Support device, test bed and test installation method

Abstract

The present application relates to the technical field of test bed, and discloses a supporting device, a test bed and a test installation method. The supporting device comprises a mounting platform, mounting seats, supporting arms, a damping assembly and a mounting joint. The mounting seats are arranged at intervals on the mounting platform. The supporting arms are rotatably connected to the mounting seats at one end. The damping assembly comprises elastic members and connecting members. The other ends of the supporting arms are rotatably connected to the connecting members. The connecting members and the mounting platform are arranged at intervals. The elastic members are arranged between the connecting members and the mounting platform and are used for supporting the connecting members. The mounting joint is arranged on the supporting arms and is used for connecting a test piece. The present application helps to reduce the safety hazards of the test piece and improve the test efficiency.

Description

Technical Field

[0001] This invention relates to the field of test bench technology, specifically to a support device, a test bench, and a test installation method. Background Technology

[0002] Ground testing is an essential and crucial step in the development of aero-engines. Ground testing of aero-engines is conducted on test stands, where the engines are installed and secured using main and auxiliary supports.

[0003] In some related technologies, auxiliary supports use adjustable-length tie rods, with two rods symmetrically connected to the aircraft engine to create a rigid support effect. However, during dynamic testing, this can cause excessive engine vibration, with vibration values ​​potentially approaching monitoring limits, posing a significant safety hazard.

[0004] Furthermore, during installation, the lengths of the two tie rods need to be adjusted separately to ensure that the support heights of the different auxiliary supports are consistent. However, it is often difficult to adjust the support heights of the two tie rods simultaneously, resulting in time-consuming and laborious adjustments that reduce the efficiency of engine testing. Summary of the Invention

[0005] In view of this, the present invention provides a support device, a test bench, and a test installation method to solve the problems of significant safety hazards and low test efficiency during dynamic testing of test pieces.

[0006] In a first aspect, the present invention provides a support device, including a mounting platform, mounting seats, support arms, vibration damping components, and mounting sections; a plurality of mounting seats are spaced apart on the mounting platform; one end of each of the plurality of support arms is rotatably connected to the mounting seat; the vibration damping component includes an elastic element and a connecting element, the other end of each support arm is rotatably connected to the connecting element, the connecting element and the mounting platform are spaced apart, the elastic element is disposed between the connecting element and the mounting platform, and the elastic element is used to support the connecting element; the mounting section is disposed on the support arm and is used to connect a test specimen.

[0007] Beneficial effects: Multiple support arms are connected at one end to their respective mounting bases and at the other end to the same connector, making the support device approximately form a simply supported beam. On the one hand, during static testing, the simply supported beam structure and the auxiliary support of the elastic element below the simply supported beam enable the support device to provide good rigid support for the test specimen. On the other hand, during dynamic testing, the support arms vibrate under the force of the test specimen. After the vibration is amplified by the leverage effect of the support arms, it acts on the connector. The elastic element can then act on the connector to produce a buffering and vibration absorption effect, thereby suppressing the vibration of the test specimen and improving the safety of the test. Furthermore, since multiple support arms are connected to the same connector, the positions of multiple mounting sections can be adjusted synchronously during assembly, ensuring the consistency of the mounting section positions, improving assembly efficiency, and thus improving test efficiency.

[0008] In one alternative embodiment, the vibration damping assembly further includes a guide post inserted into the mounting platform, and the elastic element and the connector sleeved on the guide post.

[0009] Beneficial effects: The guide post guides the connector, constrains the vibration direction of the connector, and ensures that the elastic element can only extend and retract along the axial direction of the guide post. This protects the elastic element and makes its vibration damping effect more stable.

[0010] In one alternative embodiment, the vibration damping assembly further includes a first spacer and a locking nut. The first spacer is sleeved on the guide post and located between the connector and the elastic member. The guide post includes a first step for limiting the first spacer. The locking nut presses the connector against the first spacer.

[0011] Beneficial effects: The guide post and the connector are fixed together by the locking nut, so that the guide post vibrates in the axial direction with the connector. This avoids collision between the connector and the guide post, and also prevents the connector from accidentally detaching from the guide post.

