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CN-117629529-B - Detection device for air valve soft sealing plane tightness

CN117629529BCN 117629529 BCN117629529 BCN 117629529BCN-117629529-B

Abstract

The application relates to a detection device for the sealing performance of an air valve soft sealing plane, which relates to the technical field of air valve sealing detection equipment and comprises a mounting seat, a guide stabilizing mechanism, a pressing mechanism and a driving mechanism, wherein the guide stabilizing mechanism is arranged on the mounting seat, the pressing mechanism is in sliding connection with the guide stabilizing mechanism, a plane propping seat is arranged on the pressing mechanism and is used for being abutted against the upper side of a workpiece to be detected, an air injection structure is arranged on the plane propping seat and is used for injecting air into the workpiece to be detected, and the driving mechanism is used for driving the pressing mechanism to slide along the guide direction of the guide stabilizing mechanism so as to drive the plane propping seat to be abutted against the upper side of the workpiece to be detected. Because the driving mechanism drives the pressing mechanism to slide along the guiding direction of the guiding stabilizing mechanism so as to drive the plane propping seat to be abutted against the upper side of the workpiece to be detected, the soft sealing plane of the air valve which is not formed is conveniently detected, and the driving mechanism can quickly lift the plane propping seat after the detection of the air valve is completed so as to conveniently detect the next air valve.

Inventors

  • XU FAN
  • Huang huanhuan
  • LIU SHUHUA
  • ZHU LONG
  • DONG LICHAO

Assignees

  • 武昌船舶重工集团有限公司

Dates

Publication Date
20260505
Application Date
20231130

Claims (6)

  1. 1. A device for detecting the tightness of a soft sealing plane of an air valve, comprising: a mounting base (1); a guide stabilizing mechanism (2) which is arranged on the mounting seat (1); The pressing mechanism (3) is slidably connected with the guide stabilizing mechanism (2), a plane propping seat (6) is arranged on the pressing mechanism (3), the plane propping seat (6) is used for being abutted to the upper side of a workpiece (5) to be tested, an air injection structure is arranged on the plane propping seat (6), and the air injection structure is used for injecting air into the workpiece (5) to be tested; the driving mechanism (4) is used for driving the pressing mechanism (3) to slide along the guiding direction of the guiding stabilizing mechanism (2) so as to drive the plane jacking seat (6) to be abutted against the upper side of the workpiece (5) to be tested; the pressing mechanism (3) comprises: the pressing component (31) is slidably connected with the guide stabilizing mechanism (2), and the plane jacking seat (6) is arranged on the lower side of the pressing component (31); the pressing and holding connecting piece (32) is used for connecting the pressing and holding assembly (31) and the driving mechanism (4), so that the driving mechanism (4) can drive the pressing and holding assembly (31) to slide along the guiding direction of the guiding and stabilizing mechanism (2) to drive the plane jacking seat (6) to be abutted to the upper side of the workpiece (5) to be tested; the press-holding connection (32) comprises: A connecting rod (321) one end of which is connected to the holding member (31); The pressing plate (322) is connected with the driving mechanism (4) and the other end of the connecting rod (321), so that when the driving mechanism (4) drives the pressing plate (322) to move, the connecting rod (321) drives the pressing and holding assembly (31) to move; The pressing and holding assembly (31) is provided with a hemispherical groove (3111), the connecting rod (321) comprises a spherical section (3211) and a flat section (3212) which are connected with each other, the flat section (3212) is connected with the pressing plate (322), and the spherical section (3211) is matched with the hemispherical groove (3111) and is pressed in the hemispherical groove (3111); The pressing assembly (31) comprises: The pressing and holding seat (311) is slidably connected with the guide stabilizing mechanism (2), the lower side of the pressing and holding assembly (31) is provided with the plane jacking seat (6), and the upper side of the pressing and holding seat (311) is provided with the hemispherical groove (3111); Cover plate (312), its lid is established hold seat (311) is pressed, be equipped with on cover plate (312) with spherical section (3211) complex second through-hole (3121), when cover plate (312) lid is established hold seat (311) is last, will spherical section (3211) card is established in hemisphere groove (3111), just flat section (3212) and part spherical section (3211) follow second through-hole (3121) stretch out cover plate (312).
  2. 2. The device for detecting the tightness of the soft sealing plane of the air valve according to claim 1, wherein the pressing seat (311) is provided with a plurality of first through holes (3112) and a guide hole (3113) at intervals along the circumferential direction, and the guide stabilizing mechanism (2) comprises: The number of the mounting screws (21) is the same as that of the first through holes (3112), one end of each mounting screw (21) penetrates through the corresponding first through hole (3112), the other end of each mounting screw is connected with the corresponding mounting seat (1), and the diameter of each mounting screw (21) is smaller than that of the corresponding first through hole (3112); The guide rod (22) comprises a guide section (221) and a first connecting section (222) and a second connecting section (223) which are arranged at two ends of the guide section (221), the guide section (221) penetrates through the guide hole (3113), the first connecting section (222) extends out of the guide hole (3113), the second connecting section (223) is connected with the mounting seat (1), and the diameter of the guide section (221) is matched with the diameter of the guide hole (3113).
  3. 3. A device for detecting the tightness of a soft sealing plane of an air valve according to claim 2, wherein a limit nut (211) is arranged at one end of the mounting screw (21) penetrating through the first through hole (3112), and the limit nut (211) is used for limiting the rising height of the pressing seat (311).
  4. 4. The device for detecting the tightness of the soft sealing plane of the air valve according to claim 2, wherein the pressing seat (311) is a stepped platform and comprises a first platform post (3114) and a second platform post (3115), the first platform post (3114) is located at the upper side of the second platform post (3115), the diameter of the first platform post (3114) is smaller than that of the second platform post (3115), and a plurality of first through holes (3112) and guide holes (3113) are located on the second platform post (3115).
  5. 5. A device for detecting the tightness of a soft sealing plane of an air valve according to claim 1, characterized in that said driving mechanism (4) comprises: a piston rod (41) connected to the pressure plate (322); the driving air cylinder (42) is connected with the piston rod (41) and is used for driving the piston rod (41) to extend or retract so as to drive the plane jacking seat (6) to be far away from or close to the workpiece (5) to be detected through the pressing plate (322).
  6. 6. A device for detecting the tightness of a soft sealing plane of an air valve as claimed in claim 1, wherein said gas injection structure comprises: An air injection inner pipe (61) which is arranged in the plane jacking seat (6), wherein the air injection inner pipe (61) is used for communicating with the workpiece (5) to be tested; and a branch pipe (62) which communicates with the gas injection inner pipe (61) and is used for injecting air into the gas injection inner pipe (61).

