Transmission mechanism of drilling equipment

Abstract

The utility model belongs to the technical field of drilling equipment, particularly relates to a transmission mechanism of drilling equipment, and aims to solve the problems that an existing drill bit is directly driven by a motor and is not provided with any transmission structure, and the motor can be damaged when the drill bit is in a locked state due to large resistance. A lifting motor is arranged at the top of the workbench, a top plate is installed on an output shaft of the lifting motor, an adjusting mechanism is arranged at the bottom of the top plate, a rectangular machining shell is connected to the adjusting mechanism, a motor is arranged in the rectangular machining shell, a transmission acceleration structure is connected to the motor, and a rotating shaft is connected to the transmission acceleration structure. The rotating shaft is rotationally mounted on the inner wall of the top of the rectangular machining shell. The drilling machine is simple in structure, the rotating speed of the drill bit can be increased to machine a workpiece, the situation that the output shaft of the motor is in a working and locking state when the drill bit cannot rotate is prevented, and the motor can be protected.

Description

Technical Field

[0001] The utility model relates to the technical field of drilling equipment, in particular to a transmission mechanism of drilling equipment. Background Art

[0002] Drilling equipment refers to drilling machines, which are machines and equipment that use a tool that is harder and sharper than the target object to leave a cylindrical hole or hole on the target object by means of rotary cutting or rotary extrusion. It is also called a drilling machine, a punching machine, a drilling machine, a through-hole machine, etc. The desired effect is achieved by drilling holes in precision parts. After searching, the patent document CN108637323B provides a drilling device, including a motor, a drill bit, a connector and a medium supplier; the drill bit is provided with a plurality of groups of channels, the channels include slots and medium channels, and the medium channels are spirally arranged in the drill bit; the connector is a hollow annular column, including an inner wall and an outer wall, the connector is movably sleeved on the slot of the drill bit, the inner wall is provided with an annular slot corresponding to the number of channels, the outer wall is provided with a channel opening, and the channel opening is connected to the annular slot; the medium supplier includes a number of medium bins equal to the number of channels, the medium bins are connected to the channel openings through valves, and by providing a channel drill bit, cooperating with a connector and a medium supplier, it is possible to provide medium to the channel of the drill bit according to the current required working conditions during operation to meet different processing requirements and improve the drilling effect.

[0003] The existing drill bit is directly driven by a motor without any transmission structure. When the drill bit encounters a large resistance and forms a locked state, it will cause damage to the motor. Utility Model Content

[0004] The utility model aims to solve the problem that the existing drill bit is directly driven by a motor without any transmission structure, and when the drill bit encounters a large resistance and forms a locking state, the motor will be damaged, and a transmission mechanism for drilling equipment is proposed.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A transmission mechanism of drilling equipment includes a workbench, a lifting motor is arranged on the top of the workbench, a top plate is installed on the output shaft of the lifting motor, an adjustment mechanism is arranged on the bottom of the top plate, the adjustment mechanism is connected to a rectangular processing shell, a motor is arranged in the rectangular processing shell, a transmission speed-up structure is connected to the motor, a rotating shaft is connected to the transmission speed-up structure, the rotating shaft is rotatably installed on the top inner wall of the rectangular processing shell, a transmission protection structure is connected to the rotating shaft, the transmission protection structure is connected to a power shaft, the power shaft is rotatably installed on the rectangular processing shell, a drill bit connector is installed at the bottom end of the power shaft, and a drill bit is installed on the drill bit connector.

[0007] Preferably, the front side of the rectangular processing shell is open and a shell cover is rotatably mounted thereon, and a lock is provided between the shell cover and the rectangular processing shell; the interior of the rectangular processing shell can be maintained by opening the shell cover.

[0008] Preferably, two clamping cylinders are arranged on the top of the workbench, and clamping blocks are arranged on the two clamping cylinders; the two clamping cylinders can clamp and fix the workpiece.

[0009] Preferably, the adjustment mechanism includes an electric push rod, which is installed at the bottom of the top plate, and the output shaft of the electric push rod is fixedly connected to the rectangular processing shell. A guide groove is opened at the bottom of the top plate, and a guide block is slidably installed in the guide groove, and the guide block is fixedly installed on the top of the rectangular processing shell; the electric push rod drives the rectangular processing shell to move, and the rectangular processing shell drives the drill bit to move to adjust the drilling position.