[0012] In one optional embodiment, the vibration damping assembly further includes a second spacer fixed to the mounting platform, the guide post being movably inserted into the second spacer, and the two ends of the elastic member abutting against the first spacer and the second spacer respectively; wherein, the guide post further includes a second step located on the side of the second spacer opposite to the elastic member, and the second step is used to limit the second spacer.

[0013] Beneficial effects: The force is applied to the elastic element through the first and second spacers, which makes the force on the elastic element more uniform and produces a better vibration reduction effect. At the same time, the second spacer is fixed on the installation platform and restricts the axial travel of the guide column through the interaction with the second step, which can also prevent the guide column from accidentally detaching from the installation platform due to excessive amplitude.

[0014] In one optional embodiment, the first spacer includes a first positioning groove, the second spacer includes a second positioning groove, and the two ends of the elastic member are respectively embedded in the first positioning groove and the second positioning groove.

[0015] Beneficial effects: The first and second positioning grooves provide positioning for the elastic element, preventing it from shifting position during extension and contraction.

[0016] In one alternative embodiment, the connector includes a first connecting shaft, and the support arm is sleeved on the first connecting shaft, with the support arm and the first connecting shaft having a clearance fit.

[0017] Beneficial effect: The support arm is connected to the connector via the first connecting shaft, thereby enabling it to rotate relative to the connector during vibration.

[0018] In one alternative embodiment, the system further includes a first spherical bearing and a second connecting shaft, wherein the first spherical bearing is disposed on the mounting base, the second connecting shaft passes through the first spherical bearing, and the support arm is sleeved on the second connecting shaft.

[0019] Beneficial effects: The support arm is connected to the mounting base via the second connecting shaft, thereby enabling it to rotate relative to the mounting base during vibration. The first joint bearing can increase the rotational freedom of the support arm, allowing a certain angle between the axis of the support arm and the axis of the second connecting shaft, thus compensating for assembly errors.

[0020] In one alternative embodiment, the system further includes a second spherical bearing and a third connecting shaft, the third connecting shaft passing through the support arm, the second spherical bearing being sleeved on the third connecting shaft, and the mounting section being disposed on the second spherical bearing.

[0021] Beneficial effects: The second joint bearing can increase the rotational freedom of the mounting section, absorb vibrations in other directions during the test piece's operation, ensure that the force on the support arm is perpendicular to the rotation axis of the support arm, ensure that the support arm can move flexibly during vibration, and improve the vibration absorption effect of the support device.

[0022] Secondly, the present invention also provides a test bench, including a frame, a main support and an auxiliary support; the main support is disposed on the frame and is used to support an engine; the auxiliary support includes the support device provided by the present invention, the auxiliary support is disposed on the frame and is used to support the engine.

[0023] Beneficial effects: The test bench includes the support device provided by the present invention, and therefore has the corresponding beneficial effects brought by the support device, which will not be elaborated here.

[0024] Thirdly, the present invention also provides a test installation method, wherein the test installation method uses a test bench provided by the present invention, and the test installation method includes: installing the main support and the auxiliary support on the test bench; and installing the engine onto the main support and the auxiliary support.

[0025] Beneficial effects: The test installation method uses the test bench provided by this invention, and therefore has the beneficial effects brought by the support device, which will not be elaborated here. Attached Figure Description

[0026] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0027] Figure 1 This is a three-dimensional structural schematic diagram of a support device according to an embodiment of the present invention;

[0028] Figure 2 This is a schematic diagram of the main structure of a support device according to an embodiment of the present invention;

[0029] Figure 3 This is a top view of a support device according to an embodiment of the present invention;

[0030] Figure 4 for Figure 2 Sectional view of section AA;

[0031] Figure 5 for Figure 2 Sectional view of section BB;

[0032] Figure 6 for Figure 2 A sectional view of section CC.

[0033] Explanation of reference numerals in the attached figures:

[0034] 1. Mounting platform; 2. Mounting base; 3. Support arm; 301. First support arm; 302. Second support arm; 4. Vibration damping assembly; 401. Elastic element; 402. Connector; 4021. First connecting shaft; 404. Guide post; 4041. First step; 4042. Second step; 405. Locking nut; 406. First spacer; 407. Second spacer; 501. First spherical bearing; 502. Second spherical bearing; 601. Second connecting shaft; 602. Third connecting shaft; 7. Mounting section; 8. Base; 801. First mounting groove; 9. Support post 。 Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0036] It should be understood that the terminology used herein is for the purpose of describing particular exemplary embodiments only and is not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms "a," "an," and "comprising" as used herein may also mean including the plural forms. The terms "comprising," "including," and "having" are inclusive and therefore indicate the presence of the stated features, elements, and / or components, but do not exclude the presence or addition of one or more other features, elements, components, and / or combinations thereof.

[0037] Although terms such as "first," "second," etc., may be used in this document to describe multiple elements, components, regions, layers, and / or segments, these elements, components, regions, layers, and / or segments should not be limited by these terms. These terms may be used only to distinguish one element, component, region, layer, or segment from another. Unless the context clearly indicates otherwise, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence. Furthermore, in the description of this invention, unless otherwise expressly specified and limited, the terms "set up" and "connected" should be interpreted broadly; for example, they may refer to a fixed connection, a detachable connection, or an integral connection; they may refer to a direct connection or an indirect connection via an intermediate medium. Those skilled in the art will understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0038] For ease of description, spatial relative terms may be used in the text to describe the relationship of one element or feature relative to another element or feature, as shown in the figure. These relative terms include, for example, "end," "length," "inner," "outer," etc. Such spatial relative terms are intended to include different orientations of the mechanism in use or operation, in addition to those depicted in the figure. For example, if the mechanism in the figure is flipped, an element described as "below other elements or features" or "below other elements or features" would subsequently be oriented as "above other elements or features" or "above other elements or features." Therefore, the example term "below" can include both upper and lower orientations. The mechanism may be otherwise oriented (rotated 90 degrees or in other directions), and the spatial relative descriptors used in the text will be interpreted accordingly.

[0039] Ground tests of aero-engines are conducted on test stands, where the engines are mounted and secured using main and auxiliary supports. In some related technologies, the auxiliary support employs two symmetrically arranged tie rods that rigidly connect to and support the aero-engine (or other test components) to meet the fixation requirements during static testing.

[0040] However, during dynamic testing, rigid supports make it difficult to absorb vibrations in the test piece, leading to excessive amplitude and potential safety hazards. Furthermore, during assembly, it is generally required that the two auxiliary support positions of the test piece (i.e., the parts where the test piece connects to the tie rods) be at the same horizontal level. In related technologies, the lengths of the two tie rods are adjusted separately, resulting in time-consuming and labor-intensive adjustments that reduce the efficiency of engine testing.

[0041] The following is combined with Figures 1 to 6 The following describes embodiments of the present invention.

[0042] Reference Figure 1 , Figure 2 , Figure 3 According to an embodiment of the present invention, in one aspect, a support device is provided, including an installation platform 1, a mounting base 2, a support arm 3, a vibration damping component 4, and an installation section 7.

[0043] Multiple mounting bases 2 are spaced apart on the mounting platform 1. Multiple support arms 3 are rotatably connected at one end to the mounting base 2. The vibration damping component 4 includes an elastic element 401 and a connector 402. The other end of each support arm 3 is rotatably connected to the connector 402. The connector 402 and the mounting platform 1 are spaced apart. The elastic element 401 is disposed between the connector 402 and the mounting platform 1. The elastic element 401 is used to support the connector 402. The mounting section 7 is disposed on the support arm 3 and is used to connect the test specimen.

[0044] Multiple support arms 3 are connected at one end to their respective mounting bases 2 and at the other end to the same connector 402, making the support device approximately form a simply supported beam. On the one hand, during the static test, the simply supported beam structure and the auxiliary support of the elastic element 401 below the simply supported beam enable the support device to provide good rigid support for the test piece. On the other hand, during the dynamic test, the support arms 3 vibrate under the force of the test piece. After the vibration is amplified by the leverage effect of the support arms 3, it acts on the connector 402. The elastic element 401 can act on the connector 402 at this time to produce a buffering and vibration absorption effect, thereby suppressing the vibration of the test piece and improving the safety of the test.

[0045] Furthermore, since multiple support arms 3 are connected to the same connector 402, the positions of multiple mounting sections 7 can be adjusted synchronously during assembly, ensuring the consistency of the positions of the mounting sections 7, improving assembly efficiency, and thus improving test efficiency.

[0046] Therefore, support devices help reduce safety hazards of test specimens and improve test efficiency.

[0047] For example, in Figure 1 , Figure 2 , Figure 3 In the illustrated embodiment, the support device has two mounting seats 2, and the support arms 3 are divided into two groups (including a first support arm 301 and a second support arm 302). The two groups of support arms 3 correspond one-to-one with the mounting seats 2, respectively connected between the corresponding mounting seats 2 and the connecting member 402, and the two groups of support arms 3 are arranged coplanarly (in other words, the rotation axes of the two groups of support arms 3 are parallel to each other). In this case, the support device provides two auxiliary support points for the test piece, meeting the support requirements of most test pieces. Simultaneously, the support device approximately forms a standard simply supported beam structure with two support points, providing rigid support in static tests while generating suitable amplitude in dynamic tests, thus meeting the requirements for flexible vibration reduction.

[0048] Furthermore, to ensure consistent adjustment range of the mounting sections 7, in some embodiments, the lengths of the two sets of support arms 3 (specifically, the distance between the two rotating shafts at both ends of the support arm 3) are the same, and the distances from the connection points of the two mounting sections 7 and support arms 3 to the corresponding mounting seats 2 are the same. This ensures that the movement range of the two mounting sections 7 remains consistent when the connector 402 moves.

[0049] Of course, in some other embodiments not shown, the length of the support arm 3 can also be different. In this case, by utilizing the lever principle of scaling, and adjusting the installation positions of the two mounting sections 7 on their respective support arms 3, the movement amplitude of the two mounting sections 7 can be kept consistent when the connector 402 moves. However, in this case, the connector 402 is not located at the center of the simply supported beam, and the lever arms formed by the first support arm 301 and the second support arm 302 are different, which may lead to deviations in the vibration damping effect of the mounting sections 7 on both sides. Furthermore, as the number of mounting seats 2 and support arms 3 increases further, the complexity of assembly will increase rapidly.

[0050] In some embodiments, in conjunction with reference Figure 4 The vibration damping component 4 also includes a guide post 404, which is inserted into the mounting platform 1. The elastic element 401 and the connector 402 are sleeved on the guide post 404. The guide post 404 guides the connector 402, constrains the vibration direction of the connector 402, and ensures that the elastic element 401 can only extend and retract along the axial direction of the guide post 404. This protects the elastic element 401 and also makes its vibration damping effect more stable.

[0051] Optionally, the guide post 404 can be fixed on the mounting platform 1, and the connector 402 can move along the guide post 404, or the guide post 404 can be fixed together with the connector 402, and the guide post 404 can move axially relative to the mounting platform 1.

[0052] Exemplarily, in some embodiments, the vibration damping assembly 4 further includes a first spacer 406 and a locking nut 405. The first spacer 406 is sleeved on the guide post 404 and located between the connector 402 and the elastic member 401. The guide post 404 includes a first step 4041, which is used to limit the first spacer 406. The locking nut 405 presses the connector 402 against the first spacer 406. The guide post 404 and the connector 402 are fixed together by the locking nut 405, so that the guide post 404 follows the connector 402 in the axial direction, which on the one hand prevents the connector 402 and the guide post 404 from colliding, and on the other hand prevents the connector 402 from accidentally detaching from the guide post 404.

[0053] Optionally, in some embodiments, the elastic element 401 can be a compression spring, which is also sleeved on the guide post 404. The guide post 404 guides the extension and retraction of the compression spring and limits its radial offset. The compression spring can be a high-stiffness mold spring or the like, which helps to effectively absorb the energy released by the vibration of a large-mass test piece.

