Internal oil supplementing type hard alloy drill bit

Abstract

The utility model discloses an internal oil recharging type hard alloy drill bit which comprises an alloy drill bit body, an oil recharging unit is arranged on the inner side of the alloy drill bit body, the oil recharging unit comprises a mounting groove, the mounting groove is formed in the inner side of the alloy drill bit body, an oil tank is fixedly connected to the inner side of the mounting groove, and the inner side of the oil tank is fixedly connected with an oil pump. Oil supplementing holes are formed in the bottom of the oil tank and the inner side of the alloy drill bit body, a net plate is arranged on the inner side of the oil tank, an air bag is arranged between the lower side of the net plate and the bottom of the oil tank, and a fixing pipe is fixedly connected to the lower side of the net plate. By arranging the oil tank, the net plate, the air bag, the fixing pipe, the blocking piece, the oil supplementing hole, the conveying pipe, the fixing cavity and the second concentration pipe, oil supplementing can be conveniently conducted on the alloy drill bit body, the temperature of the drill bit is reduced, high-speed gas is injected into the second concentration pipe, scrap iron in the oil supplementing hole can be conveniently cleaned, and oil supplementing of the drill bit is prevented from being affected.

Description

Technical Field

[0001] The utility model relates to the field of alloy drill bits, in particular to an internal oil-filling type hard alloy drill bit. Background Art

[0002] Carbide drill bits are a commonly used tool in drilling projects and are known for their high hardness and wear resistance.

[0003] After searching, the application number is "202223025161.5", which provides an internal oil-replenishing carbide drill bit. By transferring heat when the drill bit is working, the air inside the airbag expands, pushing the mesh plate to drive the vertical rod to separate from the upper end of the oil guide hole, so that the lubricating oil in the oil tank can flow out from the oil guide hole, and automatically replenish oil to the lower end of the carbide drill bit body; when the lubrication friction at the lower end is reduced and the temperature is lowered, the gas inside the airbag returns to its original state, the mesh plate drives the vertical rod to fall back, and the lower end of the vertical rod blocks the oil guide hole again, realizing automatic control of oil replenishment.

[0004] The above-mentioned heat increase causes the airbag control vertical rod to separate from the oil guide hole, which is convenient for replenishing oil to the high-temperature alloy drill bit. However, since the oil guide hole is extended to the lower end of the drill bit, when the alloy drill bit processes the workpiece, debris is generated. These debris can easily enter the oil guide hole directly, causing the oil guide hole to be blocked, thereby reducing the oil replenishment effect. Utility Model Content

[0005] In order to overcome the disadvantage that in the prior art, when oil is replenished to the drill bit through an oil guide hole, iron filings are easily accumulated inside the oil guide hole, thereby reducing the oil replenishment effect, one of the purposes of the utility model is to provide an internal oil replenishment type cemented carbide drill bit.

[0006] One of the purposes of the utility model is achieved by adopting the following technical solution: an internal oil replenishment type cemented carbide drill, comprising an alloy drill body: an oil replenishment unit is arranged inside the alloy drill body;

[0007] The oil filling unit comprises an installation groove, which is arranged on the inner side of the alloy drill bit main body, and the inner side of the installation groove is fixedly connected with an oil tank, and the bottom of the oil tank and the inner side of the alloy drill bit main body are both provided with oil filling holes, and a mesh plate is arranged on the inner side of the oil tank, and an air bag is arranged between the lower side of the mesh plate and the bottom of the oil tank, and the lower side of the mesh plate is fixedly connected with a fixing pipe, the lower end of the fixing pipe is fixedly connected with a baffle, and the lower side of the baffle is provided with an air outlet hole, the upper end of the fixing pipe is fixedly connected with a delivery pipe, the outer end of the delivery pipe is fixedly connected with a fixed cavity, the upper side of the fixed cavity is fixedly connected with a focusing pipe 1, the upper end of the focusing pipe 1 is fixedly connected with a telescopic pipe, the upper end of the telescopic pipe is fixedly connected with a focusing pipe 2, the right end of the focusing pipe 2 passes through the right side of the alloy drill bit main body and is provided with a plugging cap 1, the front side of the oil tank is provided with an oil inlet pipe, and the front end of the oil inlet pipe is provided with a plugging cap 2.

[0008] According to the internal oil replenishment type carbide drill bit, a ventilation pipe is fixedly connected to the left side of the oil tank, and a plugging cap is provided at the left end of the ventilation pipe to facilitate ventilation of the oil tank.

[0009] According to the internal oil replenishment type cemented carbide drill bit, the mesh plate is slidably connected to the oil tank, which facilitates the oil replenishment of the drill bit.

