Safety guard for strip steel

Abstract

The utility model relates to the strip steel safety protection equipment field, especially a kind of strip steel safety protection device, including base, and the lower shell of upper end opening is fixedly arranged on base;The upper shell of lower end opening is hingedly cooperated on the lower shell;Rotary shaft for winding strip steel roll is rotationally arranged in the middle part of lower shell top surface;Compression assembly for compacting strip steel roll is mounted on the bottom surface of the inner side of lower shell;Discharge port is opened in the side wall of lower shell. Form around type protection space by upper and lower shell hingedly, cooperate the compression assembly in lower shell to continue stable compacting to strip steel roll, can reduce the security risk that strip steel remaining amount is less and opens due to tension imbalance, guarantee the personal safety of construction personnel and underground equipment safety;And upper and lower shell open and close conveniently, adapt the placement and unfolding operation of strip steel roll, overall structure adapts the mobile support scene of multiple operation surface in coal mine underground, effectively improve the security and efficiency of supporting operation.

Description

Technical Field

[0001] This utility model relates to the field of strip steel safety protection equipment, and in particular to a strip steel safety protection device. Background Technology

[0002] In underground coal mine support operations, strip steel is one of the core support materials and needs to be deployed gradually according to the construction progress. Due to the large volume and heavy weight of the support strip steel, it is traditionally placed in a simple fixed frame, with the foundation only enclosed by the side walls of the frame. However, when the remaining amount of strip steel is reduced to less than 1 / 5, its winding tension becomes unbalanced, and it is prone to suddenly springing open due to inertia during the deployment process. This may not only cause malfunctions by impacting underground equipment, but also directly threaten the personal safety of construction personnel. At the same time, sudden shutdowns will also reduce the efficiency of support operations, becoming a core safety hazard in the use of strip steel in underground coal mines.

[0003] To address the issue of strip springback, existing technologies already contain relevant protective designs. For example, the utility model patent with publication number CN213793534U, "Protective Mechanism for Steel Strip Uncoiling Machine," uses a cylinder to drive a diagonal rod to rotate, which in turn drives a push rod to control the beam plate to descend. This causes the rollers at the bottom of the beam plate to fit against the outside of the steel coil, thus limiting the springback of the steel coil. This solution is mainly used for the protection of steel strip uncoiling machines in production lines, achieving protective functions in fixed scenarios through integration with the uncoiling machine.

[0004] However, the technical solutions in the aforementioned comparative documents have significant drawbacks in the scenario of supporting strip steel in underground coal mines: First, the mechanism is fixedly connected to the uncoiler and cannot be moved, making it difficult to adapt to the needs of mobile support for multiple working faces in underground coal mines; Second, the steel coil is only pressed at a single point by the top roller, which is insufficient for wrapping the strip steel with a small remaining amount and easily changeable shape, and there is still a risk of it springing open. Utility Model Content

[0005] To address the problem that current methods, which rely solely on top rollers to hold steel coils at a single point, are insufficient for wrapping small, easily deformable strips and still pose a risk of springing off, this invention provides a strip safety protection device.

[0006] To solve the above problems, the technical solution adopted by this utility model is as follows: A strip steel safety protection device includes a base, a lower shell with an upper opening fixedly mounted on the base, an upper shell with a lower opening hinged to the lower shell, a rotating shaft for winding strip steel coils rotatably mounted in the center of the top surface of the lower shell, a clamping assembly for pressing the strip steel coils installed on the inner bottom surface of the lower shells in conjunction with the strip steel coils, and a discharge port on the side wall of the lower shells. The hinged upper and lower shells form a surrounding protective space, and the clamping assembly within the lower shells continuously and stably presses the strip steel coils, reducing the safety hazard of the strip springing open due to tension imbalance when the remaining strip steel is low, thus ensuring the safety of construction personnel and underground equipment. Furthermore, the upper and lower shells are easy to open and close, adapting to the placement and unfolding of strip steel coils. The overall structure is suitable for mobile support scenarios with multiple working faces in underground coal mines, effectively improving the safety and efficiency of support operations.

