A test tool for water pressure test of corrugated roller

Abstract

This utility model discloses a testing fixture for water pressure testing of corrugated rolls, including a support frame, a movable frame, a drive assembly, and a fastening assembly. The movable frame is rotatably connected to the support frame, and the drive assembly is fixedly installed on the support frame and driven by the movable frame to drive the movable frame to rotate and tilt. During testing, the corrugated roll to be tested is placed in the clamping slot of the movable frame. The clamp of the fastening assembly clamps one end of a chain, which spans across the corrugated roll. The tension of the chain is adjusted by adjusting the screw to lock and fix the corrugated roll. The drive assembly drives the movable frame to rotate and tilt according to the testing requirements, so that all local areas of the corrugated roll can fully experience the water pressure, eliminating the testing blind spots of the fixed clamping method and improving the comprehensiveness and accuracy of the test results. This testing fixture for water pressure testing of corrugated rolls achieves efficient and accurate testing through the reasonable layout of the support frame, movable frame, drive assembly, and fastening assembly.

Description

Technical Field

[0001] This utility model relates to the field of corrugated roll water pressure testing fixtures, and in particular to a testing fixture for corrugated roll water pressure testing. Background Technology

[0002] In the production of corrugated rolls, hydrostatic testing is a core step in evaluating the roll's sealing performance and structural strength. The quality of this testing directly affects the operational safety and service life of the corrugated rolls during subsequent use, thus imposing stringent requirements on the reliability and comprehensiveness of the testing equipment. However, current commercially available traditional testing equipment exhibits numerous insurmountable technical shortcomings in practical applications, severely limiting the accuracy and efficiency of hydrostatic testing.

[0003] Traditional testing fixtures generally lack flexible angle adjustment capabilities, and most use fixed support structures to limit the corrugated rolls, resulting in the rolls remaining in a static horizontal or vertical state throughout the testing process. In this static testing mode, the test medium can only act on the roll surface in a single direction, failing to cover all circumferential areas of the roll. This easily creates blind spots, especially for minute leaks, weld defects, or structural weaknesses that may exist when the roll is tilted or at specific angles. It is difficult to simulate the real working conditions of corrugated rolls under multi-directional loads in actual working scenarios, thus making it impossible to comprehensively evaluate the sealing performance and structural stability of the rolls.

[0004] It is evident that existing technologies still need improvement and enhancement. Utility Model Content

[0005] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a test fixture for water pressure testing of corrugated rolls, which aims to solve the technical problem that the fixed structure of the test fixture in the prior art makes it difficult to comprehensively evaluate the sealing performance and structural stability of the corrugated roll.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A testing fixture for hydrostatic testing of corrugated rolls includes a support frame, a movable frame, a drive assembly, and a fastening assembly. The movable frame is rotatably connected to the support frame, and the drive assembly is fixedly installed on the support frame and driven by the movable frame to drive the movable frame to rotate and tilt. The movable frame is provided with a clamping slot for clamping the corrugated roll to be tested. The fastening assembly is provided on the movable frame for locking and fixing the corrugated roll to be tested in the clamping slot. The fastening assembly includes a chain, an adjusting screw, and a clamp. The adjusting screw is connected to one side of the movable frame, and the clamp is connected to the other side of the movable frame. The two ends of the chain are detachably connected to the adjusting screw and the clamp, respectively. During clamping, the chain engages with the clamping slot along the circumference of the corrugated roll to be tested to achieve fixation.

[0007] The test fixture for corrugated roll hydrostatic testing includes a fixed block, a movable block, and bolts. The fixed block is fixedly connected to one side of the movable frame, and the movable block is connected to the fixed block by bolts to clamp one end of the chain between the movable block and the fixed block.

[0008] The test fixture for corrugated roll hydrostatic testing includes a fixed block with a plurality of first protrusions arranged in an array on the side near the movable block, and a first clearance groove between the plurality of first protrusions; the movable block with a plurality of second protrusions arranged in an array on the side near the fixed block, and a second clearance groove between the plurality of second protrusions; the plurality of first protrusions and the plurality of second protrusions are arranged in a one-to-one correspondence and mutually abut against each other to clamp and fix the chain in the gap of the chain; the first clearance groove and the second clearance groove are correspondingly arranged to form a receiving hole for accommodating the chain.

