阅读说明：本技术 一种用于盾构地下对接的管片拼装注浆一体机 (Segment assembling and grouting all-in-one machine for shield underground butt joint ) 是由 尹清锋 陈星欣 王春河 何明高 程跃胜 韩维畴 郭力群 于 2021-09-01 设计创作，主要内容包括：本发明提供了一种用于盾构地下对接的管片拼装注浆一体机,包括管片拼装机、第一台车、第二台车、注浆装置、动力装置及防松动装置；所述第一台车的两端分别连接所述第二台车及管片拼装机；所述第一台车内设置有所述注浆装置,所述第二台车内设置有所述动力装置；管片拼装机包括环向回转装置、轴向平移装置、径向升降装置以及抓取装置；应用本技术方案可实现解决盾构地下对接预制管片的拼装、壁后同步注浆以及管片松动等问题。(The invention provides a duct piece assembling and grouting integrated machine for shield underground butt joint, which comprises a duct piece assembling machine, a first trolley, a second trolley, a grouting device, a power device and an anti-loosening device, wherein the first trolley is connected with the second trolley; the two ends of the first trolley are respectively connected with the second trolley and the segment erector; the grouting device is arranged in the first trolley, and the power device is arranged in the second trolley; the segment erector comprises a circumferential rotating device, an axial translation device, a radial lifting device and a grabbing device; by applying the technical scheme, the problems of splicing of shield underground butt joint prefabricated duct pieces, synchronous grouting after walls, duct piece loosening and the like can be solved.)

1. A segment assembling and grouting integrated machine for shield underground butt joint is characterized by comprising a segment assembling machine, a first trolley, a second trolley, a grouting device, a power device and an anti-loosening device;

the two ends of the first trolley are respectively connected with the second trolley and the segment erector; the grouting device is arranged in the first trolley, and the power device is arranged in the second trolley;

the segment erector comprises a circumferential rotating device, an axial translation device, a radial lifting device and a grabbing device; the annular rotating device comprises two first driving pieces which are symmetrically arranged; the annular rotating device also comprises a fixed ring, a rotating support, a rotating ring and a counterweight; the rotary motion is transmitted to the small gear from the first driving piece through the spline link and then transmitted to the whole rotary ring through the large gear; the axial translation device comprises two translation oil cylinders, a joist and a sliding sleeve; the axial translation device is connected to the rotating ring through a bolt to realize the connection with the annular rotating device; the outermost side of the axial translation device is provided with a joist, and a translation oil cylinder and a sliding sleeve are pivoted above the joist;

the radial lifting device is connected to the axial translation device through a bolt; cylindrical guide posts are symmetrically arranged on the left side and the right side of the radial lifting device, and a lifting oil cylinder and a sleeve are arranged outside the cylindrical guide posts; a connecting arm is arranged below the cylindrical guide post, and the gripping device is mainly connected with the radial lifting device through the connecting arm; the gripping device mainly comprises four fine adjustment oil cylinders and a lifting appliance; the movement of the four fine adjustment oil cylinders is independent, and the stretching amount of the four fine adjustment oil cylinders can be controlled respectively.

2. The integrated pipe piece assembling and grouting machine for shield underground docking according to claim 1, wherein the integrated pipe piece assembling and grouting machine comprises a pipe piece assembling and grouting machine body; the grouting device comprises a grouting tank, a grouting pump, a grouting pipeline and a main control room; the grouting tank and the grouting pump are arranged on one side of the first trolley, and the main control room is arranged on the other side of the first trolley.

3. The integrated pipe piece assembling and grouting machine for shield underground docking according to claim 2, wherein the integrated pipe piece assembling and grouting machine comprises a pipe piece assembling and grouting machine body; and a grouting pump with hydraulic drive pumps double grout into corresponding grouting points, and injects the double grout into an annular gap between the excavation diameter and the outer diameter of the segment through a grouting pipeline.

