CN217421069U

CN217421069U - Trolley drill bit

Info

Publication number: CN217421069U
Application number: CN202221474145.1U
Authority: CN
Inventors: 沈国华
Original assignee: Zhejiang Planka Brazing Tool Co ltd
Current assignee: Zhejiang Planka Brazing Tool Co ltd
Priority date: 2022-06-10
Filing date: 2022-06-10
Publication date: 2022-09-13
Anticipated expiration: 2032-06-10

Abstract

The utility model relates to a platform truck drill bit, including drill bit body and table surface, table surface sets up on the work of drill bit body is served, table surface includes main working face and side working face, the central line of main working face and the axis coincidence of drill bit body, along the direction that is close to the drill bit body, the circumference border that main working face was kept away from to the side working face is towards the axis slope of keeping away from the drill bit body, along the direction that is close to main working face center, the central point of main working face is towards the direction protrusion of keeping away from the drill bit body, be provided with a plurality of main tooth's socket on the main working face, be provided with a plurality of side tooth's sockets on the side working face, be provided with the alloy tooth in main tooth's socket and the side tooth's socket, the lateral wall of drill bit body is provided with side slag chute. The service life of the drill bit is prolonged by the protruding arrangement of the main working face; the side slag discharging grooves are obliquely arranged along the same clockwise direction to improve the slag discharging speed; the setting that first passageway internal diameter is greater than the second passageway internal diameter increases rivers and to the impact force of disintegrating slag, makes things convenient for the disintegrating slag to discharge.

Description

Trolley drill bit

Technical Field

The application relates to the field of rock drilling equipment, in particular to a trolley drill bit.

Background

The trolley drill bit is generally a spherical drill bit and is widely applied to drilling tools required by stone yards, various mining, urban construction and national infrastructure construction.

The utility model discloses a platform truck drill bit, with an authority bulletin number of CN211623328U, which relates to the field of drilling tools and comprises a drill bit main body and a working table surface positioned at one axial end of the drill bit main body, wherein the working table surface comprises a first table surface and a second table surface connected to the outer side of the first table surface, the first table surface is provided with inner alloy teeth, and a plurality of outer alloy teeth are circumferentially distributed on the second table surface along the axis of the drill bit main body; the drill bit main part is last to have a plurality of sides to arrange the powder groove along circumference evenly distributed, and the powder groove intercommunication is arranged to the side to the second mesa, still is equipped with side round hole and end round hole in the drill bit main part, sets up the end guide slot that communicates between side row powder groove and end round hole on the first mesa, has still seted up the side guide slot on the second mesa, and side guide slot one end communicates to the powder groove is arranged to the side and the other end is close to interior alloy tooth setting.

In view of the above-mentioned related technologies, the inventor believes that when the bogie drill bit of the above-mentioned technology discharges slag, the slag in the drill hole and the alloy teeth collide with each other continuously, so that the alloy teeth are easy to loosen, thereby affecting the service life of the drill bit.

SUMMERY OF THE UTILITY MODEL

To increase the life of the drill bit, the present application provides a trolley drill bit.

The application provides a platform truck drill bit adopts following technical scheme:

a trolley drill comprises a drill body and a working table surface, wherein the working table surface is arranged on the working end of the drill body, the working table surface comprises a main working surface and a side working surface, the central line of the main working surface is superposed with the axis of the drill bit body, the side working faces are arranged around the circumference of the main working face, along the direction close to the drill bit body, the circumferential edge of the side working face far away from the main working face inclines towards the axis far away from the drill bit body along the direction close to the center of the main working face, the central point of the main working surface protrudes towards the direction far away from the drill bit body, a plurality of main tooth grooves are circumferentially arranged on the main working surface at intervals, a plurality of side tooth grooves are arranged on the side working surface at intervals in the circumferential direction, alloy teeth are arranged in the main tooth groove and the side tooth grooves, the lateral wall of drill bit body is provided with the side and arranges the cinder notch, the side is arranged the cinder notch and is run through side working face.

Through adopting above-mentioned technical scheme, when the user used the platform truck drill bit, the rotatory collision rock of drill bit, and alloy tooth striking rock forms the disintegrating slag, and the main working face protrusion sets up, and the tight face area of supporting of main flute cell wall and alloy tooth increases, and the structure of alloy tooth on the drill bit body is more firm, makes the alloy tooth be difficult for becoming flexible when receiving the disintegrating slag collision, increases the life of drill bit.

