Down-the-hole hammer drill bit

Abstract

The utility model discloses a drill bit of a down-the-hole hammer, which belongs to the technical field of disassembly and assembly, and has the technical key points that the drill bit of the down-the-hole hammer comprises a fixed seat ring and further comprises a jacking adjusting screw rod, the jacking adjusting screw rod is movably connected with the fixed seat ring, and the side surface of the fixed seat ring is provided with a difference adjusting threaded hole; the jacking adjusting screw rod is movably connected with the difference adjusting threaded hole; the fixing device comprises a fixing seat ring, a lengthening rod connector and a differential adjusting threaded hole, the lengthening rod connector is arranged on one side of the fixing seat ring, the lengthening rod connector is fixedly connected with the fixing seat ring, the differential adjusting threaded hole is formed in the lengthening rod connector, and the application field of fixing, dismounting and mounting of the down-hole hammer impactor is achieved. And the irregular drill bit of the down-the-hole hammer can be effectively fixed and disassembled by the taper clamping seat through the adjustable jacking screw.

Description

Technical Field

[0001] The utility model relates to the technical field of disassembly and installation, in particular to a down-the-hole hammer drill bit. Background Art

[0002] Down-the-hole hammer bits are primarily used for rock drilling during mining blasting, deep foundation pile construction, and photovoltaic pile foundation construction. The impactor is connected to the down-the-hole hammer via a threaded buckle, with the piston inside the hammer providing the kinetic energy to impact the rock. During field construction, the impactor's buckle is subjected to vibrations, making it impossible to remove it with a wrench or pipe clamp. This requires hammering the impactor's threaded connection to loosen it and replace the down-the-hole hammer bit. This is inefficient and the hammer cannot be secured, causing the down-the-hole hammer to follow the hammer during the hammering process, further complicating the process of opening the threads. Large impactors and down-the-hole hammers are heavy and cannot be properly secured manually. Manufacturers can use specialized lathes for disassembly, but this results in significant waste of manpower and resources.

[0003] The irregular shape of the down-the-hole hammer, caused by the alloy bead embedded in it, made it impossible to fix or disassemble it using existing tooling. Manual hammering was extremely time-consuming and caused great trouble during field construction. Utility Model Content

[0004] In view of the deficiencies in the prior art, the embodiment of the present invention aims to provide a down-the-hole hammer drill bit to solve the problems in the above-mentioned background technology.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A down-the-hole hammer drill bit includes a fixed seat ring and:

[0007] A tightening adjustment screw rod, the tightening adjustment screw rod is movably connected to the fixed seat ring, a differential adjustment screw hole is provided on the side of the fixed seat ring, and the tightening adjustment screw rod is movably connected to the differential adjustment screw hole;

[0008] An extension rod joint is arranged on one side of the fixed seat ring, the extension rod joint is fixedly connected to the fixed seat ring, and a differential adjustment screw hole is arranged in the extension rod joint.

[0009] As a further solution of the present invention, a tapered clamping seat is provided on one side of the tightening adjustment screw rod, the tapered clamping seat is movably connected to the tightening adjustment screw rod, and the tapered clamping seat is provided in the fixed seat ring.

[0010] As a further solution of the present invention, the differential adjustment screw holes are provided in a plurality of groups, and the plurality of groups of differential adjustment screw holes are evenly distributed around the circumference of the fixed seat ring.

[0011] As a further solution of the present invention, four groups of tightening and adjusting screw rods are provided.

[0012] As a further solution of the present invention, the extension rod joint is fixedly connected to the fixed seat ring by welding.

[0013] In summary, the embodiments of the present invention have the following beneficial effects compared with the prior art:

[0014] 1. Fixed irregular drill bit of down-the-hole hammer, more convenient for clamping and disassembly;

[0015] 2. After clamping the down-the-hole hammer drill bit, the extended lever principle is used to greatly increase the disassembly efficiency;

[0016] 3. Disassembly after fixing greatly ensures personnel safety and solves the problem of down-the-hole hammer following;

[0017] 4. The design uses threaded force rods for water well drill pipes, which is more stable and more efficient in utilizing existing materials, thus reducing material waste.

