Protective device of gas turbine starter test bed

Abstract

The utility model relates to a protection device of a gas turbine starter test bed, which comprises a mounting table and a placing plate for placing a gas turbine starter, a protection assembly for buffering is arranged between the mounting table and the placing plate, and the protection assembly comprises a plurality of damping rods fixedly mounted at four corners of the top of the mounting table. The placing plate is fixedly mounted at the top end of the damping rod, a mounting cover is fixedly mounted at the top of the mounting table, a pressing rod extending into the mounting cover is fixedly mounted at the bottom of the placing plate, a pressing plate is fixedly mounted at the bottom of the pressing rod, and a buffering air bag is mounted on the inner wall of the mounting cover and located below the pressing plate; and a mounting groove is formed in the mounting table, and a first magnetic block is arranged on the inner wall of the mounting groove. According to the protection device of the gas turbine starter test bed, the gas turbine starter can be more stable in the test process, and meanwhile the service life of the test bed can be prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of gas turbine starter test, in particular to a protective device for a gas turbine starter test bench. Background Art

[0002] A gas turbine is an internal combustion power machine that uses a continuously flowing gas as a working fluid to drive the impeller to rotate at high speed, converting the energy of the fuel into useful work. It is a rotating impeller heat engine.

[0003] Most of the existing gas turbine starter test bench equipment fixes the gas turbine starter on the test bench by bolts when in use. When the gas turbine starter is started, it will generate certain vibrations, which will easily cause a certain impact force on the test bench, which will easily cause wear or cracking of the test bench surface over time.

[0004] In view of this, Chinese patent CN214697963U discloses a shock absorbing device for a turbine starter test bench. The shock absorbing device for the turbine starter test bench can convert the kinetic energy of the test bench into elastic potential energy through a buffer mechanism, and then consume the elastic potential energy in the form of internal energy friction, thereby avoiding collision of the test bench and effectively extending the protection of the test bench.

[0005] By comparing the above existing documents, the inventor believes that there are still the following defects:

[0006] Although the comparative document can protect the test bench through the buffer mechanism, in actual use, the elastic potential energy can easily cause the test bench to move up and down continuously, and it still takes some time for it to be completely stable. The instability in this process can easily affect the test of the gas turbine starter. Therefore, we propose a protective device for the gas turbine starter test bench to solve the above problems. Utility Model Content

[0007] In view of the shortcomings of the prior art, the utility model provides a protective device for a gas turbine starter test bench, which has the advantages of good protective effect, etc., and solves the problem that the prior art still needs a period of time to achieve a buffering effect through elastic potential energy and that the instability in this process can easily affect the test of the gas turbine starter.

[0008] In order to achieve the purpose of the above-mentioned good protection effect, the utility model provides the following technical solutions: a protection device for a gas turbine starter test bench, comprising a mounting platform and a placement plate for placing the gas turbine starter, a protection component for buffering is arranged between the mounting platform and the placement plate, the protection component comprises a plurality of damping rods fixedly installed at the four corners of the top of the mounting platform, the placement plate is fixedly installed at the top of the damping rod, a mounting cover is fixedly installed on the top of the mounting platform, a pressure rod extending to the inside of the mounting cover is fixedly installed on the bottom of the placement plate, a pressure plate is fixedly installed on the bottom of the pressure rod, a buffer airbag is installed on the inner wall of the mounting cover and below the pressure plate, a mounting groove is opened inside the mounting platform, a first magnetic block is arranged on the inner wall of the mounting groove, a second magnetic block is arranged on the inner wall of the mounting groove and above the first magnetic block, a reset airbag is installed between the first magnetic block and the second magnetic block, and an air pipe is connected between the buffer airbag and the reset airbag.

[0009] Furthermore, a first isolation cover is fixedly installed on the inner wall of the installation groove, the first magnetic block is fixedly installed on the inner wall of the first isolation cover, a second isolation cover is slidably installed on the inner wall of the installation groove and located above the first isolation cover, the second magnetic block is fixedly installed on the inner wall of the second isolation cover, and the first magnetic block and the second magnetic block are magnetically attracted to each other.

[0010] Furthermore, positioning grooves are provided on the inner walls on both sides of the installation groove, and two positioning blocks extending into the corresponding positioning grooves are fixed on the surface of the second isolation cover. A limiting assembly for limiting the gas turbine starter is provided on the top of the placement plate.

[0011] Furthermore, the limiting assembly includes a movable block slidably mounted on the top of the placing plate, a connecting rod is rotatably mounted on the top of the placing plate, a pushing rod is hinged on the other end of the connecting rod, and the other end of the pushing rod is rotatably connected to the movable block, a fixed block is fixedly mounted on the top of the placing plate, a connecting block is fixedly mounted on the opposite sides of the fixed block and the movable block by bolts, a limiting plate is fixedly mounted on the other side of the connecting block, and a driving assembly for driving the limiting plate to move is also provided on the top of the placing plate.

[0012] Furthermore, the driving assembly includes a first adjusting rod rotatably mounted on the top of the placing plate, a first threaded block is fixedly mounted on the top of the first adjusting rod, a rotating cylinder is threadedly mounted on the external thread of the first threaded block, a second threaded block is threadedly mounted on the inner wall of the rotating cylinder and located above the first threaded block, a second adjusting rod extending to the outside of the rotating cylinder is fixedly mounted on the top of the second threaded block, the other end of the second adjusting rod is hingedly connected to a driving rod, and the other end of the driving rod is rotatably connected to a connecting rod and a pushing rod.

[0013] Furthermore, the threads on the upper and lower sides of the inner wall of the rotating drum are in opposite directions, and the first thread block and the second thread block are respectively threadedly mounted on the sides of the inner wall of the rotating drum with opposite thread directions.

[0014] Furthermore, a stabilizing groove is provided on the top of the placement plate, and a stabilizing block extending into the stabilizing groove is fixedly installed on the bottom of the movable block on the left side.

[0015] Compared with the prior art, the utility model provides a protective device for a gas turbine starter test bench, which has the following beneficial effects:

[0016] 1. The protective device of the gas turbine starter test bench has a protective component that is set up. When the gas turbine starter vibrates during the test, the four damping rods will be adjusted by extension and retraction first. At the same time, the gas in the buffer airbag will be squeezed into the interior of the reset airbag during the up and down movement of the placement plate. When the reset airbag is inflated, the second magnetic block will move upward. Due to the suction force between the first magnetic block and the second magnetic block, the reset airbag will be squeezed, and the gas inside it will be squeezed back into the interior of the buffer airbag, thereby completing the reset of the placement plate. In this way, through the mutual cooperation of the damping rod, the buffer airbag, the reset airbag, the first magnetic block and the second magnetic block, the test process of the gas turbine starter can be made more stable, and the service life of the test bench can also be improved.

[0017] 2. The protective device of the gas turbine starter test bench facilitates the limiting of the gas turbine starter through the setting of the limiting assembly, and the operation is simple and convenient, which greatly improves the efficiency of the gas turbine starter test. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is the front view of the utility model;

[0019] Figure 2 This is a front sectional view of the utility model;

[0020] Figure 3 This is a cross-sectional view of the position limiting protection component of the utility model;

[0021] Figure 4 This is a schematic diagram of the limit assembly of the utility model;

[0022] Figure 5 This is a schematic diagram of the drive assembly of the utility model.

[0023] In the figure: 1. mounting table; 2. damping rod; 3. placement plate; 4. mounting cover; 5. pressure rod; 6. pressure plate; 7. cushioning airbag; 8. second magnetic block; 9. first magnetic block; 10. reset airbag; 11. air pipe; 12. positioning groove; 13. positioning block; 14. second insulating cover; 15. first insulating cover; 16. movable block; 17. fixed block; 18. connecting block; 19. limiting plate; 20. first adjusting rod; 21. first threaded block; 22. rotating drum; 23. second threaded block; 24. second adjusting rod; 25. driving rod; 26. connecting rod; 27. pushing rod; 28. stabilizing groove; 29. ​​stabilizing block; 30. mounting groove. DETAILED DESCRIPTION

[0024] In order to facilitate understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. Embodiments of the present application are provided in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0026] See also Figure 1 and Figure 2 , a protective device for a gas turbine starter test bench comprises a mounting platform 1 and a placement plate 3 for placing the gas turbine starter.

[0027] See also Figure 3 A protective component for buffering is arranged between the mounting platform 1 and the placement plate 3, and the protective component includes a plurality of damping rods 2 fixedly mounted on the four corners of the top of the mounting platform 1, the placement plate 3 is fixedly mounted on the top of the damping rod 2, a mounting cover 4 is fixedly mounted on the top of the mounting platform 1, a pressure rod 5 extending to the inside of the mounting cover 4 is fixedly mounted on the bottom of the placement plate 3, a pressure plate 6 is fixedly mounted on the bottom of the pressure rod 5, a buffer airbag 7 is installed on the inner wall of the mounting cover 4 and below the pressure plate 6, a mounting groove 30 is opened inside the mounting platform 1, a first magnetic block 9 is arranged on the inner wall of the mounting groove 30, a second magnetic block 8 is arranged on the inner wall of the mounting groove 30 and above the first magnetic block 9, a reset airbag 10 is installed between the first magnetic block 9 and the second magnetic block 8, and an air pipe 11 is connected between the buffer airbag 7 and the reset airbag 10.

[0028] Among them, by setting up a protective component, utilizing the mutual cooperation of the damping rod 2, the buffer airbag 7, the reset airbag 10, the first magnetic block 9 and the second magnetic block 8, the test process of the gas turbine starter can be made more stable, and the service life of the test bench can also be improved.

[0029] In this embodiment, a first isolation cover 15 is fixedly installed on the inner wall of the mounting groove 30, a first magnetic block 9 is fixedly installed on the inner wall of the first isolation cover 15, a second isolation cover 14 is slidably installed on the inner wall of the mounting groove 30 and located above the first isolation cover 15, a second magnetic block 8 is fixedly installed on the inner wall of the second isolation cover 14, and the first magnetic block 9 and the second magnetic block 8 are magnetically attracted to each other.

[0030] The first isolation cover 15 and the second isolation cover 14 are used to isolate the magnetic force around the corresponding magnetic block, so that the magnetic force is not easy to affect the surrounding parts or components of the equipment.

[0031] In this embodiment, positioning grooves 12 are provided on the inner walls on both sides of the installation groove 30, and two positioning blocks 13 extending into the corresponding positioning grooves 12 are fixed on the surface of the second isolation cover 14, and a limiting component for limiting the gas turbine starter is provided on the top of the placement plate 3.

[0032] The positioning groove 12 and the positioning block 13 are provided to facilitate the up and down movement of the second magnetic block 8 , and can also position the second magnetic block 8 to avoid affecting the inflation of the reset airbag 10 .

[0033] See also Figure 4 In this embodiment, the limiting assembly includes a movable block 16 slidably installed on the top of the placing plate 3, a connecting rod 26 is rotatably installed on the top of the placing plate 3, and a pushing rod 27 is hinged at the other end of the connecting rod 26. The other end of the pushing rod 27 is rotatably connected to the movable block 16. A fixed block 17 is fixedly installed on the top of the placing plate 3, and a connecting block 18 is fixedly installed on the opposite side of the fixed block 17 and the movable block 16 by bolts. A limiting plate 19 is fixedly installed on the other side of the connecting block 18, and a driving assembly for driving the limiting plate 19 to move is also provided on the top of the placing plate 3.

[0034] It is worth noting that the shape of the limit plate 19 in the present application is preferably arc-shaped, but in order to limit the gas turbine starters of different shapes according to actual needs, the connecting block 18 in the present application is fixed to the movable block 16 by bolts, thereby facilitating the replacement of the shape of the limit plate 19 according to the shape of the gas turbine starter.

[0035] In this embodiment, the driving assembly includes a first adjusting rod 20 rotatably mounted on the top of the placing plate 3, a first threaded block 21 is fixedly mounted on the top of the first adjusting rod 20, a rotating cylinder 22 is threadedly mounted on the external thread of the first threaded block 21, a second threaded block 23 is threadedly mounted on the inner wall of the rotating cylinder 22 and located above the first threaded block 21, a second adjusting rod 24 extending to the outside of the rotating cylinder 22 is fixedly mounted on the top of the second threaded block 23, the other end of the second adjusting rod 24 is hingedly connected to a driving rod 25, and the other end of the driving rod 25 is rotatably connected to a connecting rod 26 and a pushing rod 27.

[0036] Among them, rotating the rotating drum 22 causes the first threaded block 21 and the second threaded block 23 to move in opposite directions, so that the driving rod 25 can be deflected and push the pushing rod 27 to displace the movable block 16, thereby allowing the two limit plates 19 to limit the gas turbine starter.

[0037] It is worth noting that the threads on the upper and lower sides of the inner wall of the rotating drum 22 are in opposite directions, and the first thread block 21 and the second thread block 23 are respectively threadedly installed on the opposite sides of the inner wall of the rotating drum 22 in the thread direction.

[0038] In this embodiment, a stabilizing groove 28 is further provided at the top of the placement plate 3 , and a stabilizing block 29 extending into the stabilizing groove 28 is fixedly installed at the bottom of the left movable block 16 .

[0039] The stabilizing groove 28 and the stabilizing block 29 are provided to make the movable block 16 more stable when moving.

[0040] When the present embodiment is in use, when the gas turbine starter needs to be limited, it is placed on the placement plate 3 so that it is located between the two limit plates 19, and the rotating cylinder 22 is rotated to make the first threaded block 21 and the second threaded block 23 move in opposite directions, so that the driving rod 25 can be deflected and the pushing rod 27 can be pushed to make the movable block 16 move, so that the two limit plates 19 can limit the gas turbine starter. When the gas turbine starter vibrates during the test, the four damping rods 2 will be adjusted by extension and retraction first, and at the same time, in the process of the placement plate 3 moving up and down, the damping rods 2 will be adjusted by extension and retraction first, and at the same time, in the process of the placement plate 3 moving up and down, the first threaded block 21 and the second threaded block 23 move in opposite directions. The gas in the buffer airbag 7 will be squeezed into the interior of the reset airbag 10. When the reset airbag 10 is inflated, the second magnetic block 8 will move upward. Due to the suction force between the first magnetic block 9 and the second magnetic block 8, the reset airbag 10 will be squeezed, and the gas inside it will be squeezed back into the interior of the buffer airbag 7, thereby completing the reset of the placement plate 3. In this way, through the mutual cooperation of the damping rod 2, the buffer airbag 7, the reset airbag 10, the first magnetic block 9 and the second magnetic block 8, the test process of the gas turbine starter can be made more stable, and the service life of the test bench can also be improved.

[0041] The electrical components appearing in the article are all electrically connected to the main controller and the power supply. The main controller can be a conventional known device for control such as a computer, and the existing public power connection technology is not described in detail in the article.

[0042] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0043] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A protective device for a gas turbine starter test bench, comprising a mounting platform (1) and a placement plate (3) for placing the gas turbine starter, characterized in that: A protective component for buffering is provided between the mounting platform (1) and the placement plate (3); The protection component comprises a plurality of damping rods (2) fixedly mounted at the four corners of the top of the mounting platform (1); the placement plate (3) is fixedly mounted on the top of the damping rods (2); a mounting cover (4) is fixedly mounted on the top of the mounting platform (1); a pressure rod (5) extending into the interior of the mounting cover (4) is fixedly mounted on the bottom of the placement plate (3); a pressure plate (6) is fixedly mounted on the bottom of the pressure rod (5); a buffer air bag (7) is mounted on the inner wall of the mounting cover (4) and below the pressure plate (6); a mounting groove (30) is provided inside the mounting platform (1); a first magnetic block (9) is arranged on the inner wall of the mounting groove (30); a second magnetic block (8) is arranged on the inner wall of the mounting groove (30) and above the first magnetic block (9); a reset air bag (10) is mounted between the first magnetic block (9) and the second magnetic block (8); an air pipe (11) is connected between the buffer air bag (7) and the reset air bag (10).

2. The protective device for a gas turbine starter test bench according to claim 1, characterized in that: A first insulating cover (15) is fixedly mounted on the inner wall of the mounting groove (30), the first magnetic block (9) is fixedly mounted on the inner wall of the first insulating cover (15), a second insulating cover (14) is slidably mounted on the inner wall of the mounting groove (30) and located above the first insulating cover (15), the second magnetic block (8) is fixedly mounted on the inner wall of the second insulating cover (14), and the first magnetic block (9) and the second magnetic block (8) are magnetically attracted to each other.

3. The protective device for a gas turbine starter test bench according to claim 2, characterized in that: The inner walls on both sides of the installation groove (30) are provided with positioning grooves (12); the surface of the second insulating cover (14) is fixed with two positioning blocks (13) which extend into the corresponding positioning grooves (12) respectively; and the top of the placement plate (3) is provided with a limiting assembly for limiting the gas turbine starter.

4. The protective device for a gas turbine starter test bench according to claim 3, characterized in that: The limiting assembly comprises a movable block (16) slidably mounted on the top of the placement plate (3); a connecting rod (26) is rotatably mounted on the top of the placement plate (3); the other end of the connecting rod (26) is hingedly connected to a pushing rod (27); the other end of the pushing rod (27) is rotatably connected to the movable block (16); a fixed block (17) is fixedly mounted on the top of the placement plate (3); a connecting block (18) is fixedly mounted on the opposite side of the fixed block (17) and the movable block (16) by bolts; a limiting plate (19) is fixedly mounted on the other side of the connecting block (18); and a driving assembly for driving the limiting plate (19) to move is also provided on the top of the placement plate (3).

5. The protective device for a gas turbine starter test bench according to claim 4, characterized in that: The driving assembly comprises a first adjusting rod (20) rotatably mounted on the top of the placing plate (3); a first threaded block (21) is fixedly mounted on the top of the first adjusting rod (20); a rotating cylinder (22) is threadedly mounted on the outer surface of the first threaded block (21); a second threaded block (23) is threadedly mounted on the inner wall of the rotating cylinder (22) and located above the first threaded block (21); a second adjusting rod (24) extending to the outside of the rotating cylinder (22) is fixedly mounted on the top of the second threaded block (23); a driving rod (25) is hingedly mounted on the other end of the second adjusting rod (24); and the other end of the driving rod (25) is rotatably connected to a connecting rod (26) and a pushing rod (27).

6. The protective device for a gas turbine starter test bench according to claim 5, characterized in that: The threads on the upper and lower sides of the inner wall of the rotating drum (22) are in opposite directions, and the first thread block (21) and the second thread block (23) are respectively threadedly mounted on the sides of the inner wall of the rotating drum (22) in opposite directions.

7. The protective device for a gas turbine starter test bench according to claim 4, characterized in that: The top of the placement plate (3) is also provided with a stabilizing groove (28), and the bottom of the left movable block (16) is fixedly provided with a stabilizing block (29) extending into the inside of the stabilizing groove (28).

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