Optionally, the cross section of the side working surface is in a circular arc convex shape.

Through adopting above-mentioned technical scheme, the protruding setting of side working face circular arc, the tight face area increase of supporting of side flute cell wall and alloy tooth improves the connection stability of alloy tooth on the drill bit body, and difficult not hard up when making the alloy tooth receive the disintegrating slag collision increases the life of drill bit.

Optionally, the length directions of the plurality of side slag discharge grooves incline along the same clockwise direction.

Through adopting above-mentioned technical scheme, the length direction of side slag discharging groove inclines along same hour hand direction, and when making the drill bit rotate, the trend of disintegrating slag is coincide with the extending direction of side slag discharging groove for the disintegrating slag is difficult for colliding side slag discharging groove cell wall and falls back the chisel hole, makes and arranges sediment effectual, promotes the sediment speed of drill bit.

Optionally, the inclination angle between the length direction of the side slag discharging groove and the axis of the drill bit body is set to be 2-10 degrees along the same clockwise direction. .

Through adopting above-mentioned technical scheme, when the inclination of side slag discharging groove is less than 2 or is greater than 10, the equal easy collision of disintegrating slag side slag discharging groove both sides cell wall and fall back the chisel hole, and the inclination of side slag discharging groove is when 2 to 10, and the rotation angle of disintegrating slag and the length direction in side slag discharging groove are more similar, are difficult for colliding side slag discharging groove cell wall and fall back when making the disintegrating slag departure, promote the sediment speed of drill bit.

Optionally, an extension line of a connecting line of the drill bit body axis and the main tooth groove axis is positioned between adjacent side tooth grooves.

Through adopting above-mentioned technical scheme, when the drill bit used, a plurality of main tooth's sockets and a plurality of side tooth's socket stagger the setting on the drill bit body, and the alloy tooth separates the setting, makes table surface atress even to make the alloy tooth be difficult for impairedly, increase the life of drill bit body.

Optionally, a water flow channel is formed in the drill bit body, the length direction of the water flow channel is the same as that of the drill bit body, the water flow channel penetrates through one side, away from the working table surface, of the drill bit body, a through groove is formed between every two adjacent main tooth grooves, and one side, away from the main working surface, of each through groove is communicated with the water flow channel.

Through adopting above-mentioned technical scheme, the water in the rivers passageway flows from lining up the inslot, and through adding water, reduces flying upward of dust, reduces the inspiratory particulate matter of staff, and the guide disintegrating slag gets into the side and arranges the slag chute cell wall and arrange and open, promotes row's sediment speed.

Optionally, the water flow channel includes a first channel and a second channel, the ends of the first channel and the second channel are communicated, the second channel is located on one side of the drill bit body close to the working table, and the inner diameter of the first channel is greater than that of the second channel.

Through adopting above-mentioned technical scheme, the internal diameter of first passageway is greater than the internal diameter of second passageway, when making rivers get into the second passageway from first passageway, the flow cross section area of rivers reduces, makes the velocity of flow increase of rivers to make rivers increase the impact force of disintegrating slag, drive about the disintegrating slag and arrange from digging a hole.

Optionally, the groove wall of the side slag discharging groove is provided with a communicating hole, and the end part of the communicating hole far away from the side slag discharging groove is communicated with a water flow channel.

Through adopting above-mentioned technical scheme, the rivers that flow out in the intercommunication hole that sets up on the slag groove cell wall of side row flow back to the chisel hole in, receive the water current that the groove flows out of through to guide the disintegrating slag to discharge from the slag groove cell wall of side row, promote the sediment speed.

Optionally, a connecting groove is formed in the working table top, and two ends of the connecting groove in the length direction are communicated with the through groove and the side slag discharge groove.

By adopting the technical scheme, the slag generated by the alloy teeth in the main tooth groove is guided by the water flow penetrating through the groove to enter the side slag discharge groove from the groove wall of the joining groove to be discharged, so that the collision between the slag and the main working surface is reduced, and the service life of the drill bit body is prolonged.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the main working face is convexly arranged to prolong the service life of the drill bit;

2. the side slag discharging grooves are obliquely arranged along the same clockwise direction to improve the slag discharging speed;

3. the setting that first passageway internal diameter is greater than the second passageway internal diameter increases rivers and to the impact force of disintegrating slag, makes things convenient for the disintegrating slag to discharge.

