Screw drilling tool convenient to repair and maintain

Abstract

The utility model relates to the technical field of screw drilling tools, in particular to a screw drilling tool convenient to maintain, which comprises a base, the bottom of the base is movably connected with a thread milling cutter through a clamping mechanism, the top of the thread milling cutter is fixedly connected with a fixed disc, and the bottom of the base is fixedly connected with a support through four fixed rods. The clamping mechanism comprises a transverse sliding groove, a transverse sliding block, a movable rod, an arc-shaped clamping plate, a rotating disc, a connecting rod and a motor. The number of the transverse sliding grooves, the number of the transverse sliding blocks, the number of the movable rods and the number of the arc-shaped clamping plates are four, the transverse sliding grooves are formed in the bottom of the base, the four transverse sliding blocks are slidably connected to the interiors of the four transverse sliding grooves correspondingly, the motor is started to drive the rotary disc to rotate, and the rotary disc rotates to drive the four arc-shaped clamping plates to move towards the fixed disc at the same time through the connecting rods. And the fixed disc is fixed, so that the thread milling cutter can be quickly replaced.

Description

Technical Field

[0001] The utility model relates to the technical field of screw drill tools, in particular to a screw drill tool which is easy to repair and maintain. Background Art

[0002] The screw drill is a commonly used downhole power drill. During the drilling process, the screw drill needs to first drill out a wider well frame, then reduce the diameter of the borehole after the well frame is laid, and then lay the well pipe in the well frame.

[0003] The patent with the patent announcement number CN207660535U discloses a screw drilling tool, including a universal shaft and a transmission shaft, wherein the universal shaft includes a live hinge, a connecting rod, a one-piece water cap and a ball-column type hinged structure; the transmission shaft includes a transmission shaft body, a transmission shaft body and an internal anti-drop structure. The utility model uses a ball column as a bearing component, and compared with a spherical ball, the bearing area is greatly increased, the wear resistance and bearing capacity are greatly improved, and the torque transmission is more stable and efficient; the utility model reduces a live hinge joint, reduces the processing cost, optimizes and removes a threaded connection, and reduces the safety risk point; the utility model solves the problem of internal structure failure and shedding such as the breakage and shedding of the internal threaded structure by setting an internal anti-drop structure inside the transmission shaft, prolongs the product life and drilling safety and improves drilling efficiency; the utility model is provided with an anti-collision device, and its material is made of high-strength alloy steel higher than the transmission shaft body to improve the impact resistance here, thereby increasing the life of the transmission shaft and improving drilling efficiency. The above patent has the following disadvantages: changing the diameter of the drill hole requires changing the specifications of the screw drill, and the entire screw drill needs to be disassembled for replacement. The entire screw drill is heavy and bulky, which is inconvenient to operate and reduces the efficiency of drilling work. In view of this, we propose a screw drill that is easy to repair and maintain. Utility Model Content

[0004] The utility model aims to provide a screw drill which is easy to repair and maintain, so as to solve the problems raised in the above-mentioned background technology.

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

[0006] A screw drill that is easy to repair and maintain, comprising a base, the bottom of the base is provided with a thread milling cutter that is movably connected through a clamping mechanism, the top of the thread milling cutter is fixedly connected with a fixed disc, and the bottom of the base is fixedly connected with a bracket through four fixing rods;

[0007] The clamping mechanism includes a horizontal slide groove, a horizontal slide block, a movable rod, an arc clamping plate, a rotating disk, a connecting rod, and a motor;

[0008] The number of the transverse sliding groove, transverse slider, movable rod and arc-shaped clamping plate is four. The transverse sliding groove is opened at the bottom of the base. The four transverse sliders are respectively slidably connected to the inside of the four transverse sliding grooves. The four movable rods are respectively fixedly connected to the bottom of the four transverse sliders. The four arc-shaped clamping plates are respectively fixedly connected to the opposite ends of the four movable rods. The fixed disc is clamped and fixed from four directions by the four arc-shaped clamping plates.

[0009] Preferably, the motor is fixedly connected to the top of the base, the bottom output end of the motor passes through the upper and lower ends of the base, and is fixedly connected to the top of the turntable, and the turntable is hinged to the two movable rods through connecting rods.