[0018] In order to more clearly illustrate the structural features and effects of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of an embodiment of the utility model.

[0020] Figure markings: 1-fixed seat ring, 2-extension rod joint, 3-extension rod screw thread, 4-tightening adjustment screw rod, 5-differential adjustment screw thread hole, 6-taper clamping seat. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0022] The specific implementation of the present invention is described in detail below with reference to specific embodiments.

[0023] In one embodiment, a down-the-hole hammer drill bit, see Figure 1 , including a fixed seat ring 1, and also including:

[0024] A tightening adjustment screw rod 4 is movably connected to the fixed seat ring 1. A differential adjustment screw hole 5 is provided on the side of the fixed seat ring 1. The tightening adjustment screw rod 4 is movably connected to the differential adjustment screw hole 5;

[0025] An extension rod joint 2 is provided on one side of the fixed seat ring 1 , the extension rod joint 2 is fixedly connected to the fixed seat ring 1 , and a differential adjustment screw hole 5 is provided in the extension rod joint 2 .

[0026] For further information, see Figure 1 A tapered clamping seat 6 is provided on one side of the tightening adjustment screw rod 4 , and the tapered clamping seat 6 is movably connected to the tightening adjustment screw rod 4 , and the tapered clamping seat 6 is provided in the fixed seat ring 1 .

[0027] For further information, see Figure 1 The differential adjustment screw holes 5 are provided with multiple groups, and the multiple groups of differential adjustment screw holes 5 are evenly distributed around the circumference of the fixed seat ring 1.

[0028] For further information, see Figure 1 The tightening adjustment screw rods 4 are provided with four groups.

[0029] For further information, see Figure 1 The extension rod joint 2 is fixedly connected to the fixed seat ring 1 by welding.

[0030] In this embodiment, the fixed seat ring 1 is connected to the extension rod joint 2 by welding, and the fixed seat ring 1 is provided with a plurality of differential adjustment threaded holes 5. The tightening adjustment screw 4 is connected to the fixed seat ring 1 through the differential adjustment threaded holes 5, and one end of the tightening adjustment screw 4 is a tapered clamping seat 6.

[0031] The middle section of the extended threaded connector 2 is a cube for securing the drill pipe wrench to the longitudinal position and ensuring stability. The tapered thread is used to increase the fixed lever force when connected to the water well drill pipe.

[0032] The invention solves the problem of fixing, disassembling and installing the impactor of a down-the-hole hammer. The tapered clamping seat can be adjusted to effectively fix the irregular drill bit of the down-the-hole hammer by adjusting the tightening screw.

[0033] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A down-the-hole hammer drill bit, comprising a fixed seat ring, characterized in that: Also includes: A tightening adjustment screw rod, the tightening adjustment screw rod is movably connected to the fixed seat ring, a differential adjustment screw hole is provided on the side of the fixed seat ring, and the tightening adjustment screw rod is movably connected to the differential adjustment screw hole; An extension rod joint is arranged on one side of the fixed seat ring, the extension rod joint is fixedly connected to the fixed seat ring, and a differential adjustment screw hole is arranged in the extension rod joint.

2. The down-the-hole hammer drill bit according to claim 1, characterized in that: A tapered clamping seat is provided on one side of the tightening and adjusting screw rod. The tapered clamping seat is movably connected to the tightening and adjusting screw rod, and the tapered clamping seat is provided in the fixed seat ring.

3. The down-the-hole hammer drill bit according to claim 2, characterized in that: The differential adjustment screw holes are provided in a plurality of groups, and the plurality of differential adjustment screw holes are evenly distributed around the circumference of the fixed seat ring.

4. The down-the-hole hammer drill bit according to claim 3, characterized in that: The tightening adjustment screw rods are provided in four groups.

5. The down-the-hole hammer drill bit according to claim 4, characterized in that: The extension rod joint is fixedly connected to the fixed seat ring by welding.

Images