Drill rod guard plate correcting device

Abstract

The drill rod guard plate correcting device comprises a pressing plate, a supporting table and a pressing driving mechanism, the supporting table is fixedly connected to the middle of a workbench, the size of the top face of the supporting table is larger than that of a guard plate, and a positioning pin is arranged in the center of the top of the supporting table and can movably penetrate through a mounting through hole in the middle of the guard plate; the two sides of the pressing plate are movably connected to the two guide stand columns, the lower ends of the guide stand columns are fixedly connected to the workbench and located on the two sides of the supporting table, the pressing driving mechanism is connected to the pressing plate and can move the pressing plate downwards to extrude the protection plate, an avoiding through hole is formed in the middle of the pressing plate, and the positioning pin can movably penetrate into the positioning pin. And the pressing driving mechanism is arranged remotely, so that an operator can perform remote operation after placing the protective plate, and the operation safety is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of mining tools, and in particular relates to a drill rod guard plate correction device. Background Art

[0002] In the process of excavating underground metal mines, drill rods are used to regularly handle loose gravel on the top to facilitate support and protection. However, the existing drill rods are more than 2 meters long. During operation, gravel falls and easily injures the operator, causing safety accidents. In order to solve this problem, Figure 3 As shown in the figure, a guard plate is installed at one end of the drill rod to block stones. With use, the guard plate is often deformed by stones, affecting the protective effect. Therefore, it is necessary to regularly calibrate the guard plate to restore it to its original state. The current calibration method is to directly hammer it flat with a handheld tool, which is not only time-consuming and labor-intensive, but also has a low safety factor and is prone to injuries. Summary of the invention

[0003] The purpose of the present invention is to provide a drill rod guard plate correction device to solve the problem that current manual correction is prone to causing injuries and is time-consuming and labor-intensive.

[0004] The technical solution adopted by the present invention is a drill rod guard plate correction device, including a pressing plate, a support platform and a pressing drive mechanism. The support platform is fixedly connected to the middle part of the workbench, and the top surface is larger than the guard plate. A positioning pin is provided at the center of the top of the support platform, and the positioning pin can movably pass through the mounting through hole in the middle part of the guard plate. The two sides of the pressing plate are movably connected to two guide columns. The lower ends of the guide columns are fixedly connected to the workbench and are located on both sides of the support platform. The pressing drive mechanism is connected to the pressing plate and can move the pressing plate downward to squeeze the guard plate. An avoidance through hole is provided in the middle part of the pressing plate, and the positioning pin can movably penetrate into the positioning pin.

[0005] Preferably, the pressing drive mechanism comprises a pressing fork, a connecting rod 1, a connecting rod 2 and a hydraulic cylinder. The pressing fork is an arc-shaped structure, and its double fork parts are both provided with an arc-shaped through groove. A sliding shaft is movably passed through each arc-shaped through groove. Both ends of the sliding shaft are fixedly connected to the top of the pressing plate through two shaft seats. The four shaft seats are symmetrically arranged in pairs on both sides of the center of the top surface of the pressing plate. The arc length of the arc-shaped through groove can meet the requirement that the pressing plate moves to the set lowest point to extrude the guard plate. A horizontal connecting rod is provided at the right end of the double fork part, which is integrated with it. A hinged seat 1 is provided near the middle of the horizontal connecting rod, the right end of the horizontal connecting rod is hinged to connecting rod 1, the other end of connecting rod 1 is hinged to the cylinder rod of the hydraulic cylinder, the tail end of the cylinder seat of the hydraulic cylinder is hinged on hinged seat 2, hinged seat 2 is located at the lower right of hinged seat 1, both ends of connecting rod 2 are hinged to connecting rod 1 near the upper middle part and the left end of the top of the cylinder seat of the hydraulic cylinder, the extension and contraction of the hydraulic cylinder can drive the hydraulic cylinder to press the pressing plate up and down, and both hinged seat 1 and hinged seat 2 are fixedly connected to the mounting frame, and the mounting frame is located on the right side of the workbench.

[0006] Preferably, a return spring is provided on the guide column, and two ends of the return spring respectively abut against a step provided at the lower end of the guide column and the bottom of the pressing plate.

[0007] Preferably, a limiting groove is provided at the bottom of the pressing plate, and the limiting groove can be inserted into the guard plate.

[0008] Preferably, triangular cross-section notches are provided on the left and right sides of the top surface of the support platform.

[0009] Preferably, the guide column and the pressing plate are connected by a ball linear bearing.

