Clamp-type connector flexure test device

Abstract

Disclosed in the present invention is a clamp-type connector flexure test device. The device comprises a power device, a flexure mechanism, a hydraulic system and a counting system. The prsent invention is based on a parallel link mechanism and can perform flexure tests on multiple groups of test pieces synchronously, enabling a stable system and convenient expansion. By adjusting the center distance between the flexure mechanism and a fixing mechanism, flexure tests with preset angles can be performed. A magnetic attraction counter is used to count the number of flexure cycles. The present invention is adapted to the hydraulic system, making pressurization simple and convenient; the test device can be placed in a temperature environment box to perform flexure tests under composite boundary conditions.

Description

A flexure test device for clamp-type joints Technical Field

[0001] The present invention relates to the technical field of fluid testing, and more particularly to a testing device for the deflection of a clamp-type joint. Background Art

[0002] Clamp-type joints are currently widely used to connect low-pressure oil pipes due to their ease of installation and flexible connection. Typically, clamp-type joints are subject to various directional deflections caused by environmental conditions such as vibration and shock, and are subject to inherent pressure or temperature variations, necessitating flexural testing in complex boundary environments.

[0003] The flex test for clamp-type joints assesses their ability to withstand flexure. Often, due to deviations in the installation and welding process of piping components, the clamp-type joint may tilt slightly, so the flex test is conducted at a certain angle. Clamp-type joints are often used for connecting engine oil lines. Due to the large temperature fluctuations near the engine, flex tests are typically conducted at different temperatures. Furthermore, since the core function of the clamp-type joint is to transmit oil pressure, the entire test system is under pressure during the flex test.

[0004] Currently, flexure tests for clamp-type joints often use self-aligning bearings to implement the offset, which is costly and also limits scalability. To meet boundary constraints and conduct multiple sets of flexure tests on clamp-type joints, a low-cost, highly efficient, stable, and reliable flexure testing device is required.

[0005] Summary of the Invention

[0006] In view of this, the purpose of the present invention is to provide a clamp-type joint flexure test device, which can test multiple groups of test pieces in parallel, change the eccentricity and realize the flexure test function. The test device is easy and convenient to charge, and the test device can be placed in a temperature environment box, which can realize the clamp-type joint flexure test under composite boundary conditions.

[0007] To this end, the present invention provides a clamp-type joint flexure test device, wherein a motor is fixed to a motor base by screws, a motor shaft is connected to a driving shaft by a shaft connector, a seat bearing group is composed of an active seat bearing and at least one driven seat bearing, the active shaft passes through the active seat bearing, one end of an active rod is connected to the active shaft, and the other end of the active rod is connected to a horizontal connecting rod via an active connecting rod connecting shaft; one end of each driven rod is movably connected to an adjacent driven seat bearing via a support connecting shaft, and the other end of each driven rod is connected to the horizontal connecting rod via a driven connecting rod connecting shaft;

[0008] Multiple pipeline fixing sleeves correspond to the active rod and the multiple driven rods respectively, each pipeline fixing sleeve is fixed to the horizontal connecting rod by a screw, one end of each flexible tube is fixed to the first fixing sleeve, each clamp-type joint connects each flexible tube and each fixed tube together, and both ends of each fixed tube pass through each front pipeline fixing base and each rear pipeline fixing base respectively;

[0009] The magnetic counter is fixed by a counter bracket, and the magnet is adsorbed on the horizontal connecting rod;

[0010] The motor base, seat bearing, pipe fixing seat and counter bracket are all fixed to the base plate by screws;

[0011] The hydraulic source serves as a pressure charging device to charge the hydraulic pressure into the flexible pipe, the fixed pipe and the clamp type joint.

[0012] The active rod and multiple driven rods are connected by a horizontal rod. Since the active rod and multiple driven rods have the same size, multiple groups of clamp-type joint flexure tests can be carried out synchronously.