[0054] In some embodiments, the vibration damping assembly 4 further includes a second spacer 407, which is fixed to the mounting platform 1. A guide post 404 is movably inserted into the second spacer 407, and both ends of the elastic member 401 abut against the first spacer 406 and the second spacer 407, respectively. The force is applied to the elastic member 401 through the first spacer 406 and the second spacer 407, resulting in a more uniform force distribution on the elastic member 401 and a better vibration damping effect. Optionally, the second spacer 407 can be made of a bearing alloy (e.g., Babbitt metal) to facilitate smoother relative movement between the second spacer 407 and the guide post 404.

[0055] For example, refer to Figure 3 The second spacer 407 is mounted on the mounting platform 1 by fasteners. When viewed from the axial direction, the mounting position of the fasteners is offset from that of the support arm 3 and the first spacer 406 to facilitate the installation of the fasteners.

[0056] Furthermore, the guide post 404 may also include a second step 4042, which is located on the side of the second spacer 407 opposite to the elastic member 401. The second step 4042 is used to limit the second spacer 407. The second spacer 407 is fixed on the mounting platform 1, and the interaction between the second spacer 4042 and the second step 4042 limits the axial travel of the guide post 404, and also prevents the guide post 404 from accidentally detaching from the mounting platform 1 due to excessive amplitude.

[0057] In some embodiments, the outer diameter of the second step 4042 is greater than the outer diameter of the first step 4041, the minimum inner diameter of the second spacer 407 is greater than the outer diameter of the first step 4041 and less than the outer diameter of the second step 4042, and the minimum inner diameter of the first spacer 406 is less than the outer diameter of the first step 4041, thereby satisfying the assembly requirements of the vibration damping component 4.

[0058] In some embodiments, the mounting platform 1 may be provided with a through hole, and the second spacer 407 is embedded in the through hole with a clearance fit or a transition fit, thereby positioning the position of the vibration damping component 4, and then the mounting base 2 is assembled with the position of the vibration damping component 4 as a reference.

[0059] In some embodiments, the first spacer 406 further includes a first positioning groove, and the second spacer 407 includes a second positioning groove. The two ends of the elastic member 401 are respectively embedded in the first positioning groove and the second positioning groove. The first positioning groove and the second positioning groove provide a positioning effect for the elastic member 401, preventing the elastic member 401 from shifting position during the extension and retraction process.

[0060] In some embodiments, the connector 402 includes a first connecting shaft 4021, and a support arm 3 is sleeved on the first connecting shaft 4021, with a clearance fit between the support arm 3 and the first connecting shaft 4021. The support arm 3 is connected to the connector 402 via the first connecting shaft 4021, thereby enabling rotation relative to the connector 402 during vibration.

[0061] Reference Figure 4 For example, the first support arm 301 and the second support arm 302 are sleeved on the same first connecting shaft 4021, so that the rotational freedom of the connector 402 along the axial direction of the first connecting shaft 4021 is unrestricted, thus making it smoother during vibration.

[0062] In some embodiments, refer to Figure 5 The support device also includes a first joint bearing 501 and a second connecting shaft 601. The first joint bearing 501 is mounted on the mounting base 2, the second connecting shaft 601 passes through the first joint bearing 501, and the support arm 3 is sleeved on the second connecting shaft 601.

[0063] The support arm 3 is connected to the mounting base 2 via the second connecting shaft 601, thereby enabling it to rotate relative to the mounting base 2 during vibration. The first joint bearing 501 can increase the rotational freedom of the support arm 3, allowing a certain angle between the axis of the support arm 3 and the axis of the second connecting shaft 601, thereby compensating for assembly errors.

[0064] Similarly, in some embodiments, reference is made to Figure 6 The support device also includes a second joint bearing 502 and a third connecting shaft 602. The third connecting shaft 602 passes through the support arm 3, the second joint bearing 502 is sleeved on the third connecting shaft 602, and the mounting section 7 is set on the second joint bearing 502.

