CN112924067A - Soil pressure sensor replacing device - Google Patents
Soil pressure sensor replacing device Download PDFInfo
- Publication number
- CN112924067A CN112924067A CN202110103752.0A CN202110103752A CN112924067A CN 112924067 A CN112924067 A CN 112924067A CN 202110103752 A CN202110103752 A CN 202110103752A CN 112924067 A CN112924067 A CN 112924067A
- Authority
- CN
- China
- Prior art keywords
- hole
- pressure sensor
- spherical
- soil pressure
- mounting seat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000002689 soil Substances 0.000 title claims abstract description 85
- 210000004907 gland Anatomy 0.000 claims abstract description 42
- 230000000149 penetrating effect Effects 0.000 claims abstract description 8
- 238000007789 sealing Methods 0.000 claims description 33
- 238000010276 construction Methods 0.000 description 16
- 238000000034 method Methods 0.000 description 6
- 238000005192 partition Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 230000001681 protective effect Effects 0.000 description 3
- 230000005641 tunneling Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
The invention relates to a soil pressure sensor replacing device which comprises a connecting base, a spherical mounting seat and an annular gland, wherein the connecting base is of a cylindrical structure with an opening at a first end, the opening end of the connecting base is adjustably and fixedly connected with the gland, the inner wall of the connecting base and the inner side end face of the gland are enclosed to form a spherical groove, and a through hole penetrating through a second end of the connecting base is formed in the bottom of the spherical groove. The spherical mounting seat can be rotatably mounted in the spherical groove, and the outer wall surface of the spherical mounting seat is a spherical surface matched with the groove wall of the spherical groove. The spherical mounting seat is internally provided with an accommodating cavity with an opening at one end and used for placing the soil pressure sensor, the opening end of the accommodating cavity is communicated with the inner hole of the gland, the bottom of the accommodating cavity is provided with a through hole penetrating through the spherical mounting seat, and the soil pressure sensor can be detachably fixed in the accommodating cavity and can cover the through hole. The soil pressure sensor replacing device occupies smaller space and is more convenient to replace.
Description
Technical Field
The invention relates to the field of shield tunnel construction machinery, in particular to a soil pressure sensor replacing device.
Background
In the field of tunnel construction in China, a shield machine is adopted by more construction units by virtue of high-efficiency construction efficiency, wide geological adaptability and good stratum settlement control capability. Among them, the earth pressure balance shield machine is most widely used in the construction of subway tunnels. The construction characteristics of the earth pressure balance shield machine are that the stability of the tunnel face is maintained by controlling the pressure of the earth bin so as to control the settlement of the earth surface, the main element for monitoring the pressure of different positions of the earth bin is an earth pressure sensor, and the main control room monitors the pressure condition in the earth bin in real time by receiving the signal of the earth pressure sensor so as to provide data support for realizing earth pressure balance in the shield construction. Therefore, the soil pressure sensor and the stability thereof are important for the construction of the soil pressure balance shield, and once the sensor is damaged, the tunneling of a TBM (Tunnel Boring Machine) is greatly influenced.
At present, a plurality of methods for replacing the soil pressure sensor are available, the main method is to pull out the soil pressure sensor through a specific tool, then seal and stop water by plugging a sensor hole on a shield body through a steel plate, and finally replace the sensor.
Therefore, the inventor provides the soil pressure sensor replacing device by virtue of experience and practice of related industries for many years so as to overcome the defects in the prior art.
Disclosure of Invention
The invention aims to provide a soil pressure sensor replacing device which occupies a smaller space and is simpler and more convenient to replace.
The invention aims to realize the purpose, and the soil pressure sensor replacing device comprises a connecting base, a spherical mounting seat and an annular gland; the connecting base is of a cylindrical structure with an opening at the first end, the opening end of the connecting base is adjustably and fixedly connected with the gland, the inner wall of the connecting base and the end surface of the inner side of the gland are enclosed to form a spherical groove, and a through hole penetrating through the second end of the connecting base is formed at the bottom of the spherical groove; the spherical mounting seat can be rotatably mounted in the spherical groove, and the outer wall surface of the spherical mounting seat is a spherical surface matched with the groove wall of the spherical groove; the spherical mounting seat is internally provided with an accommodating cavity with one end opened and used for placing the soil pressure sensor, the opening end of the accommodating cavity is communicated with an inner hole of the gland, the bottom of the accommodating cavity is provided with a through hole penetrating through the spherical mounting seat, and the soil pressure sensor can be detachably and fixedly arranged in the accommodating cavity and can cover the through hole; when the spherical mounting seat is in a working position, the through hole is opposite to the through hole, and the end surface of the inner side of the gland presses the spherical mounting seat tightly; when the spherical mounting seat rotates to the replacement position, the through hole is staggered with the through hole, and the outer wall surface of the spherical mounting seat plugs the through hole.
