Pressure pipeline vibration testing device

Abstract

The utility model belongs to the technical field of pipeline testing, and particularly relates to a pressure pipeline vibration testing device which comprises a shell, and an annular fixing ring is fixedly arranged on the inner side of the shell. Four fixing cylinders are arranged on the inner side wall of the fixing ring at equal intervals in a surrounding mode with the ring center of the fixing ring as the center, a telescopic cylinder is arranged on the inner side of each fixing cylinder in a sliding and penetrating mode, and the four telescopic cylinders synchronously move towards the position where the ring center of the fixing ring is located. After an operator drives a driving rod to rotate through a first hand rocker, a first worm and a rotating ring are driven to rotate through a driving bevel gear and a follow-up bevel gear, and the rotating rotating ring drives all screw rods to rotate at the same time through helical teeth and a helical gear, so that all telescopic cylinders move towards the position where the ring center of a fixing ring is located; and after the pipeline is lifted by the telescopic cylinder at the bottom, the ring center of the pipeline coincides with the ring center of the fixing ring, and the end points of the three vibration detection probes can just contact at the same time, so that the pipeline can be conveniently tested.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline testing, in particular to a vibration testing device for pressure pipelines. Background Technique

[0002] In the process of pipe fitting production, vibrating the pipeline for testing is a necessary step to verify whether the pipeline connection meets the connection standard requirements.

[0003] There are many devices for testing vibration on the market. For example, in the existing authorized patent, the publication (announcement) number: CN213336460U, a vibration detection device disclosed, belongs to the technical field of vibration detection, which includes a bottom plate, the upper surface of the bottom plate is fixedly connected to the lower surface of the top frame, a vibration detector is arranged on the right side surface of the top frame, and the vibration detector is electrically connected to three detection probes through connecting wires.

[0004] When testing components with the above-disclosed device, it is necessary to adjust the detection probes one by one so that the detection probes are in contact with the outer side of the component to be tested, and the adjustment is very inconvenient. Therefore, it is necessary to develop a vibration testing device for pressure pipelines. Content of the Utility Model

[0005] The purpose of this part is to outline some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Simplifications or omissions may be made in this part, as well as in the abstract and the title of the specification of this application, to avoid obscuring the purpose of this part, the abstract of the specification, and the title of the utility model, and such simplifications or omissions shall not be used to limit the scope of the utility model.

[0006] To solve the above technical problems, according to one aspect of the utility model, the following technical solutions are provided:

[0007] A vibration testing device for pressure pipelines, which includes:

[0008] A housing, an annular fixing ring is fixedly arranged inside the housing;

[0009] A fixing cylinder, four fixing cylinders are arranged on the inner side wall of the fixing ring at equal intervals around its own center of the ring. A telescopic cylinder is slidably penetrated through the inside of each fixing cylinder. The four telescopic cylinders move synchronously towards the position where the center of the fixing ring is located. A screw rod is screwed inside the telescopic cylinder away from the center of the fixing ring. The rod body of the screw rod rotatably passes through the outer side wall of the fixing ring with a clearance and an end part is provided with a helical gear. An annular rotating ring is rotatably arranged on the outer side wall of the fixing ring, and a circle of helical teeth engaging all the helical gears is arranged on the outer side wall of the rotating ring;

[0010] A vibration detector, the vibration detector includes three vibration detection probes for monitoring the pipeline;

[0011] A driving component, a driving component for driving the rotary ring to rotate is arranged on the outer side of the inner cavity of the housing and located outside the fixing ring;

[0012] A clamping component, a clamping component for clamping and fixing a pipeline is arranged at the top end of the lowest telescopic cylinder, and one end of each of the other three telescopic cylinders close to the center of the fixing ring is respectively connected with three vibration detection probes.