[0009] The test fixture for the water pressure test of corrugated rolls has a reinforcing plate fixedly installed on the side of the movable frame away from the clamp. The reinforcing plate has a through hole, and the adjusting screw is inserted into the through hole.

[0010] The aforementioned test fixture for corrugated roll hydrostatic testing includes a support frame comprising a worktable, on which a drive assembly is fixedly mounted.

[0011] The aforementioned test fixture for corrugated roll hydrostatic testing includes a movable frame with a main shaft fixedly mounted thereon, and bearings are respectively fitted at both ends of the main shaft.

[0012] The test fixture for corrugated roll hydraulic pressure testing includes a support frame with two bearing seats located on both sides of the movable frame, and the bearings at both ends of the main shaft are installed in the two bearing seats respectively.

[0013] The test fixture for corrugated roll hydraulic pressure testing includes a drive assembly comprising a motor and a reducer, wherein the motor drives and connects to the reducer, and the reducer drives and connects to one end of the main shaft.

[0014] The test fixture for hydrostatic testing of corrugated rolls is provided with rubber pads embedded in the groove wall of the clamping slot.

[0015] Beneficial effects: This invention provides a testing fixture for hydrostatic testing of corrugated rolls, including a support frame, a movable frame, a drive assembly, and a fastening assembly. The fastening assembly adopts a combination structure of an adjusting screw, a chain, and a clamp. During clamping, the corrugated roll to be tested is placed in the clamping slot of the movable frame. The tension of the chain can be flexibly adjusted by adjusting the screw, so that the chain fits tightly with the clamping slot along the circumference of the corrugated roll. This design can adapt to corrugated rolls of different diameters and can achieve a firm lock by means of the flexible fit of the chain and the rigid adjustment of the screw, effectively preventing the corrugated roll from shifting or shaking during the test, and providing a stable and reliable clamping foundation for hydrostatic testing. Meanwhile, the movable frame and support frame are rotatably connected, and the rotation and tilting are driven by a drive component fixed on the support frame. During testing, there is no need to repeatedly disassemble and assemble the corrugated rolls. Simply adjusting the tilt angle of the movable frame according to the testing requirements via the drive component allows the corrugated rolls to rotate synchronously. This ensures that all local areas, such as the outer circumference and end joints of the corrugated rolls, can fully withstand the water pressure, eliminating testing blind spots inherent in traditional fixed clamping methods and improving the comprehensiveness and accuracy of test results. Furthermore, the overall tooling components are rationally laid out and have a simple structure. Clamping can be quickly completed by adjusting the screws and chains, and angle adjustment is automatically driven by the drive component. The operation process is simple and easy to understand, facilitating not only manufacturing and daily maintenance but also making it widely applicable to water pressure testing scenarios for different types of corrugated rolls. This significantly reduces clamping auxiliary time and manual operation intensity, avoiding potential damage to the corrugated rolls caused by repeated disassembly and assembly, thus improving testing efficiency while reducing the investment and operating costs of enterprise testing equipment. Attached Figure Description

[0016] Figure 1 A three-dimensional structural schematic diagram of the testing fixture provided by this utility model; Figure 2 A three-dimensional structural diagram of the movable frame provided by this utility model; Figure 3 A three-dimensional structural diagram of the clamp provided by this utility model; Figure 4 A schematic diagram of the assembly structure of the fixing block and chain provided by this utility model.

[0017] Figure label: 1—Support frame 2—Modible frame 3—Drive assembly 4—Fastening assembly 11—Workbench 12—Bearing seat 21—Clamping slot; 22—Reinforcing plate; 23—Spindle 24—Rubber pad; 31—Motor; 32—Gear reducer 41—Chain 42—Adjusting screw 43—Clamp 431—Fixed block; 432—Modible block; 433—Bolt 4311—First protrusion; 4312—First clearance groove; 4313—Limiting block 4321—Second protrusion; 4322—Second clearance groove; 4323—Limiting groove. Detailed Implementation

[0018] This utility model provides a testing fixture for hydraulic pressure testing of corrugated rolls. To make the purpose, technical solution, and effects of this utility model clearer and more explicit, the following describes this utility model in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0019] In the description of this utility model, it should be understood that the terms "upper," "lower," "left," and "right," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or a specific orientational structure and operation. Therefore, they should not be construed as limitations on this utility model. Furthermore, "first" and "second" are only for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "multiple" means two or more.

