CN-122016196-A - Sealing reliability detection device under vibration load of high-pressure oil pipe

Abstract

The invention relates to the technical field of high-pressure oil pipe detection devices, and discloses a device for detecting sealing reliability under vibration load of a high-pressure oil pipe, which comprises a frame platform with an avoidance port arranged in the middle of the upper end, the left and right sides of frame platform upper end are provided with the support frame respectively, and frame platform upper end installs a plurality of base that is rectangle evenly distributed, and the support board is installed to frame platform in dodging mouthful downside, and the support board upper end bilateral symmetry installs the grudging post. The device for detecting the sealing reliability of the high-pressure oil pipe under the vibration load can effectively solve the problems that in the prior art, the high-pressure oil pipe sealing detection device generally does not have a low-frequency disturbance simulation function, so that the deviation between a detection environment and actual working conditions is large, the reference value of a detection result is limited, the clamping limit and sealing butt joint work of the high-pressure oil pipe is poor, an effective position stabilizing structure is lacking, the placement position deviation is caused due to uneven gravity distribution at two ends of the high-pressure oil pipe, and the clamping accuracy and the sealing butt joint reliability are further affected.

Inventors

• LIU FENG
• XU HAIPING

Assignees

• 重庆快联汽车零部件有限公司

Dates

Publication Date

20260512

Application Date

20260226

Claims (7)

1. 1. The utility model provides a sealing reliability detection device under high pressure oil pipe vibration load which characterized in that includes: the middle part of the upper end is provided with a frame platform (1) with an avoidance port, the left side and the right side of the upper end of the frame platform (1) are respectively provided with a support frame (2), the support frames (2) are 匚 -shaped structures, the upper end of the frame platform (1) is provided with a plurality of bases (3) which are uniformly distributed in a rectangular shape, the lower side of the avoidance port of the frame platform (1) is provided with a bearing plate (4), the upper end of the bearing plate (4) is provided with a stand (5) in bilateral symmetry, the bearing plate (4) and the left stand (5) and the right stand (5) are jointly provided with a vibration simulation part (6), each base (3) is provided with a sealing detection part (7) for carrying out sealing test on a high-pressure oil pipe, and the support frames (2) on the left side and the right side are respectively provided with a placement part (8) for assisting in placing the high-pressure oil pipe; The vibration simulation part (6) comprises a vibration exciter (61) arranged at the upper end of the supporting plate (4), a mounting plate (62) is jointly arranged on the vibration exciter (61) and the left and right stand frames (5), the mounting plate (62) consists of a 匚 -shaped sleeve plate and a vibration guide table with an accommodating cavity formed in a bilateral symmetry manner at the upper end, the upper end of the mounting plate (62) is connected with a bearing platform (63) through a supporting spring, the bearing platform (63) is of a T-shaped structure, guide sliding rods (64) are symmetrically arranged at the lower end of the bearing platform (63), the guide sliding rods (64) are slidably connected to the inner walls of the corresponding accommodating cavities, and an oil pipe fixing group (65) is arranged on the bearing platform (63); Wherein, seal detection portion (7) are including being located slide rail (71) of symmetry installation around base (3) upper end, and common slidable mounting has installation slide (72) on two slide rails (71) around, and the one end that load-bearing platform (63) was kept away from to base (3) is still rotated and is run through and install adjusting screw (73), and adjusting screw (73) threaded connection is on installation slide (72), and hand wheel (74) are installed to the one end that load-bearing platform (63) was kept away from to adjusting screw (73), are provided with airtight detection group (75) on installation slide (72).
2. 2. The device for detecting the sealing reliability under the vibration load of the high-pressure oil pipe according to claim 1, wherein the middle part of the upper end of the vertical section of the bearing platform (63) is provided with a limiting chute (631), the upper end of the vertical section of the bearing platform (63) is provided with a contraposition groove (632) in bilateral symmetry, the inner wall of the contraposition groove (632) is provided with a plurality of clamping grooves (633) which are uniformly distributed in circumference, and a plurality of spring shock absorbers which are uniformly distributed in rectangle are also commonly installed between the bearing platform (63) and the mounting plate (62).
3. 3. The device for detecting sealing reliability under vibration load of high-pressure oil pipe according to claim 1, wherein the placing part (8) comprises an installation transverse plate (81) which is arranged on the inner wall of the supporting frame (2) in a sliding manner, a supporting sliding rod (82) which penetrates through the supporting frame (2) in a sliding manner is arranged at the upper end of the installation transverse plate (81), a compression spring is sleeved on the outer wall of the supporting sliding rod (82) between the supporting frame (2) and the installation transverse plate (81), placing holes are symmetrically formed in the front and back directions of one end of the installation transverse plate (81) towards the bearing platform (63), the placing holes are U-shaped, positioning grooves are symmetrically formed in the front and back directions of the upper end of the installation transverse plate (81), the positioning grooves are communicated with the placing holes, clamping sliding seats (83) are symmetrically arranged on the inner wall of the positioning grooves in the front and back directions through the compression spring in a sliding manner, and the upper ends of the clamping sliding seats (83) are of a wedge-shaped structure, and electromagnets (84) are respectively embedded at the front and back ends of the installation transverse plate (81).
4. 4. The device for detecting sealing reliability under vibration load of high-pressure oil pipe according to claim 1, wherein the oil pipe fixing group (65) comprises a first positioning tool (651) arranged at the upper end of a horizontal bottom plate of the bearing platform (63), the first positioning tool (651) is provided with a plurality of positioning tools, the first positioning tools (651) are uniformly distributed in a rectangular shape, an installation sliding plate (652) is slidably arranged on the inner wall of the limiting sliding groove (631) through a compression spring, a cover plate (653) is arranged at the upper end of the installation sliding plate (652), the cover plate (653) is integrally formed by a rectangular plate and two extending plates with circular sliding holes in advance on the left and right, the lower end of the cover plate (653) is provided with a second positioning tool (658) corresponding to the first positioning tools (651) through connecting rods, and the opposite ends of the first positioning tool (651) and the second positioning tool (658) are wedge structures with semicircular grooves.
5. 5. The device for detecting sealing reliability under vibration load of high-pressure oil pipe according to claim 4, wherein the oil pipe fixing group (65) further comprises an alignment sliding rod (654) which is arranged in the alignment groove (632) and the circular sliding hole and is jointly movably arranged, the alignment sliding rod (654) is composed of a round rod and a cylinder, the lower end of the cylinder on the alignment sliding rod (654) is rotationally connected to the cover plate (653), the lower side of the outer wall of the alignment sliding rod (654) is provided with mounting grooves (655) corresponding to the plurality of clamping grooves (633), the inner wall of the mounting grooves (655) is slidably provided with clamping sliding blocks (656) through compression springs, and the clamping ends of the clamping sliding blocks (656) are subjected to round corner treatment.
6. 6. The device for detecting sealing reliability under vibration load of high-pressure oil pipe according to claim 5, wherein the oil pipe fixing group (65) further comprises positioning magnets (657) which are embedded between opposite ends of the cylinders on the cover plate (653) and the alignment sliding rod (654), the positioning magnets (657) are provided with a plurality of positioning magnets (657) which are uniformly distributed in circumference.
7. 7. The device for detecting sealing reliability under vibration load of high-pressure oil pipe according to claim 1, wherein the airtight detection group (75) comprises an air pump (751) which is arranged at one end of the installation sliding seat (72) far away from the bearing platform (63), an air passage adapter is arranged at one end of the installation sliding seat (72) facing the bearing platform (63) through an opening, the air pump (751) is communicated with a flexible hose (752) through the air passage adapter, a sealing joint (753) is communicated at one end of the flexible hose (752) far away from the air pump (751), and a clamping seat (754) for placing and fixing the flexible hose (752) is arranged at the upper end of the installation sliding seat (72).