[0065] The second joint bearing 502 can increase the rotational freedom of the mounting section 7, absorb vibrations in other directions during the operation of the test piece, ensure that the force on the support arm 3 is perpendicular to the rotation axis of the support arm 3, ensure that the support arm 3 can move flexibly during vibration, and improve the vibration absorption effect of the support device.

[0066] Back Figure 1 In some embodiments, the mounting section 7 is fixedly connected to the test piece by at least two mounting parts, thereby more accurately positioning the mounting section 7 and ensuring installation accuracy.

[0067] In some embodiments, each set of support arms 3 includes two support arms 3. A second connecting shaft 601 passes through the mounting base 2. The two support arms 3 of the same set are located on both sides of the mounting base 2 and are sleeved on both ends of the second connecting shaft 601. Two first connecting shafts 4021 are symmetrically arranged on the connector 402, and the two support arms 3 of the same set are respectively sleeved on the first connecting shafts 4021 on the same side. By adopting a symmetrical design, it helps to eliminate the torque exerted by the support arms 3 on the connector 402, so that the connector 402 can move more smoothly.

[0068] In some embodiments, correspondingly, a third connecting shaft 602 is connected between two support arms 3 in the same group, and a mounting section 7 is located between two support arms 3 in the same group.

[0069] In some embodiments, the support device further includes a base 8 and a support column 9, with the support column 9 disposed on the base 8 and the mounting platform 1 disposed on the support column 9. The base 8 is provided with a first mounting groove 801, through which the base 8 is mounted to the test bench frame. The extending direction of the first mounting groove 801 is perpendicular to the line connecting the two mounting seats 2, allowing for convenient adjustment of the position of the mounting seats 2 so that the mounting section 7 can be better connected to the test piece.

[0070] In some embodiments, the mounting platform 1 is provided with a second mounting groove, the extension direction of which is parallel to the line connecting the two mounting seats 2. The mounting seats 2 are mounted onto the mounting platform 1 through the second mounting groove. The second mounting groove allows for easy adjustment of the position of the mounting seats 2, so that the two mounting seats 2 are symmetrically arranged with respect to the vertical plane passing through the center of the test specimen, ensuring the consistency of the support effect of the two mounting sections 7 on the test specimen.

[0071] In some embodiments, the support column 9 can be raised and lowered (e.g., a hydraulic rod is used as the support column 9) so that the position of the mounting platform 1 is adjustable to meet the support requirements of test specimens of different specifications.

[0072] Secondly, the present invention also provides a test bench, including a frame, a main support and an auxiliary support; the main support is disposed on the frame and is used to support the engine; the auxiliary support includes the support device provided by the present invention, the auxiliary support is disposed on the frame and is used to support the engine.

[0073] The test bench includes the support device provided by this invention, and therefore has the beneficial effects brought by the support device, which will not be elaborated here. The main support of the test bench can refer to the conventional main support design in related technologies, which will not be elaborated here.

[0074] Thirdly, the present invention also provides a test installation method, which uses the test bench provided by the present invention and includes the following steps:

[0075] Step S110: Install the main support and auxiliary support on the platform.

[0076] Step S120: Install the engine onto the main support and auxiliary support.

[0077] The test installation method uses the test bench provided by this invention, and therefore has the beneficial effects brought by the support device, which will not be described in detail here.

[0078] In some embodiments, step S110 further includes: determining the specifications of the elastic element 401.

[0079] In some embodiments, the specifications of the elastic element 401 include its stiffness coefficient. For example, firstly, a simulation test is conducted on the engine under rigid support to obtain the engine's maximum amplitude; then, based on the engine's maximum amplitude and parameters (mass, center of gravity, etc.), the maximum energy of the vibration is determined, and the stiffness coefficient of the elastic element 401 is determined based on the maximum amplitude and maximum energy, thereby ensuring that the performance of the elastic element 401 meets the vibration absorption requirements.