[0010] Preferably, the transmission speed-up structure includes a first gear and a second gear, the first gear is installed on the output shaft of the motor, the second gear is sleeved on the outside of the rotating shaft, the diameter of the first gear is larger than the diameter of the second gear, and the first gear is meshed with the second gear; since the diameter of the first gear is larger than the diameter of the second gear, the rotation speed of the second gear is increased, the second gear drives the rotating shaft to rotate, the rotating shaft drives the power shaft to rotate through the first cylinder and the second cylinder, and the power shaft drives the drill bit to rotate through the drill bit connecting piece, thereby increasing the rotation speed of the drill bit to process the workpiece.

[0011] Preferably, the transmission protection structure includes a first cylinder and a second cylinder, the first cylinder is fixedly installed on the bottom end of the rotating shaft, and the second cylinder is fixedly installed on the top end of the power shaft. A plurality of elastic grooves are provided at the bottom of the first cylinder, and elastic levers are slidably installed in the plurality of elastic grooves. The bottom end of the elastic lever is semicircular, and a spring is installed between the elastic lever and the elastic groove. A plurality of arc-shaped matching grooves are provided on the top of the second cylinder, and the elastic lever is matched with the corresponding arc-shaped matching grooves. When the drill bit encounters greater resistance and cannot rotate, the elastic lever is squeezed to compress the spring and leaves from one arc-shaped matching groove and continues to enter the next arc-shaped matching groove, thereby preventing the output shaft of the motor from being in a working and locked state when the drill bit cannot rotate, thereby protecting the motor.

[0012] In the utility model, the transmission mechanism of the drilling equipment has the following beneficial effects:

[0013] In this solution, the electric push rod drives the rectangular processing shell to move, and the rectangular processing shell drives the drill bit to move and adjust the drilling position. The motor drives the first gear to rotate, and the first gear drives the second gear to rotate. Since the diameter of the first gear is greater than the diameter of the second gear, the rotation speed of the second gear is increased, and the second gear drives the rotating shaft to rotate. The rotating shaft drives the power shaft to rotate through the first cylinder and the second cylinder. The power shaft drives the drill bit to rotate through the drill bit connector, thereby increasing the rotation speed of the drill bit to process the workpiece;

[0014] In this solution, when the drill bit encounters a large resistance and cannot rotate, the elastic lever is squeezed to compress the spring and leaves from one arc-shaped matching groove and continues to enter the next arc-shaped matching groove, thereby preventing the output shaft of the motor from being in a working and locked state when the drill bit cannot rotate, thereby protecting the motor;

[0015] The utility model has a simple structure, can increase the rotation speed of the drill bit to process the workpiece, prevents the output shaft of the motor from being in a working and locked state when the drill bit cannot rotate, and can protect the motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of a transmission mechanism of a drilling device proposed by the utility model;

[0017] Figure 2 This is a structural schematic diagram of part A of a transmission mechanism of a drilling device proposed by the utility model;

[0018] Figure 3 This is a three-dimensional structural schematic diagram of a rectangular processing shell and a shell cover proposed by the utility model;

[0019] Figure 4 This is a schematic structural diagram of the first cylinder and the elastic lever proposed in the utility model.

[0020] In the figure: 1. workbench; 2. clamping cylinder; 3. lifting motor; 4. top plate; 5. electric push rod; 6. rectangular processing shell; 7. guide groove; 8. guide block; 9. motor; 10. first gear; 11. rotating shaft; 12. second gear; 13. first cylinder; 14. spring; 15. elastic groove; 16. elastic lever; 17. power shaft; 18. second cylinder; 19. arc matching groove; 20. drill bit connector; 21. drill bit; 22. air inlet; 23. fan; 24. exhaust pipe; 25. shell cover. DETAILED DESCRIPTION

[0021] The technical solution of this embodiment will be clearly and completely described below in conjunction with the drawings in this embodiment. Obviously, the described embodiment is only a part of this embodiment, rather than all of the embodiments.

[0022] Embodiment 1

[0023] Reference Figure 1-Figure 4 A transmission mechanism of a drilling equipment comprises a workbench 1, two clamping cylinders 2 are arranged on the top of the workbench 1, and clamping blocks are arranged on the two clamping cylinders 2; the two clamping cylinders 2 can clamp and fix the workpiece, a lifting motor 3 is arranged on the top of the workbench 1, a top plate 4 is installed on the output shaft of the lifting motor 3, an adjusting mechanism is arranged at the bottom of the top plate 4, a rectangular processing shell 6 is connected to the adjusting mechanism, a motor 9 is arranged in the rectangular processing shell 6, a transmission speed-up structure is connected to the motor 9, a rotating shaft 11 is connected to the transmission speed-up structure, the rotating shaft 11 is rotatably installed on the top inner wall of the rectangular processing shell 6, a transmission protection structure is connected to the rotating shaft 11, a power shaft 17 is connected to the transmission protection structure, the power shaft 17 is rotatably installed on the rectangular processing shell 6, a drill bit connector 20 is installed at the bottom end of the power shaft 17, and a drill bit 21 is installed on the drill bit connector 20.

