end fixed connection of lever spare, second wire rope's lower extreme with the other end fixed connection of lever spare.

Due to the adoption of the technical scheme, compared with the prior art, the invention has the following positive effects: by applying the tension adjusting device provided by the invention, the tension adjusting device capable of automatically finishing the tension of the two steel wire ropes is provided for the hoisting elevator, and the phenomenon of car instability caused by uneven tension of the steel wire ropes is effectively solved; the invention has simple structure and lower cost, and is particularly suitable for small-sized household elevators.

Drawings

Fig. 1 is a first embodiment of an elevator rope tension adjusting apparatus according to the present invention;

fig. 2 shows a second embodiment of an elevator rope tension adjusting apparatus according to the present invention.

In the drawings:

1. an elevator car; 2. a first wire rope; 3. a second wire rope; 4. a rotating shaft; 5. a first swing arm; 6. a second swing arm; 7. a mounting seat; 8. a hinged seat; 9. a lever member.

Detailed Description

The invention is further described with reference to the following drawings and specific examples, which are not intended to be limiting.

As a first embodiment of the present invention, as shown in fig. 1, there is shown an elevator rope tension adjusting apparatus according to a preferred embodiment, including: an elevator car 1; the driving mechanism is arranged above the elevator car 1; the upper end of the first steel wire rope 2 is connected with the driving mechanism; the upper end of the second steel wire rope 3 is connected with the driving mechanism; the equal-force arm lever mechanism is arranged at the upper end of the elevator car 1, the lower end of the first steel wire rope 2 is connected with one end of the equal-force arm lever mechanism, and the lower end of the second steel wire rope 3 is connected with the other end of the equal-force arm lever mechanism; the driving mechanism drives the elevator car 1 to ascend and descend through the first steel wire rope 2 and the second steel wire rope 3; a first tension is generated at the lower end of the first steel wire rope 2, and a second tension is generated at the lower end of the second steel wire rope 3; when the first tension is greater than the second tension, one end of the equal-force arm lever mechanism is pulled up, and the other end of the equal-force arm lever mechanism pulls down the lower end of the second steel wire rope 3 so that the first tension and the second tension are balanced.

Specifically, the working principle of the invention is that in the working process of the winding type elevator, the first steel wire rope 2 and the second steel wire rope 3 cause different tensions at the positions where the outgoing line is connected with the elevator car 1 due to different displacements or differences of elastic coefficients of the first steel wire rope and the second steel wire rope in the using process, and one of the tensions is large, and the other tension is small, so that the elevator car 1 is unstable and shakes. The invention provides a tension adjusting device arranged on a steel wire rope of an elevator, which mainly levels the tension of two ends by means of a first steel wire rope 2 and a second steel wire rope 3 which move independently and by adopting a lever principle. Further, as a preferred embodiment, the driving mechanism is a winch device.

Further, as a preferred embodiment, a connection line of the lower ends of the first and second wire ropes 2 and 3 intersects with a vertical extension line of the center of mass of the elevator car 1.

Further, as a preferred embodiment, the lower ends of the first and second wire ropes 2 and 3 are disposed in geometric symmetry with respect to the top of the elevator car 1.

Further, as a preferred embodiment, the first wire rope 2 and the second wire rope 3 are respectively fixedly connected with two ends of the equal-force arm lever mechanism.

Further, as a preferred embodiment, the method further comprises: and one ends of the two spring rope heads are respectively and fixedly connected with the two ends of the equal-force arm lever mechanism, and the other ends of the two spring rope heads are respectively and fixedly connected with the lower end of the first steel wire rope 2 and the lower end of the second steel wire rope 3.

Further, as a preferred embodiment, the constant force arm lever mechanism includes: axis of rotation 4, first swing arm 5 and second swing arm 6, axis of rotation 4 rotationally installs in elevator car 1's top, the axis of rotation 4 sets up along the horizontal direction, the one end of first swing arm 5 and the one end fixed connection of axis of rotation 4, the one end of second swing arm 6 and the other end fixed connection of axis of rotation 4, the length direction of first swing arm 5 and the length direction of second swing arm 6 all set up with the axis of rotation 4 is perpendicular, the other end of first swing arm 5 and first wire rope 2's lower extreme fixed connection, the other end of second swing arm 6 and second wire rope 3's lower extreme fixed connection, and the length of first swing arm 5 equals with the length of second swing arm 6.

Further, in the practical use process, as for the first embodiment, the first swing arm 5 and the second swing arm 6 are two lever arms, the axis of the rotating shaft 4 is the corresponding rotation center of the lever, and the bending moment generated by the uneven tension is transmitted through the rotation of the rotating shaft 4, so that the first swing arm 5 and the second swing arm 6 move in opposite directions, that is, when the first tension is greater than the second tension, the first swing arm 5 is pulled up, and the second swing arm 6 pulls the second steel wire rope 3 downward until the first tension and the second tension are equal. And when the elevator car 1 moves up and down, the first swing arm 5 and the second swing arm 6 slightly swing at all times, namely the rotating shaft 4 rotates at all times, so that the lower end of the first steel wire rope 2 and the lower end of the second steel wire rope 3 are in a uniform stress state.

Further, as a preferred embodiment, the first swing arm 5 and the second swing arm 6 are disposed in parallel and extending in opposite directions.

Further, as a preferred embodiment, the equal-force arm lever mechanism further comprises: two installation seats 7, two installation seats 7 are respectively fixedly installed on the top symmetrical positions of the elevator car 1, a bearing part is arranged in each installation seat 7, and the two installation seats 7 are respectively and rotatably connected with two ends of the rotating shaft 4 through two bearing parts.

Further, as a preferred embodiment, the hoisting machine device includes: the elevator shaft comprises a winch body, a first winding drum and a second winding drum, wherein the winch device is arranged at the top of the elevator shaft, the output end of the winch device is connected with the first winding drum and the second winding drum respectively, the winch device drives the first winding drum and the second winding drum to rotate synchronously, the upper end of a first steel wire rope 2 is wound on the first winding drum, and the upper end of a second steel wire rope 3 is wound on the second winding drum.

Further, as a preferred embodiment, the elevator car 1 of the invention can be arranged in an elevator shaft in a vertically-movable manner, the outer wall of the elevator car 1 is provided with a sliding block, the inner wall of the elevator shaft is provided with a sliding rail extending in the vertical direction, and the sliding block is connected with the sliding rail in a sliding manner, so that the horizontal circular motion limit of the elevator car 1 is formed, and the elevator car 1 is more stable when the tension of the first steel wire rope 2 and the second steel wire rope 3 changes.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope and the implementation manner of the present invention.

The present invention also has the following embodiments in addition to the above:

as a second embodiment of the present invention, as shown in fig. 2, a further embodiment of the present invention, the equal-force arm lever mechanism includes: articulated seat 8 and lever piece 9, articulated seat 8 fixed mounting is in elevator car 1's top, and the middle part of lever piece 9 is rotationally installed on articulated seat 8, and the axis of rotation 4 of lever piece 9 sets up along the horizontal direction, the lower extreme of first wire rope 2 and the one end fixed connection of lever piece 9, the lower extreme of second wire rope 3 and the other end fixed connection of lever piece 9.

Further, the second embodiment is the same principle as the first embodiment, but the lever is formed differently, and the above-mentioned middle position of the lever member 9 is one lever arm from one end thereof, and the middle position of the lever member 9 is the other lever arm from the other end thereof.

While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention.