CN213085250U

CN213085250U - Rope loosening protection device capable of accurately detecting tightness of lifting rope

Info

Publication number: CN213085250U
Application number: CN202021838394.5U
Authority: CN
Inventors: 张�杰; 徐锋; 徐绍圣
Original assignee: Jiangsu Jiamei Performing Arts Equipment Co ltd
Current assignee: Jiangsu Jiamei Performing Arts Equipment Co ltd
Priority date: 2020-08-28
Filing date: 2020-08-28
Publication date: 2021-04-30
Anticipated expiration: 2030-08-28

Abstract

The utility model discloses a but slack rope protection device of accurate detection lifting rope tension, including support, hydraulic buffer and signal processor, the lifting machine is installed to the support rear side, and the support front end left and right sides has seted up the spout, the inside sliding connection of spout has the slider, and rotates between two sliders and be connected with the guiding axle, be fixed with the lifting rope on the lifting machine, and the lifting rope walks around the guiding axle upside, hydraulic buffer fixed mounting is in the support front end left and right sides. This but tight rope-loosening protection device of accurate detection lifting rope is provided with slider, proximity switch and weighing sensor, and proximity switch all installs near the lifting machine with weighing sensor, has reduced signal transmission's the degree of difficulty, and proximity sensor detects with the weighing sensor cooperation simultaneously, has improved the detection speed and the detection accuracy degree to the rope-loosening phenomenon, has reduced the detection error probability that single detection means caused, has improved this rope-loosening protection device's reliability.

Description

Rope loosening protection device capable of accurately detecting tightness of lifting rope

Technical Field

The utility model relates to a slack rope protection device technical field specifically is a can accurate detection lifting rope tension's slack rope protection device.

Background

The rope loosening phenomenon occurs when the falling speed of the workpiece is smaller than the falling speed of the lifting rope, once the workpiece is accelerated again, the pulling force of gravitational potential energy conversion is too large, the lifting rope is easy to break, safety accidents are caused, therefore, the rope loosening protection device needs to be used, and through mass retrieval, the existing rope loosening protection device is found to be typically as the following patent numbers: CN201620170888.8, a rope-loosening protection device for a steel wire rope of an inclined rope-discharging hoister, which comprises a guide wheel, a tensioning rope, a touch block and a travel switch connected with a PLC of the hoister.

To sum up, the detection sensor of the existing rope loosening protection device is usually installed at the joint of a lifting rope and a workpiece, when the lifting machine operates, the detection sensor is far away from the lifting machine, the monitoring signal is difficult to be rapidly and accurately sent to the lifting machine, certain limitation is achieved when the lifting machine operates, the existing rope loosening protection device is not provided with a buffer device, certain delay is inevitably generated between the rope loosening phenomenon and the shutdown of the lifting machine, the lifting rope is made to be loosened to a certain extent, the reliability of the rope loosening protection device is low, certain potential safety hazards are achieved when the rope loosening protection device is used, and aiming at the problems, the existing equipment needs to be improved.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a but rope slack protection device of accurate detection lifting rope tension degree, install at lifting rope and work piece junction usually with the detection sensor who solves the current rope slack protection device who proposes in the above-mentioned background art, when the lifting machine moves, it is far away apart from the lifting machine distance to detect the sensor, be difficult to quick accurate send monitor signal to the lifting machine, use and get up and have certain limitation, and current rope slack protection device is not provided with buffer, lead to this rope slack protection device's reliability low, use and get up the problem that has certain potential safety hazard.

In order to achieve the above object, the utility model provides a following technical scheme: a slack rope protection device capable of accurately detecting the tightness of a lifting rope comprises a bracket, a hydraulic buffer and a signal processor,

the lifting device comprises a support, a lifting machine is mounted on the rear side of the support, sliding grooves are formed in the left side and the right side of the front end of the support, sliding blocks are connected inside the sliding grooves in a sliding mode, a guide shaft is connected between the two sliding blocks in a rotating mode, a lifting rope is fixed on the lifting machine, and the lifting rope bypasses the upper side of the guide shaft;

the hydraulic buffers are fixedly arranged on the left side and the right side of the front end of the bracket, and the top of each hydraulic buffer is fixedly connected with the bottom of the corresponding sliding block;

the signal processor is installed in the bottom of the support, the weighing sensor attached to the bottom of the sliding block is installed at the bottom of the sliding groove, and the proximity switch is installed on the rear side of the sliding groove.

