CN110913559B - Remote vacuum sealing connection mechanism for butt joint surface of accelerator detector thermostat - Google Patents
Remote vacuum sealing connection mechanism for butt joint surface of accelerator detector thermostat Download PDFInfo
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- CN110913559B CN110913559B CN201911356510.1A CN201911356510A CN110913559B CN 110913559 B CN110913559 B CN 110913559B CN 201911356510 A CN201911356510 A CN 201911356510A CN 110913559 B CN110913559 B CN 110913559B
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- 238000007789 sealing Methods 0.000 title claims abstract description 70
- 230000007246 mechanism Effects 0.000 title claims abstract description 59
- 210000001503 joint Anatomy 0.000 title claims abstract description 17
- 238000003825 pressing Methods 0.000 claims abstract description 24
- 230000006835 compression Effects 0.000 claims description 18
- 238000007906 compression Methods 0.000 claims description 18
- 230000008878 coupling Effects 0.000 claims description 13
- 238000010168 coupling process Methods 0.000 claims description 13
- 238000005859 coupling reaction Methods 0.000 claims description 13
- 239000002184 metal Substances 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 10
- 238000003466 welding Methods 0.000 claims description 9
- 238000009434 installation Methods 0.000 claims description 5
- 239000000523 sample Substances 0.000 claims 8
- 238000004891 communication Methods 0.000 claims 1
- 230000013011 mating Effects 0.000 claims 1
- 239000002245 particle Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
- H05H7/00—Details of devices of the types covered by groups H05H9/00, H05H11/00, H05H13/00
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
- H05H7/00—Details of devices of the types covered by groups H05H9/00, H05H11/00, H05H13/00
- H05H7/14—Vacuum chambers
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- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Gasket Seals (AREA)
- General Details Of Gearings (AREA)
Abstract
The remote vacuum sealing connection mechanism for the butt joint surface of the accelerator detector thermostat solves the technical problem of remote vacuum sealing connection of the butt joint surface of the accelerator detector thermostat, and is characterized in that a long shaft is installed on the outer wall of a thermostat shell, one end of the long shaft is connected with a pressing mechanism, the other end of the long shaft is connected with a driving mechanism, a movable side connecting flange is welded at the left end of a Y-shaped three-way vacuum tube, a fixed side inscribed spline flange is welded at the right end of the fixed side vacuum tube, the pressing mechanism comprises a centering flange, a movable side spline flange and an annular cylinder, the movable side spline flange is connected with an annular piston in the annular cylinder, a pressing gear is connected with a left protruding circular ring of the annular cylinder in a threaded manner, and the left end of the movable side spline flange is connected with a rotary gear.
Description
Technical Field
The invention belongs to the technical field of accelerators, and particularly relates to a remote vacuum sealing connection mechanism for a butt joint surface of an accelerator detector thermostat.
Background
An electron-positron collision machine is a particle accelerator which accelerates positive and negative electrons to extremely high energy, then causes the positive and negative electrons to collide, particle detectors are arranged at the periphery of a collision point of the accelerator, the distance from the collision point to the edge of the detector exceeds 6 meters, positive and negative electron double rings of the accelerator are led in from the outer side of the detector inwards, a part wrapped by the detector comprises a magnet cooled by a cryostat, an intersection area of the detector and the accelerator is called an MDI (detector accelerator interface), a fixed-side vacuum tube is arranged outside the MDI, a fixed-side external flange is welded at the left end of the fixed-side vacuum tube, a fixed-side internal flange is welded at the right end of the fixed-side vacuum tube and extends into the MDI, a cryostat is arranged in the MDI, a Y-shaped vacuum tube is arranged at the left end of the Y-shaped vacuum tube, the movable-side internal flange is required to be in sealing connection with the fixed-side internal flange, the temperature detector is required to be in an ultra-high vacuum sealing state, and the sealing position is required to be in a remote sealing connection with the fixed-side internal flange of the fixed-side internal flange, namely the vacuum sealing device is required to be in the vacuum sealing technology of the remote-side of the vacuum collision machine is developed.
Disclosure of Invention
The invention aims to solve the technical problem of how to realize remote vacuum sealing connection of a fixed side internal joint flange and a movable side internal joint flange of a butt joint surface of an accelerator detector thermostat on the butt joint surface through remote control, and particularly provides a remote vacuum sealing connection mechanism of the butt joint surface of the accelerator detector thermostat for solving the technical problem of remote vacuum sealing connection.