[0013] As a preferred scheme of a pressure pipeline vibration testing device according to the present utility model, wherein: symmetrically protruding limiting sliders are arranged on the side wall of one end of the telescopic cylinder far away from the center of the fixing ring, and symmetrically opened limiting chutes for the limiting sliders to fit and slide are arranged on the side wall of the inner cavity of the fixing cylinder.

[0014] As a preferred scheme of a pressure pipeline vibration testing device according to the present utility model, wherein: the driving component includes two "L"-shaped first fixing frames fixed on the outer side wall of the upper right corner of the fixing ring, a first worm is rotatably arranged on the side walls of the two first fixing frames, and a first worm gear meshing with the first worm is arranged on the outer side wall of the rotary ring.

[0015] As a preferred scheme of a pressure pipeline vibration testing device according to the present utility model, wherein: a driving rod is rotatably penetrated through the upper right corner of the housing, a driving bevel gear is arranged at one end of the driving rod located inside the housing cavity, one end of the first worm extends and rotatably penetrates through the side wall of the first fixing frame and is provided with a follower bevel gear meshing with the driving bevel gear, and a first hand rocker is arranged at one end of the driving rod located outside the housing.

[0016] As a preferred scheme of a pressure pipeline vibration testing device according to the present utility model, wherein: the clamping component includes a lifting plate fixed at the top end of the lowest telescopic cylinder, sliding openings are opened at the front and rear positions of the lifting plate where the vibration detection probes are located, a horizontal double-headed lead screw is rotatably arranged on the inner side walls of the two sliding openings, a horizontal wire sliding rod is fixedly arranged, clamping plates are symmetrically slidably installed on the left and right sides of the inner side of each sliding opening, the upper half of each clamping plate is in an arc shape for clamping the outer side wall of the pipeline, the front and rear same-side clamping plates are respectively screwed through the left and right sections of the rod body of a double-headed lead screw, and the side wall of the clamping plate is slidably penetrated through the rod body of the wire sliding rod.

[0017] As a preferred scheme of a pressure pipeline vibration testing device according to the present utility model, wherein: "L"-shaped second fixing frames are symmetrically arranged on the front and rear sides of the left side wall of the lifting plate, a second worm is rotatably arranged between the side walls of the two second fixing frames, the left ends of the two double-headed lead screws extend and rotatably penetrate through the left side wall of the lifting plate and are provided with second worm gears meshing with the second worm, and a second hand rocker is arranged at the front end of the second worm extending and rotatably penetrating through the front side wall of the second fixing frame.

[0018] As a preferred solution of a pressure pipeline vibration testing device according to the present utility model, wherein: an arc-shaped lifting plate is provided at the center of the top of the lifting plate, and the distance from the lowest point of the lifting plate to the center of the fixed ring is equal to the distance from the end points of the three vibration detection probes to the center of the fixed ring.

[0019] The beneficial effects of the present utility model are as follows: Place the pipeline on the lifting plate, drive the second worm to rotate through the second hand crank, and then drive two double-headed lead screws to rotate simultaneously through the second worm wheel, thereby reducing the distance between the two clamping plates to clamp and fix both sides of the pipeline. After the operator drives the driving rod to rotate through the first hand crank, the first worm and the rotating ring are driven to rotate through the driving bevel gear and the follower bevel gear. The rotating rotating ring drives all the screws to rotate simultaneously through the helical teeth and the helical gear, so that all the telescopic cylinders move towards the position where the center of the fixed ring is located; After the pipeline is lifted by the telescopic cylinder at the bottom and the center of the pipeline coincides with the center of the fixed ring, the end points of the three vibration detection probes can just contact simultaneously, thus facilitating the testing of the pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the present utility model will be described in detail below in conjunction with the drawings and detailed embodiments. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts. Among them:

[0021] Figure 1 is a schematic structural diagram of the present utility model;

[0022] Figure 2 is a schematic structural diagram of the internal components of the housing of the present utility model;

[0023] Figure 3 is the present utility model Figure 2 is a schematic structural diagram in the rear view direction;

