CN216410909U - Frock is suppressed to whirling room opposite sex hole - Google Patents
Frock is suppressed to whirling room opposite sex hole Download PDFInfo
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- CN216410909U CN216410909U CN202122271400.4U CN202122271400U CN216410909U CN 216410909 U CN216410909 U CN 216410909U CN 202122271400 U CN202122271400 U CN 202122271400U CN 216410909 U CN216410909 U CN 216410909U
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Abstract
The utility model discloses a pressing tool for an opposite-sex inner hole of a cyclone chamber, which comprises: the cylindrical mandrel is used for enabling one side of an inner ring of the cyclone chamber to be attached to a shorter section of the installation groove when the cyclone chamber is fixed, the pressing ring is in a hollow circular ring shape, the axis of the pressing ring coincides with the axis of the cylindrical mandrel, one side of the pressing ring, close to the cylindrical mandrel, is provided with a matching groove with an L-shaped cross section, the matching groove is matched with the fixing groove, the pressing plate is a circular flat plate, the surface of the pressing plate is perpendicular to the axis of the cylindrical mandrel, the center of the pressing plate is provided with an installation hole for fixing the pressing plate and the cylindrical mandrel, the outer diameter of the pressing plate is larger than the inner diameter of one side, far away from the cylindrical mandrel, of the pressing ring, and the pressing plate is used for fixing the pressing ring on the cylindrical mandrel; according to the utility model, 3 sealing rings, the pressing ring and the pressing plate are arranged to be matched with each other, the cavity is automatically formed, and the brazing seam is leaked, so that the leakage condition in the pressing process can be conveniently observed.
Description
Technical Field
The utility model belongs to the field of engine fuel pipes, and particularly relates to a different-shape inner hole pressing tool for a cyclone chamber.
Background
The electric arc heater is one of devices with high effect in simulating the hypersonic speed thermal barrier effect in a ground test, and plays an important role in the research of the hypersonic speed aircraft thermal protection. Currently, with the construction and use of high enthalpy and high power arc heater devices, higher requirements are placed on the performance of each component of the heating device.
At present, most types of cyclone chamber shells are connected with an air inlet ring in an integral sleeving welding mode. The structure leads to high structural complexity of the cyclone chamber, high redundancy of an axial structure and long processing period, and restricts the structural design and the performance improvement of the heater. In addition, when the arc heater runs at high power, a high-temperature high-pressure flow field in the rotary air chamber of the heater is easy to cause water seepage and air leakage in a weld gap, so that the test fails.
Lack among the prior art and suppress frock to whirlwind chamber opposite sex hole, need carry out pressure test to the bore seam, because inside cavity is the abnormal shape face, be difficult to directly seal with O type circle, consequently can't suppress the test.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a pressing tool for an opposite-nature inner hole of a cyclone chamber, and the pressing tool is used for solving the problem that the pressing test cannot be carried out on the cyclone chamber.
The utility model adopts the following technical scheme: the utility model provides a frock is suppressed to cyclone room opposite sex hole, includes:
the two ends of the columnar mandrel are respectively provided with a head end and a tail end, a mounting groove with an L-shaped cross section is arranged near the tail end around the outer wall of the columnar mandrel, a longer section of the mounting groove is parallel to the axis of the columnar mandrel, a shorter section of the mounting groove is vertical to the columnar mandrel, so that the tail end of the columnar mandrel extends outwards, when the gas rotating chamber is fixed, one side of an inner ring of the gas rotating chamber is attached to a shorter section of the mounting groove, a fixing groove with an L-shaped cross section is arranged near the outer wall of the head end, a shorter section of the fixing groove is parallel to the axis of the columnar mandrel, a longer section of the fixing groove is vertical to the columnar mandrel, the end of the longer section of the fixing groove is communicated with the longer section of the mounting groove, the mounting groove and the fixing groove are matched with each other to enable the columnar mandrel to sequentially form two steps from the head end to the tail end, the two steps are respectively a head end step near the head end and a tail end step near the tail end, and the step surfaces of the head end step are both parallel to the axis of the columnar mandrel,
the compression ring is in a hollow circular ring shape, the axis of the compression ring is coincided with the axis of the columnar core shaft, one side of the compression ring, which is close to the columnar core shaft, is provided with a matching groove with an L-shaped cross section, the matching groove is mutually matched with the fixed groove, so that the compression ring compresses the other side of the inner ring positioned on the tail end step, two sides of the inner ring are respectively attached to one side of the compression ring and a shorter section of the installation groove,
the pressing plate is a circular flat plate, the plate surface of the pressing plate is perpendicular to the axis of the columnar core shaft, the center of the pressing plate is provided with a mounting hole used for fixing the pressing plate and the columnar core shaft, the outer diameter of the pressing plate is larger than the inner diameter of the pressing ring far away from one side of the columnar core shaft, and the pressing plate is used for fixing the pressing ring on the columnar core shaft.
