A drill bit cleaning mechanism for a rock drill

Abstract

This utility model specifically discloses a drill bit cleaning mechanism for an anchor drilling rig, including a bracket, a support seat slidably mounted on the bracket, and a housing containing a motor on the support seat. The output end of the motor is connected to a rotating shaft, and the end of the rotating shaft away from the housing is connected to a drill bit. A cleaning mechanism is provided on one side of the bracket, comprising a linear drive unit and a cleaning unit. The linear drive unit is mounted on one side of the bracket, and the cleaning unit is mounted on the linear drive unit. The linear drive unit drives the cleaning unit to reciprocate along the drill bit's axis to clean the drill bit. This utility model achieves automatic cleaning without disassembling the drill bit, improving cleaning efficiency and making cleaning convenient.

Description

Technical Field

[0001] This utility model relates to the field of drill bit cleaning technology, specifically to a drill bit cleaning mechanism for an anchor drilling machine. Background Technology

[0002] Anchor drilling rigs, also known as anchoring drilling rigs in some places, are drilling tools used in anchor support work in coal mine roadways, tunnels, water conservancy projects, etc. They have outstanding advantages in improving support effect, reducing support cost, speeding up roadway construction, reducing auxiliary transportation volume, reducing labor intensity, and improving roadway cross-sectional utilization.

[0003] After the anchor drilling rig has been working, a lot of mud and other debris will stick to its drill bit. At this time, the drill bit needs to be cleaned to ensure the working efficiency of the drill bit. Currently, the drill bit is usually removed and cleaned manually. This cleaning method is not very efficient and requires disassembling the drill bit, which is quite troublesome. Utility Model Content

[0004] The purpose of this utility model is to provide a drill bit cleaning mechanism for anchor drilling machines, which can achieve automatic cleaning without disassembling the drill bit, thereby improving cleaning efficiency and making cleaning convenient without disassembling the drill bit.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following solution:

[0006] A drill bit cleaning mechanism for an anchor drilling rig includes a bracket, a support seat slidably mounted on the bracket, a housing for a motor mounted on the support seat, a rotating shaft connected to the output end of the motor, and a drill bit connected to the end of the rotating shaft away from the housing. A cleaning mechanism is provided on one side of the bracket, the cleaning mechanism including a linear drive unit and a cleaning unit. The linear drive unit is mounted on one side of the bracket, and the cleaning unit is mounted on the linear drive unit. The linear drive unit drives the cleaning unit to reciprocate along the drill bit axis to clean the drill bit.

[0007] In the prior art, the support is a conventional component in existing anchor drilling rigs. The support is H-shaped, with a support seat sliding on it. A housing is mounted on the support seat, and a motor is installed inside the housing. The output end of the motor is connected to a rotating shaft, which is connected to a drill bit. Generally, one end of the support seat is equipped with a hydraulic cylinder for driving the support seat to move along the length of the support. The motor drives the drill bit to rotate, and the hydraulic cylinder drives the support seat to move towards the drilling side, thereby realizing the drilling operation.

[0008] This solution features a cleaning mechanism on one side of the support. The cleaning mechanism does not obstruct the movement of the support base. It includes a linear drive unit and a cleaning unit, with the cleaning unit mounted on the linear drive unit. The linear drive unit drives the cleaning unit to reciprocate along the drill bit axis. After drilling is completed, the support base slides to completely withdraw the drill bit from the borehole until it is within the cleaning range of the cleaning unit. At this point, the motor drives the drill bit to continue rotating, but the rotation speed should not be too fast. The cleaning unit contacts the drill bit, and the linear drive unit drives the cleaning unit to reciprocate along the drill bit axis. With the rotation of the drill bit, the cleaning unit can clean the drill bit surface from all angles, thus achieving automatic cleaning without disassembling the drill bit, improving cleaning efficiency and making cleaning simpler and more convenient.

[0009] Optionally, the linear drive unit includes a drive component, a transmission component, a guide component, and a sliding seat. The drive component is disposed on one side of the frame, the transmission component is disposed on the frame and connected to the sliding seat, the drive component is connected to the transmission component to drive the sliding seat to move, the guide component is disposed on the bracket, the sliding seat is slidably connected to the guide component and located on one side of the drill bit, and the cleaning unit is installed on one side of the sliding seat.

[0010] Optionally, the drive mechanism includes a drive motor and a mounting plate. The mounting plate is connected to the bracket, the drive motor is mounted on the mounting plate, and the output end of the drive motor passes through the mounting plate and is connected to the transmission component.

