A pipeline quality detection device for hydraulic engineering

Abstract

The application relates to the technical field of pipeline quality detection, in particular to a pipeline quality detection device for water conservancy projects, which comprises a base, a support frame is fixed on the base, two adjusting seats are arranged on the support frame, a clamping jaw assembly is arranged on each adjusting seat, one adjusting seat is fixed on the support frame, the other adjusting seat is slidingly arranged on the support frame and is driven to realize horizontal reciprocating movement through a driving mechanism arranged on the support frame, and the two clamping jaw assemblies are matched through a linkage structure. The pipeline position deviation can be eliminated when one clamping jaw assembly is used to clamp the pipeline and the other clamping jaw assembly is used to clamp the pipeline at the same time when the pipeline is intermittently conveyed, so that the detection reference point does not deviate when the pipeline is conveyed forward each time, the multi-section detection data can be aligned, and the defect positioning error amplification can be avoided to influence the detection precision.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of pipeline quality detection, and particularly relates to a pipeline quality detection device for water conservancy projects. BACKGROUND

[0002] In the production and manufacturing or service period detection of water conservancy pipeline, the pipeline needs to be subjected to segmented nondestructive detection (such as ultrasonic flaw detection and X-ray imaging), and due to the long length and large weight of part of the pipeline, intermittent step-by-step conveying of the pipeline needs to be realized by means of a clamping mechanism to meet the coverage requirement of a detection station. The existing typical conveying mode is as follows: traditional clamping jaw intermittent conveying process: (1) clamping stage: the clamping jaw is closed to clamp one end of the pipeline; (2) conveying stage: the clamping jaw is driven by a driving mechanism such as a cylinder or a lead screw to drive the pipeline to move forward by a fixed distance; (3) releasing stage: the clamping jaw is loosened to release the pipeline and retreat to the initial position; and (4) circulation stage: the above actions are repeated until the whole pipeline is covered.

[0003] Although the mode realizes the automatic conveying of the water pipeline, there are significant problems in the detection of the water conservancy pipeline, that is, pipeline reset deviation: after the clamping jaw is loosened, the pipeline is prone to axial deviation or radial rolling due to factors such as self-weight inertia, uneven friction of the supporting surface and pipeline roundness error, so that the detection reference point is deviated when the pipeline is clamped and conveyed forward again, the detection data of multiple sections cannot be aligned, and the defect positioning error is enlarged. Therefore, the application provides a pipeline quality detection device for water conservancy projects to solve the above problems. SUMMARY

[0004] The application aims to provide a pipeline quality detection device for water conservancy projects to solve the problems in the background.

[0005] To achieve the above object, the application provides the following technical scheme.

[0006] A pipeline quality detection device for water conservancy projects comprises a base, a supporting frame is fixed on the base, two adjusting seats are arranged on the supporting frame, a clamping jaw assembly is arranged on each adjusting seat for clamping and fixing the pipeline, one adjusting seat is fixed on the supporting frame, and the other adjusting seat is slidingly arranged on the supporting frame and is driven to realize horizontal reciprocating movement by a driving mechanism arranged on the supporting frame.

[0007] The two clamping jaw assemblies are matched by a linkage structure, when the clamping jaw assembly on one adjusting seat is clamped to the pipeline, the clamping jaw assembly on the other adjusting seat is loosened to the pipeline.

[0008] The utility model provides a pipeline quality detection device for hydraulic engineering, which has the advantages of simple structure, convenient operation, high efficiency, high accuracy and the like.

[0009] The utility model provides a pipeline quality detection device for hydraulic engineering, which has the advantages of simple structure, convenient operation, high efficiency, high accuracy and the like.

[0010] The utility model provides a pipeline quality detection device for hydraulic engineering, which has the advantages of simple structure, convenient operation, high efficiency, high accuracy and the like.

[0011] The utility model provides a pipeline quality detection device for hydraulic engineering, which has the advantages of simple structure, convenient operation, high efficiency, high accuracy and the like.

[0012] The utility model provides a pipeline quality detection device for hydraulic engineering, which has the advantages of simple structure, convenient operation, high efficiency, high accuracy and the like.

