High-hardness alloy embedded type tunneling tooth

Abstract

The utility model relates to the technical field of heading machine accessories, and discloses a high-hardness alloy embedded type heading tooth which comprises a base, a plurality of supporting plates are fixedly connected to the top end of the base, adjusting screw rods are rotationally connected to the front ends of the supporting plates, and connecting columns are connected to the outer walls of the adjusting screw rods through extrusion sets. Second connecting plates are fixedly connected to the front side and the rear side of the top end of the connecting column, butt joint plates are connected to the top ends of the second connecting plates through fixing sets, toothed plate bodies are fixedly connected to the top ends of the butt joint plates, wedging grooves are formed in the front side and the rear side of the inner wall of each butt joint plate, and fixing pipes are fixedly connected to the positions, corresponding to the top ends of the extrusion blocks, of the inner wall of the supporting plate. According to the utility model, the toothed plate body is detachable, the mounting and dismounting processes of the tunneling teeth are simplified, the working efficiency is improved, the maintenance time and cost are reduced, and the impact resistance and the thermal crack resistance are further improved, so that the toothed plate body has the advantages of wear resistance, impact resistance, thermal stability and corrosion resistance.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of heading machine accessories, especially to a high-hardness alloy inlaid heading tooth. BACKGROUND

[0002] The heading tooth is a key component installed at the head of a heading machine such as a heading machine, a shield machine, a drilling machine, etc., and breaks geological materials through rotation or impact. The shape and size of the heading tooth vary according to different application scenarios and geological conditions, and common shapes include conical, spherical, flat, etc.

[0003] According to the search, the structure of a heading tooth of a heading machine is disclosed in Patent No. CN221236715U. The heading tooth of the utility model comprises an alloy steel tooth body, the front end of the alloy steel tooth body is a conical structure, a hard alloy top tooth is fixed at the top end of the conical structure by brazing, a plurality of first hard alloy balls are arranged on the conical inclined surface of the alloy steel tooth body near the hard alloy top tooth, a plurality of cutting grooves are arranged below the conical inclined surface of the alloy steel tooth body, and a plurality of second hard alloy balls are arranged between the cutting grooves. The heading tooth of the utility model uses a plurality of hard alloy balls on the side surface of the cutting tooth instead of an alloy cutter head, so that the hard alloy balls can be balanced under stress while ensuring the vibration cutting effect, thereby reducing the possibility of falling of the hard alloy balls, increasing the service life of the cutting tooth, increasing the working efficiency of the heading machine, and reducing the replacement cost.

[0004] Based on the above patent, the use of a plurality of hard alloy balls on the side surface of the cutting tooth instead of an alloy cutter head makes the hard alloy balls balanced under stress while ensuring the vibration cutting effect, thereby reducing the possibility of falling of the hard alloy balls, increasing the service life of the cutting tooth, increasing the working efficiency of the heading machine, and reducing the replacement cost. Meanwhile, the arrangement of a plurality of cutting grooves and a plurality of hard alloy balls on the side surface of the heading tooth increases the depth of the heading tooth and the range of use. However, when the heading tooth needs to be replaced, the heading tooth is installed on the base by welding in the patent, which requires the worker to disassemble the entire base. The disassembly requires the use of professional cutting equipment such as oxygen cutting and plasma cutting for step-by-step cutting, which is complicated and time-consuming, and increases the time cost of replacement. SUMMARY

[0005] The utility model aims to solve the problems in the prior art and provides a high-hardness alloy inlaid heading tooth, which makes the tooth plate body detachable, simplifies the installation and disassembly process of the heading tooth, improves the working efficiency, reduces the maintenance time and cost, further improves the impact resistance and thermal crack resistance, and the tooth plate body has wear resistance, impact resistance, thermal stability and corrosion resistance.

[0006] To achieve the above object, the utility model provides the following technical scheme:

[0007] A high hardness alloy inlay type heading tooth, including base, the base top end is connected with a plurality of supporting plates, the supporting plate front end is rotatably connected with adjusting screw rod, the adjusting screw rod outer wall is connected with connecting column through extrusion group, the connecting column top end is fixedly connected with connecting plate no.

[0008] Further, the supporting plate left and right ends are fixedly connected with a plurality of reinforcing plates, and the reinforcing plate bottom end is fixedly connected to the base top end.