[0011] Optionally, the transmission component includes a lead screw and support plates located at both ends of the lead screw. The lead screw is rotatably connected to the two support plates. A sliding seat passes through the lead screw. The surface of the lead screw is provided with an external thread, and the sliding seat is provided with an internal thread adapted to the external thread. One end of the lead screw passes through a support plate and is connected to the output end of a drive motor. The drive motor drives the lead screw to rotate. The rotation of the lead screw drives the sliding seat to move along the axis of the lead screw. The movement of the sliding seat along the axis of the lead screw drives the cleaning unit to clean the drill bit.

[0012] Optionally, the guide includes a guide rod connected to both sides of the sliding seat, the guide rod is fixedly connected between two support plates, the guide rod is parallel to the axis of the lead screw, and the sliding seat is provided with a through hole for the guide rod to pass through.

[0013] Optionally, the cleaning unit includes a cleaning brush, a spray pipe, and a nozzle. The cleaning brush is detachably connected to the sliding seat. The working end of the cleaning brush is in contact with the drill bit. The cleaning brush is perpendicular to the axis of the drill bit. The nozzle is located above the cleaning brush. The inlet end of the nozzle is connected to the spray pipe, and the spray pipe is connected to an external water source.

[0014] Optionally, one end of the cleaning brush is provided with a threaded post, and the sliding seat is provided with a threaded hole on the side opposite to the drill bit that is adapted to the threaded post, and the threaded post is threadedly connected to the threaded hole.

[0015] Optionally, the spray pipe is L-shaped, with one end closed and the other end open. The closed end is connected to the top surface of the sliding seat, and the open end is connected to the spray head.

[0016] Optionally, the spray pipe is connected to an external water source via a hose.

[0017] Optionally, the spray pipe is equipped with a valve, and the inlet of the valve is connected to the hose.

[0018] The beneficial effects of this utility model are:

[0019] After drilling is completed, the support slides to completely withdraw the drill bit from the borehole until it is within the cleaning range of the cleaning unit. At this point, the motor drives the drill bit to continue rotating, but the rotation speed should not be too fast. The cleaning unit contacts the drill bit, and the linear drive unit drives the cleaning unit to move back and forth along the drill bit axis. With the rotation of the drill bit, the cleaning unit can clean the surface of the drill bit from all directions, thus achieving automatic cleaning without disassembling the drill bit, improving cleaning efficiency, and making cleaning simpler and more convenient. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a top view of the structure of this utility model;

[0022] Figure 3 This is a side view of the cleaning brush in contact with the drill bit.

[0023] Figure 4 This is a structural diagram of the plug.

[0024] Reference numerals: 1-Bracket, 2-Support base, 3-Dustproof net, 4-Sliding seat, 5-Hose, 6-Spray pipe, 7-Valve, 8-Screw rod, 9-Support plate, 10-Protective cover, 11-Drive motor, 12-Mounting plate, 13-Drill bit, 14-Shaft, 15-Chassis, 16-Motor, 17-Hydraulic cylinder, 18-Cleaning brush, 19-Guide rod, 20-Spray head, 21-Threaded column. Detailed Implementation

[0025] The present invention will be further described in detail below with reference to the embodiments and accompanying drawings, but the implementation of the present invention is not limited thereto.

[0026] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "longitudinal", "lateral", "horizontal", "inner", "outer", "front", "rear", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. 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.

[0027] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set up," "have," "install," "connect," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] A drill bit 13 cleaning mechanism for an anchor drilling rig includes a bracket 1, a support seat 2 slidably mounted on the bracket 1, a housing 15 on the support seat 2 housing a motor 16, an output end of the motor 16 connected to a rotating shaft 14, and a drill bit 13 connected to the end of the rotating shaft 14 away from the housing 15. A cleaning mechanism is provided on one side of the bracket 1. The cleaning mechanism includes a linear drive unit and a cleaning unit. The linear drive unit is mounted on one side of the bracket 1, and the cleaning unit is mounted on the linear drive unit. The linear drive unit drives the cleaning unit to reciprocate along the axis of the drill bit 13 to clean the drill bit 13.

[0029] The bracket 1 is a standard component in existing anchor drilling rigs. The bracket 1 is H-shaped, with its two long sides actually serving as two sliding rails. The support base 2 is slidably connected to the two long sides of the bracket 1 on both sides; this is also a standard configuration in anchor drilling rigs. A housing 15 is mounted on the support base 2, and a dustproof net 3 is installed on the housing 15. A motor 16 is installed inside the housing 15, and the motor 16 is bolted to the top surface of the support base 2. The housing 15 is fixed to the top surface of the support base 2 with screws and is located outside the motor 16. The output end of the motor 16 is connected to a rotating shaft 14, which in turn connects to a drill bit 13. Figure 1 As shown, in the prior art, one end of the support base 2 is provided with a hydraulic cylinder 17 for driving the support base 2 to move along the length direction of the bracket 1. The motor 16 drives the drill bit 13 to rotate, and the hydraulic cylinder 17 drives the support base 2 to move towards the drilling side, thereby realizing the drilling operation.