[0013] The utility model provides a pipeline quality detection device for hydraulic engineering, which has the advantages of simple structure, convenient operation, high efficiency, high accuracy and the like.

[0014] The utility model provides a pipeline quality detection device for hydraulic engineering, which has the advantages of simple structure, convenient operation, high efficiency, high accuracy and the like.

[0015] The utility model provides a pipeline quality detection device for hydraulic engineering, which has the advantages of simple structure, convenient operation, high efficiency, high accuracy and the like.

[0016] The surface of the clamping jaw is fixedly connected with an anti-skid sheet.

[0017] Compared with the prior art, the beneficial effects of the pipeline quality detection device for water conservancy projects are as follows: two adjusting seats are arranged on the support frame, each adjusting seat is provided with a clamping jaw assembly for clamping and fixing the pipeline, one adjusting seat is fixed on the support frame, and the other adjusting seat is slidingly arranged on the support frame and can be driven to move horizontally reciprocatingly through the driving mechanism; in addition, when the clamping jaw assembly on one adjusting seat clamps the pipeline, the clamping jaw assembly on the other adjusting seat releases the pipeline, that is, when the pipeline is detected, one clamping jaw assembly is released, the other clamping jaw assembly clamps one end of the pipeline, and the pipeline is driven to move forward by a fixed distance; then the pipeline is released, and one clamping jaw assembly clamps the pipeline, and the other clamping jaw assembly retreats to the starting position to clamp the pipeline again; at the same time, one clamping jaw assembly releases the pipeline, and the above-mentioned action is repeated until the whole pipeline is covered.

[0018] Therefore, the pipeline position deviation can be eliminated by clamping the pipeline with the other clamping jaw assembly when the clamping jaw assembly releases the pipeline during intermittent pipeline conveying, so that the detection reference point does not deviate when the pipeline is conveyed forward each time, the detection data of multiple sections can be aligned, and the detection precision is not affected by the magnified defect positioning error. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a first perspective overall structure schematic diagram of the pipeline quality detection device for water conservancy projects.

[0020] Figure 2 It is a second perspective overall structure schematic diagram of the pipeline quality detection device for water conservancy projects.

[0021] Figure 3 It is a partial structure schematic diagram of the pipeline quality detection device for water conservancy projects. Figure 2 after decomposition.

[0022] Figure 4 It is a partial structure schematic diagram of the pipeline quality detection device for water conservancy projects. Figure 3 after decomposition.

[0023] Figure 5 It is a structure schematic diagram of the clamping jaw assembly on one adjusting seat of the pipeline quality detection device for water conservancy projects.

[0024] Figure 6 It is a structure schematic diagram of the clamping jaw assembly on the other adjusting seat of the pipeline quality detection device for water conservancy projects.

[0025] Figure 7It is a local explosion structure schematic view of a pipeline quality detection device for water conservancy projects.

[0026] Figure 8 It is a local structure schematic view of a pipeline quality detection device for water conservancy projects. Figure 7

[0027] Figure 9 It is a structure schematic view of another perspective of a pipeline quality detection device for water conservancy projects. Figure 8

[0028] Figure 10 It is a local enlarged structure schematic view of a pipeline quality detection device for water conservancy projects. Figure 9

[0029] In the figure: 1, base; 2, support frame; 3, main shaft; 4, motor; 5, adjusting seat; 6, guide column; 7, air cylinder; 8, piston rod; 9, U-shaped frame; 10, clamping jaw; 11, pipeline; 12, lead screw; 13, sliding sleeve; 14, connecting rod; 15, first bevel gear; 16, first bevel gear ring; 17, second bevel gear; 18, second bevel gear ring; 19, sleeve; 20, key groove; 21, key block; 22, main shaft hole; 23, guide hole. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all.

[0031] Please refer to Figures 1-10 As an embodiment of the present application, a pipeline quality detection device for water conservancy projects comprises a base 1, the base 1 is fixed with a support frame 2, the support frame 2 is provided with two adjusting seats 5, each adjusting seat 5 is provided with a clamping jaw assembly for clamping and fixing the pipeline 11, one adjusting seat 5 is fixed on the support frame 2, and the other adjusting seat 5 is slidingly arranged on the support frame 2 and is driven to move horizontally reciprocatingly by a driving mechanism arranged on the support frame 2.