In a preferred embodiment of the present invention, a washer is interposed between the end surface of the opening end of the connection base and the end surface of the gland, and is fixedly connected to the end surface of the gland by an adjusting bolt and an adjusting nut.
In a preferred embodiment of the present invention, a limiting cover is disposed at the opening end of the accommodating cavity, the outer wall of the limiting cover is in threaded connection with the inner wall of the spherical mounting seat, and the outer end of the limiting cover can extend into the inner hole of the gland.
In a preferred embodiment of the present invention, the accommodating chamber is formed by a first stepped hole and a second stepped hole whose aperture increases from the through hole to the opening end thereof in sequence, the soil pressure sensor is embedded in the first stepped hole, a cover plate is disposed in the second stepped hole, and the cover plate abuts against the soil pressure sensor and is detachably and fixedly connected to a hole shoulder at the bottom of the second stepped hole.
In a preferred embodiment of the present invention, a rocker is further disposed in the accommodating chamber, one end of the rocker is fixedly connected to the cover plate, and the other end of the rocker penetrates through an inner hole of the gland.
In a preferred embodiment of the present invention, the pressing cover has a longitudinal cut, and an open slot is formed in a side wall of the first end of the connecting base, and the open slot penetrates through an end surface of the first end of the connecting base; the longitudinal notch is communicated with the open slot, and the other end of the rocker can penetrate through the longitudinal notch or the open slot.
In a preferred embodiment of the present invention, two rotating shafts are fixed on the outer wall of the spherical mounting seat and located on the two sides of the accommodating cavity, and each rotating shaft is pivotally connected to the connecting base.
In a preferred embodiment of the present invention, a first scale mark and a second scale mark are disposed on an inner wall of the connection base along a rotation direction of the spherical mounting seat, the rocker is opposite to the first scale mark when the spherical mounting seat is located at the working position, and the rocker is opposite to the second scale mark when the spherical mounting seat is rotated to the replacement position.
In a preferred embodiment of the present invention, the soil pressure sensor replacing device further comprises an annular base, wherein an annular mounting groove communicated with an inner hole of the base is formed on an end surface of one end of the base; the second end of the connecting base protrudes outwards to form a convex ring, and the convex ring is embedded in the annular mounting groove and is detachably and fixedly connected with the base.
In a preferred embodiment of the present invention, a first sealing ring is embedded around the through hole on the groove wall of the spherical groove, a second sealing ring is embedded on the plate surface of the cover plate contacting with the bottom hole shoulder of the second stepped hole, and a third sealing ring is embedded on the end surface of the convex ring contacting with the groove bottom of the annular mounting groove.
In a preferred embodiment of the present invention, the soil pressure sensor replacing device further includes a first pressure retaining plate, wherein the first pressure retaining plate is provided with a first pressure retaining connection hole, and the first pressure retaining plate is detachably and sealingly fixed on the end surface of the base and covers the second end surface of the connection base.
In a preferred embodiment of the present invention, the soil pressure sensor replacing device further includes a second pressure maintaining plate, the second pressure maintaining plate is provided with a second pressure maintaining device connection hole, and the second pressure maintaining plate is detachably fixed to the second end surface of the connection base in a sealing manner and can cover the through hole.
According to the soil pressure sensor replacing device, the connecting base, the spherical mounting seat and the gland are matched and are mutually matched through the spherical surface, when the sensor needs to be replaced, the soil pressure sensor can be rotated to a specified position and simultaneously the through hole is plugged only by rotating the spherical mounting seat, and the sensor hole in the shield body structure partition plate is also plugged. The whole device is simple in structure, the soil pressure sensor can be conveniently and quickly replaced, the construction efficiency is greatly improved, and the construction period is shortened. Meanwhile, the whole device occupies a small space of the shield body structure and needs a small operation space, so that interference with other parts in the shield body structure in the replacement process can be effectively avoided, and the operation is more flexible.
Drawings
The drawings are only for purposes of illustrating and explaining the present invention and are not to be construed as limiting the scope of the present invention. Wherein:
FIG. 1: the invention provides an overall view of a soil pressure sensor replacing device.
FIG. 2: the invention provides an exploded view of a soil pressure sensor replacing device.
FIG. 3: the invention provides a cross section of a soil pressure sensor replacing device when a second pressure-maintaining disk is connected.
