Movable pulley device integrating loose rope tensioning and broken rope detection

Abstract

A movable pulley device integrating loose rope tensioning and broken rope detection comprises a movable pulley support which comprises a movable pulley seat plate, two movable pulley lug plates vertically arranged on the two sides of the bottom face of the movable pulley seat plate, and a lead screw lug plate with a through hole formed in the middle of the side edge of the movable pulley seat plate in a protruding mode; the guide shaft is vertically arranged in the center of the upper end face of the movable pulley seat plate; correspondingly, a guide sleeve is arranged in the center of an upper cross beam of the cargo carrying table, and the guide shaft is inserted into the guide sleeve; the movable pulley is arranged between the two movable pulley lug plates and is connected into the mounting through holes of the two movable pulley lug plates through a movable pulley shaft, a deep groove ball bearing and a spacer bush pivot; the two fixing nuts are symmetrically fixed on two sides of the bottom surface of the upper cross beam of the cargo carrying platform; the two adjusting bolts are locked and attached to the two fixing nuts respectively, and the ends of the adjusting bolts abut against the top face of the movable pulley support; the two adjusting nuts are respectively locked on the two adjusting bolts; the broken rope detection rod is arranged on the lead screw lug plate; the microswitch is arranged on the side face of the upper cross beam of the cargo carrying table through an installation support and corresponds to the upper end of the broken rope detection rod.

Description

Technical Field

[0001] The utility model relates to the field of automated three-dimensional warehousing, and in particular to a movable pulley device with integrated loose rope tensioning and broken rope detection. Background Art

[0002] Wire rope movable pulley device is widely used in logistics warehousing equipment and lifting equipment. Its function is to save effort. The wire rope passes through the movable pulley, fixed pulley, motor and drum to achieve the lifting of goods.

[0003] Most stackers on the market have a movable pulley installed on the cargo platform, while the device for tensioning the wire rope and the device for detecting broken rope (loose rope) are installed on the upper beam of the stacker. This installation method makes the two devices take up a large space, making subsequent maintenance and inspection inconvenient, and safety cannot be guaranteed. Summary of the Invention

[0004] The purpose of the utility model is to design a movable pulley device with integrated loose rope tensioning and broken rope detection, which can simultaneously and conveniently adjust the tension state of the wire rope and can achieve broken rope (loose rope) detection. It is not only convenient to adjust the tightness of the wire rope, but also can detect the safety state of the wire rope through the limit switch. If the wire rope breaks (loose rope), the micro switch can immediately feedback the signal. It has the characteristics of easy installation, safety and reliability, and low space utilization.

[0005] In order to achieve the above-mentioned purpose, the technical solution of the present utility model is:

[0006] A movable pulley device integrating loose rope tensioning and broken rope detection, comprising:

[0007] Movable pulley support, including:

[0008] The movable pulley seat plate has two movable pulley ear plates vertically arranged on both sides of the bottom surface, and the lower part of the movable pulley ear plates is provided with mounting holes; the two ends of the movable pulley seat plate are provided with grooves for the steel wire rope to pass through, and the middle part of the side of the movable pulley seat plate is provided with a screw rod ear plate with a through hole;

[0009] A guide shaft is vertically arranged in the center of the upper end surface of the movable pulley seat plate; correspondingly, a guide sleeve is provided in the center of the upper crossbeam of the cargo platform, and the guide shaft is inserted into the guide sleeve;

[0010] The movable pulley is arranged between the two movable pulley lugs of the movable pulley support, is pivotally connected to the mounting holes of the two movable pulley lugs through the movable pulley shaft, deep groove ball bearings, and spacer sleeves, and is axially fixed by the movable pulley end baffle;

[0011] Two fixing nuts are symmetrically fixed on both sides of the bottom surface of the crossbeam on the cargo platform;

[0012] Two adjusting bolts are respectively locked to two fixing nuts, with their ends resting on the top surface of the movable pulley support;

[0013] Two adjusting nuts are respectively locked on the two adjusting bolts;

[0014] A rope-broken detection rod is provided on the screw lug plate of the movable pulley seat plate;

[0015] The micro switch is arranged on the side of the crossbeam on the cargo platform through a mounting bracket and corresponds to the upper end of the broken rope detection rod.

[0016] Preferably, the fixing nut is an M30 high-strength large hexagonal nut for steel structure, the adjusting bolt is an M30 coarse-thread full-thread hexagonal head bolt, and the adjusting nut is an M30 coarse-thread hexagonal nut.

[0017] In the device described in the utility model:

[0018] The cargo platform is equipped with two micro switch brackets and micro switches, and the broken rope detection rod is installed on the screw ear plate of the movable pulley group to form an integrated structure.

[0019] By turning the adjusting bolt, the movable pulley can be adjusted to move downward, thereby tightening the wire rope to achieve tensioning of the wire rope.

[0020] The rope break detection rod is locked to the movable pulley block and is an integral structure with the movable pulley. When the wire rope breaks (loosens), the movable pulley block falls freely, and the rope break detection rod also falls. At this time, the micro switch is not under pressure from the rope break detection rod, so it sends a feedback signal, causing the stacker to alarm.

[0021] The advantages of the present invention are:

[0022] Compared with the existing technology, the utility model can simultaneously realize convenient adjustment of the tension state of the wire rope, and can achieve rope breakage (loose rope) detection, integrating loose rope tensioning and rope breakage detection.