[0032] The two clamping jaw assemblies are matched through linkage structure, when the clamping jaw assembly on one adjusting seat 5 clamps the pipeline 11, the clamping jaw assembly on the other adjusting seat 5 releases the pipeline 11.

[0033] ​​​In the embodiment, two adjusting seats 5 are arranged on the support frame 2, and each adjusting seat 5 is provided with a clamping jaw assembly for clamping and fixing the pipeline 11, one adjusting seat 5 is fixed on the support frame 2, and the other adjusting seat 5 is slidingly arranged on the support frame 2 and can be driven to move horizontally reciprocatingly by a driving mechanism, and when the clamping jaw assembly of one adjusting seat 5 clamps the pipeline 11, the clamping jaw assembly of the other adjusting seat 5 releases the pipeline 11, that is, when the pipeline 11 is detected, one clamping jaw assembly is released, the other clamping jaw assembly closes to clamp one end of the pipeline 11, drives the pipeline 11 to move forward by a fixed distance, then releases the pipeline 11, and one clamping jaw assembly clamps the pipeline 11 again, and the other clamping jaw assembly retreats to the initial position to clamp the pipeline 11 again, and one clamping jaw assembly is released at the same time, and the above operation is repeated until the whole pipeline 11 is covered.

[0034] As a further scheme of the present application, the clamping jaw assembly comprises a U-shaped frame 9 fixed on the adjusting seat 5, two clamping jaws 10 are hingedly connected to the top of the U-shaped frame 9, a lead screw 12 is rotatably arranged on the U-shaped frame 9, a sliding sleeve 13 slidingly connected to the inside of the lead screw 12 is threadedly connected to the lead screw 12, and a connecting rod 14 is arranged between the sliding sleeve 13 and the clamping jaw 10, and the two ends of the connecting rod 14 are respectively hingedly connected to the clamping jaw 10 and the sliding sleeve 13.

[0035] In the embodiment, when the lead screw 12 is rotated, the sliding sleeve 13 moves axially along the lead screw 12 due to its sliding connection structure, that is, it is slidingly connected to the inside of the lead screw 12 (to prevent itself from rotating), and then drives the two clamping jaws 10 to open and close synchronously around the hinge point through the connecting rod 14, when the sliding sleeve 13 moves upward, the lower end of the clamping jaw 10 is pulled close by the connecting rod 14, and the upper end clamping part is closed to clamp the pipeline 11; when the sliding sleeve 13 moves downward, the upper end of the clamping jaw 10 is opened to release the pipeline 11.

[0036] As a further scheme of the present application, a main shaft 3 is rotatably arranged on the support frame 2, the lead screw 12 of one clamping jaw assembly and the main shaft 3 are driven through a first gear mechanism, the lead screw 12 of the other clamping jaw assembly and the main shaft 3 are driven through a second gear mechanism, and the main shaft 3 is rotated to synchronously rotate the lead screw 12.

[0037] In the embodiment, by driving the main shaft 3 to rotate, the lead screw 12 of one clamping jaw assembly and the main shaft 3 are driven through a first gear mechanism, and the lead screw 12 of the other clamping jaw assembly and the main shaft 3 are driven through a second gear mechanism, so that the lead screws 12 of the two clamping jaw assemblies can be synchronously driven to rotate, when the main shaft 3 rotates forward, one clamping jaw assembly is clamped, and the other clamping jaw assembly is released, and when the main shaft 3 rotates reversely, one clamping jaw assembly is released, and the other clamping jaw assembly is clamped.

[0038] As a further scheme of the present application, the main shaft 3 is provided with a guide column 6 on each side, which is fixed on the support frame 2, and the adjusting seat 5 is provided with a main shaft hole 22 and a guide hole 23, the main shaft 3 penetrates through the main shaft hole 22, and the guide column 6 penetrates through the guide hole 23.