[0010] Compared with the prior art, the beneficial effect of the present invention is that the pressing drive mechanism is designed to be arranged remotely, which allows the operator to operate remotely after placing the guard plate, thereby improving operational safety. The pressing drive mechanism adopts a connecting rod to drive extrusion. When in use, the cylinder rod of the hydraulic cylinder retracts, and the triangle formed at the cylinder rod becomes smaller, driving the upper end of the connecting rod to move upward, thereby driving the horizontal connecting rod to rotate counterclockwise around the hinge seat, thereby driving the double fork portion integrated with the horizontal connecting rod to press the pressing plate. Due to the coordinated use of the arc-shaped through groove and the sliding shaft, the pressing process realizes arc-shaped movement and rotation around the sliding shaft. When the cylinder rod is extended, the pressing plate can be pulled back to the initial position. The correction process is smooth and stable, the correction quality is good, and it is also convenient to set an extrusion force-saving arm structure to reduce energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a front structural schematic diagram of the drill rod guard plate correction device; Figure 2 It is a side structural schematic diagram of the drill rod guard plate correction device; Figure 3 It is a schematic diagram of the drill rod guard plate structure. DETAILED DESCRIPTION

[0012] The present invention will be further explained below in conjunction with the accompanying drawings to facilitate better understanding by those skilled in the art.

[0013] Example 1 like Figure 1-2As shown, the mine drill rod guard plate correction device includes a pressing plate 1, a support platform 2 and a pressing drive mechanism 3. The support platform 2 is fixedly connected to the middle part of the workbench 4, and the top surface size is larger than the guard plate 5. A positioning pin 6 is arranged at the center of the top of the support platform 2, and the positioning pin 6 can movably pass through the mounting through hole 7 in the middle of the guard plate 5. The two sides of the pressing plate 1 are movably connected to two guide columns 8. The guide columns 8 and the pressing plate 1 are connected by ball linear bearings, which have good linear guiding performance and low friction. The lower ends of the guide columns 8 are fixedly connected to the workbench 4 and are located on both sides of the support platform 2. The pressing drive mechanism 3 is connected to the pressing plate 1 and can move the pressing plate 1 downward to squeeze the guard plate 5. An avoidance through hole 9 is arranged in the middle of the pressing plate 1, and the positioning pin 9 can movably penetrate into the positioning pin 6. Specifically, the pressing drive mechanism 3 includes a pressing fork 301, a connecting rod 1 302, a connecting rod 2 303 and a hydraulic cylinder 304. The pressing fork 301 is an arc-shaped structure, and its double fork portion 310 is provided with an arc-shaped through groove 305. Each arc-shaped through groove 305 is movably passed through a sliding shaft 306. The two ends of the sliding shaft 306 are fixedly connected to the top of the pressing plate 1 through two shaft seats 308. The four shaft seats 308 are symmetrically arranged on both sides of the center of the top surface of the pressing plate 1. The arc length of the arc-shaped through groove 305 can meet the pressing plate moving to the set lowest point to extrude the guard plate 5. The right end of the double fork portion 310 is provided with a horizontal connecting rod 309 integrated therewith. A hinged seat 311 is provided near the middle of 309, the right end of the horizontal connecting rod 309 is hinged to the connecting rod 302, the other end of the connecting rod 302 is hinged to the cylinder rod of the hydraulic cylinder 304, the tail end of the cylinder seat of the hydraulic cylinder 304 is hinged on the hinged seat 2 312, the hinged seat 2 312 is located at the lower right of the hinged seat 1 311, and the two ends of the connecting rod 2 303 are respectively hinged to the connecting rod 1 302 near the upper middle part and the left end of the top of the cylinder seat of the hydraulic cylinder 304. The extension and retraction of the hydraulic cylinder 304 can drive the hydraulic cylinder 304 to press the pressing plate 1 up and down, and the hinged seat 1 311 and the hinged seat 2 312 are fixedly connected to the mounting frame 313, and the mounting frame 313 is located on the right side of the workbench 4. When in use, the cylinder rod of the hydraulic cylinder 304 retracts, and the triangle formed at the cylinder rod becomes smaller, driving the upper end of the connecting rod 302 to move upward, thereby driving the horizontal connecting rod 309 to rotate counterclockwise around the hinge seat 311, thereby driving the double fork portion 310 integrated with the horizontal connecting rod 309 to press the pressing plate 1. Due to the coordinated use of the arc-shaped through groove 305 and the sliding shaft 306, the pressing process realizes arc-shaped movement and rotation around the sliding shaft 306. When the cylinder rod is extended, the pressing plate 1 can be pulled back to the initial position. The pressing drive mechanism 3 is arranged at a long distance, which allows the operator to place the guard plate 5 and then operate at a long distance, thereby improving operational safety. In addition, the connecting rod is used to drive the extrusion, and the extrusion is smooth and stable, the correction quality is good, and it is also convenient to set a force arm structure for extrusion saving to reduce energy consumption.

