Efficient rock breaking impact device for coal mining

Abstract

The utility model belongs to the technical field of coal mining equipment, in particular to an efficient rock breaking impact device for coal mining, which comprises an equipment body, a cylinder, a control panel and a base support, the cylinder is arranged at the lower end of the equipment body, the control panel is arranged on the upper end face of the equipment body, and the base support is arranged at the bottom end of the cylinder. Through the arrangement of the telescopic circular truncated cone, the positioning ring, the connecting block, the limiting ring and the expansion nozzle, a group of hole structures need to be formed in the rock before use, the expansion nozzle is inserted into a hole in the rock, then the air cylinder is started, the air cylinder ejects the telescopic circular truncated cone outwards, and when the telescopic circular truncated cone is inserted into the inner side of the expansion nozzle, the expansion nozzle is opened. Due to the fact that the telescopic circular truncated cone is of the structural design with the narrow front portion and the wide rear portion, pressure is applied to the inner sides of the expansion nozzles through the side walls in the process of continuously moving towards the outer side, the three sets of expansion nozzles are stirred towards the outer side through the shaft body connecting pieces, and the internal structure of rock is damaged in the process of continuously expanding the expansion nozzles; in this way, the rock can be evenly crushed into blocks.

Description

Technical Field

[0001] The utility model relates to the technical field of coal mining equipment, in particular to a high-efficiency rock-breaking impact device for coal mining. Background Art

[0002] Coal mining refers to the process of extracting coal from underground deposits through mining operations. Mining operations primarily include rock breaking, loading, hauling, and soil removal to extract and elevate the coal. Coal mining requires the use of various mining techniques and equipment, such as drills, excavators, and transport vehicles.

[0003] The existing technology has the following deficiencies: the "three-axis grooving and drilling rock breaking device for coal mine rock tunnels" with publication number CN107386978B in the existing technology "includes a drill rod arranged on an adjusting bracket, the long direction of the drill rod is horizontal and one end is connected to a horizontal drive mechanism, a plurality of the drill rods are arranged in parallel and at intervals on the adjusting bracket, the horizontal drive mechanism drives the drill rod to move horizontally and perform drilling operations, and the spatial position of the drill rod on the adjusting bracket is adjustable."

[0004] The above structure increases the number of holes drilled per unit time by drilling three holes at a time, reduces the drilling time, and ensures the parallelism and angle uniformity between the holes. However, the structure still uses the traditional method of breaking rock from the outside to the inside. Since the pressure point is not fixed, this method easily causes the rock to be broken into uneven sizes, and the crushing needs to be done gradually inward, which is more time-consuming. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the utility model provides a high-efficiency rock breaking impact device for coal mining, which solves the current problems of uneven rock crushing pressure causing uneven crushing size and slow rock crushing speed.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a high-efficiency rock-breaking impact device for coal mining, comprising an equipment body, a cylinder, a control panel and a base bracket, wherein the cylinder is arranged at the lower end of the equipment body, the control panel is arranged on the upper end surface of the equipment body, and the base bracket is arranged at the bottom end of the cylinder.

[0007] A telescopic truncated platform is provided at the front end of the cylinder, and a positioning ring is provided at the periphery of the front end of the telescopic truncated platform.

[0008] The device body also includes a handle and an external air pipe. The handle is fixedly installed on the upper end of the device body, and the external air pipe is plugged into the rear end of the device body.

[0009] As a preferred technical solution of the present invention, the diameter of the telescopic truncated platform close to the cylinder is larger than that of the other end, and the end surface close to the cylinder is in a movable connection with the cylinder.

[0010] As an optimal technical solution of the present invention, the positioning ring also includes a connecting block, a limiting ring, an axial connecting piece and an expansion nozzle. The connecting block is fixedly connected to the inner end face of the positioning ring and six groups are provided. The limiting ring is fixedly connected to the other end of the connecting block.

[0011] As an optimal technical solution of the present invention, the shaft connecting parts are provided in three groups and are movably connected to the bottom end of the expansion nozzle, and a ring shaft structure is provided at the connection point to pass through it. The expansion nozzles are provided in three groups and establish a movable connection relationship with the three groups of shaft connecting parts respectively.