[0009] Further, the supporting plate inner wall is fixedly connected with a fitting plate, and the butt joint plate bottom end outer wall is tightly attached to the fitting plate inner wall.

[0010] Further, the extrusion group includes extrusion blocks that are threadedly connected to the front and rear ends of the adjusting screw rod outer wall, and the extrusion block bottom end is slidably connected to the supporting plate bottom end inner wall.

[0011] Further, the fixed group includes a fixed ring that is fixedly connected to the fixed tube inner wall bottom end, and the fixed ring front and rear ends are rotatably connected with connecting plate no.

[0012] Further, the fixed tube inner wall top end is fixedly connected with a return spring, and the return spring bottom end is fixedly connected to the connecting column top end.

[0013] Further, the tooth plate body outer side is provided with a tungsten cobalt carbide layer, the tungsten cobalt carbide layer inner side is provided with a nickel base alloy layer, and the nickel base alloy layer inner side is provided with a tantalum reinforced alloy layer.

[0014] The utility model has the following beneficial effects:

[0015] The utility model discloses a fixed butt joint board through the rotation adjustment screw makes extruding block move and makes it push the connecting column, makes connecting board no. 2 and connecting board no. 1 open and card into the fitting groove, thereby, fixed butt joint board, make the tooth plate body install in the fitting board, after reverse rotation adjustment screw, extruding block removes the fixed force of connecting column, reset spring makes connecting column shrink, drive connecting board no. 2 and connecting board no. 1 fall off from fitting groove, make the tooth plate body detachable, have simplified the installation and dismounting process of the tunneling tooth, also improved work efficiency, reduced maintenance time and cost.

[0016] The utility model discloses a fixed force is provided through the reinforcing plate at the support plate, ensure the stability when tunneling, the high hardness and wear resistance of tungsten cobalt carbide layer promote the impact resistance of tooth plate body, nickel base alloy layer provides good toughness and anti -thermal crack ability, possess excellent thermal stability and corrosion resistance, tantalum reinforced alloy layer through refining microstructure, further improve the impact resistance and anti -thermal crack ability, and the tooth plate body therefore has wear -resisting, impact -resistant, thermal stability and corrosion resistance. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 A high hardness alloy inlaid type tunneling tooth is provided for the utility model, and the three -dimensional view is shown in the figure;

[0018] Figure 2 A support plate half cutaway view of a high hardness alloy inlaid type tunneling tooth is provided for the utility model;

[0019] Figure 3 A fitting board half cutaway view of a high hardness alloy inlaid type tunneling tooth is provided for the utility model;

[0020] Figure 4 A butt joint board half cutaway view of a high hardness alloy inlaid type tunneling tooth is provided for the utility model;

[0021] Figure 5 A tungsten cobalt carbide layer section view of a high hardness alloy inlaid type tunneling tooth is provided for the utility model;

[0022] Figure 6 A tantalum reinforced alloy layer section view of a high hardness alloy inlaid type tunneling tooth is provided for the utility model.

[0023] Legend:

[0024] 1, base; 2, support plate; 3, reinforcing plate; 4, adjustment screw; 5, fitting board; 6, tooth plate body; 7, extruding block; 8, butt joint board; 9, fixed tube; 10, connecting column; 11, fixed ring; 12, reset spring; 13, connecting board no. 1; 14, connecting board no. 2; 15, fitting groove; 16, tungsten cobalt carbide layer; 17, nickel base alloy layer; 18, tantalum reinforced alloy layer. DETAILED DESCRIPTION

[0025] Clearly, the described embodiments are merely a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0026] With reference to Figures 2-4 The utility model provides an embodiment: a kind of high hardness alloy inlaying type tunneling tooth, it is fixedly connected with several support plates 2 to the top end of base 1, the front end of support plate 2 is rotatably connected with adjusting screw rod 4, the outer wall front and rear ends of adjusting screw rod 4 are all threadedly connected extruding block 7, the bottom end of extruding block 7 is all slidingly connected in the inner wall of support plate 2 bottom end, the inner wall of fixed pipe 9 is slidingly connected with connecting column 10, the bottom end of connecting column 10 is attached to the top end of extruding block 7, the top end of connecting column 10 is all fixedly connected with connecting plate two 14 two sides, the inner wall bottom end of fixed pipe 9 is fixedly connected with fixed ring 11, the front and rear ends of fixed ring 11 are rotatably connected with connecting plate one 13, the opposite end of connecting plate one 13 is rotatably connected with connecting plate two 14, the opposite end of connecting plate two 14 is rotatably connected in the top end of connecting column 10 two sides, the top end of butt joint plate 8 is all fixedly connected with tooth plate body 6, the front and rear sides of butt joint plate 8 inner wall are all set with fitting groove 15, the top end of extruding block 7 is all fixedly connected with fixed pipe 9 in the inner wall of support plate 2, the inner wall of support plate 2 is all fixedly connected with fitting plate 5, the bottom end outer wall of butt joint plate 8 is attached to the inner wall of fitting plate 5, the top end of fixed pipe 9 inner wall is fixedly connected with return spring 12, and the bottom end of return spring 12 is fixedly connected in the top end of connecting column 10.