The technical proposal adopted by the invention comprises a thermostat shell and a fixed side vacuum tube, wherein the left end of the fixed side vacuum tube is welded with an external flange of the fixed side vacuum tube, the inside of the thermostat shell is provided with a first vacuum tube and a second vacuum tube, the left ends of the first vacuum tube and the second vacuum tube are communicated with the right end of a Y-shaped three-way vacuum tube on the moving side, the outer wall of the thermostat shell is provided with a long shaft, the right end of the long shaft is respectively connected with a horizontal manual driving mechanism for controlling a rotary gear and a vertical manual driving mechanism for controlling a pressing gear through a universal coupling, the left end of the long shaft is connected with the pressing mechanism through the universal coupling, the outer wall of the thermostat shell is provided with a first air tube for communicating with an air source, a movable side connecting flange is welded at the left end of the Y-shaped three-way vacuum tube, a sealing groove is processed at the left end face of the movable side connecting flange, a metal sealing ring is arranged in the sealing groove, and a fixed side inscribed spline flange is welded at the right end of the fixed side vacuum tube; the compressing mechanism comprises a centering flange and an annular cylinder, the annular cylinder comprises a cylinder body, an annular piston cavity and a sealing connection cavity are arranged on the cylinder body, a connection flange is arranged at the right end of the cylinder body, an annular piston is arranged in the annular piston cavity, sealing rings are respectively arranged at the inner diameter and the outer diameter of the annular piston, a screw hole is processed on the right end face of the annular piston, a convex circular ring protruding leftwards is arranged at the left end of the cylinder body, an external thread is processed on the outer diameter of the convex circular ring, a first air hole for being connected with a first air pipe is processed on the outer wall of the annular piston cavity, a movable side spline flange is sleeved on the outer diameter of the centering flange, the flange surface of the movable spline flange is connected with an annular piston in an annular cylinder, a compression gear is connected on an external thread of a convex circular ring protruding from the left end of the annular cylinder in a threaded manner, the tooth surface of the compression gear is meshed with the tooth surface of a first pinion shaft, the first pinion shaft is arranged on a first bracket, the first bracket is welded on a cylinder body, the left end of the movable spline flange is connected with a rotary gear, the tooth surface of the rotary gear is meshed with the tooth surface of a second pinion shaft, the second pinion shaft is arranged on a second bracket, and the second bracket is also welded on the cylinder body; the right end face of the fixed side internal spline flange is a fixed side sealing face, the left end face is a fixed side pressed face, a fixed side vacuum cavity for welding a fixed side vacuum tube is processed in the axial center of the fixed side internal spline flange, a plurality of fixed side spline teeth and fixed side spline grooves are uniformly distributed on the outer diameter of the fixed side sealing face, a fixed side conical guide face is processed on the fixed side spline teeth, a centering flange butt centering internal conical face is arranged at the left end of the centering flange, the outer diameter of the centering flange is a centering flange positioning face, the centering flange moves towards the fixed side internal spline flange in the butt joint process of the centering flange and the fixed side internal spline flange, centering is carried out through centering flange locating surface to through the contact of butt joint centering internal conical surface and fixed side internal spline flange's fixed side circular cone guide surface in the removal in-process, the movable side spline flange includes the piston joint face, is equipped with the arch of left side at the center of piston joint face, and this bellied internal surface is the removal side pressure tight face, and this bellied surface is rotatory gear installation face, has a plurality of and fixed side spline tooth and the fixed side spline groove matched removal side spline groove of fixed side spline tooth and fixed side spline groove's of fixed side equipartition at rotatory gear installation face's internal diameter.
4 Groups of long shaft supporting seats are uniformly distributed on the outer wall of the thermostat shell along the circumference, each group of long shaft supporting seats is provided with a plurality of long shafts in the axial direction, long shafts are installed in installation holes of the 4 groups of long shaft supporting seats, the length of each long shaft is 6-10 meters, each long shaft is composed of at least 3 shafts, and every 2 shafts are connected through universal couplings.
The right end of the long shaft is respectively connected with 2 groups of horizontal manual driving mechanisms for controlling the rotary gears and 2 groups of vertical manual driving mechanisms for controlling the pressing gears through a universal coupling, the horizontal manual driving mechanisms and the vertical manual driving mechanisms have the same structure and comprise gear boxes, a first conical gear shaft and a second conical gear shaft are arranged in the gear boxes, conical tooth surfaces of the first conical gear shaft are meshed with conical tooth surfaces of the second conical gear shaft, and a handle is connected with shaft ends of the first conical gear shaft in a threaded manner.
And a locating pin is further arranged on the thermostat shell, and a long-strip circular arc hole is processed on the piston connecting surface of the movable spline flange.
The right end of the thermostat shell is welded with a guide rail bracket, and the lower end of the guide rail bracket is provided with a linear guide rail.
The cylinder body is an annular cylinder body.
The fixed side vacuum cavity is in a step shape, and a second step surface which is formed by starting from the left side in the fixed side vacuum cavity in the step shape is a welding surface for welding the fixed side vacuum tube.
A second air pipe used for communicating with the pressure sensor is also arranged on the outer wall of the thermostat housing.
And a second air hole used for being connected with a second air pipe is also processed on the outer wall of the annular piston cavity.
