Mining air pick capable of automatically removing slag

Abstract

The utility model discloses a mining air pick capable of automatically removing slag, and relates to the technical field of air picks. The mining air pick capable of automatically removing slag comprises an air pick shell, the slag removal assembly comprises a connecting cover, the surface of the connecting cover is rotatably connected with a protective cover, the inner wall of the protective cover is fixedly connected with a plurality of blades, the lower end of the connecting cover is provided with a plurality of vent holes, and the lower end of the protective cover is fixedly connected with a connecting plate; a plurality of second cleaning brushes are fixedly connected to the lower end of the connecting plate, a plurality of first cleaning brushes are fixedly connected to the upper end of the protective cover, the blades are driven to rotate by waste gas generated by impact of the piston, the first cleaning brushes and the second cleaning brushes are driven to synchronously remove slag, and the first cleaning brushes annularly distributed at the upper end remove dust particles; and the second cleaning brush at the lower end quickly sweeps rock debris accumulated around the pickaxe drill rod at high frequency through rotating centrifugal force, so that the slag removal efficiency is improved, and the automation degree of the device is improved.

Description

Technical Field

[0001] This utility model relates to the field of pneumatic pick technology, and in particular to a mining pneumatic pick with automatic slag removal. Background Technology

[0002] Mining pneumatic picks are essential tools in mining, tunneling, and other engineering projects. They use compressed air to drive an internal piston in reciprocating motion, enabling the crushing of hard materials such as rock. Their efficiency and reliability directly impact project progress and quality. In actual mining operations, the continuous impact of the pneumatic pick on crushing rock generates a large amount of slag, dust, and other debris. This debris easily adheres to the heat dissipation holes, air inlets, and other gaps in the pneumatic pick's surface.

[0003] Existing methods for cleaning slag using pneumatic picks in mining have many drawbacks. Manual cleaning requires frequent interruptions to work, using tools such as brushes and air guns, which not only consumes a lot of time and labor costs, but also poses a high safety risk to personnel operating at close range in hazardous mining environments. Some pneumatic picks with simple slag-cleaning structures often use independent motors to drive the slag-cleaning components, which not only increases the energy consumption and manufacturing cost of the equipment, but also makes the motors prone to damage in dusty and humid mining environments, resulting in poor reliability of the slag-cleaning function. Therefore, this utility model proposes a novel solution. Utility Model Content

[0004] The purpose of this utility model is to at least solve one of the technical problems existing in the prior art, and to provide an automatic slag-removing mining pneumatic pick. This can solve the problem that some pneumatic picks with simple slag-removing structures often use independent motors to drive the slag-removing components, which not only increases the energy consumption and manufacturing cost of the equipment, but also leads to poor reliability of the slag-removing function because the motor is easily damaged in dusty and humid mining environments.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an automatic slag-removing mining pneumatic pick, comprising a pneumatic pick housing;

[0006] The slag removal assembly is mounted on the housing of the pneumatic hammer. The slag removal assembly includes a connecting cover, which is fixedly connected to the surface of the pneumatic hammer housing. An air inlet pipe is fixedly connected to the surface of the pneumatic hammer housing, and an exhaust hole is opened on the surface of the pneumatic hammer housing.

[0007] A protective cover is rotatably connected to the surface of the connecting cover. Multiple blades are fixedly connected to the inner wall of the protective cover. Multiple ventilation holes are opened at the lower end of the connecting cover. A connecting plate is fixedly connected to the lower end of the protective cover.

[0008] Multiple second cleaning brushes are fixedly connected to the lower end of the connecting plate, and multiple first cleaning brushes are fixedly connected to the upper end of the protective cover.

[0009] Preferably, the slag removal assembly further includes a piston, which is slidably connected inside the pneumatic pick housing, and a return spring is provided inside the pneumatic pick housing;

[0010] The pneumatic pick housing has an internal cavity, a first gas connection channel, and a second gas connection channel, with a small ball inside the cavity.

[0011] Preferably, the first gas connection channel and the second gas connection channel are respectively connected to the interior of the pneumatic pick housing, the interior of the exhaust port and the interior of the cavity, and the air inlet pipe is connected to the interior of the cavity.

[0012] Preferably, a pick drill bit is snapped into the inside of the pneumatic pick housing, and the pick drill bit can slide up and down inside the pneumatic pick housing;

[0013] The internal threaded connection of the pneumatic pick housing is a bolt, and the surface of the bolt is rotatably connected to a pick bit limiting plate. The pick bit limiting plate is slidably connected to the pneumatic pick housing, and the pick bit limiting plate and the pick bit are engaged.

