Aero-engine metal sealing ring temperature measuring device

Abstract

The utility model relates to the technical field of sealing ring temperature measurement, and discloses an aero-engine metal sealing ring temperature measuring device, which comprises a chassis and a metal sealing ring, the top of the chassis is movably connected with a plurality of limiting blocks through an adjusting mechanism outside a positioning rod, and the two sides of each limiting block are movably connected with movable plates through extrusion mechanisms. And a thermocouple is arranged on the outer surface of the limiting block, so that the device can quickly adjust the position of the limiting block through the adjusting mechanism, the device can perform temperature measurement treatment on different positions of metal sealing rings with different inner diameters, and the application range and the temperature measurement accuracy of the device are greatly improved. And the limiting block can be quickly in close contact with the open grooves with different inner diameters through the extrusion mechanism, so that the device can more accurately perform temperature measurement detection on the metal sealing rings with different models, and the application range and the practicability of the device are greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sealing ring temperature measurement, in particular to a temperature measurement device for a metal sealing ring of an aero-engine. Background Art

[0002] The metal sealing ring is a static sealing element. The metal sealing ring uses its compression rebound performance to make its sealing surface fit with the sealing surface of the corresponding workpiece in a line contact manner to form an initial sealing pressure ratio, and the system pressure will further increase the sealing pressure ratio. The metal sealing ring often needs to be temperature measured during processing and production.

[0003] For example, the Chinese patent with patent application number 202321979471.2 is a temperature measuring device for a metal sealing ring of an aircraft engine. The patent evenly distributes three temperature measuring points on the circumference of the test ring and cancels all thermocouples of the old scheme. Since the new scheme can measure accurate temperature values, all the thermocouples that were previously inaccurately measured are cancelled, reducing the number of temperature measuring points and increasing the temperature measuring device to effectively measure the temperature of the metal sealing ring of the aircraft engine.

[0004] However, the above patent is not easy to adjust the position of the temperature measuring point on the limit block during use, resulting in the inability to arbitrarily measure the temperature of metal sealing rings of different radii, which seriously affects the use range and practicality of the temperature measuring device. Utility Model Content

[0005] The utility model aims to provide a temperature measuring device for a metal sealing ring of an aero-engine, which solves the problems raised in the background technology.

[0006] An embodiment of the present application provides a temperature measuring device for a metal sealing ring of an aircraft engine, comprising a chassis and a metal sealing ring, wherein the top of the chassis is located outside a positioning rod and is movably connected to a plurality of limit blocks through an adjustment mechanism, both sides of the limit blocks are movably connected to movable plates through an extrusion mechanism, a thermocouple is arranged on the outer surface of the limit block, a groove and a slot are provided on the outer surface of the metal sealing ring, and a plurality of heating wires are arranged inside the groove.

[0007] By adopting the above technical solution, the device can quickly measure the temperature of different metal sealing rings, thereby greatly improving the practicability of the device.

[0008] Optionally, the adjustment mechanism includes a hand turntable installed at the bottom of the chassis, the interior of the hand turntable is fixedly connected to a rotating shaft, the top of the rotating shaft extends to the interior of the chassis and is fixedly connected to a first bevel gear, the top of the first bevel gear is meshingly connected to multiple groups of second bevel gears, the interior of the second bevel gear is fixedly connected to a screw rod, the outer surface of the screw rod is movably connected to a screw rod nut, the top of the screw rod nut is fixedly connected to a connecting rod, the top of the connecting rod extends to the outside of the chassis through a slide groove and is fixedly connected to a limit block.

[0009] By adopting the above technical solution, the device can quickly adjust the position of the limit block through the adjustment mechanism, so that the device can perform temperature measurement at different positions on metal sealing rings with different inner diameters, thereby greatly improving the application range and temperature measurement accuracy of the device.

[0010] Optionally, the extrusion mechanism includes adjustment grooves opened on both sides of the limit block, the inner wall of the adjustment groove is fixedly connected with an adjustment spring, and the other end of the adjustment spring is fixedly connected to the movable plate.

