Tension testing device for stainless steel corrugated hose for fuel gas

Abstract

The utility model relates to the field of stainless steel corrugated hose testing, in particular to a stainless steel corrugated hose tension testing device for fuel gas, which comprises a base and a clamping mechanism, the clamping mechanism is composed of an empty groove, first fixing blocks, a sliding block, a second fixing block, a fixing rod, a gear, a fixing plate, an electric cylinder, a right moving block, a left moving block, a right rack, a left rack and an anti-skid gripper, the first fixing blocks are connected to the left side and the right side of the front position of the top of the base correspondingly, the empty groove is formed in the rear position of the top of the base, and the sliding block is arranged on the upper side of the interior of the empty groove; the left and right sides of the top of the sliding block are connected with second fixing blocks correspondingly. The clamping mechanism is arranged, a right rack drives a gear to rotate while a right moving block moves leftwards, the gear drives a left rack and a left moving block to move rightwards to achieve clamping, and the problem that according to a clamp of a common tension testing device, when hoses of different specifications are tested, the clamp needs to be replaced or equipment needs to be adjusted, and operation complexity is increased is solved.

Description

Technical Field

[0001] The utility model relates to the field of stainless steel corrugated hose testing, in particular to a stainless steel corrugated hose tension testing device for gas. Background Art

[0002] The common tensile testing device for stainless steel corrugated hoses for gas firmly fixes both ends of the stainless steel corrugated hose to the fixture of the testing machine, and then gradually increases the tensile force through the loading system until the hose reaches the predetermined tensile strength or is damaged. During this process, the measurement system continuously records the relationship between the deformation of the hose and the tensile force it is subjected to, thereby evaluating the tensile performance of the hose.

[0003] The clamps of common gas stainless steel corrugated hose tensile test devices cannot be flexibly adjusted to accommodate stainless steel corrugated hoses of different sizes. This limits the versatility and applicability of the test device, resulting in the need to replace the clamps or adjust the equipment when testing hoses of different specifications, increasing the complexity and time-consuming nature of the operation. In addition, improper clamping may lead to inaccurate test results.

[0004] Therefore, for the above-mentioned common stainless steel corrugated hose tensile testing device for gas, the fixture needs to be replaced or the equipment needs to be adjusted when testing hoses of different specifications, which increases the complexity and time-consuming nature of the operation. A stainless steel corrugated hose tensile testing device for gas can be designed, which has a clamping mechanism that can be freely adjusted according to the size of the clamped object to adapt to different corrugated hoses. Utility Model Content

[0005] In order to overcome the problem that the fixture of the common stainless steel corrugated hose tensile test device for gas cannot be flexibly adjusted to adapt to stainless steel corrugated hoses of different sizes, the fixture needs to be replaced or the equipment needs to be adjusted when testing hoses of different specifications, which increases the complexity and time-consuming nature of the operation.

[0006] The technical solution of the utility model is: a tensile testing device for a stainless steel corrugated hose for gas, comprising a base and a clamping mechanism, wherein the clamping mechanism consists of an empty slot, a fixed block 1, a slider, a fixed block 2, a fixed rod, a gear, a fixed plate, an electric cylinder, a right movable block, a left movable block, a right rack, a left rack and an anti-slip gripper, wherein the left and right sides of the top of the base are respectively connected to the fixed block 1 at the front position, an empty slot is opened at the rear position of the top of the base, a slider is provided on the upper side of the inner part of the empty slot, the left and right sides of the top of the slider are respectively connected to the fixed block 2, a fixed rod is connected between the two fixed blocks 1, the same fixed rod is connected between the two fixed blocks 2, a gear is connected at the middle position of the bottom of the fixed rod, the outer surface of the fixed rod is slidably connected to the right movable block at the right position, the outer surface of the fixed rod is slidably connected to the left movable block at the left position, the bottom rear position of the right movable block is connected to the right rack, and the bottom front position of the left movable block is connected to the left rack, and the left rack and the right rack are meshed with the gear.

[0007] Preferably, by setting up a clamping mechanism, the electric cylinder drives the right moving block to move to the left, and at the same time the right rack drives the gear to rotate, and the gear drives the left rack and the left moving block to move to the right to achieve clamping, which solves the problem that the clamps of common tensile testing devices cannot be flexibly adjusted to adapt to stainless steel corrugated hoses of different sizes. When testing hoses of different specifications, the clamps need to be replaced or the equipment needs to be adjusted, which increases the complexity and time-consuming nature of the operation.

[0008] Preferably, the ends of the fixed block 1 and the fixed block 2 away from the left movable block are connected to a fixed plate, and the top of the fixed plate is connected to an electric cylinder.

[0009] Preferably, the left end of the electric cylinder is connected to the right moving block, and the left end of the right moving block and the right end of the left moving block are respectively connected to anti-slip grippers.

[0010] Preferably, the upper ends of the two fixing rods are respectively provided with hose interfaces, and a corrugated hose body is connected between the two hose interfaces.

[0011] Preferably, the hose interface is movably connected to the anti-slip gripper, a motor is connected to the middle position of the rear end of the base, the output end of the motor extends to the inside of the empty slot and is connected to a threaded rod, which is threadedly connected to the slider.