[0027] Specifically: in the process of installing the digging tooth, first, the butt joint plate 8 provided at the tooth plate body 6 is butt jointed at the fixed pipe 9 provided at the base 1, then the extrusion block 7 is driven to move by rotating the adjusting screw 4, with the movement of the extrusion block 7, it will generate force on the connecting column 10, prompting the connecting column 10 to move, the movement of the connecting column 10 further drives the connecting plate two 14 and the connecting plate one 13 to cooperate with each other, so that the connecting plate two 14 and the connecting plate one 13 are opened and clamped into the fitting groove 15, thereby realizing the fixation of the butt joint plate 8, in this way, the tooth plate body 6 is stably installed in the fitting plate 5, when it is necessary to disassemble the tooth plate body 6, only need to reverse the adjusting screw 4, so that the extrusion block 7 removes the fixing force on the connecting column 10, at this time, the return spring 12 will push the connecting column 10 to shrink due to its own elastic force, the shrinkage of the connecting column 10 in turn drives the connecting plate two 14 and the connecting plate one 13 to shrink, so that it is separated from the fitting groove 15, in this way, the tooth plate body 6 can be easily disassembled and replaced, this design not only simplifies the installation and disassembly process of the digging tooth, but also improves the work efficiency, reduces the maintenance time and cost, at the same time, by using the mechanical connection mode, avoid the various disadvantages brought by the traditional welding method, such as base damage, cooperation precision decline and other problems, thereby prolonging the service life of the digging tooth and the stability of the whole equipment.

[0028] Figure 1 、 Figure 5 and Figure 6 The support plate 2 is fixedly connected with a plurality of reinforcing plates 3 at both ends, the reinforcing plates 3 are fixedly connected at the top end of the base 1, the outer side of the tooth plate body 6 is provided with a tungsten cobalt carbide layer 16, the inner side of the tungsten cobalt carbide layer 16 is provided with a nickel-based alloy layer 17, and the inner side of the nickel-based alloy layer 17 is provided with a tantalum reinforced alloy layer 18.

[0029] Specifically: in the process of tunneling, the reinforcing plate 3 arranged at the support plate 2 plays a key supporting role, and through the reinforcement of the reinforcing plate 3, the stability of the entire structure is significantly improved, so that the stability during tunneling can be maintained, effectively resisting forces and impacts from all directions. The material selection of the tooth plate body 6 adopts a multi-layer composite structure to meet different performance requirements. First, the tungsten-cobalt carbide layer 16 as the outermost layer has extremely high hardness and wear resistance, which can effectively resist the wear of hard materials such as rocks, ensuring that the tooth plate body 6 maintains good impact resistance even after long-term work. Under the tungsten-cobalt carbide layer 16 is the nickel-based alloy layer 17, which has excellent toughness and thermal crack resistance, as well as excellent thermal stability and corrosion resistance. These characteristics enable the tooth plate body 6 to work stably in high-temperature, high-pressure, and corrosive environments for a long time, greatly extending its service life. In addition, in order to further improve the performance of the tooth plate body 6, a tantalum reinforced alloy layer 18 is specially added. The introduction of tantalum can refine the microstructure of the alloy, thereby significantly improving its impact resistance and thermal crack resistance. The addition of this layer effectively enhances the overall performance of the tooth plate body 6, enabling it to operate more reliably in harsh working environments. In summary, through reasonable material selection and structural design, the tooth plate body 6 not only has excellent wear resistance and impact resistance, but also has good thermal stability and corrosion resistance, fully meeting the stringent requirements of modern tunneling operations on tools.