Description

Sealing reliability detection device under vibration load of high-pressure oil pipe Technical Field The invention relates to the technical field of high-pressure oil pipe detection devices, in particular to a device for detecting sealing reliability of a high-pressure oil pipe under vibration load. Background The high-pressure oil pipe of the automobile is a core safety component in an automobile power transmission and control execution system and is mainly used for conveying high-pressure media (fuel oil, hydraulic oil, brake fluid and the like), and the working pressure is far higher than that of a common low-pressure oil pipe. The high-pressure oil pipe is used as a key conveying component of high-pressure media such as fuel oil, hydraulic oil and the like, and the sealing reliability of the high-pressure oil pipe directly determines the operation stability, the safety and the service life of equipment. In the actual working process, the high-pressure oil pipe is in the complex low-frequency disturbance environments such as slight shaking, mechanical running impact, medium pulsation and the like when the engine runs for a long time, the sealing surface is easy to generate micro gaps due to low-frequency shaking fatigue, the sealing element is easy to age, deform or fall off, and further high-pressure medium leakage is caused, so that not only is the resource waste caused, but also fire, equipment failure and even serious safety accidents can be caused. In this way, the high-pressure oil pipe sealing reliability detection device is designed, the existing high-pressure oil pipe sealing detection device generally does not have a low-frequency disturbance simulation function, the detection process is usually in a static environment, the high-pressure oil pipe is usually accompanied with slight shaking or low-frequency disturbance of equipment when in actual application, the shaking or low-frequency disturbance can aggravate abrasion and ageing of sealing elements at joints of the oil pipe, even the sealing structure loosens, leakage is caused, firstly, static detection can only reflect the sealing state of the high-pressure oil pipe under the static working condition, the influence of the slight shaking and low-frequency disturbance in actual operation on the sealing performance cannot be simulated, the deviation between the detection environment and the actual working condition is larger, the reference value of a detection result is limited, secondly, the clamping limiting and sealing butting work of the high-pressure oil pipe is mostly realized by means of manually placing the high-pressure oil pipe and a cylinder driving limiting structure, the high-pressure oil pipe is mainly in a special structure with a special abnormal bending shape, the special structure is lacked, the effective position stabilizing structure is also lacked, the positioning position is offset can be caused due to uneven distribution of gravity at two ends of the high-pressure oil pipe after the manual placement is finished, and the accurate positioning and the butting reliability is further influenced. Disclosure of Invention Aiming at the defects existing in the prior art, the invention provides the device for detecting the sealing reliability of the high-pressure oil pipe under the vibration load, which can effectively solve the problems that in the prior art, the high-pressure oil pipe sealing detection device generally does not have a low-frequency disturbance simulation function, only can reflect the sealing state of the high-pressure oil pipe under the static working condition, so that the deviation between the detection environment and the actual working condition is larger, the reference value of the detection result is limited, the clamping limiting and sealing butt joint work of the high-pressure oil pipe is lack of an effective position stabilizing structure, and the positioning position deviation is caused by uneven gravity distribution at the two ends of the high-pressure oil pipe after the manual positioning is finished, so that the clamping accuracy and the sealing butt joint reliability are further influenced. In order to achieve the above purpose, the invention is realized by the following technical scheme: The invention provides a sealing reliability detection device under vibration load of a high-pressure oil pipe, which comprises: The middle part of the upper end is provided with a frame platform with an avoidance port, the left side and the right side of the upper end of the frame platform are respectively provided with a support frame which is 匚 -shaped, the upper end of the frame platform is provided with a plurality of bases which are uniformly distributed in a rectangular shape, the lower side of the avoidance port on the frame platform is provided with a bearing plate, the upper end of the bearing plate is provided with a support frame in bilateral symmetry, the bearing plate and the left and right support f