[0024] Figure 4 is the present utility model Figure 2 is an exploded view of the fixed ring and the rotating ring in the present utility model;

[0025] Figure 5 is an overall view, an exploded view and a cross-sectional view of the fixed cylinder and other components of the present utility model;

[0026] Figure 6 is a schematic structural diagram of the clamping assembly of the present utility model;

[0027] Figure 7 is the present utility model Figure 6 is a schematic structural diagram in the upward view direction;

[0028] Figure 8 This is a schematic structural diagram of the pipeline of the present utility model after being clamped;

[0029] Figure 9 This is a schematic structural diagram of the vibration detection probe of the present utility model after contacting the outer side of the pipeline.

[0030] In the figure: housing 100, fixing ring 110, base 120, fixing cylinder 200, telescopic cylinder 210, screw rod 220, helical gear 230, rotating ring 240, helical teeth 250, limit slider 260, limit chute 270, vibration detector 300, vibration detection probe 310, wire passing hole 320, driving assembly 400, first fixing bracket 410, first worm 420, first worm gear 430, driving rod 440, driving bevel gear 450, follower bevel gear 460, first hand rocker 470, clamping assembly 500, lifting plate 510, lifting plate 511, sliding opening 520, clamping plate 530, double-headed lead screw 540, wire sliding rod 550, second fixing bracket 560, second worm 570, second worm gear 580, second hand rocker 590, pipeline 600. Specific embodiments

[0031] In order to make the above objects, features and advantages of the present utility model more obvious and understandable, the specific embodiments of the present utility model will be described in detail below with reference to the accompanying drawings.

[0032] In the following description, many specific details are set forth in order to fully understand the present utility model. However, the present utility model can also be implemented in other ways different from those described herein. Those skilled in the art can make similar generalizations without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed below.

[0033] Secondly, the present utility model will be described in detail with reference to the schematic diagrams. When describing the embodiments of the present utility model in detail, for the convenience of explanation, the cross-sectional views showing the device structure will be enlarged locally out of the general proportion, and the schematic diagrams are only examples and should not limit the scope of protection of the present utility model herein. In addition, in actual production, three-dimensional spatial dimensions including length, width and depth should be included.

[0034] In order to make the purpose, technical solution and advantages of the present utility model clearer, the embodiments of the present utility model will be further described in detail below with reference to the accompanying drawings.

[0035] Please refer to Figures 1-9 , which shows a schematic structural diagram of an embodiment of a pressure pipeline vibration testing device of the present utility model. Please refer to Figures 1-9 , and a detailed introduction to a pressure pipeline vibration testing device will be given.

[0036] A pressure pipeline vibration testing device includes a housing 100, and an annular fixing ring 110 is fixedly arranged inside the housing 100; the interior of the housing 100 and the fixing ring 110 is hollow, which is convenient for installing components;

[0037] Please refer to again Figures 1 to 5 , on the inner side wall of the fixing ring 110, four fixing cylinders 200 are arranged at equal intervals around its own ring center. A telescopic cylinder 210 is slidably penetrated through the inner side of each fixing cylinder 200. The four telescopic cylinders 210 move synchronously towards the position where the ring center of the fixing ring 110 is located. A screw rod 220 is screwed on the inner side of the telescopic cylinder 210 far away from the ring center of the fixing ring 110. The rod body of the screw rod 220 rotatably penetrates through the outer side wall of the fixing ring 110 with a clearance, and an end part is provided with a helical gear 230. An annular rotating ring 240 is rotatably arranged on the outer side wall of the fixing ring 110. A circle of helical teeth 250 that mesh with all the helical gears 230 is arranged on the outer side wall of the rotating ring 240; symmetrically protruding limit sliders 260 are arranged on the side wall of one end of the telescopic cylinder 210 far away from the ring center of the fixing ring 110. Limit sliding grooves 270 for the limit sliders 260 to fit and slide are symmetrically opened on the inner cavity side wall of the fixing cylinder 200. When the screw rod 220 rotates, due to the telescopic cylinder 210 being restricted by the limit sliders 260 and the limit sliding grooves 270, it cannot rotate by itself, but moves along the inner side wall of the fixing cylinder 200 towards the position where the ring center of the fixing ring 110 is located;

