Grouting type cutter head of shield tunneling machine capable of penetrating through existing pipeline downwards

Abstract

The invention relates to the technical field of shield tunneling, in particular to a grouting type cutter head of a shield tunneling machine capable of penetrating an existing pipeline downwards, which comprises a shield tunneling machine shell and a cutter head, a placing groove is formed in the surface of the shield tunneling machine shell in a penetrating manner, a limiting groove and a connecting groove are formed in the outer surface of the shield tunneling machine shell, and a screw rod is fixedly connected to the inner side of the connecting groove; a connecting plate is connected to the inner side of the containing groove in an embedded mode, a limiting block and a connecting block are fixedly connected to the outer surface of the connecting plate, and a containing groove is formed in the inner side of the connecting groove. Under the connection of the control plate and the grouting pipe, the effect of regulating and controlling the acting length of the grouting pipe on the connecting plate is achieved, through the action of the grouting pipe and the slurry conveying pipe, the grouting effect is achieved, the grouting reinforcement performance during shutdown operation of the shield tunneling machine is improved, under the action of the protective cover, the plugging effect is achieved when the grouting pipe is inserted into soil, and the construction efficiency is improved. And soil is prevented from entering the grouting pipe, and the grouting use effect is improved.

Description

Technical Field

[0001] The invention relates to the technical field of shield machines, and in particular to a grouting cutter head of a shield machine that passes through an existing pipeline. Background Art

[0002] When the shield machine passes through an existing pipeline, there is already a pipeline above it. When the shield machine is shut down for maintenance, the contact part between the cutter head and the shield machine will collapse due to the influence of the shield tunnel and gravity, causing displacement and deformation of the existing pipeline, resulting in damage to the existing pipeline and affecting the safety performance of the shield operation. Summary of the invention

[0003] The purpose of the present invention is to provide a grouting cutterhead for a shield machine that passes under an existing pipeline, so as to solve the problem raised in the above-mentioned background technology that the contact portion between the cutterhead and the shield machine may collapse due to the influence of the shield tunnel and gravity, causing displacement and deformation of the existing pipeline, resulting in damage to the existing pipeline and affecting the safety performance of the shield operation.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a grouting cutter head of a shield machine that passes under an existing pipeline, comprising a shield machine casing and a cutter head, the surface of the shield machine casing is provided with a placement groove, the outer surface of the shield machine casing is provided with a limiting groove and a connecting groove, the inner side of the connecting groove is fixedly connected with a screw, the inner side of the placement groove is engaged with a connecting plate, the outer surface of the connecting plate is fixedly connected with a limiting block and a connecting block, the inner side of the connecting groove is provided with a receiving groove, the inner side of the receiving groove is fixedly connected with a supporting spring, the surface of the supporting spring is fixedly connected with a protective plate, the surface of the connecting plate is provided with a groove, and the inner side of the groove is engaged with a baffle, the inner side of the baffle A grouting pipe is connected to the side, and a control panel is fixedly connected to the surface of the grouting pipe, a fixed block is fixedly connected to the outer surface of the control panel, a grouting pipe is connected to the surface passage of the control panel, a through groove is opened on the surface of the grouting pipe, and a support block is fixedly connected to the inner side of the through groove, a protective cover is movably connected to the inner side of the through groove, a guide block is fixedly connected to the inner wall of the grouting pipe, a telescopic spring is fixedly connected to the inner side of the guide block, a telescopic cylinder is fixedly connected to the inner wall of the shield casing, a connecting rod is fixedly connected to the inner surface of the baffle, a compression spring is fixedly connected to the surface of the connecting rod, a resist column is sleeved on the outer surface of the connecting rod, and a positioning block is fixedly connected to the surface of the control panel.

[0005] Preferably, the limit blocks are in two groups connected to opposite sides of the connecting plate, the limit blocks are in abutment contact with the limit grooves, and the connecting blocks are in two groups oppositely connected to adjacent surfaces of the connecting plate and the limit blocks.

[0006] Preferably, the connecting block and the connecting groove are in abutment contact, a through hole is formed through the surface of the connecting block, the screw passes through the surface of the connecting block through the through hole, and the curvature of the surface of the connecting plate is consistent with the curvature of the shield casing.

