CN111805759A

CN111805759A - Percussion drill bit

Info

Publication number: CN111805759A
Application number: CN202010667028.6A
Authority: CN
Inventors: 曹光辉; 张同庆
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-07-13
Filing date: 2020-07-13
Publication date: 2020-10-23

Abstract

The invention relates to the field of drill bits, in particular to a percussion drill bit which comprises a drill bit body, a rotating mechanism and a supporting framework, the rotating mechanism is arranged in an annular cavity formed in the drill bit body and comprises a rotating ring and a ball, the rotating ring is sleeved on the annular cavity, and the inner wall of the rotating ring is embedded with a plurality of balls which are uniformly distributed, each ball is in rolling contact with an annular cavity arranged on the drill bit body, the supporting framework is arranged on the rotating mechanism and comprises a connecting rod, a sliding sleeve, a sliding rod and a supporting ring, the connecting rods are respectively and fixedly arranged on two side walls of the rotating ring, the opposite back ends of the two connecting rods are respectively and fixedly provided with a sliding sleeve, and the sliding sleeves are internally inserted with sliding connected sliding rods, and one ends of the two sliding rods far away from the connecting rod are fixedly connected with the support ring. The impact drill provided by the invention has the advantages of reducing the vibration amplitude of punching and reducing dust flying.

Description

Percussion drill bit

Technical Field

The invention relates to the field of drill bits, in particular to a percussion drill bit.

Background

The drill bit is a tool used for drilling operation of the drilling machine, the drill bit is connected with the impacter during working, and the impacter drives the drill bit to rotate and simultaneously drives the drill bit to continuously impact rocks by means of the repeated action of the impact hammer on the drill bit, so that the aim of breaking the rocks is fulfilled. For rock, a wear resistant but brittle material, the impact of the drill bit combined with the rotation will greatly increase the drilling speed of the drill.

When wiring grooving is carried out on a building roof, continuous grooving is needed, because the electric drill is easy to cause the swing amplitude of the electric drill to be large when punching is carried out on the electric drill, dust flies in a mess easily, the dust drops off more easily in the drilling process of the hole at the top, so that a constructor is inconvenient to construct, the drill bit is easy to drill, the efficiency is low, and the working environment of a worker is poor. Therefore, it is necessary to provide a percussion drill bit to solve the above technical problems.

Disclosure of Invention

The present invention addresses the problems in the prior art by providing a percussive drill bit.

The technical scheme adopted by the invention for solving the technical problems is as follows: a percussion drill bit comprises a drill bit body, a rotating mechanism and a supporting framework, wherein the rotating mechanism is arranged in an annular cavity formed in the drill bit body, the rotating mechanism comprises a rotating ring and balls, the rotating ring is sleeved on the annular cavity, a plurality of uniformly distributed balls are embedded in the inner wall of the rotating ring, and each ball is in rolling contact with the annular cavity formed in the drill bit body; the supporting framework is installed on the rotating mechanism and comprises connecting rods, sliding sleeves, sliding rods and supporting rings, the two connecting rods are of the same specification and are fixedly installed on the two side walls of the rotating ring respectively, the two connecting rods are symmetrically distributed on the rotating ring, the sliding sleeves are fixedly installed at the back ends of the connecting rods, the sliding rods which are connected in a sliding mode are inserted into the sliding sleeves, the ends, far away from the connecting rods, of the sliding rods are fixedly connected with the supporting rings, and anti-sliding caps are fixedly installed at the other ends of the two sliding rods.

Preferably, a spring is connected in series to a connecting rod in the support framework, one end of the spring is fixedly connected with the upper surface of the support ring, and the other end of the spring is fixedly connected with the lower surface of the sliding sleeve.

Preferably, a plurality of powerful suckers which are uniformly distributed are fixedly installed at the bottom of the support ring in the support framework.

Preferably, a dustproof cloth cover is installed between the rotating ring on the rotating mechanism and the supporting ring on the supporting mechanism, one port of the dustproof cloth cover is fixedly sleeved on the rotating ring, and the other port of the dustproof cloth cover is fixedly embedded on the supporting ring.

