Disclosure of Invention
The technical problems to be solved by the utility model are as follows: the problem that the existing mining drill bit is easy to damage after encountering a hard stone layer is solved.
In order to solve the technical problems, the utility model provides the following technical scheme:
a coal mining drill bit comprising a drill bit capable of rotary reciprocation.
The advantages are that: when the coal mining drill bit works, besides rotary feeding in normal working, the drill bit can simultaneously and rapidly reciprocate, the rotation speed of the coal mining drill bit can be greatly reduced, the reciprocating motion of the drill bit can increase the cutting times of ores, the collection rate of ore coal is improved, and the problem that the drill bit is easy to damage after encountering a hard stone layer is avoided.
Preferably, the coal mining drill bit further comprises a base, a rotary supporting seat and a reciprocating driving unit;
the rotary supporting seat is rotatably arranged on the base, the reciprocating driving unit is arranged in the rotary supporting seat, and the drill bit is rotatably arranged on the rotary supporting seat and connected with the reciprocating driving unit.
Preferably, the rotary supporting seat is of a hollow round platform structure, and the reciprocating driving unit and the drill bit are both arranged on the side wall and the top wall of the rotary supporting seat.
Preferably, a plurality of the reciprocating driving units and the drill bits are provided, and the plurality of the reciprocating driving units and the drill bits are in one-to-one correspondence.
Preferably, a plurality of the drill bits are uniformly arranged on the rotary support base.
Preferably, the drill bit is an alloy drill bit.
Compared with the prior art, the utility model has the beneficial effects that: when the coal mining drill bit works, besides rotary feeding in normal working, the drill bit can simultaneously and rapidly reciprocate, the rotation speed of the coal mining drill bit can be greatly reduced, the reciprocating motion of the drill bit can increase the cutting times of ores, the collection rate of ore coal is improved, and the problem that the drill bit is easy to damage after encountering a hard stone layer is avoided.
Detailed Description
In order to facilitate the understanding of the technical scheme of the present utility model by those skilled in the art, the technical scheme of the present utility model will be further described with reference to the accompanying drawings.
The terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
Referring to fig. 1, the present embodiment discloses a coal mining drill bit, which includes a base 1, a rotary support 2, a reciprocating drive unit 3, and a drill bit 4.
The rotary supporting seat 2 is rotatably arranged on the base 1, the reciprocating driving unit 3 is arranged in the rotary supporting seat 2, and the drill bit 4 is rotatably arranged on the rotary supporting seat 2 and connected with the reciprocating driving unit 3; the drill bit 4 is capable of rotary reciprocation.
The base 1 of the utility model can be connected with a coal mining machine when in use, and plays a role in connecting and fixing the drill bit 4. The rotary support seat 2 can rotate on the base 1 when working, and plays a role of connecting with the unidirectional rotary drill bit 4. The drill bit 4 is rotatably mounted on the rotary support base 2, and the drill bit 4 is connected with the reciprocating drive unit 3 and is driven by the reciprocating drive unit 3 to reciprocate. When the reciprocating driving unit 3 drives the drill bit 4 to work, the drill bit 4 can repeatedly and reciprocally rotate for a small distance. The reciprocating drive unit 3 can also control the speed of the drill bit 4, and the speed is adjusted according to the actual overall condition of ore mining.
The base 1 of the coal mining drill bit 4 is connected with a coal mining machine, the rotary supporting seat 2 rotates to drive the drill bit 4 on the rotary supporting seat to rotate around the axis of the rotary supporting seat for rotary cutting, then the reciprocating driving unit 3 is started to drive the drill bit 4 to perform reciprocating cutting, so that not only can the rotary ore be cut and stripped, but also the ore in the opposite direction can be extruded and cut, so that the coal mine is larger in separation particles, clusters are separated, and the collection rate of ore and coal is improved. Meanwhile, the coal mining drill bit 4 of the embodiment can simultaneously have rotary cutting and repeated cutting capabilities, so that the rotary speed of the drill bit 4 is greatly reduced, the reciprocating motion of the drill bit 4 increases the cutting times of ores, and the problem that the drill bit 4 is easy to damage after encountering a hard stone layer is avoided.
The coal mining drill bit 4 has reciprocating motion, is similar to a gypsum saw operation principle, has lower and even no harm to softer substances such as human bodies, and protects operators.
In this embodiment, the rotary support base 2 has a hollow truncated cone structure, and the reciprocating driving unit 3 and the drill bit 4 are both mounted on the side wall and the top wall of the rotary support base 2. The plurality of reciprocating drive units 3 and the drill 4 are provided in plurality, and the plurality of reciprocating drive units 3 and the drill 4 are in one-to-one correspondence. The plurality of drill bits 4 are uniformly arranged on the rotary support base 2.
In some embodiments, the drill bit 4 is an alloy drill bit. The alloy drill bit has high hardness and good high-temperature and wear resistance, and is suitable for coal mining.
The working principle of this embodiment is as follows:
when the coal mining drill bit 4 works, the rotary supporting seat 2 rotates to drive the drill bit 4 on the rotary supporting seat to rotate around the axis of the rotary supporting seat to cut, meanwhile, the reciprocating driving unit 3 drives the drill bit 4 to cut in a reciprocating mode, the rotary integral coal mining drill bit 4 not only cuts and peels off the rotary ore, but also can squeeze and cut the rotary ore in the opposite direction between the adjacent drill bits 4, so that coal mine falling particles are larger, clusters fall off, and the coal mining drill bit has a high ore collection rate.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
The above-described embodiments merely represent embodiments of the utility model, the scope of the utility model is not limited to the above-described embodiments, and it is obvious to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model.