The first air hole and the second air hole of the annular cylinder are on the same circumference.
The beneficial effects of the invention are as follows:
(1) According to the invention, 4 groups of long shaft supporting seats are uniformly distributed on the outer wall of a thermostat shell along the circumference, long shafts of 6-10 meters are respectively installed in mounting holes of the 4 groups of long shaft supporting seats, the right ends of the 4 long shafts are respectively connected with a horizontal manual driving mechanism for controlling a rotary gear and a vertical manual driving mechanism for controlling a pressing gear through universal couplings, and the left ends of the 4 long shafts are respectively connected with the pressing mechanisms through the universal couplings, so that long-distance remote operation of ultrahigh vacuum sealing connection is realized;
(2) The compressing mechanism comprises a centering flange, a movable side spline flange, an annular cylinder, a compressing gear and a rotating gear, wherein the movable side spline flange and the fixed side internal spline flange are mutually crossed, the centering is carried out through a centering flange positioning surface in the moving process, the centering is carried out through the contact of a centering inclined surface of the centering flange, which is in butt joint, with a fixed side conical guide surface of the fixed side internal spline flange, a metal sealing ring arranged in a left end face sealing groove of a movable side connecting flange is in contact with a sealing surface of the fixed side internal spline flange, the rotating gear is driven to rotate through a horizontal manual driving mechanism, so that movable side spline teeth axially overlap with the fixed side spline teeth, air is supplied to the annular cylinder through a first air pipe, and pneumatic compression is realized on the metal sealing ring arranged in a left end face sealing groove of the movable side connecting flange and the sealing surface of the fixed side internal spline flange; then, the vertical manual driving mechanism drives the internal thread of the pressing gear to rotate on the external thread machined on the outer diameter of the convex ring at the left end of the annular cylinder, the end face of the pressing gear is used for pressing the installation face of the rotary gear in the rotation process, the movable side pressing face is used for pressing the fixed side pressed face, the metal sealing ring installed in the left end face sealing groove of the movable side connecting flange and the sealing face of the fixed side inscribed spline flange are mechanically pressed, and the ultrahigh vacuum sealing connection is realized through the double pressing of the pneumatic pressing and the mechanical pressing.
(3) According to the compression mechanism, the metal sealing ring is adopted in the sealing groove of the left end face of the movable side connecting flange to realize mechanical compression with the sealing face of the fixed side inscribed spline flange, and the compression mechanism can also play a role in radiation protection.
(4) The length of the long shaft is 6-10 m, the long shaft with the length of 6-10 m is composed of at least 3 shafts, and every 2 shafts are connected by a universal coupling 7, so that the thermostat can adapt to the shape of a truncated cone.
(5) The horizontal manual driving mechanism and the vertical manual driving mechanism have the same structure and good interchangeability, and the reliability of the driving mechanism can be ensured by adopting 2 horizontal manual driving mechanisms which are symmetrically arranged and 2 vertical manual driving mechanisms which are symmetrically arranged, so that the phenomenon of engagement and locking of the bevel gear during disassembly can be prevented. The structure that the driving bevel gear is arranged on the output shaft of the micro motor to drive the driven bevel gear can also be adopted to realize electric automatic control.
(6) According to the invention, the first air pipe and the second air pipe are arranged on the outer wall of the thermostat shell, wherein the first air pipe is communicated with the origin, the first air pipe is an air inlet pipe, pneumatic compression is realized by supplying air to the annular cylinder, the first air pipe is also an air release pipe, pneumatic disassembly is realized by deflating and releasing the annular cylinder, and the second air pipe is communicated with the pressure sensor and is used for detecting the compression force of the annular cylinder, so that the reliability of pneumatic compression can be ensured.
(7) The invention also installs the locating pin on the said thermostat shell, process the long-strip circular arc hole on the piston junction surface of the said movable side spline flange, process the cooperation with long-strip circular arc hole on the piston junction surface of locating pin and movable side spline flange installed on the thermostat shell, has limited the turning angle of the piston junction surface of the movable side spline flange, play the role of turning limiting, can prevent turning in place, can prevent turning excessively, has guaranteed the reliability of the mechanical compression.
(8) The sealing connecting flange can be tightly pressed by forward rotation and can be loosened and disassembled by reverse rotation, so that the inside of the mechanism is convenient to maintain.
(9) The invention adopts the annular piston cavity arranged on the cylinder body, and the annular piston is arranged in the annular piston cavity, so that the center of the cylinder body vacates a larger space to be a sealing connecting cavity for installing a fixed side vacuum tube, a fixed side internal spline flange, a movable side Y-shaped three-way vacuum tube, a movable side spline flange, a movable side connecting flange and a centering flange.