FIG. 4: a cross-sectional view taken along the direction a-a and with the first pressure retaining plate attached is shown in fig. 3.
FIG. 5: the invention provides a soil pressure sensor replacing device, which is a cross section when a spherical mounting seat is at a replacing position.
FIG. 6: is a schematic structural diagram of the base provided by the invention.
FIG. 7: which is a cross-sectional view taken along the direction B-B in fig. 6.
FIG. 8: the invention provides a schematic structural diagram of a connecting base.
FIG. 9: is a cross-sectional view taken along the direction C-C in fig. 8.
FIG. 10: the invention provides a schematic structural diagram of a spherical mounting seat.
FIG. 11: is a cross-sectional view taken along the direction D-D in fig. 10.
FIG. 12: the structure of the gland is shown schematically.
FIG. 13: is a cross-sectional view taken along the direction E-E in fig. 12.
FIG. 14: the invention provides a structural schematic diagram of a first pressure-retaining disc.
FIG. 15: is a cross-sectional view taken along the direction F-F in fig. 14.
FIG. 16: the invention provides a structural schematic diagram of a second pressure-maintaining disk.
FIG. 17: is a cross-sectional view taken along the direction G-G in fig. 16.
The reference numbers illustrate:
1. a base; 11. an annular mounting groove;
2. a connection base; 21. a spherical groove; 22. through holes; 23. an open slot; 24. a convex ring; 25. a third seal ring;
3. a spherical mounting seat; 31. an accommodating cavity; 311. a first stepped hole; 312. a second stepped bore; 32. a through hole; 33. a cover plate; 331. a second seal ring; 34. a rotating shaft; 35. a first seal ring;
4. a gland; 41. an inner bore; 42. a longitudinal cut; 43. adjusting the bolt; 44. adjusting the nut;
5. a soil pressure sensor;
6. a limiting cover; 61. a protective cylinder;
7. a rocker;
81. a first pressure holding disk; 811. a first pressure maintaining device connection hole; 812. a first groove;
82. a second pressure-maintaining disk; 821. a second pressure maintaining device is connected with the hole; 822. a second groove;
9. a separator.
Detailed Description
In order to more clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will now be described with reference to the accompanying drawings.
As shown in fig. 1 to 17, the present embodiment provides an earth pressure sensor replacing device, which includes a connection base 2, a spherical mounting seat 3, and an annular gland 4.
The connection base 2 is a cylindrical structure with an opening at a first end, the opening end of the connection base is adjustably and fixedly connected with the gland 4, the inner wall of the connection base 2 and the end surface of the inner side of the gland 4 are enclosed to form a spherical groove 21, and a through hole 22 penetrating through the second end of the connection base 2 is formed in the bottom of the spherical groove 21. The spherical mounting seat 3 is rotatably mounted in the spherical groove 21, and the outer wall surface of the spherical mounting seat 3 is a spherical surface matched with the groove wall of the spherical groove 21. The spherical mounting seat 3 is internally provided with an accommodating cavity 31 with an opening at one end and used for placing the soil pressure sensor 5, the opening end of the accommodating cavity is communicated with an inner hole 41 of the gland 4, the bottom of the accommodating cavity 31 is provided with a through hole 32 penetrating through the spherical mounting seat 3, and the soil pressure sensor 5 is detachably and fixedly arranged in the accommodating cavity 31 and can cover the through hole 32. When the spherical mounting base 3 is in the working position, the through hole 32 is opposite to the through hole 22, and the inner side end surface of the gland 4 compresses the spherical mounting base 3; when the spherical mounting base 3 is rotated to the replacement position, the through hole 32 is staggered with the through hole 22, and the outer wall surface of the spherical mounting base 3 blocks the through hole 22.
Specifically, a partition plate 9 is arranged in a shield body structure of the earth pressure balance shield machine, a sensor hole for installing the earth pressure sensor 5 is formed in the partition plate 9, and the connecting base 2 is inserted and fixed in the sensor hole during installation. Through adjusting being connected between the open end of connection base 2 and gland 4, can adjust connection base 2 to the dynamics of compressing tightly of spherical mount pad 3. When the soil pressure sensor 5 works normally, the spherical mounting seat 3 is in a working position, the end surface of the inner side of the gland 4 presses the spherical mounting seat 3, the spherical mounting seat 3 is limited by the friction force between the spherical mounting seat 3 and the spherical mounting seat 3 is prevented from rotating; at this time, the through hole 32 is opposite to the through hole 22, and the soil pressure sensor 5 can be communicated with the soil bin outside the second end of the connection base 2 through the through hole 32 and the through hole 22 to detect the pressure in the soil bin.