[0038] Please refer to again Figure 1 , the vibration detector 300 includes three vibration detection probes 310 for monitoring the pipeline; both the housing 100 and the vibration detector 300 are arranged on the top of the base 120. Threading holes 320 for the vibration detector 300 to route wires are opened on the side walls of the housing 100 and the screw rod 220. The vibration detection probes 310 are connected to the vibration detector 300 through wiring, and the wiring passes through the threading holes 320. This wiring is not shown in the figure;

[0039] Please refer to again Figures 2 to 4, on the outer side of the inner cavity of the housing 100 and located outside the fixed ring 110, there is a driving assembly 400 for driving the rotating ring 240 to rotate; the driving assembly 400 includes two "L"-shaped first fixing frames 410 fixed on the outer side wall of the upper right corner of the fixed ring 110. A first worm 420 is rotatably arranged on the side walls of the two first fixing frames 410. A first worm gear 430 meshing with the first worm 420 is arranged on the outer side wall of the rotating ring 240. A driving rod 440 is rotatably penetrated through the upper right corner of the housing 100. At one end of the driving rod 440 located inside the inner cavity of the housing 100, there is a driving bevel gear 450. One end of the first worm 420 extends and rotatably penetrates through the side wall of the first fixing frame 410 and is provided with a follower bevel gear 460 meshing with the driving bevel gear 450. At one end of the driving rod 440 located outside the housing 100, there is a first hand rocker 470. After the first hand rocker 470 drives the driving rod 440 to rotate, the first worm 420 and the rotating ring 240 are driven to rotate through the driving bevel gear 450 and the follower bevel gear 460. The rotating rotating ring 240 drives all the screw rods 220 to rotate simultaneously through the helical teeth 250 and the helical gear 230, so that all the telescopic cylinders 210 move towards the position where the center of the fixed ring 110 is located;

[0040] Please refer to again Figure 1 , Figures 6 to 9, a clamping assembly 500 for clamping and fixing a pipeline is provided at the top of the telescopic cylinder 210 at the bottommost. One end of the other three telescopic cylinders 210 close to the center of the fixing ring 110 is respectively connected to three vibration detection probes 310. The clamping assembly 500 includes a lifting plate 510 fixed to the top of the telescopic cylinder 210 at the bottommost. Slide openings 520 are formed in the front and rear positions of the lifting plate 510 where the vibration detection probes 310 are located. A transverse double-headed lead screw 540 is rotatably provided on the inner side walls of the two slide openings 520, and a transverse wire slide rod 550 is fixedly provided. On the left and right sides of the inner side of each slide opening 520, clamping plates 530 are slidably installed symmetrically. The upper half of the clamping plate 530 is in an arc shape for clamping the outer side wall of the pipeline 600. The two clamping plates 530 on the same side in the front and rear are respectively screwed through by the left and right sections of the rod body of a double-headed lead screw 540. The side wall of the clamping plate 530 is slidably penetrated by the rod body of the wire slide rod 550. "L"-shaped second fixing brackets 560 are symmetrically arranged on the front and rear sides of the left side wall of the lifting plate 510. A second worm 570 is rotatably provided between the side walls of the two second fixing brackets 560. There are two second worms 570 in total, and their ends are connected to form an integral body. The left ends of the two double-headed lead screws 540 extend and rotatably penetrate the left side wall of the lifting plate 510 and are provided with second worm wheels 580 meshing with the second worm 570. The front end of the second worm 570 extends and rotatably penetrates the front side wall of the second fixing bracket 560 and is provided with a second hand crank 590. Place the pipeline 600 on the lifting plate 510, drive the second worm 570 to rotate through the second hand crank 590, and then drive the two double-headed lead screws 540 to rotate simultaneously through the second worm wheels 580, so as to reduce the distance between the two clamping plates 530 and clamp and fix both sides of the pipeline 600.