[0007] Preferably, the protective plate is slidably connected to the shield casing via a receiving groove, the two ends of the support spring are fixedly connected to the inner side of the receiving groove and the surface of the protective plate, and the protective plate is elastically slidably connected to the connecting groove via the support spring.

[0008] Preferably, the interior of the grouting pipe is hollow, the grouting pipe passes through the surface of the connecting plate, the surface of the control plate is in an arc shape, and the output shaft of the telescopic cylinder is fixedly connected to the fixing block.

[0009] Preferably, the grouting pipe is connected to the grouting pipe passage through a control panel, the through grooves are evenly arranged on the outer surface of the grouting pipe, and the protective cover and the support block are in abutment contact.

[0010] Preferably, the outer surface of the protective cover is in an arc shape, the two ends of the telescopic spring are fixedly connected to the surfaces of the guide block and the protective cover, and the protective cover is elastically rotatably connected via the telescopic spring and the through slot.

[0011] Preferably, the connecting rods are connected to the surface of the baffle in two groups, the baffle is engaged with the connecting plate through a groove, a circular hole is penetrated through the surface of the baffle, and the grouting pipe is connected to the baffle through the circular hole.

[0012] Preferably, the surface of one end of the support column away from the connecting rod is in a semi-spherical shape, and the positioning block is connected to the surface where the support column and the control plate are in contact with each other.

[0013] Preferably, two ends of the compression spring are fixedly connected to the inner side of the support column and the end of the connecting rod away from the baffle, and the support column is elastically slidably connected to the connecting rod through the compression spring.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. Through the connection between the shield casing and the placement slot, under the action of the placement slot, the operation of the fitting connection of the connecting plate on the shield casing is facilitated. Through the connection between the connecting plate and the limit block, and the connection between the connecting plate and the connecting block, under the action of the limit slot and the connecting slot, the position support effect of the connecting plate on the shield casing is achieved. Through the connection between the telescopic cylinder and the fixed block, under the connection between the control panel and the grouting pipe, the effect of regulating the effective length of the grouting pipe on the connecting plate is achieved. Through the action of the grouting pipe and the grouting pipe, the grouting effect is achieved, thereby improving the grouting reinforcement performance during the shutdown operation of the shield machine.

[0016] 2. Through the connection between the grouting pipe and the through groove, under the action of the support block and the protective cover, and through the connection of the guide block and the telescopic spring, the elastic rotation effect of the protective cover on the grouting pipe is realized. Under the action of the protective cover, the grouting pipe is blocked when inserted into the soil, and the soil is prevented from entering the grouting pipe, thereby improving the effect of grouting. Under the connection of the baffle and the connecting rod, through the abutment contact between the abutment column and the control plate, when the position of the control plate changes, the position of the baffle on the connecting plate changes, so that the baffle and the soil are abutted, thereby avoiding dripping during the grouting operation of the grouting pipe. Under the connection of the protective plate and the support spring, through the action of the support spring, the elastic sliding effect of the protective plate on the connecting groove is realized, thereby completing the protective operation when the connecting block and the connecting groove are connected. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the engineering of the present invention;

[0018] Figure 2 It is a front perspective schematic diagram of the structure of the present invention;

[0019] Figure 3 It is a partial three-dimensional schematic diagram of the structure of the present invention;

[0020] Figure 4 It is a bottom-up stereoscopic schematic diagram of the structure of the connecting plate of the present invention;

[0021] Figure 5 It is a three-dimensional exploded schematic diagram of the connection structure of the shield machine casing and the connection plate of the present invention;

[0022] Figure 6 It is a three-dimensional dynamic schematic diagram of the connection structure of the connection plate and the grouting pipe of the present invention;

[0023] Figure 7 For the present invention Figure 6 A schematic diagram of the enlarged structure at A in the middle;

[0024] Figure 8 It is a partial three-dimensional schematic diagram of the shield casing structure of the present invention;

[0025] Fig. 9 It is a schematic diagram of the structure of the grouting pipe of the present invention;

[0026] Fig.10 It is a schematic diagram of a partial three-dimensional cross-sectional view of the structure of the grouting pipe of the present invention;

[0027] Fig.11 For the present invention Fig.10 Schematic diagram of the expanded three-dimensional structure of the connection structure between the grouting pipe and the protective cover.