[0014] Preferably, a pneumatic pick handle is fixedly connected to the upper end of the pneumatic pick housing.

[0015] Preferably, the bristles on the surfaces of the plurality of first cleaning brushes and the plurality of second cleaning brushes are in contact with the surface of the jackhammer housing.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. This automatic slag-cleaning mining pneumatic pick utilizes the exhaust gas generated by the piston impact to drive the blades to rotate, which in turn drives the first and second cleaning brushes to clean slag simultaneously, achieving integrated "crushing-cleaning" operation. Compared with traditional manual slag cleaning, which requires interruption of construction, it can increase the continuous operation time and the average daily crushing capacity of a single machine. The first cleaning brush, which is distributed in a ring at the top, removes dust particles; the second cleaning brush at the bottom quickly sweeps away the rock cuttings that accumulate around the pick through the centrifugal force of rotation, improving slag cleaning efficiency and enhancing the automation level of the device. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0019] Figure 1 This is a schematic diagram of an automatic slag-removing mining pneumatic pick according to the present invention;

[0020] Figure 2 This is a schematic diagram of the housing of the pneumatic pick of this utility model;

[0021] Figure 3 This is a schematic diagram of the piston of this utility model;

[0022] Figure 4 This is a schematic diagram of the blade of this utility model;

[0023] Figure 5 This is a schematic diagram of the vent hole of this utility model;

[0024] Figure 6 This is a schematic diagram of the pickaxe of this utility model;

[0025] Figure 7 This is an enlarged view of point A in the figure of this utility model.

[0026] Reference numerals: 1. Pneumatic pick housing; 2. Pneumatic pick handle; 3. Air inlet pipe; 4. Small ball; 5. Cavity; 6. First gas connection channel; 7. Second gas connection channel; 8. Exhaust port; 9. Bolt; 10. Pick barb limiting plate; 11. Pick barb; 12. Return spring; 13. Piston; 14. Connecting cover; 15. Protective cover; 16. Connecting plate; 17. First cleaning brush; 18. Second cleaning brush; 19. Blade; 20. Vent hole. Detailed Implementation

[0027] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0028] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0029] In the description of this utility model, terms such as greater than, less than, and exceeding are understood to exclude the stated number, while terms such as above, below, and within are understood to include the stated number. The use of terms like "first" and "second" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the quantity or sequence of the indicated technical features.

[0030] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0031] Please see Figure 1-7This utility model provides a technical solution: an automatic slag-removing mining pneumatic pick, including a pneumatic pick housing 1 and a slag-removing assembly. The slag-removing assembly is disposed on the pneumatic pick housing 1 and includes a connecting cover 14, which is fixedly connected to the surface of the pneumatic pick housing 1. An air inlet pipe 3 is fixedly connected to the surface of the pneumatic pick housing 1, and an exhaust hole 8 is opened on the surface of the pneumatic pick housing 1. A protective cover 15 is rotatably connected to the surface of the connecting cover 14. Multiple blades 19 are fixedly connected to the inner wall of the protective cover 15. Multiple ventilation holes 20 are opened at the lower end of the connecting cover 14. A connecting plate 16 is fixedly connected to the lower end of the protective cover 15. Multiple second cleaning brushes 18 are fixedly connected to the lower end of the connecting plate 16, and multiple first cleaning brushes 17 are fixedly connected to the upper end of the protective cover 15.

[0032] The slag removal assembly also includes a piston 13, which is slidably connected inside the pneumatic pick housing 1. A return spring 12 is provided inside the pneumatic pick housing 1. The pneumatic pick housing 1 has a cavity 5, a first gas connection channel 6, and a second gas connection channel 7. A small ball 4 is provided inside the cavity 5.

[0033] The first gas connection channel 6 and the second gas connection channel 7 are respectively connected to the interior of the pneumatic pick housing 1, the interior of the exhaust port 8, and the interior of the cavity 5, and the air inlet pipe 3 is connected to the interior of the cavity 5.

[0034] The inside of the pneumatic pick housing 1 is fitted with a pick bit 11, which can slide up and down inside the pneumatic pick housing 1. The inside of the pneumatic pick housing 1 is threaded with a bolt 9, and the surface of the bolt 9 is rotatably connected to a pick bit limiting plate 10. The pick bit limiting plate 10 is slidably connected to the pneumatic pick housing 1, and the pick bit limiting plate 10 and the pick bit 11 are engaged.

[0035] The upper end of the pneumatic pick housing 1 is fixedly connected to the pneumatic pick handle 2.

[0036] The bristles on the surfaces of the multiple first cleaning brushes 17 and the multiple second cleaning brushes 18 are in contact with the surface of the jackhammer housing 1.