[0007] Preferably, the clamping assembly includes a clamping roller; both ends of the clamping roller are rotatably mounted on the upper sleeve; the upper sleeve is fitted inside the lower sleeve; a spring is fixedly mounted inside the lower sleeve; the end of the spring away from the lower sleeve is fixedly connected to the inner top surface of the upper sleeve; the lower sleeve is fixedly mounted on the base; and an elongated hole is provided on the lower housing to match the clamping roller. This clamping assembly utilizes the continuous elastic pressure provided by the spring to drive the upper sleeve to rise and fall along the lower sleeve, ensuring that the clamping roller always adheres to the surface of the strip coil, thus adapting to diameter changes during the strip coil's unfolding process. The rotatable clamping roller, coupled with the elongated hole in the lower housing, achieves stable clamping of the strip coil, effectively preventing it from springing open, without hindering normal strip discharge. The structure is simple and highly adaptable.

[0008] Preferably, a hinge seat is fixedly provided on the top surface of the outer wall of the upper sleeve; the pressure roller is rotatably mounted on the hinge seat. The hinge seat on the top surface of the upper sleeve provides a stable mounting point for the pressure roller, and the rotatable mounting of the pressure roller on the hinge seat ensures structural stability during the pressing process, and allows the pressure roller to rotate with the unfolding of the strip steel, effectively reducing the frictional resistance between the strip steel and the roller body, avoiding scratches on the surface of the strip steel, and ensuring that the pressing of the strip steel coil is always smooth and does not affect the normal output of the strip steel.

[0009] Preferably, a guide roller is rotatably mounted inside the lower housing; one end of the guide roller is rotatably mounted on the inner wall of the lower housing and is located at the discharge port. The guide roller at the discharge port can precisely guide the strip steel discharge direction, reducing friction and scratches between the strip steel and the edge of the lower housing discharge port during discharge. At the same time, the rotatably mounted guide roller converts sliding friction into rolling friction, reducing the resistance to strip steel unfolding, ensuring smooth and stable strip steel discharge, and guaranteeing the continuity and efficiency of support operations.

[0010] Preferably, a maintenance opening is provided on the outer wall of the lower housing. The maintenance opening on the outer wall of the lower housing facilitates the pre-guidance of the steel coil discharge by the operator.

[0011] Preferably, lower bearing housings are installed on both sides of the middle of the top surface of the lower housing; upper bearing housings are installed on both sides of the middle of the bottom surface of the upper housing; both ends of the rotating shaft are mounted in the lower and upper bearing housings via bearings. The upper and lower bearing housings are respectively installed on the top surface of the lower housing and the bottom surface of the upper housing, providing bidirectional stable support for the rotating shaft. The bearing connection ensures precise installation and positioning of the rotating shaft, preventing any offset or shaking during rotation.

[0012] Preferably, the outer wall of the lower housing on the side away from the discharge port is hinged to the upper housing via a hinge. This hinged connection between the lower housing and the upper housing on the side away from the discharge port facilitates opening and closing for placing and replacing the strip coils without interfering with normal strip discharge, making operation convenient.

[0013] Preferably, sliders are installed at the corners of the base's bottom surface; the sliders are slidably mounted on the guide rail. The base, through the cooperation of the sliders at its bottom corners with the guide rail, allows the device to move flexibly along the guide rail, adapting to the mobile support needs of multiple working faces in underground coal mines, making relocation convenient and efficient.

[0014] As can be seen from the above technical solutions, the advantages of this utility model include: the upper and lower shells are hinged to form a surrounding protective space, and the pressing components in the lower shell continuously and stably press the strip steel coil, which can reduce the safety hazard of the strip steel coil springing open due to tension imbalance when the remaining amount of strip steel is small, and ensure the safety of construction personnel and underground equipment; moreover, the upper and lower shells are easy to open and close, which is suitable for the placement and unfolding of the strip steel coil, and the overall structure is suitable for the mobile support scenario of multiple working faces in underground coal mines, effectively improving the safety and efficiency of support operations. Attached Figure Description

[0015] To more clearly illustrate the technical solution of this utility model, the drawings used in the description will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of this utility model.

[0017] Figure 2 This is a cross-sectional view of the present invention. Figure 1 .

[0018] Figure 3 This is a cross-sectional view of the present invention. Figure 2 .

[0019] Explanation of reference numerals in the attached drawings: 1-base, 2-lower housing, 3-upper housing, 4-rotating shaft, 5-steel coil, 6-pressure roller, 7-upper sleeve, 8-lower sleeve, 9-spring, 10-guide roller, 11-lower bearing housing, 12-upper bearing housing, 13-guide rail, 14-hinge, 15-slider; 201 - Discharge port, 202 - Long strip hole, 203 - Maintenance port; 701 - Hinge seat. Detailed Implementation

[0020] To make the objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the specific embodiments. Obviously, the embodiments described below are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this patent, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this patent.