[0030] In this embodiment, as Figure 1 and Figure 2As shown, a cleaning mechanism is provided on one side of the bracket 1. The cleaning mechanism does not hinder the movement of the support base 2. The cleaning mechanism includes a linear drive unit and a cleaning unit. The cleaning unit is installed on the linear drive unit. The linear drive unit can drive the cleaning unit to move back and forth along the axis of the drill bit 13. When the drilling operation is completed, the support base 2 slides to allow the drill bit 13 to completely withdraw from the drill hole until the drill bit 13 is within the cleaning range of the cleaning unit. At this time, the motor 16 drives the drill bit 13 to continue rotating. The rotation speed should not be too fast. The cleaning unit contacts the drill bit 13. The linear drive unit drives the cleaning unit to move back and forth along the axis of the drill bit 13. With the rotation of the drill bit 13, the cleaning unit can clean the surface of the drill bit 13 in all directions. This achieves automatic cleaning without disassembling the drill bit 13, improving cleaning efficiency. Cleaning is simpler and more convenient without disassembling the drill bit 13.

[0031] Furthermore, the linear drive unit includes a drive component, a transmission component, a guide component, and a sliding seat 4. The drive component is disposed on one side of the frame, the transmission component is disposed on the frame and connected to the sliding seat 4, and the drive component is connected to the transmission component to drive the sliding seat 4 to move. The guide component is disposed on the bracket 1, and the sliding seat 4 is slidably connected to the guide component and located on one side of the drill bit 13. The cleaning unit is installed on one side of the sliding seat 4.

[0032] Furthermore, the drive mechanism includes a drive motor 11 and a mounting plate 12. The mounting plate 12 is connected to the bracket 1, the drive motor 11 is mounted on the mounting plate 12, and the output end of the drive motor 11 passes through the mounting plate 12 and is connected to the transmission component.

[0033] Furthermore, the transmission component includes a lead screw 8 and support plates 9 located at both ends of the lead screw 8. The lead screw 8 is rotatably connected to the two support plates 9. A sliding seat 4 passes through the lead screw 8. The surface of the lead screw 8 is provided with an external thread, and the sliding seat 4 is provided with an internal thread adapted to the external thread. One end of the lead screw 8 passes through a support plate 9 and is connected to the output end of the drive motor 11. The drive motor 11 drives the lead screw 8 to rotate. The rotation of the lead screw 8 drives the sliding seat 4 to move along the axis of the lead screw 8. The movement of the sliding seat 4 along the axis of the lead screw 8 drives the cleaning part to clean the drill bit 13.

[0034] Furthermore, the guide includes a guide rod 19 connected to both sides of the sliding seat 4. The guide rod 19 is fixedly connected between the two support plates 9. The guide rod 19 is parallel to the axis of the lead screw 8. The sliding seat 4 is provided with a through hole for the guide rod 19 to pass through.

[0035] Specifically, the mounting plate 12 is bolted to one side of the bracket 1. The mounting plate 12 is located at the right end of the bracket 1. The right end of the bracket 1 can be appropriately extended so that fixing the mounting plate 12 will not affect the movement range of the support seat 2. The drive motor 11 is mounted on the mounting plate 12. The output end of the drive motor 11 passes through the mounting plate 12 and is connected to the lead screw 8. The drive motor 11 drives the lead screw 8 to rotate so that the sliding seat 4 can move along the axis of the lead screw 8. The cleaning part is set on the side of the sliding seat 4. The sliding seat 4 moves back and forth along the axis of the lead screw 8 to clean the drill bit 13. The moving distance of the sliding seat 4 is greater than the length of the drill bit 13, so that the cleaning range of the cleaning part can completely cover the drill bit 13.

[0036] It should be noted that, for the purpose of protecting the lead screw 8, a special protective sleeve can be fitted over the outside of the lead screw 8. The protective sleeve is retractable and can be purchased directly. If the protective sleeve is not installed, the lead screw 8 needs to be cleaned and maintained after each drilling operation. At the same time, to prevent water from splashing into the drive motor 11 during cleaning, a protective cover 10 is installed on the outside of the drive motor 11. A heat dissipation hole can be opened on the side of the protective cover 10 away from the drill bit 13, and a filter screen is installed at the heat dissipation hole.

