A protective device to prevent the breaking and jumping of the hoisting wire rope of the material car

Abstract

The utility model provides a protective device for preventing the wire rope of the material car winch from breaking and jumping, including: a proximity switch, an armature, a winch drum, and a mercury switch. The proximity switch is arranged on the two side walls of the material car winch wire rope guide rope window, and a set of devices with the proximity switch are installed on both sides of the wall, a set of guide rails are installed on the sensor side of the proximity switch, and the armature is installed at the lower end of the guide rail. The mercury switch is arranged at 30mm parallel to the horizontal plane of the normal thickness of the wire rope on the winch drum. The utility model adopts a set of mercury contacts arranged in parallel on the winch drum and a set of wire rope broken double protection devices installed at the wire rope guide rope window, which solves the hidden danger of the material car sliding down when the wire rope breaks and the wire rope jumps and rolls randomly in the winch system of the material car in the lime roasting kiln, effectively ensures the safety of the material car during the feeding process, and provides technical guarantee for the stable and high production of the lime roasting kiln.

Description

Technical Field

[0001] The utility model relates to the field of low-voltage electrical automation integrated control protection, and in particular to a protection device for preventing a material vehicle winch wire rope from breaking and jumping out of a slot. Background Art

[0002] In the lime vertical kiln roasting process system, the material car loading is the main production equipment. Its basic working principle is to drive the winch drum through an electric motor, and then drive the loading counterweight system in the inclined bridge of the material car up and down through the wire rope in the drum and the directional wheel group, so as to realize the purpose of vertical kiln material car ore loading. In the vertical kiln roasting process, the material car is an important process link that determines the roasting ore output and roasting quality. During the many years of use of the vertical kiln, the maintenance of its material car winch is a large workload in the maintenance of the vertical kiln equipment at the workstation. The main fault is that the inspection of the broken strands of the wire rope cannot be effectively and timely discovered and checked, which leads to the slippage and falling accidents of the material. Therefore, in the previous inspection and maintenance of the winch wire rope wear, due to the means of relying solely on the actual detection or inspection of personnel on site, the broken strands, wear or severe fracture of the wire rope on the winch drum cannot be discovered in time and effectively, causing great inconvenience to the smooth production of the vertical kiln. Summary of the invention

[0003] According to the problem that manual maintenance of the material car winch cannot timely and effectively find the fault of broken strands, wear or serious breakage of the wire rope on the winch drum, a protective device is provided to prevent the broken strands and jump of the wire rope of the material car winch. The utility model provides a set of mercury contacts arranged in parallel on the winch drum and a set of double protection devices for broken wire rope installed at the wire rope guide window, which effectively avoids the occurrence of winch drum wire rope system failure.

[0004] The technical means adopted by the utility model are as follows:

[0005] A protective device for preventing the wire rope of a material car from breaking and jumping out of the groove, comprising: a proximity switch, an armature, a hoisting drum, and a mercury switch;

[0006] The proximity switch is arranged on the two side walls at the guide rope window of the hoisting wire rope of the material car, and a set of devices with the proximity switch is installed on both sides of the wall, and a set of guide rails is installed on the sensor side of the proximity switch, and the armature is installed at the lower end of the guide rail;

[0007] The mercury switch is a detection device with a length of 300 mm and an electrical contact of a mercury device installed in the middle, and is arranged at a position 30 mm parallel to the horizontal plane of the normal thickness of the steel wire rope on the hoisting drum.

[0008] Furthermore, the upper section of the armature is connected to an aluminum slide wire with a diameter of 4 mm, which is perpendicular to the working wire rope of the material car winch and is 100 mm away from the working wire rope of the material car winch. The wire rope will not touch the slide wire in normal working conditions.

[0009] Furthermore, when the wire rope has broken strands and burrs, the burrs will touch the protective sliding wire. The movement of the protective sliding wire will drive the armature to move upward along the guide rail. When it moves to the proximity switch sensor, it will trigger the normally closed contact inside the proximity switch to open.

[0010] Furthermore, in a normal state of the mercury switch, the mercury inside is stationary and its contact state is in a normally closed state.

[0011] Furthermore, if the thickness of the winch drum wire rope on the drum changes and exceeds the normal thickness of 30 mm, the wire rope will touch the detection device under the drive of the drum winch electric rotation, causing the mercury inside the mercury switch to shake and the normally closed contact inside to be instantly disconnected.

[0012] Due to the adoption of the above technical solution, compared with the prior art, the utility model has the following advantages:

[0013] 1. The utility model provides a protective device for preventing the wire rope of the material car from breaking and jumping out of the groove, which can greatly improve the working efficiency of the lime roasting kiln feeding system and save labor costs.

[0014] 2. The utility model provides a protective device for preventing the wire rope of the material car winch from breaking and jumping out of the groove, which can improve the predictability of the deterioration of the material car winch system equipment.

[0015] 3. The utility model provides a protective device for preventing the wire rope of the material car winch from breaking and jumping out of the groove, which can effectively avoid the occurrence of slipping accidents of the lime roasting kiln material car winch.

[0016] 4. The utility model provides a protective device for preventing the wire rope of the material car from breaking and jumping out of the groove, which effectively improves the output stability of the lime roasting kiln.