4. The segment assembling and grouting all-in-one machine for shield underground docking according to claim 3, wherein the segment assembling and grouting all-in-one machine comprises a shell, a shell body, a plurality of segments, a plurality of sealing rings and a plurality of sealing rings; the main control room comprises a display system, an operating system and an accessory system; the display system comprises a computer display screen and a plurality of PLC indicator lamps; the operating system comprises a control handle and a console control box.

5. The integrated pipe piece assembling and grouting machine for shield underground docking according to claim 1, wherein the integrated pipe piece assembling and grouting machine comprises a pipe piece assembling and grouting machine body; the power device comprises a hydraulic pump station including a hydraulic oil tank and a power distribution cabinet; the hydraulic oil tank and the hydraulic pump station provide pressure oil for the segment erector, the grouting pump and the anti-loosening equipment; the power distribution cabinet provides power for all hydraulic oil pumps.

6. The integrated pipe piece assembling and grouting machine for shield underground docking according to claim 1, wherein the integrated pipe piece assembling and grouting machine comprises a pipe piece assembling and grouting machine body; the anti-loosening device comprises a central connecting block, a connecting rod piece, a radial supporting ring, an axial supporting ring, a radial telescopic oil cylinder, an axial jack, a vacuum chuck, vacuumizing equipment and a connecting beam.

7. The segment assembling and grouting all-in-one machine for shield underground docking according to claim 6, wherein the segment assembling and grouting all-in-one machine comprises a shell, a shell body, a plurality of segments, a plurality of sealing rings and a plurality of sealing rings; when the segment erector works, the radial telescopic oil cylinder is firstly jacked in the direction of the shield shell to enable the vacuum sucker and the inner wall of the shield shell to be tightly attached, then the vacuum equipment is started to suck, negative air pressure is generated in the sucker, and the anti-loosening device is fixed in the tunnel.

8. The integrated pipe piece assembling and grouting machine for shield underground docking according to claim 7, wherein the integrated pipe piece assembling and grouting machine comprises a pipe piece assembling and grouting machine body; and applying jacking force on the spliced pipe sheets and the anti-loosening device through an axial jack.

9. The integrated pipe piece assembling and grouting machine for shield underground docking according to claim 1, wherein the integrated pipe piece assembling and grouting machine comprises a pipe piece assembling and grouting machine body; the first trolley and the second trolley comprise a portal steel structure frame and three groups of travelling wheels arranged at the bottom of the portal steel structure; the first trolley and the second trolley move forwards on the laid trolley rails, and the battery car provides forward power.

10. The integrated pipe piece assembling and grouting machine for shield underground docking according to claim 1, wherein the integrated pipe piece assembling and grouting machine comprises a pipe piece assembling and grouting machine body; the segment erector is connected to a front end frame of the first trolley through bolts, and the segment erector moves back and forth along the axis of the tunnel.

Technical Field

The invention relates to the field of shield tunneling machines, in particular to a segment assembling and grouting all-in-one machine for shield underground butt joint.

Background

Under the conditions of large span, short working period and complex geology, the shield underground docking technology of 'opposite propulsion, underground docking and shell abandoning disassembly' becomes a new development trend. The secondary lining of the shield butt joint section mainly has two forms of cast-in-place duct pieces and prefabricated duct pieces at present. Compared with the prior art, the secondary lining form of the prefabricated duct piece has the characteristics of better anti-permeability performance, shorter construction period, lower labor cost and the like. However, after the shield tunneling machine abandons the shell and disintegrates, the shield tunneling machine host computer and the prefabricated section piece of butt joint section position department can't carry out the execution of secondary lining according to the mode of assembling of original shield tail section piece and do, this has brought the operational difficulty for the actual assembly of prefabricated section piece. On the other hand, after the prefabricated section of jurisdiction of shield structure host computer and butt joint section position department is assembled, there is certain space in the section of jurisdiction outside and shield shell inner wall, needs in time to pack the space well to guarantee the waterproof nature and the stability in tunnel. Meanwhile, in the splicing process of the host machine of the shield machine and the prefabricated duct pieces of the butt joint section, the problems of secondary lining stress relaxation and the like are easily caused due to the lack of the pushing action of the pushing jack, and the opening amount between the duct pieces is increased. Therefore, a segment assembling and grouting integrated machine for the shield underground butt joint section needs to be researched to solve the problems of assembling of prefabricated segments, synchronous grouting after walls, segment loosening and the like.