When the soil pressure sensor 5 needs to be replaced, the soil pressure balance shield machine stops, the connection between the opening end of the connecting base 2 and the gland 4 is adjusted, so that the gland 4 does not compress the spherical connecting seat any more, the spherical mounting seat 3 can rotate, when the spherical mounting seat is rotated to a specified position, the through hole 32 is staggered with the through hole 22, and the outer wall surface of the spherical mounting seat 3 blocks the through hole 22; at this time, the spherical mounting seat 3 is in the replacement position, and as shown in fig. 5, since the opening end of the accommodating chamber 31 is always kept in communication with the inner hole 41 of the pressing cover 4, the soil pressure sensor 5 can be replaced through the inner hole 41 of the pressing cover 4 and the opening of the accommodating chamber 31.
Therefore, the soil pressure sensor replacing device in the embodiment is matched with the gland 4 through the connecting base 2, the spherical mounting seat 3 and the spherical surface, and when the sensor needs to be replaced, the spherical mounting seat 3 is only required to be rotated to rotate the soil pressure sensor 5 to a specified position and simultaneously plug the through hole 22, namely, the sensor hole on the shield body structure partition plate 9 is plugged. The whole device is simple in structure, the soil pressure sensor 5 can be conveniently and quickly replaced, the construction efficiency is greatly improved, and the construction period is shortened. Meanwhile, the whole device occupies a small space of the shield body structure and needs a small operation space, so that interference with other parts in the shield body structure in the replacement process can be effectively avoided, and the operation is more flexible.
In a specific implementation manner, in order to facilitate adjustment of the pressing force of the connection base 2 on the spherical mounting base 3, a washer (not shown in the figure) is interposed between the end surface of the opening end of the connection base 2 and the end surface of the gland 4, and is fixedly connected through an adjusting bolt 43 and an adjusting nut 44. Through the packing ring of installation different thickness, alright in order to adjust the dynamics that gland 4 pressed on spherical mount pad 3, simple and convenient.
Further, it may be less stable to prevent the spherical mount 3 from rotating by only the frictional force between the pressing cover 4 and the spherical mount 3. Therefore, in order to more effectively prevent the spherical mounting base 3 from rotating when the spherical mounting base is in the working position, as shown in fig. 1 to 4, a limiting cover 6 is arranged at the opening end of the accommodating cavity 31, the outer wall of the limiting cover 6 is in threaded connection with the inner wall of the spherical mounting base 3, and the outer end of the limiting cover 6 can extend into the inner hole 41 of the gland 4.
When the device is installed, one part of the limiting cover 6 is fixed with the spherical mounting seat 3 through threads by adjusting the screwing depth of the limiting cover 6 and the spherical mounting seat 3, the other part of the limiting cover extends into the inner hole 41 of the gland 4, the spherical mounting seat 3 is limited through a mechanical structure, and the rotation of the spherical mounting seat 3 is effectively avoided; when the soil pressure sensor 5 needs to be replaced, the limiting cover 6 is screwed out and detached.
Further, in order to fix the soil pressure sensor 5 and facilitate replacement, as shown in fig. 3 and 11, the accommodating cavity 31 is formed by a first stepped hole 311 and a second stepped hole 312, the aperture of which is sequentially increased from the through hole 32 to the opening end of the accommodating cavity, the soil pressure sensor 5 is embedded in the first stepped hole 311, a cover plate 33 is arranged in the second stepped hole 312, and the cover plate 33 abuts against the soil pressure sensor 5 and is detachably and fixedly connected with a hole shoulder at the bottom of the second stepped hole 312.
It can be understood that the aperture of the first stepped hole 311 is larger than that of the through hole 32, and the soil pressure sensor 5 can abut against the hole shoulder at the bottom of the first stepped hole 311; the limiting cover 6 is specifically in threaded connection with the hole wall of the second stepped hole 312. When spherical mount pad 3 rotated to the change position, torn apron 33 down, then outwards taken out soil pressure sensor 5 by second shoulder hole 312 towards the open end of holding chamber 31, can conveniently change soil pressure sensor 5, it is easy and simple to handle.
In order to facilitate the operator to rotate the spherical mounting seat 3, as shown in fig. 1 to 5, a rocker 7 is further disposed in the accommodating chamber 31, one end of the rocker 7 is fixedly connected to the cover plate 33, and the other end of the rocker 7 penetrates through an inner hole 41 of the gland 4. When the soil pressure sensor 5 needs to be replaced, the spherical mounting seat 3 can be rotated by controlling the rocker 7. It can be understood that the limit cover 6 is an annular structure, and the rocker 7 can penetrate through an inner hole of the annular structure; a protective cylinder 61 is generally fixedly arranged on the end surface of the limiting cover 6 back to the soil pressure sensor 5, and the rocker 7 can penetrate through the protective cylinder 61 to protect the rocker 7.
