A test support

Abstract

The present invention relates to the technical field of aero-engine rotor dynamics testing, and specifically to a test support, the test support comprising: a base; a support assembly, arranged above the base, the support assembly comprising a support seat and a bearing arranged in the support seat; an adjustment assembly, connected between the base and the support seat, and the adjustment assembly is a retractable structure to drive the base and the support seat to move closer to or farther from each other. The cantilever section is placed in the bearing to achieve support, and the cantilever section can rotate circumferentially relative to the bearing during the test, thereby improving the reliability of the test data and avoiding damage to the equipment. The adjustment assembly is retracted to drive the base and the support seat to move closer to or farther from each other, thereby achieving adjustable center height of the test support, so as to facilitate the centering installation of the test support and the cantilever section, and also meet the test requirements of equipment of different heights, while also reducing the machining accuracy requirements for the entire test support and reducing the machining difficulty.

Description

Technical Field

[0001] The invention relates to the technical field of aero-engine rotor dynamics testing, and in particular to a testing support. Background Art

[0002] In the test installation state, the cantilever section of the aircraft engine's rotor equipment (structures such as integrated equipment stators and rotor parts) is very long, reaching 3 / 4 of the total length of the rotor equipment. Test and modal analysis results show that when the cantilever section is not supported, the rotor equipment has a resonant frequency near its rated operating speed during the test, which seriously affects the test safety. Therefore, by adding a test support to the cantilever section to support it, resonance can be effectively avoided and the test safety can be ensured.

[0003] The existing test support adopts a split-half structure. The upper cover and the lower seat are positioned by cylindrical pins and fixed by bolts. The cantilever section is inserted into the circular hole between the upper cover and the lower seat to achieve positioning support. During the test, the entire test support is connected to the ground rail of the tester by 4 anchor bolts.

[0004] The existing test support cannot adjust the height, which makes it difficult to install it in coordination with the cantilever section. It cannot rotate in the circumferential direction, which leads to large test errors. Summary of the invention

[0005] Therefore, the technical problem to be solved by the present invention is to overcome the defects of the test support in the prior art that is inconvenient to install and has large test errors, thereby providing a test support that is easy to install and can reduce test errors.

[0006] In order to solve the above problems, the present invention provides a test support, including: a base; a supporting assembly, arranged above the base, the supporting assembly including a supporting seat and a bearing arranged in the supporting seat; an adjusting assembly, connected between the base and the supporting seat, and the adjusting assembly is a retractable structure to drive the base and the supporting seat to move closer to or away from each other.

[0007] Optionally, the adjustment assembly includes: an adjustment sleeve; an adjustment rod connected to both the base and the support seat, the adjustment sleeve is sleeved on the outer circumference of the adjustment rod, and the adjustment rod can be telescopically moved relative to the adjustment sleeve and limited by the adjustment sleeve.

[0008] Optionally, the adjustment rod includes: a first moving rod connected to the base; a second moving rod connected to the support seat, the adjustment sleeve is sleeved on the outer periphery of the first moving rod and the second moving rod, and the adjustment sleeve can drive the first moving rod and the second moving rod to move closer to or away from each other.

[0009] Optionally, a first external thread is provided on the outer periphery of the first moving rod, a second external thread with a rotation direction opposite to that of the first external thread is provided on the outer periphery of the second moving rod, and a first thread segment cooperating with the first external thread and a second thread segment cooperating with the second external thread are provided on the inner wall of the adjusting sleeve.

[0010] Optionally, the adjustment assembly also includes: a first locking nut, which is threadedly connected to the first moving rod and the first locking nut is located between the base and the adjustment sleeve; and / or a second locking nut, which is threadedly connected to the second moving rod and the second locking nut is located between the support seat and the adjustment sleeve.

[0011] Optionally, two adjusting components are provided and are symmetrically arranged on opposite sides of the supporting seat, and the two adjusting components are in an eight-shaped shape.

[0012] Optionally, a slot is provided on the support seat, and the outer ring of the bearing is abutted and installed in the slot.

[0013] Optionally, the support assembly further includes: a crimping portion connected to the support seat, the crimping portion abutting against a side of the outer ring of the bearing away from the slot.

[0014] Optionally, the support assembly further includes a bushing, and the bushing is interference fit with the inner wall of the bearing inner ring.