[0037] Furthermore, the cleaning unit includes a cleaning brush 18, a spray pipe 6, and a nozzle 20. The cleaning brush 18 is detachably connected to the sliding seat 4. The working end of the cleaning brush 18 is in contact with the drill bit 13. The axis of the cleaning brush 18 is perpendicular to that of the drill bit 13. The nozzle 20 is located above the cleaning brush 18. The inlet end of the nozzle 20 is connected to the spray pipe 6. The spray pipe 6 is connected to an external water source.

[0038] Furthermore, one end of the cleaning brush 18 is provided with a threaded post 21, and the sliding seat 4 is provided with a threaded hole on the side opposite to the drill bit 13 that is adapted to the threaded post 21, and the threaded post 21 is threadedly connected to the threaded hole.

[0039] Specifically, such as Figure 3 As shown, one end of the cleaning brush 18 is provided with a threaded post 21. The threaded post 21 is connected to the sliding seat 4 through a matching threaded hole. The threaded connection facilitates installation and disassembly. When the cleaning brush 18 needs to be cleaned, it is directly installed on the side of the sliding seat 4. After cleaning, it can be disassembled and stored. After each cleaning, the surface of the threaded post 21 needs to be cleaned to avoid affecting the installation. A matching plug 22 can be provided at the threaded hole to prevent impurities from entering the interior. Figure 4As shown, a rubber plug 22 is typically used, and the plug 22 is threaded to the threaded hole. Alternatively, a rubber sleeve can be directly fitted onto the threaded post 21 to form protection, eliminating the need for frequent cleaning. After the cleaning brush 18 is connected to the sliding seat 4, it is in a state perpendicular to the axis of the drill bit 13. The working end of the cleaning brush 18 needs to be in contact with the drill bit 13. The cleaning effect is better when combined with the water sprayed by the nozzle 20. With the rotation of the drill bit 13 itself and the reciprocating linear movement of the cleaning brush 18, the entire drill bit 13 is cleaned.

[0040] Furthermore, the spray pipe 6 is L-shaped, with one end closed and the other end open. The closed end is connected to the top surface of the sliding seat 4, and the open end is connected to the nozzle 20.

[0041] Specifically, the spray pipe 6 is made of rigid material, and the closed end of the spray pipe 6 is fixed to the sliding seat 4. The nozzle 20 sprays water toward the cleaning brush 18. The nozzle 20 is positioned so as not to affect the drilling of the drill bit 13. As the drill bit 13 rotates, it continuously contacts the cleaning brush 18, and the nozzle 20 sprays water toward the cleaning brush 18, thereby cleaning the drill bit 13 in the circumferential direction. Then, the drive motor 11 drives the sliding seat 4 to move along the axis of the lead screw 8, which in turn moves the cleaning brush 18 in the circumferential direction of the lead screw 8, thereby cleaning the drill bit 13 in the length direction. The axis of the drill bit 13 is parallel to the axis of the lead screw 8.

[0042] Furthermore, the spray pipe 6 is connected to an external water source via a hose 5.

[0043] Specifically, the hose 5 has a certain margin and can move with the sliding seat 4 to prevent the hose 5 from falling off the connection with the sprinkler pipe 6 and the external water source. The water source can be a water tank or tap water. In order to improve the spray force of the nozzle 20, a water pump can be installed in the water line between the water source and the nozzle 20 to increase the water pressure.

[0044] Furthermore, the spray pipe 6 is equipped with a valve 7, the inlet of which is connected to the hose 5.

[0045] Specifically, valve 7 is a commercially available standard valve, such as model DN5016. Valve 7 can control the amount of water entering the spray pipe 6 and the opening and closing of the water path. A locking buckle can be installed at the connection between the hose 5 and valve 7 to prevent the hose 5 from falling off during use. After cleaning, the locking buckle can be removed to take off the hose 5. The locking buckle is also an existing product.

[0046] The working principle of this invention is as follows: After drilling is completed, the support base 2 slides to the right, bringing out the drill bit 13 until it is within the cleaning range of the cleaning brush 18. The support base 2 then stops sliding, and the motor 16 drives the drill bit 13 to rotate. The rotation speed should not be too high. Then, the drive motor 11 drives the lead screw 8 to rotate. The rotation of the lead screw 8 causes the cleaning brush 18 to move along its axis. Simultaneously, the nozzle 20 moves with the cleaning brush 18 and sprays water onto it. The rotation of the drill bit 13 causes the cleaning brush 18 to clean the circumference of the drill bit 13. The movement of the cleaning brush 18 along the axis of the lead screw 8 allows for cleaning of the drill bit 13 along its length, thus completing the overall cleaning of the drill bit 13. Cleaning does not require disassembling the drill bit 13, making cleaning simple and highly efficient.