[0012] As a preferred technical solution of the present invention, the maximum angle to which the expansion nozzle can move through the shaft connecting piece is 25°, and the expansion is limited to the outward direction.

[0013] As a preferred technical solution of the present invention, when the expansion mouth is closed, its internal space is a truncated cone structure, and the inner diameter of the surface close to the outer side is narrower.

[0014] As a preferred technical solution of the present invention, the front bottom of the equipment body is welded to the upper end of the positioning ring, and the middle and rear ends of the bottom of the equipment body are fixedly connected to the upper end faces of both sides of the cylinder respectively.

[0015] Compared with the existing technology, the utility model provides a high-efficiency rock-breaking impact device for coal mining, which has the following beneficial effects:

[0016] The invention relates to an efficient rock-breaking impact device for coal mining. The device comprises a telescopic table, a positioning ring, a connecting block, a limiting ring and an expansion nozzle. Before use, a group of hole structures need to be opened on the rock. The operator controls the cylinder through the control panel, lifts the whole structure through the handle, inserts the expansion nozzle into the hole inside the rock, and then starts the cylinder. The cylinder pushes the telescopic table outward. When the telescopic table is inserted into the inner side of the expansion nozzle, since the telescopic table adopts a structural design of narrow front and wide back, pressure is applied to the inner side of the expansion nozzle through the side wall during continuous outward movement, so that the three groups of expansion nozzles are respectively pushed outward through the shaft connecting parts. In the process of continuous expansion of the expansion nozzle, the internal structure of the rock is destroyed and cracked from the inside. Through the above-mentioned arrangement and process, the device can change the traditional crushing method of applying pressure from the outside to the inside to a crushing method of applying pressure from the inside to the outside. This method applies pressure evenly, so that the rock can be evenly broken into pieces, and also accelerates the rock crushing speed, thereby improving the efficiency of coal mining. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2This is a schematic diagram of the side end structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the front-end structure of the utility model;

[0020] Figure 4 This is a schematic diagram of the disassembled structure of the expansion nozzle and positioning ring of the utility model.

[0021] In the figure: 1. Equipment body; 101. Handle; 102. External air pipe; 2. Cylinder; 3. Control panel; 4. Base bracket; 5. Telescopic round table; 6. Positioning ring; 601. Connecting block; 602. Limiting ring; 603. Shaft connector; 604. Expansion nozzle. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] In this embodiment: a high-efficiency rock-breaking impact device for coal mining includes an equipment body 1, a cylinder 2, a control panel 3 and a base bracket 4. The cylinder 2 is arranged at the lower end of the equipment body 1, the control panel 3 is arranged on the upper end surface of the equipment body 1, and the base bracket 4 is arranged at the bottom end of the cylinder 2.

[0024] A telescopic truncated platform 5 is provided at the front end of the cylinder 2 , and a positioning ring 6 is provided at the periphery of the front end of the telescopic truncated platform 5 .

[0025] The device body 1 further includes a handle 101 and an external air pipe 102 . The handle 101 is fixedly mounted on the upper end of the device body 1 , and the external air pipe 102 is plugged into the rear end of the device body 1 .

[0026] In this embodiment, the diameter of the telescopic table 5 on the side close to the cylinder 2 is larger than that on the other end, and the end face on the side close to the cylinder 2 establishes a movable connection with the cylinder 2; the positioning ring 6 also includes a connecting block 601, a limiting ring 602, an axial connecting piece 603 and an expansion nozzle 604, the connecting block 601 is fixedly connected to the inner end face of the positioning ring 6, and six groups are provided, and the limiting ring 602 is fixedly connected to the other end of the connecting block 601.

[0027] Specifically, such as Figure 1 and Figure 4 As shown, the positioning ring 6 and the limiting ring 602 are connected by six groups of connecting blocks 601, which can evenly distribute the pressure and improve the stability of the front end structure of the equipment.

[0028] In this embodiment, three groups of shaft connectors 603 are provided, and are movably connected to the bottom end of the expansion nozzle 604. A ring-shaped shaft structure is provided at the connection point and passes through it. Three groups of expansion nozzles 604 are provided, and a movably connected relationship is established with the three groups of shaft connectors 603 respectively; the maximum angle that the expansion nozzle 604 can move through the shaft connector 603 is 25°, and it is limited to expansion outward.