[0013] The length of the active rod and the distance between the active rod and the clamp-type joint jointly determine the deflection angle. By changing the size of the active rod, deflection tests at different angles can be achieved.

[0014] The magnetic attraction counter and the magnet provide a bending number count. When the horizontal connecting rod drives the magnet to rotate one circle, a magnetic attraction pulse is generated, which is counted once.

[0015] It can be seen from the technical solution provided by the present invention that, compared with the prior art, a clamp-type joint flexure test device can effectively implement flexure tests, is easy to adjust, easy to use, is conducive to widespread production, and has good application significance. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] FIG1 is a schematic diagram of a clamp-type joint flexure test device provided by the present invention;

[0017] Figure 2 is a schematic diagram of simultaneous flexural testing of multiple sets of clamp joints. DETAILED DESCRIPTION

[0018] In order to enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and implementation methods.

[0019] The present invention provides a clamp-type joint flexure test device, which is mainly used for performing flexure test on clamp-type joints. The system not only effectively improves the efficiency of the flexure test, but also is easy to adjust and easy to use.

[0020] Referring to Figures 1 and 2, the motor 2 is fixed to the motor base 1 by screws, and the rotating shaft of the motor 2 is connected to the driving shaft 4 by a shaft connector 3. The seat bearing group consists of an active seat bearing and at least one driven seat bearing. The driving shaft 4 passes through the active seat bearing 5. One end of the active rod 6 is connected to the active shaft 4, and the other end of the active rod is connected to the horizontal connecting rod 10 via the active connecting rod connecting shaft 8; one end of each driven rod 20 is movably connected to the adjacent driven seat bearing 21 via the support connecting shaft 7, and the other end of each driven rod is connected to the horizontal connecting rod 10 via the driven connecting rod connecting shaft 22;

[0021] Multiple pipeline fixing sleeves correspond to the active rod and multiple driven rods respectively. Each pipeline fixing sleeve 9 is fixed to the horizontal connecting rod 10 by screws. One end of each flexible tube 11 is fixed to the first fixing sleeve 9. Each clamp joint 12 connects each flexible tube 11 and each fixed tube 13 together. The two ends of each fixed tube 13 pass through each front pipeline fixing base 14 and each rear pipeline fixing base 23 respectively.

[0022] The magnetic counter 17 is fixed by a counter bracket 18, and the magnet 16 is adsorbed on the horizontal connecting rod 10;

[0023] The motor base 1, seat bearing 5, pipe fixing seat 14 and counter bracket 18 are all fixed to the base plate 15 by screws; the hydraulic source 19 is used as a pressure charging device to charge the hydraulic pressure into the flexible tube 11, fixed tube 13 and clamp joint 12.

[0024] The present invention provides a clamp-type joint flexure test device, in which the motor adopts a variable frequency motor to form a power source device. The motor 2 connects the rotating shaft of the motor 2 and the driving shaft 4 through the shaft connector 3, which serves as the power output to drive the active rod 6 to rotate.

[0025] In this invention, the linkage mechanism is the actuator for conducting the flexure test. By arranging an active rod and multiple sets of driven rods, flexure tests can be performed on multiple test pieces. To ensure uniform flexure across all test pieces, the active rods 6 must be of the same size and connected to the horizontal link 10 via a connecting rod shaft 8.

[0026] In the present invention, the fixed pipe 13 is fixed by the pipeline fixing seat 14. The center of the pipeline fixing seat 14 needs to be concentric with the seat bearing 5. Then, on the basis of this concentricity, the eccentric distance requirement is achieved through a gasket according to the required eccentric distance.

[0027] In the present invention, in order to count the number of deflections, a magnetic counter 18 is used to count the number of deflections. When the magnet 16 on the horizontal connecting rod 10 approaches the magnetic counter 18 at a close distance, a count is made. This counting method is recommended and can achieve position adjustment.

