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CN-122016173-A - Copper shell rotary joint sealing detection device and detection method thereof

CN122016173ACN 122016173 ACN122016173 ACN 122016173ACN-122016173-A

Abstract

The invention relates to the technical field of seal detection, and discloses a copper shell rotary joint seal detection device and a detection method thereof, wherein the copper shell rotary joint seal detection device comprises a base, a connecting plate is fixedly connected to the top of the base, a first connecting ring is fixedly connected to the front end of the connecting plate, and a detection assembly is fixedly connected to the inner wall of the first connecting ring; the detection assembly comprises a first hollow column, wherein the outer wall of the first hollow column is fixedly connected with a first connecting ring, the top of the first hollow column is fixedly connected with a second hollow column, the bottom of the first hollow column is fixedly connected with a motor, the detection assembly is arranged to enable the detection assembly to truly simulate the motion state under the actual working condition in the detection process, compared with the static detection, the detection assembly can not only expose the weak links which are difficult to detect in the static state, but also reveal the influence of dynamic factors on the sealing performance, and ensure the sealing stability of the rotary joint under the long-term dynamic operation.

Inventors

  • Ni Bang
  • CHEN LIYING
  • NI ZHENWEI

Assignees

  • 滕州市兴发金属制造有限责任公司

Dates

Publication Date
20260512
Application Date
20260323

Claims (9)

  1. 1. The utility model provides a copper shell rotary joint seals detection device, includes base (1), the top fixedly connected with connecting plate (101) of base (1), the front end fixedly connected with first go-between (102) of connecting plate (101), its characterized in that, the inner wall fixedly connected with of first go-between (102) detects subassembly (2); the detection assembly (2) comprises: The novel hollow column comprises a first hollow column (201), wherein the outer wall of the first hollow column (201) is fixedly connected with a first connecting ring (102), the top of the first hollow column (201) is fixedly connected with a second hollow column (203), the bottom of the first hollow column (201) is fixedly connected with a motor (202), the inner wall of the second hollow column (203) is fixedly connected with a second connecting ring (204), the inner wall of the second connecting ring (204) is movably connected with a 22, and the output end of the motor (202) is fixedly connected with the second connecting ring (204), wherein the motor (202) is used for driving a center assembly (21) to rotate.
  2. 2. The copper shell rotary joint seal detection device according to claim 1, wherein a first push rod (103) is fixedly connected to the top of the connecting plate (101), a second push rod (105) is fixedly connected to the top of the connecting plate (101), a movable assembly (12) is fixedly connected to the top of the second push rod (105), the second push rod (105) can control the height of the movable assembly (12), and the first push rod (103) can control the height of the first movable plate (104).
  3. 3. The copper shell rotary joint seal detection device according to claim 2, wherein the front end of the first movable plate (104) is fixedly connected with a moving device (106), the front end of the moving device (106) is movably connected with fixing assemblies (11), the number of the fixing assemblies (11) is two, the two fixing assemblies (11) are symmetrically arranged on the moving device (106), and the moving device (106) can control the movement of the fixing assemblies (11).
  4. 4. The copper shell rotary joint seal detection device according to claim 3, wherein the fixing assembly (11) comprises a sliding block (111), the outer wall of the sliding block (111) is movably connected with the moving device (106), a first right angle plate (112) is fixedly connected to one side, away from the moving device (106), of the sliding block (111), a clamping block (113) is fixedly connected to one side, away from the sliding block (111), of the first right angle plate (112), the clamping block (113) is made of a flexible material, and the moving device (106) can drive the sliding block (111) to move and clamp the rotary joint through the clamping block (113).
  5. 5. The copper shell rotary joint seal detection device according to claim 4, wherein the movable assembly (12) comprises a second movable plate (121), the outer wall of the first right angle plate (112) is movably connected with the connecting plate (101), a second right angle plate (122) is fixedly connected to the top of the second movable plate (121), and an air inlet assembly (123) is fixedly connected to the front end of the first right angle plate (112), wherein the air inlet assembly (123) is used for supplying air to the rotary joint.
  6. 6. The copper shell rotary joint seal detection device according to claim 5, wherein the center assembly (21) comprises a third hollow column (211), a first sealing ring (213) is fixedly connected to the top of the third hollow column (211), a second sealing ring (214) is fixedly connected to the inner wall of the top of the third hollow column (211), a notch (212) is formed in the outer wall of the bottom of the third hollow column (211), and the bottom of the rotary joint can be sealed by the first sealing ring (213) and the second sealing ring (214).
  7. 7. The copper shell rotary joint seal detection device according to claim 6, wherein a blocking plate (215) is fixedly connected to the inner wall of the third hollow column (211), an elastic component (216) is fixedly connected to the top of the blocking plate (215), the outer wall of the elastic component (216) is movably connected with the third hollow column (211), and the elastic component (216) can block the notch (212).
  8. 8. The copper shell rotary joint seal detection device according to claim 7, wherein a connecting block (217) is fixedly connected to the bottom of the third hollow column (211), a sliding column (218) is fixedly connected to the bottom of the connecting block (217), a sliding groove (219) is formed in the outer wall of the sliding column (218), a sliding frame (2111) is movably connected to the outer wall of the sliding column (218), a protruding strip (2112) is fixedly connected to the inner wall of the sliding frame (2111), the outer wall of the protruding strip (2112) is movably connected with the sliding groove (219), a spring (2110) is fixedly connected to the inner wall of the sliding column (218), the bottom of the spring (2110) is fixedly connected with the protruding strip (2112), the output end of the motor (202) is fixedly connected with the sliding frame (2111), and the motor (202) can drive the central assembly (21) to integrally rotate when the protruding strip (2112) is driven to rotate.
  9. 9. The method for detecting the sealing of the copper shell rotary joint according to claim 8, comprising the following steps: S1, when the copper shell rotary joint is subjected to seal detection, the rotary joint is clamped and positioned by driving the fixing assembly (11) through the moving device (106), then the rotary joint is driven by the first push rod (103) to move downwards so as to be attached to the top of the center assembly (21), and in the pressing process, the third hollow column (211) of the center assembly (21) descends along with the rotary joint, so that the rotating end of the rotary joint is immersed in water between the second hollow column (203) and the second connecting ring (204); S2, starting a second push rod (105) to drive the movable assembly (12) to descend, enabling the air inlet assembly (123) to be embedded into an air inlet at the tail part of the rotary joint, applying certain pressure to the tail part of the joint, and ensuring good sealing contact; s3, starting a motor (202), and driving a central assembly (21) to rotate so as to drive a rotating end at the bottom of the copper shell rotary joint to synchronously rotate, so as to simulate the running state of the rotary joint under the actual working condition; S4, supplying gas into the rotary joint through the gas inlet assembly (123), and observing whether bubbles are generated in water between the second hollow column (203) and the second connecting ring (204) at the same time so as to judge the sealing performance of the rotary joint under the dynamic condition.