Furthermore, O-shaped sealing rings are arranged between one side of the inner ring of the cyclone chamber and a shorter section of the installation groove, between the other side of the inner ring of the cyclone chamber and the pressure ring, and between the pressure ring and the tail end step, and the O-shaped sealing rings between the pressure ring and the tail end step are used for sealing the inner end of the inner extending hole.
Further, the outer wall of clamping ring and the outer wall parallel and level of column dabber.
Further, the axis of the cyclone chamber is coincident with the axis of the columnar mandrel after being fixed.
The utility model has the beneficial effects that: according to the utility model, 3 sealing rings, the pressing ring and the pressing plate are arranged to be matched with each other, the cavity is automatically formed, and the brazing seam is leaked, so that the leakage condition in the pressing process can be conveniently observed.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic cross-sectional view of the cyclone chamber according to the present invention;
fig. 3 is a schematic longitudinal sectional view of the outer ring of the cyclone chamber of the present invention.
Wherein: 1. a columnar mandrel; 2. a head end; 3. a tail end; 4. mounting grooves; 5. fixing grooves; 6. a head end step; 7. a tail end step; 8. pressing a ring; 9. a mating groove; 10. pressing a plate; 11. an outer ring; 12. an inner ring; 13. a cooling water passage; 14. a buckle plate; 15. a snap ring groove; 16. a gas collection channel; 17. an air inlet; 18. a stepped bore; 19. and (4) extending the hole inwards.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
The utility model discloses a heterogeneous inner hole pressing tool of a cyclone chamber, which comprises a columnar mandrel 1, a pressing ring 8 and a pressing plate 10, wherein the two ends of the columnar mandrel 1 are respectively a head end 2 and a tail end 3, a mounting groove 4 with an L-shaped cross section is arranged around the outer wall of the columnar mandrel 1 near the tail end 3, the longer section of the mounting groove 4 is parallel to the axis of the columnar mandrel 1, the shorter section of the mounting groove 4 is vertical to the columnar mandrel 1, the tail end 3 of the columnar mandrel 1 extends outwards, when the cyclone chamber is fixed, one side of an inner ring 12 of the cyclone chamber is attached to the shorter section of the mounting groove 4, a fixing groove 5 with an L-shaped cross section is arranged around the outer wall of the head end 2, the shorter section of the fixing groove 5 is parallel to the axis of the columnar mandrel 1, the longer section is vertical to the columnar mandrel 1, the end part of the longer section is communicated with the longer section of the mounting groove 4, the mounting groove 4 and the fixing groove 5 are matched with each other, so that the columnar mandrel 1 sequentially forms two steps from the head end 2 to the tail end 3, the two steps are respectively a head end step 6 close to the head end 2 and a tail end step 7 close to the tail end 3, and the step surfaces of the head end step 6 and the tail end step 7 are parallel to the axis of the columnar mandrel 1.
Clamping ring 8 is the hollow ring form, and the axis of clamping ring 8 coincides with 1 axis of column dabber mutually, and clamping ring 8 is close to one side of column dabber 1 and has been seted up the cooperation groove 9 that the cross section is L shape, and cooperation groove 9 coincide each other with fixed slot 5 for clamping ring 8 compresses tightly the inner ring 12 of the chamber of revolving on being located tail end step 7, makes the both sides of inner ring 12 paste respectively in clamping ring 8 one side and the shorter section of mounting groove 4.
