A shock sensor mounting for attachment to a boom-type tunneling machine

Abstract

The application belongs to the technical field of tunnel geological prediction, and particularly relates to a vibration sensor loading seat connected with a cantilever type tunneling machine, which comprises a loading assembly and a stabilizing assembly. The loading assembly comprises a seat body and a first bolt. The seat body comprises a mounting plate, a mounting cylinder arranged on the upper side of the mounting plate, and a bolt connecting cylinder arranged on the mounting cylinder. The side surface of the bolt connecting cylinder is provided with a first external spline. A first bolt column is threadedly connected in the bolt connecting cylinder for fastening the vibration sensor in the mounting cylinder. The stabilizing assembly comprises a lifting piece, a limiting piece, and an elastic assembly. The elastic assembly is arranged on the seat body for enabling the lifting piece to have a tendency to move away from the side of the mounting cylinder. The vibration sensor loading seat can stably assemble the vibration sensor, so that the vibration sensor can stably detect vibration and improve the data accuracy. In addition, the vibration sensor can be smoothly disassembled, and the vibration sensor can be effectively protected from falling and breaking during disassembly.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of tunnel geological prediction, and particularly relates to a vibration sensor loading seat for connection with a cantilever type tunneling machine. BACKGROUND

[0002] In the process of tunnel construction, due to the complex and changeable geological bodies in front of the working face, adverse geological conditions such as faults, karst caves, fracture zones, underground rivers and high ground stress are often encountered. If the geological conditions in front cannot be grasped in time, geological disasters such as collapse, water inrush, rock burst and roof fall, and even mudslides may occur. Therefore, an advanced geological warning system of a tunneling machine is used in the process of tunnel construction to make a prediction of the geological bodies in front. In such a warning system, a vibration sensor (usually a three-component sensor) as shown in the accompanying drawings is often arranged on the cantilever of the tunneling machine to detect vibration. The vibration sensor is approximately cylindrical, and its rear end is connected with a data line. In order to stably load such a vibration sensor on the tunneling machine, a vibration sensor loading seat for connection with a cantilever type tunneling machine is proposed. Figure 1 SUMMARY

[0003] To overcome the problems in the related art, the present application discloses a vibration sensor loading seat for connection with a cantilever type tunneling machine.

[0004] To achieve the above-mentioned purpose, one technical scheme adopted by the present application is as follows:

[0005] A vibration sensor loading seat for connection with a cantilever type tunneling machine, comprising a loading assembly and a stabilizing assembly, the loading assembly comprising a seat body and a first bolt, the seat body comprising a mounting plate, a mounting cylinder provided on the upper side of the mounting plate, and a bolt connection cylinder provided on the mounting cylinder, a first external spline being provided on the side surface of the bolt connection cylinder, the first bolt comprising a first shank and a first head, a second external spline being provided on the side surface of the first head, the first shank being threadedly connected in the bolt connection cylinder for fastening a vibration sensor in the mounting cylinder;

[0006] The stabilizing assembly comprises a lifting piece, a limiting piece and an elastic assembly, the lifting piece having a sliding hole provided therethrough, the sliding hole having an internal spline capable of engaging with the first external spline and the second external spline, the lifting piece being longitudinally slidably assembled outside the mounting cylinder through the sliding hole, the limiting piece being provided on the seat body for limiting the sliding distance of the lifting piece away from the mounting cylinder, and the elastic assembly being provided on the seat body for enabling the lifting piece to have a tendency to move away from the mounting cylinder;

[0007] ​When the first stud fastens the shock sensor in the mounting cylinder, the second external spline is axially aligned with the first external spline, and the lifting piece slides to abut against the limiting piece under the elastic force of the elastic assembly, the internal spline will be engaged with the first external spline and the second external spline at the same time.

[0008] Further, the lifting piece includes a lifting plate and a hook, the sliding hole is opened on the lifting plate, the hook is arranged on the lifting plate, and the elastic assembly includes a rotating frame elastically connected to the seat body;

[0009] When the rotating frame is hooked with the hook, the rotating frame will drive the lifting plate to move away from the mounting cylinder side through the hook;

[0010] When the rotating frame is not hooked with the hook, the rotating frame will be turned over to the opening side of the mounting cylinder until it abuts against the mounting surface of the seat body.