Drawings
Figure 1 is a front view of the present invention,
Figure 2 is a schematic view of the internal structure of the present invention,
Figure 3 is an enlarged view of a portion of figure 2 at a,
Figure 4 is an enlarged left view of figure 2,
Figure 5 is an enlarged right-hand view of figure 2,
Figure 6 is a schematic view of the structure of the hold-down mechanism of the present invention,
Figure 7 is a schematic view of the manual drive mechanism of the present invention,
Figure 8 is a front view of the fixed side internal spline flange of the present invention,
Figure 9 is a right side view of figure 8,
Figure 10 is a cross-sectional view of B-B of figure 9,
Figure 11 is a front view of the mobile side spline flange of the present invention,
Figure 12 is a left side view of figure 11,
Figure 13 is a schematic view of the interface of the centering flange and the fixed side internal spline flange of the present invention,
Fig. 14 is a schematic view of the structure of the ring cylinder of the present invention.
In the figure:
1. A thermostat housing, a control device,
2. The pressing mechanism is arranged on the upper surface of the base,
2-1, A cylinder body, 2-2, an annular piston,
2-3, Sealing ring, 2-4, screw hole,
2-5 Parts of connecting flange, 2-6 parts of first air hole,
2-7, Second air holes, 2-8, raised circular rings,
2-9, External screw thread, 2-10, annular piston cavity,
2-11, Sealing the connecting cavity, 2-12, positioning pins,
2-13, Centering the flange,
2-13-1 Centering flange butt centering inner conical surface, 2-13-2 centering flange positioning surface,
2-14, Moving the side spline flange,
2-14-1, Piston connecting surface, 2-14-2, fifth screw mounting hole,
2-14-3, Moving side spline teeth, 2-14-4, moving side spline grooves,
2-14-5. Rotating gear mounting face, 2-14-6. Third screw mounting hole,
2-14-7, Compression surface, 2-14-8, strip arc hole
2-15, A pressing gear, 2-16, a first pinion shaft,
2-17, A first bracket, 2-18, a rotary gear,
2-19, A second pinion shaft, 2-20, a second bracket,
3-1, A horizontal manual driving mechanism, 3-2, a vertical manual driving mechanism,
31. A gear box, 32, a first bevel gear shaft,
33. A second bevel gear shaft, 34, a handle,
4. The long axis of the tube,
5-1, A first air pipe, 5-2, a second air pipe,
6. A long shaft supporting seat,
7. The universal coupling is provided with a plurality of grooves,
8-1, A first vacuum tube, 8-2, a second vacuum tube,
8-3, Moving the Y-shaped three-way vacuum tube on the side,
9. A fixed side vacuum tube 10. A fixed side external flange,
11. The first screw, 12, the second screw,
13. Third screw, 14, fourth screw, 15, fifth screw,
16. The fixed side is internally connected with a spline flange,
16-1, A stationary-side sealing surface, 16-2, a stationary-side vacuum chamber,
16-3, Fixed side spline teeth, 16-4, fixed side spline grooves,
16-5, Fixed side conical guide surface, 16-6, fixed side pressed surface,
16-7, The welding surface,
17. A movable side connecting flange 18. A metal sealing ring,
19. And 20, a guide rail bracket and a linear guide rail.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
As shown in fig. 1 to 5, the technical scheme adopted by the invention comprises a thermostat housing 1, wherein the thermostat housing 1 is a truncated cone with left and right ends open, a first vacuum tube 8-1 and a second vacuum tube 8-2 are arranged in the thermostat housing 1,4 groups of long shaft supporting seats 6 are uniformly distributed on the outer wall of the thermostat housing 1 along the circumference, each group of long shaft supporting seats 6 is provided with a plurality of long shafts 4 with the length of 6-10 meters in the mounting holes of the 4 groups of long shaft supporting seats 6 respectively, the long shafts 4 are composed of at least 3 joint shafts, each 2 joint shafts are connected by a universal coupler 7 so as to adapt to the shape of the outer wall of the thermostat housing 1 of the truncated cone, the right end of each 4 joint shafts 4 is respectively connected with 2 groups of horizontal manual driving mechanisms 3-1 for controlling a rotary gear and2 groups of vertical manual driving mechanisms 3-2 for controlling a compression gear through the universal coupler 7, each group of horizontal manual driving mechanisms 3-1 and the vertical manual driving mechanisms 3-2 are respectively fixedly connected with the long shafts 4 of the thermostat housing 1 through a first 11 and a constant temperature housing 4 respectively, the left end and the other end of each group of the constant shaft supporting seats are fixedly connected with the other end of the constant shaft 4 through a universal coupler 5-5, the constant shaft mechanisms are fixedly connected with the other end of the left end of the thermostat housing 1 and the constant shaft 4 through a second air tube 2, and the other end of the constant shaft is fixedly connected with the constant shaft 1 is fixedly connected with the other end of the air pipe 2 through a second air pipe 5-5, and the other end of the constant shaft mechanism is fixedly connected with the air pipe 1; the left ends of a first vacuum tube 8-1 and a second vacuum tube 8-2 in the thermostat shell 1 are communicated with the right end of a movable side Y-shaped three-way vacuum tube 8-3, a movable side connecting flange 17 is welded at the left end of the Y-shaped three-way vacuum tube 8-3, a sealing groove is processed at the left end face of the movable side connecting flange 17, a metal sealing ring 18 is arranged in the sealing groove, and a fixed side inscribed spline flange 16 is welded at the right end of a fixed side vacuum tube 9; a rail bracket 19 is welded to the right end of the thermostat housing 1, and a linear rail 20 is mounted to the lower end of the rail bracket 19.