[0037] When using the device, the air inlet pipe 3 is connected to an external compressed air source. High-pressure gas enters the cavity 5 through the air inlet pipe 3 and enters the interior of the jackhammer housing 1 through the first gas connection channel 6, pushing the piston 13 downward to impact the pick 11 and break the rock (at this time, the return spring 12 is compressed). When the piston 13 moves to the bottom, the piston 13 passes over the exhaust port 8, allowing the gas to be discharged from the exhaust port 8. During the process of the air being discharged from the exhaust port 8, the air is divided into two paths, entering the interior of the second gas connection channel 7 and the connecting cover 14 respectively. The air enters the cavity 5 through the second gas connection channel 7, causing the ball 4 to move upward inside the cavity 5 under the action of gravity and air pressure. The exhaust gas is discharged from the exhaust port 8 through the second gas connection channel 7. At the same time, the piston 13 returns to its original position under the elastic force of the return spring 12. Then the piston 13 re-seals the exhaust port 8, completing one impact cycle.

[0038] The pick 11 is fixed inside the pneumatic pick housing 1 by the pick 11 limiting plate 10 and the bolt 9. The bolt 9 can adjust the position of the pick 11 limiting plate 10, so that the pick 11 can only slide up and down inside the housing 1. During the crushing operation, the pick 11 moves up and down slightly under the reaction force of the rock. The snapping structure of the limiting plate 10 ensures its stability and avoids the decrease in impact efficiency due to loosening.

[0039] The exhaust gas discharged from the exhaust port 8 enters the interior of the connecting cover 14 through the vent 20 at the lower end of the connecting cover 14. The high-speed airflow impacts the blades 19 on the inner wall of the protective cover 15, driving the protective cover 15 to rotate around the connecting cover 14. The first cleaning brush 17 at the upper end and the second cleaning brush 18 at the lower end of the protective cover 15 rotate synchronously with it, respectively brushing the upper and lower parts of the jackhammer housing 1 in all directions.

[0040] The first cleaning brush 17 is arranged in a ring to remove attached slag and dust; the second cleaning brush 18 is concentrated around the pick 11 to focus on cleaning up rock chips that are splashed and accumulated during the crushing operation.

[0041] Furthermore, the exhaust gas generated by the piston impact drives the blade 19 to rotate, which in turn drives the first cleaning brush 17 and the second cleaning brush 18 to clean the slag simultaneously, realizing the integrated operation of "crushing-cleaning". Compared with the traditional manual slag cleaning which requires interruption of construction, the continuous operation time can be increased, the daily crushing capacity of a single machine can be increased, the first cleaning brush 17 distributed in a ring at the upper end removes dust particles, and the second cleaning brush 18 at the lower end quickly sweeps away the rock debris that accumulates around the pick 11 through the centrifugal force of rotation, thereby improving the slag cleaning efficiency and the automation level of the device.

[0042] Structural Description: Pneumatic pick housing 1: As the core load-bearing structure, it houses key components such as the piston and pick chisel. Exhaust holes 8 are opened on the surface and the slag removal assembly is fixed to ensure the overall strength and sealing of the machine.

[0043] The pick 11 is fixed by bolt 9 and pick limit plate 10, and the slag removal assembly is installed by connecting cover 14.

[0044] Pneumatic pick handle 2: Provides a gripping fulcrum and optimizes ergonomic design, making it easier for operators to control the direction and force of the pneumatic pick;

[0045] Inlet pipe 3: Connects to an external compressed air source (such as an air compressor) to introduce high-pressure gas into cavity 5, providing power for piston impact;

[0046] Piston 13: It reciprocates under the push of high pressure gas, impacting the pick 11 downward to break the rock, and expelling exhaust gas through the exhaust port 8 when it returns to its original position upward.

[0047] In conjunction with the return spring 12, it realizes the "impact-reset" cycle;

[0048] Return spring 12: Stores the kinetic energy of piston 13 when it moves downward, and releases the elastic force when it moves upward to assist in the return and reduce the consumption of compressed air;

[0049] Pickaxe 11: It directly contacts the rock and transmits the piston impact force to achieve the crushing operation. Different tip shapes (such as pointed chisels and flat chisels) can be changed according to the rock hardness.

[0050] The pickaxe limit plate 10 is fixed to the bolt 9, allowing for slight up and down movement to adapt to the rock reaction force and avoid rigid jamming;

[0051] Bolt 9 and pickaxe limiting plate 10: Bolt 9 adjusts the height of limiting plate 10 to accommodate pickaxes 11 of different lengths; limiting plate 10 restricts the lateral displacement of pickaxe through a snap-fit ​​structure to ensure accurate impact direction.