[0011] Further, the rotating frame includes two rotating arms and a connecting rod, the two rotating arms are respectively connected to the left and right ends of the mounting cylinder, and a torsion spring is arranged on the connecting shaft between the rotating arm and the mounting cylinder. The torsion spring is used to cooperate with the mounting plate to make the rotating arm have a tendency to turn over to the opening side of the mounting cylinder, and the connecting rod is arranged between the two rotating arms.

[0012] Further, the connecting rod has a receiving recess in the middle.

[0013] Further, the loading assembly has two first bolts, and the two first bolts are of the same specification, the seat body has two bolt connecting cylinders arranged side by side along the length direction of the mounting cylinder, and the first studs of the two first bolts are respectively threadedly connected in the two bolt connecting cylinders to jointly fasten the shock sensor in the mounting cylinder.

[0014] The lifting plate has two sliding holes, and the two sliding holes are of the same specification, and the lifting plate is longitudinally and slidingly connected with the two bolt connecting cylinders through the two sliding holes.

[0015] Further, the hook is connected with the lifting plate and located between the two sliding holes.

[0016] Further, the loading assembly further includes a pressing block, the mounting cylinder is provided with a pressing block sliding groove in communication with the two bolt connecting cylinders, and the pressing block is longitudinally slidingly arranged in the pressing block sliding groove.

[0017] Further, the end of the pressing block away from the bolt connecting cylinder is a circular arc surface matched with the shock sensor.

[0018] Furthermore, the limiting component is defined as a second bolt, which includes a second stud and a second head. The lifting plate has a clearance through hole, and the mounting cylinder has a bolt connection hole. The second stud passes through the clearance through hole and is threaded into the bolt connection hole.

[0019] Furthermore, the end of the first bolt head away from the first bolt post has an internal hexagonal groove.

[0020] This invention discloses a vibration sensor mounting base for connection with a cantilever tunneling machine. The vibration sensor mounting base can securely mount the vibration sensor so that the vibration sensor can stably detect vibration and improve data accuracy. In addition, it can also easily remove the vibration sensor and prevent the vibration sensor from falling and being damaged during disassembly, thus effectively protecting the vibration sensor. Attached Figure Description

[0021] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0022] Figure 1 Here is a schematic diagram of the structure of a vibration sensor in the prior art:

[0023] Figure 2 This is a schematic diagram of an embodiment of the present invention installed on the boom of a tunneling machine;

[0024] Figure 3 for Figure 2 Enlarged structural diagram at point A;

[0025] Figure 4 for Figure 3 Enlarged structural diagram at point B;

[0026] Figure 5 This is a partial structural cross-sectional view of an embodiment of the present invention;

[0027] Figure 6 for Figure 5 Enlarged structural diagram at point C;

[0028] Figure 7 This is a schematic diagram of the structure of the seat in one embodiment of the present invention;

[0029] Figure 8 This is a schematic diagram of the lifting plate in one embodiment of the present invention;

[0030] Figure 9 This is a schematic diagram of the structure of the pressure block in one embodiment of the present invention;

[0031] Figure 10A structure schematic view of a rotating frame in an embodiment of the present application;

[0032] Figure 11 A structure schematic view of a first bolt in an embodiment of the present application;

[0033] Figure 12 A structure schematic view of a torsion spring in an embodiment of the present application;

[0034] Figure 13 A structure schematic view of a hook in an embodiment of the present application.

[0035] The meanings of the respective reference signs in the drawings are as follows:

[0036] Loading assembly 1, seat body 11, mounting plate 111, mounting cylinder 112, pressing block sliding groove 1121, bolt connection cylinder 113, first bolt 12, first bolt column 121, first bolt head 122, internal hexagonal groove 1221, pressing block 13, stabilizing assembly 2, lifting piece 21, lifting plate 211, sliding hole 2111, hook 212, limiting piece 22, second bolt column 221, second bolt head 222, elastic assembly 23, rotating frame 231, rotating arm 2311, connecting rod 2312, torsion spring 232, vibration sensor 3, data line 31, tunneling machine cantilever 4, tunneling machine cutter 41. DETAILED DESCRIPTION

[0037] The present application will be further described below in conjunction with the drawings.

[0038] Referring to Figures 2-13 The present embodiment is a vibration sensor loading seat for connecting with a cantilever type tunneling machine, as shown in the drawings, which comprises a loading assembly 1 and a stabilizing assembly 2, the loading assembly 1 comprising a seat body 11 and a first bolt 12.