[0080] In some embodiments, the specifications of the elastic element 401 also include its height in a free state (a state free from external force). For example, in the free state, the axis of the assembled support arm 3 is horizontal, and the height of the elastic element 401 in the free state is equal to the height of the space below the connector 402. Thus, in the free state, the elastic element 401 theoretically does not exert any force on the connector 402 while contacting the first spacer 406 (or the connector 402 in embodiments without a first spacer 406). Only after the engine is installed does the elastic element 401 exert a force on the connector 402, supporting the connector 402 in static tests and absorbing vibrations in dynamic tests.

[0081] In some embodiments, step S110 further includes: setting an installation platform 1 on a stand; setting a vibration damping component 4 on the installation platform 1; and setting a mounting base 2, a support arm 3, and an installation section 7 with the vibration damping component 4 as a reference.

[0082] In some embodiments, step S110 further includes adjusting the position of the base 8 so that the center of the connector 402 and the center of the engine are located on the same vertical plane. By adjusting the position of the vibration damping component 4 and then setting the mounting base 2 with the vibration damping component 4 as a reference, it helps to ensure the symmetry of the mounting base 2 and ensure the consistency of the support force of different mounting sections 7 on the engine.

[0083] Although embodiments of the invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A support device, characterized in that, include: Installation platform (1); Multiple mounting bases (2) are spaced apart on the mounting platform (1); Multiple support arms (3), one end of which is rotatably connected to the mounting base (2); The vibration damping component (4) includes an elastic element (401) and a connector (402). The other end of each of the support arms (3) is rotatably connected to the connector (402). The connector (402) and the mounting platform (1) are spaced apart. The elastic element (401) is disposed between the connector (402) and the mounting platform (1). The elastic element (401) is used to support the connector (402). The mounting section (7) is mounted on the support arm (3) for connecting the test piece; The connector (402) includes a first connecting shaft (4021), and the support arm (3) is sleeved on the first connecting shaft (4021). The support arm (3) and the first connecting shaft (4021) are in clearance fit.

2. The support device according to claim 1, characterized in that, The vibration damping component (4) also includes a guide post (404), which is inserted into the mounting platform (1), and the elastic element (401) and the connector (402) are sleeved on the guide post (404).

3. The support device according to claim 2, characterized in that, The vibration damping assembly (4) further includes a first spacer (406) and a locking nut (405). The first spacer (406) is sleeved on the guide post (404) and located between the connector (402) and the elastic member (401). The guide post (404) includes a first step (4041), which is used to limit the first spacer (406). The locking nut (405) presses the connector (402) against the first spacer (406).

4. The support device according to claim 3, characterized in that, The vibration damping component (4) also includes a second spacer (407), which is fixed on the mounting platform (1). The guide post (404) is movably inserted into the second spacer (407), and the two ends of the elastic member (401) abut against the first spacer (406) and the second spacer (407) respectively. The guide post (404) further includes a second step (4042), which is located on the side of the second spacer (407) away from the elastic member (401). The second step (4042) is used to limit the second spacer (407).

5. The support device according to claim 4, characterized in that, The first spacer (406) includes a first positioning groove, the second spacer (407) includes a second positioning groove, and the two ends of the elastic member (401) are respectively embedded in the first positioning groove and the second positioning groove.

6. The support device according to claim 1, characterized in that, It also includes a first spherical bearing (501) and a second connecting shaft (601). The first spherical bearing (501) is disposed on the mounting base (2), the second connecting shaft (601) passes through the first spherical bearing (501), and the support arm (3) is sleeved on the second connecting shaft (601).

7. The support device according to claim 1, characterized in that, It also includes a second joint bearing (502) and a third connecting shaft (602), the third connecting shaft (602) passing through the support arm (3), the second joint bearing (502) being sleeved on the third connecting shaft (602), and the mounting section (7) being disposed on the second joint bearing (502).

8. A test bench, characterized in that, include: stand; The main support, mounted on the platform, is used to support the engine; An auxiliary support, comprising the support device according to any one of claims 1 to 7, wherein the auxiliary support is disposed on the stand and is used to support the engine.

9. A trial installation method, characterized in that, The test installation method uses the test bench as described in claim 8, and the test installation method includes: The main support and the auxiliary support are installed on the platform; The engine is mounted onto the main support and the auxiliary support.

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