[0014] In order to quickly restore the pressing plate 1 to its initial position after being pressed, a return spring 10 is provided on the guide column 8, and both ends of the return spring 10 respectively abut against the step 307 provided at the lower end of the guide column 8 and the bottom of the pressing plate 1. The use of the return spring 10 can quickly reset the pressing plate 1 and play a role in further auxiliary support of the pressing plate 1, which is safer during the process of removing and installing the guard plate 5.

[0015] A limiting groove 11 is set at the bottom of the pressing plate 1, and the limiting groove 11 can be stuck into the guard plate 5. Triangular cross-section notches 12 are set on the left and right sides of the top surface of the support platform 2. The triangular cross-section notches 12 match the bending parts on both sides of the guard plate 5 and can play a limiting role. During the extrusion process, since the bending part is small, there is no need for extrusion; finally, when pressing and correcting the guard plate 5, the limiting groove 11 can play a better role in stabilizing the guard plate 5, and cooperate with the triangular cross-section notches 12 on both sides of the support platform to achieve a better effect.

[0016] The above-described embodiments are only for describing the preferred implementation of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit and principles of the present invention, various modifications and improvements made by those skilled in the art to the technical solution of the present invention should all fall within the scope of protection determined by the claims of the present invention.

Claims

1. A drill rod guard plate correction device, characterized in that: The invention comprises a pressing plate (1), a supporting platform (2) and a pressing driving mechanism (3); the supporting platform (2) is fixedly connected to the middle of the workbench (4) and has a top surface larger than the guard plate (5); a positioning pin (6) is arranged at the center of the top of the supporting platform (2); the positioning pin (6) can movably pass through a mounting through hole (7) in the middle of the guard plate (5); the two sides of the pressing plate (1) are movably connected to two guide columns (8); the lower ends of the guide columns (8) are fixedly connected to the workbench (4) and are located on both sides of the supporting platform (2); the pressing driving mechanism (3) is connected to the pressing plate (1) and can move the pressing plate (1) downward to squeeze the guard plate (5); an avoidance through hole (9) is arranged in the middle of the pressing plate (1); the positioning pin (6) can movably pass through the positioning pin (6).

2. A drill rod guard plate correction device according to claim 1, characterized in that: The pressing drive mechanism (3) comprises a pressing fork (301), a connecting rod 1 (302), a connecting rod 2 (303) and a hydraulic cylinder (304). The pressing fork (301) is an arc-shaped structure. Its double fork portion (310) is provided with an arc-shaped through groove (305). A sliding shaft (306) movably passes through each arc-shaped through groove (305). The two ends of the sliding shaft (306) are fixedly connected to the top of the pressing plate (1) through two shaft seats (308). The four shaft seats (308) are symmetrically arranged in pairs on both sides of the center of the top surface of the pressing plate (1). The arc length of the arc-shaped through groove (305) can meet the requirements of the pressing plate moving to the set lowest position to extrude the guard plate (5). The right end of the double fork portion (310) is provided with a horizontal connecting rod (309) integrated therewith. The horizontal connecting rod (309) ) is provided with an articulated seat 1 (311) near the middle, the right end of the horizontal connecting rod (309) is hinged to the connecting rod 1 (302), the other end of the connecting rod 1 (302) is hinged to the cylinder rod of the hydraulic cylinder (304), the tail end of the cylinder seat of the hydraulic cylinder (304) is hinged to the articulated seat 2 (312), the articulated seat 2 (312) is located at the lower right of the articulated seat 1 (311), the two ends of the connecting rod 2 (303) are respectively hinged to the connecting rod 1 (302) near the middle and upper part and the left end of the top of the cylinder seat of the hydraulic cylinder (304), the hydraulic cylinder (304) can be extended and retracted to drive the hydraulic cylinder (304) to press the pressing plate (1) up and down, the articulated seat 1 (311) and the articulated seat 2 (312) are both fixedly connected to the mounting frame (313), and the mounting frame (313) is located on the right side of the workbench (4).

3. A drill rod guard plate correction device according to claim 1, characterized in that: The guide column (8) is provided with a return spring (10), and the two ends of the return spring (10) respectively abut against a step 307 provided at the lower end of the guide column (8) and the bottom of the pressing plate (1).

4. A drill rod guard plate correction device according to claim 1, characterized in that: The bottom of the pressing plate (1) is provided with a limiting groove (11), which can be snapped into the guard plate (5).

5. A drill rod guard plate correction device according to claim 1, characterized in that: The left and right sides of the top surface of the support platform (2) are provided with triangular cross-section notches (12).

6. A drill rod guard plate correction device according to claim 1, characterized in that: The guide column (8) and the pressing plate (1) are connected by a ball linear bearing.

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