Vibration test sensor for large-diameter shield tunneling machine
By designing a vibration test sensor combining distance measuring sensor and rotating table on a large diameter shield machine, the problem of difficulty in automatic detection of sensor installation position is solved, automatic detection and adjustment of sensor position is realized, and the accuracy and efficiency of vibration test are improved.
Patent Information
- Application Number
- CN202421232211.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-31
- Publication Date
- 2025-02-28
- Estimated Expiration
- 2034-05-31
AI Technical Summary
Existing vibration testing sensors cannot automatically detect the sensor installation position, resulting in inconvenient measurement or even inability to measure the sensor position when installed on large equipment such as shield machines.
A vibration testing sensor for a large diameter shield machine is designed. The combination of a distance measuring sensor and a rotating table is used to obtain the distance parameters from the reference surface through the distance measuring sensor, realize the position detection of the sensor in the shield machine, and adapt to different application scenarios through the rotation adjustment of the rotating table.
It realizes automatic detection and adjustment of the sensor position in the shield machine, avoids the problem of inconvenient position measurement after the sensor is installed, and improves the accuracy and efficiency of vibration testing.
Smart Images
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Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of shield machine testing, in particular to a vibration testing sensor for a large-diameter shield machine. Background Art
[0002] During the operation of the shield machine, it usually needs to face a complex working environment. In order to ensure that the working state of the shield machine meets the requirements, it is usually necessary to monitor the operating state of the core components of the shield machine (such as the main bearing) to ensure the normal operation and safety of the shield machine and provide the necessary basis for its fault diagnosis and fault prediction. For this reason, vibration test sensors are often installed on the shield machine. By collecting the vibration signals (acceleration signals) of the core components of the shield machine, the operating state of the main bearing of the shield machine can be monitored.
[0003] However, current vibration test sensors cannot automatically detect the sensor installation position. When conducting vibration tests on large equipment such as tunnel boring machines, the installation positions of sensors are limited due to spatial constraints. After the sensor is installed, the position of the vibration test sensor in the tunnel boring machine is often inconvenient to measure or even impossible to measure. Utility Model Content
[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a vibration test sensor for a large-diameter shield machine, which can measure the distance from a reference surface as required, thereby obtaining the position of the vibration test sensor in the shield machine.
[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:
[0006] A vibration test sensor for a large-diameter shield machine comprises: a vibration test sensor body, the vibration test sensor body comprises a shell, the upper surface of the shell is provided with a rotation groove; a rotating table, the bottom is provided with a rotating protrusion which is embedded in the rotating groove and can rotate and move, and the middle part of the peripheral wall of the rotating protrusion is provided with an annular groove; a rotating fixing piece, which is installed on the shell and is used to be embedded in the annular groove and press against the rotating table; a distance measuring sensor, which is installed on the rotating table and can rotate and adjust its position relative to the rotating table, and the rotation axis of the distance measuring sensor is perpendicular to the rotation axis of the rotating table.
[0007] Furthermore, the housing is provided with a first threaded hole corresponding to the annular groove, the first threaded hole extends to the peripheral wall of the rotation groove, and the rotation fixing member is a screw threadedly connected to the first threaded hole.
[0008] Furthermore, a first hinged ear and a second hinged ear which are spaced apart are provided at the upper end of the rotating platform, a rotating shaft member is passed through the first hinged ear and the second hinged ear, and the distance measuring sensor is sleeved on the rotating shaft member.
[0009] Furthermore, the rotating shaft component includes a column head, a first rotating shaft section, a torque transmission section and a second rotating shaft section, and the column head, the first rotating shaft section, the torque transmission section and the second rotating shaft section are coaxially connected in sequence, and the outer peripheral cross-sectional contours of the column head, the first rotating shaft section, the torque transmission section and the second rotating shaft section are reduced in sequence, the first hinged ear is provided with a first hinged hole adapted to the first rotating shaft section, the second hinged ear is provided with a second hinged hole adapted to the second rotating shaft section, and the distance measuring sensor sleeve is arranged on the torque transmission section to rotate synchronously with the rotating shaft component.