[0020] Please see Figures 1 to 4As shown, this utility model provides a testing fixture for hydrostatic testing of corrugated rolls, which includes a support frame 1, a movable frame 2, a drive assembly 3, and a fastening assembly 4. The movable frame 2 is rotatably connected to the support frame 1, and the drive assembly 3 is fixedly installed on the support frame 1 and drivenly connected to the movable frame 2 to drive the movable frame 2 to rotate and tilt. The movable frame 2 is provided with a clamping groove 21 for clamping the corrugated roll to be tested. The fastening assembly 4 is provided on the movable frame 2 for locking and fixing the corrugated roll to be tested in the clamping groove 21. The fastening assembly 4 includes a chain 41, an adjusting screw 42, and a clamp 43. The adjusting screw 42 is connected to one side of the movable frame 2, and the clamp 43 is connected to the other side of the movable frame 2. The two ends of the chain 41 are detachably connected to the adjusting screw 42 and the clamp 43, respectively. When clamping, the chain 41 cooperates with the clamping groove 21 along the circumference of the corrugated roll to be tested to achieve fixation. In this embodiment, both the support frame 1 and the movable frame 2 are made of steel and are welded together. The movable frame 2 is rotatably connected to the support frame 1 via a rotating shaft structure. The drive assembly 3 preferably uses a motor 31 drive structure. The chain 41 of the fastening assembly 4 is a plate chain 41, and the adjusting screw 42 is an existing chain 41 adjusting screw 42 that is compatible with the plate chain 41. The clamp 43 is made of metal. To improve the clamping stability of the corrugated roller, there are three sets of fastening assemblies 4, which are respectively arranged at both ends and the middle of the movable frame 2 along its length.

[0021] During testing, the corrugated roll to be tested is placed in the clamping slot 21 of the movable frame 2. The clamp 43 of the fastening component 4 clamps one end of the chain 41, which spans across the corrugated roll. The tension of the chain 41 is adjusted by the adjusting screw 42 to lock and fix the corrugated roll. The drive component 3 drives the movable frame 2 to rotate and tilt according to the test requirements, so that each local area of ​​the corrugated roll can fully experience the water pressure, eliminating the test blind spots under the transmission fixed clamping method and improving the comprehensiveness and accuracy of the test results. The fastening assembly 4 adopts a combination structure of adjusting screw 42, chain 41, and clamp 43. The tension of chain 41 can be flexibly adjusted by adjusting screw 42, so that chain 41 fits tightly with clamping groove 21 along the circumference of corrugated roll. This design can adapt to corrugated rolls of different diameters and can achieve a firm lock by the flexible fit of chain 41 and the rigid adjustment of screw, effectively preventing displacement and shaking of corrugated roll during testing, and providing a stable and reliable clamping foundation for water pressure testing. At the same time, the movable frame 2 is rotatably connected to the support frame 1 and is driven by the drive assembly 3 fixed on the support frame 1 to rotate and tilt. During testing, there is no need to repeatedly disassemble and assemble corrugated roll, which greatly reduces clamping auxiliary time and manual operation intensity, avoids potential damage to corrugated roll caused by repeated disassembly and assembly, and improves testing efficiency while reducing the investment and use costs of enterprise testing equipment.

[0022] Please refer to the figure. Figure 1 , Figures 3 to 4 As shown, the clamp 43 includes a fixed block 431, a movable block 432, and bolts 433. The fixed block 431 is fixedly connected to one side of the movable frame 2, and the movable block 432 is connected to the fixed block 431 by bolts 433 to clamp one end of the chain 41 between the movable block 432 and the fixed block 431. In this embodiment, the fixed block 431 is fixed to the outside of the movable frame 2 by welding. The fixed block 431 has a limiting block 4313 protruding outward on the side near the movable block 432, and the movable block 432 has a limiting groove 4323 recessed inward on the side near the fixed block 431. The limiting block 4313 and the limiting groove 4323 cooperate to make the fixed block 431 and the movable block 432 precisely assembled. The bolts 433 fix the chain 41 so that the end of the chain 41 is stably clamped in the clamp 43.