[0039] The seat body 11 comprises a mounting plate 111, a mounting cylinder 112 and a bolt connecting cylinder 113. In the embodiment, three circular holes are arranged side by side on the left and right sides of the mounting plate 111, which are used to assemble fastening bolts to be fixed with the boom 4 of the tunneling machine. In addition, in other embodiments, the mounting plate 111 can also be fixed with the boom 4 of the tunneling machine by welding. In the embodiment, the mounting cylinder 112 is fixed on the upper side of the mounting plate 111, and the number of the bolt connecting cylinder 113 is two, which are fixed side by side on the mounting cylinder 112. The side surface of the bolt connecting cylinder 113 has a first external spline formed by 60 vertical grooves. In the embodiment, the number of the first bolt 12 is also two, which comprises a first shank 121 and a first head 122. The side surface of the first head 122 has a second external spline formed by 60 vertical grooves. The first head 122 has an internal hexagonal groove 1221 at the end away from the first shank 121. The outer diameter of the first head 122 is the same as that of the bolt connecting cylinder 113. The two first shanks 121 are respectively threadedly connected in the two bolt connecting cylinders 113 to fasten the vibration sensor 3 in the mounting cylinder 112.

[0040] In order to uniformly press the vibration sensor 3, in the embodiment, the loading assembly 1 further comprises a pressing block 13. The mounting cylinder 112 is provided with a pressing block sliding groove 1121 communicating with the two bolt connecting cylinders 113. The pressing block 13 is longitudinally slidingly assembled in the pressing block sliding groove 1121. The end of the pressing block 13 away from the bolt connecting cylinder 113 is a circular arc surface matched with the vibration sensor 3. When the vibration sensor 3 is fastened, the vibration sensor 3 is inserted from the opening end of the bolt connecting cylinder 113, and then the internal hexagonal wrench is inserted into the internal hexagonal groove 1221 to rotate the bolt connecting cylinder 113, so that the first shank 121 abuts against the pressing block 13, and the pressing block 13 abuts against the vibration sensor 3. After the two first bolts 12 are tightened, the pressing block 13 can clamp the vibration sensor 3 in the bolt connecting cylinder 113. Since the pressing block 13 can generate a large contact area with the vibration sensor 3, the vibration sensor 3 is not easy to be damaged due to uneven clamping force distribution.

[0041] The stabilizing assembly 2 comprises a lifting piece 21, a limiting piece 22 and an elastic assembly 23.

[0042] In the embodiment, the lifting piece 21 comprises a lifting plate 211 and a hook 212. The lifting plate 211 has two sliding holes 2111 arranged through the lifting plate 211. The two sliding holes 2111 are of the same specification and have internal splines capable of engaging with the first external spline and the second external spline. The lifting plate 211 is longitudinally slidingly connected with the two bolt connecting cylinders 113 through the two sliding holes 2111 respectively. The hook 212 is hinged to the lifting plate 211 and located between the two sliding holes 2111.

[0043] In the embodiment, the limiting piece 22 is arranged on the seat body 11 to limit the sliding distance of the lifting piece 21 away from the mounting cylinder 112. Specifically, the limiting piece 22 is defined as a second bolt, and the embodiment has two second bolts, each of which includes a second shank 221 and a second head 222. The lifting plate 211 has two accommodating through holes arranged side by side with the two sliding holes 2111, and the mounting cylinder 112 also has two bolt connection holes. The two second shanks 221 pass through the two accommodating through holes respectively and are threadedly connected in the corresponding bolt connection holes.

[0044] In the embodiment, the elastic assembly 23 includes a rotating frame 231 elastically connected to the seat body 11. Specifically, the rotating frame 231 includes two rotating arms 2311 and a connecting rod 2312. The two rotating arms 2311 are connected to the left and right ends of the mounting cylinder 112 respectively. A torsion spring 232 is arranged on the connecting shaft between the rotating arm 2311 and the mounting cylinder 112. The torsion spring 232 is used in cooperation with the mounting plate 111 to make the rotating arm 2311 have a tendency to turn over to the opening side of the mounting cylinder 112. The connecting rod 2312 is fixedly connected between the two rotating arms 2311, specifically at the end of the rotating arm 2311 away from the torsion spring 232. The middle part of the connecting rod 2312 has an accommodating recess. The accommodating recess is formed by bending the connecting rod 2312. The accommodating recess is arranged to limit the hooking position of the hook 212 in the transverse direction. In addition, the accommodating recess can also leave a space for accommodating the data line 31 of the vibration sensor 3 in the subsequent process. The data line 31 can also be transversely constrained to limit the position.