[0028] In the figure: 1. Shield casing; 11. Placement slot; 12. Limiting slot; 13. Connecting slot; 14. Screw; 2. Cutter head; 3. Connecting plate; 31. Limiting block; 32. Connecting block; 4. Protective plate; 41. Support spring; 42. Storage slot; 5. Grouting pipe; 51. Control panel; 52. Fixed block; 53. Support block; 54. Protective cover; 55. Guide block; 56. Telescopic spring; 6. Slurry delivery pipe; 7. Telescopic cylinder; 8. Baffle; 81. Column; 82. Connecting rod; 83. Compression spring; 84. Positioning block. DETAILED DESCRIPTION

[0029] See also Figure 1-11 , an embodiment provided by the present invention:

[0030] A grouting cutterhead of a shield machine for passing through an existing pipeline comprises a shield machine casing 1 and a cutterhead 2. A placement groove 11 is formed on the surface of the shield machine casing 1, a limit groove 12 and a connection groove 13 are formed on the outer surface of the shield machine casing 1, a screw 14 is fixedly connected to the inner side of the connection groove 13, a connection plate 3 is embeddedly connected to the inner side of the placement groove 11, a limit block 31 and a connection block 32 are fixedly connected to the outer surface of the connection plate 3, a receiving groove 42 is formed on the inner side of the connection groove 13, a support spring 41 is fixedly connected to the inner side of the receiving groove 42, a protective plate 4 is fixedly connected to the surface of the support spring 41, a groove is formed on the surface of the connection plate 3, a baffle 8 is embeddedly connected to the inner side of the groove, a grouting pipe 5 is formed on the inner side of the baffle 8, a control board 51 is fixedly connected to the surface of the grouting pipe 5, and a fixed block 5 is fixedly connected to the outer surface of the control board 51 2. The surface passage of the control panel 51 is connected with a grouting pipe 6. A through groove is formed on the surface of the grouting pipe 5, and a support block 53 is fixedly connected to the inner side of the through groove. A protective cover 54 is movably connected to the inner side of the through groove. A guide block 55 is fixedly connected to the inner wall of the grouting pipe 5, and a telescopic spring 56 is fixedly connected to the inner side of the guide block 55. A telescopic cylinder 7 is fixedly connected to the inner wall of the shield casing 1. A connecting rod 82 is fixedly connected to the inner surface of the baffle 8, and a compression spring 83 is fixedly connected to the surface of the connecting rod 82. A resist column 81 is sleeved on the outer surface of the connecting rod 82. A positioning block 84 is fixedly connected to the surface of the control panel 51. Through the connection between the shield casing 1 and the placement groove 11, under the action of the placement groove 11, the installation operation of the connecting plate 3 on the shield casing 1 is facilitated, and the overall replacement and installation effect of the connecting plate 3 and its used parts is achieved.

[0031] Furthermore, the limit blocks 31 are connected in two groups on opposite sides of the connecting plate 3, the limit blocks 31 and the limit grooves 12 are in abutment with each other, and the connecting blocks 32 are connected in two groups on adjacent surfaces where the connecting plate 3 and the limit blocks 31 are in contact. Through the connection between the connecting plate 3 and the limit blocks 31 and the connection between the connecting plate 3 and the connecting blocks 32, a supporting connection effect of the connecting plate 3 on the shield casing 1 is achieved.

[0032] Furthermore, the connecting block 32 and the connecting groove 13 are in abutment with each other, a through hole is formed on the surface of the connecting block 32, and the screw 14 passes through the surface of the connecting block 32 through the through hole. The curvature of the surface of the connecting plate 3 is consistent with the curvature of the shield casing 1. Through the abutment between the connecting block 32 and the connecting groove 13, under the connection between the connecting block 32 and the screw 14, the installation support effect of the connecting plate 3 on the shield casing 1 is achieved.

[0033] Furthermore, the protective plate 4 is slidably connected to the shield machine casing 1 through the receiving groove 42, and the two ends of the support spring 41 are fixedly connected to the inner side of the receiving groove 42 and the surface of the protective plate 4. The protective plate 4 is elastically slidably connected to the connecting groove 13 through the support spring 41. Through the sliding connection between the protective plate 4 and the receiving groove 42, and under the connection of the support spring 41 and the protective plate 4, a protective effect is achieved on the connection of the connecting block 32 in the connecting groove 13, thereby preventing the connecting groove 13 from being blocked by soil.