[0039] In this embodiment, the inner diameter of the main shaft hole 22 is matched with the outer diameter of the main shaft 3, so that the main shaft 3 can provide the adjusting seat 5 with the possibility of axial movement, and the inner diameter of the guide hole 23 is matched with the outer diameter of the guide column 6, so that the guide column 6 is sleeved on the guide column 6, which ensures that the sliding adjusting seat 5 can only move smoothly and horizontally along the axial direction of the main shaft 3 and the guide column 6, i.e. the pipeline conveying direction, and is limited in other degrees of freedom.

[0040] As a further scheme of the present application, the support frame 2 is fixed with a motor 4, and the output end of the motor 4 is connected with the main shaft 3 through a shaft coupling to drive the main shaft 3 to rotate.

[0041] In this embodiment, the motor 4 is a power source for clamping action, and the motor 4 is electrically connected with an external power source through wires, and the starting of the motor 4 drives the main shaft 3 to rotate to cooperate with the gear mechanism to control the synchronous opening and closing state switching of the two clamping jaws 10 of the clamping jaw assembly.

[0042] As a further scheme of the present application, the first gear mechanism includes a first bevel gear 15 fixed on the main shaft 3 and a first bevel gear ring 16 fixed on the lead screw 12, and the first bevel gear 15 is engaged with the first bevel gear ring 16.

[0043] In this embodiment, when the main shaft 3 rotates, the first bevel gear 15 rotates, and by virtue of the engagement of the first bevel gear 15 with the first bevel gear ring 16, the rotation of the first bevel gear 15 drives the rotation of the first bevel gear ring 16, and the rotation of the first bevel gear ring 16 drives the synchronous rotation of the lead screw 12.

[0044] As a further scheme of the present application, the second gear mechanism includes a second bevel gear 17 rotatably installed on the adjusting seat 5 and slidably connected with the main shaft 3 through the sliding assembly, and a second bevel gear ring 18 fixed on the lead screw 12, and the second bevel gear 17 is engaged with the second bevel gear ring 18, and the second bevel gear 17 can slide on the main shaft 3 and can synchronously rotate with the main shaft 3 through the sliding assembly.

[0045] In this embodiment, the second gear mechanism adds a second bevel gear 17, which is connected with the main shaft 3 through a sliding assembly, and can rotate and transmit torque with the main shaft 3 while allowing itself to slide axially along the main shaft 3. It should be noted that the second bevel gear 17 is the same size as the first bevel gear 15 and is symmetrically distributed on the main shaft 3, that is, the rotation directions of the first bevel gear 16 and the second bevel gear 18 relative to the main shaft 3 are opposite when the main shaft 3 rotates. The design goal is that when the main shaft 3 drives the first bevel gear 16 on the lead screw 12 to rotate in a certain direction, the second bevel gear 18 on the other lead screw 12 rotates in the opposite direction, thereby realizing the clamping or loosening of the two jaw assemblies respectively.

[0046] As a further scheme of the present application, the sliding assembly includes a sleeve 19 fixed on the second bevel gear 17, and the second bevel gear 17 and the sleeve 19 are movably sleeved on the main shaft 3. The sleeve 19 is rotatably installed on the adjusting seat 5, and the inner wall of the sleeve 19 is provided with a key groove 20. The main shaft 3 is fixed with a key block 21, and the key block 21 is movably embedded and clamped in the key groove 20.

[0047] In this embodiment, the sliding assembly is a typical key groove or spline connection structure. The key block 21 is fixed with the main shaft 3, the key groove 20 is provided in the inner wall of the sleeve 19, and the key block 21 is embedded in the key groove 20, so that the sleeve 19 and the second bevel gear 17 fixed therewith can freely slide axially along the main shaft 3, but when the main shaft 3 rotates, the sleeve 19 and the second bevel gear 17 can be forced to rotate synchronously through the side surface contact of the key block 21 and the key groove 20, realizing the combination of power transmission and sliding function.

[0048] As a further scheme of the present application, the driving mechanism includes a gas cylinder 7 fixed on the support frame 2, and the output end of the gas cylinder 7 is provided with a piston rod 8, and the piston rod 8 is fixed with one of the adjusting seats 5.