[0010] According to the internal oil-replenishing cemented carbide drill bit, the number of the oil-replenishing holes, baffles, fixing tubes and delivery tubes are all multiple.

[0011] According to the internal oil replenishment type cemented carbide drill bit, the delivery pipe is fixedly connected to the mesh plate.

[0012] According to the internal oil replenishment type cemented carbide drill bit, the delivery pipe is arranged in an L-shaped structure.

[0013] According to the internal oil-replenishing cemented carbide drill, the lower end of the oil-replenishing hole extends to the lower end of the carbide drill body.

[0014] Beneficial effects:

[0015] By arranging the oil tank, the mesh plate, the air bag, the fixed pipe, the baffle, the oil replenishing hole, the delivery pipe, the fixed cavity and the second central pipe, it is convenient to replenish oil to the alloy drill bit body and reduce the temperature of the drill bit. By flushing high-speed gas into the second central pipe, it is convenient to clean the iron filings in the oil replenishing hole to avoid affecting the oil replenishment of the drill bit.

[0016] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0018] Figure 1 This is a three-dimensional structural diagram of an internal oil-replenishing carbide drill bit of the utility model;

[0019] Figure 2 This is a sectional three-dimensional structural diagram of an internal oil replenishing carbide drill bit of the utility model;

[0020] Figure 3 for Figure 2 The enlarged view of point A in the middle;

[0021] Figure 4 This is a sectional stereoscopic structural diagram of an internal oil replenishing carbide drill bit of the utility model from another perspective.

[0022] Legend:

[0023] 1. Alloy drill bit body; 2. Plug cap 1; 3. Plug cap 2; 4. Plug cap 3; 5. Oil supply unit; 501. Mounting slot; 502. Oil tank; 503. Oil supply hole; 504. Baffle; 505. Fixed pipe; 506. Air bag; 507. Mesh plate; 508. Delivery pipe; 509. Fixed cavity; 510. Centralizing pipe 1; 511. Telescopic pipe; 512. Centralizing pipe 2; 6. Ventilation pipe; 7. Oil inlet pipe. DETAILED DESCRIPTION

[0024] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0025] Reference Figure 1-4 An internal oil-replenishing cemented carbide drill comprises an alloy drill body 1: an oil-replenishing unit 5 is arranged on the inner side of the alloy drill body 1, wherein the oil-replenishing unit 5 facilitates the oil-replenishing operation on the lower end of the alloy drill body 1.

[0026] The oil replenishing unit 5 includes a mounting groove 501, which is provided on the inner side of the alloy drill bit body 1, and an oil tank 502 is fixedly connected to the inner side of the mounting groove 501. The bottom of the oil tank 502 and the inner side of the alloy drill bit body 1 are both provided with oil replenishing holes 503. A mesh plate 507 is provided on the inner side of the oil tank 502, and an air bag 506 is provided between the lower side of the mesh plate 507 and the bottom of the oil tank 502. A fixed pipe 505 is fixedly connected to the lower side of the mesh plate 507, and a baffle 504 is fixedly connected to the lower end of the fixed pipe 505. An air outlet hole is provided on the lower side of the baffle 504, and an air bag 506 is fixedly connected to the upper end of the fixed pipe 505. The delivery pipe 508, the outer end of the delivery pipe 508 is fixedly connected to the fixed cavity 509, the upper side of the fixed cavity 509 is fixedly connected to the centralizing pipe 1 510, the upper end of the centralizing pipe 1 510 is fixedly connected to the telescopic pipe 511, the upper end of the telescopic pipe 511 is fixedly connected to the centralizing pipe 2 512, the right end of the centralizing pipe 2 512 passes through the right side of the alloy drill bit body 1 and is provided with a plugging cap 1 2, the front side of the oil tank 502 is provided with an oil inlet pipe 7, the front end of the oil inlet pipe 7 is provided with a plugging cap 2 3, the number of the oil replenishing hole 503, the baffle 504, the fixed pipe 505 and the delivery pipe 508 are all provided in plurality, the mesh plate 507 The delivery pipe 508 is slidably connected to the oil tank 502, and the delivery pipe 508 is fixedly connected to the mesh plate 507. The delivery pipe 508 is set in an L-shaped structure. The lower end of the oil replenishment hole 503 extends to the lower end of the alloy drill bit body 1. After the alloy drill bit body 1 is used for a period of time, the drill bit temperature rises, so that the airbag 506 expands, and the airbag 506 drives the mesh plate 507 to rise. The mesh plate 507 drives the fixed pipe 505 to move, and the fixed pipe 505 drives the baffle 504 to rise. The baffle 504 is separated from the oil replenishment hole 503, which makes it easy for the oil in the oil tank 502 to enter the lower end of the alloy drill bit body 1. When the drill bit is used, the concentrated pipe 55 The plugging cap 12 is removed, and then the output pipe of the external air pump is connected to the centralizing pipe 2 512, and the air pump is started to allow the external high-speed airflow to pass through the centralizing pipe 2 512, the telescopic pipe 511 and the centralizing pipe 1 510, and enter the fixed cavity 509, and then the gas is distributed to the multiple fixed pipes 505 through the multiple delivery pipes 508, and the gas is passed into the baffle 504, and the high-speed gas is passed into the oil replenishing hole 503 through the air outlet of the baffle 504, so that the impurities and iron filings in the oil replenishing hole 503 are flushed out by the gas for cleaning, so as to avoid the accumulation of a large amount of impurities and iron filings, which will affect the oil replenishing effect of the alloy drill bit body 1.

