Maximum deflection monitoring device for flexural member of underwater gate

Abstract

The utility model discloses an underwater gate flexural member maximum deflection monitoring device, which comprises a first protective steel pipe and a second protective steel pipe, a middle receiver is fixedly arranged between the first protective steel pipe and the second protective steel pipe, and one end of the first protective steel pipe far away from the middle receiver is fixedly connected with a linear laser generator. According to the utility model, the light spot position detectors in the middle receiver and the tail receiver are arranged in a mirror image manner, so that the linear laser generator can irradiate light spots to the middle receiver and the tail receiver at the same time; receiving measurement of different positions of a light spot is achieved, the steel pipe serves as a protection unit, in-service monitoring of the gate during underwater operation is achieved, and interference of ambient light is avoided; the linear CCD is adopted to directly receive light spots for position judgment, so that the detection precision can be improved; and the monitoring range is increased by adopting a linear CCD array combination mode.

Description

Technical Field

[0001] The utility model belongs to the technical field of gate detection, and specifically relates to a monitoring device for the maximum deflection of underwater gate flexural members. Background Technique

[0002] In the design and manufacture of steel gates, it is required to monitor the maximum deflection of flexural members to meet the stiffness requirements of the gates during operation. However, there is currently no monitoring method for the deflection of gate flexural members. The main reasons are as follows: on the one hand, the gate needs to operate not only in the natural environment but also underwater. Therefore, the monitoring methods in the natural environment alone or underwater alone have their own advantages and disadvantages, but neither can be applied to the gate. On the other hand, the gate is in a free state in the gate slot, the support points are not fixed, and when under the action of water pressure, the flexural member will deform as a whole, that is, it deflects downward in the middle and warps upward at both ends. At this time, it is necessary to obtain the elevations of both support endpoints and the elevation of the point to be measured simultaneously. By connecting the point to be measured with the two support points, calculate the distance from the point to the line, and then calculate the deflection value. For this reason, this application proposes a monitoring device for the maximum deflection of underwater gate flexural members. Content of the Utility Model

[0003] The purpose of the utility model is to provide a monitoring device for the maximum deflection of underwater gate flexural members to solve the problems mentioned in the background technique.

[0004] To solve the above problems, the utility model provides a technical solution:

[0005] A monitoring device for the maximum deflection of underwater gate flexural members includes a first protective steel pipe and a second protective steel pipe. A middle receiver is fixedly installed between the first protective steel pipe and the second protective steel pipe. One end of the first protective steel pipe away from the middle receiver is fixedly connected with a one-word laser generator, and a tail receiver is fixedly installed at one end of the second protective steel pipe away from the first protective steel pipe.

[0006] Both the middle receiver and the tail receiver include a follower support, a barrel frame, a PCB circuit board, a linear CCD, and a light shielding plate. The barrel frame is detachably installed inside the follower support. A partition is fixedly connected inside the barrel frame. A PCB circuit board is installed below the partition inside the barrel frame. A linear CCD is fixed on the PCB circuit board. A light shielding plate is installed above the partition inside the barrel frame.

[0007] Preferably, a wire cover is detachably connected inside the follower support, and the wire cover is located at one end of the barrel frame.

[0008] Preferably, bases are provided at the bottoms of the linear laser generator, the middle receiver and the tail receiver, fixing members are fixedly connected to both sides of the linear laser generator, the middle receiver and the tail receiver, and fastening bolts are in threaded connection between the bases and the fixing members.

[0009] Preferably, a tail cover is fixedly connected inside the tail receiver.

[0010] Preferably, the inner barrel frames of the middle receiver and the tail receiver are arranged at mirror image positions.

[0011] The beneficial effects of the present utility model are as follows:

[0012] 1. By arranging the spot position detectors inside the middle receiver and the tail receiver in a mirror image manner, the linear laser generator can simultaneously irradiate spots onto the middle receiver and the tail receiver, realizing the reception and measurement of different positions of a single spot;

[0013] 2. Using steel pipes as protection units, in-service monitoring during the underwater operation of the gate is achieved, and interference from ambient light is avoided;

[0014] 3. The form of directly receiving spots by a linear CCD is adopted for position judgment, which can improve the detection accuracy;

[0015] 4. The range of monitoring is increased by adopting the combination method of linear CCD arrays;

[0016] 5. The split design and on-site assembly form enable rapid application on large gate components. Description of the Drawings

[0017] For ease of explanation, the present utility model will be described in detail by the following specific embodiments and accompanying drawings.