[0024] In this embodiment, the front side of the rectangular processing shell 6 is open and a shell cover 25 is rotatably installed, and a lock is provided between the shell cover 25 and the rectangular processing shell 6; the interior of the rectangular processing shell 6 can be maintained by opening the shell cover 25.

[0025] In this embodiment, the adjustment mechanism includes an electric push rod 5, which is installed at the bottom of the top plate 4. The output shaft of the electric push rod 5 is fixedly connected to the rectangular processing shell 6. A guide groove 7 is provided at the bottom of the top plate 4. A guide block 8 is slidably installed in the guide groove 7. The guide block 8 is fixedly installed on the top of the rectangular processing shell 6; the electric push rod 5 drives the rectangular processing shell 6 to move, and the rectangular processing shell 6 drives the drill bit 21 to move to adjust the drilling position.

[0026] In this embodiment, the transmission speed-up structure includes a first gear 10 and a second gear 12. The first gear 10 is installed on the output shaft of the motor 9, and the second gear 12 is sleeved on the outer side of the rotating shaft 11. The diameter of the first gear 10 is greater than the diameter of the second gear 12, and the first gear 10 is meshed with the second gear 12. Since the diameter of the first gear 10 is greater than the diameter of the second gear 12, the rotation speed of the second gear 12 is increased, and the second gear 12 drives the rotating shaft 11 to rotate. The rotating shaft 11 drives the power shaft 17 to rotate through the first cylinder 13 and the second cylinder 18. The power shaft 17 drives the drill bit 21 to rotate through the drill bit connector 20, thereby increasing the rotation speed of the drill bit 21 to process the workpiece.

[0027] In this embodiment, the transmission protection structure includes a first cylinder 13 and a second cylinder 18. The first cylinder 13 is fixedly installed on the bottom end of the rotating shaft 11, and the second cylinder 18 is fixedly installed on the top end of the power shaft 17. A plurality of elastic grooves 15 are provided at the bottom of the first cylinder 13, and elastic levers 16 are slidably installed in the plurality of elastic grooves 15. The bottom end of the elastic lever 16 is semicircular, and a spring 14 is installed between the elastic lever 16 and the elastic groove 15. A plurality of arc-shaped matching grooves 19 are provided at the top of the second cylinder 18, and the elastic lever 16 is adapted to the corresponding arc-shaped matching grooves 19. When the drill bit 21 is unable to rotate due to greater resistance, the elastic lever 16 is squeezed to compress the spring 14 and leaves from one arc-shaped matching groove 19 and continues to enter the next arc-shaped matching groove 19, thereby preventing the output shaft of the motor 9 from being in a working and locked state when the drill bit 21 is unable to rotate, thereby protecting the motor 9.

[0028] Working principle: When in use, turn on the power supply and PLC controller, the PLC controller can perform electrical control, which is the prior art and will not be described in detail here. Place the workpiece on the top of the workbench 1, clamp and fix it through two clamping cylinders 2, the electric push rod 5 drives the rectangular processing shell 6 to move, the rectangular processing shell 6 drives the drill 21 to move and adjust the drilling position, the motor 9 drives the first gear 10 to rotate, the first gear 10 drives the second gear 12 to rotate, because the diameter of the first gear 10 is greater than the diameter of the second gear 12, the rotation speed of the second gear 12 is increased, the second gear 12 drives the rotating shaft 11 to rotate, and the rotating shaft 11 passes through the first cylinder 1 3. The second cylinder 18 drives the power shaft 17 to rotate, and the power shaft 17 drives the drill bit 21 to rotate through the drill bit connector 20, thereby increasing the rotation speed of the drill bit 21 to process the workpiece. The first cylinder 13 drives the second cylinder 18 to rotate through the connection between multiple elastic levers 16 and multiple arc-shaped matching grooves 19. When the drill bit 21 encounters greater resistance and cannot rotate, the elastic lever 16 is squeezed and compressed by the spring 14 and leaves from one arc-shaped matching groove 19 and continues to enter the next arc-shaped matching groove 19, thereby preventing the output shaft of the motor 9 from being in a working and locked state when the drill bit 21 cannot rotate. The motor 9 can be protected, and the processing can be stopped after the work is completed.