The clamp plate 10 is a circular flat plate, the surface of the clamp plate 10 is perpendicular to the axis of the columnar mandrel 1, the center of the clamp plate 10 is provided with a mounting hole for fixing the clamp plate 10 and the columnar mandrel 1, the outer diameter of the clamp plate 10 is larger than the inner diameter of the clamp ring 8 far away from one side of the columnar mandrel 1, and the clamp plate 10 is used for fixing the clamp ring 8 on the columnar mandrel 1. Through the internal diameter that is greater than clamping ring 8 and keeps away from 1 one side of columnar dabber with the external diameter setting of clamp plate 10, can guarantee that clamp plate 10 can suppress clamping ring 8 for the whirling chamber can be fixed between clamping ring 8 and the extension department of columnar dabber 1, and then fixes the whirling chamber, and the convenience is further processed the whirling chamber.
O-shaped sealing rings are arranged between one side of the inner ring 12 of the cyclone chamber and the shorter section of the mounting groove 4, between the other side of the inner ring 12 of the cyclone chamber and the pressing ring 8, and between the pressing ring 8 and the tail end step 7, and the O-shaped sealing rings between the pressing ring 8 and the tail end step 7 are used for sealing the inner end of the inner extending hole 19. Between one side of whirling air chamber inner ring 12 and the short section of mounting groove 4, all be provided with the first sealing washer of O type between the opposite side of whirling air chamber inner ring 12 and clamping ring 8, be provided with the second sealing washer of O type between clamping ring 8 and the tail end step 7, the outer wall of clamping ring 8 and the outer wall parallel and level of column dabber 1, its axis of whirling air chamber is coincidence with the axis of column dabber 1 after fixed.
The tool for pressing the different-shape inner hole of the cyclone chamber is lacked in the prior art, pressure test is needed to be carried out on a drill seam, and the inner cavity is a special-shaped surface and is difficult to directly seal by an O-shaped ring, so that the pressing process is difficult. According to the utility model, 3 sealing rings are arranged, the pressing ring 8 and the pressing plate 10 are matched with each other, a cavity is formed by self, and a brazing seam leaks out, so that the leakage condition in the pressing process can be observed conveniently.
As shown in fig. 2 and 3, the structure of the cyclone chamber includes: the axes coincide with each other, and be hollow circular cylinder's outer loop 11 and inner ring 12, outer loop 11 is located the periphery of inner ring 12, seted up circular shape catching ring groove 15 on the anchor ring of one side of outer loop 11, the central point of catching ring groove 15 coincides with the central point of outer loop 11, the anchor ring of the other side of orientation outer loop 11 in catching ring groove 15, inwards seted up the cooling trough promptly, the central point of cooling trough coincides with the central point of outer loop 11, the whirling air chamber still includes the catching ring board, the catching ring board forms cooling water passageway 13 with the cooling water trough is mutually supported, be provided with water supply connector and end cap on the cooling water passageway 13.
Around 11 inner wall a week of outer ring, seted up outer recess, the inner groovy has been seted up around 12 outer wall a week of inner ring, inner groovy and outer notch mouth are to mouthful mutually supporting annular gas collection passageway 16 that forms, it runs through from the extroversion inwards to have seted up a plurality of inlet ports 17 to surround 12 a week of inner ring, a plurality of inlet ports 17 are around 12 a week spiral settings of inner ring, each inlet port 17 comprises step hole 18 and the interior hole 19 that stretches out of connecting, step hole 18 and the coaxial setting of the interior hole 19 that stretches out, and the diameter of step hole 18 is greater than the diameter of the interior hole 19 that stretches out, be step hole 18 near outer ring 11, be close to inner ring 12 and stretch out hole 19 in.
The processing method of the outer ring comprises the following steps:
a hollow outer ring 11 is lathed at the central position of the circular metal matrix,
an outer groove is lathed around the inner wall of the outer ring 11,
a circular snap ring groove 15 is lathed on the ring surface at one side of the outer ring 11, the central point of the snap ring groove 15 is superposed with the central point of the outer ring 11,
a cooling water tank is milled inwards in the snap ring groove 15, and the central point of the cooling water tank is superposed with the central point of the outer ring 11; for example, a D3 cutter is selected, the feeding is 1000mmpm, the rotating speed is 1800rpm, the cutting feed is 0.06mm, and the effective length of the cutter is more than 15 mm;
an inner groove, a step hole 18 and an inner extending hole 19 are formed in the inner ring 12, and the outer ring 11 and the inner ring 12 are brazed to obtain the cyclone chamber.