As shown in fig. 3, 14 and 6, the hold-down mechanism 2 comprises a centering flange 2-13 and an annular cylinder, the annular cylinder comprises a cylinder body 2-1, the cylinder body 2-1 is an annular cylinder body, an annular piston cavity 2-10 and a sealing connecting cavity 2-11 are arranged on the annular cylinder body 2-1, a connecting flange 2-5 is arranged at the right end of the annular cylinder body 2-1, an annular piston 2-2 is arranged in the annular piston cavity 2-10, a sealing ring 2-3 is respectively arranged at the inner diameter and the outer diameter of the annular piston 2-2, screw holes 2-4 are processed on the right end surface of the annular piston 2-2, a raised circular ring 2-8 protruding leftwards is arranged at the left end of the raised circular ring 2-1, an external screw thread 2-9 is processed on the outer diameter of the raised circular ring 2-8, a first air hole 2-6 used for connecting with an air source is processed on the outer wall of the annular piston cavity 2-10, a second air hole 2-7 used for connecting with the air source 5-1 is also processed on the outer wall of the annular piston cavity 2-10, a constant temperature sensor is fixedly connected with the flange 2-14 on the same flange 2-14 through a flange 2-14 on the outer diameter of the centering flange 2-14, a flange 2-14 is fixedly connected with the flange 2-14 on the same flange 2-14 at the outer side of the centering flange through the flange 2-14, the annular cylinder is fixedly connected with the thermostat housing 1 through a second screw 12, a compression gear 2-15 is connected on an external thread 2-9 processed on the outer diameter of a convex circular ring 2-8 protruding at the left end of the annular cylinder in a threaded manner, the tooth surface of the compression gear 2-15 is meshed with the tooth surface of a first pinion shaft 2-16, the first pinion shaft 2-16 is arranged on a first bracket 2-17, the first bracket 2-17 is welded on a cylinder body 2-1 of the annular cylinder, a rotary gear 2-18 is connected at the left end of a movable side spline flange 2-14 through a third screw 13, the tooth surface of the rotary gear 2-18 is meshed with the tooth surface of a second pinion shaft 2-19, the second pinion shaft 2-19 is arranged on a second bracket 2-20, and the second bracket 2-20 is also welded on the cylinder body 2-1 of the annular cylinder; the shell 1 is also provided with positioning pins 2-12,
As shown in fig. 7, the horizontal manual driving mechanism 3-1 and the vertical manual driving mechanism 3-2 have the same structure, and each of them comprises a gear box 31, a first conical gear shaft 32 and a second conical gear shaft 33 are installed in the gear box 31, the conical tooth surface of the first conical gear shaft 32 is meshed with the conical tooth surface of the second conical gear shaft 33, and a handle 34 is connected with the shaft end of the first conical gear shaft 32 in a threaded manner;
As shown in fig. 8, 9 and 10, the right end surface of the fixed side internal spline flange 16 is a fixed side sealing surface 16-1, the left end surface is a fixed side compressed surface 16-6, a fixed side vacuum chamber 16-2 is processed in the axial center of the fixed side internal spline flange 16, the fixed side vacuum chamber 16-2 is in a step shape, a welding surface 16-7 for welding the fixed side vacuum tube 9 is arranged on a second step surface in the fixed side vacuum chamber 16-2 in the step shape, a plurality of fixed side spline teeth 16-3 and fixed side spline grooves 16-4 are uniformly distributed on the outer diameter of the fixed side sealing surface 16-1, and a fixed side conical guide surface 16-5 is processed on the fixed side spline teeth 16-3;
As shown in fig. 11 and 12, the moving-side spline flange 2-14 includes a piston connecting surface 2-14-1, a fifth screw mounting hole 2-14-2 is machined on the piston connecting surface 2-14-1, a left-side protrusion is arranged in the center of the piston connecting surface 2-14-1, the inner surface of the protrusion is a moving-side compression surface 2-14-7, the outer surface of the protrusion is a rotating gear mounting surface 2-14-5, a third screw mounting hole 2-14-6 is machined on the rotating gear mounting surface 2-14-5, a plurality of moving-side spline teeth 2-14-3 and moving-side spline grooves 2-14-4 matched with the fixed-side spline teeth 16-3 and the fixed-side spline grooves 16-4 are uniformly distributed on the inner diameter of the rotating gear mounting surface 2-14-5, and a long-strip circular arc hole 2-14-8 is machined on the piston connecting surface 2-14-1;
As shown in fig. 13, a fixed side conical guide surface 16-5 is provided at the right end of the fixed side internal spline flange 16, a centering flange butt centering inner conical surface 2-13-1 is provided at the left end of the centering flange 2-13, the outer diameter of the centering flange 2-13 is a centering flange positioning surface 2-13-2, the centering flange 2-13 moves toward the fixed side internal spline flange 16 during butt joint of the centering flange 2-13 and the fixed side internal spline flange 16, centering is performed by the centering flange positioning surface 2-13-2, and centering is performed by contact of the butt centering inner conical surface (2-13-1) and the fixed side conical guide surface 16-5 of the fixed side internal spline flange 16 during movement.