[0011] By adopting the above technical solution, the device can quickly bring the limit block into close contact with slots of different inner diameters through the extrusion mechanism, so that the device can more accurately measure the temperature of metal sealing rings of different models, thereby greatly improving the scope of application and practicality of the device.

[0012] Optionally, three groups of grooves are provided, and the shape of the grooves is fan-shaped, and the three grooves are distributed in a ring array.

[0013] By adopting the above technical solution, the heating wire is managed in a zoned fan-shaped manner, so that the heating of the device is made more uniform.

[0014] Optionally, a positioning rod is installed at the top center of the chassis, and a center positioning hole is opened at the center of the metal sealing ring.

[0015] By adopting the above technical solution, the metal sealing ring can be quickly positioned and installed by using the positioning rod and the central positioning hole.

[0016] Optionally, the slots are provided in three groups, and the three slots are in the shape of Y-shaped straight slots.

[0017] By adopting the above technical solution and utilizing three groups of slots, the device can detect different positions of the metal sealing ring, thereby greatly improving the detection accuracy of the device.

[0018] Optionally, a plurality of groups of shock-absorbing bases are provided at the bottom of the metal sealing ring.

[0019] By adopting the above technical solution, the shock-absorbing effect of the shock-absorbing base can greatly improve the detection stability of the device.

[0020] Optionally, an anti-skid cover is fixedly connected to the outer surface of the hand turntable, and an anti-skid pattern is formed on the outer surface of the anti-skid cover.

[0021] By adopting the above technical solution, the friction resistance can be increased by using the anti-slip sleeve, thereby avoiding the hand slipping phenomenon.

[0022] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0023] 1. The technical solution of the present application, by providing a hand turntable, a rotating shaft, a first bevel gear, a second bevel gear, a screw, a screw nut, a connecting rod, a slide groove, a limit block and a thermocouple, enables the device to quickly adjust the position of the limit block through an adjustment mechanism, so that the device can perform temperature measurement at different positions on metal sealing rings with different inner diameters, thereby greatly improving the application scope and temperature measurement accuracy of the device.

[0024] 2. The technical solution of the present application sets a limit block, an adjustment groove, an adjustment spring and a movable plate, so that the device can quickly bring the limit block into close contact with slots of different inner diameters through an extrusion mechanism, so that the device can more accurately measure the temperature of metal sealing rings of different types, thereby greatly improving the scope of application and practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0026] Figure 1 This is a top view of the entire temperature measuring device for a metal sealing ring of an aero-engine according to the utility model;

[0027] Figure 2 This is a top view of a chassis of a temperature measuring device for a metal sealing ring of an aero-engine according to the utility model;

[0028] Figure 3 This is a schematic diagram of the internal structure of a base in a temperature measuring device for a metal sealing ring of an aero-engine according to the utility model;

[0029] Figure 4 The utility model is a schematic diagram of the internal structure of a limit block in a temperature measuring device for a metal sealing ring of an aero-engine.

[0030] In the figure: 1. chassis; 2. metal sealing ring; 3. groove; 4. slot; 5. heating wire; 6. limit block; 7. thermocouple; 8. hand turntable; 9. shaft; 10. first bevel gear; 11. second bevel gear; 12. lead screw; 13. lead screw nut; 14. connecting rod; 15. slide groove; 16. adjustment groove; 17. adjustment spring; 18. movable plate; 19. positioning rod; 20. center positioning hole; 21. shock-absorbing base. DETAILED DESCRIPTION

[0031] See also Figure 1-4 The utility model provides a technical solution: a temperature measuring device for a metal sealing ring of an aircraft engine, comprising a chassis 1 and a metal sealing ring 2, the top of the chassis 1 is located outside a positioning rod 19 and is movably connected to a plurality of limit blocks 6 through an adjustment mechanism, both sides of the limit blocks 6 are movably connected to movable plates 18 through an extrusion mechanism, a thermocouple 7 is arranged on the outer surface of the limit block 6, a groove 3 and a slot 4 are provided on the outer surface of the metal sealing ring 2, and a plurality of electric heating wires 5 are arranged inside the groove 3.

[0032] By adopting the above technical solution, the device can quickly measure the temperature of different metal sealing rings 2, thereby greatly improving the practicability of the device.

[0033] In the implementation mode of the present application, Figure 2-3 As shown, the adjustment mechanism includes a hand turntable 8 installed at the bottom of the chassis 1, the interior of the hand turntable 8 is fixedly connected to a rotating shaft 9, the top of the rotating shaft 9 extends to the interior of the chassis 1 and is fixedly connected to a first bevel gear 10, the top of the first bevel gear 10 is meshedly connected to multiple groups of second bevel gears 11, the interior of the second bevel gear 11 is fixedly connected to a screw rod 12, the outer surface of the screw rod 12 is movably connected to a screw nut 13, the top of the screw nut 13 is fixedly connected to a connecting rod 14, the top of the connecting rod 14 extends to the outside of the chassis 1 through a slide groove 15 and is fixedly connected to the limit block 6.

[0034] By adopting the above technical solution, the device can quickly adjust the position of the limit block 6 through the adjustment mechanism, so that the device can perform temperature measurement at different positions on metal sealing rings 2 with different inner diameters, thereby greatly improving the application range and temperature measurement accuracy of the device.

[0035] In the implementation mode of the present application, Figure 4 As shown, the extrusion mechanism includes adjustment grooves 16 opened on both sides of the limit block 6 , the inner wall of the adjustment groove 16 is fixedly connected with an adjustment spring 17 , and the other end of the adjustment spring 17 is fixedly connected to the movable plate 18 .

[0036] By adopting the above technical solution, the device can quickly make the limit block 6 close to the slots 4 with different inner diameters through the extrusion mechanism, so that the device can more accurately measure the temperature of metal sealing rings 2 of different models, thereby greatly improving the scope of application and practicality of the device.

[0037] In the implementation mode of the present application, Figure 1 As shown, three groups of grooves 3 are provided, and the shape of the grooves 3 is fan-shaped, and the three grooves 3 are distributed in a ring array.

[0038] By adopting the above technical solution, the heating wire 5 is heated in a sector-shaped manner, thereby making the heating of the device more uniform.

[0039] In the implementation mode of the present application, Figure 1-2 As shown, a positioning rod 19 is installed at the top center of the chassis 1, and a center positioning hole 20 is opened at the center of the metal sealing ring 2.

[0040] By adopting the above technical solution, the metal sealing ring 2 can be quickly positioned and installed by using the positioning rod 19 and the central positioning hole 20.

[0041] In the implementation mode of the present application, Figure 1 As shown, there are three groups of slots 4, and the three slots 4 are in the shape of Y-shaped straight slots.

[0042] By adopting the above technical solution and utilizing three groups of slots 4, the device can detect different positions of the metal sealing ring 2, thereby greatly improving the detection accuracy of the device.

[0043] In the implementation mode of the present application, Figure 3 As shown, a plurality of groups of shock-absorbing bases 21 are arranged at the bottom of the metal sealing ring 2 .

[0044] By adopting the above technical solution, the shock-absorbing effect of the shock-absorbing base can greatly improve the detection stability of the device.

[0045] In the implementation mode of the present application, Figure 3 As shown, the outer surface of the hand turntable 8 is fixedly connected with an anti-skid cover, and the outer surface of the anti-skid cover is provided with anti-skid patterns.

[0046] By adopting the above technical solution, the anti-slip sleeve can be used to increase the friction resistance, thereby avoiding the hand slipping phenomenon.

[0047] When in use, the operator can install the metal sealing ring 2 to be tested on the chassis 1 through the positioning rod 19, and then rotate the metal sealing ring 2 to drive the slot 4 to rotate to the top of the limit block 6. When the limit block 6 contacts the slot 4, the operator can press the movable plate 18 to retract it into the adjusting slot 16 by compressing the adjusting spring 17, and then press the metal sealing ring 2 so that the limit block 6 can be inserted into the slot 4. After insertion, the limit block 6 can be quickly brought into close contact with the slot 4 by using the rebound force of the adjusting spring 17. Then the operator rotates the hand wheel again. The disk 8 can drive the first bevel gear 10 to rotate through the rotating shaft 9. When the first bevel gear 10 rotates, it will drive multiple second bevel gears 11 to rotate by meshing. When the second bevel gear 11 rotates, it will drive the screw rod 12 to rotate. When the screw rod 12 rotates, the screw nut 13 will drive the limit block 6 to slide along the slot 4 under the limiting action of the connecting rod 14 and the slide groove 15, so that the limit block 6 can drive the thermocouple 7 to measure the temperature of different positions of the metal sealing ring 2, thereby greatly improving the application range and temperature measurement accuracy of the device.

Claims

1. A temperature measuring device for a metal sealing ring of an aircraft engine, comprising a chassis (1) and a metal sealing ring (2), characterized in that: The top of the chassis (1) is located outside the positioning rod (19) and is movably connected to a plurality of limit blocks (6) through an adjustment mechanism. Both sides of the limit blocks (6) are movably connected to movable plates (18) through an extrusion mechanism. A thermocouple (7) is arranged on the outer surface of the limit blocks (6). A groove (3) and a slot (4) are provided on the outer surface of the metal sealing ring (2). A plurality of heating wires (5) are arranged inside the groove (3).

2. The temperature measuring device for metal sealing ring of an aircraft engine according to claim 1, characterized in that: The adjustment mechanism comprises a hand turntable (8) mounted at the bottom of the chassis (1); the hand turntable (8) is fixedly connected to a rotating shaft (9) inside; the top of the rotating shaft (9) extends to the inside of the chassis (1) and is fixedly connected to a first bevel gear (10); the top of the first bevel gear (10) is meshingly connected to a plurality of groups of second bevel gears (11); the inside of the second bevel gear (11) is fixedly connected to a screw rod (12); the outer surface of the screw rod (12) is movably connected to a screw rod nut (13); the top of the screw rod nut (13) is fixedly connected to a connecting rod (14); the top of the connecting rod (14) extends to the outside of the chassis (1) through a slide groove (15) and is fixedly connected to a limit block (6).

3. The temperature measuring device for metal sealing ring of an aircraft engine according to claim 1, characterized in that: The extrusion mechanism comprises adjustment grooves (16) provided on both sides of the limit block (6); an adjustment spring (17) is fixedly connected to the inner wall of the adjustment groove (16); and the other end of the adjustment spring (17) is fixedly connected to the movable plate (18).

4. The temperature measuring device for metal sealing ring of an aircraft engine according to claim 1, characterized in that: The grooves (3) are arranged in three groups, and the shape of the grooves (3) is fan-shaped, and the three grooves (3) are distributed in a ring array.

5. The temperature measuring device for metal sealing ring of an aircraft engine according to claim 1, characterized in that: A positioning rod (19) is installed at the center of the top of the chassis (1), and a center positioning hole (20) is opened at the center of the metal sealing ring (2).

6. The temperature measuring device for metal sealing ring of an aircraft engine according to claim 1, characterized in that: The slots (4) are provided in three groups, and the three slots (4) are in the shape of Y-shaped straight slots.

7. The temperature measuring device for metal sealing ring of an aircraft engine according to claim 1, characterized in that: A plurality of groups of shock-absorbing bases (21) are arranged at the bottom of the metal sealing ring (2).

8. The temperature measuring device for metal sealing ring of an aircraft engine according to claim 2, characterized in that: The outer surface of the hand turntable (8) is fixedly connected with an anti-skid sleeve, and the outer surface of the anti-skid sleeve is provided with anti-skid patterns.

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