CN114812900A - Hoisting rope torsion measuring device, system and adjusting method thereof - Google Patents

Abstract

The invention belongs to the technical field of elevator equipment, and provides a traction rope torque measurement device, a system and an adjustment method thereof. The invention measures the torque value by installing torsion sensors at both ends of each hoisting rope of the elevator, the torsion sensors at the same end are connected to the same data acquisition controller, and there are two data acquisition controllers at both ends of the hoisting rope. Each data acquisition controller transmits a signal to the central processing controller by means of electrical connection; after the central processing controller receives the signal, it displays the torque value at both ends of each hoisting rope. When running the elevator, the central processing controller records the change of the torsion force at both ends of each traction rope during the elevator operation. Adjust the torque of the traction rope and the adjustment strategy to avoid misadjustment or over-adjustment of the torque of the traction rope.

Description

A traction rope torque measurement device, system and adjustment method thereof

technical field

The invention belongs to the technical field of elevator equipment, and particularly relates to a traction rope torsion force measuring device, a system and an adjustment method thereof.

Background technique

During the manufacturing, packaging and installation of elevator hoisting ropes, there are situations where the hoisting ropes are twisted, so that the hoisting ropes generate torsion force. During the operation of the elevator, due to the relative rolling of the sheave and the hoisting rope, the hoisting rope with torsion force will continue to be tightened and loosened. When the tightening reaches the limit, the hoisting rope slips in the rope groove of the sheave, thereby releasing and transferring the tightening. The tightening, loosening and slipping of the traction rope at different positions not only affects the running stability and ride comfort of the elevator, but also increases the wear of the traction rope and sheave, and reduces the service life of the traction rope and sheave.

In the existing technology, the rope head of the hoisting rope can be easily rotated through the mechanical structure, thereby releasing the torsion force of the hoisting rope. However, this release is carried out based on experience, feeling, and observation with the naked eye. In the case of not accurately grasping the torque and changes of the traction rope at different positions of the elevator, there is a possibility of misadjustment or over-adjustment in this release, which will intensify damage to parts.

SUMMARY OF THE INVENTION

In order to overcome the above shortcomings of the prior art, the purpose of the present invention is to provide a traction rope torsion force measuring device, a system and an adjustment method thereof, so as to realize targeted torsion adjustment of the traction rope, and avoid the occurrence of the torsion force of the traction rope. Misadjustment or over-adjustment of torque.

The technical scheme adopted by the present invention to solve its technical problems is:

A traction rope torque measurement device, comprising a first support sleeve, a second support sleeve and a fastening assembly for contacting a torque source;

The first support sleeve is hollow to form a first accommodating space, and at least one side surface of the first support sleeve is provided with a first through hole;

The second support sleeve includes a first flat plate and a second flat plate oppositely arranged, a second accommodating space is formed between the first flat plate and the second flat plate, and a torsion sensor is installed in the second accommodating space; The first flat plate and the second flat plate are provided with corresponding second through holes;

The fastening assembly includes a bolt member and a nut member, and the bolt member is connected to the nut member after passing through the first support sleeve and the second support sleeve in sequence.

Preferably, the torque sensor is arranged in series on the bolt member.

Preferably, one end of the bolt member into which the nut member is screwed is provided with an installation hole transversely, and a split pin is inserted into the installation hole.

A traction rope torsion force measurement system, comprising a rope head fixing assembly, and the above-mentioned traction rope torsion force measurement device;

The rope head fixing assembly includes a mounting plate, the bolt member passing through the mounting plate, and a spring member strung on the bolt member, and the first support sleeve is in abutting contact with the spring member and is located at one end of the spring member away from the mounting plate;

The torque sensor is electrically connected with a data acquisition controller, and the data acquisition controller is electrically connected with a central processing controller.

Preferably, the mounting plate is arranged horizontally, and the bottom end of the bolt member disposed on the mounting plate is connected to the rope head of the hoisting rope;

The spring member is arranged above the mounting plate, the top end of the spring member is provided with a third flat plate, and a number of fixing nuts are arranged after the bolt member passes through the third flat plate. The height is greater than that of several of the fixing nuts.

Preferably, an observation hole is provided on the side surface of the first accommodating space.