[0049] In this embodiment, the gas cylinder 7 is electrically connected with the external power source through wires, and the start of the gas cylinder 7 can drive the piston rod 8 to extend and retract to drive the adjusting seat 5 to move. The gas cylinder 7 is the power source for driving the adjusting seat 5 and the jaw assembly thereon to move horizontally and reciprocally, and is responsible for the step conveying task of the pipeline 11.

[0050] As a further scheme of the present application, the surface of the jaw 10 is fixedly adhered with a non-slip sheet.

[0051] In this embodiment, the anti-skid piece increases the friction force of the contact surface between the clamping jaw 10 and the pipe 11, prevents the pipe 11 from slipping or rotating inside the clamping jaw 10 during the clamping and conveying process, and improves the stability and reliability of clamping and conveying. Meanwhile, the anti-skid piece is made of soft and elastic rubber material. When the clamping jaw 10 on one clamping jaw assembly slowly releases the pipe 11, the elastic anti-skid piece still has a clamping effect on the pipe 11, so that the clamping jaw 10 does not immediately cancel the fixation of the pipe 11 when it slowly opens, and the pipe 11 does not move axially and roll radially inside the clamping jaw 10, ensuring that the clamping jaw 10 on the other clamping jaw assembly can completely release the pipe 11.

[0052] The working principle of the present application is as follows:

[0053] S1, initial state: one adjusting seat 5 close to the driving mechanism is at the starting end of the stroke, the control system controls the start motor 4 to drive the main shaft 3 to rotate, the second gear mechanism drives the lead screw 12 to rotate, so that the other clamping jaw assembly clamps one end of the pipe 11, at the same time, the rotation of the main shaft 3 drives the lead screw 12 on one adjusting seat 5 to rotate in the opposite direction through the first gear mechanism, so that one clamping jaw assembly is in a released state;

[0054] S2, conveying stage: the control system controls the start cylinder 7 to push the adjusting seat 5 connected to the output end to move horizontally along the direction of the main shaft 3 and the guide column 6 by one step distance, because the clamping jaw on the other adjusting seat 5 clamps the pipe 11, and the clamping jaw on one adjusting seat 5 is released, so the entire pipe 11 is driven by the clamping jaw on the other adjusting seat 5 to move forward synchronously by the step distance;

[0055] S3, clamping switching stage: after the pipe 11 moves to the position, the control system starts the motor 4 again to reverse the main shaft 3, the reverse of the main shaft 3 drives the lead screw 12 to reverse, so that the other clamping jaw assembly releases the pipe 11, and at the same time, the lead screw 12 on one adjusting seat 5 is driven to rotate in the opposite direction through the first gear mechanism, so that one clamping jaw assembly clamps the pipe 11;

[0056] S4, reset stage: the control system controls the cylinder 7 to retract, drives the other adjusting seat 5 and the other clamping jaw assembly thereon to move synchronously to the starting position, because the other clamping jaw assembly is released at this time, it will not hinder the retreat of the other clamping jaw assembly. The key point is that this operation aims to "reset the clamping jaw position", and does not move the pipe 11 itself. During the retreat of the other clamping jaw assembly, the pipe 11 still stays at the position where the conveying ends, and the entire movement process is only the retreat of the other clamping jaw assembly itself and the other adjusting seat 5;

[0057] S5, clamping preparation again: after the other adjusting seat 5 is completely withdrawn to the initial end, the system is ready for the next conveying cycle, at this time the state becomes: one clamping jaw assembly is loosened, the other clamping jaw assembly is clamped and has returned to the initial position. Repeat step 2: start the air cylinder 7 again to push the other clamping jaw assembly to move forward, that is, to drive the pipe 11 to step forward the same distance again;

[0058] S6, cycle execution: repeat steps S1 to S5 until the entire length of the pipe 11 is conveyed by stepping and all segment detections are completed.

[0059] The above embodiments are exemplary but not restrictive, and the technical solutions of the present application can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application, which are all included in the present application.