Preferably, the dustproof cloth cover is in a conical organ shape, and the length of the sliding rod is equal to the distance from the top of the drill bit body to the annular cavity.

Compared with the related art, the impact drill provided by the invention has the following beneficial effects:

(1) according to the invention, the support ring is attached to the wall surface to be punched, and the support framework is arranged on the drill bit body through the rotating ring, so that the swing amplitude of the electric drill during punching is reduced, and the convenience of workers during punching is improved.

(2) According to the invention, dust discharged by the drill bit body enters the dustproof cloth cover during drilling, so that the condition of dust flying during drilling is avoided, and in the continuous drilling process, stones and dust falling from the top are collected through the dustproof cloth cover, so that the drilling efficiency can be accelerated.

Drawings

FIG. 1 is a schematic structural view of a preferred embodiment of a percussion drill bit according to the present invention;

FIG. 2 is an enlarged schematic view of the structure shown at A in FIG. 1;

fig. 3 is a schematic view of an installation structure of the dustproof cloth cover shown in fig. 1.

Reference numbers in the figures: 1. the drill bit comprises a drill bit body, a 2 annular cavity, a 3 rotating mechanism, a 31 rotating ring, a 32 rotating ball, a 33 rib plate, a 4 supporting framework, a 41 connecting rod, a 42 sliding sleeve, a 43 sliding rod, a 44 supporting ring, a 5 powerful suction cup, a 6 spring, a 7 dustproof cloth sleeve.

Detailed Description

The invention is further described with reference to the following figures and embodiments.

Referring to fig. 1, 2 and 3 in combination, an impact drill includes a drill body 1, a rotating mechanism 3 and a support structure 4, the rotating mechanism 3 is installed in an annular cavity 2 formed on the drill body 1, the rotating mechanism 3 includes a rotating ring 31 and balls 32, the rotating ring 31 is sleeved on the annular cavity 2, a plurality of balls 32 are embedded in the inner wall of the rotating ring 31, the balls 32 are in rolling contact with the annular cavity 2 formed on the drill body 1, the support structure 4 is installed on the rotating mechanism 3, the support structure 4 includes a connecting rod 41, a sliding sleeve 42, a sliding rod 43 and a support ring 44, the two connecting rods 41 with the same specification are respectively and fixedly installed on two side walls of the rotating ring 31, the two connecting rods 41 are symmetrically distributed on the rotating ring 31, the opposite ends of the two connecting rods 41 are respectively and fixedly installed with the sliding sleeve 42, and the sliding sleeve 42 is internally inserted with sliding connected sliding rods 43, one ends of the two sliding rods 43 far away from the connecting rod 41 are fixedly connected with the support ring 44, and the other ends of the two sliding rods 43 are fixedly provided with anti-skid caps. Install the electric drill with drill bit body 1 on, when utilizing the electric drill to punch wall, ground, through laminating support ring 44 on the wall that needs punch, because support framework 4 passes through swivel ring 31 and installs on drill bit body 1, reduced the swing range of electric drill when punching, improved the convenience when the staff punches.

Referring to fig. 1, a spring 6 is connected in series to a connecting rod 41 in the supporting framework 4, one end of the spring 6 is fixedly connected to an upper surface of a supporting ring 44, and the other end of the spring 6 is fixedly connected to a lower surface of a sliding sleeve 42, so that when the electric drill is pushed to drill a hole, a sliding rod 43 penetrates through the sliding sleeve 42 and compresses the spring 6, and after the hole is drilled, the drill bit body 1 is pulled out of the drilled hole, so that the supporting ring 44 is reset under the action of the spring 6.

Referring to fig. 1, a plurality of evenly distributed strong suction cups 5 are fixedly installed at the bottom of a support ring 44 in the support framework 4, and the support ring 44 is adsorbed on the wall surface of the hole to be punched by using the strong suction cups 5, so that the stability of the electric drill during punching is improved.

