CN212003190U

CN212003190U - Wear-resisting plate structure for block type modular shield machine

Info

Publication number: CN212003190U
Application number: CN201922349623.0U
Authority: CN
Inventors: 朱均; 宋山
Original assignee: Chengdu Rail Transit Industrial Technology Research Institute Co ltd
Current assignee: Chengdu Rail Transit Industrial Technology Research Institute Co ltd
Priority date: 2019-12-24
Filing date: 2019-12-24
Publication date: 2020-11-24
Anticipated expiration: 2029-12-24

Abstract

The utility model discloses a sectional type modularization shield constructs machine wear-resisting plate structure, including at least one middle module, middle module both ends all are connected with the tip module. The utility model discloses be favorable to the scale production, satisfy the demand of producing different angle antifriction plates simultaneously, strengthened welding seam intensity, reduce carbide and fall a risk, high energy beam laser cladding build-up welding wearing layer has reduced the influence of heat affected zone, and hardness is higher than traditional welding, increases the wearability, adapts to standardized production.

Description

Wear-resisting plate structure for block type modular shield machine

Technical Field

The utility model relates to a shield constructs cutter technical field, especially relates to a sectional type modularization shield constructs machine wear-resisting plate structure.

Background

The shield machine cutter head is made of Q345B (low-carbon alloy steel) and is excellent in weldability, when the shield machine cutter head is used, a cutter seat and other parts need to be welded on the shield machine cutter head, different cutters are arranged to guarantee cutting of a soil body, the wear resistance of the shield machine cutter head is poor, wear-resisting plates at different angles need to be welded around the cutter head according to requirements of different shield machine types in order to guarantee structural integrity and usability of the cutter head, and the wear-resisting plates have the function of protecting the cutter head. The existing wear-resistant plate is directly produced according to the model requirement and the angle, has specificity, can not be produced in large batch and has high production cost. Meanwhile, the welding notch of the wear-resistant plate is a U-shaped groove, the hard alloy is square, in the structure, in the brazing process, the brazing filler metal is fast in loss, the supplemented brazing filler metal is more, the silver brazing filler metal is expensive, the material waste is avoided, the production cost is increased, manual arc surfacing is generally adopted for welding the wear-resistant layer, the surfacing layer is poor in attractiveness, low in manual efficiency, poor in repeatability and unstable in forming quality.

Therefore, aiming at the problem that the wear-resistant plate needs to be customized for different types and angles, the wear-resistant plate structure for the block type modularized shield machine can be developed by technical personnel in the field, can be applied to shield machines with different angles and types, is suitable for scale production, reduces the waste of brazing filler metal, and has stable quality and good durability.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned defect of prior art, the utility model aims to solve the technical problem that a antifriction plate corresponds different models and angle demand and must customize the production problem among the prior art is provided, and the field technical personnel are dedicated to developing a block type modularization shield and are constructed machine antifriction plate structure, can be applied to the shield of different angles and model and construct the machine, are applicable to mass production, reduce the waste of brazing filler metal simultaneously, and stable in quality, and the durability is good.

In order to achieve the above object, the utility model provides a sectional type modularization shield constructs machine wear-resisting plate structure, including at least one middle module, middle module both ends all are connected with the tip module.

Preferably, the upper parts of the middle module and the end modules are both provided with wear-resistant layers. The wear-resistant layer adopts high-energy beam laser surfacing, can control heat input, has good forming effect and small deformation, has better hardness structure and service performance than the traditional manual surfacing, and the height of the surfacing layer, namely the height of the wear-resistant layer, is higher than the protrusion height of the hard alloy.

Preferably, the middle module and the end modules are both provided with welding grooves with trapezoidal sections, and the welding grooves are internally provided with matched hard alloys. The welding groove is trapezoidal, so that the capillary action in the welding process is guaranteed, the loss of the molten brazing filler metal is prevented, the hard alloy is fixed, and the brazing rate is improved.

The preferred, the tip module includes left end portion module, left end portion module includes left riser, left riser below right side is connected with left diaphragm, be provided with left diaphragm connecting hole on the left diaphragm.

The preferred, the tip module includes right end module, right end module includes right riser, right riser top is connected with right diaphragm to the left, be provided with right diaphragm connecting hole on the right diaphragm.