[0023] This utility model not only facilitates adjusting the tension of the wire rope, but also enables monitoring of the safety status of the wire rope via a microswitch. By integrating rope break detection with the movable pulley, the signal output function responds quickly, instantly detecting and issuing an alarm signal when a rope break occurs. This mechanism is more reliable and significantly improves equipment safety. This utility model features easy installation, safety, reliability, and a compact footprint. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A perspective view of an embodiment of the present utility model;

[0025] Figure 2 It is a front view of an embodiment of the utility model;

[0026] Figure 3 This is a rear view of an embodiment of the present utility model;

[0027] Figure 4 This is a front view of the movable pulley support in the embodiment of the present utility model;

[0028] Figure 5 for Figure 4 AA cross-sectional view;

[0029] Figure 6 This is a three-dimensional diagram of the assembly of the movable pulley support and the movable pulley in the embodiment of the present utility model;

[0030] Figure 7 It is a three-dimensional diagram of the movable pulley support in the embodiment of the present utility model. DETAILED DESCRIPTION

[0031] See also Figures 1 to 7 The movable pulley device with integrated loose rope tensioning and broken rope detection of the present invention is installed on the cargo platform 100 of the stacker, with one set on each side, and includes:

[0032] The movable pulley support 1 includes:

[0033] The movable pulley seat plate 11 has two movable pulley lugs 12 and 12' vertically arranged on both sides of its bottom surface. The movable pulley lugs 12 and 12' have mounting holes 121 and 121' at their lower parts. Grooves 111 are provided at both ends of the movable pulley seat plate 11 for the steel wire rope 200 to pass through. A screw lug 13 with a through hole is provided in the middle of the side of the movable pulley seat plate 11.

[0034] The guide shaft 14 is vertically arranged in the center of the upper end surface of the movable pulley seat plate 11; correspondingly, a guide sleeve 102 is provided in the center of the upper crossbeam 101 of the cargo platform 100, and the guide shaft 14 is inserted into the guide sleeve 102;

[0035] The movable pulley 2 is arranged between the two movable pulley lugs 12 and 12' of the movable pulley support 1, and is pivotally connected to the mounting holes 121 and 121' of the two movable pulley lugs 12 and 12' through the movable pulley shaft 21, deep groove ball bearings 22, and spacers 23 and 23', and is axially fixed by the movable pulley end baffle 24;

[0036] Two fixing nuts 3 and 3' are symmetrically fixed on both sides of the bottom surface of the upper crossbeam 101 of the cargo platform 100;

[0037] The two adjusting bolts 4 and 4' are respectively locked to the two fixing nuts 3 and 3', and their ends are against the top surface of the movable pulley support; the tightness of the wire rope can be adjusted by turning the adjusting bolts;

[0038] Two adjusting nuts 5, 5' are respectively locked on the two adjusting bolts 4, 4';

[0039] The rope break detection rod 6 is provided on the screw ear plate 13 of the movable pulley seat plate 11;

[0040] The micro switch 7 is arranged on the side of the cross beam 101 on the cargo platform 100 through the mounting bracket 71, and corresponds to the upper end of the broken rope detection rod 6; the broken rope detection rod can be adjusted by its own screw rod, and can be adjusted to the required distance from the micro switch in the working state. In this way, when the wire rope breaks (loose rope), the micro switch can immediately feedback the signal.

[0041] Preferably, the fixing nut is an M30 high-strength large hexagonal nut for steel structure, the adjusting bolt is an M30 coarse-thread full-thread hexagonal head bolt, and the adjusting nut is an M30 coarse-thread hexagonal nut.

Claims

1. A movable pulley device with integrated loose rope tensioning and broken rope detection, characterized in that: include: The movable pulley support comprises: The movable pulley seat plate has two movable pulley ear plates vertically arranged on both sides of the bottom surface, and the lower part of the movable pulley ear plates is provided with mounting through holes; grooves for the steel wire rope to pass through are arranged at both ends of the movable pulley seat plate, and a screw rod ear plate with a through hole is convexly arranged in the middle of the side of the movable pulley seat plate; The guide shaft is vertically arranged in the center of the upper end surface of the movable pulley seat plate; correspondingly, a guide sleeve is arranged in the center of the upper crossbeam of the cargo platform, and the guide shaft is inserted into the guide sleeve; the movable pulley is arranged between the two movable pulley ear plates of the movable pulley support, and is pivotally connected to the mounting through holes of the two movable pulley ear plates through the movable pulley shaft, deep groove ball bearing, and spacer sleeve, and is axially fixed by the movable pulley end baffle; Two fixing nuts are symmetrically fixed on both sides of the bottom surface of the crossbeam on the cargo platform; Two adjusting bolts are respectively locked to two fixing nuts, and their ends are pressed against the top surface of the movable pulley support; Two adjusting nuts are respectively locked on the two adjusting bolts; A rope-breaking detection rod is arranged on the screw rod ear plate of the movable pulley seat plate; The micro switch is arranged on the side of the crossbeam on the cargo platform through a mounting bracket and corresponds to the upper end of the broken rope detection rod.

2. The movable pulley device with integrated loose rope tensioning and broken rope detection as claimed in claim 1, characterized in that: The fixing nut is an M30 high-strength large hexagonal nut for steel structure, the adjusting bolt is an M30 coarse-thread full-thread hexagonal head bolt, and the adjusting nut is an M30 coarse-thread hexagonal nut.

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