阅读说明：本技术 一种盾构螺旋机断轴修复快速接头及方法 (Quick joint and method for repairing broken shaft of shield screw machine ) 是由 张广鹏 杨立伟 李纯龙 刘世雨 尚华梁 韩志永 夏立辉 于 2019-09-23 设计创作，主要内容包括：本发明公开了一种盾构螺旋机断轴修复快速接头和方法,快速接头包括接头主体,所述接头主体的两端各凸设有插头,所述插头与螺旋机中轴的中心轴孔相配合。本发明的有益效果：可以保证盾构土仓的稳定,防止在修复过程中出现盾构螺旋机涌水、涌沙等安全问题；通过在断轴处的设置盾构螺旋机断轴修复快速接头,可实现断轴的修复,简单快捷,提高了使用寿命和修复质量,保证盾构机掘进的连续性和稳定性,生产效率得到提升。(The invention discloses a quick joint for repairing broken shafts of a shield screw machine and a method. The invention has the beneficial effects that: the stability of the shield soil bin can be ensured, and the safety problems of water burst, sand burst and the like of the shield screw machine in the repairing process are prevented; the broken shaft repairing quick joint of the shield screw machine is arranged at the broken shaft, so that the broken shaft can be repaired simply and quickly, the service life and the repairing quality are improved, the continuity and the stability of tunneling of the shield screw machine are ensured, and the production efficiency is improved.)

1. The quick joint for repairing the broken shaft of the shield screw machine is characterized by comprising a joint main body (4), wherein plugs (5) are arranged at two ends of the joint main body (4) in a protruding mode respectively, and the plugs (5) are matched with a central shaft hole of a middle shaft (3) of the screw machine.

2. The shield screw machine broken shaft repair quick joint according to claim 1, characterized in that the joint main body (4) is made of round steel.

3. The shield screw machine broken shaft repair quick joint according to claim 1, wherein the cross-sectional shape of the plug (5) is a regular hexagon.

4. The quick joint for repairing the broken shaft of the shield screw machine according to claim 1, wherein the material of the joint main body (4) and the material of the screw machine center shaft (3) are both 35 SiMn.

5. The quick connector for repairing broken shaft of shield screw machine according to claim 1, characterized in that the length of the plug (5) is 10cm, and the distance between the two plugs (5) is 1 cm.

6. The method for repairing the broken shaft of the shield screw machine by adopting the broken shaft repairing quick joint of the shield screw machine according to claim 1 is characterized by comprising the following steps of:

s1, when the middle shaft (3) of the shield screw machine is broken into two sections, inert slurry and water glass are injected into the soil bin and the bottom of the shield screw machine in time to realize rapid water stop and pressure maintaining;

s2, adjusting the angle of the middle shaft (3) of the two sections of screw machines to enable the screw machine blades (2) on the middle shaft (3) of the two sections of screw machines to be smoothly connected at the fracture position along the screw direction;

s3, placing the broken shaft repair quick connector of the shield screw machine between the two sections of screw machine center shafts (3), and inserting a plug (5) into a center shaft hole of the screw machine center shaft (3) of the corresponding section to realize quick connection;

s4, a groove (7) is formed in the joint of the broken shaft repair quick connector of the shield spiral machine and the middle shaft (3) of the spiral machine, and the groove is fully welded.

7. The shield-tunneling-auger-axial-fracture-restoration method according to claim 6, wherein in S1, the inert slurry is a mixed solution of sand, fly ash, bentonite and water.

8. The shield spiral shaft breaking repair method according to claim 6, wherein the cross-sectional shape of the plug (5) and the cross-sectional shape of the central shaft hole are both regular hexagons.

9. The method for repairing a broken shaft of a shield screw machine according to claim 6, wherein in S1, the joint of the two sections of screw machine central shafts (3) and the periphery thereof are cleaned after water and pressure are stopped and maintained, dregs and sewage are cleaned, the screw machine blades (2) and the screw machine central shafts (3) are cleaned by clean water, and the air welding is performed for drying.

10. The shield spiral shell shaft breaking repair method according to claim 6, wherein the material of the joint main body (4) and the material of the spiral shell shaft (3) are both 35 SiMn.

Technical Field

The invention relates to the technical field of shield screw machine broken shaft repair, in particular to a shield screw machine broken shaft repair quick connector and a shield screw machine broken shaft repair quick method.

Background

The shield machine construction technology has been in the history of decades in China, and has become mature through the rapid development of the last decade. The shield constructs the construction and becomes more and more specialized in China, and the stratum of the shape look in each city is faced, and the pressure that the shield spiral shell screwing machine bore is also different, but the earth storehouse can pile up a large amount of boulders in rich water boulder stratum shield tunnel construction, and boulders can produce wearing and tearing to the spiral shell screwing machine axis of shield spiral shell screwing machine, and then produce disconnected axle phenomenon easily, influence normal work and production.