[0029] Specifically, such as Figure 2 and Figure 3 As shown, the three groups of expansion nozzles 604 exert pressure on the inner wall of the rock when expanding outward, thereby destroying the complete structure of the rock and causing it to break around the drilling position.

[0030] In this embodiment, after the expansion nozzle 604 is closed, its internal space is a truncated cone structure, and the inner diameter of the side close to the outside is narrower; the front bottom of the equipment body 1 is welded to the upper end of the positioning ring 6, and the middle and rear ends of the bottom of the equipment body 1 are fixedly connected to the upper end surfaces on both sides of the cylinder 2 respectively.

[0031] The working principle and use process of the present invention are as follows: before use, a group of hole structures need to be opened on the rock, the operator controls the cylinder 2 through the control panel 3, and then lifts the entire structure through the handle 101, inserts the expansion nozzle 604 into the hole inside the rock, and then starts the cylinder 2. The cylinder 2 pushes the telescopic table 5 outward. When the telescopic table 5 is inserted into the inner side of the expansion nozzle 604, since the telescopic table 5 adopts a structural design of narrow front and wide back, pressure is applied to the inner side of the expansion nozzle 604 through the side wall during the continuous movement outward, so that the three groups of expansion nozzles 604 are respectively pushed outward through the shaft connecting piece 603. In the process of continuous expansion of the expansion nozzle 604, the internal structure of the rock is destroyed and cracked from the inside.

[0032] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A high-efficiency rock-breaking impact device for coal mining, comprising a device body (1), a cylinder (2), a control panel (3) and a base bracket (4), wherein the cylinder (2) is arranged at the lower end of the device body (1), the control panel (3) is arranged on the upper end surface of the device body (1), and the base bracket (4) is arranged at the bottom end of the cylinder (2), characterized in that: A telescopic truncated platform (5) is provided at the front end of the cylinder (2), and a positioning ring (6) is provided on the periphery of the front end of the telescopic truncated platform (5); The device body (1) further comprises a handle (101) and an external air pipe (102), wherein the handle (101) is fixedly mounted on the upper end of the device body (1), and the external air pipe (102) is plugged into the rear end of the device body (1).

2. The high-efficiency rock-breaking impact device for coal mining according to claim 1, characterized in that: The diameter of the telescopic truncated platform (5) on the side close to the cylinder (2) is larger than that on the other end, and the end surface on the side close to the cylinder (2) is in a movable connection with the cylinder (2).

3. The high-efficiency rock-breaking impact device for coal mining according to claim 1 is characterized in that: The positioning ring (6) further comprises a connecting block (601), a limiting ring (602), an axial connecting piece (603) and an expansion nozzle (604); the connecting block (601) is fixedly connected to the inner end face of the positioning ring (6) and is provided in six groups; the limiting ring (602) is fixedly connected to the other end of the connecting block (601).

4. The high-efficiency rock-breaking impact device for coal mining according to claim 3, characterized in that: The shaft connecting members (603) are provided in three groups and are movably connected to the bottom end of the expansion nozzle (604), and a ring shaft structure is provided at the connection point to pass through it. The expansion nozzle (604) is provided in three groups and establishes a movably connected relationship with the three groups of shaft connecting members (603).

5. The high-efficiency rock-breaking impact device for coal mining according to claim 4, characterized in that: The maximum angle to which the expansion nozzle (604) can move through the shaft connection (603) is 25°, and is limited to expansion toward the outside.

6. The high-efficiency rock-breaking impact device for coal mining according to claim 3, characterized in that: When the expansion nozzle (604) is closed, its internal space is a truncated cone structure, and the inner diameter of the surface close to the outside is narrower.

7. The high-efficiency rock-breaking impact device for coal mining according to claim 1, characterized in that: The front bottom of the equipment body (1) is welded to the upper end of the positioning ring (6), and the middle and rear ends of the bottom of the equipment body (1) are fixedly connected to the upper end surfaces of both sides of the cylinder (2) respectively.

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