Drawings

Fig. 1 is a schematic view of the overall structure of a trolley drill according to an embodiment of the present application.

Fig. 2 is a cross-sectional view taken along a-a of fig. 1.

Fig. 3 is a schematic view of the overall structure of the work table.

Description of reference numerals: 1. a drill bit body; 11. a water flow channel; 111. a first channel; 112. a second channel; 2. a work table; 21. a main working face; 211. a primary gullet; 212. a through groove; 22. a side working face; 221. a lateral gullet; 222. a communicating hole; 223. a side slag discharge groove; 23. a joining groove; 3. and (4) alloy teeth.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses a platform truck drill bit. Referring to fig. 1, a trolley drill includes a drill body 1 and a table top 2, the table top 2 being located on a working end of the drill body 1.

Referring to fig. 2, a water flow channel 11 for water flow is provided inside the drill bit body 1, the length direction of the water flow channel 11 is the same as the axial direction of the drill bit body 1, and the water flow channel 11 penetrates through one side of the drill bit body 1, which is far away from the working table top 2.

Referring to fig. 2, the water flow passage 11 includes a first passage 111 and a second passage 112, the end of the first passage 111 communicates with the end of the second passage 112, the inner diameter of the first passage 111 is larger than that of the second passage 112, and the length directions of the first passage 111 and the second passage 112 are the same as the axial direction of the bit body 1. The second passage 112 is located on one side of the drill bit body 1 close to the working table 2, and the end of the first passage 111 far away from the second passage 112 penetrates through one side of the drill bit body 1 far away from the working table 2.

Referring to fig. 1, the working table 2 includes a main working surface 21 and a side working surface 22, the central line of the main working surface 21 coincides with the axis of the drill bit body 1, the side working surface 22 extends around the circumferential edge of the main working surface 21, and the circumferential edge of the main working surface 21 is connected with the circumferential edge of the side working surface 22, and towards the direction close to the drill bit body 1, the circumferential edge of the side working surface 22 far from the main working surface 21 inclines towards the direction far from the axis of the drill bit body 1, the cross section of the side working surface 22 is in an arc convex shape, so that the areas of the abutting surfaces of the side tooth grooves 221 and the alloy teeth 3 are increased, and the connection stability of the alloy teeth 3 and the drill bit body 1 is improved.

Referring to fig. 2, the center point of the main working surface 21 protrudes in a direction away from the bit body 1 in a direction closer to the center of the main working surface 21.

Referring to fig. 1 and 3, three main tooth grooves 211 are formed in the main working surface 21 at intervals along the circumferential direction of the axis of the drill body 1, and the alloy teeth 3 are fixed in the main tooth grooves 211. The main working face 21 is convexly arranged, so that the groove wall of the main tooth groove 211 and the abutting face of the alloy teeth 3 are enlarged, the alloy teeth 3 are not easy to separate from the main tooth groove 211, and the service life of the drill bit body 1 is prolonged.

Referring to fig. 2 and 3, three through grooves 212 are formed in the main working surface 21, the through grooves 212 are located between adjacent main tooth grooves 211, and one side of each through groove 212, which is far away from the main working surface 21, is communicated with the second passage 112.

Referring to fig. 1 and 3, the side working faces 22 are provided with side tooth grooves 221 at intervals in the circumferential direction along the axis of the bit body 1, the extension lines of the connecting lines between the axis of the bit body 1 and the axis of the through groove 212 are located between the adjacent side tooth grooves 221, the extension lines of the connecting lines between the axis of the bit body 1 and the axis of the main tooth groove 211 are located between the adjacent side tooth grooves 221, and the side tooth grooves 221 are used for fixing the alloy teeth 3.

Referring to fig. 1 and 3, six side slag discharge grooves 223 are formed in the circumferential outer wall of the drill bit body 1, the end portions, far away from the drill bit body 1, of the side slag discharge grooves 223 penetrate through the side working face 22, and the side slag discharge grooves 223 are located between adjacent side tooth grooves 221. The length direction of side slag discharging groove 223 is along same hour hand slope, and the length direction of side slag discharging groove 223 and the contained angle of drill bit body 1 axis are between 2 to 10, and the length direction of side slag discharging groove 223 in the embodiment of this application is 6 with the contained angle of drill bit body 1 axis, and side slag discharging groove 223 radially runs through drill bit body 1 lateral wall along it.