[0045] In the initial state, the rotating frame 231 is observed in the state that the mounting plate 111 faces downward. Under the elastic force of the two torsion springs 232, the rotating frame 231 turns over to the opening side of the mounting cylinder 112 until the two rotating arms 2311 abut against the edges of the mounting plate 111.

[0046] When the vibration sensor loading seat is installed on the boom 4 of the tunneling machine, the mounting plate 111 of the seat body 11 is fastened to the side wall of the boom 4 of the tunneling machine by a plurality of fastening bolts. During installation, the opening of the mounting cylinder 112 faces away from the tunneling machine cutter 41. In addition, the sensor loading seat is preferably installed on the lower side of the boom 4 of the tunneling machine to avoid the vibration sensor 3 on the subsequent sensor loading seat from being hit by the falling rocks on the top wall of the tunnel. After installation, the end of the rotating frame 231 away from the torsion spring 232 abuts against the lower side wall of the boom 4 of the tunneling machine under the action of the torsion spring 232, that is, the two rotating arms 2311 do not abut against the edges of the mounting plate 111.

[0047] When the vibration sensor 3 is installed on the vibration sensor loading seat, the vibration sensor 3 is inserted into the installation cylinder 112, and at this time, the bolt connection cylinder 113 is in an inverted state, so the lifting plate 211 needs to be pushed upward to be higher than the lower end of the bolt connection cylinder 113, then the two first bolts 12 are tightened, the pressing block 13 clamps the vibration sensor 3, when tightening, the second outer spline of the two first bolt heads 122 is overlapped and aligned with the two first inner splines respectively, then the lifting plate 211 is slid downward, the inner splines in the sliding hole 2111 are engaged with the first inner splines and the second outer splines at the same time, then the rotating frame 231 is flipped to the side of the tunneling machine cutter 41, and at the same time, the hook 212 is controlled to be hooked on the accommodating inner recess in the middle of the connecting rod 2312, after the hooking is completed, the user's hand releases the two components, then the hook 212 will keep the trend of downward movement under the flipping action of the rotating frame 231, that is, the lifting plate 211 slides downward to abut against the second bolt head 222, because the lifting plate 211 is engaged with the first outer spline of the bolt connection cylinder 113 through the inner spline in the sliding hole 2111, so the lifting plate 211 cannot rotate relative to the bolt connection cylinder 113, and the lifting plate 211 is engaged with the second outer spline on the side of the first bolt head 122 through the inner spline in the sliding hole 2111, so the first bolt 12 cannot rotate relative to the bolt connection cylinder 113, so the loosening of the first bolt 12 can be effectively inhibited, so that the vibration sensor 3 can stably detect vibration and improve data accuracy.

[0048] It is worth mentioning that the vibration sensor loading seat designed in this way can also smoothly remove the vibration sensor 3 when stably assembling the vibration sensor 3, when disassembling, the hook 212 and the rotating frame 231 are unhooked, then the rotating frame 231 is loosened, the rotating frame 231 will rebound away from the side of the tunneling machine cutter 41 under the elastic force of the torsion spring 232, and the data line 31 of the vibration sensor 3 is also on this side, so the connecting rod 2312 of the rotating arm 2311 will clamp the data line 31 at the lower end of the tunneling machine cantilever 4, so as to avoid that when the opening of the bolt connection cylinder 113 is downwardly inclined, the vibration sensor 3 is instantly dropped out of the bolt connection cylinder 113 under the action of gravity after the two first bolts 12 are loosened, so as to avoid that the vibration sensor 3 is dropped and broken. When the vibration sensor 3 is removed, the worker holds the data line 31 with one hand and turns the rotating frame 231 with the other hand.

[0049] In summary, the vibration sensor loading seat for connecting with a cantilever tunneling machine is disclosed, which can stably assemble the vibration sensor, so that the vibration sensor can stably detect vibration and improve data accuracy, in addition, the vibration sensor can also be smoothly removed, and when disassembling, the vibration sensor can be prevented from being dropped and broken, so the vibration sensor can be effectively protected.