[0027] A ventilation pipe 6 is fixedly connected to the left side of the oil tank 502, and a plugging cap 34 is provided at the left end of the ventilation pipe 6, so that the ventilation of the oil tank 502 is facilitated.

[0028] Working principle: When in use, the temperature of the alloy drill bit body 1 rises, and then the air bag 506 drives the baffle 504 to separate from the oil filling hole 503, so that the oil in the oil tank 502 can be used to fill the lower end of the alloy drill bit body 1 through the oil filling hole 503. After the oil filling is completed, the plugging cap 2 is removed, and then the output pipe of the air pump is connected to the centralizing pipe 2 512, the air pump is started, and through the centralizing pipe 2 512, the centralizing pipe 1 510, the telescopic pipe 511, the fixed cavity 509, the delivery pipe 508, the fixed pipe 505 and the baffle 504, it is convenient to introduce high-speed gas into multiple oil filling holes 503, so as to facilitate the cleaning of impurities and iron filings in the oil filling holes 503, avoid blocking the oil filling holes 503, and reduce the oil filling effect of the alloy drill bit body 1.

[0029] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. An internal oil replenishing cemented carbide drill bit, characterized in that: It comprises an alloy drill bit body (1); an oil replenishing unit (5) is arranged inside the alloy drill bit body (1); The oil replenishing unit (5) comprises a mounting groove (501), wherein the mounting groove (501) is provided on the inner side of the alloy drill bit body (1), an oil tank (502) is fixedly connected to the inner side of the mounting groove (501), an oil replenishing hole (503) is provided at the bottom of the oil tank (502) and the inner side of the alloy drill bit body (1), a mesh plate (507) is provided on the inner side of the oil tank (502), an air bag (506) is provided between the lower side of the mesh plate (507) and the bottom of the oil tank (502), a fixed tube (505) is fixedly connected to the lower side of the mesh plate (507), a baffle (504) is fixedly connected to the lower end of the fixed tube (505), and the baffle (504) is An air outlet is provided on the lower side. The upper end of the fixed tube (505) is fixedly connected to a delivery tube (508). The outer end of the delivery tube (508) is fixedly connected to a fixed cavity (509). The upper side of the fixed cavity (509) is fixedly connected to a first centralizing tube (510). The upper end of the first centralizing tube (510) is fixedly connected to a telescopic tube (511). The upper end of the telescopic tube (511) is fixedly connected to a second centralizing tube (512). The right end of the second centralizing tube (512) passes through the right side of the alloy drill bit body (1) and is provided with a first plugging cap (2). The front side of the oil tank (502) is provided with an oil inlet pipe (7). The front end of the oil inlet pipe (7) is provided with a second plugging cap (3).

2. The internal oil replenishment type cemented carbide drill according to claim 1, characterized in that: The left side of the oil tank (502) is fixedly connected with a ventilation pipe (6), and the left end of the ventilation pipe (6) is provided with a blocking cap three (4).

3. The internal oil replenishing cemented carbide drill bit according to claim 1, characterized in that: The mesh plate (507) is slidably connected to the oil tank (502).

4. The internal oil replenishing cemented carbide drill bit according to claim 1, characterized in that: The oil replenishing hole (503), the baffle (504), the fixing pipe (505) and the delivery pipe (508) are all provided in plural numbers.

5. The internal oil replenishing cemented carbide drill bit according to claim 1, characterized in that: The delivery pipe (508) is fixedly connected to the mesh plate (507).

6. The internal oil replenishing cemented carbide drill bit according to claim 1, characterized in that: The delivery pipe (508) is arranged in an L-shaped structure.

7. The internal oil replenishing cemented carbide drill bit according to claim 1, characterized in that: The lower end of the oil supply hole (503) extends to the lower end of the alloy drill bit body (1).

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