[0018] Figure 1 is the overall structural schematic diagram of the present utility model;

[0019] Figure 2 is the exploded schematic diagram of the middle receiver and the tail receiver of the present utility model;

[0020] Figure 3 is the installation schematic diagram of the middle receiver and the tail receiver of the present utility model;

[0021] Figure 4 is the test principle diagram of the present utility model.

[0022] In the figure: 1. First protective steel pipe; 2. Second protective steel pipe; 3. Linear laser generator; 4. Middle receiver; 5. Tail receiver; 6. Tail cover; 7. Base; 8. Fastening bolt; 9. Fixing part; 101. Follow-up support; 102. Cylinder frame; 103. Wire cover; 104. Partition board; 105. PCB circuit board; 106. Linear CCD; 107. Light shield. Specific implementation mode

[0023] In the description of the embodiments of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the embodiments of the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In the description of the embodiments of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific situations.

[0024] In the embodiments of the present invention, unless otherwise clearly specified and limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0025] In the description of this specification, the description referring to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the embodiments of the present utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0026] The following combines Figures 1-4 to describe the specific embodiments of the present utility model:

[0027] Embodiment 1:

[0028] The maximum deflection monitoring device for the flexural member of the underwater gate includes a first protective steel pipe 1 and a second protective steel pipe 2. A middle receiver 4 is fixedly installed between the first protective steel pipe 1 and the second protective steel pipe 2. One end of the first protective steel pipe 1 away from the middle receiver 4 is fixedly connected with a one-word laser generator 3. One end of the second protective steel pipe 2 away from the first protective steel pipe 1 is fixedly installed with a tail receiver 5. And the inner barrel frames 102 of the middle receiver 4 and the tail receiver 5 are arranged in a mirror image position, and after the barrel frames 102 are installed, they do not exceed half of the inner cavity circular cross-sectional area of the middle receiver 4 or the tail receiver 5, so that the one-word laser generator 3 can simultaneously irradiate the light spot to the middle receiver 4 and the tail receiver 5, realizing the reception and measurement of different positions of a light spot;

[0029] Both the middle receiver 4 and the tail receiver 5 include a follower bracket 101, a barrel frame 102, a PCB circuit board 105, a linear CCD 106, and a light shield 107. The barrel frame 102 is detachably installed inside the follower bracket 101. A partition 104 is fixedly connected inside the barrel frame 102. A PCB circuit board 105 is installed below the partition 104 inside the barrel frame 102. A linear CCD 106 is fixed on the PCB circuit board 105. A light shield 107 is installed above the partition 104 inside the barrel frame 102. Since the one-word laser generator 3 runs inside the first protective steel pipe 1 and the second protective steel pipe 2, the laser will be reflected when it irradiates on the pipe wall, affecting the detection accuracy. A light shield 107 is installed in front of the linear CCD 106, which can filter out unnecessary reflected light and avoid light interference.

[0030] Among them, a wire cover 103 is detachably connected inside the follower bracket 101, and the wire cover 103 is located at one end of the barrel frame 102, which can seal the follower bracket 101 to improve the waterproof effect of the device.

[0031] Among them, bases 7 are provided at the bottoms of the one - dimensional laser generator 3, the middle receiver 4, and the tail receiver 5. Fixing members 9 are fixedly connected to both sides of the one - dimensional laser generator 3, the middle receiver 4, and the tail receiver 5. A fastening bolt 8 is threadedly connected between the base 7 and the fixing member 9, which facilitates the installation of the assembled device on the gate to be measured.

[0032] Among them, a tail cover 6 is fixedly connected inside the tail receiver 5.

[0033] Embodiment 2:

[0034] Determine the position of the base 7 for installing the single-character laser generator 3, the middle receiver 4 and the tail receiver 5, and measure the distance from the single-character laser generator 3 to the middle receiver 4 and the distance from the middle receiver 4 to the tail receiver 5, and cut the first protective steel pipe 1 and the second protective steel pipe 2 according to the measured length; sleeve the two ends of the follower bracket 101 for the middle receiver 4 onto the cut first protective steel pipe 1 and the second protective steel pipe 2, and weld them around the joints; sleeve the follower bracket 101 for the tail receiver 5 onto one end of the second protective steel pipe 2, and weld them around the joints; sleeve the single-character laser generator 3 onto the first protective steel pipe 1 and the second protective steel pipe 2, and weld them around the joints. The other end of a protective steel pipe 1 is welded around the joint; the three bases 7 are welded to the gate component to be tested along the U-shaped bottom according to the position of the S1 lofting; the PCB circuit board 105 is placed inside the drum frame 102, and a light shielding plate 107 is installed at the surface photosensitive part of the linear CCD 106, and the wires are led out through the wire hole of the drum frame 102; the assembled drum frame 102 is placed inside the middle receiver 4 follower bracket 101 and the tail receiver 5 follower bracket 101 respectively, and the directions are rotated respectively so that the photosensitive surface of the linear CCD 106 faces the side of the one-word laser generator 3; the middle receiver 4 The outgoing wires of the middle and tail receivers 5 are led out through the wire holes of the follower bracket 101, and sealant is poured around the tops and outgoing wire ends of the middle and tail receivers 5 and cured; the assembled deflection detection device is hoisted onto the welded base 7 and connected with the fastening bolts 8 to complete the circuit connection and test; the linear laser generator 3 is started, and the horizontal laser it emits simultaneously hits the linear CCD106 arranged vertically on the middle and tail receivers 4, generating a spot image on the pixels of the linear CCD106; the linear CCD106 is used as a photosensitive device, and TCD1304 is taken as an example. 3648 pixels are integrated within a linear range of 29.1mm. This device uses a combination of three linear CCD106 photosensitive devices for spot position detection, with a measuring range of up to 87.3mm and a minimum resolution of 8um. By calculating the position of the spot image of the middle receiver 4 and the tail receiver 5 on the linear CCD106, it can be used for precise positioning. When the linear CCD106 vertically descends or ascends with the bending of the device, the spot image will synchronously change between different pixel points of the linear CCD106. By calculating the difference in the position of the pixel points, the value of the descent or ascent of the measuring point can be accurately obtained.

[0035] The middle receiver 4 is set as the measurement position, and the tail receiver 5 is set as the reference position. The detected difference and the distance between the laser generator 3 and the middle detection position, and the distance between the middle detection position and the tail detection position are comprehensively calculated;

[0036] For example: the initial value of the measurement position is A1, and the value after the component is deformed is A2;

[0037] The initial value of the reference position is B1, and the value after the component is deformed is B2;

[0038] The distance between the one - word laser generator 3 and the measurement position is D1, and the distance between the measurement position and the reference position is D2.

[0039] Then the maximum deflection of the measurement position is:

[0040]

[0041] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. Monitoring device for maximum deflection of underwater gate flexural members, characterized in that, It includes a first protective steel pipe (1) and a second protective steel pipe (2). A middle receiver (4) is fixedly installed between the first protective steel pipe (1) and the second protective steel pipe (2). One end of the first protective steel pipe (1) away from the middle receiver (4) is fixedly connected with a one-dimensional laser generator (3). One end of the second protective steel pipe (2) away from the first protective steel pipe (1) is fixedly installed with a tail receiver (5). Both the middle receiver (4) and the tail receiver (5) include a follower bracket (101), a barrel frame (102), a PCB circuit board (105), a linear CCD (106) and a light shield (107). The barrel frame (102) is detachably installed inside the follower bracket (101). A partition plate (104) is fixedly connected inside the barrel frame (102). A PCB circuit board (105) is installed below the partition plate (104) inside the barrel frame (102). A linear CCD (106) is fixed on the PCB circuit board (105). A light shield (107) is installed above the partition plate (104) inside the barrel frame (102).

2. The maximum deflection monitoring device for the flexural member of the underwater gate according to claim 1, wherein A wire cover (103) is detachably connected inside the follower bracket (101), and the wire cover (103) is located at one end of the barrel frame (102).

3. The maximum deflection monitoring device for the flexural member of the underwater gate according to claim 1, characterized in that, Bases (7) are provided at the bottoms of the one-dimensional laser generator (3), the middle receiver (4) and the tail receiver (5). Fixing members (9) are fixedly connected to both sides of the one-dimensional laser generator (3), the middle receiver (4) and the tail receiver (5). Tightening bolts (8) are threadedly connected between the bases (7) and the fixing members (9).

4. The maximum deflection monitoring device for the flexural member of the underwater gate according to claim 1, characterized in that, A tail cover (6) is fixedly connected inside the tail receiver (5).

5. The maximum deflection monitoring device for the flexural member of the underwater gate according to claim 1, characterized in that The barrel frames (102) inside the middle receiver (4) and the tail receiver (5) are arranged in a mirror image position.

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