Because the inner hole 41 of the cover plate 33 is limited, the rocker 7 can only drive the spherical mounting seat 3 to rotate in a small angle, and the use requirement can be met for the soil pressure sensor 5 with a small size; however, for the soil pressure sensor 5 with a larger size, the spherical mounting seat 3 needs to rotate by a larger angle to block the through hole 22 and rotate to the replacement position, and if the rocker 7 only swings within the aperture range of the inner hole 41 of the cover plate 33, the use requirement may not be met. Therefore, in order to increase the swing angle of the rocker 7 and make the rocker 7 drive the spherical mounting seat 3 to rotate by a larger angle, as shown in fig. 1 and 12, the gland 4 has a longitudinal cut 42, and an open slot 23 is opened on the side wall of the first end of the connection base 2, and the open slot 23 penetrates through the end surface of the first end of the connection base 2. The longitudinal cut 42 is communicated with the opening groove 23, and the other end of the rocker 7 can penetrate through the longitudinal cut 42 or the opening groove 23.
In practical application, two rotating shafts 34 are fixedly arranged on the outer wall of the spherical mounting seat 3 and located on the two sides of the accommodating cavity 31, and each rotating shaft 34 is pivoted with the connecting base 2. The rotation direction of the spherical mount 3 inside the connection base 2 can be restricted by the rotation shaft 34. More preferably, the axial direction of the rotating shaft 34 is parallel to the plate surface of the partition 9 (i.e. parallel to the first end surface of the connecting base 2), the axial direction of the rocker 7 is perpendicular to the plate surface direction of the cover plate 33, and the opening groove 23 and the longitudinal cut 42 are arranged opposite to the rocker 7. In general, for easier mounting, the outer wall surface of the spherical mount 3 is flat corresponding to each rotation shaft 34, and the outer wall surface of the spherical mount 3 is also flat corresponding to the through hole 32.
More preferably, the inner wall of the connection base 2 is provided with a first scale mark and a second scale mark along the rotation direction of the spherical mounting seat 3, the rocker 7 is over against the first scale mark when the spherical mounting seat 3 is at the working position, and the rocker 7 is over against the second scale mark when the spherical mounting seat 3 rotates to the replacement position. Each scale mark can play the sign effect, location when both easy to assemble, simultaneously when rotatory spherical mount pad 3, when rocker 7 swings to the second scale mark, spherical mount pad 3 just moves to changing the position, more conveniently differentiates the rotation angle of spherical mount pad 3.
Further, for convenience of processing and installation, as shown in fig. 3, 7 and 9, the soil pressure sensor replacing device further comprises an annular base 1, and an annular installation groove 11 communicated with an inner hole of the base 1 is formed in one end face of the base 1. The second end of the connecting base 2 protrudes outwards to form a convex ring 24, and the convex ring 24 is embedded in the annular mounting groove 11 and is detachably and fixedly connected with the base 1. During installation, the base 1 is inserted into the sensor hole and fixedly connected (e.g., welded) with the partition plate 9, and then the convex ring 24 is fixedly connected with the base 1.
Typically, the collar 24 is bolted to the base 1 and the cover plate 33 is bolted to the spherical mount 3. In order to ensure the sealing performance of the soil pressure sensor replacing device, as shown in fig. 4, a first sealing ring 35 is embedded on the wall of the spherical groove 21 and around the through hole 22 to ensure the sealing performance between the joint surfaces of the connecting base 2 and the spherical mounting seat 3 and prevent the muck in the soil bin from entering the shield body through the joint; a second sealing ring 331 is embedded on the plate surface of the cover plate 33 contacting with the bottom hole shoulder of the second stepped hole 312, so as to ensure the sealing property between the combination surface of the cover plate 33 and the connection base 2; and a third sealing ring 25 is embedded on the end surface of the convex ring 24, which is contacted with the bottom of the annular mounting groove 11, so that the sealing property between the combination surface of the base 1 and the connection base 2 is ensured, and the muck in the soil bin is prevented from entering the shield body through the position. It can be understood that each surface is provided with an annular sealing groove, and each sealing ring is embedded in the corresponding sealing groove. Two first sealing rings 35 are preferably provided on the groove wall of the spherical groove 21 to improve the sealing performance there.