According to the survey of the service condition of the shield screw machine in the domestic rail transit, the shield screw machine is very complicated to repair after the shaft is broken, and the construction period and the quality cannot be guaranteed.

An effective solution to the problems in the related art has not been proposed yet.

Disclosure of Invention

Aiming at the technical problems in the related art, the invention provides the broken shaft repair quick connector for the shield screw machine, which can realize quick repair of the broken shaft of the shield screw machine, greatly shorten the repair period and ensure normal work and production.

In order to achieve the technical purpose, the technical scheme of the invention is realized as follows:

the quick joint for repairing the broken shaft of the shield screw machine comprises a joint main body, wherein plugs are convexly arranged at two ends of the joint main body respectively and are matched with a central shaft hole of a middle shaft of the screw machine.

Further, the joint main body is made of round steel.

Further, the cross-sectional shape of the plug is a regular hexagon.

Furthermore, the material of the joint main body and the material of the middle shaft of the screw machine are both 35 SiMn.

Further, the length of the plug is 10cm, and the distance between the two plugs is 1 cm.

The invention also discloses a shield spiral shaft breaking repair method, which comprises the following steps:

s1, when the middle shaft of the shield screw machine is broken into two sections, injecting inert slurry and water glass into the soil bin and the bottom of the shield screw machine in time to realize rapid water stop and pressure maintaining;

s2, adjusting the angle of the middle shaft of the two sections of screw machines to enable the screw machine blades on the middle shaft of the two sections of screw machines to be smoothly connected at the fracture part along the screw direction;

s3, placing the broken shaft repair quick connector of the shield screw machine between the two sections of screw machine center shafts, and inserting a plug into a center shaft hole of the screw machine center shaft of the corresponding section to realize quick connection;

s4, grooving and full-welding the joint of the broken shaft repair quick connector of the shield spiral machine and the middle shaft of the spiral machine.

Further, in S1, the inert slurry is a mixed solution of sand, fly ash, bentonite, and water.

Furthermore, the cross-sectional shape of the plug and the cross-sectional shape of the central shaft hole are both regular hexagons.

Further, in S1, cleaning the joint and the periphery of the middle shaft of the two sections of the screw machine after water and pressure stopping, cleaning up the slag and the sewage, cleaning the screw machine blades and the middle shaft of the screw machine with clear water, and baking with gas welding.

Furthermore, the material of the joint main body and the material of the middle shaft of the screw machine are both 35 SiMn.

The invention has the beneficial effects that: the stability of the shield soil bin can be ensured, and the safety problems of water burst, sand burst and the like of the shield screw machine in the repairing process are prevented; the broken shaft repairing quick joint of the shield screw machine is arranged at the broken shaft, so that the broken shaft can be repaired simply and quickly, the service life and the repairing quality are improved, the continuity and the stability of tunneling of the shield screw machine are ensured, and the production efficiency is improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a cross-sectional view of a shield spiral machine according to an embodiment of the present invention;

FIG. 2 is a front view of a broken shaft repair quick coupling of a shield screw machine according to an embodiment of the invention;

FIG. 3 is a side view of a broken shaft repair quick coupling of a shield screw machine according to an embodiment of the invention;

fig. 4 is a schematic view of a broken shaft repair quick coupling of a shield spiral machine according to an embodiment of the invention in use.

In the figure:

1. a screw machine housing; 2. a screw machine blade; 3. a screw machine central shaft; 4. a connector body; 5. a plug; 6. a blade gap; 7. and (4) beveling.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments that can be derived by one of ordinary skill in the art from the embodiments given herein are intended to be within the scope of the present invention.

As shown in fig. 1 to 4, the quick joint for repairing broken shaft of shield screw machine according to the embodiment of the present invention includes a joint main body 4, wherein plugs 5 are respectively protruded from two ends of the joint main body 4, and the plugs 5 are matched with a central shaft hole of a central shaft 3 of the screw machine.

In one embodiment of the invention, the joint body 4 is made of round steel.

In one embodiment of the present invention, the cross-sectional shape of the plug 5 is a regular hexagon.

In an embodiment of the present invention, the material of the joint body 4 and the material of the screw machine central shaft 3 are both 35 SiMn.

In one embodiment of the present invention, the length of the plug 5 is 10cm, and the distance between two plugs 5 is 1 cm.