[0034] Furthermore, the interior of the grouting pipe 5 is hollow, the grouting pipe 5 passes through the surface of the connecting plate 3, the surface of the control plate 51 is in an arc shape, the output shaft of the telescopic cylinder 7 is fixedly connected to the fixed block 52, and through the connection between the grouting pipe 5 and the control plate 51, and under the connection between the control plate 51 and the fixed block 52, the telescopic cylinder 7 and the fixed block 52 are used to achieve the effect of regulating the use position of the grouting pipe 5 on the connecting plate 3, thereby achieving the grouting use effect of the grouting pipe 5 in the shield tunnel.

[0035] Furthermore, the slurry delivery pipe 6 is connected to the grouting pipe 5 through the control panel 51, the through grooves are evenly arranged on the outer surface of the grouting pipe 5, the protective cover 54 and the support block 53 are in abutment with each other, and the slurry delivery pipe 6 and the grouting pipe 5 are connected through the passage. Under the action of the slurry delivery pipe 6, the grouting in the grouting pipe 5 is conveniently transported, thereby achieving the grouting effect of the grouting pipe 5.

[0036] Furthermore, the outer surface of the protective cover 54 is in an arc shape, and the two ends of the telescopic spring 56 are fixedly connected to the surface of the guide block 55 and the protective cover 54. The protective cover 54 is elastically rotatably connected to the through groove through the telescopic spring 56. Through the connection between the support block 53 and the through groove on the grouting pipe 5, under the connection between the protective cover 54 and the telescopic spring 56, the effect of regulating the action angle of the protective cover 54 is achieved, so as to achieve the protection effect of the grouting pipe 5 when it is not in use for grouting, and to prevent soil from entering the inside of the grouting pipe 5 and affecting the performance of the grouting pipe 5.

[0037] Furthermore, the connecting rods 82 are connected to the surface of the baffle 8 in two groups. The baffle 8 is engaged with the connecting plate 3 through a groove. A circular hole is penetrated on the surface of the baffle 8. The grouting pipe 5 is connected to the baffle 8 through the circular hole. Through the connection between the baffle 8 and the connecting rods 82, under the action of the baffle 8, the grouting pipe 5 and the tunnel are protected during grouting, thereby avoiding dripping of grouting.

[0038] Furthermore, the surface of one end of the support column 81 away from the connecting rod 82 is semi-spherical in shape, and the positioning block 84 is connected to the surface where the support column 81 and the control plate 51 are in abutment with each other. Through the connection between the connecting rod 82 and the support column 81, under the abutment and contact between the support column 81 and the control plate 51, the connection position of the baffle 8 on the connecting plate 3 is regulated.

[0039] Furthermore, both ends of the compression spring 83 are fixedly connected to the inner side of the support column 81 and the end of the connecting rod 82 away from the baffle 8. The support column 81 is elastically slidably connected to the connecting rod 82 through the compression spring 83. Through the connection between the connecting rod 82 and the compression spring 83, under the action of the compression spring 83, the connection position between the support column 81 and the connecting rod 82 is regulated, thereby improving the stability of the contact between the baffle 8 and the tunnel surface.

[0040] Working principle: When the shield machine is shut down, the control switch is started to start the telescopic cylinder 7. Under the connection between the output shaft on the telescopic cylinder 7 and the fixed block 52, the position of the control board 51 and the grouting pipe 5 on the connecting plate 3 is changed, and the passageway between the grouting pipe 6 and the grouting pipe 5 is connected. Through the action of the grouting pipe 6, the grouting operation of the grouting pipe 5 at the relevant position of the tunnel is completed, thereby improving the stability performance. When the position of the grouting pipe 5 changes, the control board 51 and the abutment column 81 are in contact with each other. Under the connection of the compression spring 83 and the connecting rod 82, the position of the baffle plate 8 on the connecting plate 3 is changed. At this time, the baffle plate 8 and the tunnel are in contact with each other to prevent the grouting pipe 5 from flowing out of the plug-in gap of the grouting pipe 5 during grouting, thereby improving the grouting performance and efficiency. Under the connection between the connecting block 32 and the screw 14, through the action of the protective plate 4, the protection operation of the connecting groove 13 is completed to prevent soil from entering the connecting groove 13 and affecting the disassembly and assembly operation of the connecting plate 3 on the shield machine casing 1, thereby improving its performance.