[0010] Preferably, a shock absorbing mechanism is arranged on the top of the base, and the shock absorbing mechanism includes a side plate, and the side plate is fixedly connected to the top of the base, and a shock absorbing airbag is fixedly connected to the top of the base, and the side plate is arranged to provide support force for the damper.

[0011] Preferably, a damper is fixedly connected to one side of the side panel close to the shock-absorbing airbag, a gasket is fixedly connected to one end of the damper close to the shock-absorbing airbag, a spring is provided on the outer sleeve of the damper, and both ends of the spring are respectively fixedly connected to the gasket and the side panel, so that the damper is provided to provide supporting force to the gasket.

[0012] Preferably, a top plate is provided on the top of the base, a vertical slide rail is fixedly connected to the bottom of the top plate, a vertical slider is slidably connected inside the vertical slide rail, and the movement of the vertical slider is limited by providing the vertical slide rail.

[0013] Preferably, four screw holes are provided on the top of the top plate, and the vertical sliding block is fixedly connected to a side of the side plate away from the shock-absorbing airbag.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. Turn on the motor to drive the turntable to rotate. The rotation of the turntable drives the four arc-shaped clamping plates to move toward the fixed disc at the same time through the connecting rod, and fix the fixed disc, so that the thread milling cutter can be quickly replaced.

[0016] 2. When the thread milling cutter is processing the workpiece, vibration will be generated. At this time, the vibration generated by the thread milling cutter in the process of processing the workpiece is damped by the mutual cooperation of the shock-absorbing airbag and the damper, thereby improving the stability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0018] Figure 2It is a bottom cross-sectional view of the utility model;

[0019] Figure 3 It is a top schematic diagram of the utility model;

[0020] Figure 4 It is a top sectional view of the utility model.

[0021] In the figure: 1, base; 2, clamping mechanism; 3, thread milling cutter; 4, top plate; 5, shock absorbing mechanism; 31, fixed disc; 32, bracket; 21, horizontal slide groove; 22, horizontal slider; 23, movable rod; 24, arc clamping plate; 25, turntable; 26, connecting rod; 27, motor; 41, screw hole; 42, vertical slide rail; 43, vertical slider; 51, side plate; 52, damper; 53, spring; 54, gasket; 55, shock absorbing airbag. DETAILED DESCRIPTION

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

[0023] Embodiment 1

[0024] like Figure 1-4 As shown, a screw drill that is easy to repair and maintain includes a base 1, a thread milling cutter 3 is movably connected to the bottom of the base 1 through a clamping mechanism 2, and a fixed disc 31 is fixedly connected to the top of the thread milling cutter 3. The bottom of the base 1 is fixedly connected to a bracket 32 ​​through four fixed rods; the clamping mechanism 2 includes a horizontal slide 21, a horizontal slider 22, a movable rod 23, an arc-shaped clamping plate 24, a rotating disk 25, a connecting rod 26, and a motor 27; the number of the horizontal slide 21, the horizontal slider 22, the movable rod 23, and the arc-shaped clamping plate 24 is four, and the horizontal slide 21 is opened on the base 1 At the bottom, four horizontal sliders 22 are slidably connected to the inside of four horizontal slide grooves 21, respectively; four movable rods 23 are fixedly connected to the bottom of the four horizontal sliders 22, respectively; four arc-shaped clamping plates 24 are fixedly connected to the opposite ends of the four movable rods 23; the fixed disc 31 is clamped and fixed from four directions by the four arc-shaped clamping plates 24; the motor 27 is fixedly connected to the top of the base 1, and the bottom output end of the motor 27 passes through the upper and lower ends of the base 1, and is fixedly connected to the top of the turntable 25, and the turntable 25 is hinged to the two movable rods 23 through the connecting rod 26.

[0025] In this embodiment, when the thread milling cutter 3 needs to be installed on the device, the fixed disc 31 is first placed at the bottom of the bracket 32, and then the motor 27 is turned on to drive the turntable 25 to rotate. The rotation of the turntable 25 drives the four movable rods 23 to move toward the fixed disc 31 through the connecting rod 26. The four movable rods 23 move toward the fixed disc 31, driving the four arc-shaped clamping plates 24 to move toward the fixed disc 31 at the same time, and fix the fixed disc 31.