[0015] Optionally, the test support further comprises a base connected to the base, one of the base and the base is provided with a positioning protrusion, and the other is provided with a positioning groove, and the positioning protrusion is inserted into the positioning groove.

[0016] Optionally, the test support further comprises a lifting lug, wherein the lifting lug is symmetrically arranged on both sides of the base relative to the support seat, and / or the lifting lug is arranged on the support seat.

[0017] Optionally, the test support further includes a guide portion, which is connected to the bottom of the base to guide the movement of the base.

[0018] Optionally, a mounting base is provided on the support seat, and the mounting base is parallel to the horizontal plane.

[0019] Optionally, the top and sides of the support seat are provided with mounting holes suitable for mounting a vibration acceleration sensor.

[0020] The present invention has the following advantages:

[0021] 1. The test support of the present invention includes a base, a support assembly and an adjustment assembly. The support assembly is arranged above the base and includes a support seat and a bearing arranged in the support seat. The adjustment assembly is connected between the base and the support seat. The adjustment assembly is a retractable structure to drive the base and the support seat to move closer or farther from each other. During the rotor dynamics test, the cantilever section is placed in the bearing for support. At the same time, the cantilever section can rotate relative to the bearing in the test, which not only ensures the reliability of the test data but also avoids damage to the equipment. The base and the support seat can be driven closer or farther from each other by the telescopic adjustment assembly, so as to adjust the height of the support seat and adjust the center height of the test support, so as to facilitate the centering installation of the test support and the cantilever section, and also meet the test requirements of equipment of different heights. At the same time, the adjustable center height also reduces the processing accuracy requirements for the entire test support, thereby reducing the processing difficulty and improving the processing efficiency.

[0022] 2. The test support of the present invention has an adjustment component including an adjustment sleeve and an adjustment rod. The adjustment rod is connected to both the base and the support seat. The adjustment sleeve is sleeved on the outer periphery of the adjustment rod and the adjustment rod can be telescopically moved relative to the adjustment sleeve and limited by the adjustment sleeve. When the adjustment rod is extended relative to the adjustment sleeve, the base and the support seat can be driven to move away from each other to increase the center height of the test support. When the adjustment rod is retracted relative to the adjustment sleeve, the base and the support seat can be driven to move closer to each other to reduce the center height of the test support. After the adjustment is completed, the adjustment sleeve is used to limit and fix the adjustment rod to ensure the connection stability between the base and the support seat. The adjustment is simple and the reliability is good.

[0023] 3. The test support of the present invention, the adjustment rod includes a first moving rod and a second moving rod, the first moving rod is connected to the base, the second moving rod is connected to the support seat, the adjustment sleeve is sleeved on the outer periphery of the first moving rod and the second moving rod, and the adjustment sleeve can drive the first moving rod and the second moving rod to move closer to or away from each other. By driving the first moving rod and the second moving rod to move closer to or away from each other by the adjustment sleeve, the center height of the test support can be adjusted, which is convenient and simple.

[0024] 4. The test support of the present invention has a first external thread on the outer periphery of the first moving rod, a second external thread with a rotation direction opposite to that of the first external thread on the outer periphery of the second moving rod, and a first thread segment cooperating with the first external thread and a second thread segment cooperating with the second external thread on the inner wall of the adjusting sleeve. When adjusting, the first moving rod and the second moving rod can be driven to move closer or farther along the axial direction of the adjusting sleeve by rotating the adjusting sleeve through the threaded connection, so as to adjust the center height of the test support. The adjustment method is simple, and the threaded connection makes the entire adjustment high in precision and controllable.

[0025] 5. The test support of the present invention, the adjustment assembly also includes a first locking nut and / or a second locking nut, the first locking nut is threadedly connected to the first moving rod and the first locking nut is located between the base and the adjustment sleeve, the second locking nut is threadedly connected to the second moving rod and the second locking nut is located between the support seat and the adjustment sleeve. The first locking nut and the second locking nut can limit the two ends of the adjustment sleeve, and enhance the stability and reliability of the threaded connection between the adjustment sleeve and the first moving rod and the second moving rod.

[0026] 6. The test support of the present invention, the support assembly also includes a crimping part, the crimping part is connected to the support seat, and the crimping part abuts against the side of the outer ring of the bearing away from the slot. The crimping part can be used to abut and install the bearing in the slot to avoid axial displacement of the bearing and ensure installation stability.