Chinese patent (application number: CN201910482621.0, published as 2020-12-04) discloses a movable shield segment erector, which realizes the horizontal movement of the segment erector through a truck-mounted transportation device, but the travelling wheels of a truck in a tunnel are difficult to keep stable forward on a flat road surface, so that the segment erector can not keep a fixed posture, and the splicing precision of secondary lining is influenced. Chinese patent (application number: CN202020660289.0, published as 2020-11-20) discloses a segment assembling device after a tunnel dismantling machine, wherein the front end and the rear end of the segment assembling machine are respectively provided with a supporting structure and a wheel pair matched with a rail, in order to enable the segment assembling machine to move horizontally, the rail is required to be arranged at the position where segments are not spliced, so that the space for installing subsequent segments is occupied, and inconvenience is brought to the construction of secondary lining. On the other hand, neither of these patents relates to a solution to both the problems of loose duct pieces and back-grouting.

Disclosure of Invention

The invention aims to provide a duct piece assembling and grouting integrated machine for shield underground butt joint, which solves the problems of assembling of shield underground butt joint prefabricated duct pieces, synchronous grouting after walls, duct piece loosening and the like.

In order to solve the technical problem, the invention provides a segment assembling and grouting all-in-one machine for shield underground butt joint, which comprises a segment assembling machine, a first trolley, a second trolley, a grouting device, a power device and an anti-loosening device, wherein the segment assembling machine is connected with the first trolley;

the two ends of the first trolley are respectively connected with the second trolley and the segment erector; the grouting device is arranged in the first trolley, and the movable device is arranged in the second trolley;

the segment erector comprises a circumferential rotating device, an axial translation device, a radial lifting device and a grabbing device; the annular rotating device comprises two first driving pieces which are symmetrically arranged; the annular rotating device also comprises a fixed ring, a rotating support, a rotating ring and a counterweight; the rotary motion is transmitted to the small gear from the first driving piece through the spline link and then transmitted to the whole rotary ring through the large gear; the axial translation device comprises two translation oil cylinders, a joist and a sliding sleeve; the axial translation device is connected to the rotating ring through a bolt to realize the connection with the annular rotating device; the outermost side of the axial translation device is provided with a joist, and a translation oil cylinder and a sliding sleeve are pivoted above the joist;

the radial lifting device is connected to the axial translation device through a bolt; cylindrical guide posts are symmetrically arranged on the left side and the right side of the radial lifting device, and a lifting oil cylinder and a sleeve are arranged outside the cylindrical guide posts; a connecting arm is arranged below the cylindrical guide post, and the gripping device is mainly connected with the radial lifting device through the connecting arm; the gripping device mainly comprises four fine adjustment oil cylinders and a lifting appliance; the movement of the four fine adjustment oil cylinders is independent, and the stretching amount of the four fine adjustment oil cylinders can be controlled respectively.

In a preferred embodiment; the grouting device comprises a grouting tank, a grouting pump, a grouting pipeline and a main control room; the grouting tank and the grouting pump are arranged on one side of the first trolley, and the main control room is arranged on the other side of the first trolley.

In a preferred embodiment; and a grouting pump with hydraulic drive pumps double grout into corresponding grouting points, and injects the double grout into an annular gap between the excavation diameter and the outer diameter of the segment through a grouting pipeline.

In a preferred embodiment; the main control room comprises a display system, an operating system and an accessory system; the display system comprises a computer display screen and a plurality of PLC indicator lamps; the operating system comprises a control handle and a console control box.