Further, in order to conveniently test the sealing performance of the soil pressure sensor replacing device at various places when the shield machine leaves the factory, as shown in fig. 3 and 4, the soil pressure sensor replacing device further comprises a first pressure retaining plate 81 and a second pressure retaining plate 82, a first pressure retaining device connecting hole 811 is formed in the first pressure retaining plate 81, and the first pressure retaining plate 81 can be detachably fixed on the end face of the base 1 in a sealing manner and can cover the second end face of the connecting base 2. A second pressure holding device connection hole 821 is formed in the second pressure holding plate 82, and the second pressure holding plate 82 is detachably fixed to the second end surface of the connection base 2 in a sealing manner and can cover the through hole 22.
Generally, the first pressure-retaining plate 81 and the second pressure-retaining plate 82 are both connected with the base 1 and the connection base 2 through bolts, and a sealing ring is embedded on the connection surface of the first pressure-retaining plate 81 and the second pressure-retaining plate 82 (specifically, a ring groove is formed in the plate surface of the first pressure-retaining plate 81 and the second pressure-retaining plate 82, and the sealing ring is embedded in the ring groove). Preferably, a first groove 812 communicated with the first pressure maintaining device connecting hole 811 is further formed on the disk surface of the first pressure maintaining disk 81 facing the connection base 2, and a second groove 822 communicated with the second pressure maintaining device connecting hole 821 is further formed on the disk surface of the second pressure maintaining disk 82 facing the connection base 2, so as to ensure a pressure measuring effect.
When the shield tunneling machine leaves the factory, the first pressure retaining plate 81 is connected first, and the first pressure retaining device connection hole 811 is connected to a pressure retaining device (in the prior art), so that the sealing performance between the base 1 and the connection base 2, between the connection base 2 and the spherical mounting base 3, and between the cover plate 33 and the spherical mounting base 3 can be tested. After that, the first pressure maintaining plate 81 is removed, the second pressure maintaining plate 82 is connected, and the second pressure maintaining device connecting hole 821 is connected with a pressure maintaining device, so that the sealing performance between the connection base 2 and the spherical mounting base 3 and between the spherical mounting base 3 and the cover plate 33 can be tested, and after the test is completed, the second pressure maintaining plate 82 is removed, so that the test is simple and convenient.
Further, the use process of the soil pressure sensor replacing device in the embodiment is specifically as follows:
after the replacing device is installed in a factory, the sealing performance of a sealing joint surface in the replacing device needs to be tested firstly, the replacing device is connected with the base 1 through the first pressure retaining plate 81, and the pressure retaining device is connected at the connecting hole 811 of the first pressure retaining device, so that the sealing performance of the three positions is tested; then, the second holding pressure plate 82 is connected to the connection base 2, and the holding pressure device is connected to the second holding pressure device connection hole 821, thereby testing the sealing performance at the two places.
When the soil pressure sensor 5 needs to be replaced, the limiting cover 6 is firstly screwed out of the spherical mounting seat 3, and the strength of the pressing cover 4 for pressing the spherical mounting seat 3 is adjusted by adjusting the thickness of the gasket between the pressing cover 4 and the connecting base 2, so that the spherical mounting seat 3 can rotate; then drive spherical mount pad 3 through swing rocker 7 and rotate around rotation axis 34, thereby obtain spherical mount pad 3's rotation angle through observing the scale mark in the connection base 2, stop rotating when rotation angle reaches the extreme position of sign (also when rocker 7 is just to the second scale mark), the outer sphere of spherical mount pad 3 plays the shutoff effect to thru hole 22 at connection base 2 center this moment, inside the effectual dregs that has prevented in the soil storehouse of the two first sealing washer 35 of collocation connection base 2 got into the shield body, later tear down apron 33 and take out soil pressure sensor 5 and just can change.
In conclusion, the soil pressure sensor replacing device in the embodiment has the advantages that the structure of each part is simple, the complex machining process is omitted, the structural parts are all detachably installed, the construction efficiency is improved, and the construction period is shortened. When the soil pressure balance shield is damaged in the tunneling process, the soil pressure sensor 5 can be safely screwed out and replaced by the device, and meanwhile, the condition that the muck in the soil bin cannot enter the shield body is also ensured, and the construction safety and the construction efficiency are ensured.
The above are merely exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention. Any equivalent changes and modifications that can be made by one skilled in the art without departing from the spirit and principles of the invention should fall within the protection scope of the invention.