Referring to fig. 1 and 2, the groove wall of the side slag discharge groove 223 is provided with a communication hole 222, and the end of the communication hole 222 far away from the side slag discharge groove 223 is communicated with the second channel 112. The connecting groove 23 is formed in the working table surface 2, two ends of the length of the connecting groove 23 are communicated with the through groove 212 and the side slag discharge groove 223, the connecting groove 23 penetrates through the outer wall of the working table surface 2 in the direction close to the alloy teeth 3, and water and crushed slag can be conveniently transited to the side slag discharge groove 223 from the through groove 212.

The implementation principle of this application embodiment a platform truck drill bit does: when the platform truck drill bit used, the user orders about drill bit body 1 with the 2 rocks that need the prospecting of table surface, and 3 striking rocks of alloy tooth form the disintegrating slag, and the setting of main working face 21 protrusion, main tooth groove 211 cell wall and 3 tight face areas of supporting of alloy tooth increase, and alloy tooth 3 structure on drill bit body 1 is more firm, and difficult not hard up when making alloy tooth 3 receive the disintegrating slag collision increases the life of drill bit.

Water in the water flow channel 11 rushes out impact slag from the through groove 212, so that the slag is discharged along the groove wall of the side slag discharge groove 223, and the slag is not easy to collide with the groove wall of the side slag discharge groove 223 and fall back into the chisel pit because the drill bit rotates and the trend of the slag is close to the inclination direction of the side slag discharge groove 223, thereby improving the slag discharge speed of the drill bit of the trolley.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. Trolley drill, including drill bit body (1) and table surface (2), table surface (2) sets up and serves in the work of drill bit body (1), table surface (2) include main working face (21) and side working face (22), the central line of main working face (21) and the axis coincidence of drill bit body (1), side working face (22) set up around main working face (21) circumference, along being close to the direction of drill bit body (1), the circumference border that main working face (21) was kept away from in side working face (22) is towards the axis slope of keeping away from drill bit body (1), its characterized in that: follow and being close to the direction at main working face (21) center, the central point of main working face (21) is towards the direction protrusion of keeping away from drill bit body (1), the circumference interval is provided with a plurality of main tooth's socket (211) on main working face (21), the circumference interval is provided with a plurality of side tooth's socket (221) on side working face (22), be provided with alloy tooth (3) in main tooth's socket (211) and side tooth's socket (221), the lateral wall of drill bit body (1) is provided with side slag discharging groove (223), side slag discharging groove (223) run through side working face (22).

2. The trolley drill bit of claim 1 wherein: the cross section of the side working surface (22) is in a circular arc convex shape.

3. The trolley drill bit of claim 1 wherein: the length directions of the side slag discharging grooves (223) are inclined along the same clockwise direction.

4. The trolley drill bit of claim 3 wherein: along the same clockwise direction, the inclination angle between the length direction of the side slag discharging groove (223) and the axis of the drill bit body (1) is set to be 2-10 degrees.

5. The trolley drill bit of claim 1 wherein: the extension line of the connecting line of the axis of the drill bit body (1) and the axis of the main tooth slot (211) is positioned between the adjacent side tooth slots (221).

6. The trolley drill bit of claim 1 wherein: a water flow channel (11) is formed in the drill bit body (1), the length direction of the water flow channel (11) is the same as that of the drill bit body (1), the water flow channel (11) penetrates through one side, away from the working table top (2), of the drill bit body (1), a through groove (212) is formed between the adjacent main tooth grooves (211), and one side, away from the main working face (21), of the through groove (212) is communicated with the water flow channel (11).

7. The trolley drill bit as recited in claim 6, wherein: the water flow channel (11) comprises a first channel (111) and a second channel (112), the ends of the first channel (111) are communicated with the ends of the second channel (112), the second channel (112) is located on one side, close to the working table surface (2), of the drill bit body (1), and the inner diameter of the first channel (111) is larger than that of the second channel (112).

8. The trolley drill bit as recited in claim 6, wherein: the groove wall of the side slag discharging groove (223) is provided with a communicating hole (222), and the end part of the communicating hole (222) far away from the side slag discharging groove (223) is communicated with a water flow channel (11).

9. The trolley drill bit of claim 8 wherein: the working table top (2) is provided with a connecting groove (23), and two ends of the connecting groove (23) in the length direction are communicated with the through groove (212) and the side slag discharge groove (223).