Description

Detection device for air valve soft sealing plane tightness Technical Field The invention relates to the technical field of air valve sealing detection equipment, in particular to a detection device for air valve soft sealing plane tightness. Background The air valve includes a valve member, a spool, and an emergency blow-off port valve, which is used primarily to distribute system air. The valve main sealing material is embedded into the valve rod by adopting a mould pressing process, so that the sealing material and valve rod metal are integrated, and the forming compactness of the sealing material and the filling compactness of the sealing material in a valve rod metal groove all have important influence on the realization of the sealing performance of the valve. In the prior art, after the air valve is completely formed, the air valve is mounted on a pipeline for sealing detection so as to determine whether the tightness of the air valve meets the standards. However, the air valve is completely molded and then subjected to sealing detection, and if the sealing performance is not up to standard, the valve rod of the finished product is scrapped, so that the problems of waste of processing materials and waste of processing time exist. Disclosure of Invention The application provides a device for detecting the sealing performance of a soft sealing plane of an air valve, which can solve the problems of waste of processing materials and waste of processing time caused by the fact that if the sealing performance is not up to standard, the finished valve rod is scrapped in the prior art after the air valve is completely formed. In a first aspect, an embodiment of the present application provides a device for detecting tightness of a soft sealing plane of an air valve, including: A mounting base; The guide stabilizing mechanism is arranged on the mounting seat; The pressing mechanism is slidably connected with the guide stabilizing mechanism, a plane propping seat is arranged on the pressing mechanism and is used for being abutted against the upper side of a workpiece to be tested, and an air injection structure is arranged on the plane propping seat and is used for injecting air into the workpiece to be tested; the driving mechanism is used for driving the pressing mechanism to slide along the guiding direction of the guiding stabilizing mechanism so as to drive the plane jacking seat to be abutted to the upper side of the workpiece to be tested. With reference to the first aspect, in one embodiment, the pressing mechanism includes: The pressing component is slidably connected with the guide stabilizing mechanism, and the plane jacking seat is arranged on the lower side of the pressing component; the pressing and holding connecting piece is used for connecting the pressing and holding assembly and the driving mechanism, so that the driving mechanism can drive the pressing and holding assembly to slide along the guiding direction of the guiding and stabilizing mechanism, and the plane pressing and holding seat is driven to abut against the upper side of the workpiece to be detected. With reference to the first aspect, in one embodiment, the press-holding connection includes: one end of the connecting rod is connected with the pressing and holding assembly; and the pressing plate is connected with the driving mechanism and the other end of the connecting rod, so that the pressing assembly is driven to move by the connecting rod when the driving mechanism drives the pressing plate to move. In combination with the first aspect, in an embodiment, the pressing component is provided with a hemispherical groove, the connecting rod includes a spherical section and a flat section which are connected with each other, the flat section is connected with the pressing plate, and the spherical section is matched with the hemispherical groove and is pressed in the hemispherical groove. With reference to the first aspect, in one embodiment, the pressing assembly includes: the pressing and holding seat is in sliding connection with the guide stabilizing mechanism, the plane jacking seat is arranged on the lower side of the pressing and holding assembly, and the hemispherical groove is formed in the upper side of the pressing and holding seat; the cover plate is covered on the pressing seat, a second through hole matched with the spherical section is formed in the cover plate, when the cover plate is covered on the pressing seat, the spherical section is clamped in the hemispherical groove, and the flat section and part of the spherical section extend out of the cover plate from the second through hole. With reference to the first aspect, in one embodiment, the pressing seat is provided with a plurality of first through holes and a guide hole at intervals along a circumferential direction, and the guide stabilizing mechanism includes: The mounting screws are the same in number as the first through holes, one end of each mounting