Preferably, the middle module is in a step shape and comprises an upper plate and a lower plate which are connected, an upper plate connecting hole is formed in the lower portion of the upper plate, and a lower plate connecting hole is formed in the lower plate.

Preferably, first chamfers are arranged on two sides of the opening part of the welding groove, and second chamfers are arranged on the top end of the hard alloy. Therefore, the guiding performance of the flowing silver solder is improved, the supplement of the solder is facilitated, and the filling rate of a soldered joint is increased;

preferably, a first included angle of 2 degrees is formed between adjacent hard alloy central lines.

Preferably, a left hard alloy is arranged on the left vertical plate, and a second included angle of 0.5 degrees or 1 degree is formed between the center line of the left hard alloy and the left edge of the left end module.

Preferably, a right hard alloy is arranged on the right vertical plate, and a third included angle of 0.5 degrees or 1 degrees is formed between the center line of the right hard alloy and the right edge of the right end module.

The utility model has the advantages that: the utility model discloses be favorable to the scale production, satisfy the demand of producing different angle antifriction plates simultaneously, strengthened welding seam intensity, reduce carbide and fall a risk, high energy beam laser cladding build-up welding wearing layer has reduced the influence of heat affected zone, and hardness is higher than traditional welding, increases the wearability, adapts to standardized production.

Drawings

FIG. 1 is a schematic structural view of example 1.

Fig. 2 is a schematic perspective view of embodiment 1.

Fig. 3 is a schematic structural view of a left end module of embodiment 1.

Fig. 4 is a schematic structural view of a right end module in embodiment 1.

Fig. 5 is a schematic diagram of the structure of an intermediate module in embodiment 1.

FIG. 6 is a schematic structural view of embodiment 1.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and examples, wherein it is noted that, in the description of the invention, the terms "upper", "lower", "left", "right", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular manner, and therefore should not be construed as limiting the present invention. The terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Example 1

As shown in fig. 1 to 2, the wear-resistant plate structure for the segmented modular shield tunneling machine comprises at least one middle module 2, and both ends of the middle module are connected with end modules. The end modules comprise a left end module 3 and a right end module 1. The present embodiment includes two connected middle modules 2, a left end module 3 is connected to the left side of the left middle module 2, and a right end module 1 is connected to the right end of the right middle module 2. In this embodiment, the middle module 2 and the end modules are both steel substrates.

As shown in fig. 2 to 5, the left end module 3 includes a left vertical plate 31, a left horizontal plate 32 is connected to the right below the left vertical plate 31, and a left horizontal plate connecting hole 321 is formed in the left horizontal plate 32. The right end module 1 comprises a right vertical plate 11, a right transverse plate 12 is connected to the left above the right vertical plate 11, and a right transverse plate connecting hole 121 is formed in the right transverse plate 12. The middle module 2 is stepped and includes an upper plate 21 and a lower plate 22 connected to each other, an upper plate connection hole (not shown) is formed at a lower portion of the upper plate 21, and a lower plate connection hole 221 is formed in the lower plate 22. Based on the above arrangement, when connecting, the upper plate 21 is placed above the left cross plate 32, and the pin 6 passes through the left cross plate connecting hole 321 and the upper plate connecting hole (not shown), so that the left end module 3 and the middle module 2 are connected in a positioning manner. The connections between the middle modules 2 are also connected by means of pins 6, the lower plate 22 of the middle module on the left being connected by means of pins 6 to the upper plate of the middle module 2 on the right. The lower plate 22 of the rightmost middle module 2 is connected to the right cross plate 12 and is connected to the right cross plate connecting hole 121 by the pin 6 passing through the lower plate connecting hole 221. All the connecting holes are also positioning holes, so that the connection positioning between the middle modules and the end modules is ensured.

Of course, all the connecting holes in the utility model can be also set as screw holes, and all the connections are connected through bolts.