[0026] Embodiment 2

[0027] like Figure 1-4 As shown, a shock absorbing mechanism 5 is arranged on the top of the base 1, and the shock absorbing mechanism 5 includes a side plate 51, and the side plate 51 is fixedly connected to the top of the base 1, and a shock absorbing airbag 55 is fixedly connected to the top of the base 1; the side plate 51 is arranged to provide support force for the damper 52; the damper 52 is fixedly connected to one side of the side plate 51 close to the shock absorbing airbag 55, and the gasket 54 is fixedly connected to one end of the damper 52 close to the shock absorbing airbag 55, and the outer sleeve of the damper 52 is provided with a spring 53, and the spring 53 is provided on the outer sleeve of the damper 52. The two ends of 53 are fixedly connected to the gasket 54 and the side plate 51 respectively; the damper 52 is provided to provide support force for the gasket 54; a top plate 4 is provided on the top of the base 1, and a vertical slide rail 42 is fixedly connected to the bottom of the top plate 4, and a vertical slider 43 is slidably connected inside the vertical slide rail 42; the movement of the vertical slider 43 is limited by providing the vertical slide rail 42; four screw holes 41 are opened on the top of the top plate 4, and the vertical slider 43 is fixedly connected to the side of the side plate 51 away from the shock-absorbing airbag 55.

[0028] In this embodiment, vibration is generated when the thread milling cutter 3 processes the workpiece. At this time, the vibration generated when the thread milling cutter 3 processes the workpiece is damped by the cooperation between the damping airbag 55 and the damper 52 .

[0029] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A screw drill that is easy to repair and maintain, characterized in that: include: A base (1), wherein the bottom of the base (1) is provided with a thread milling cutter (3) movably connected via a clamping mechanism (2), the top of the thread milling cutter (3) is fixedly connected to a fixed disc (31), and the bottom of the base (1) is fixedly connected to a bracket (32) via four fixing rods; The clamping mechanism (2) comprises a transverse sliding groove (21), a transverse sliding block (22), a movable rod (23), an arc-shaped clamping plate (24), a rotating disk (25), a connecting rod (26), and a motor (27); The number of the transverse sliding groove (21), the transverse sliding block (22), the movable rod (23), and the arc-shaped clamping plate (24) is four. The transverse sliding groove (21) is opened at the bottom of the base (1). The four transverse sliding blocks (22) are respectively slidably connected inside the four transverse sliding grooves (21). The four movable rods (23) are respectively fixedly connected to the bottoms of the four transverse sliding blocks (22). The four arc-shaped clamping plates (24) are respectively fixedly connected to the opposite ends of the four movable rods (23).

2. The screw drill tool that is easy to repair and maintain according to claim 1 is characterized in that: The motor (27) is fixedly connected to the top of the base (1); the bottom output end of the motor (27) passes through the upper and lower ends of the base (1) and is fixedly connected to the top of the turntable (25); the turntable (25) is hinged to the two movable rods (23) respectively through connecting rods (26).

3. The screw drill tool that is easy to repair and maintain according to claim 2, characterized in that: A shock absorbing mechanism (5) is arranged on the top of the base (1), and the shock absorbing mechanism (5) comprises a side plate (51), and the side plate (51) is fixedly connected to the top of the base (1), and a shock absorbing airbag (55) is fixedly connected to the top of the base (1).

4. The screw drill tool that is easy to repair and maintain according to claim 3 is characterized in that: A damper (52) is fixedly connected to one side of the side plate (51) close to the shock absorbing airbag (55), a gasket (54) is fixedly connected to one end of the damper (52) close to the shock absorbing airbag (55), a spring (53) is sleeved on the outside of the damper (52), and two ends of the spring (53) are respectively fixedly connected to the gasket (54) and the side plate (51).

5. The screw drill tool that is easy to repair and maintain according to claim 4 is characterized in that: A top plate (4) is arranged on the top of the base (1); a vertical slide rail (42) is fixedly connected to the bottom of the top plate (4); and a vertical sliding block (43) is slidably connected inside the vertical slide rail (42).

6. The screw drill tool that is easy to repair and maintain according to claim 5, characterized in that: Four screw holes (41) are provided on the top of the top plate (4), and the vertical sliding block (43) is fixedly connected to a side of the side plate (51) away from the shock-absorbing airbag (55).

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