Claims

1. A grouting cutterhead of a shield machine for passing through an existing pipeline, comprising a shield machine casing and a cutterhead, characterized in that: A placement groove is provided on the surface of the shield casing, a limit groove and a connection groove are provided on the outer surface of the shield casing, a screw is fixedly connected to the inner side of the connection groove, a connection plate is embedded in the inner side of the placement groove, a limit block and a connection block are fixedly connected to the outer surface of the connection plate, a receiving groove is provided on the inner side of the connection groove, a support spring is fixedly connected to the inner side of the receiving groove, a protective plate is fixedly connected to the surface of the support spring, a groove is provided on the surface of the connection plate, and a baffle is embedded in the inner side of the groove, a grouting pipe is connected to the inner side of the baffle, and a control The control panel has a fixed block fixedly connected to its outer surface, a grouting pipe connected to its surface passage, a through groove extending through the surface of the grouting pipe, a supporting block fixedly connected to the inner side of the through groove, a protective cover movably connected to the inner side of the through groove, a guide block fixedly connected to the inner wall of the grouting pipe, a telescopic spring fixedly connected to the inner side of the guide block, a telescopic cylinder fixedly connected to the inner wall of the shield casing, a connecting rod fixedly connected to the inner surface of the baffle, a compression spring fixedly connected to the surface of the connecting rod, a resist column sleeved on the outer surface of the connecting rod, and a positioning block fixedly connected to the surface of the control panel.

2. The grouting cutterhead of a shield machine for passing under an existing pipeline according to claim 1, characterized in that: The limit blocks are connected to opposite sides of the connecting plate in two groups, the limit blocks are in contact with the limit grooves, and the connecting blocks are connected to adjacent surfaces of the connecting plate and the limit blocks in two groups.

3. The grouting cutterhead of a shield machine for passing under an existing pipeline according to claim 1, characterized in that: The connecting block and the connecting groove are in abutment contact, a through hole is formed through the surface of the connecting block, the screw passes through the surface of the connecting block through the through hole, and the curvature of the surface of the connecting plate is consistent with the curvature of the shield casing.

4. The grouting cutterhead of a shield machine for passing through an existing pipeline according to claim 1, characterized in that: The protective plate is slidably connected to the shield casing via a receiving groove, the two ends of the support spring are fixedly connected to the inner side of the receiving groove and the surface of the protective plate, and the protective plate is elastically slidably connected to the connecting groove via the support spring.

5. The grouting cutterhead of a shield machine for passing under an existing pipeline according to claim 1, characterized in that: The interior of the grouting pipe is hollow, and the grouting pipe passes through the surface of the connecting plate. The surface of the control plate is in an arc shape, and the output shaft of the telescopic cylinder is fixedly connected to the fixing block.

6. The grouting cutterhead of a shield machine for passing under an existing pipeline according to claim 1, characterized in that: The grouting pipe is connected with the grouting pipe passage through the control panel, the through grooves are evenly arranged on the outer surface of the grouting pipe, and the protective cover is in abutment contact with the support block.

7. The grouting cutterhead of a shield machine for passing under an existing pipeline according to claim 1, characterized in that: The outer surface of the protective cover is in an arc shape, the two ends of the telescopic spring are fixedly connected to the surfaces of the guide block and the protective cover, and the protective cover is elastically rotatably connected through the telescopic spring and the through slot.

8. The grouting cutterhead of a shield machine for passing under an existing pipeline according to claim 1, characterized in that: The connecting rods are connected to the surface of the baffle in two groups. The baffle is engaged with the connecting plate through a groove. A circular hole is penetrated on the surface of the baffle. The grouting pipe is connected to the baffle through the circular hole.

9. The grouting cutterhead of a shield machine for passing under an existing pipeline according to claim 1, characterized in that: The surface of one end of the support column away from the connecting rod is in a semi-spherical shape, and the positioning block is connected to the surface where the support column and the control plate are in contact with each other.

10. The grouting cutterhead of a shield machine for passing under an existing pipeline according to claim 1, characterized in that: The two ends of the compression spring are fixedly connected to the inner side of the support column and the end of the connecting rod away from the baffle, and the support column is elastically slidably connected with the connecting rod through the compression spring.

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