[0041] An arc-shaped lifting plate 511 is provided at the center of the top of the lifting plate 510. The distance from the lowest point of the lifting plate 511 to the center of the fixing ring 110 is equal to the distance from the end points of the three vibration detection probes 310 to the center of the fixing ring 110. That is, the lowest point of the lifting plate 511 and the end points of the three vibration detection probes 310 are on a "circular ring". The end points of the vibration detection probes 310 refer to the parts where the vibration detection probes 310 contact the test pipeline 600, and the center of this "circular ring" coincides with the fixing ring 110, so that after the pipeline 600 is lifted by the telescopic cylinder 210 at the bottom and coincides with the center of the fixing ring 110, the end points of the three vibration detection probes 310 can just contact simultaneously.

[0042] During the specific use process, the pipeline 600 is placed on the lifting plate 511. The second hand rocker 590 drives the second worm 570 to rotate, and then the second worm gear 580 drives two double-headed lead screws 540 to rotate simultaneously, thereby reducing the distance between the two clamping plates 530 to clamp and fix both sides of the pipeline 600. After the operator drives the driving rod 440 to rotate through the first hand rocker 470, the driving bevel gear 450 and the follower bevel gear 460 drive the first worm 420 and the rotating ring 240 to rotate. The rotating rotating ring 240 drives all the screw rods 220 to rotate simultaneously through the helical teeth 250 and the helical gear 230, so that all the telescopic cylinders 210 move towards the position of the center of the fixed ring 110. After the pipeline 600 is lifted by the telescopic cylinders 210 at the bottom and the center of its ring coincides with the center of the fixed ring 110, the endpoints of the three vibration detection probes 310 can just contact simultaneously, thus facilitating the testing of the pipeline. One end of the pipeline 600 is welded with a flange, and the output end of the water pump is welded with another flange. The two flanges are connected by bolts and sealing gaskets to connect one end of the pipeline 600 with the output end of the water pump. After starting the water pump, the water body flows inside the pipeline 600, and the water body generates vibration when flowing through the pipeline 600, and the vibration detector 300 receives the vibration frequency data output by the vibration detection probe 310.

[0043] Reference can be made to the prior art, a device liquid discharge process monitoring device and method disclosed in the Chinese authorized invention publication number CN201910087390.3. The vibration detector 300 in this embodiment can be regarded as the data processing device in the disclosed patent.

[0044] Although the present utility model has been described above with reference to the embodiments, various improvements can be made to it and components therein can be replaced with equivalents without departing from the scope of the present utility model. In particular, as long as there is no structural conflict, the various features in the embodiments disclosed by the present utility model can be combined with each other in any way. The exhaustive description of these combinations is not given in this specification only for the sake of saving space and resources. Therefore, the present utility model is not limited to the specific embodiments disclosed in the text, but includes all technical solutions falling within the scope of the claims.