[0023] Please see Figure 1 , Figures 3 to 4 As shown, the fixed block 431 has a plurality of first protrusions 4311 arranged in an array on the side near the movable block 432, and a first clearance groove 4312 is provided between the plurality of first protrusions 4311; the movable block 432 has a plurality of second protrusions 4321 arranged in an array on the side near the fixed block 431, and a second clearance groove 4322 is provided between the plurality of second protrusions 4321. The plurality of first protrusions 4311 and the plurality of second protrusions 4321 are arranged one-to-one and abut against each other to clamp and fix the chain 41 in the gaps between them. The first clearance groove 4312 and the second clearance groove 4322 are correspondingly arranged to form receiving holes for accommodating the chain 41. In this embodiment, the first protrusion 4311 and the fixing block 431 are an integral structure. The first protrusion 4311 is arranged in a 3×3 row and column on the fixing block 431. The three first protrusions 4311 in the same column are located on the same longitudinal protrusion, so that the depth of the first clearance groove 4312 in the longitudinal direction is greater than the depth in the transverse direction, so as to adapt to the shape and structure of the chain 41. The structure of the second protrusion 4321 and the second clearance groove 4322 is mirrored with the structure of the first protrusion 4311 and the first clearance groove 4312, so that the structure of the formed receiving hole is adapted to the structure of the chain 41.

[0024] When clamping chain 41, bolt 433 needs to be loosened to move movable block 432 away from fixed block 431, thereby separating the first protrusion 4311 from the second protrusion 4321. The end of chain 41 is then inserted between movable block 432 and fixed block 431. The position of chain 41 is adjusted so that the first protrusion 4311 and second protrusion 4321 are inserted into the corresponding internal gap of chain 41. Bolt 433 is then tightened so that the second protrusion 4321 of movable block 432 abuts against the first protrusion 4311 of fixed block 431, achieving stable locking of chain 41. The length of chain 41 inserted into clamp 43 can be adjusted according to the diameter of the corrugated roller to be tested, to adapt to the locking and fixing of corrugated rollers of different diameters.

[0025] Please see Figures 1 to 2 As shown, a reinforcing plate 22 is fixedly installed on the side of the movable frame 2 away from the clamp 43. The reinforcing plate 22 has a through hole, and the adjusting screw 42 is inserted into the through hole. In this embodiment, the reinforcing plate 22 is fixed to the side of the movable frame 2 away from the clamp 43 by welding. After the adjusting bolt 433 is inserted into the through hole, it is fixed by screwing a nut. The tension of the chain 41 can be finely adjusted by the cooperation of the nut and the adjusting screw 42, thereby improving the clamping stability of the corrugated roller. Correspondingly, the number of reinforcing plates 22 is matched with the number of fastening components 4, which is also three, and they are arranged one-to-one with the fastening components 4.

[0026] Please see Figure 1 As shown, the support frame 1 includes a workbench 11, and the drive assembly 3 is fixedly installed on the workbench 11. In this embodiment, the workbench 11 is formed by welding a metal plate to the top of the support frame 1. The workbench 11 is provided with a clearance space to avoid interfering with the rotation and tilting of the movable frame 2. The drive assembly 3 can be fixedly connected to the workbench 11 with screws, so that the height of the drive assembly 3 is adapted to the height of the movable frame 2.

[0027] Please see Figures 1 to 2 As shown, the movable frame 2 is fixedly equipped with a main shaft 23, and bearings (not shown in the drawings) are respectively sleeved at both ends of the main shaft 23. In this embodiment, the main shaft 23 extends laterally through the movable frame 2, and keyways are provided at the contact points between the main shaft 23 and the movable frame 2. By installing pins in the keyways, the main shaft 23 can drive the movable frame 2 to rotate synchronously, thereby causing the corrugated roller to tilt.

[0028] Please see Figures 1 to 2 As shown, the support frame 1 is provided with two bearing seats 12, which are located on both sides of the movable frame 2. The bearings at both ends of the main shaft 23 are respectively installed in the two bearing seats 12. In this embodiment, the main shaft 23 and the bearings are interference-fitted, and the bearings are deep groove ball bearings. The bearing seats 12 are fixed to the support frame 1 with screws.

[0029] Please see Figure 1 As shown, the drive assembly 3 includes a motor 31 and a reducer 32. The motor 31 drives the reducer 32, and the reducer 32 is connected to one end of the main shaft 23. In this embodiment, the motor 31 is preferably a YVF2 series variable frequency three-phase asynchronous motor 31, and the reducer 32 is preferably an RV series worm gear reducer 32. The reducer 32 needs to match the power of the motor 31. This combination is low-cost, simple to maintain, compact in structure, and has a self-locking function, making it suitable for test scenarios with medium loads and fixed tilt angles.