In this embodiment, the middle module 2 and the end modules are provided with wear resistant layers 7 on the upper portions thereof. The middle module 2 and the end module are both provided with welding grooves 9, the cross sections of the welding grooves 9 are trapezoidal, and both sides of the opening parts of the welding grooves 9 are provided with first chamfers which are C0.5 in the embodiment. The welding groove 9 is internally provided with a matched hard alloy 8, and the top end of the hard alloy 8 is provided with a second chamfer angle which is 2.5 in the embodiment. The hard alloy 8 is made of YG 10-YG 13 according to the geological requirements, so that the comprehensive requirements of geological adaptability and wear resistance are ensured. The central lines of the adjacent hard alloys 8 form a first included angle alpha of 2 degrees. A left hard alloy 81 is arranged on the left vertical plate 31, and a second included angle beta of 0.5 degrees is formed between the center line of the left hard alloy 81 and the left edge of the left end module 3. A right hard alloy 82 is arranged on the right vertical plate 11, and a third included angle gamma of 0.5 degrees is formed between the central line of the right hard alloy 82 and the right edge of the right end module 1. Therefore, the embodiment can form a 7-degree modular wear-resistant plate structure for the shield machine.

Example 2

As shown in fig. 6, the basic structure of embodiment 2 is the same as that of embodiment 1, except that embodiment 2 includes 3 connected middle modules 2, and the center line of the left cemented carbide 81 and the left edge of the left end module 3 form a second included angle β of 1 °, and the center line of the right cemented carbide 82 and the right edge of the right end module 1 form a third included angle γ of 0.5 °. Therefore, the embodiment can form a 10-degree modular wear-resistant plate structure for the shield machine.

The utility model has the advantages of, according to the modularization shield machine antifriction plate demand of different angles, can adopt middle module 2 and left end portion module 3, right end portion module 1 to make up at random, can produce the antifriction plate of different angles (as 7, 9, 11, 13 etc.), need not again to different shield machines types, produce the antifriction plate of different angles, it is all very convenient when maintenance, use, production.

The foregoing has described in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations can be devised by those skilled in the art in light of the teachings of the present invention without undue experimentation. Therefore, the technical solutions that can be obtained by a person skilled in the art through logic analysis, reasoning or limited experiments based on the prior art according to the concepts of the present invention should be within the scope of protection defined by the claims.

Claims

1. The utility model provides a sectional type modularization shield constructs machine wear-resisting plate structure, characterized by: the device comprises at least one middle module (2), wherein end modules are connected to two ends of the middle module (2);

and the upper parts of the middle module (2) and the end module are both provided with wear-resistant layers (7).

2. The wear plate structure for a segmented modular shield tunneling machine according to claim 1, wherein: the middle module (2) and the end modules are both provided with welding grooves (9) with trapezoidal sections, and the welding grooves (9) are internally provided with matched hard alloys (8).

3. The wear plate structure for a segmented modular shield tunneling machine according to claim 1, wherein: the end portion module comprises a left end portion module (3), the left end portion module (3) comprises a left vertical plate (31), a left transverse plate (32) is connected to the right side of the lower portion of the left vertical plate (31), and a left transverse plate connecting hole (321) is formed in the left transverse plate (32).

4. The wear plate structure for a segmented modular shield tunneling machine according to claim 1, wherein: the end part module comprises a right end part module (1), the right end part module (1) comprises a right vertical plate (11), a right transverse plate (12) is connected to the left above the right vertical plate (11), and a right transverse plate connecting hole (121) is formed in the right transverse plate (12).

5. The wear plate structure for a segmented modular shield tunneling machine according to claim 1, wherein: the middle module (2) is in a step shape and comprises an upper plate (21) and a lower plate (22) which are connected, an upper plate connecting hole is formed in the lower portion of the upper plate (21), and a lower plate connecting hole (221) is formed in the lower plate (22).

6. The wear plate structure for the segmented modular shield tunneling machine according to claim 2, wherein: and two sides of the opening part of the welding groove (9) are provided with first chamfers, and the top end of the hard alloy (8) is provided with a second chamfer.

7. The wear plate structure for the segmented modular shield tunneling machine according to claim 2, wherein: and a first included angle alpha of 2 degrees is formed between the central lines of the adjacent hard alloys (8).

8. The wear plate structure for the segmented modular shield tunneling machine according to claim 3, wherein: the left vertical plate (31) is provided with a left hard alloy (81), and the center line of the left hard alloy (81) and the left edge of the left end module (3) form a second included angle beta of 0.5 degrees or 1 degree.

9. The wear plate structure for the segmented modular shield tunneling machine according to claim 4, wherein: the right vertical plate (11) is provided with a right hard alloy (82), and the center line of the right hard alloy (82) and the right edge of the right end module (1) form a third included angle gamma of 0.5 degree or 1 degree.