Claims

1. A pressure pipeline vibration testing device, characterized in that, Including: A housing (100), and an annular fixing ring (110) is fixedly arranged on the inner side of the housing (100); A fixing cylinder (200), four fixing cylinders (200) are arranged at equal intervals around the center of the inner side wall of the fixing ring (110) with its own center of the ring as the center. A telescopic cylinder (210) is slidably penetrated through the inner side of each fixing cylinder (200). The four telescopic cylinders (210) move synchronously towards the position where the center of the fixing ring (110) is located. A screw rod (220) is screwed on the inner side of the telescopic cylinder (210) away from the center of the fixing ring (110). The rod body of the screw rod (220) rotatably penetrates through the outer side wall of the fixing ring (110) with a clearance and an end part is provided with a helical gear (230). An annular rotating ring (240) is rotatably arranged on the outer side wall of the fixing ring (110). A circle of helical teeth (250) meshing with all the helical gears (230) is arranged on the outer side wall of the rotating ring (240); A vibration detector (300), and the vibration detector (300) includes three vibration detection probes (310) for monitoring the pipeline; A driving component (400), and a driving component (400) for driving the rotating ring (240) to rotate is arranged on the outer side of the fixing ring (110) in the inner cavity of the housing (100); A clamping component (500), and a clamping component (500) for clamping and fixing the pipeline is arranged at the top end of the telescopic cylinder (210) at the bottommost. One ends of the other three telescopic cylinders (210) close to the center of the fixing ring (110) are respectively connected to the three vibration detection probes (310).

2. The pressure pipeline vibration testing device according to claim 1, characterized in that: Symmetrically protruding limiting sliders (260) are arranged on the side wall of one end of the telescopic cylinder (210) away from the center of the fixing ring (110). Symmetrically opened limiting chutes (270) for the limiting sliders (260) to fit and slide are arranged on the side wall of the inner cavity of the fixing cylinder (200).

3. The pressure pipeline vibration testing device according to claim 1, characterized in that: The driving component (400) includes two "L"-shaped first fixing frames (410) fixed on the outer side wall of the upper right corner of the fixing ring (110). A first worm (420) is rotatably arranged on the side walls of the two first fixing frames (410). A first worm gear (430) meshing with the first worm (420) is arranged on the outer side wall of the rotating ring (240).

4. The pressure pipeline vibration testing device according to claim 3, characterized in that: A driving rod (440) rotatably penetrates through the upper right corner of the housing (100). One end of the driving rod (440) located in the inner cavity of the housing (100) is provided with a driving bevel gear (450). One end of the first worm (420) extends and rotatably penetrates through the side wall of the first fixing frame (410) and is provided with a follower bevel gear (460) meshing with the driving bevel gear (450). A first hand rocker (470) is arranged on the end of the driving rod (440) located outside the housing (100).

5. The pressure pipeline vibration testing device according to claim 1, characterized in that: The clamping assembly (500) includes a lifting plate (510) fixed to the top end of the telescopic cylinder (210) at the bottommost. The lifting plate (510) is provided with sliding openings (520) at the front and rear positions of the vibration detection probe (310). The inner side walls of the two sliding openings (520) are respectively rotatably provided with a transverse double-headed lead screw (540) and fixedly provided with a transverse wire sliding rod (550). The inner sides of each sliding opening (520) are symmetrically and slidably installed with clamping plates (530) left and right. The upper half of the clamping plate (530) is in an arc shape for clamping the outer side wall of the pipeline (600). The two clamping plates (530) on the same side front and rear are respectively screwed through by the left and right sections of the rod body of a double-headed lead screw (540). The side wall of the clamping plate (530) is slidably penetrated by the rod body of the wire sliding rod (550).

6. The pressure pipeline vibration testing device according to claim 5, characterized in that: The left side wall of the lifting plate (510) is symmetrically provided with "L"-shaped second fixing brackets (560) front and rear. A second worm (570) is rotatably provided between the side walls of the two second fixing brackets (560). The left ends of the two double-headed lead screws (540) extend and rotatably penetrate the left side wall of the lifting plate (510) and are provided with second worm wheels (580) meshing with the second worm (570). The front end of the second worm (570) extends and rotatably penetrates the front side wall of the second fixing bracket (560) and is provided with a second hand crank (590).

7. The pressure pipeline vibration testing device according to claim 5, characterized in that: The top center of the lifting plate (510) is provided with an arc-shaped lifting plate (511). The distance from the lowest point of the lifting plate (511) to the center of the fixed ring (110) is equal to the distance from the end points of the three vibration detection probes (310) to the center of the fixed ring (110).

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