[0028] In the present invention, the flexible tube 11 , the clamp joint 12 and the fixed tube 13 of the flexure test are pressurized by the hydraulic source 19 to a required pressure according to the test requirements.

[0029] It should be noted that the present invention is a method for implementing a flexural test of a clamp-type joint through a connecting rod mechanism, and by arranging multiple groups of connecting rod mechanisms of the same size, flexural tests of multiple groups of clamp-type joints can be implemented. Because the distance between the clamp-type joint and the horizontal connecting rod is fixed, the flexural angle can be adjusted by changing the length of the active rod. In order to carry out some special flexural tests with eccentricity, it is necessary to adjust the eccentric distance by adjusting the distance between the axis of the clamp-type joint and the center axis of the seat bearing. In order to record the number of flexural times, it is counted by a magnetic counter. For flexural tests that need to be carried out in high and low temperature environments, the test device can be arranged in an environmental chamber to meet the needs of composite boundary environment tests.

[0030] In order to understand the present invention more clearly, the working mode of the present invention is described below:

[0031] Step 1: Connect the flexible tube, fixed tube and clamp joint together and arrange them in the temperature box.

[0032] Step 2: According to the requirements of the flexure test conditions, determine the eccentric distance, adjust the height of the gasket under the pipe fixing seat, and select the size of the active rod.

[0033] Step 3: Connect the selected active rod to the connecting rod mechanism.

[0034] Step 4: Connect the flexible tube through the pipe fixing sleeve, and fix the pipe parts and clamp joints to be tested on the pipe fixing seat.

[0035] Step 5: Arrange the counting system and place the magnetic counter and magnet close to each other, ensuring they are within the range of the magnetic attraction.

[0036] Step 6: Pressurize the pipes and clamps to ensure the system pressure is stable.

[0037] Step 7: Start the motor system and conduct a preliminary test of the flexural test; after the preliminary test is successful, start the temperature chamber system and officially carry out the test.

[0038] In summary, compared with the prior art, the clamp-type joint flexure test device provided by the present invention is simple and efficient, and can provide effective and reliable test quality assurance and data support for the flexure test of the clamp-type joint.

[0039] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A clamp type joint flexure test device, characterized in that: The motor (2) is fixed to the motor base (1) by screws, and the rotating shaft of the motor (2) is connected to the driving shaft (4) by a shaft connector (3). The seat bearing group is composed of an active seat bearing and at least one driven seat bearing. The driving shaft (4) passes through the active seat bearing (5). One end of the active rod (6) is connected to the active shaft (4), and the other end of the active rod is connected to the horizontal connecting rod (10) through the active connecting rod connecting shaft (8); one end of each driven rod (20) is movably connected to the adjacent driven seat bearing (21) through a support connecting shaft (7), and the other end of each driven rod is connected to the horizontal connecting rod (10) through a driven connecting rod connecting shaft (22); The plurality of pipeline fixing sleeves respectively correspond to the active rod and the plurality of driven rods, each pipeline fixing sleeve (9) is fixed to the horizontal connecting rod (10) by means of screws, one end of each flexible tube (11) is fixed to the first fixing sleeve (9), each clamp-type joint (12) connects each flexible tube (11) and each fixing tube (13) together, and both ends of each fixing tube (13) respectively pass through each front pipeline fixing base (14) and each rear pipeline fixing base (23); The magnetic counter (17) is fixed by a counter bracket (18), the counter bracket (18) is adjacent to the horizontal connecting rod, and the magnet (16) is adsorbed on the horizontal connecting rod (10); the motor base (1), the seat bearing (5), the pipeline fixing seat (14) and the counter bracket (18) are all fixed on the bottom plate (15) by screws, and the hydraulic source (19) is connected to the fixed pipe (13), and the hydraulic pressure is filled in the flexible pipe (11), the fixed pipe (13) and the clamp type joint (12).

2. The clamp type joint flexure test device according to claim 1, characterized in that: The motor adopts a variable frequency motor to form a power source device.

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