When in use, the first air pipe 5-1 arranged on the outer wall of the thermostat housing 1 is communicated with an air source, the second air pipe 5-2 is communicated with a pressure sensor, the thermostat is moved leftwards along the linear guide 20 through the linear guide 20, the moving side spline teeth 2-14-3 and the moving side spline grooves 2-14-4 of the moving side spline flange 2-14 arranged on the annular piston 2-2 in the annular cylinder are mutually intersected with the fixed side spline grooves 16-4 and the fixed side spline teeth 16-3, the moving is continued, the moving side spline flange 2-14 passes through the fixed side inscribed spline flange 16 in the intersected state, then the centering flange 2-13 moves towards the fixed side inscribed spline flange 16, and in the moving process, the centering flange is in centering and centering with the contact of the centering inclined plane 2-13-1 and the fixed side conical guide surface 16-5 of the fixed side inscribed spline flange 16, after the centering of the fixed side inscribed spline flange 16 and the centering flange 2-13, the moving is continued, so that the metal sealing ring 18 arranged in the left end face sealing groove of the moving side connecting flange 17 is in contact with the sealing face of the fixed side inscribed spline flange 16, at the moment, the rotation of the handle 34 of the 2 groups of horizontal manual driving mechanisms 3-1 drives the first conical gear shaft 32 and the second conical gear shaft 33 in the gear box 31 to rotate, and the universal coupling 7 drives the long shaft 4 to rotate, then the universal coupler 7 drives the second pinion shaft 2-19 to rotate, the second pinion shaft 2-19 drives the rotary gear 2-18 to rotate, the rotary gear 2-18 drives the long arc hole 2-14-8 processed on the piston connecting surface 2-14-1 of the movable side spline flange 2-14 to rotate on the positioning pin 2-12 arranged on the shell 1, the rotation angle of the piston connecting surface 2-14-1 of the movable side spline flange 2-14 is limited, the movable side spline teeth 2-14-3 axially overlap with the fixed side spline teeth 16-3, the annular cylinder is supplied with air through the first air pipe 5-1, the annular piston 2-2 in the annular cylinder moves rightwards, the movable side spline flange 2-14 is driven to move rightwards, the movable side compression surface 2-14-7 of the movable side spline flange 2-14 is compressed to a fixed side compressed surface 16-6 of the fixed side inscribed spline flange 16, the air cylinder continuously enters air, and a metal sealing ring 18 arranged in a left end face sealing groove of the movable side connecting flange 17 and a sealing surface of the fixed side inscribed spline flange 16 are compressed pneumatically; then, the handle 34 of the 2 groups of vertical manual driving mechanisms 3-2 rotates to drive the first bevel gear shaft 32 and the second bevel gear shaft 33 in the gear box 31 to rotate, the universal coupler 7 drives the long shaft 4 to rotate, the universal coupler 7 drives the first pinion shaft 2-16 to rotate, the first pinion shaft 2-16 drives the internal thread of the pressing gear 2-15 to rotate on the external thread 2-9 processed by the outer diameter of the convex circular ring 2-8 at the left end of the annular cylinder, the end face of the pressing gear 2-15 presses the rotary gear mounting face 2-14-5 in the rotating process, the fixed side pressed face 16-6 is pressed by the movable side pressing face 2-14-7, the metal seal ring 18 mounted in the left end face seal groove of the movable side connecting flange 17 and the seal face of the fixed side inscribed spline flange 16 are mechanically pressed.
When the disassembly is needed, the mechanical compression is firstly released, then the air is discharged and decompressed through the first air pipe 5-1, the rotary gear 2-18 is driven to reversely rotate through the second pinion shaft 2-19, and the positioning pin 2-12 arranged on the thermostat housing 1 limits the reverse rotation angle of the piston connecting surface 2-14-1 of the movable side spline flange 2-14, so that the movable side spline teeth 2-14-3 and the fixed side spline teeth 16-3 are axially overlapped and are mutually crossed, and the disassembly of the sealing connecting flange can be realized.