[0021] like Figure 1-3 As shown, a steel strip safety protection device includes a base 1, a lower housing 2 with an upper opening fixedly mounted on the base 1, an upper housing 3 with a lower opening hinged to the lower housing 2, a rotating shaft 4 for winding a steel strip coil 5 rotatably mounted at the center of the top surface of the lower housing 2, a clamping assembly for pressing the steel strip coil 5 mounted on the inner bottom surface of the lower housing 2 in conjunction with the steel strip coil 5, and a discharge port 201 opened on the side wall of the lower housing 2. The outer wall of the top surface of the lower housing 2 away from the discharge port 201 is hinged to the upper housing 3 by a hinge 14. Slider blocks 15 are installed at the corners of the bottom surface of the base 1; the sliders 15 are slidably mounted on guide rails 13.

[0022] The upper and lower shells 2 are hinged to form a surrounding protective space. Combined with the clamping components inside the lower shell 2, the strip coil 5 is continuously and stably clamped, reducing the safety hazard of the strip coil springing open due to tension imbalance when the remaining amount of strip is low, thus ensuring the safety of construction personnel and underground equipment. Furthermore, the upper and lower shells 2 are easy to open and close, adapting to the placement and unfolding of the strip coil 5. The overall structure is suitable for mobile support scenarios with multiple working faces in underground coal mines, effectively improving the safety and efficiency of support operations. The side of the lower shell 2 away from the discharge port 201 is hinged to the upper shell 3 via a hinge 14, facilitating opening and closing for placing and replacing the strip coil 5 without interfering with normal strip discharge, making operation convenient. The base 1, through the slider 15 at the bottom corner, cooperates with the guide rail 13, allowing the device to move flexibly along the guide rail 13, adapting to the mobile support needs of multiple working faces in underground coal mines, making transfer convenient and efficient.

[0023] In the above configuration, a guide roller 10 is rotatably mounted inside the lower housing 2; one end of the guide roller 10 is rotatably mounted on the inner wall of the lower housing 2 and is located at the discharge port 201. A maintenance port 203 is provided on the outer wall of the lower housing 2. Lower bearing housings 11 are installed on both sides of the middle of the top surface of the lower housing 2; upper bearing housings 12 are installed on both sides of the middle of the bottom surface of the upper housing 3; both ends of the rotating shaft 4 are mounted in the lower bearing housings 11 and the upper bearing housings 12 via bearings. The guide roller 10 at the discharge port 201 can precisely guide the strip steel discharge direction, reducing friction and scratches between the strip steel and the edge of the discharge port 201 of the lower housing 2 during discharge. At the same time, the rotatably mounted guide roller 10 converts sliding friction into rolling friction, reducing the resistance to strip steel unfolding, ensuring smooth and stable strip steel discharge, and guaranteeing the continuity and efficiency of support operations. The maintenance port 203 on the outer wall of the lower housing 2 facilitates the pre-guidance of the strip steel coil 5 by the staff. The upper bearing housing 12 and the lower bearing housing 11 are respectively installed on the top surface of the lower housing 2 and the bottom surface of the upper housing 3, providing bidirectional stable support for the rotating shaft 4. The bearing connection ensures that the rotating shaft 4 is accurately positioned and does not deviate or wobble during rotation.

[0024] The clamping assembly includes a clamping roller 6; both ends of the clamping roller 6 are rotatably mounted on the upper sleeve 7; the upper sleeve 7 is fitted inside the lower sleeve 8; a spring 9 is fixedly mounted inside the lower sleeve 8; the end of the spring 9 away from the lower sleeve 8 is fixedly connected to the inner top surface of the upper sleeve 7; the lower sleeve 8 is fixedly mounted on the base 1; an elongated hole 202 is provided on the lower housing 2 to accommodate the clamping roller 6. A hinge seat 701 is fixedly mounted on the top surface of the outer wall of the upper sleeve 7; the clamping roller 6 is rotatably mounted on the hinge seat 701.