[0010] Furthermore, a second hinge hole extends from the outer end of the second rotating shaft segment and is provided with an annular groove. A tightening screw is installed on the rotating table. The tightening screw is used to extend into the annular groove to axially limit the rotating shaft component. The end of the tightening screw can be abutted against the second rotating shaft segment to fix the angle of the rotating shaft component.
[0011] Furthermore, a mounting block is provided on the second hinged ear, a second threaded hole is provided on the mounting block, and the tightening screw is threadedly connected to the second threaded hole.
[0012] Furthermore, a friction ring is embedded in the annular groove, and the end of the tightening screw is used to contact the friction ring.
[0013] Furthermore, the distance measuring sensor is provided with a rotating hole adapted to the torque transmission section, and the cross-sections of the rotating hole and the torque transmission section are both multi-deformable.
[0014] Furthermore, two raised magnetic feet are arranged at intervals at the bottom of the shell, which are used for magnetic attraction on the magnetic metal structure of the shield machine.
[0015] Furthermore, a hollow groove is provided at the bottom of the rotating protrusion.
[0016] The utility model has the following beneficial effects:
[0017] The distance parameter to the reference surface is obtained by using the distance measuring sensor, so as to obtain the position of the vibration test sensor in the shield machine; and the distance measuring sensor can be adjusted to be relative to the corresponding reference surface by rotating the rotating table in the rotating groove and rotating the distance measuring sensor, and can be adjusted according to the position of the reference surface to adapt to different application scenarios; and the rotating fixing piece is embedded in the annular groove to limit the rotating table, so as to prevent the rotating table from easily leaving the rotating groove, and the rotating table is fixed in position by tightening the rotating table with the rotating fixing piece.
[0018] In addition to the above-described purposes, features and advantages, the present invention has other purposes, features and advantages. The present invention will be further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:
[0020] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the utility model;
[0021] Figure 2 yes Figure 1 A magnified view of point A;
[0022] Figure 3 It is a schematic diagram of the structure of the exploded state of an embodiment of the utility model;
[0023] Figure 4 It is a schematic diagram of the exploded structure of the rotating table and the distance measuring sensor;
[0024] Figure 5 It is a partial cross-sectional view of an embodiment of the utility model.
[0025] Legend:
[0026] Vibration test sensor body 100, housing 110, rotation groove 111, first threaded hole 112, magnetic support foot 120, embedding groove 121;
[0027] Rotating table 200, rotating protrusion 210, annular groove 211, hollow groove 212, first hinge ear 220, first hinge hole 221, second hinge ear 230, second hinge hole 231, mounting block 232, second threaded hole 233, rotating shaft 240, column head 241, first rotating shaft section 242, torque transmission section 243, second rotating shaft section 244, annular groove 245, friction ring 246, and tightening screw 250;
[0028] Rotating fixture 300;
[0029] Distance measuring sensor 400 and shaft hole 410 . DETAILED DESCRIPTION
[0030] It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.
[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0032] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.
[0033] In addition, the descriptions of "first", "second", etc. in the present utility model are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.
[0034] Please refer to Figure 1 and Figure 2 A vibration test sensor for a large-diameter shield machine in a preferred embodiment of the present utility model includes a vibration test sensor body 100, a rotating table 200, a rotating fixture 300 and a distance measuring sensor 400.
[0035] The vibration test sensor body 100 includes a housing 110, and a rotation groove 111 is provided on the upper surface of the housing 110. A rotation protrusion 210 is provided at the bottom of the rotating platform 200, which is embedded in the rotation groove 111 and can rotate and move. An annular groove 211 is provided in the middle of the peripheral wall of the rotation protrusion 210; the cross section of the rotation groove 111 is circular, and the rotation protrusion 210 is adapted to the contour of the rotation groove 111, thereby realizing rotation guidance.