Claims

1. A pipeline quality detection device for hydraulic engineering, comprising a base (1), characterized in that, The base (1) is fixed with a support frame (2), the support frame (2) is provided with two adjusting seats (5), each adjusting seat (5) is provided with a jaw assembly, for clamping and fixing the pipeline (11), one adjusting seat (5) is fixed on the support frame (2), the other adjusting seat (5) is slidably arranged on the support frame (2) and is driven to realize horizontal reciprocating movement by the driving mechanism arranged on the support frame (2); Two jaw assemblies are matched through linkage structure, when the jaw assembly on one adjusting seat (5) clamps the pipeline (11), the jaw assembly on the other adjusting seat (5) loosens the pipeline (11); The jaw assembly comprises a U-shaped frame (9) fixed on the adjusting seat (5), the top of the U-shaped frame (9) is hinged with two clamps (10), a lead screw (12) is rotatably arranged on the U-shaped frame (9), a sliding sleeve (13) is threadedly connected in the lead screw (12), a connecting rod (14) is arranged between the sliding sleeve (13) and the clamp (10), and the two ends of the connecting rod (14) are hinged with the clamp (10) and the sliding sleeve (13) respectively; The support frame (2) is rotatably provided with a main shaft (3), the lead screw (12) of one jaw assembly is driven by the first gear mechanism between the main shaft (3), and the lead screw (12) of the other jaw assembly is driven by the second gear mechanism between the main shaft (3), when the main shaft (3) rotates, the lead screw (12) rotates synchronously; The first gear mechanism comprises a first bevel gear (15) fixed on the main shaft (3) and a first bevel gear ring (16) fixed on the lead screw (12), and the first bevel gear (15) is engaged with the first bevel gear ring (16); the second gear mechanism comprises a second bevel gear (17) rotatably installed on the adjusting seat (5) and slidably connected with the main shaft (3) through a sliding assembly, and a second bevel gear ring (18) fixed on the lead screw (12), the second bevel gear (17) is engaged with the second bevel gear ring (18), and the second bevel gear (17) can slide on the main shaft (3) and rotate synchronously with the main shaft (3) through the sliding assembly; When in use, each adjusting seat is provided with a jaw assembly for clamping and fixing the pipeline, one adjusting seat is fixed on the support frame, the other adjusting seat is slidably arranged on the support frame and can be driven to realize horizontal reciprocating movement by the driving mechanism, and when the jaw assembly on one adjusting seat clamps the pipeline, the jaw assembly on the other adjusting seat loosens the pipeline, that is, when the pipeline is detected, one jaw assembly is loosened, the other jaw assembly is closed to clamp one end of the pipeline, the pipeline is driven to move forward by a fixed distance, then the pipeline is loosened, one jaw assembly clamps the pipeline, the other jaw assembly retreats to the initial position to clamp the pipeline again, one jaw assembly is loosened, and the above actions are repeated until the whole pipeline is covered.

2. The pipeline quality detection device for hydraulic engineering according to claim 1, characterized in that, The main shaft (3) is provided with a guide column (6) fixed on the support frame (2) on both sides, the adjusting seat (5) is provided with a main shaft hole (22) and a guide hole (23), the main shaft (3) penetrates through the main shaft hole (22), and the guide column (6) penetrates through the guide hole (23).

3. The pipeline quality detection device for hydraulic engineering according to claim 2, characterized in that, The support frame (2) is fixed with a motor (4), and the output end of the motor (4) is connected with the main shaft (3) through a shaft coupling to drive the main shaft (3) to rotate.

4. The pipeline quality detection device for hydraulic engineering according to claim 3, characterized in that, The sliding assembly comprises a sleeve (19) fixed on the second bevel gear (17), and the second bevel gear (17) and the sleeve (19) are movably sleeved on the main shaft (3); the sleeve (19) is rotatably installed on the adjusting seat (5); the inner wall of the sleeve (19) is provided with a key groove (20); and the main shaft (3) is fixed with a key block (21), and the key block (21) is movably embedded and clamped in the key groove (20).

5. The pipeline quality detection device for hydraulic engineering according to claim 1, characterized in that, The driving mechanism comprises a gas cylinder (7) fixed on the support frame (2), and the output end of the gas cylinder (7) is provided with a piston rod (8); and the piston rod (8) is fixed with the other adjusting seat (5).

6. The pipeline quality detection device for hydraulic engineering according to claim 1, characterized in that, The surface of the clamping jaw (10) is fixedly bonded with an anti-skid sheet.

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