[0027] 7. The test support of the present invention also includes a base connected to the pedestal, one of the base and the pedestal is provided with a positioning protrusion, and the other is provided with a positioning groove, the positioning protrusion is inserted into the positioning groove, so as to realize the installation positioning between the base and the pedestal and realize quick installation, and at the same time, the cooperation of the positioning groove and the positioning protrusion also limits the relative movement of the base and the pedestal, and improves the connection reliability between the two.

[0028] 8. The test support of the present invention has a mounting base on the support seat, and the mounting base is parallel to the horizontal plane. When installing the test support, a level meter can be placed on the mounting base to detect the horizontality of the test support installation. When it is detected that the mounting base is parallel to the horizontal plane, it means that the test support is installed horizontally. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0030] Figure 1 A schematic diagram of the front view structure of the test support of the present invention is shown;

[0031] Figure 2 A schematic diagram of the top view of the test support of the present invention is shown;

[0032] Figure 3 A schematic side view of a test support of the present invention is shown;

[0033] Figure 4 The overall cross-sectional structure schematic diagram of the test support of the present invention is shown.

[0034] Description of reference numerals:

[0035] 1. Base; 11. Positioning protrusion; 2. Support assembly; 21. Support seat; 211. Mounting base surface; 212. Mounting hole; 213. Slot; 22. Bearing; 23. Crimping portion; 231. Fastener; 24. Bushing; 3. Adjustment assembly; 31. Adjustment sleeve; 32. First moving rod; 321. First connecting hole; 33. Second moving rod; 331. Second connecting hole; 34. First locking nut; 35. Second locking nut; 36. First connecting member; 37. Second connecting member; 4. Base; 41. Positioning groove; 5. Lifting ear; 6. Guide portion. DETAILED DESCRIPTION

[0036] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0038] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0040] like Figures 1 to 4As shown, this embodiment discloses a test support, including a base 1, a supporting assembly 2 and an adjusting assembly 3, wherein the supporting assembly 2 is arranged above the base 1, the supporting assembly 2 includes a supporting seat 21 and a bearing 22 arranged in the supporting seat 21, the adjusting assembly 3 is connected between the base 1 and the supporting seat 21, and the adjusting assembly 3 is a retractable structure to drive the base 1 and the supporting seat 21 to move closer to or away from each other.

[0041] During the rotor dynamics test, the cantilever section is placed in the bearing 22 for support. At the same time, the cantilever section can rotate circumferentially relative to the bearing 22 during the test, which not only ensures the reliability of the test data but also avoids damage to the equipment. The base 1 and the support seat 21 can be driven closer or farther away from each other by adjusting the extension and retraction of the adjustment component 3, thereby adjusting the height of the support seat 21 and adjusting the center height of the test support, so as to facilitate the centering installation of the test support and the cantilever section, and also meet the test requirements of equipment of different heights. At the same time, the adjustable center height also reduces the processing accuracy requirements for the entire test support, thereby reducing the processing difficulty and improving the processing efficiency.

[0042] The structure of the test support is described in detail below in conjunction with the accompanying drawings in the specification.

[0043] The base 1 provides stable support for the entire test support. In this embodiment, two bases 1 are provided and are symmetrically arranged on opposite sides of the support assembly.

[0044] The support seat 21 is provided with an inner hole, and the inner wall of the inner hole is provided with a slot 213. The bearing 22 is embedded in the inner hole and abutted against the slot 213 to ensure the connection stability between the bearing 22 and the support seat. At the same time, the outer ring of the bearing 22 is limited by the slot 213 to prevent it from rotating.

[0045] Furthermore, the support seat 21 is provided with a mounting base surface 211, and the mounting base surface 211 is parallel to the horizontal plane. When installing the test support, a level meter can be placed on the mounting base surface 211 to detect the horizontality of the test support installation. When it is detected that the mounting base surface 211 is parallel to the horizontal plane, it means that the test support is installed horizontally. Specifically, the mounting base surface 211 is a finely ground surface, which is provided on the top of the support seat 21.

[0046] like Figure 1 and Figure 2 As shown, the top and side of the support seat 21 are provided with mounting holes 212, which are suitable for mounting a vibration acceleration sensor. During the test, the vibration acceleration sensor is installed in the mounting hole 212 to detect the vibration acceleration of the test support, so as to observe the vibration of the test support in real time. Specifically, the mounting hole 212 is an M5 threaded hole, so that the vibration acceleration sensor can be threadedly connected, which is convenient for disassembly and assembly and has high efficiency.

[0047] like Figure 1and Figure 4 As shown, the bearing 22 is a ball bearing, which includes an outer ring, an inner ring and balls arranged between the outer ring and the inner ring. When installed, the outer ring of the bearing 22 is installed in abutment with the groove 213, and the inner ring of the bearing 22 is located in the inner hole of the support seat 21 so as to rotate freely in the circumferential direction.

[0048] Furthermore, in order to prevent the bearing 22 from circumferentially rotating after installation, a limiting protrusion (not shown in the figure) is provided on the outer ring of the bearing 22 and one of the support seat 21, and a limiting groove is provided on the other one, and the limiting protrusion is matched and inserted in the limiting groove, thereby realizing circumferential limitation of the bearing 22 and improving the stability and reliability of the test process.

[0049] Optionally, the support assembly 2 also includes a crimping portion 23, which is connected to the support seat 21 and abuts against the side of the outer ring of the bearing 22 away from the slot 213 to limit the axial direction of the bearing 22 to prevent it from slipping out of the slot 213, thereby ensuring the reliability of the structural installation.

[0050] In this embodiment, the crimping portion 23 is an annular pressure plate, and an annular groove is provided on the support seat 21. The annular pressure plate is installed in the annular groove and abuts against the outer ring of the bearing 22 to limit the bearing 22 to be installed in the slot 213, which has good reliability.

[0051] Furthermore, the crimping portion 23 is connected to the support seat 21 by a fastener 231. Specifically, a plurality of fasteners 231 are provided and are evenly spaced along the circumference of the crimping portion 23, so that the connection between the crimping portion 23 and the support seat 21 is stable and the force is evenly applied. Exemplarily, the fastener 231 can be a screw, a bolt, or a pin.

[0052] Optionally, the support assembly 2 further comprises a bushing, which is interference fit with the inner wall of the inner ring of the bearing 22. The bushing and the journal of the cantilever section are installed by centering the cylindrical surface, and the bushing can achieve soft contact between the cantilever section and the bearing 22 to avoid wear caused by hard contact.

[0053] like Figures 1 to 4 As shown, in this embodiment, the adjustment assembly 3 includes an adjustment sleeve 31 and an adjustment rod, wherein the adjustment rod is connected to both the base 1 and the support seat 21, the adjustment sleeve 31 is sleeved on the outer periphery of the adjustment rod, and the adjustment rod can be telescopically moved relative to the adjustment sleeve 31 and limited by the adjustment sleeve 31.

[0054] When the adjustment rod is extended relative to the adjustment sleeve 31, the base 1 and the support seat 21 can be driven to move away from each other to increase the center height of the test support. When the adjustment rod is retracted relative to the adjustment sleeve 31, the base 1 and the support seat 21 can be driven to move closer to each other to reduce the center height of the test support. After the adjustment is completed, the adjustment sleeve 31 is used to limit and fix the adjustment rod to ensure the connection stability between the base 1 and the support seat 21. The adjustment is simple and reliable. This height adjustment method relies purely on mechanical structure adjustment, without the need for additional configuration of drive components such as motors or cylinders, reducing the overall weight of the test support, simple settings, and good structural reliability.

[0055] Specifically, the inner wall of the adjusting sleeve 31 is provided with a first thread segment and a second thread segment, and the first thread segment and the second thread segment have opposite rotation directions.

[0056] The adjustment rod specifically includes a first moving rod 32 and a second moving rod 33. The first moving rod 32 is connected to the base 1, and the second moving rod 33 is connected to the support seat 21. The adjustment sleeve 31 is sleeved on the outer periphery of the first moving rod 32 and the second moving rod 33, and the adjustment sleeve 31 can drive the first moving rod 32 and the second moving rod 33 to move closer to or away from each other. By driving the first moving rod 32 and the second moving rod 33 to move closer to or away from each other by the adjustment sleeve 31, the center height of the test support can be adjusted, which is convenient and simple.

[0057] Specifically, the first moving rod 32 is provided with a first external thread on its outer circumference, and the second moving rod 33 is provided with a second external thread on its outer circumference which is opposite to the first external thread. The first moving rod 32 and the adjusting sleeve 31 are threadedly connected by the cooperation of the first external thread and the first thread segment, and the second moving rod 33 and the adjusting sleeve 31 are threadedly connected by the cooperation of the second external thread and the second thread segment. During adjustment, the adjusting sleeve 31 can be rotated forward or backward to drive the first moving rod 32 and the second moving rod 33 to move closer or farther along the axial direction of the adjusting sleeve 31 through the threaded connection, thereby adjusting the center height of the test support. The adjustment method is simple, and the threaded connection makes the entire adjustment high in precision and good in controllability.

[0058] It can be understood that this embodiment can limit the maximum distance of the telescopic movement of the first moving rod 32 and the second moving rod 33 relative to the adjusting sleeve 31 by setting the length of the adjusting sleeve 31 and the length of the first thread segment and the second thread segment, thereby limiting the adjustment range of the center height of the test support, which is very convenient.

[0059] Furthermore, the adjustment assembly 3 also includes a first connecting member 36, which is connected to both the first moving rod 32 and the base 1, so as to realize the connection and fixation between the first moving rod 32 and the base 1. Specifically, a first connecting hole 321 is provided at one end of the first moving rod 32 away from the adjustment sleeve 31, and a first connecting groove is provided on the base 1. The first connecting hole 321 is clamped in the first connecting groove. The first connecting member 36 includes a first bolt and a first nut. The first bolt passes through the first connecting hole 321 and the first connecting groove, and the first nut is threadedly connected to the end of the first bolt to lock the first bolt and thus fasten the first moving rod 32 and the base 1.

[0060] Correspondingly, in order to realize the connection between the adjustment component 3 and the support seat 21, the adjustment component 3 also includes a second connecting member 37, and the second connecting member 37 is connected to both the second moving rod 33 and the support seat, so as to realize the connection and fixation between the second moving rod 33 and the support seat 21. Specifically, a second connecting hole 331 is provided at one end of the second moving rod 33 away from the adjustment sleeve 31, and a second connecting groove is provided on the support seat. The second connecting hole 331 is clamped in the second connecting groove. The second connecting member 37 includes a second bolt and a second nut. The second bolt passes through the second connecting hole 331 and the second connecting groove. The second nut is threadedly connected to the passing end of the second bolt to lock the second bolt and thus fasten the second moving rod 33 and the support seat 21.

[0061] Therefore, the arrangement of the first connecting member 36 and the second connecting member 37 enables the test support to be produced and assembled in an assembled manner, and is convenient for transportation and disassembly. One end of the first moving rod 32 is clamped in the first connecting groove, and one end of the second moving rod 33 is clamped in the second connecting groove. Therefore, the groove walls of the first connecting groove and the second connecting groove can respectively limit the first moving rod 32 and the second moving rod 33 to a certain extent, thereby improving the use stability of the test support.

[0062] The adjustment assembly 3 further includes a first locking nut 34, which is threadedly connected to the first moving rod 32 and is located between the base 1 and the adjustment sleeve 31. When the height adjustment is completed, the first locking nut 34 can be rotated to abut and limit the end of the adjustment sleeve 31 close to the base 1, thereby preventing the adjustment sleeve 31 from rotating close to the base 1 in a non-adjustment state, thereby enhancing the stability and reliability of the threaded connection between the adjustment sleeve 31 and the first moving rod 32.

[0063] In this embodiment, the adjustment assembly 3 further includes a second locking nut 35, which is threadedly connected to the second moving rod 33 and is located between the support seat 21 and the adjustment sleeve 31. When the height adjustment is completed, the second locking nut 35 can be rotated to abut and limit the end of the adjustment sleeve 31 close to the support seat 21, thereby preventing the adjustment sleeve 31 from rotating close to the support seat 21 in a non-adjustment state, thereby enhancing the stability and reliability of the threaded connection between the adjustment sleeve 31 and the second moving rod 33.

[0064] It is understandable that the setting of the first locking nut 34 and the second locking nut 35 can also provide certain support for the adjusting sleeve 31, thereby reducing the wear of the threads on the adjusting sleeve 31, the first moving rod 32 and the second moving rod 33 to a certain extent, thereby ensuring the service life of the components.

[0065] In terms of the number of settings, in this embodiment, two adjustment components 3 are provided and symmetrically arranged on opposite sides of the support seat 21, and the two adjustment components 3 are in an eight-shaped shape. The two adjustment components 3 are symmetrically arranged on opposite sides of the support seat 21 and the two adjustment components 3 are arranged in an eight-shaped shape, which improves the support stability of the support seat 21. When adjusting, the two adjustment sleeves 31 are rotated synchronously to make the two sides of the support seat 21 move up and down synchronously, so as to adjust the center height of the test support.

[0066] In addition, the test support further includes a base 4, which is connected to the base 1 to support the base 1. Specifically, the base 4 and the base 1 are fastened and connected by M12 bolts, which are convenient for disassembly and assembly. In other embodiments, the base 4 and the base 1 can also be connected by screws or pins, which is not limited to the solution of this embodiment.

[0067] Furthermore, one of the base 4 and the base 1 is provided with a positioning protrusion 11, and the other is provided with a positioning groove 41, and the positioning protrusion 11 is inserted into the positioning groove 41 to realize the installation positioning of the base 4 and the base 1, and realize quick installation. At the same time, the cooperation of the positioning groove 41 and the positioning protrusion 11 also limits the relative movement of the base 4 and the base 1, and improves the connection reliability between the two. In this embodiment, the positioning protrusion 11 is set at the bottom of the base 1, and the positioning groove 41 is opened at the top of the base 4.

[0068] The base 4 is movably arranged on the test platform, on which a T-slot is arranged, and the base 4 is fastened with a T-bolt, which is slidably matched with the T-slot to facilitate the movement of the base 4.

[0069] It is understandable that the test support of this embodiment further includes a guide portion 6, which is connected to the bottom of the base 4 to guide the movement of the base 4. The guide portion 6 is slidably arranged in the T-slot of the test platform, and the test support accurately moves along the opening direction of the T-slot through the sliding of the guide portion 6 in the T-slot, which facilitates the centering installation of the test support and the cantilever section. Specifically, the guide portion 6 is a strip, and the strip is connected to the base 4 by a plurality of bolts.

[0070] In this embodiment, the test support further includes a lifting lug 5, which is symmetrically arranged on both sides of the base 4 relative to the support 21 and is arranged on the support 21. The test support can be lifted and transported by the lifting lug 5, which is very convenient. Specifically, the lifting lug 5 is a lifting ring, which is suitable for cooperating with an external hook for easy lifting.

[0071] To facilitate understanding of the test support of this embodiment, the use and adjustment process of the test support are introduced as follows:

[0072] According to the height of the cantilever section from the test platform, choose whether to adjust the height of the test support;

[0073] When adjusting the height of the test support, by rotating the adjusting sleeve 31 in the positive direction or the reverse direction, the adjusting sleeve 31 drives the first moving rod 32 and the second moving rod 33 to move closer to or farther from each other, thereby driving the base 1 and the supporting seat 21 to move closer to each other to lower the center height of the test support or to move away from each other to increase the center height of the test support. When the center of the test support is flush with the cantilever section, the rotation of the adjusting sleeve 31 is stopped, and the first locking nut 34 and the second locking nut 35 are rotated to lock the two ends of the adjusting sleeve 31;

[0074] Push the test support to make the guide part 6 slide along the T-slot of the test platform. The test support gradually moves closer to the cantilever section and observe whether the center of the cantilever section and the support seat 21 are aligned. If not, rotate the adjusting sleeve 31 again to fine-tune the height of the test support to ensure that the center of the cantilever section and the support seat 21 are aligned. Continue to move the test support so that the cantilever section passes through the center of the bushing and is installed in matching with the bushing.

[0075] It should be noted that, in other embodiments, multiple adjustment holes can be set axially at intervals on the adjusting sleeve 31, the first movable rod 32 and the second movable rod 33, and the height of the test support can be adjusted by inserting the fastening bolts into different adjustment holes; the adjusting rod can also be set as a telescopic rod, and the height of the test support can be adjusted by extending or shortening the telescopic rod. At this time, the adjusting sleeve 31 only limits the position of the telescopic rod after extension and contraction, and is not limited to the adjustment scheme of this embodiment.