[0036] The rotating fixing member 300 is mounted on the housing 110, and is used to be embedded in the annular groove 211 and tighten the rotating table 200. The distance sensor 400 is mounted on the rotating table 200, and the distance sensor 400 can rotate and adjust its position relative to the rotating table 200. The rotation axis of the distance sensor 400 is perpendicular to the rotation axis of the rotating table 200, thereby realizing rotation adjustment in two dimensions, so that the distance sensor 400 can adapt to different application scenarios.
[0037] The utility model provides a vibration test sensor for a large-diameter shield machine, which uses a distance sensor 400 to obtain a distance parameter from a reference surface, thereby obtaining the position of the vibration test sensor in the shield machine; and the ranging sensor 400 can be adjusted to be opposite to the corresponding reference surface by rotating the rotating table 200 in a rotating groove 111 and rotating the ranging sensor 400, and can be adjusted according to the position of the reference surface to adapt to different application scenarios; and the rotating fixing member 300 is embedded in the annular groove 211 to limit the rotating table 200, thereby preventing the rotating table 200 from easily detaching from the rotating groove 111, and the rotating fixing member 300 is used to press the rotating table 200 to achieve the position fixation of the rotating table 200.
[0038] Reference Figure 3 and Figure 5 In some embodiments of the present invention, the housing 110 is provided with a first threaded hole 112 corresponding to the annular groove 211, and the first threaded hole 112 extends to the peripheral wall of the rotating groove 111. The rotating fixing member 300 is a screw threadedly connected to the first threaded hole 112. By tightening the screw, the end of the screw can be inserted into the annular groove 211 and abut against the inner wall of the annular groove 211, thereby fixing the position of the rotating platform 200. When adjustment is required, the rotating platform 200 can be rotated by only loosening the screw, without the screw completely withdrawing from the annular groove 211. At this time, the screw is embedded in the annular groove 211, and still plays a limiting role on the rotating platform 200, so that the rotating platform 200 is stable when rotating, and the position is stable when the rotation adjustment is convenient.
[0039] Reference Figure 3 and Figure 4 In some embodiments of the utility model, a first articulated ear 220 and a second articulated ear 230 are provided at an interval at the upper end of the rotating table 200, and a rotating shaft 240 is passed through the first articulated ear 220 and the second articulated ear 230. The distance measuring sensor 400 is sleeved on the rotating shaft 240 to realize the rotational movement installation of the distance measuring sensor 400, and the distance measuring sensor 400 is located between the first articulated ear 220 and the second articulated ear 230. The first articulated ear 220 and the second articulated ear 230 are used to axially limit the distance measuring sensor 400, so that it has only the degree of freedom of rotation, so that its axial position is stable, and there will be no axial position deviation resulting in errors in the measurement data.
[0040] Reference Figure 4In a further embodiment of the utility model, the rotating shaft member 240 includes a column head 241, a first rotating shaft section 242, a torque transmission section 243 and a second rotating shaft section 244. The column head 241, the first rotating shaft section 242, the torque transmission section 243 and the second rotating shaft section 244 are coaxially connected in sequence. The first hinge ear 220 is provided with a first hinge hole 221 adapted to the first rotating shaft section 242. The first rotating shaft section 242 is inserted into the first hinge hole 221 and can rotate in the hole. The second hinge ear 230 is provided with a second hinge hole 231 adapted to the second rotating shaft section 244. The second rotating shaft section 244 is inserted into the second hinge hole 231 and can rotate in the hole. The outer circumferential cross-sectional profiles of the column head 241, the first rotating shaft section 242, the torque transmission section 243 and the second rotating shaft section 244 are reduced in sequence, so that during installation, the torque transmission section 243 and the second rotating shaft section 244 can pass through the first hinge hole 221 in sequence, and the column head 241 cannot pass through the first hinge hole 221 and abuts against the side of the first hinge ear 220, thereby avoiding structural interference and facilitating installation. The rotating shaft member 240 can be directly inserted from the first hinge hole 221 until the column head 241 abuts against the side of the first hinge ear 220. The distance sensor 400 is sleeved on the torque transmission section 243 to rotate synchronously with the rotating shaft member 240.