Referring to fig. 1 and 3, a dustproof cloth cover 7 is installed between the rotating ring 31 on the rotating mechanism 3 and the supporting ring 44 on the supporting framework 4, one port of the dustproof cloth cover 7 is fixedly sleeved on the rotating ring 31, the other port of the dustproof cloth cover 7 is fixedly embedded on the supporting ring 44, the dustproof cloth cover 7 is in a conical organ shape, dust discharged by the drill bit body 1 during punching enters the dustproof cloth cover 7, and the condition that the dust is raised in disorder during punching is avoided. The length of the sliding rod 43 is the same as the distance from the top of the drill bit body 1 to the annular cavity 2, so that the drill bit body 1 is not affected by the support framework 4 when drilling.

The working principle of the percussion drill provided by the invention is as follows: when the drill bit body 1 is used for punching, the drill bit body 1 is installed on an electric drill, the support ring 44 is attached to a wall surface needing punching, the bottom of the support ring 44 is fixedly provided with the plurality of strong suction cups 5, the support ring 44 is adsorbed on the wall surface needing punching by the strong suction cups 5, the stability of the electric drill during punching is improved, when the drill bit body 1 is used for rotary punching, the rotating ring 31 is rotatably connected with the annular cavity 2 formed by the drill bit body 1 by the balls 32, therefore, when the drill bit body 1 rotates, the support framework 4 is not influenced, because the support framework 4 is installed on the drill bit body 1 through the rotating ring 31, the swing amplitude of the electric drill during punching is reduced, the convenience of workers during punching is improved, when the electric drill bit body 1 is pushed to punch, the slide rod 43 passes through the sliding sleeve 42 and compresses the spring 6, and the drill bit body 1 is pulled out for drilling after the hole is, thereby the support ring 44 resets under the effect of spring 6, and the condition that the dust was raised in disorder when punching in the dust of drill bit body 1 entering into dustproof cloth cover 7, because dustproof cloth cover 7 is conical organ form, therefore drill bit body 1 bores into the wall body completely after, dustproof cloth cover 7 can carry out the elastic compression to can not influence the effect of punching of drill bit body 1, the dust of discharging in the dustproof cloth cover 7 after having beaten the hole can.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the embodiments and descriptions given above are only illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the claims. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The percussion drill is characterized by comprising a drill body (1), a rotating mechanism (3) and a supporting framework (4), wherein the rotating mechanism (3) is installed in an annular cavity (2) formed in the drill body (1), the rotating mechanism (3) comprises a rotating ring (31) and balls (32), the rotating ring (31) is sleeved on the annular cavity (2), the inner wall of the rotating ring (31) is embedded with a plurality of uniformly distributed balls (32), and each ball (32) is in rolling contact with the annular cavity (2) formed in the drill body (1); support framework (4) and install on slewing mechanism (3), support framework (4) are including connecting rod (41), slip cap (42), slide bar (43) and support ring (44), and two specifications are the same connecting rod (41) fixed mounting respectively is on the both sides wall of swivel becket (31), and two connecting rod (41) symmetric distribution are on swivel becket (31), two the equal fixed mounting in the back of the body end of connecting rod (41) has slip cap (42), and all inserts slide bar (43) that are equipped with sliding connection in slip cap (42), two the one end that connecting rod (41) were kept away from in slide bar (43) all with support ring (44) fixed connection, and the other end fixed mounting of two slide bars (43) has anti-skidding cap.

2. The percussion drill bit according to claim 1, characterized in that a spring (6) is connected in series to the connecting rod (41) in the support structure (4), one end of the spring (6) being fixedly connected to the upper surface of the support ring (44) and the other end of the spring (6) being fixedly connected to the lower surface of the sliding sleeve (42).

3. Percussion drill bit according to claim 1, characterized in that several evenly distributed power suction cups (5) are fixedly mounted at the bottom of the support ring (44) in the support structure (4).

4. The percussion drill bit according to claim 1, characterized in that a dust cloth cover (7) is mounted between the rotary ring (31) of the rotary mechanism (3) and the support ring (44) of the support structure (4), one port of the dust cloth cover (7) is fixedly sleeved on the rotary ring (31), and the other port of the dust cloth cover (7) is fixedly embedded on the support ring (44).

5. The percussion drill bit according to claim 4, characterized in that the dust cloth cover (7) is in the shape of a conical organ, and the length of the slide rod (43) is the same as the distance from the top of the bit body (1) to the annular chamber (2).