Claims (10)
1. The remote vacuum sealing connection mechanism for the butt joint surface of the accelerator detector thermostat comprises a thermostat shell (1) and a fixed side vacuum tube (9), wherein an external flange (10) of the fixed side vacuum tube is welded at the left end of the fixed side vacuum tube (9), a first vacuum tube (8-1) and a second vacuum tube (8-2) are arranged in the thermostat shell (1), the left ends of the first vacuum tube (8-1) and the second vacuum tube (8-2) are communicated with the right end of a movable side Y-shaped three-way vacuum tube (8-3), the remote vacuum sealing connection mechanism is characterized in that a long shaft (4) is arranged on the outer wall of the thermostat shell (1), the right end of the long shaft (4) is respectively connected with a horizontal manual driving mechanism (3-1) for controlling a rotary gear and a vertical manual driving mechanism (3-2) for controlling a pressing gear through a universal coupling (7), the left end of the long shaft (4) is connected with a pressing mechanism (2) through a universal coupling (7), a first air pipe (5-1) used for communicating with an air source is arranged on the outer wall of the thermostat shell (1), a movable side connecting flange (17) is welded at the left end of the Y-shaped three-way vacuum pipe (8-3), a sealing groove is processed at the left end face of the movable side connecting flange (17), a metal sealing ring (18) is arranged in the sealing groove, and a fixed side inscribed spline flange (16) is welded at the right end of the fixed side vacuum pipe (9); the compressing mechanism (2) comprises a centering flange (2-13) and an annular cylinder, the annular cylinder comprises a cylinder body (2-1), an annular piston cavity (2-10) and a sealing connecting cavity (2-11) are arranged on the cylinder body (2-1), a connecting flange (2-5) is arranged at the right end of the cylinder body (2-1), an annular piston (2-2) is arranged in the annular piston cavity (2-10), sealing rings (2-3) are respectively arranged at the inner diameter and the outer diameter of the annular piston (2-2), screw holes (2-4) are processed on the right end face of the annular piston (2-2), a convex circular ring (2-8) protruding leftwards is arranged at the left end of the cylinder body (2-1), an external thread (2-9) is processed on the outer diameter of the protruding circular ring (2-8), a first air hole (2-6) used for being connected with a first air pipe (5-1) is processed on the outer wall of the annular piston cavity (2-10), a movable side spline flange (2-14) is sleeved on the outer diameter of the centering flange (2-13), a flange surface of the movable side spline flange (2-14) is connected with the annular piston (2-2) in the annular cylinder, a compressing gear (2-15) is connected on the external thread (2-9) of the protruding circular ring (2-8) at the left end of the annular cylinder in a threaded manner, the tooth surface of the compressing gear (2-15) is meshed with the tooth surface of the first pinion shaft (2-16), the first pinion shaft (2-16) is arranged on the first bracket (2-17), the first bracket (2-17) is welded on the cylinder body (2-1), the left end of the movable spline flange (2-14) is connected with the rotary gear (2-18), the tooth surface of the rotary gear (2-18) is meshed with the tooth surface of the second pinion shaft (2-19), the second pinion shaft (2-19) is arranged on the second bracket (2-20), and the second bracket (2-20) is also welded on the cylinder body (2-1); the right end face of the fixed side internal spline flange (16) is a fixed side sealing face (16-1), the left end face is a fixed side pressed face (16-6), a fixed side vacuum cavity (16-2) for welding a fixed side vacuum tube (9) is processed at the axial center of the fixed side internal spline flange (16), a plurality of fixed side spline teeth (16-3) and fixed side spline grooves (16-4) are uniformly distributed on the outer diameter of the fixed side sealing face (16-1), a fixed side conical guide face (16-5) is processed on the fixed side spline teeth (16-3), a centering flange butt centering inner conical face (2-13-1) is arranged at the left end of the centering flange (2-13), the outer diameter of the centering flange (2-13) is a centering flange positioning surface (2-13-2), the centering flange (2-13) moves towards the fixed side internal spline flange (16) in the butt joint process of the centering flange (2-13) and the fixed side internal spline flange (16), the centering is performed through centering of the centering flange positioning surface (2-13-2) and centering of the centering internal conical surface (2-13-1) by contact of the butt joint centering internal conical surface (2-13-1) and the fixed side conical guide surface (16-5) of the fixed side internal spline flange (16) in the moving process, the moving side spline flange (2-14) comprises a piston connecting surface (2-14-1), the center of the piston connecting surface (2-14-1) is provided with a bulge at the left side, the inner surface of the bulge is a movable side compression surface (2-14-7), the outer surface of the bulge is a rotary gear mounting surface (2-14-5), and a plurality of movable side spline teeth (2-14-3) and movable side spline grooves (2-14-4) matched with the fixed side spline teeth (16-3) and the fixed side spline grooves (16-4) are uniformly distributed on the inner diameter of the rotary gear mounting surface (2-14-5).