[0041] Reference Figure 2 and Figure 4 In a further embodiment of the utility model, a second hinge hole 231 extends from the outer end of the second rotating shaft section 244 and is provided with an annular groove 245. A tightening screw 250 is installed on the rotating table 200. The tightening screw 250 is used to extend into the annular groove 245 to axially limit the rotating shaft member 240. The end of the tightening screw 250 can abut against the second rotating shaft section 244 to fix the angle of the rotating shaft member 240, so that the rotating shaft member 240 will not be axially withdrawn from the first hinge hole 221 and the second hinge hole 231, so that the rotating shaft member 240 is stably installed. When the ranging sensor 400 is adjusted to the desired position, the tightening screw 250 is tightened to tighten the rotating shaft member 240, so that the rotating shaft member 240 is subjected to greater pressure and will not rotate easily due to greater friction, thereby achieving angle fixation of the ranging sensor 400. Specifically, the distance sensor 400 is provided with an axial hole 410 adapted to the torque transmission section 243, and the cross-sections of the axial hole 410 and the torque transmission section 243 are both deformable, so that the distance sensor 400 can rotate with the rotating shaft 240, and the angle of the distance sensor 400 can be fixed by fixing the position of the rotating shaft 240.
[0042] Reference Figure 2 and Figure 4In a further embodiment of the utility model, a mounting block 232 is provided on the second hinged ear 230, a second threaded hole 233 is provided on the mounting block 232, and a tightening screw 250 is threadedly connected to the second threaded hole 233. The mounting block 232 facilitates hole processing and installation of the tightening screw 250.
[0043] Reference Figure 2 and Figure 4 In a further embodiment of the utility model, a friction ring 246 is embedded in the annular groove 245, and the end of the tightening screw 250 is used to contact the friction ring 246, thereby increasing the friction resistance, so that after the tightening screw 250 tightens the friction ring 246, the angle of the distance sensor 400 is more stable and firm, and the friction ring 246 can be made of rubber material. The friction ring 246 can be inserted into the annular groove 245 by deformation. In order to facilitate installation, the outer edge of the second shaft section 244 is chamfered.
[0044] Of course, in some other embodiments, the rotational activity adjustment and fixation of the distance sensor 400 can be achieved in other ways, such as making the first rotating shaft section 242 and the first hinge hole 221 as an interference fit, and the second rotating shaft section 244 and the second hinge hole 231 as an interference fit, and the angle of the distance sensor 400 is fixed by tight fit. When adjustment is required, after providing sufficient force to operate the distance sensor 400 to rotate to the desired position, the position is fixed by the tight fit effect of the interference fit. Of course, the distance sensor 400 can also be installed on the rotating table 200 by rotating the shaft, the position of the shaft and the rotating table 200 is fixed, and the distance sensor 400 can rotate relative to the shaft, and the hole position on the distance sensor 40 and the shaft are interference fit, and the position is fixed by tight fit.
[0045] In some embodiments of the utility model, two spaced-apart raised magnetic feet 120 are provided at the bottom of the shell 110 for magnetically attaching to the magnetic metal structure of the shield machine, and the magnetic feet 120 are permanent magnets.
[0046] like Figure 5 As shown, in some embodiments of the present invention, in order to reduce weight, a hollow groove 212 is provided at the bottom of the rotating protrusion 210 .
[0047] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.