[0012] Preferably, the threaded rod is rotatably connected to an end of the empty slot away from the motor, and limiting rods are respectively connected to the left and right sides of an end of the empty slot close to the motor.

[0013] Preferably, the limiting rod is slidably connected to the slider, the front end of the limiting rod is connected to the end of the empty slot away from the motor, and the electric cylinder and the motor are electrically connected to an external power supply.

[0014] Beneficial effects of the utility model:

[0015] 1. By setting up a clamping mechanism, the electric cylinder drives the right moving block to move to the left, and at the same time the right rack drives the gear to rotate, and the gear drives the left rack and the left moving block to move to the right to achieve clamping. This solves the problem that the fixture of the common tensile testing device cannot be flexibly adjusted to adapt to stainless steel corrugated hoses of different sizes. When testing hoses of different specifications, the fixture needs to be replaced or the equipment needs to be adjusted, which increases the complexity and time-consumingness of the operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 Shown is a schematic diagram of the three-dimensional structure of a tensile testing device for a stainless steel corrugated hose for gas according to the present invention;

[0017] Figure 2 Shown is a schematic diagram of a three-dimensional front section structure of a tensile testing device for a stainless steel corrugated hose for gas according to the present invention;

[0018] Figure 3 Shown is a schematic diagram of the three-dimensional upper cross-sectional structure of a tensile testing device for a stainless steel corrugated hose for gas according to the present invention;

[0019] Figure 4 What is shown is a schematic diagram of the three-dimensional rear view and front cross-section structure of a stainless steel corrugated hose tension testing device for gas according to the present invention.

[0020] Explanation of the accompanying reference numerals: 1. Base; 21. Empty slot; 22. Fixed block 1; 23. Slider; 24. Fixed block 2; 25. Fixed rod; 26. Gear; 27. Fixed plate; 28. Electric cylinder; 29. ​​Right moving block; 210. Left moving block; 211. Right rack; 212. Left rack; 213. Anti-slip gripper; 31. Hose interface; 32. Corrugated hose body; 33. Threaded rod; 34. Limit rod; 35. Motor. DETAILED DESCRIPTION

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] See also Figure 1-Figure 4The utility model provides an embodiment: a tensile testing device for a stainless steel corrugated hose for gas includes a base 1 and a clamping mechanism, which is composed of an empty slot 21, a fixed block 1 22, a slider 23, a fixed block 24, a fixed rod 25, a gear 26, a fixed plate 27, an electric cylinder 28, a right moving block 29, a left moving block 210, a right rack 211, a left rack 212 and an anti-slip gripper 213. The left and right sides of the top front position of the base 1 are respectively connected to the fixed block 1 22, an empty slot 21 is opened at the top rear position of the base 1, a slider 23 is provided on the upper side of the empty slot 21, and the left and right sides of the top of the slider 23 are respectively connected to the fixed block 24, a fixed rod 25 is connected between the two fixed blocks 1 22, the same fixed rod 25 is connected between the two fixed blocks 24, and the bottom middle position of the fixed rod 25 is connected There is a gear 26, and the outer surface of the fixed rod 25 is slidably connected to the right position with a right moving block 29, and the outer surface of the fixed rod 25 is slidably connected to the left moving block 210. The bottom rear position of the right moving block 29 is connected to a right rack 211, and the bottom front position of the left moving block 210 is connected to a left rack 212. The left rack 212 and the right rack 211 are meshed with the gear 26. By setting a clamping mechanism, the electric cylinder 28 drives the right moving block 29 to move to the left, and at the same time the right rack 211 drives the gear 26 to rotate, and the gear 26 drives the left rack 212 and the left moving block 210 to move to the right to achieve clamping, which solves the problem that the clamp of the common tensile testing device cannot be flexibly adjusted to adapt to stainless steel corrugated hoses of different sizes. When testing hoses of different specifications, it is necessary to replace the clamp or adjust the equipment, which increases the complexity and time-consuming problem of operation.

[0023] See also Figure 1-Figure 4 In this embodiment, the ends of the fixed block 1 22 and the fixed block 2 24 away from the left movable block 210 are connected to a fixed plate 27, the top of the fixed plate 27 is connected to an electric cylinder 28, the left end of the electric cylinder 28 is connected to the right movable block 29, the left end of the right movable block 29 and the right end of the left movable block 210 are respectively connected to an anti-slip gripper 213, the upper ends of the two fixed rods 25 are respectively provided with a hose interface 31, a corrugated hose body 32 is connected between the two hose interfaces 31, the hose interface 31 is movably connected to the anti-slip gripper 213, the electric cylinder 28 drives the right movable block 29 to move, so that after the left movable block 210 and the right movable block 29 are clamped, the anti-slip gripper 213 increases the gripping force on the hose interface 31.