The invention also provides a shield spiral shell screw broken shaft repairing method, which comprises the following steps:

s1, when the middle shaft 3 of the shield screw machine is broken into two sections, injecting inert slurry and water glass into the soil bin and the bottom of the shield screw machine in time to realize rapid water stop and pressure maintaining;

s2, adjusting the angle of the middle shaft 3 of the two sections of screw machines to enable the screw machine blades 2 on the middle shaft 3 of the two sections of screw machines to be smoothly connected at the fracture part along the screw direction;

s3, placing the broken shaft repair quick connector of the shield screw machine between the two sections of screw machine center shafts 3, and inserting the plug 5 into the center shaft hole of the screw machine center shaft 3 of the corresponding section to realize quick connection;

s4, a groove 7 is arranged at the joint of the broken shaft repair quick connector of the shield spiral machine and the middle shaft 3 of the spiral machine and the joint is fully welded.

In one embodiment of the present invention, in S1, the inert slurry is a mixture of sand, fly ash, bentonite, and water.

In one embodiment of the present invention, the cross-sectional shape of the plug 5 and the cross-sectional shape of the central axial hole are both regular hexagons.

In an embodiment of the present invention, in S1, the joint and the periphery of the two sections of the screw machine central shaft 3 are cleaned after water and pressure are stopped and maintained, the residue and the sewage are cleaned, the screw machine blades 2 and the screw machine central shaft 3 are cleaned with clean water, and the air welding is performed to dry the blades.

In an embodiment of the present invention, the material of the joint body 4 and the material of the screw machine central shaft 3 are both 35 SiMn.

In order to facilitate understanding of the above-described embodiments of the present invention, the following detailed description of the embodiments of the present invention is provided by way of specific usage.

The shield spiral machine comprises a spiral machine shell 1, spiral machine blades 2 and a spiral machine middle shaft 3, wherein the spiral machine middle shaft 3 is penetrated through by a central shaft hole to form a hollow shaft, the section of the central shaft hole is in a regular hexagon shape, and the spiral machine blades 2 are fixed on the spiral machine middle shaft 3.

The quick joint for repairing the broken shaft of the shield spiral machine (hereinafter referred to as the quick joint) is made of round steel, the round steel is made of 35SiMn, plugs 5 are cut at two ends of the round steel, the cross section of each plug 5 is in a shape of a regular hexagon internally tangent to the cross section of the round steel, the length of each plug 5 is 10cm, the surface of each plug is smooth, the material is 35SiMn, and the distance between the two plugs is 1 cm. The quick connector is integrally processed at one time, and the size of the quick connector meets the size of the central shaft 3 of the screw machine.

The shield spiral shaft breaking repair method specifically comprises the following steps:

1) when the shaft 3 of the screw machine of the shield screw machine is broken (namely, the shaft is broken into two sections), water is quickly stopped and pressure is maintained by injecting inert slurry (namely, mixed liquid of sand, fly ash, bentonite and water) into the soil bin and the bottom of the screw machine and adding water glass, and the broken shaft is found through an inspection hole on the screw machine of the shield screw machine;

2) preparing a quick joint section made of 35SiMn (the material of the quick joint section is the same as that of the middle shaft 3 of the screw machine) and welding equipment;

3) cleaning the joint and the periphery of the middle shafts 3 of the two sections of screw machines, cleaning up the muck and the sewage, cleaning the blades 2 of the screw machines and the middle shafts 3 of the screw machines by clear water, and baking by gas welding;

4) adjusting the angle of the central shaft 3 of the screw machine until the screw machine blades 2 on the central shafts 3 of the two sections of screw machines are visually observed to be connected smoothly along the spiral direction, and adjusting the section of the central shaft 3 of the screw machine falling off after fracture as much as possible to ensure that the central shaft is positioned in the center of the pipeline;

5) put into fracture department with quick-operation joint through shield structure screw machine's flexible function, continue to adjust shield structure screw machine flexible messenger quick-operation joint respectively with two sections cracked screw machine axis 3 butt joints, until the round steel portion (being located between two plugs 5) on the quick-operation joint contacts with screw machine axis 3, the fracture department that the butt joint is good uses the gas planer to beat groove 7 and full weld through the professional, groove 7 beats on quick-operation joint's round steel portion, can form a segment blade breach 6 between the epaxial screw machine blade 2 in two sections screw machines.

In conclusion, by means of the technical scheme, the stability of the shield soil bin can be ensured, and the safety problems of water burst, sand burst and the like of the shield screw machine in the repairing process are prevented; the broken shaft repairing quick joint of the shield screw machine is arranged at the broken shaft, so that the broken shaft can be repaired simply and quickly, the service life and the repairing quality are improved, the continuity and the stability of tunneling of the shield screw machine are ensured, and the production efficiency is improved.

The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.