In a preferred embodiment; the power device comprises a hydraulic pump station including a hydraulic oil tank and a power distribution cabinet; the hydraulic oil tank and the hydraulic pump station provide pressure oil for the segment erector, the grouting pump and the anti-loosening equipment; the power distribution cabinet provides power for all hydraulic oil pumps.

In a preferred embodiment; the anti-loosening device comprises a central connecting block, a connecting rod piece, a radial supporting ring, an axial supporting ring, a radial telescopic oil cylinder, an axial jack, a vacuum chuck, vacuumizing equipment and a connecting beam.

In a preferred embodiment; when the segment erector works, the radial telescopic oil cylinder is firstly jacked in the direction of the shield shell to enable the vacuum sucker and the inner wall of the shield shell to be tightly attached, then the vacuum equipment is started to suck, negative air pressure is generated in the sucker, and the anti-loosening device is fixed in the tunnel.

In a preferred embodiment; and applying jacking force on the spliced pipe sheets and the anti-loosening device through an axial jack.

In a preferred embodiment; the first trolley and the second trolley comprise a portal steel structure frame and three groups of travelling wheels arranged at the bottom of the portal steel structure; the first trolley and the second trolley move forwards on the laid trolley rails, and the battery car provides forward power.

In a preferred embodiment; the segment erector is connected to a front end frame of the first trolley through bolts, and the segment erector moves back and forth along the axis of the tunnel.

Compared with the prior art, the technical scheme of the invention has the following beneficial effects:

1. according to the segment assembling and grouting all-in-one machine for shield underground butt joint, the segment assembling machine is connected with the front end of the trolley, the trolley track paved at the position of the assembled segments can integrally and stably move forward, the segment assembling precision can be guaranteed, and the space of the un-assembled segments is not occupied.

2. The segment assembling and grouting all-in-one machine for shield underground butt joint provides the segment assembling machine with horizontal movement freedom along the axis of a tunnel through the trolley, can reduce the length of a joist in a horizontal displacement device of the segment assembling machine, and reduces the processing and manufacturing cost.

3. The segment assembling and grouting integrated machine for shield underground butt joint can solve the problems of synchronous grouting and secondary grouting after segment splicing behind the wall and the like through the integrated grouting device arranged on the trolley.

4. The segment assembling and grouting all-in-one machine for shield underground butt joint can be used as a stress balancing device of a segment assembling machine through the grouting device, the main control chamber and the vacuumizing equipment which are arranged on the trolley, and the instability of the mechanism caused by overlarge overturning moment when the segments are translated outwards is prevented.

5. The segment assembling and grouting all-in-one machine for shield underground butt joint can apply axial jacking force to the spliced segments through the anti-loosening device, so that the stress relaxation phenomenon of the segments is prevented, and the opening amount among the segments is reduced.

Drawings

FIG. 1 is a schematic structural diagram of a segment assembling and grouting all-in-one machine for shield underground docking in the preferred embodiment of the invention;

FIG. 2 is a schematic structural view of a segment erector in accordance with a preferred embodiment of the present invention;

FIG. 3 is a schematic diagram showing the positional relationship between the rotating device and the translation device of the segment erector in accordance with the preferred embodiment of the present invention;

FIG. 4 is a schematic diagram showing the relationship between the radial lifting device and the gripping device of the segment erector in a preferred embodiment of the present invention;

FIG. 5 is a side view (one) of the axial side of the segment locking device in the preferred embodiment of the present invention;

FIG. 6 is a side view of the axial side of the segment locking device in the preferred embodiment of the present invention;

FIG. 7 is an isometric view of a first trolley and grouting device in accordance with a preferred embodiment of the invention;

fig. 8 is an isometric view of a second trolley and power plant in a preferred embodiment of the invention.

Detailed Description

The invention is further described with reference to the following figures and detailed description.