The processing method of the inner ring comprises the following steps:
a hollow inner ring 12 is machined at the center of the circular ring metal base body,
an inner groove is lathed around the outer wall of the inner ring 12, so that the inner groove corresponds to the outer groove,
a step hole 18 is milled on the inner ring 12 near the outer ring 11 by a milling cutter,
an inner extending hole 19 is milled on the inner ring 12 and close to the inner ring 12 by using a milling cutter, and the stepped hole 18 and the inner extending hole 19 are coaxially arranged;
the inwardly extending bore 19 is processed with a drill bit,
milling the inner extending hole 19 by using a milling cutter, so that the connected step hole 18 and the inner extending hole 19 form the air inlet holes 17, the plurality of air inlet holes 17 are formed by penetrating from outside to inside around the inner ring 12 in a circle, and the plurality of air inlet holes 17 are spirally arranged around the inner ring 12 in a circle. For example, a phi 3 milling cutter is used for milling a phi 4 hole, the rotating speed is 2000rpm, the feeding amount is 800mmpm, a phi 1.5 milling cutter is used for milling a phi 1.6-1.7 hole, the rotating speed is 2100rpm, the feeding amount is 500mmpm, a ZT phi 1.8 drill is used for drilling a phi 1.8-1.9 bottom hole, the rotating speed is 1800rpm, the feeding amount is 30mmpm, and a phi 2 milling cutter is used for reaming a phi 2 +/-0.03 hole, the rotating speed is 800rpm, and the feeding amount is 15 mmpm.
A buckle ring plate is arranged in the buckle ring groove 15, faces the cooling water tank and is matched with the cooling water tank to form a cooling water channel 13; after the inner ring 12 and the outer ring 11 are obtained by processing, the inner ring 12 and the outer ring 11 are brazed to obtain the cyclone chamber, and the brazing method comprises the following steps: and (3) adhering brazing filler metal on one surface of the snap ring plate facing the cooling water tank, presetting the brazing filler metal on the peripheries of the inner groove and the outer groove, enabling the openings of the inner groove and the outer groove to be matched with each other in an opposite mode to form an annular gas collection channel 16, and then carrying out vacuum brazing to obtain the cyclone chamber. In the prior art, the shell of the cyclone chamber and the air inlet ring are connected in a brazing mode, and compared with 3D printing, the processing method disclosed by the utility model can ensure the surface roughness and the precision of the air collecting channel, the cooling water channel and the air inlet hole in a machining mode.
The brazing specific method comprises the following steps:
a, vacuumizing: cold state vacuum pumping to make the vacuum degree in the furnace reach 6-9X 10-3Pa, working vacuum degree of 1-2X 10- 2Pa；
B: heating procedure:
heating to 350-;
heating to 900-;
heating to 1000-1010 ℃ at the speed of 400-450 ℃/h to start brazing;
c: vacuum brazing: brazing at the temperature of 1000-;
d: and (3) cooling procedure: after the soldering is finishedAfter the furnace is cooled to 850-900 ℃ in vacuum, high-purity gas Ar is filled in the furnace, wherein Ar is more than or equal to 99.999 percent or N2Cooling to 550-650 deg.C at 99.999%, and filling pure gas to make the pressure in the furnace reach 8-9 × 104And after Pa, starting a fan to cool to 60-70 ℃ and discharging.