Claims

1. A shock sensor mounting for attachment to a boom-type tunneling machine, characterized by: The loading assembly comprises a seat body and a first bolt, the seat body comprises a mounting plate, a mounting cylinder arranged on the upper side of the mounting plate, and a bolt connecting cylinder arranged on the mounting cylinder, a first external spline is arranged on the side of the bolt connecting cylinder, the first bolt comprises a first shank and a first head, a second external spline is arranged on the side of the first head, and the first shank is threadedly connected in the bolt connecting cylinder for fastening the vibration sensor in the mounting cylinder; The stabilizing assembly comprises a lifting piece, a limiting piece, and an elastic assembly, the lifting piece has a sliding hole arranged therethrough, the sliding hole has an internal spline capable of engaging with the first external spline and the second external spline, the lifting piece is longitudinally slidably arranged outside the mounting cylinder through the sliding hole, the limiting piece is arranged on the seat body for limiting the sliding distance of the lifting piece away from the mounting cylinder, and the elastic assembly is arranged on the seat body for enabling the lifting piece to have a tendency to move away from the mounting cylinder. When the first shank fastens the vibration sensor in the mounting cylinder, the second external spline is axially aligned with the first external spline, and the lifting piece slides to abut against the limiting piece under the elastic force of the elastic assembly, the internal spline simultaneously engages with the first external spline and the second external spline. The lifting piece comprises a lifting plate and a hook, the sliding hole is arranged on the lifting plate, the hook is arranged on the lifting plate, and the elastic assembly comprises a rotating frame elastically hinged to the seat body. When the rotating frame is hooked with the hook, the rotating frame drives the lifting plate to move away from the mounting cylinder through the hook. When the rotating frame is not hooked with the hook, the rotating frame is flipped to the opening side of the mounting cylinder until abutting against the mounting surface of the seat body. The rotating frame comprises two rotating arms and a connecting rod, the two rotating arms are respectively hinged to the left and right ends of the mounting cylinder, a torsion spring is arranged on the hinge shaft between the rotating arm and the mounting cylinder, the torsion spring is used in cooperation with the mounting plate to enable the rotating arm to have a tendency to flip to the opening side of the mounting cylinder, and the connecting rod is arranged between the two rotating arms.

2. A shock sensor mounting for attachment to a boom-type excavation machine according to claim 1, characterized in that: The middle part of the connecting rod has a receiving recess.

3. A shock sensor mounting for attachment to a boom-type excavating machine according to claim 1, wherein: The loading assembly has two first bolts, the two first bolts have the same specifications, the seat body has two bolt connecting cylinders arranged side by side along the length direction of the mounting cylinder, and the first shanks of the two first bolts are respectively threadedly connected in the two bolt connecting cylinders to jointly fasten the vibration sensor in the mounting cylinder. The lifting plate has two sliding holes, the two sliding holes have the same specifications, and the lifting plate is longitudinally slidably connected with the two bolt connecting cylinders through the two sliding holes respectively.

4. A shock sensor mounting for attachment to a boom-type trencher according to claim 2, wherein: The hook is hinged to the lifting plate and located between the two sliding holes.

5. A shock sensor mounting bracket for attachment to a boom-type trencher as defined in claim 2, wherein: The loading assembly further comprises a pressing block, the mounting cylinder is provided with a pressing block sliding groove in communication with the two bolt connecting cylinders, and the pressing block is longitudinally slidably arranged in the pressing block sliding groove.

6. A shock sensor mounting for attachment to a boom-type excavation machine according to claim 5, wherein: The pressing block is a circular arc surface matched with the vibration sensor at one end away from the bolt connection cylinder.

7. A shock sensor loading seat for connection with a boom-type excavator according to any one of claims 1 to 6, characterized in that: The limiting member is a second bolt, the second bolt comprises a second shank and a second head, the lifting plate has a clearance through hole, the mounting cylinder has a bolt connection hole, and the second shank penetrates through the clearance through hole and is threadedly connected in the bolt connection hole.

8. A shock sensor loading seat for connection with a boom-type excavator according to any one of claims 1 to 6, characterized in that: The first head has an internal hexagonal groove at one end away from the first shank.

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