CN213392142U

CN213392142U - Road planing tooth for mine oil field drill bit

Info

Publication number: CN213392142U
Application number: CN202022022836.5U
Authority: CN
Inventors: 胡竣
Original assignee: Nanchang Bailixin Alloy Tools Co ltd
Current assignee: Nanchang Bestway Cemented Carbide Co ltd
Priority date: 2020-09-15
Filing date: 2020-09-15
Publication date: 2021-06-08
Anticipated expiration: 2030-09-15

Abstract

The utility model relates to the technical field of mining equipment, in particular to a road planing tooth for a mine oil field drill bit, which comprises a road planing tooth, wherein the bottom end of the road planing tooth is provided with a threaded column, a limiting ring is coaxially and tightly welded on the threaded column, the bottom end of the threaded column is provided with a limiting groove, a reset spring is sleeved on the threaded column, and the bottom end of the threaded column is in threaded connection with a nut; a buffer mechanism is arranged below the road planing teeth; the road planing tooth for the mine oilfield drill bit is provided with the threaded column, the buffer mechanism and the like, when the operation is carried out, the sharp head of the road planing tooth is contacted with the hard bottom surface, the ground provides a reaction force for the road planing tooth, and under the action of the buffer spring, the impact force applied to the road planing tooth can be reduced and offset; this design has changed traditional drawback of digging the way tooth and has lacked buffer gear, through a plurality of buffer spring's effect, can become effectual protection to digging the way tooth, is favorable to prolonging the life who digs the way tooth.

Description

Road planing tooth for mine oil field drill bit

Technical Field

The utility model relates to a mining equipment technical field specifically is a mine oil field drill bit is with digging road tooth.

Background

Milling teeth, also called milling machine tool bits or planing teeth, are basically divided into two types of phi 20mm and phi 22mm in specification, which are distinguished according to the diameter of the bottom of the tool bit and are commonly used on mining oil field drills; the existing road planing tooth does not have a buffering function when used, when a hard operation point is milled, the sharp head of the road planing tooth is extremely easy to damage, and therefore the service life of the road planing tooth is shortened.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a mine oil field drill bit is with digging road tooth to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the road planing tooth for the mine oilfield drill bit comprises a road planing tooth, wherein a threaded column is arranged at the bottom end of the road planing tooth, a limiting ring is coaxially and tightly welded on the threaded column, a limiting groove is formed in the bottom end of the threaded column, a reset spring is sleeved on the threaded column, and a nut is further in threaded connection with the bottom end of the threaded column; a buffer mechanism is arranged below the road planing tooth, the buffer mechanism comprises two fixed blocks which are parallel to each other, sliding holes are formed in the triangular parts of the fixed blocks located below, through holes are formed in the centers of the top surfaces of the fixed blocks located above, the bottom ends of the threaded columns penetrate through the through holes, nuts are located between the two fixed blocks, connecting rods are tightly welded at the triangular parts of the fixed blocks located above, the connecting rods are connected with the sliding holes in a sliding mode, limiting blocks are coaxially and tightly welded at the bottom ends of the connecting rods, buffer springs are sleeved between the two fixed blocks on the connecting rods, limiting columns are coaxially and tightly welded at the centers of the top surfaces of the fixed blocks located below, and the limiting columns are in splicing fit with the limiting; and a connecting shaft is coaxially and tightly welded at the center of the bottom surface of the lower fixed block.

As the utility model discloses preferred technical scheme, spacing post with the whole shape of spacing groove all is the cross.

As the utility model discloses preferred technical scheme, dig the way tooth the screw thread post with the spacing ring is the integrated into one piece structure.

As the utility model discloses preferred technical scheme, the radius of stopper is greater than the radius of slide opening.

As the utility model discloses preferred technical scheme, the fixed block the connecting rod with the stopper all adopts the tungsten steel material to make.

As the utility model discloses preferred technical scheme, the slide opening with spacing post is located same vertical face.

Compared with the prior art, the beneficial effects of the utility model are that: the road planing tooth for the mine oilfield drill bit is provided with the threaded column, the buffer mechanism and the like, when the operation is carried out, the sharp head of the road planing tooth is contacted with the hard bottom surface, the ground provides a reaction force for the road planing tooth, and under the action of the buffer spring, the impact force applied to the road planing tooth can be reduced and offset; this design has changed traditional drawback of digging the way tooth and has lacked buffer gear, through a plurality of buffer spring's effect, can become effectual protection to digging the way tooth, is favorable to prolonging the life who digs the way tooth.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic diagram of the overall explosion structure of the present invention;

fig. 3 is a schematic view of a part of the structure of the present invention;

fig. 4 is an exploded schematic view of the buffering mechanism of the present invention;

fig. 5 is a schematic view of a part of the structure of the middle buffering mechanism of the present invention.