[0030] Working principle: when the butt plate 8 arranged at the tooth plate body 6 is butted at the fixed tube 9 arranged at the base 1, the rotating adjusting screw 4 moves the extrusion block 7, thereby allowing the extrusion block 7 to move the connecting column 10, which in turn allows the connecting plate two 14 and the connecting plate one 13 to cooperate with each other, causing the connecting plate two 14 and the connecting plate one 13 to open and be clamped in the fitting groove 15, thereby achieving the fixation of the butt plate 8 and allowing the tooth plate body 6 to be installed in the fitting plate 5. After reversing the transmission adjusting screw 4, the extrusion block 7 removes the fixing force on the connecting column 10, and the elastic force generated by the return spring 12 causes the connecting column 10 to contract, thereby allowing the connecting column 10 to drive the connecting plate two 14 and the connecting plate one 13 to contract and allowing them to fall out of the fitting groove 15, enabling the tooth plate body 6 to be disassembled. The reinforcing plate 3 at the support plate 2 generates a fixing force to maintain stability during tunneling, the tungsten-cobalt carbide layer 16 has extremely high hardness and wear resistance, allowing the tooth plate body 6 to maintain good impact resistance, the nickel-based alloy layer 17 has good toughness and thermal crack resistance, as well as excellent thermal stability and corrosion resistance, and the tantalum reinforced alloy layer 18 adopts a refined alloy microstructure to improve the impact resistance and thermal crack resistance of the tooth plate body 6.

[0031] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application has been described in detail, for the skilled in the art, it still can be modified, or for part of the technical features of the equivalent replacement, the spirit and principles of the present application, made any modification, equivalent replacement, improvement, etc., should be included within the scope of the present application.

Claims

1. A high-hardness alloy tipped tunneling tooth comprising a base (1), characterized in that: The base (1) top end fixedly connected with a plurality of support plate (2), the support plate (2) front end rotationally connected with adjusting screw (4), the adjusting screw (4) outer wall through extrusion group connected with connecting column (10), the connecting column (10) top end front and back both sides are fixedly connected with connecting plate two (14), the connecting plate two (14) top end through fixed group connected with butt joint plate (8), the butt joint plate (8) top end are fixedly connected with the toothed plate body (6), the butt joint plate (8) inner wall front and back both sides are all set up with the slot (15), the support plate (2) inner wall corresponding extrusion block (7) top end are all fixedly connected with fixed tube (9).

2. A high hardness alloy tipped pick according to claim 1 wherein: The support plate (2) left and right ends are fixedly connected with a plurality of reinforcing plates (3), and the reinforcing plates (3) are fixedly connected to the top end of the base (1).

3. A high hardness alloy tipped pick according to claim 1 wherein: The support plate (2) inner wall are all fixedly connected with the fitting plate (5), and the butt joint plate (8) bottom end outer wall and the fitting plate (5) inner wall are close.

4. A high hardness alloy tipped pick according to claim 1 wherein: The extrusion group includes extrusion block (7) which is threadedly connected to the front and back ends of the outer wall of the adjusting screw (4), the extrusion block (7) bottom end is slidably connected to the inner wall of the bottom end of the support plate (2), the fixed tube (9) inner wall is slidably connected with connecting column (10), and the connecting column (10) bottom end and the extrusion block (7) top end are close.

5. A high hardness alloy tipped pick according to claim 1 wherein: The fixed group includes fixed ring (11) which is fixedly connected to the inner wall bottom end of the fixed tube (9), the fixed ring (11) front and back ends are rotatably connected with connecting plate one (13), the connecting plate one (13) opposite ends are rotatably connected with connecting plate two (14), and the connecting plate two (14) opposite ends are rotatably connected to the top end of the connecting column (10) front and back sides.

6. A high hardness alloy tipped digging tooth according to claim 1 wherein: The fixed tube (9) inner wall top end is fixedly connected with reset spring (12), and the reset spring (12) bottom end is fixedly connected to the top end of the connecting column (10).

7. A high hardness alloy tipped pick according to claim 1 wherein: The toothed plate body (6) is provided with a tungsten cobalt carbide layer (16) on the outside, a nickel-based alloy layer (17) is provided on the inside of the tungsten cobalt carbide layer (16), and a tantalum reinforced alloy layer (18) is provided on the inside of the nickel-based alloy layer (17).

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