A segment 573 splicing and grouting integrated machine for shield underground butt joint refers to figures 1 to 8 and comprises a segment splicing machine 5, a first trolley 1, a second trolley 2, a grouting device, a power device and an anti-loosening device 6; the two ends of the first trolley 1 are respectively connected with the second trolley 2 and the segment erector 5; the grouting device is arranged in the first trolley 1, and the movable device is arranged in the second trolley 2; and the segment erector 5 is connected to the front end frame of the first trolley 1 through bolts, so that the erector can move back and forth along the axis of the tunnel.

The segment erector 5 comprises a circumferential rotating device, an axial translation device, a radial lifting device 56 and a grabbing device 57; the annular rotating device comprises two first driving pieces 51 which are symmetrically arranged; the annular rotating device further comprises a fixed ring 52, a rotating support 53, a rotating ring 54 and a counterweight 55; the rotational movement is transmitted from the first drive member 51 to the pinion gear through the spline link, and then to the entire rotational ring 54 through the large gear; the axial translation device comprises two translation oil cylinders 50, a joist 58 and a sliding sleeve 59; the axial translation device is connected to the rotating ring 54 through a bolt to realize connection with the annular rotation device; the outermost side of the axial translation device is provided with a joist 58, and the upper part of the axial translation device is pivoted with a translation oil cylinder 50 and a sliding sleeve; since the first cart 1 and the second cart 2 can provide a large degree of freedom of horizontal movement for the segment erector 5, the length of the joist 58 can be appropriately shortened as compared with the conventional segment erector 5, so as to reduce the manufacturing cost. Specifically, the first driving member 51 is specifically a hydraulic motor, and the two hydraulic motors are mounted above the assembling machine through bolts and symmetrically distributed.

The radial lifting device 56 is connected to the axial translation device through bolts; cylindrical guide columns 561 are symmetrically arranged on the left side and the right side of the radial lifting device 56, and lifting oil cylinders 563 and sleeves 562 are installed outside the cylindrical guide columns 561; a connecting arm 564 is mounted below the cylindrical guide column 561, and the gripping device 57 is mainly connected with the radial lifting device 56 through the connecting arm 564; the gripping device 57 mainly comprises four fine adjustment oil cylinders 572 and a lifting appliance 571; the movements of the four fine adjustment cylinders 572 are independent from each other, and the amounts of expansion and contraction of the four fine adjustment cylinders 572 can be controlled respectively.

The grouting device comprises a grouting tank 4, a grouting pump 3, a grouting pipeline and a main control room 8; the grouting tank 4 and the grouting pump 3 are arranged on one side of the first trolley 1, and the main control room 8 is arranged on the other side of the first trolley 1.

A hydraulically driven grouting pump 3 is provided to pump the double slurry into the corresponding grouting points and through the grouting pipe into the annular gap between the excavation diameter and the outer diameter of the segment 573.

The main control room 8 comprises a display system, an operating system and an accessory system; the display system comprises a computer display screen and a plurality of PLC indicator lamps; the operating system comprises a control handle and a console control box. The control device can control the assembling of the duct pieces 573, the grouting pressure, the grouting speed, the grouting amount, the magnitude of the jacking force exerted by the anti-loosening axial jacks 63 and the radial jacks 68, and the like.

The power device comprises a hydraulic pump station 10 including a hydraulic oil tank and a power distribution cabinet 9; the hydraulic oil tank and the hydraulic pump station 10 provide pressure oil for the segment erector 5, the grouting pump 3 and the anti-loosening equipment; the power distribution cabinet 9 provides power for all hydraulic oil pumps.

The anti-loosening device 6 comprises a central connecting block 67, a connecting rod 66, a radial supporting ring 65, an axial supporting ring 64, a radial telescopic oil cylinder 61, an axial jack 63, a vacuum chuck 68, a vacuumizing device 11 and a connecting beam 7.