Claims (12)
1. A soil pressure sensor replacing device is characterized by comprising a connecting base, a spherical mounting seat and an annular gland;
the connecting base is of a cylindrical structure with an opening at the first end, the opening end of the connecting base is adjustably and fixedly connected with the gland, the inner wall of the connecting base and the inner side end face of the gland are enclosed to form a spherical groove, and a through hole penetrating through the second end of the connecting base is formed in the bottom of the spherical groove; the spherical mounting seat can be rotatably mounted in the spherical groove, and the outer wall surface of the spherical mounting seat is a spherical surface matched with the groove wall of the spherical groove; the spherical mounting seat is internally provided with an accommodating cavity with an opening at one end and used for placing the soil pressure sensor, the opening end of the accommodating cavity is communicated with an inner hole of the gland, the bottom of the accommodating cavity is provided with a through hole penetrating through the spherical mounting seat, and the soil pressure sensor is detachably and fixedly arranged in the accommodating cavity and can cover the through hole;
when the spherical mounting seat is in a working position, the through hole is over against the through hole, and the end surface of the inner side of the gland presses the spherical mounting seat; when the spherical mounting seat rotates to the replacement position, the through hole is staggered with the through hole, and the outer wall surface of the spherical mounting seat plugs the through hole.
2. The soil pressure sensor replacing device according to claim 1,
and a washer is clamped between the end surface of the opening end of the connecting base and the end surface of the gland and is fixedly connected with the end surface of the gland through an adjusting bolt and an adjusting nut.
3. The soil pressure sensor replacing device according to claim 1,
the opening end of the containing cavity is provided with a limiting cover, the outer wall of the limiting cover is in threaded connection with the inner wall of the spherical mounting seat, and the outer side end of the limiting cover can extend into the inner hole of the gland.
4. The soil pressure sensor replacing device according to claim 1,
the holding chamber comprises from first step hole and the second step hole that the through-hole increases in proper order to its open end aperture, the soil pressure sensor inlays to be established first step is downthehole, the downthehole apron that is equipped with of second step, the apron supports and leans on the soil pressure sensor and with the hole shoulder of second step hole bottom can dismantle ground fixed connection.
5. The soil pressure sensor replacing device according to claim 4,
a rocker is arranged in the containing cavity, one end of the rocker is fixedly connected with the cover plate, and the other end of the rocker penetrates out of the inner hole of the gland.
6. The soil pressure sensor replacing device according to claim 5,
the gland is provided with a longitudinal cut, the side wall of the first end of the connecting base is provided with an open slot, and the open slot penetrates through the end face of the first end of the connecting base; the longitudinal cut is communicated with the open slot, and the other end of the rocker can penetrate through the longitudinal cut or the open slot.
7. The soil pressure sensor replacing device according to claim 1,
the outer wall of the spherical mounting seat is fixedly provided with two rotating shafts which are arranged on the two sides of the accommodating cavity and are pivoted with the connecting base.
8. The soil pressure sensor replacing device according to claim 5,
the inner wall of the connecting base is provided with a first scale mark and a second scale mark along the rotating direction of the spherical mounting seat, the rocker is over against the first scale mark when the spherical mounting seat is in a working position, and the rocker is over against the second scale mark when the spherical mounting seat rotates to a replacement position.
9. The soil pressure sensor replacing device according to claim 4,
the soil pressure sensor replacing device also comprises an annular base, wherein an annular mounting groove communicated with an inner hole of the base is formed in the end face of one end of the base; the second end of the connecting base protrudes outwards to form a convex ring, and the convex ring is embedded in the annular mounting groove and is detachably and fixedly connected with the base.
10. The soil pressure sensor replacing device according to claim 9,
and a first sealing ring is embedded on the wall of the spherical groove and around the through hole, a second sealing ring is embedded on the surface of the cover plate contacted with the bottom hole shoulder of the second stepped hole, and a third sealing ring is embedded on the end surface of the convex ring contacted with the groove bottom of the annular mounting groove.
11. The soil pressure sensor replacing device according to claim 10,
the soil pressure sensor replacing device further comprises a first pressure-retaining plate, wherein a first pressure-retaining device connecting hole is formed in the first pressure-retaining plate, and the first pressure-retaining plate can be detachably fixed in a sealing mode on the end face of the base and can cover the second end face of the connecting base.