After the cyclone chamber is processed and obtained, the inner ring 12 and the outer ring 11 are brazed to obtain the cyclone chamber, so that the cyclone chamber needs to be subjected to sealing test detection, namely a pressurizing test, when the gas collecting channel 16 and the cooling water channel 13 of the cyclone chamber are subjected to the pressurizing test, one end of the cooling water channel 13 is plugged by using a plug, the inner end of the inward extending hole 19 is sealed by using a second sealing ring, then water is filled into the gas collecting channel 16 through a connector to be pressurized to 5MPa of water pressure, the pressure is slowly increased to 5min of water pressure test, and the brazing seam does not leak after 5min of pressure maintaining.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent replacements, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (4)
1. The utility model provides a frock is suppressed to cyclone room opposite sex hole which characterized in that includes:
column dabber (1), its both ends are head end (2) and tail end (3) respectively, are close to tail end (3) and locate to set up mounting groove (4) that the cross section is L shape around its outer wall, the longer section of mounting groove (4) is parallel with the axis of column dabber (1), and shorter section is perpendicular with column dabber (1), and then makes tail end (3) of column dabber (1) outwards extend, when the fixed chamber of revolving, makes one side subsides of the chamber of revolving inner ring (12) on the shorter section of mounting groove (4), fixed slot (5) that the cross section is L shape are seted up around its outer wall in head end (2) department, the shorter section of fixed slot (5) is parallel with the axis of column dabber (1), and longer section is perpendicular with column dabber (1), and its tip communicates with mounting groove (4) longer section each other, mounting groove (4) and fixed slot (5) mutually support and make column dabber (1) from head end (2) to tail end (3) in proper order Two steps are formed, the two steps are respectively a head end step (6) close to the head end (2) and a tail end step (7) close to the tail end (3), the step surfaces of the head end step (6) and the tail end step (7) are parallel to the axis of the columnar mandrel (1),
the compression ring (8) is in a hollow circular ring shape, the axis of the compression ring coincides with the axis of the columnar core shaft (1), one side of the compression ring close to the columnar core shaft (1) is provided with a matching groove (9) with an L-shaped cross section, the matching groove (9) is matched with the fixing groove (5) mutually, so that the compression ring (8) compresses the other side of the inner ring (12) on the tail end step (7), the two sides of the inner ring (12) are respectively attached to one side of the compression ring (8) and a shorter section of the mounting groove (4),
the pressing plate (10) is a circular flat plate, the plate surface of the pressing plate is perpendicular to the axis of the columnar mandrel (1), the center of the pressing plate is provided with a mounting hole for fixing the pressing plate (10) and the columnar mandrel (1), the outer diameter of the pressing plate (10) is larger than the inner diameter of one side of the columnar mandrel (1) is far away from the pressing ring (8), and the pressing plate (10) is used for fixing the pressing ring (8) on the columnar mandrel (1).
2. The tooling is suppressed to cyclone chamber opposite sex hole of claim 1, characterized in that, all be provided with O type sealing washer between one side of cyclone chamber inner ring (12) and the shorter section of mounting groove (4), between the opposite side of cyclone chamber inner ring (12) and clamping ring (8), between clamping ring (8) and tail end step (7), O type sealing washer between clamping ring (8) and tail end step (7) is used for sealing up the inner of stretching hole (19) in.
3. The cyclone chamber unlike-shape inner hole pressing tool according to claim 2 is characterized in that the outer wall of the pressing ring (8) is flush with the outer wall of the columnar mandrel (1).
4. The tool for pressing the anisotropic inner hole of the cyclone chamber according to claim 3, wherein the axis of the cyclone chamber is coincident with the axis of the columnar mandrel (1) after being fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122271400.4U CN216410909U (en) | 2021-09-18 | 2021-09-18 | Frock is suppressed to whirling room opposite sex hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122271400.4U CN216410909U (en) | 2021-09-18 | 2021-09-18 | Frock is suppressed to whirling room opposite sex hole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216410909U true CN216410909U (en) | 2022-04-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122271400.4U Active CN216410909U (en) | 2021-09-18 | 2021-09-18 | Frock is suppressed to whirling room opposite sex hole |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113884244A (en) * | 2021-09-18 | 2022-01-04 | 西安远航真空钎焊技术有限公司 | Machining method of cyclone chamber |
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2021
- 2021-09-18 CN CN202122271400.4U patent/CN216410909U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113884244A (en) * | 2021-09-18 | 2022-01-04 | 西安远航真空钎焊技术有限公司 | Machining method of cyclone chamber |
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