When the segment erector 5 operates, the radial telescopic oil cylinder 61 is firstly pushed into the shield shell direction to enable the vacuum suction cup 68 to be attached to the inner wall of the shield shell, then the vacuumizing device 11 is started to suck, negative air pressure is generated in the vacuum suction cup 68, and the anti-loosening device 6 is fixed in the tunnel.

The jacking force is applied to the spliced pipe sheets and the anti-loosening device 6 through the axial jacks 63, so that the problem of stress relaxation of the pipe sheets 573 is solved.

The first trolley 1 and the second trolley 2 comprise a portal steel structure frame and three groups of travelling wheels 12 arranged at the bottom of the portal steel structure; the first trolley 1 and the second trolley 2 move forwards on the laid trolley rails, and the battery car provides forward power.

The process of splicing segments 573 using the segment 573 splicing and grouting all-in-one machine will now be described in detail:

1. segment 573 splicing, comprising:

segment erector 5 adopts the bolt head and snatchs groove matched with mode and snatchs section of jurisdiction 573, in order to guarantee the stationarity of concatenation in-process, need stretch out the hydro-cylinder in four corners, supports section of jurisdiction 573 and prevents to take place to become flexible. Meanwhile, the oil cylinder can prevent the segment 573 from shaking, and can also realize the fine adjustment function of the segment 573. The rotating device, the translating device and the lifting device can provide the tube sheets 573 with freedom degrees in other directions, so that the assembly of the tube sheets 573 at different positions is met.

2. Segment 573 behind-the-wall simultaneous grouting comprises:

the grouting device above the first trolley 1 performs horizontal grouting on the gap between the rear part of the segment 573 wall and the inner wall of the shield shell through the grouting pump 3 so as to ensure the waterproofness and stability of the segment 573. The grouting amount, grouting pressure and grouting speed all meet the requirements of corresponding subway construction specifications.

3. Segment 573 anti-loosening treatment comprising:

when the duct pieces 573 are assembled, the radial telescopic oil cylinder 61 is firstly pushed in towards the shield shell to enable the vacuum suction cup 68 to be attached to the inner wall of the shield shell, and then the vacuum pumping equipment is started to pump, so that negative air pressure is generated in the suction cup, and the anti-loosening device 6 is fixed in the tunnel. Finally, jacking force is applied to the spliced segments 573 through the axial jacks 63, and stress relaxation of the segments 573 is prevented.

According to the segment 573 splicing and grouting all-in-one machine for shield underground docking, the segment splicing machine 5 is connected with the front end of the trolley, so that the segment 573 splicing all-in-one machine can integrally and stably move forward on the trolley rail paved at the position of the spliced segment 573, splicing accuracy of the segment 573 can be guaranteed, and the space of the segment 573 which is not spliced is not occupied. The segment 573 splicing and grouting all-in-one machine for shield underground docking provides the segment splicing machine 5 with horizontal movement freedom along the axis of the tunnel through the trolley, so that the length of the joist 58 in the horizontal displacement device of the segment splicing machine 5 can be reduced, and the processing and manufacturing cost is reduced. The integrated grouting device arranged on the trolley can solve the problems of synchronous grouting, secondary grouting and the like behind the wall after splicing of the duct pieces 573. The segment 573 assembling and grouting all-in-one machine for shield underground butt joint can be used as a stress balancing device of the segment assembling machine 5 through the grouting device arranged on the trolley, the main control chamber 8 and the vacuumizing equipment 11, and the instability of the mechanism caused by overlarge overturning moment when the segment 573 is translated outwards is prevented. According to the integrated machine for assembling and grouting the segments 573 for shield underground butt joint, disclosed by the invention, through the anti-loosening device 6, axial jacking force can be applied to the assembled segments 573, the stress relaxation phenomenon of the segments 573 is prevented, and the opening amount among the segments is reduced.

The above description is only a preferred embodiment of the present invention, but the design concept of the present invention is not limited thereto, and any person skilled in the art can make insubstantial changes in the technical scope of the present invention within the technical scope of the present invention, and the actions infringe the protection scope of the present invention are included in the present invention.