Claims
1. A vibration test sensor for a large diameter shield machine, characterized in that: include: A vibration test sensor body (100), the vibration test sensor body (100) comprising a housing (110), the upper surface of the housing (110) being provided with a rotation groove (111); The rotating platform (200) has a rotating protrusion (210) at the bottom thereof which is embedded in the rotating groove (111) and can rotate and move, and an annular groove (211) is provided in the middle of the peripheral wall of the rotating protrusion (210); A rotating fixing member (300) is mounted on the housing (110) and is used to be embedded in the annular groove (211) and to press against the rotating platform (200); The distance measuring sensor (400) is installed on the rotating platform (200) and can rotate relative to the rotating platform (200) to adjust its position. The rotation axis of the distance measuring sensor (400) is perpendicular to the rotation axis of the rotating platform (200).
2. The vibration test sensor for a large diameter shield machine according to claim 1, characterized in that: The housing (110) is provided with a first threaded hole (112) corresponding to the annular groove (211), the first threaded hole (112) extending to the peripheral wall of the rotating groove (111), and the rotating fixing member (300) is a screw threadedly connected to the first threaded hole (112).
3. The vibration test sensor for a large diameter shield machine according to claim 1, characterized in that: A first hinged ear (220) and a second hinged ear (230) are provided at an upper end of the rotating platform (200), and a rotating shaft (240) is passed through the first hinged ear (220) and the second hinged ear (230). The distance measuring sensor (400) is sleeved on the rotating shaft (240) and is located between the first hinged ear (220) and the second hinged ear (230).
4. The vibration test sensor for a large diameter shield machine according to claim 3, characterized in that: The rotating shaft component (240) comprises a column head (241), a first rotating shaft section (242), a torque transmission section (243) and a second rotating shaft section (244); the column head (241), the first rotating shaft section (242), the torque transmission section (243) and the second rotating shaft section (244) are coaxially connected in sequence; the outer peripheral cross-sectional profiles of the column head (241), the first rotating shaft section (242), the torque transmission section (243) and the second rotating shaft section (244) decrease in sequence; the first hinge ear (220) is provided with a first hinge hole (221) adapted to the first rotating shaft section (242); the second hinge ear (230) is provided with a second hinge hole (231) adapted to the second rotating shaft section (244); and the distance measuring sensor (400) is sleeved on the torque transmission section (243) to rotate synchronously with the rotating shaft component (240).
5. The vibration test sensor for a large diameter shield machine according to claim 4, characterized in that: A second hinge hole (231) extends from the outer end of the second rotating shaft section (244) and is provided with an annular groove (245). A tightening screw (250) is installed on the rotating platform (200). The tightening screw (250) is used to extend into the annular groove (245) to axially limit the rotating shaft member (240). The end of the tightening screw (250) can abut against the second rotating shaft section (244) to fix the angle of the rotating shaft member (240).
6. The vibration test sensor for a large diameter shield machine according to claim 5, characterized in that: The second hinged ear (230) is provided with a mounting block (232), the mounting block (232) is provided with a second threaded hole (233), and the tightening screw (250) is threadedly connected to the second threaded hole (233).
7. The vibration test sensor for a large diameter shield machine according to claim 5 or 6, characterized in that: A friction ring (246) is embedded in the annular groove (245), and the end of the tightening screw (250) is used to contact the friction ring (246).
8. The vibration test sensor for a large diameter shield machine according to claim 4, characterized in that: The distance measuring sensor (400) is provided with a rotating hole (410) adapted to the torque transmission section (243), and the cross-sections of the rotating hole (410) and the torque transmission section (243) are both multi-deformable.
9. The vibration test sensor for a large diameter shield machine according to claim 1, characterized in that: The bottom of the housing (110) is provided with two spaced-apart raised magnetic feet (120) for magnetically attaching to the magnetic metal structure of the shield machine.
10. The vibration test sensor for a large diameter shield machine according to claim 1, characterized in that: A hollow groove (212) is provided at the bottom of the rotating protrusion (210).