Preferably, the lowest end of the sliding block is attached to the lowest end of the sliding groove.

Preferably, the uppermost end of the guide shaft is located at an upper side of the uppermost end of the hoist.

Preferably, the hydraulic buffers are two, and the two hydraulic buffers are symmetrically arranged by taking the center line of the bracket as the center.

Preferably, the signal processor is electrically connected with the weighing sensor, the proximity switch and the elevator.

Preferably, the lowest end of the proximity switch and the highest end of the sliding block are positioned on the same horizontal plane.

Compared with the prior art, the beneficial effects of the utility model are that: the rope-loosening protection device capable of accurately detecting the tightness of the lifting rope,

(1) the hydraulic buffer is arranged, once the rope loosening phenomenon occurs, the hydraulic buffer pushes the sliding block to ascend along the sliding groove, the sliding block drives the guide shaft to ascend, meanwhile, the guide shaft pulls the lifting rope to ascend until the pressure of the lifting rope on the guide shaft is balanced with the thrust of the hydraulic buffer on the sliding block, the sliding block is pushed by the lifting rope to move downwards along the sliding groove after the speed of a workpiece is restored, meanwhile, the hydraulic buffer absorbs kinetic energy, the situation that the lifting rope is broken due to overlarge instantaneous pressure is avoided, and the hydraulic buffer is safer to use;

(2) be provided with slider, proximity switch and weighing sensor, proximity switch all installs near the lifting machine with weighing sensor, has reduced signal transmission's the degree of difficulty, and proximity sensor detects with the weighing sensor cooperation simultaneously, has improved the detection rate and the detection accuracy degree to the rope slacking phenomenon, has reduced the detection error probability that single detection means caused, has improved this rope slacking protection device's reliability.

Drawings

FIG. 1 is a schematic view of the left side view of the cross-section of the present invention;

FIG. 2 is a schematic view of the cross-sectional structure of the present invention;

fig. 3 is the schematic view of the work flow structure of the present invention.

In the figure: 1. the device comprises a support, 2, a lifting machine, 3, a sliding chute, 4, a sliding block, 5, a guide shaft, 6, a lifting rope, 7, a hydraulic buffer, 8, a signal processor, 9, a weighing sensor, 10 and a proximity switch.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a slack rope protection device capable of accurately detecting the tightness of a lifting rope is disclosed, as shown in figures 1 and 2, a lifting machine 2 is arranged at the rear side of a support 1, sliding grooves 3 are formed in the left side and the right side of the front end of the support 1, sliding blocks 4 are connected inside the sliding grooves 3 in a sliding mode, a guide shaft 5 is connected between the two sliding blocks 4 in a rotating mode, the lowest ends of the sliding blocks 4 are attached to the lowest end of the sliding grooves 3, a weighing sensor 9 is extruded by the sliding blocks 4, the weighing sensor 9 can monitor the weight and pressure of the sliding blocks 4 conveniently, the highest ends of the guide shafts 5 are located on the upper side of the highest end of the lifting machine 2, when a hydraulic buffer 7 pushes the guide shafts 5 to ascend through the sliding blocks 4, the guide shafts 5 pull the lifting rope 6 to ascend to tighten the lifting rope 6, the lifting machine 2 is fixedly provided with the lifting rope 6, the lifting rope 6 bypasses the upper side of the guide shafts 5, the hydraulic buffer 7 is fixedly arranged on, two hydraulic buffers 7 are arranged, and the two hydraulic buffers 7 are symmetrically arranged by taking the central line of the bracket 1 as the center, so that the guide shaft 5 can be pushed to ascend uniformly through the two sliding blocks 4.

As shown in fig. 2 and 3, signal processor 8 installs in support 1 bottom, signal processor 8 and weighing sensor 9, proximity switch 10 and lifting machine 2's connected mode is electric connection, be convenient for signal processor 8 according to proximity switch 10 and weighing sensor 9's monitoring information control lifting machine 2's running state, the weighing sensor 9 of laminating slider 4 bottom is installed to 3 bottoms of spout, and proximity switch 10 is installed to 3 rear sides of spout, proximity switch 10 is located same horizontal plane with slider 4 top to the bottom, be convenient for proximity switch 10 short-term test the displacement that slider 4 takes place.