[0076] In addition, in other embodiments, the first locking nut 34 or the second locking nut 35 can be selectively set as needed; the lifting ear 5 can also be selectively set on the base 4 or the supporting seat 21 as needed; the test support of this embodiment is applied to the cantilever section test support of the rotor equipment, and in other embodiments it can also be used for other related rotating equipment test support as needed, all of which are not limited to this embodiment.

[0077] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the present invention.

Claims

1. A test support, characterized in that: include: Base (1); A support assembly (2) is arranged above the base (1), the support assembly (2) comprising a support seat (21) and a bearing (22) arranged in the support seat (21); an adjusting component (3) connected between the base (1) and the supporting seat (21), and the adjusting component (3) is a telescopic structure for driving the base (1) and the supporting seat (21) to move closer to or farther from each other; The adjustment assembly (3) comprises: an adjustment sleeve (31); an adjustment rod connected to both the base (1) and the support seat (21); the adjustment sleeve (31) is sleeved on the outer circumference of the adjustment rod, and the adjustment rod can be telescopically moved relative to the adjustment sleeve (31) and is limited by the adjustment sleeve (31); The adjustment rod comprises: a first moving rod (32) connected to the base (1); a second moving rod (33) connected to the support seat (21); the adjustment sleeve (31) is sleeved on the outer circumference of the first moving rod (32) and the second moving rod (33), and the adjustment sleeve (31) can drive the first moving rod (32) and the second moving rod (33) to move closer to or farther away from each other; The adjustment assembly (3) further comprises: a first locking nut (34) threadedly connected to the first moving rod (32) and located between the base (1) and the adjustment sleeve (31); and / or a second locking nut (35) threadedly connected to the second moving rod (33) and located between the support seat (21) and the adjustment sleeve (31); The adjustment assembly (3) further comprises a first connecting member (36) and a second connecting member (37), wherein the first connecting member (36) is connected to both the first moving rod (32) and the base (1), and the second connecting member (37) is connected to both the second moving rod (33) and the support seat (21).

2. The test support according to claim 1, characterized in that: The first moving rod (32) is provided with a first external thread on its outer periphery, the second moving rod (33) is provided with a second external thread having a rotation direction opposite to that of the first external thread on its outer periphery, and the inner wall of the adjusting sleeve (31) is provided with a first thread segment cooperating with the first external thread and a second thread segment cooperating with the second external thread.

3. The test support according to any one of claims 1 to 2, characterized in that The adjustment components (3) are provided with two and are symmetrically arranged on opposite sides of the support seat (21), and the two adjustment components (3) are in an eight-shaped shape.

4. The test support according to any one of claims 1 to 2, characterized in that The support seat (21) is provided with a slot (213), and the outer ring of the bearing (22) is abutted and installed in the slot (213).

5. The test support according to claim 4, characterized in that: The support assembly (2) further comprises: The crimping portion (23) is connected to the support seat (21), and the crimping portion (23) abuts against a side of the outer ring of the bearing (22) away from the clamping groove (213).

6. The test support according to claim 4, characterized in that: The support assembly (2) further comprises a bushing (24), wherein the bushing (24) is interference fit with the inner wall of the inner ring of the bearing (22).

7. The test support according to any one of claims 1 to 2, characterized in that It also comprises a base (4) connected to the base (1), one of the base (4) and the base (1) being provided with a positioning protrusion (11), and the other being provided with a positioning groove (41), the positioning protrusion (11) being inserted into the positioning groove (41).

8. The test support according to claim 7, characterized in that: It also comprises a lifting lug (5), wherein the lifting lug (5) is symmetrically arranged on two sides of the base (4) relative to the supporting seat (21), and / or the lifting lug (5) is arranged on the supporting seat (21).

9. The test support according to claim 7, characterized in that: It also comprises a guide portion (6), wherein the guide portion (6) is connected to the bottom of the base (4) to guide the movement of the base (4).

10. The test support according to any one of claims 1 to 2, characterized in that The support seat (21) is provided with a mounting base surface (211), and the mounting base surface (211) is parallel to a horizontal plane.

11. The test support according to any one of claims 1 to 2, characterized in that The top and side surfaces of the support seat (21) are both provided with mounting holes (212) suitable for mounting a vibration acceleration sensor.

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