[0017] 5. The utility model provides a protective device for preventing the wire rope of the material car from breaking and jumping out of the groove, which effectively reduces the occurrence of wire rope breakage and disorderly winding accidents of the hoisting drum, and ensures the safety and stability of the lime roasting material car loading process.

[0018] In summary, the technical solution of the utility model adopts a set of mercury contacts arranged in parallel on the winch drum and a set of double protection devices for wire rope breakage installed at the wire rope guide window, which effectively avoids the occurrence of wire rope system failures of the winch drum, and solves the problem that manual maintenance of the material car winch cannot promptly and effectively detect broken wire ropes, wear or severe fractures on the winch drum.

[0019] Based on the above reasons, the utility model can be widely promoted in the field of low-voltage electrical automation integrated control and protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0021] Figure 1 The utility model is a schematic diagram of a protective device for preventing the wire rope of a material truck from breaking and jumping out of the groove.

[0022] In the figure: 1. Proximity switch; 2. Armature; 3. Hoisting drum; 4. Mercury switch. DETAILED DESCRIPTION

[0023] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0024] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means a limitation on the utility model and its application or use. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0025] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the utility model. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0026] Unless otherwise specifically stated, the relative arrangement of the parts and steps described in these embodiments, the numerical expressions and numerical values ​​do not limit the scope of the utility model. At the same time, it should be clear that, for ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0027] In the description of the present utility model, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present utility model and simplifying the description. Unless otherwise stated, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present utility model: the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0028] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below their position devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0029] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the utility model.

[0030] like Figure 1 As shown, the utility model provides a protective device for preventing the wire rope of the material car from breaking and jumping out of the groove, comprising: a proximity switch 1, an armature 2, a hoisting drum 3, and a mercury switch 4;

[0031] The proximity switch 1 is arranged on the two side walls at the guide rope window of the hoisting wire rope of the material car, and a set of devices with the proximity switch 1 is installed on both sides of the wall, and a set of guide rails is installed on the sensor side of the proximity switch 1, and the armature 2 is installed at the lower end of the guide rail;

[0032] The mercury switch 4 is a detection device with a length of 300 mm and an electrical contact of a mercury device installed in the middle, and is arranged at a position 30 mm parallel to the normal thickness horizontal plane of the steel wire rope on the hoisting drum 3 .

[0033] Furthermore, the upper section of the armature 2 is connected to an aluminum sliding wire with a diameter of 4 mm, which is perpendicular to the working wire rope of the material car winch and is 100 mm away from the working wire rope of the material car winch. The wire rope will not touch the sliding wire in normal working state.

[0034] Furthermore, when the wire rope has broken strands and burrs, the burrs will touch the protective sliding wire. The movement of the protective sliding wire will drive the armature 2 to move upward along the guide rail. When it moves to the proximity switch 1 sensor, it will trigger the normally closed contact inside the proximity switch 1 to disconnect, causing its electrical control circuit to interlock.

[0035] Furthermore, in a normal state, the mercury in the mercury switch 4 is stationary, and its contact state is in a normally closed state.

[0036] Furthermore, when the thickness of the wire rope of the hoisting drum 3 changes on the drum and exceeds the normal thickness of 30 mm, the wire rope will touch the detection device under the drive of the electric rotation of the hoisting drum, causing the mercury inside the mercury switch 4 to shake, and its internal normally closed contact will be disconnected instantly, and its electrical control protection circuit will be interlocked and send an emergency stop command to the hoisting system, thereby achieving the goal of preventing the hoisting wire rope from jumping out of the groove.

[0037] Furthermore, when the PLC control program of the winch material truck receives any of the abnormal instructions, it sends an emergency stop command to the PLC control program of the winch system through the logical contact signal connected in series in the internal program, so that the winch system stops working immediately. Professional personnel must be arranged immediately to conduct a professional inspection of the wear condition of the wire rope of the winch system to avoid further aggravation of the wear and deterioration of the wire rope, effectively preventing the occurrence of wire rope failure in the material truck winch system.

[0038] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in the field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model.

Claims

1. A protective device to prevent the wire rope of the hoisting car from breaking and jumping out of the groove, characterized in that: include: Proximity switch, armature, winch drum, mercury switch; The proximity switch is arranged on the two side walls at the guide rope window of the hoisting wire rope of the material car, and a set of devices with the proximity switch is installed on both sides of the wall, and a set of guide rails is installed on the sensor side of the proximity switch, and the armature is installed at the lower end of the guide rail; The mercury switch is a detection device with a length of 300 mm and an electrical contact of a mercury device installed in the middle, and is arranged at a position 30 mm parallel to the horizontal plane of the normal thickness of the steel wire rope on the hoisting drum.

2. A protective device for preventing the wire rope of a material truck from breaking and jumping out of the groove according to claim 1, characterized in that: The upper end of the armature is connected to an aluminum slide wire with a diameter of 4 mm, which is perpendicular to the working wire rope of the material car winch and is 100 mm away from the working wire rope of the material car winch. The wire rope will not touch the slide wire in normal working condition.

3. The protective device for preventing the wire rope of the hoisting car from breaking and jumping out of the groove according to claim 1 is characterized in that: In a normal state of the mercury switch, the mercury inside is stationary and its contact state is in a normally closed state.

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