A method for adjusting the torque of a traction rope, comprising the following steps:

S10. Build a traction rope torque measurement system as described above;

S20. Adjust the relative positions of the first support sleeve and the second support sleeve on the bolt member, so that the first support sleeve is pressed against the spring member so as to fully bear the torsion force from the hoisting rope, and make the The second support sleeve is to press the first support sleeve to perform inductive measurement of torsion force;

S30. Run the elevator to obtain the torque measurement value of the traction rope through the data acquisition controller, and record and display the torque value and the torque change of the traction rope through the central processing controller;

S40. The staff performs a torque adjustment operation corresponding to the hoisting rope according to the displayed information of the central processing controller.

Further, the hoisting rope torsion measurement system is provided corresponding to the hoisting rope on the car side and the hoisting rope on the counterweight side in a one-to-one correspondence.

Further, the displayed information of the central processing controller includes the instantaneous torque value, the direction of the torque, and the relationship diagram of the torque change.

Further, the installation directions of several of the torsion sensors are the same.

Compared with the prior art, the beneficial effects of the present invention include:

A traction rope torsion measurement device, system and adjustment method provided in this solution can measure the end torsion of each traction rope during the whole running process of the elevator. The torque parameters and changes at the end of the hoisting rope can be accurately judged whether the corresponding hoisting rope needs to be adjusted for torque and the adjustment strategy, so that the torque adjustment of the hoisting rope can be more timely and effective, and can effectively avoid Misadjustment or over-adjustment of the torque of the traction rope occurs to ensure the stable operation of the elevator and the service life of related components.

Description of drawings

In order to explain the technical solutions of the embodiments of the present invention more clearly, the following briefly introduces the accompanying drawings used in the description of the embodiments. Obviously, the drawings in the following description are some embodiments of the present invention, which are of great significance to the art For those of ordinary skill, other drawings can also be obtained from these drawings without any creative effort.

FIG. 1 is a schematic structural diagram of a traction rope torsion force measuring device in the present invention.

FIG. 2 is a schematic structural diagram of the traction rope torsion force measurement system in the present invention.

Fig. 3 is the instantaneous torque data recording table in the torque measurement process of the present invention.

Fig. 4 is a diagram showing the relationship between the lifting height H and the torque F when the rope head on the side of the car has no torsion or very little torsion according to the present invention.

FIG. 5 is a diagram showing the relationship between the lifting height H and the torque F when the rope head on the counterweight side has no torsion or when the torsion is very small.

Fig. 6 is a diagram showing the relationship between the lift height H and the torsion force F when the rope head on the car side of the present invention has torsion force but does not slip.

FIG. 7 is a diagram showing the relationship between the lifting height H and the torsion force F when the rope head on the counterweight side has torsion force but does not slip.

Fig. 8 is a diagram showing the relationship between the lifting height H and the torque F when the rope head on the car side of the present invention slips.

FIG. 9 is a relationship diagram of the lifting height H-torque force F when the rope head on the counterweight side of the present invention slips.

in:

1-The first support sleeve, 11-Observation hole;

2- the second support sleeve, 21- the first plate, 22- the second plate;

3- Fastening components, 31- Bolt parts, 311- Cotter pin, 32- Nut parts;

4-torque sensor, 41-data acquisition controller, 42-central processing controller;

5-hoisting rope, 51-rope head fixing assembly, 511-installation plate, 512-spring piece, 513-third flat plate, 514-fixing nut.

Detailed ways

In order to more clearly understand the above objects, features and advantages of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features of the embodiments may be combined with each other unless there is conflict. In the following description, many specific details are set forth in order to facilitate a full understanding of the present invention, and the described embodiments are only some, but not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terms used herein in the description of the present invention are for the purpose of describing specific embodiments only, and are not intended to limit the present invention.

Example 1

As shown in FIGS. 1-9 , this embodiment provides a traction rope torsion force measurement device, which mainly includes a first support sleeve 1 , a second support sleeve 2 and a fastening assembly 3 . In the use state, the bottom end of the first support sleeve 1 is used to contact the torsion source to transmit the state of torque generation; the bottom end of the second support sleeve 2 is in contact with the top end of the first support sleeve 1 , wherein a torsion sensor 4 is arranged on the second support sleeve 2 to detect torque data; the first support sleeve 1 and the second support sleeve 2 are installed and fixed by the fastening assembly 3 .

Specifically, in this embodiment, the first support sleeve 1 is hollow to form a first accommodating space, and at least one side surface of the first support sleeve 1 is provided with a first through hole.

As a preferred solution, the cross-section of the first support sleeve 1 in this embodiment is U-shaped. For example, it can be made of U-shaped channel steel, and when in use, the U-shaped opening is set downward. At this time, the first through hole is arranged on the U-shaped bottom wall, so that it can be easily installed and used with the rope head fixing assembly 51 of the hoisting rope 5. The specific structural form of the rope head fixing assembly 51 can be Refer to the prior art, which is not repeated here. In this embodiment, the shape of the first support sleeve 1 is preferably set to match the shape of the torsion sensor 4 .

In addition, the second support sleeve 2 includes a first flat plate 21 and a second flat plate 22 disposed opposite to each other, and a second accommodating space is formed between the first flat plate 21 and the second flat plate 22, and the torsion force The sensor 4 is arranged in the second accommodating space.

The fastening assembly 3 includes a bolt member 31 and a nut member 32 . The bolt member 31 is connected to the nut member 32 after passing through the first support sleeve 1 and the second support sleeve 2 in sequence.

Further, in this embodiment, the first flat plate 21 and the second flat plate 22 are provided with corresponding second through holes, and the corresponding second through holes and the first through holes are evenly spaced. It is arranged coaxially, so as to facilitate the penetration of the bolt member 31 . As a preferred solution, in this embodiment, the torque sensor 4 is serially arranged on the bolt member 31 and coaxially arranged with the axis of the bolt member 31 to improve the detection accuracy of the torque data.

Further, an installation hole is provided transversely at one end of the bolt member 31 into which the nut member 32 is screwed, and a split pin 311 is inserted into the installation hole. The cotter pin 311 provided can effectively prevent the first support sleeve 1, the second support sleeve 2 and the nut member 32 from accidentally falling out of the bolt member 31 under the action of torsion force, which can make the whole traction The rope torque measuring device is safer and more reliable.

In order to facilitate the understanding of this solution, as shown in FIG. 2 , this embodiment provides a traction rope torsion force measurement system, including the rope head fixing assembly 51 and the above-mentioned traction rope torsion force measurement device .

Specifically, the rope head fixing assembly 51 mainly includes a mounting plate 511 , the bolt member 31 passing through the mounting plate 511 , and the spring member 512 strung on the bolt member 31 . Here, the The specific installation and connection methods of the mounting plate 511 , the bolt member 31 and the spring member 512 can be found in the prior art, which will not be repeated here. The bottom end of the first support sleeve 1 is in contact with the top end of the spring member 512 , and is located at the end of the spring member 512 away from the mounting plate 511 , so that the torsion force from the end of the hoisting rope 5 can be effectively supported. , and transmitted to the second support sleeve 2 .

The torque sensor 4 is electrically connected with a data acquisition controller 41 , and the data acquisition controller 41 is electrically connected with a central processing controller 42 . In this embodiment, as a preferred solution, the electrical connection may be a wired signal connection using wires or the like, or a wireless signal connection such as WIFI and Bluetooth. For the specific implementation method, please refer to the current There are technologies, which will not be repeated here.

As a preferred solution, the mounting plate 511 is arranged horizontally, and the bottom end of the bolt member 31 arranged on the mounting plate 511 is connected to the rope head of the hoisting rope 5; The installation plate 511 is provided at the rope head of the car side and the rope head of the counterweight side. On the installation plate 511, there are a number of through holes for the bolts 31 to pass through. Corresponding bolts 31 are provided on each of the hoisting ropes 5 , so as to facilitate the control and adjustment of a single hoisting rope 5 .

The spring member 512 is disposed above the mounting plate 511; as a preferred solution, a third flat plate 513 is disposed at the top of the spring member 512, and the bolt member 31 passes through the third plate 513. Several fixing nuts 514 are arranged behind the flat plate 513 . The provided third flat plate 513 facilitates the compression and installation of the spring member 512 through a plurality of the fixing nuts 514 during normal use; secondly, the first support can be effectively increased The contact area between the bottom end of the sleeve 1 and the spring member 512 can effectively improve the transmission accuracy of the torque.

In addition, in this embodiment, the height of the first accommodating space is set to be greater than the stacking height of a plurality of the fixing nuts 514 , and an observation hole 11 is provided on the side surface of the first accommodating space. This makes it possible to directly install the traction rope torque measuring device proposed in this solution on the rope head fixing assembly 51 during use, and at this time, the bolt member 31 can be used for both purposes without excessive disassembly and assembly operations. By adjusting the nut member 32, the second support sleeve 2, the first support sleeve 1 and the spring member 512 are continuously pressed down, so that the fixing nut 514 is contacted and separated from the third flat plate 513, However, the first support sleeve 1 is completely in contact with the third flat plate 513, so that the torsion force of the traction rope 5 can be fully supported, and a more accurate data measurement operation can be performed. At this time, it is possible to confirm the contact and separation between the fixing nut 514 and the third flat plate 513 through the provided observation hole 11 .

In order to facilitate the further understanding of this solution, this embodiment also provides a method for adjusting the torque of a traction rope, which mainly includes the following steps:

S10. Construct a traction rope torsion force measurement system as described above; wherein, the traction rope torsion force measurement system corresponding to the traction rope 5 on the car side and the traction rope 5 on the counterweight side is provided in a one-to-one correspondence system. So that the rope head fixing assembly 51 at the rope head of the car side and the rope head of the counterweight side is provided with the above-mentioned traction rope torsion force measuring device for each of the traction ropes 5, so as to realize the measurement of each traction rope. The torque of the hoisting rope 5 is measured. In this embodiment, it is preferable to set the arrangement directions of several of the torsion sensors 4 to be the same, so as to define the direction in which the torsion force occurs.

S20. Adjust the relative positions of the first support sleeve 1 and the second support sleeve 2 on the bolt member 31, so that the first support sleeve 1 presses the spring member 512 so as to fully bear the load from the traction rope 5 torsional force, and make the second support sleeve 2 press the first support sleeve 1 to measure the torsion force; at this time, set the rope head on the car side and the rope head on the counterweight side respectively The data acquisition controller 41 is used to individually measure the torsion force of the rope ends at both ends of the hoisting rope 5 .

S30. run the elevator to obtain the torque measurement value of the hoisting rope 5 through the data acquisition controller 41, and record and display the torque value and the torsion change of the hoisting rope 5 through the central processing controller 42; Further, the displayed information of the central processing controller 42 includes the instantaneous torque value, the direction of the torque and the relationship diagram of the torque change.

S40. The staff performs a torque adjustment operation corresponding to the hoisting rope 5 according to the displayed information of the central processing controller 42.

When the central processing controller 42 receives the signals transmitted from the data acquisition controller 41 at the rope head of the car side and the rope head of the counterweight side, the torque value at both ends of each hoisting rope 5 is displayed on the screen, At this time, the positive or negative value of the torsion force reflects the different directions of the torsion force of the hoisting rope 5 .

As an example of measurement and adjustment, run the elevator in the order from the bottom layer→top layer→bottom layer, the central processing controller 42 simultaneously records the torsion force of each/each group at the rope ends of the elevator hoisting rope 5 The torque and changes of the sensor 4, and the corresponding instantaneous torque data are recorded, as shown in Figure 3.

At this time, a relationship diagram of the lift height H-torque force F corresponding to each of the torque sensors 4 is displayed respectively.

Figures 4 and 5 are the relationship diagrams of the lift height H-torsion F of the rope head on the car side and the rope head on the counterweight side, respectively, indicating that the corresponding hoisting rope 5 has no or very little torsion. No torque adjustment is required in this case.

Figures 6 and 7 are the relationship diagrams of the lift height H-torque F of the rope head on the car side and the rope head on the counterweight side, respectively, indicating that the corresponding hoisting rope 5 moves with the elevator, and its torsion changes cyclically between tightening and loosening , but the sheave and the hoisting rope 5 do not slip. In this case, you need to consider adjusting the torque.

Figures 8 and 9 are the relationship diagrams of the lift height H-torque force F of the rope head on the car side and the rope head on the counterweight side, respectively, indicating that the corresponding hoisting rope 5 moves with the elevator, and its torsion force is a periodic change of tightening and loosening , but the sheave and the hoisting rope 5 slip. In this case, the torque needs to be adjusted as soon as possible.

By adopting the above method, the measurement of the torsion force of the rope ends of each hoisting rope 5 during the whole running process of the elevator is realized, and the torsion force and the change of the rope ends of each hoisting rope 5 during the whole running process of the elevator are analyzed. , so as to accurately determine whether each traction rope 5 needs to adjust the traction rope torque and formulate an adjustment strategy, effectively avoid misadjustment or over-adjustment of the traction rope torque, and ensure the stable operation of the elevator and the service life of related components.

The above are only preferred embodiments of the present invention, and do not limit the present invention in any form. Therefore, any modification, Equivalent changes and modifications still fall within the scope of the technical solutions of the present invention.

Claims (10)

1. A traction rope torque measuring device, characterized in that it comprises a first support sleeve, a second support sleeve and a fastening assembly for contacting a torque source; The first support sleeve is hollow to form a first accommodating space, and at least one side surface of the first support sleeve is provided with a first through hole; The second support sleeve includes a first flat plate and a second flat plate oppositely arranged, a second accommodating space is formed between the first flat plate and the second flat plate, and a torsion sensor is installed in the second accommodating space; The first flat plate and the second flat plate are provided with corresponding second through holes; The fastening assembly includes a bolt member and a nut member, and the bolt member is connected to the nut member after passing through the first support sleeve and the second support sleeve in sequence. 2 . The traction rope torsion force measuring device according to claim 1 , wherein the torsion force sensor is arranged in series on the bolt member. 3 . 3 . The traction rope torque measuring device according to claim 1 or 2 , wherein an installation hole is provided across the end of the bolt member into which the nut member is screwed, and the installation hole is inserted into the installation hole. 4 . There are cotter pins. 4. A traction rope torsion force measurement system, comprising a rope head fixing assembly, characterized in that it further comprises a traction rope torsion force measurement device according to any one of the preceding claims 1-3; The rope head fixing assembly includes a mounting plate, the bolt member passing through the mounting plate, and a spring member strung on the bolt member, and the first support sleeve is in abutting contact with the spring member and is located at one end of the spring member away from the mounting plate; The torque sensor is electrically connected with a data acquisition controller, and the data acquisition controller is electrically connected with a central processing controller. 5 . The traction rope torque measurement system according to claim 4 , wherein the mounting plate is arranged horizontally, and the bottom ends of the bolts arranged on the mounting plate are connected to the traction rope. 6 . rope head; The spring member is arranged above the mounting plate, the top end of the spring member is provided with a third flat plate, and a number of fixing nuts are arranged after the bolt member passes through the third flat plate. The height is greater than that of several of the fixing nuts. 6 . The traction rope torsion force measurement system according to claim 5 , wherein an observation hole is provided on the side surface of the first accommodating space. 7 . 7. A method for adjusting the torque of a traction rope, comprising the steps of: S10. construct a kind of traction rope torsion force measurement system according to any one of the above claims 4-6; S20. Adjust the relative positions of the first support sleeve and the second support sleeve on the bolt member, so that the first support sleeve is pressed against the spring member so as to fully bear the torsion force from the hoisting rope, and make the The second support sleeve is to press the first support sleeve to perform inductive measurement of torsion force; S30. Run the elevator to obtain the torque measurement value of the traction rope through the data acquisition controller, and record and display the torque value and the torque change of the traction rope through the central processing controller; S40. The staff performs a torque adjustment operation corresponding to the hoisting rope according to the displayed information of the central processing controller. 8 . The method for adjusting the torque of a hoisting rope according to claim 7 , wherein the hoisting ropes are provided in a one-to-one correspondence with the hoisting rope on the car side and the hoisting rope on the counterweight side. 9 . Torque measurement system. 9 . The method for adjusting the torque of a traction rope according to claim 7 or 8 , wherein the display information of the central processing controller includes an instantaneous torque value, a direction of the torque and a relationship diagram of the torque change. 10 . 10 . The method for adjusting the torsion force of a hoisting rope according to claim 9 , wherein the installation directions of a plurality of the torsion force sensors are the same. 11 .

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