The working principle is as follows: when the slack rope protection device capable of accurately detecting the tightness of the lifting rope is used, the model of a signal processor 8 is TMS320F28016PZA, the model of a proximity switch 10 is E2A-M12LS04-M1, the model of a weighing sensor 9 is PW10AC3MR, one end of the lifting rope 6 bypasses a guide shaft 5 and is fixedly connected with a workpiece, a lifting machine 2 comprises a driving motor, a wire coil and a band-type brake, an external power supply is connected, the driving motor is started, the driving motor drives the wire coil to rotate, the workpiece is placed on the lifting rope 6 on the wire coil, the weighing sensor 9 monitors the pressure of the lifting rope 6 on the guide shaft 5 at the moment, the proximity switch 10 monitors the position information of the sliding block 4, once the slack rope phenomenon occurs, the hydraulic buffer 7 pushes the sliding block 4 to ascend, the sliding block 4 pushes the guide shaft 5 until the thrust of the hydraulic buffer 7 on the sliding block 4 keeps balance with the pressure of the lifting rope 6 on the guide shaft 5, and meanwhile, the weighing sensor 9 and the proximity switch 10 send, the signal processor 8 controls the driving motor to stop, a rotating shaft on the driving motor is locked by the band-type brake, the distance between the weighing sensor 9 and the proximity switch 10 and the elevator 2 is short, monitoring data can be sent quickly and accurately, meanwhile, the weighing sensor 9 and the proximity switch 10 are matched for monitoring, the reliability of the rope loosening protection device is improved, when a workpiece suddenly recovers the falling speed, the workpiece pulls the guide shaft 5 to move downwards through the lifting rope 6, the sliding blocks 4 on two sides of the guide shaft 5 press the hydraulic buffer 7, the hydraulic buffer 7 absorbs kinetic energy, the situation that the lifting rope 6 is broken due to overlarge instantaneous pressure is avoided, the use is safer, and all work is finished.

The terms "central," "longitudinal," "lateral," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for ease of description, but are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the scope of the invention.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a but slack rope protection device of accurate detection lifting rope tension, includes support (1), hydraulic buffer (7) and signal processor (8), its characterized in that:

the lifting device comprises a support (1), wherein a lifting machine (2) is installed on the rear side of the support (1), sliding grooves (3) are formed in the left side and the right side of the front end of the support (1), sliding blocks (4) are connected inside the sliding grooves (3) in a sliding mode, a guide shaft (5) is connected between the two sliding blocks (4) in a rotating mode, a lifting rope (6) is fixed on the lifting machine (2), and the lifting rope (6) bypasses the upper side of the guide shaft (5);

the hydraulic buffers (7) are fixedly arranged on the left side and the right side of the front end of the support (1), and the top of each hydraulic buffer (7) is fixedly connected with the bottom of the corresponding sliding block (4);

signal processor (8), signal processor (8) are installed in support (1) bottom, weighing sensor (9) of laminating slider (4) bottom are installed to spout (3) bottom, and proximity switch (10) are installed to spout (3) rear side.

2. The slack rope protection device of claim 1, which can accurately detect the tightness of a lifting rope, is characterized in that: the lowest end of the sliding block (4) is attached to the lowest end of the sliding groove (3).

3. The slack rope protection device of claim 1, which can accurately detect the tightness of a lifting rope, is characterized in that: the uppermost end of the guide shaft (5) is positioned on the upper side of the uppermost end of the hoisting machine (2).

4. The slack rope protection device of claim 1, which can accurately detect the tightness of a lifting rope, is characterized in that: the hydraulic buffers (7) are arranged in two numbers, and the two hydraulic buffers (7) are symmetrically arranged by taking the central line of the bracket (1) as the center.

5. The slack rope protection device of claim 1, which can accurately detect the tightness of a lifting rope, is characterized in that: the signal processor (8) is electrically connected with the weighing sensor (9), the proximity switch (10) and the elevator (2).

6. The slack rope protection device of claim 1, which can accurately detect the tightness of a lifting rope, is characterized in that: the lowest end of the proximity switch (10) and the uppermost end of the sliding block (4) are positioned on the same horizontal plane.