[0025] The clamping assembly utilizes spring 9 to provide continuous elastic pressure, driving the upper sleeve 7 to rise and fall along the lower sleeve 8, ensuring that the clamping roller 6 remains in contact with the surface of the strip coil 5. This adapts to the diameter changes during the unfolding process of the strip coil 5. The clamping roller 6 is rotatably positioned to engage with the elongated hole 202 in the lower housing 2, achieving stable clamping of the strip coil 5, effectively preventing it from springing open, while not obstructing normal strip discharge. The structure is simple and highly adaptable. The hinge seat 701 on the top surface of the upper sleeve 7 provides a stable mounting point for the clamping roller 6, and the clamping roller 6 is rotatably mounted on the hinge seat 701. This ensures structural stability during clamping and allows the clamping roller 6 to rotate with the unfolding of the strip, effectively reducing the frictional resistance between the strip and the roller body, preventing scratches on the strip surface, and ensuring smooth clamping of the strip coil 5 without affecting normal strip discharge.

[0026] The working principle of the strip steel safety protection device is as follows: First, the upper housing 3 is opened by hinge 14, and the rotating shaft 4 with the strip steel coil 5 is placed on the lower housing 2. After the upper housing 3 is closed, the upper bearing housing 12 and the lower bearing housing 11 form a bidirectional stable support for the rotating shaft 4. The clamping assembly in the lower housing 2 drives the upper sleeve 7 to rise and fall along the lower sleeve 8 through the elastic force of the spring 9, so that the clamping roller 6 always fits against the surface of the strip steel coil 5, adapting to the diameter change of the strip steel coil 5 during the unfolding process. At the same time, the clamping roller 6 rotates flexibly through the hinge seat 701 to reduce friction with the strip steel. The strip steel coil 5 is pre-guided to the discharge port 201 through the maintenance port 203 of the lower housing 2. During operation, the strip steel is discharged from the discharge port 201 of the lower housing 2. The guide roller 10 at the discharge port 201 guides the strip steel, converting sliding friction into rolling friction to ensure smooth discharge. When it is necessary to move the working surface, the base 1 slides along the guide rail 13 through the slider 15 at the bottom corner, realizing flexible movement of the device.

[0027] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A steel strip safety protection device, comprising a base (1), characterized in that, A lower housing (2) with an upper opening is fixedly installed on the base (1); an upper housing (3) with a lower opening is hinged to the lower housing (2); a rotating shaft (4) for winding the steel coil (5) is rotatably installed in the middle of the top surface of the lower housing (2); a clamping assembly for pressing the steel coil (5) is installed on the bottom inner side of the lower housing (2) in conjunction with the steel coil (5); and a discharge port (201) is opened on the side wall of the lower housing (2).

2. The strip steel safety protection device according to claim 1, characterized in that, The clamping assembly includes a clamping roller (6); both ends of the clamping roller (6) are rotatably mounted on the upper sleeve (7); the upper sleeve (7) is fitted inside the lower sleeve (8); a spring (9) is fixedly mounted inside the lower sleeve (8); one end of the spring (9) away from the lower sleeve (8) is fixedly connected to the inner top surface of the upper sleeve (7); the lower sleeve (8) is fixedly mounted on the base (1); and an elongated hole (202) is provided on the lower housing (2) to cooperate with the clamping roller (6).

3. The strip steel safety protection device according to claim 2, characterized in that, A hinge seat (701) is fixedly installed on the top surface of the outer wall of the upper sleeve (7); the pressure roller (6) is rotatably installed on the hinge seat (701).

4. The strip steel safety protection device according to claim 1, characterized in that, A guide roller (10) is rotatably installed inside the lower housing (2); one end of the guide roller (10) is rotatably installed on the inner wall of the lower housing (2) and is located at the discharge port (201).

5. The strip steel safety protection device according to claim 4, characterized in that, A maintenance port (203) is provided on the outer wall of the lower housing (2).

6. The strip steel safety protection device according to claim 1, characterized in that, The lower housing (2) has a lower bearing housing (11) installed on both sides of the middle of the top surface; the upper housing (3) has an upper bearing housing (12) installed on both sides of the middle of the bottom surface; the two ends of the rotating shaft (4) are set in the lower bearing housing (11) and the upper bearing housing (12) through bearings.

7. The strip steel safety protection device according to claim 1, characterized in that, The outer wall of the lower shell (2) on the side away from the discharge port (201) is hinged to the upper shell (3) by a hinge (14).

8. The strip steel safety protection device according to claim 1, characterized in that, The base (1) has sliders (15) installed at the bottom corners; the sliders (15) are slidably set on the guide rail (13).

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