12. The soil pressure sensor replacing device according to claim 10,
the soil pressure sensor replacing device further comprises a second pressure maintaining disc, wherein a second pressure maintaining device connecting hole is formed in the second pressure maintaining disc, and the second pressure maintaining disc can be detachably fixed on the second end face of the connecting base in a sealing mode and can cover the through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110103752.0A CN112924067B (en) | 2021-01-26 | 2021-01-26 | Soil pressure sensor changes device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110103752.0A CN112924067B (en) | 2021-01-26 | 2021-01-26 | Soil pressure sensor changes device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112924067A true CN112924067A (en) | 2021-06-08 |
| CN112924067B CN112924067B (en) | 2022-06-17 |
Family
ID=76166284
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110103752.0A Active CN112924067B (en) | 2021-01-26 | 2021-01-26 | Soil pressure sensor changes device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112924067B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1924293A (en) * | 2006-09-03 | 2007-03-07 | 大连华锐股份有限公司 | Rotary replaceable earth pressure cell for shield machine |
| JP2010121406A (en) * | 2008-11-21 | 2010-06-03 | Ihi Corp | Replacement type soil pressure measuring device for shield machine |
| CN108131147A (en) * | 2018-02-01 | 2018-06-08 | 辽宁三三工业有限公司 | A kind of soil pressure case quick replacement device |
| CN108331586A (en) * | 2018-02-14 | 2018-07-27 | 上海隧道工程有限公司 | Soil pressure case safe replacement device |
| CN211900608U (en) * | 2020-02-14 | 2020-11-10 | 中铁六局集团有限公司 | Soil pressure sensor changes auxiliary device |
-
2021
- 2021-01-26 CN CN202110103752.0A patent/CN112924067B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1924293A (en) * | 2006-09-03 | 2007-03-07 | 大连华锐股份有限公司 | Rotary replaceable earth pressure cell for shield machine |
| JP2010121406A (en) * | 2008-11-21 | 2010-06-03 | Ihi Corp | Replacement type soil pressure measuring device for shield machine |
| CN108131147A (en) * | 2018-02-01 | 2018-06-08 | 辽宁三三工业有限公司 | A kind of soil pressure case quick replacement device |
| CN108331586A (en) * | 2018-02-14 | 2018-07-27 | 上海隧道工程有限公司 | Soil pressure case safe replacement device |
| CN211900608U (en) * | 2020-02-14 | 2020-11-10 | 中铁六局集团有限公司 | Soil pressure sensor changes auxiliary device |
Non-Patent Citations (1)
| Title |
|---|
| 王宝佳等: "盾构机的简易土压传感器检测装置", 《工程机械与维修》 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112924067B (en) | 2022-06-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109001053A (en) | Coal petrography dynamic impulsion destroys test macro under a kind of confining pressure and damp and hot coupling condition | |
| CN110186625B (en) | Central revolution body medium channel sealing performance detection device | |
| CN110823119B (en) | High-compaction inspection cabin measuring system based on vision-laser composite measurement | |
| US10082443B2 (en) | System and method for monitoring bearing health in a journal assembly | |
| CN108982208B (en) | Pressure type shield cutter head cutter abrasion detection device and application method thereof | |
| CN106321068B (en) | A kind of tube and casing in downhole ground detection sensor driving means | |
| CN109752141A (en) | A kind of mechanical seal product testing processing unit (plant) and method | |
| CN106643633A (en) | Landslide body deep part creep deformation monitoring device and measuring method thereof | |
| CN112924067B (en) | Soil pressure sensor changes device | |
| CN112647926A (en) | Sensor and measuring method for synchronously measuring bit pressure and torque of long-distance drilling rod | |
| CN103063467A (en) | Rotary pressure valve undisturbed soil sampler | |
| CN115597912A (en) | Novel underground coal seam airtight coring device | |
| CN109084921A (en) | A kind of push-bench tube coupling frictional resistance Detecting data and detection method | |
| CN210513039U (en) | High-pressure experiment cabin measuring system for vision-laser composite measurement | |
| US3763700A (en) | Hydraulic thrust indicator for rotatable shaft | |
| CN209356142U (en) | A kind of car deceleration device shell air tightness detection apparatus | |
| CN213779358U (en) | Bucket door reservoir pipeline water pressure real-time supervision device | |
| CN203561473U (en) | Hub bearing bolt pretightening force detection device | |
| CN206591548U (en) | Test specimen anchor in a kind of recyclable drilling | |
| CN210888922U (en) | Pressure maintaining cabin structure with glass window | |
| CN114739817A (en) | Bulk material triaxial Hopkinson confining pressure loading device | |
| CN104407164B (en) | A kind of dustproof and waterproof velometer | |
| CN106767382A (en) | The small-bore bidirectional two-dimensional floating adaptive mechanism of a kind of high temperature, high pressure down-hole pipe | |
| CN204371301U (en) | Down-hole high-temperature and high pressure electrochemistry measurement electrode device | |
| CN219064766U (en) | Pressure gauge set with bypass output |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |