CN210944386U

CN210944386U - Disconnected monitoring devices of pine of elevator rope and elevator

Info

Publication number: CN210944386U
Application number: CN201921826311.8U
Authority: CN
Inventors: 李印; 徐斌; 朱政政; 范彦举
Original assignee: Joylive Elevator Co ltd
Current assignee: Joylive Elevator Co ltd
Priority date: 2019-10-28
Filing date: 2019-10-28
Publication date: 2020-07-07
Anticipated expiration: 2029-10-28

Abstract

The utility model belongs to the technical field of the elevator, a disconnected monitoring devices of pine and elevator of elevator rope is disclosed, this disconnected monitoring devices of pine includes: the device comprises a support fixedly connected with a rope beam of a fixed rope head assembly, a detection switch fixedly connected with the support and in communication connection with an elevator control system, and an operating rod hinged with the support. The utility model provides an elevator rope's pine monitoring devices and elevator absolutely, can cross the pine or when splitting at arbitrary rope of elevator, borrow the effect of stretching by the fag end spring in the fag end subassembly, make the pull rod top of fag end subassembly move the break-make state of moving pole in order to switch over detection switch, the elevator rope takes place not hard up or the fracture is known according to the switching of the break-make state of the safety circuit at detection switch place to the control system of elevator, in time, the system stops the elevator, realize the monitoring of elevator rope's pine absolutely, avoid taking place the incident that becomes hard up or fracture arouses because of the elevator rope takes place.

Description

Disconnected monitoring devices of pine of elevator rope and elevator

Technical Field

The utility model relates to an elevator technical field especially relates to a disconnected monitoring devices of pine of elevator rope and elevator.

Background

Traction elevators generally use more than two wire ropes to lift the car, the ends of which are fixed to the car or to the rope beam of the counterweight by means of a rope head assembly. Generally, the head assembly has pull rods connected to the respective steel wire ropes one by one, the tail ends of the pull rods penetrate through the car or the counterweight rope beam and are fastened by double nuts, and springs having both ends respectively abutted against the rope beam and the double nuts are inserted into the pull rods to secure the tension of the steel wire ropes.

When one of the steel wire ropes for lifting the car is loosened or broken, the other steel wire ropes can still be well connected with the rope head assembly and keep tension, namely the elevator can still continue to operate, and the steel wire ropes are easy to cause elevator faults and even safety accidents when being operated under long-time overload. Therefore, it is necessary to manually check the elevator in a state where the elevator is stopped periodically to ensure safe operation of the elevator.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a disconnected monitoring devices of pine of elevator rope and elevator to solve above-mentioned problem.

To achieve the purpose, the utility model adopts the following technical proposal: an elevator rope slack monitoring device, comprising:

the bracket is fixedly connected with the rope beam for fixing the rope head assembly;

the detection switch is fixedly connected with the bracket and is in communication connection with an elevator control system;

and the operating rod is hinged to the support, the operating rod comprises a first end part and a second end part which are respectively positioned at two sides of the hinged position of the operating rod and the support, the first end part of the operating rod is opposite to the pull rod of the rope head assembly, and the second end part of the operating rod is opposite to the detection switch, so that the operating rod can be driven by the pull rod and can be switched to the on-off state of the detection switch when preset displacement is generated.

Preferably, the end of the rope tensioned by the rope head assembly is arranged downwards, the operating rod is positioned below the rope head assembly, and the loosening monitoring device further comprises an elastic assembly connected with the operating rod to support the operating rod.

Preferably, the elastic assembly comprises a bolt fixedly connected with the support, the bolt penetrates through the operating rod, the head of the bolt is located above the operating rod, a rod part of the bolt located below the operating rod is sleeved with a support spring, and the tail of the bolt is spirally provided with double nuts to adjust the extension length of the support spring.

Preferably, the shank of the bolt is unthreaded.

Preferably, the through hole for inserting the bolt into the operating rod is a strip-shaped hole.

Preferably, the lever is hinged to the bracket by a hinge, the hinge being disposed adjacent to the bolt.

Preferably, the support is provided with a plurality of mounting holes fixedly connected with the rope beam, and the mounting holes are arranged in the vertical direction.

Preferably, the mounting hole is a strip-shaped hole extending in the vertical direction.

Preferably, the end of the rope tensioned by the rope head assembly is arranged upwards, and the operating rod is positioned above the rope head assembly.

The utility model discloses still adopt following technical scheme: an elevator comprises a car, a rope beam, a rope head assembly and the looseness monitoring device.

The utility model has the advantages that:

the utility model provides an elevator rope's pine monitoring devices and elevator absolutely, can cross the pine or when splitting at arbitrary rope of elevator, borrow the effect of stretching by the fag end spring in the fag end subassembly, make the pull rod top of fag end subassembly move the break-make state of moving pole in order to switch over detection switch, the elevator rope takes place not hard up or the fracture is known according to the switching of the break-make state of the safety circuit at detection switch place to the control system of elevator, in time, the system stops the elevator, realize the monitoring of elevator rope's pine absolutely, avoid taking place the incident that becomes hard up or fracture arouses because of the elevator rope takes place.

Drawings

Fig. 1 is a schematic view of an assembly structure of a loosening and breaking monitoring device and an elevator rope beam in an embodiment of the present invention;

FIG. 2 is a schematic view of a portion of the enlarged structure at A in FIG. 1;

fig. 3 is a schematic structural diagram of a bracket according to an embodiment of the present invention.

In the figure:

1. a rope beam; 2. a rope end; 3. a rope head assembly; 31. a pull rod; 32. a rope end spring;

10. a support; 101. mounting holes; 20. a detection switch; 30. a lever is operated; 40. an elastic component; 401. a bolt; 402. a support spring; 403. double nuts; 50. and (4) a hinge.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", etc. are used in an orientation or positional relationship based on that shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

Referring to fig. 1, the elevator rope loosening and breaking monitoring device provided in this embodiment is disposed on a rope beam 1 of an elevator car or a counterweight, the rope beam 1 is further provided with a rope end assembly 3 for fixing an end 2 of an elevator rope, and the loosening and breaking monitoring device includes a support 10 fixedly connected to one side of the rope beam 1, a detection switch 20 fixed on the support 10, and an operating rod 30 hinged to a bottom of the support 10. The hinge point of the operating rod 30 and the bracket 10 is not located at the end of the operating rod 30, one end of the operating rod 30 is opposite to the pull rod 31 of the rope assembly 3, and the other end of the operating rod 30 is opposite to the detection switch 20. That is, when any rope is loosened or broken too much, due to the stretching action of the rope head spring 32 in the rope head assembly 3, the pull rod 31 can move in the direction away from the rope (i.e. in the direction towards the operating rod 30), and further the operating rod 30 is pushed to swing around the hinged point of the operating rod and the support 10, the other side of the operating rod 30 can act on the detection switch 20, the detection switch 20 is connected to the control system of the elevator in a communication manner, the looseness or the breakage of the elevator rope can be judged and known through the switching signal of the on-off state of the detection switch 20, the elevator is stopped in time, the looseness and the breakage monitoring of the elevator rope are realized, and the safety accident caused by the looseness or the breakage of the elevator rope is avoided.

In order to avoid the false alarm of the detection switch 20 caused by the slight fluctuation of the tension degree of the rope and the rope head assembly 3 during the running process of the elevator, especially the starting and stopping process, the distance between the pull rod 31 and the operating rod 30 and the distance between the detection switch 20 and the operating rod 30 can be adjusted, so that the operating rod 30 can trigger the on-off state of the detection switch 20 when the pull rod 31 moves at least beyond the maximum allowable range of the fluctuation.

In particular, referring to fig. 1, the slack monitoring device can be fitted into an elevator with a traction ratio of 1:1, i.e. with the rope end 2 tensioned by the rope head assembly 3 directed downwards. In order to maintain the normal working posture of the operation lever 30, an elastic member 40 connected to the operation lever 30 to support the operation lever 30 may be provided. For example, as shown in fig. 2, the elastic assembly 40 may include a bolt 401 having a head fixedly connected to the bracket 10 and extending downward, wherein a shaft of the bolt 401 extends through the operation rod 30 to guide the operation rod 30 when the operation rod 30 swings. A supporting spring 402 is sleeved on the part of the rod part of the bolt 401, which is positioned below the operating rod 30, a double nut 403 is screwed on the tail part of the lower end of the rod part of the bolt 401, and the extension length of the supporting spring 402 can be adjusted by adjusting the double nut 403, so as to keep the normal working posture of the operating rod 30. Preferably, the shaft of the bolt 401 may not be provided with threads, so as to avoid the threads from catching the operation rod 30. Meanwhile, the through hole of the operating rod 30 for inserting the rod portion of the bolt 401 may be a strip-shaped hole, so as to avoid that the operating rod 30 cannot swing to an angle capable of triggering the on-off state of the switch detection switch 20.

When the operating rod 30 is driven to generate the same swing angle, the farther the support spring 402 is from the hinge point between the operating rod 30 and the bracket 10, the greater the degree of compression of the support spring 402, the greater the pressure required by the operating rod 30 to overcome the extension force of the support spring 402, in other words, the smaller the compression degree of the support spring 402, the smaller the pressure required by the operating rod 30 to overcome the extension force of the support spring 402 may be, when the support spring 402 is only loosened, the pull rod 31 may not apply the full self-weight to the operating rod 30, that is, the pressure enough to overcome the extension force of the support spring 402 may not be applied to the operating rod 30, and the detection switch 20 may not be triggered. The wear of the ropes is usually caused by the excessive tension of other ropes caused by the loosening of individual ropes and the poor friction with the rope sheave, so the hinge 50 can be arranged close to the bolt 401 to minimize the extension force of the supporting spring 402 to be overcome when the lever 30 is swung to a predetermined angle.

In addition, referring to fig. 3, a plurality of mounting holes 101 for fixedly coupling the bracket 10 to the rope beam 1 may be provided, and the plurality of mounting holes 101 may be arranged in a vertical direction, so that it is possible to conveniently adjust a distance between the manipulating rod 30 hinged to the bracket 10 and the lower end of the pulling rod 31, and at the same time, to enable the bracket 10 to be suitably assembled to various types of elevators. Each mounting hole 101 may also be a strip-shaped hole extending in the vertical direction, so that the mounting position of the rope beam 1 can be further finely adjusted.

In other alternative embodiments, the slack monitoring device can also be fitted in elevators in which the rope ends tensioned by the rope head assemblies 3 with a hoisting ratio of 2:1 or 4:1 are directed upwards, suitably with the operating lever 30 above the rope head assembly 3. When the rope of this type of elevator becomes loose or breaks, the pull rod 31 of the rope head assembly 3 moves upward under the action of the extending tension of the rope head spring 32, and then the operation rod 30 is pushed to trigger the detection switch 20 to switch the on-off state.

It should be noted that, in this embodiment, a specific signal form that the detection switch 20 triggers the switching on/off state of the elevator control system to stop the car is not specifically limited, that is, in a normal working state, the detection switch 20 may be in a normally closed state, the operating rod 30 operates the detection switch 20 to switch to an off state, and when the elevator control system detects that the safety circuit where the detection switch 20 is located is off, the elevator control system may send a stopping signal to the elevator brake to stop the car; the detection switch 20 can also be in a normally open state, the operating rod 30 operates the detection switch 20 to be switched to a closed state, and when the elevator control system detects that the safety loop where the detection switch 20 is located is closed, the elevator control system can send a braking signal to the elevator brake to brake the car.

In addition, this embodiment still provides an elevator, and it includes car, rope, fag end 1, fag end subassembly 3 and foretell pine broken monitoring device. Through installing disconnected monitoring devices of pine additional according to above-mentioned structure for the control system of this elevator can learn through the signal judgement that disconnected detection device of pine sent that the elevator rope takes place to become flexible or fracture, and the elevator is stopped in time to the system, realizes the disconnected monitoring of pine of elevator rope, avoids taking place to become flexible or the incident that the fracture arouses because of the elevator rope takes place.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Numerous obvious variations, rearrangements and substitutions will now occur to those skilled in the art without departing from the scope of the invention. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. An elevator rope slack monitoring device, comprising:

a bracket (10) fixedly connected with the rope beam (1) of the fixed rope head component (3);

a detection switch (20) fixedly connected with the bracket (10) and in communication connection with an elevator control system; and

with support (10) articulated control rod (30), control rod (30) including be located its respectively with first end and the second end of the both sides of the articulated department of support (10), the first end of control rod (30) with pull rod (31) of fag end subassembly (3) set up relatively, the second end of control rod (30) with detect switch (20) set up relatively, so that control rod (30) can be by switch when pull rod (31) drive and produce and predetermine the displacement detect the on-off state of switch (20).

2. A loss monitoring device according to claim 1, wherein the rope end (2) tensioned by the rope head assembly (3) is directed downwards, the lever (30) is located below the rope head assembly (3), and the loss monitoring device further comprises a resilient assembly (40) connected to the lever (30) to support the lever (30).

3. A slack monitoring device according to claim 2, characterized in that the elastic component (40) comprises a bolt (401) fixedly connected with the bracket (10), the bolt (401) penetrates through the operating rod (30), the head of the bolt is positioned above the operating rod (30), the rod part of the bolt is sleeved with a supporting spring (402) below the operating rod (30), and the tail of the bolt is spirally provided with a double nut (403) to adjust the extension length of the supporting spring (402).

4. A loosening monitoring device according to claim 3, characterised in that the shank of the bolt (401) is not threaded.

5. A loose monitoring device according to claim 3, characterized in that the through hole of the lever (30) for plugging the bolt (401) is a strip-shaped hole.

6. A slack monitoring device according to claim 3, characterized in that the lever (30) is hinged to the bracket (10) by a hinge (50), the hinge (50) being arranged in close proximity to the bolt (401).

7. A breakage monitoring device according to claim 1, wherein the bracket (10) is provided with a plurality of mounting holes (101) for fixedly connecting with the rope beam (1), and the plurality of mounting holes (101) are arranged in a vertical direction.

8. A slack monitoring device according to claim 7, characterized in that the mounting hole (101) is a strip-shaped hole extending in a vertical direction.

9. A slack monitoring device according to claim 1, characterized in that the rope end (2) tensioned by the rope head assembly (3) is placed upwards and the lever (30) is located above the rope head assembly (3).

10. Elevator, characterized in that it comprises a car, ropes, a rope beam (1), a head assembly (3) and a slack monitoring device according to any one of claims 1-9.