[0029] Embodiment 2

[0030] The difference between Example 2 and Example 1 is that: a plurality of air inlet holes 22 are provided on the top of the rectangular processing shell 6, a plurality of air blowing pipes 24 are provided on the bottom of the rectangular processing shell 6, and the plurality of air outlet pipes 24 are all inclined and facing the position of the drill bit 21. A fan 23 is installed on the outside of the rotating shaft 11. When the rotating shaft 11 rotates, the fan 23 is driven to rotate. The outside air enters the rectangular processing shell 6 through the air inlet holes 22, which can cool the internal transmission structure. Air is blown through the plurality of air blowing pipes 24. Due to the position facing the drill bit 21, the processed debris can be blown away from the workpiece. This application includes all structural shapes, sizes and materials of Example 1. In order to meet specific usage conditions, they can all be selected and adjusted. The accompanying drawings are all schematic structural diagrams, and the specific actual sizes can be appropriately adjusted.

[0031] The above is only a preferred specific implementation of this embodiment, but the protection scope of this embodiment is not limited to this. Any technician familiar with the technical field can make equivalent replacements or changes based on the technical solution and utility model concept of this embodiment within the technical scope disclosed in this embodiment, which should be covered by the protection scope of this embodiment.

Claims

1. A transmission mechanism of a drilling device, comprising a workbench (1), a lifting motor (3) is arranged on the top of the workbench (1), a top plate (4) is installed on the output shaft of the lifting motor (3), and the characteristics are: The bottom of the top plate (4) is provided with an adjustment mechanism, the adjustment mechanism is connected to a rectangular processing shell (6), a motor (9) is arranged inside the rectangular processing shell (6), the motor (9) is connected to a transmission speed-up structure, the transmission speed-up structure is connected to a rotating shaft (11), the rotating shaft (11) is rotatably mounted on the top inner wall of the rectangular processing shell (6), the rotating shaft (11) is connected to a transmission protection structure, the transmission protection structure is connected to a power shaft (17), the power shaft (17) is rotatably mounted on the rectangular processing shell (6), a drill bit connector (20) is mounted at the bottom end of the power shaft (17), and a drill bit (21) is mounted on the drill bit connector (20).

2. The transmission mechanism of the drilling equipment according to claim 1, characterized in that: Two clamping cylinders (2) are arranged on the top of the workbench (1), and clamping blocks are arranged on the two clamping cylinders (2).

3. The transmission mechanism of the drilling equipment according to claim 1, characterized in that: The adjustment mechanism comprises an electric push rod (5), which is mounted on the bottom of the top plate (4), and an output shaft of the electric push rod (5) is fixedly connected to a rectangular processing shell (6).

4. The transmission mechanism of the drilling equipment according to claim 1, characterized in that: A guide groove (7) is provided at the bottom of the top plate (4), a guide block (8) is slidably installed in the guide groove (7), and the guide block (8) is fixedly installed on the top of the rectangular processing shell (6).

5. The transmission mechanism of the drilling equipment according to claim 1, characterized in that: The transmission speed-up structure comprises a first gear (10) and a second gear (12), wherein the first gear (10) is mounted on the output shaft of the motor (9), and the second gear (12) is sleeved on the outside of the rotating shaft (11), the diameter of the first gear (10) is greater than the diameter of the second gear (12), and the first gear (10) and the second gear (12) are meshed.

6. The transmission mechanism of the drilling equipment according to claim 1, characterized in that: The transmission protection structure comprises a first cylinder (13) and a second cylinder (18), wherein the first cylinder (13) is fixedly mounted on the bottom end of the rotating shaft (11), and the second cylinder (18) is fixedly mounted on the top end of the power shaft (17). A plurality of elastic grooves (15) are provided at the bottom of the first cylinder (13), and elastic levers (16) are slidably mounted in the plurality of elastic grooves (15). The bottom end of the elastic lever (16) is semicircular, and a spring (14) is mounted between the elastic lever (16) and the elastic groove (15). A plurality of arc-shaped matching grooves (19) are provided at the top of the second cylinder (18), and the elastic levers (16) are matched with the corresponding arc-shaped matching grooves (19).

7. The transmission mechanism of the drilling equipment according to claim 1, characterized in that: The front side of the rectangular processing shell (6) is open and has a shell cover (25) rotatably mounted thereon, and a lock buckle is provided between the shell cover (25) and the rectangular processing shell (6).

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