2. Remote vacuum sealing connection mechanism for the butt joint surface of an accelerator detector thermostat according to claim 1, characterized in that 4 groups of long shaft supporting seats (6) are uniformly distributed on the outer wall of the thermostat housing (1) along the circumference, each group of long shaft supporting seats (6) is provided with a plurality of long shafts (4) in the axial direction, the long shafts (4) are installed in the installation holes of the 4 groups of long shaft supporting seats (6), the length of each long shaft (4) is 6-10 meters, each long shaft consists of at least 3 shafts, and each 2 shafts are connected by a universal coupling (7).
3. Remote vacuum sealing connection mechanism for the butt joint surface of an accelerator probe thermostat according to claim 1, characterized in that 2 groups of horizontal manual driving mechanisms (3-1) for controlling a rotary gear and 2 groups of vertical manual driving mechanisms (3-2) for controlling a pressing gear are connected to the right end of a long shaft (4) through universal couplings (7), the horizontal manual driving mechanisms (3-1) and the vertical manual driving mechanisms (3-2) are identical in structure, each comprise a gear box (31), a first conical gear shaft (32) and a second conical gear shaft (33) are installed in the gear box (31), conical tooth surfaces of the first conical gear shaft (32) are meshed with conical tooth surfaces of the second conical gear shaft (33), and a handle (34) is connected to the shaft end of the first conical gear shaft (32) in a threaded manner.
4. Remote vacuum sealing connection of accelerator probe thermostats according to claim 1, characterized in that the thermostat housing (1) is also fitted with a locating pin (2-12), and the piston connection face (2-14-1) of the moving side spline flange (2-14) is machined with an elongated circular arc hole (2-14-8).
5. Remote vacuum sealing connection mechanism for the interface of an accelerator probe thermostat according to claim 1, characterized in that a rail bracket (19) is welded to the right end of the thermostat housing (1), and a linear rail (20) is mounted to the lower end of the rail bracket (19).
6. A remote vacuum tight connection for an accelerator probe thermostat interface according to claim 1, characterized in that the cylinder block (2-1) is a ring-shaped cylinder block.
7. Remote vacuum sealing connection for the mating surface of an accelerator probe thermostat according to claim 1, characterized in that the stationary side vacuum chamber (16-2) has a stepped shape, the second stepped surface from the left inside the stationary side vacuum chamber (16-2) of the stepped shape being a welding surface (16-7) for welding the stationary side vacuum tube (9).
8. A remote vacuum tight connection for an accelerator probe thermostat interface according to claim 1, characterized in that a second air pipe (5-2) for communication with a pressure sensor is also mounted on the outer wall of the thermostat housing (1).
9. Remote vacuum sealing connection of accelerator probe thermostat interface according to claim 8, characterized in that a second air hole (2-7) for connection with a second air pipe (5-2) is also machined on the outer wall of the annular piston chamber (2-10).
10. A remote vacuum tight connection of accelerator probe thermostats according to claim 9, wherein the first and second air holes (2-6, 2-7) of the annular cylinder are on the same circumference.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911356510.1A CN110913559B (en) | 2019-12-25 | 2019-12-25 | Remote vacuum sealing connection mechanism for butt joint surface of accelerator detector thermostat |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911356510.1A CN110913559B (en) | 2019-12-25 | 2019-12-25 | Remote vacuum sealing connection mechanism for butt joint surface of accelerator detector thermostat |
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| CN110913559B true CN110913559B (en) | 2024-06-18 |
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| CN211457491U (en) * | 2019-12-25 | 2020-09-08 | 沈阳慧宇真空技术有限公司 | Remote vacuum sealing connection mechanism for butt joint surface of accelerator detector thermostat |
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| CN204300562U (en) * | 2014-11-26 | 2015-04-29 | 中国石油集团西部钻探工程有限公司 | Rotary-type adpting flange device |
| CN106132066B (en) * | 2016-07-29 | 2018-07-06 | 中国原子能科学研究院 | A kind of sealing structure of the cryostat of superconducting cyclotron |
| KR101956148B1 (en) * | 2016-11-29 | 2019-03-11 | 주식회사 다원시스 | Detachable Vacuum Pipe-Flange Set for Particle Accelerator Beam Line and Connecting Method Thereof |
| CN107941261B (en) * | 2017-12-05 | 2019-07-09 | 中国科学院高能物理研究所 | A kind of sensor device low-temperature test platform |
| CN108387064B (en) * | 2018-04-03 | 2024-06-14 | 同方威视技术股份有限公司 | Cryostat |
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| CN211457491U (en) * | 2019-12-25 | 2020-09-08 | 沈阳慧宇真空技术有限公司 | Remote vacuum sealing connection mechanism for butt joint surface of accelerator detector thermostat |
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