Description

Copper shell rotary joint sealing detection device and detection method thereof Technical Field The invention relates to the technical field of seal detection, in particular to a copper shell rotary joint seal detection device and a detection method thereof. Background Copper shell rotary joints are a very critical mechanical component and are widely applied to occasions requiring relative rotary motion and fluid (oil, water, cooling liquid and the like) transmission, such as hydraulic systems, cooling systems, machine tool machining centers and the like. The sealing performance of the device is directly related to the safe operation of the whole device, and environmental pollution, resource waste and even device failure caused by leakage are prevented. The patent application No. CN201310240588.3 discloses a rotary joint sealing detection device and a detection method thereof, wherein the detection device comprises a chassis, a water injection assembly, a sealing baffle and a central tube, wherein the chassis is arranged on an air inlet of a rotary joint in a sealing mode, the water injection assembly is arranged on the chassis and is used for injecting clear water into the rotary joint, the sealing baffle is arranged on a locking piece arranged at the tail part of the rotary joint in a sealing mode, a central hole is formed in the central position of the sealing baffle, and the central tube is inserted into a polytetrafluoroethylene sealing sleeve in sealing connection with the rotary joint from the central hole of the sealing baffle. Most of the existing copper shell rotary joint sealing detection equipment can only perform testing under static conditions, but cannot simulate the rotary motion state of the copper shell rotary joint under real working conditions, so that a plurality of sealing defects which can be exposed only in dynamic operation cannot be effectively detected, and the comprehensive evaluation of the sealing performance and long-term reliability of products is not facilitated. Disclosure of Invention Aiming at the defects of the prior art, the invention provides a copper shell rotary joint sealing detection device and a detection method thereof, which are used for solving the problems in the prior art. The copper shell rotary joint sealing detection device comprises a base, wherein the top of the base is fixedly connected with a connecting plate, the front end of the connecting plate is fixedly connected with a first connecting ring, and the inner wall of the first connecting ring is fixedly connected with a detection assembly; The detection assembly includes: The device comprises a first hollow column, wherein the outer wall of the first hollow column is fixedly connected with a first connecting ring, the top of the first hollow column is fixedly connected with a second hollow column, the bottom of the first hollow column is fixedly connected with a motor, the inner wall of the second hollow column is fixedly connected with a second connecting ring, the inner wall of the second connecting ring is movably connected with an output end of the motor and the second connecting ring are fixedly connected, the motor is used for driving a center assembly to rotate, a detection assembly is arranged to enable the motor to truly simulate the motion state under the actual working condition in the detection process, compared with static detection, the device can not only expose weak links which are difficult to detect in static state, but also reveal the influence of dynamic factors on sealing performance, and ensure the sealing stability of a rotary joint under long-term dynamic operation. According to the technical scheme, the first push rod of top fixedly connected with of connecting plate, the top fixedly connected with second push rod of connecting plate, the top fixedly connected with movable subassembly of second push rod, wherein, the second push rod can control movable subassembly's height, and the first push rod can control the height of first fly leaf, through setting up detection component, utilize pushing down the action to make rotary joint terminal surface and first sealing ring and the second sealing ring on the central subassembly form the laminating to effectively fill the clearance of contact surface, form reliable sealed barrier, ensure that all supply gases all are used for leak detection, avoid the erroneous judgement that produces because of sealed inefficacy. According to the technical scheme, the front end fixedly connected with mobile device of first fly leaf, mobile device's front end swing joint has fixed subassembly, fixed subassembly's quantity is two, two fixed subassembly is the symmetry setting on mobile device, and wherein, mobile device can control fixed subassembly's removal. According to the technical scheme, the fixed assembly comprises a sliding block, the outer wall of the sliding block is movably connected with the moving device, a first right angle plate is fi