[0047] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Any simple modifications, equivalent substitutions, and improvements made to the above embodiments based on the technical essence of the present utility model and within the spirit and principles of the present utility model shall still fall within the protection scope of the present utility model.

Claims

1. A drill bit cleaning mechanism of a roof bolter, comprising a support (1), a support seat (2) is slidably arranged on the support (1), a machine box (15) provided with a motor (16) is arranged on the support seat (2), an output end of the motor (16) is connected with a rotating shaft (14), and a drill bit (13) is connected to one end of the rotating shaft (14) away from the machine box (15), characterized in that, The bracket (1) is provided with a cleaning mechanism on one side. The cleaning mechanism includes a linear drive unit and a cleaning unit. The linear drive unit is installed on one side of the bracket (1), and the cleaning unit is installed on the linear drive unit. The linear drive unit drives the cleaning unit to reciprocate along the axis of the drill bit (13) to clean the drill bit (13).

2. A drill bit cleaning mechanism for a rod drill as claimed in claim 1, characterized in that, The linear drive unit includes a drive component, a transmission component, a guide component, and a sliding seat (4). The drive component is located on one side of the frame, the transmission component is located on the frame and connected to the sliding seat (4), the drive component is connected to the transmission component to drive the sliding seat (4) to move, the guide component is located on the bracket (1), the sliding seat (4) is slidably connected to the guide component and located on one side of the drill bit (13), and the cleaning unit is installed on one side of the sliding seat (4).

3. A drill bit cleaning mechanism for a rod drill as claimed in claim 2, c h a r a c t e r i s e d in that The driving component includes a drive motor (11) and a mounting plate (12). The mounting plate (12) is connected to the bracket (1), and the drive motor (11) is mounted on the mounting plate (12). The output end of the drive motor (11) passes through the mounting plate (12) and is connected to the transmission component.

4. A drill bit cleaning mechanism for a rod drill as claimed in claim 2, characterised in that, The transmission component includes a lead screw (8) and support plates (9) located at both ends of the lead screw (8). The lead screw (8) is rotatably connected to the two support plates (9). A sliding seat (4) is installed on the lead screw (8). The surface of the lead screw (8) is provided with an external thread. The sliding seat (4) is provided with an internal thread that matches the external thread. One end of the lead screw (8) passes through a support plate (9) and is connected to the output end of the drive motor (11). The drive motor (11) drives the lead screw (8) to rotate. The rotation of the lead screw (8) drives the sliding seat (4) to move along the axis of the lead screw (8). The movement of the sliding seat (4) along the axis of the lead screw (8) drives the cleaning part to clean the drill bit (13).

5. A drill bit cleaning mechanism for a rod drill as claimed in claim 2, characterised in that, The guide includes a guide rod (19) connected to both sides of the sliding seat (4). The guide rod (19) is fixedly connected between two support plates (9). The guide rod (19) is parallel to the axis of the lead screw (8). The sliding seat (4) is provided with a through hole for the guide rod (19) to pass through.

6. A drill bit cleaning mechanism for a rod drill as claimed in claim 4, characterised in that, The cleaning unit includes a cleaning brush (18), a spray pipe (6), and a nozzle (20). The cleaning brush (18) is detachably connected to the sliding seat (4). The working end of the cleaning brush (18) is in contact with the drill bit (13). The axis of the cleaning brush (18) is perpendicular to that of the drill bit (13). The nozzle (20) is located above the cleaning brush (18). The inlet end of the nozzle (20) is connected to the spray pipe (6). The spray pipe (6) is connected to an external water source.

7. A drill bit cleaning mechanism for a rod drill as claimed in claim 6, characterised in that, The cleaning brush (18) has a threaded post (21) at one end, and the sliding seat (4) has a threaded hole on the side opposite to the drill bit (13) that is adapted to the threaded post (21). The threaded post (21) is threadedly connected to the threaded hole.

8. A drill bit cleaning mechanism for a rod drill as claimed in claim 6, characterised in that, The spray pipe (6) is L-shaped, with one end closed and the other end open. The closed end is connected to the top surface of the sliding seat (4), and the open end is connected to the nozzle (20).

9. A drill bit cleaning mechanism for a rod drill as claimed in claim 8, characterised in that, The spray pipe (6) is connected to an external water source via a hose (5).

10. A drill bit cleaning mechanism for a rod drill as claimed in claim 9, characterised in that, The spray pipe (6) is equipped with a valve (7), and the inlet of the valve (7) is connected to the hose (5).

Images