The various reference numbers in the figures mean:

1. planing road teeth;

2. a threaded post; 21. a return spring; 22. a nut; 23. a limiting groove; 24. a limiting ring;

3. a buffer mechanism; 31. a fixed block; 311. a slide hole; 312. a through hole; 32. a connecting rod; 33. a limiting block; 34. a buffer spring; 35. a limiting column;

4. and (7) connecting the shafts.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

The utility model provides a technical scheme:

referring to fig. 1-5, a road planing tooth for a mine oilfield drill bit comprises a road planing tooth 1, a threaded column 2 is arranged at the bottom end of the road planing tooth 1, a limiting ring 24 is coaxially and tightly welded on the threaded column 2, a limiting groove 23 is formed in the bottom end of the threaded column 2, a return spring 21 is sleeved on the threaded column 2, and a nut 22 is further in threaded connection with the bottom end of the threaded column 2; a buffer mechanism 3 is arranged below the road planing tooth 1, the buffer mechanism 3 comprises two fixing blocks 31 which are parallel to each other, a sliding hole 311 is formed in the triangular position of the fixing block 31 which is positioned below, a through hole 312 is formed in the center of the top surface of the fixing block 31 which is positioned above, the bottom end of the threaded column 2 penetrates through the through hole 312, a nut 22 is positioned between the two fixing blocks 31, a connecting rod 32 is tightly welded at the triangular position of the fixing block 31 which is positioned above, the connecting rod 32 is connected with the sliding hole 311 in a sliding mode, a limiting block 33 is coaxially and tightly welded at the bottom end of the connecting rod 32, a buffer spring 34 is sleeved between the two fixing blocks 31 on the connecting rod 32, a limiting column 35 is coaxially and tightly welded at the center; the connecting shaft 4 is coaxially and tightly welded at the center of the bottom surface of the lower fixed block 31.

In this embodiment, the whole shape of spacing post 35 and spacing groove 23 all is the cross, and criss-cross spacing post 35 provides limiting displacement for criss-cross spacing groove 23, and when connecting axle 4 drove fixed block 31 and rotates, spacing post 35 rotated and drives screw post 2 and rotate to the drive digs way tooth 1 and rotates in step.

In this embodiment, the road planing teeth 1, the threaded column 2 and the limiting ring 24 are of an integrally formed structure, and the integrally formed structure has better structural strength.

In this embodiment, the radius of the stopper 33 is larger than the radius of the slide hole 311, and the stopper 33 provides a stopper function for the link 32 to prevent the link 32 from being disengaged from the slide hole 311.

In this embodiment, the fixing block 31, the connecting rod 32 and the limiting block 33 are made of tungsten steel, the tungsten steel has the characteristics of high hardness and high strength, and the structural strength and the service life of the buffer mechanism 3 are increased by using the tungsten steel.

In this embodiment, the slide hole 311 and the limiting post 35 are located on the same vertical plane, which facilitates the insertion of the threaded post 2 into the slide hole 311 and then the butt joint with the limiting post 35, and facilitates the insertion and matching of the limiting post 35 and the limiting groove 23.

The mine oil field drill bit of this embodiment is with digging way tooth when using, dig way tooth 1's prong and ground contact, dig way tooth 1 reaction force is given on hard ground this moment, under the effect of reaction force, dig way tooth 1 and drive screw post 2 and slide in through-hole 312, reset spring 21 is compressed, reset spring 2 is to fixed block 31 effort simultaneously, connecting rod 32 slides in slide opening 311 this moment, buffer spring 34 is compressed, in reset spring 21 and buffer spring 34's deformation, the impact force that digs way tooth 1 and received is cut down promptly.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a mine oil field drill bit is with digging way tooth, includes digging way tooth (1), its characterized in that: the bottom end of the road planing tooth (1) is provided with a threaded column (2), a limiting ring (24) is coaxially and tightly welded on the threaded column (2), a limiting groove (23) is formed in the bottom end of the threaded column (2), a reset spring (21) is sleeved on the threaded column (2), and the bottom end of the threaded column (2) is further in threaded connection with a nut (22); dig the below of way tooth (1) and be equipped with buffer gear (3), buffer gear (3) include two fixed block (31) that are parallel to each other, are located the below slide opening (311) has been seted up to the triangle department of fixed block (31), be located the top through-hole (312) has been seted up to the top surface center department of fixed block (31), through-hole (312) is passed to the bottom of screw thread post (2), just nut (22) are located between two fixed block (31), are located the top the triangle department of fixed block (31) closely welds connecting rod (32), connecting rod (32) and slide opening (311) sliding connection, the coaxial inseparable welding in bottom of connecting rod (32) has stopper (33), it is equipped with buffer spring (34) to lie in on connecting rod (32) between two fixed block (31), is located the below the coaxial inseparable welding in top surface center department of fixed block (31) has spacing post (35), the limiting column (35) is in plug-in fit with the limiting groove (23); the connecting shaft (4) is coaxially and tightly welded at the center of the bottom surface of the lower fixing block (31).

2. The planing tooth for a mine oilfield drill bit of claim 1, wherein: the overall shapes of the limiting column (35) and the limiting groove (23) are all in a cross shape.

3. The planing tooth for a mine oilfield drill bit of claim 1, wherein: the road planing tooth (1), the threaded column (2) and the limiting ring (24) are of an integrally formed structure.

4. The planing tooth for a mine oilfield drill bit of claim 1, wherein: the radius of the limiting block (33) is larger than that of the sliding hole (311).

5. The planing tooth for a mine oilfield drill bit of claim 1, wherein: the fixed block (31), the connecting rod (32) and the limiting block (33) are all made of tungsten steel.

6. The planing tooth for a mine oilfield drill bit of claim 1, wherein: the sliding hole (311) and the limiting column (35) are located on the same vertical surface.