[0030] Please see Figure 2As shown, the clamping groove 21 has a rubber pad 24 embedded in its groove wall. In this embodiment, the clamping groove 21 is a "V" shaped groove, which can be used to clamp corrugated rolls of different diameters for testing, thus improving the compatibility of the testing fixture. The two sides of the clamping groove 21 are provided with receiving grooves for accommodating the rubber pad 24. The rubber pad 24 is preferably made of silicone. The rubber pad 24 separates the groove wall from the corrugated roll to protect the outer surface of the corrugated roll and prevent the groove wall from scratching the corrugated roll.

[0031] It is understood that those skilled in the art can make equivalent substitutions or changes based on the technical solution and inventive concept of this utility model, and all such substitutions or changes should fall within the protection scope of the appended claims of this utility model.

Claims

1. A testing fixture for hydraulic pressure testing of corrugated rolls, characterized in that, The device includes a support frame (1), a movable frame (2), a drive assembly (3), and a fastening assembly (4). The movable frame (2) is rotatably connected to the support frame (1). The drive assembly (3) is fixedly installed on the support frame (1) and is drivenly connected to the movable frame (2) to drive the movable frame (2) to rotate and tilt. The movable frame (2) is provided with a clamping slot (21) for clamping the corrugated roller to be tested. The fastening assembly (4) is provided on the movable frame (2) for clamping the corrugated roller to be tested. The fastening assembly (4) is locked and fixed in the clamping groove (21). The fastening assembly (4) includes a chain (41), an adjusting screw (42) and a clamp (43). The adjusting screw (42) is connected to one side of the movable frame (2), and the clamp (43) is connected to the other side of the movable frame (2). The two ends of the chain (41) are detachably connected to the adjusting screw (42) and the clamp (43) respectively. When clamping, the chain (41) is fixed by cooperating with the clamping groove (21) along the circumference of the corrugated roller to be tested.

2. The testing fixture for hydrostatic testing of corrugated rolls according to claim 1, characterized in that, The clamp (43) includes a fixed block (431), a movable block (432) and a bolt (433). The fixed block (431) is fixedly connected to one side of the movable frame (2), and the movable block (432) is connected to the fixed block (431) by the bolt (433) to clamp one end of the chain (41) between the movable block (432) and the fixed block (431).

3. The testing fixture for hydrostatic testing of corrugated rolls according to claim 2, characterized in that, The fixed block (431) has a plurality of first protrusions (4311) arranged in an array on the side near the movable block (432), and a first clearance groove (4312) is provided between the plurality of first protrusions (4311); the movable block (432) has a plurality of second protrusions (4321) arranged in an array on the side near the fixed block (431), and a second clearance groove (4322) is provided between the plurality of second protrusions (4321). The plurality of first protrusions (4311) and the plurality of second protrusions (4321) are arranged one-to-one and abut against each other to clamp and fix the chain (41) in the gap of the chain (41). The first clearance groove (4312) and the second clearance groove (4322) are correspondingly arranged to form a receiving hole for accommodating the chain (41).

4. The testing fixture for hydrostatic testing of corrugated rolls according to claim 1, characterized in that, A reinforcing plate (22) is fixedly installed on the side of the movable frame (2) away from the clamp (43). The reinforcing plate (22) has a through hole, and the adjusting screw (42) is inserted into the through hole.

5. The testing fixture for hydrostatic testing of corrugated rolls according to claim 1, characterized in that, The support frame (1) includes a worktable (11) and a drive assembly (3) is fixedly installed on the worktable (11).

6. The testing fixture for hydrostatic testing of corrugated rolls according to claim 1, characterized in that, The movable frame (2) is fixedly equipped with a main shaft (23), and bearings are respectively fitted at both ends of the main shaft (23).

7. The testing fixture for hydrostatic testing of corrugated rolls according to claim 6, characterized in that, The support frame (1) is provided with two bearing seats (12), which are located on both sides of the movable frame (2). The bearings at both ends of the main shaft (23) are installed in the two bearing seats (12).

8. The testing fixture for hydrostatic testing of corrugated rolls according to claim 1, characterized in that, The drive assembly (3) includes a motor (31) and a reducer (32). The motor (31) drives the reducer (32), and the reducer (32) drives one end of the main shaft (23).

9. The testing fixture for hydrostatic testing of corrugated rolls according to claim 1, characterized in that, The groove wall of the clamping groove (21) is inlaid with a rubber pad (24).

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