[0024] See also Figure 1-Figure 4In this embodiment, a motor 35 is connected to the middle position of the rear end of the base 1. The output end of the motor 35 extends to the inside of the empty slot 21 and is connected to a threaded rod 33. The threaded rod 33 is threadedly connected to the slider 23. The threaded rod 33 is rotatably connected to the end of the empty slot 21 away from the motor 35. The left and right sides of the end of the empty slot 21 close to the motor 35 are respectively connected to the limit rods 34. The limit rods 34 are slidably connected to the slider 23. The front end of the limit rod 34 is connected to the end of the empty slot 21 away from the motor 35. The electric cylinder 28 and the motor 35 are electrically connected to an external power supply. The motor 35 drives the threaded rod 33 to rotate, so that the slider 23 moves back and forth on the thread, and the position of the slider 23 is limited by the limit rod 34.

[0025] During operation, the hose interface 31 is placed between the left moving block 210 and the right moving block 29. After being placed in the appropriate position, the electric cylinder 28 is started to drive the right moving block 29 and the right rack 211 to move to the left, and the right rack 211 drives the gear 26 to rotate. The gear 26 drives the left rack 212 and the left moving block 210 to move to the right, clamping the hose interface 31. At the same time, the anti-slip gripper 213 increases the gripping force on the hose interface 31. Then the motor 35 is started to drive the threaded rod 33 to rotate, so that the slider 23 moves back and forth on the threaded rod 33. At the same time, the limit rod 34 limits the position of the slider 23. When the slider 23 slides backward, 4 pairs of corrugated hose bodies 32 are exerted with pulling force.

[0026] Through the above steps, a clamping mechanism is set up, the electric cylinder 28 drives the right moving block 29 to move to the left, and at the same time the right rack 211 drives the gear 26 to rotate, and the gear 26 drives the left rack 212 and the left moving block 210 to move to the right to achieve clamping, so as to solve the problem that the clamp of the tensile testing device cannot be flexibly adjusted to adapt to stainless steel corrugated hoses of different sizes. When testing hoses of different specifications, the clamp needs to be replaced or the equipment needs to be adjusted, which increases the complexity and time-consuming nature of the operation.

Claims

1. A tensile testing device for a stainless steel corrugated hose for gas, comprising a base (1); characterized in that: The base (1) further comprises a clamping mechanism, the clamping mechanism comprising an empty slot (21), a fixed block 1 (22), a slider (23), a fixed block 2 (24), a fixed rod (25), a gear (26), a fixed plate (27), an electric cylinder (28), a right moving block (29), a left moving block (210), a right rack (211), a left rack (212) and an anti-slip gripper (213), the left and right sides of the top front position of the base (1) are respectively connected to the fixed block 1 (22), the top rear position of the base (1) is provided with an empty slot (21), the inner upper side of the empty slot (21) is provided with a slider (23), the top left and right sides of the slider (23) are respectively connected to the fixed block 2 (24), a fixed rod (25) is connected between the two fixed blocks (22), the same fixed rod (25) is connected between the two fixed blocks (24), a gear (26) is connected to the middle position of the bottom of the fixed rod (25), a right movable block (29) is slidably connected to the right position of the outer surface of the fixed rod (25), a left movable block (210) is slidably connected to the left position of the outer surface of the fixed rod (25), a right rack (211) is connected to the rear position of the bottom of the right movable block (29), a left rack (212) is connected to the front position of the bottom of the left movable block (210), and the left rack (212) and the right rack (211) are meshed with the gear (26).

2. A tensile testing device for a stainless steel corrugated hose for gas according to claim 1, characterized in that: One end of the fixed block 1 (22) and the fixed block 2 (24) away from the left movable block (210) is connected to a fixed plate (27), and the top of the fixed plate (27) is connected to an electric cylinder (28).

3. A tensile testing device for a stainless steel corrugated hose for gas according to claim 2, characterized in that: The left end of the electric cylinder (28) is connected to the right moving block (29), and the left end of the right moving block (29) and the right end of the left moving block (210) are respectively connected to anti-slip grippers (213).

4. A tensile testing device for a stainless steel corrugated hose for gas according to claim 3, characterized in that: The upper ends of the two fixing rods (25) are respectively provided with hose interfaces (31), and a corrugated hose body (32) is connected between the two hose interfaces (31).

5. A tensile testing device for a stainless steel corrugated hose for gas according to claim 4, characterized in that: The hose interface (31) is movably connected to the anti-slip gripper (213), and a motor (35) is connected to the middle position of the rear end of the base (1). The output end of the motor (35) extends to the inside of the empty slot (21) and is connected to a threaded rod (33), which is threadedly connected to the slider (23).

6. A tensile testing device for a stainless steel corrugated hose for gas according to claim 5, characterized in that: The threaded rod (33) is rotatably connected to an end of the interior of the empty slot (21) away from the motor (35), and the left and right sides of an end of the interior of the empty slot (21) close to the motor (35) are respectively connected to limiting rods (34).

7. A tensile testing device for a stainless steel corrugated hose for gas according to claim 6, characterized in that: The limiting rod (34) is slidably connected to the slider (23), the front end of the limiting rod (34) is connected to an end of the empty slot (21) away from the motor (35), and the electric cylinder (28) and the motor (35) are electrically connected to an external power supply.

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