[0052] Cavity 5 and ball 4: Cavity 5 serves as the gas distribution hub, and ball 4 acts as a two-way valve.

[0053] When high-pressure gas enters, the ball 4 moves upward to open the first gas connection channel 6, driving the piston 13 downward;

[0054] When the exhaust gas is discharged, the small ball 4 falls and opens the second gas connection channel 7, guiding the airflow to drive the slag removal component;

[0055] First gas connection channel 6 and second gas connection channel 7:

[0056] Channel 6 connects cavity 5 to the inside of the pneumatic drill, transmitting high-pressure gas to drive the piston;

[0057] Channel 7 connects cavity 5 and exhaust port 8, guiding exhaust gas to drive slag removal and control the movement of ball 4;

[0058] Connecting cover 14 and protective cover 15: The connecting cover 14 is fixed to the housing 1 of the pneumatic pick and serves as a rotation support for the protective cover 15. The lower vent 20 guides the exhaust gas in.

[0059] The protective cover 15 is rotatably connected to the connecting cover 14 via a bearing, and the inner wall blades 19 are driven to rotate by the airflow, which in turn drives the brush to clean the slag.

[0060] Blade 19: It features a curved flow guide design to capture the kinetic energy of the exhaust gas discharged from the exhaust port 8 and convert the kinetic energy of the airflow into the rotational power of the protective cover 15.

[0061] First cleaning brush 17 and second cleaning brush 18: First cleaning brush 17 (circularly distributed at the upper end) removes dust;

[0062] The second cleaning brush 18 (concentrated at the lower end) targets the rock debris around the pickaxe and sweeps it off using centrifugal force;

[0063] Vent holes 20: evenly distributed at the lower end of the connecting cover 14, controlling the exhaust gas flow rate and velocity, ensuring that the blades 19 obtain stable driving force, and avoiding air pressure loss from affecting piston impact efficiency.

[0064] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A mining pneumatic pick with automatic slag removal, characterized in that: Includes the housing of the pneumatic pick (1); The slag removal assembly is set on the shell of the pneumatic pick (1). The slag removal assembly includes a connecting cover (14), which is fixedly connected to the surface of the pneumatic pick shell (1). An air inlet pipe (3) is fixedly connected to the surface of the pneumatic pick shell (1), and an exhaust hole (8) is opened on the surface of the pneumatic pick shell (1). A protective cover (15) is rotatably connected to the surface of the connecting cover (14). Multiple blades (19) are fixedly connected to the inner wall of the protective cover (15). Multiple ventilation holes (20) are opened at the lower end of the connecting cover (14). A connecting plate (16) is fixedly connected to the lower end of the protective cover (15). Multiple second cleaning brushes (18) are fixedly connected to the lower end of the connecting plate (16), and multiple first cleaning brushes (17) are fixedly connected to the upper end of the protective cover (15).

2. The mining pneumatic pick with automatic slag removal according to claim 1, characterized in that: The slag removal assembly also includes a piston (13), which is slidably connected inside the pneumatic pick housing (1), and a return spring (12) is provided inside the pneumatic pick housing (1); The pneumatic pick housing (1) has a cavity (5), a first gas connection channel (6), and a second gas connection channel (7) inside. A small ball (4) is placed inside the cavity (5).

3. The mining pneumatic pick with automatic slag removal according to claim 2, characterized in that: The first gas connection channel (6) and the second gas connection channel (7) are respectively connected to the inside of the jackhammer housing (1), the inside of the exhaust port (8) and the inside of the cavity (5), and the air inlet pipe (3) is connected to the inside of the cavity (5).

4. The mining pneumatic pick with automatic slag removal according to claim 1, characterized in that: The inside of the pneumatic pick housing (1) is fitted with a pick bar (11), which can slide up and down inside the pneumatic pick housing (1); The internal thread of the pneumatic pick housing (1) is connected to a bolt (9), and the surface of the bolt (9) is rotatably connected to a pick bit limiting plate (10). The pick bit limiting plate (10) is slidably connected to the pneumatic pick housing (1), and the pick bit limiting plate (10) and the pick bit (11) are engaged.

5. The mining pneumatic pick with automatic slag removal according to claim 1, characterized in that: The upper end of the jackhammer housing (1) is fixedly connected to the jackhammer handle (2).

6. The mining pneumatic pick with automatic slag removal according to claim 1, characterized in that: The bristles on the surfaces of the plurality of first cleaning brushes (17) and the plurality of second cleaning brushes (18) are in contact with the surface of the jackhammer housing (1).

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