A suspension device, a test bench

Abstract

The present disclosure provides a suspension device and a test bench, relating to the technical field of testing, to solve the problem that the existing suspension device has low applicability to engines with different structural sizes. The suspension device includes a base portion and two relatively arranged suspension portions slidably disposed below the base portion. Each suspension portion is provided with a support assembly, and the opposite ends of the two support assemblies are used to connect both sides of the suspended object; each suspension portion is slidably disposed on the base portion along a first direction, and the first direction is the distribution direction of the two suspension portions on the base portion; each support assembly is slidably disposed on the corresponding suspension portion along a second direction, and the second direction is the length direction of the suspended object. The suspension device is used for mounting an engine during engine testing, and it can be adjusted according to the sizes of different engines and the corresponding mounting points, with strong applicability.

Description

Technical Field

[0001] The present disclosure relates to the field of testing, and particularly to a suspension device and a test bench. Background Art

[0002] A test bench usually consists of embedded steel beams, load-bearing frames, fixed frames, moving frames, protective brackets, thrust measurement devices, calibration devices, suspension devices, etc. Among them, the suspension device is used to install and fix the suspended object and transfer the load to the force measurement system, and is respectively connected to the suspended object and the moving frame.

[0003] Under normal circumstances, there are certain differences in the external structure dimensions of different suspended objects, and the positions and installation requirements of the main support points and auxiliary support points of the suspended object are also different. Therefore, the suspension device often needs to be designed separately, that is, one type of suspended object corresponds to one suspension device. This not only requires a large amount of design, processing, and manufacturing costs, but sometimes there will be a situation where scientific research tests wait for the processing and manufacturing cycle, thus affecting the progress of scientific research projects. Summary of the Invention

[0004] In order to solve the above technical problems, the present disclosure provides a suspension device and a test bench.

[0005] The purpose of the present disclosure is to overcome the technical problem of the low applicability of the existing suspension device, and provide a suspension device, including a base portion and two relatively arranged suspension portions slidably provided below the base portion. Each suspension portion is provided with a support assembly, and the opposite ends of the two support assemblies are used to connect both sides of the suspended object;

[0006] Each suspension portion is slidably provided on the base portion along a first direction, and the first direction is: the distribution direction of the two suspension portions on the base portion;

[0007] Each support assembly is slidably provided on the corresponding suspension portion along a second direction, and the second direction is: the length direction of the suspended object.

[0008] According to at least one embodiment of the present disclosure, each support assembly includes a sleeve portion and a top push rod provided in the sleeve portion. The top push rod is movably provided in the sleeve along the first direction, and the opposite ends of the two top push rods are used to connect the suspended object.

[0009] According to at least one embodiment of the present disclosure, each suspension portion is provided with a first guide rail portion having a first groove, and the outer wall of the sleeve portion is provided with a first boss that cooperates with the first groove. The length direction of the first groove is the second direction.

[0010] According to at least one embodiment of the present disclosure, the suspension portion is provided with a horizontal support portion, the first guide rail portion is provided above the support portion, and the distance between the guide rail portion and the support portion is adjustable.

[0011] According to at least one embodiment of the present disclosure, the first rail portion is detachably connected to the support portion, and n gaskets are provided between the support portion and the first rail portion, where n is a natural number; or,

[0012] The support portion is provided with a linear drive mechanism, and the bottom of the first guide rail portion is connected to a telescopic rod of the linear drive mechanism.

[0013] According to at least one embodiment of the present disclosure, the base portion is two oppositely arranged second guide rail portions, each of the second guide rail portions has a second groove, and the top of each of the hanging portions has two second bosses that cooperate with the corresponding second grooves, the flange of the second boss is suspended on the supporting surface of the second groove, and the length direction of the second groove is the first direction.

[0014] According to at least one embodiment of the present disclosure, the suspension device further comprises an auxiliary connection mechanism for fixing the suspended object, the auxiliary connection mechanism comprising two first connection members provided on the outer wall surface of the corresponding sleeve portion, and the length of each first connection member is adjustable; and / or,

[0015] The auxiliary connection mechanism includes two second connecting members arranged on one side of the corresponding hanging part, and each second connecting member extends along the second direction at an end away from the corresponding hanging part, and the end of the second connecting member away from the corresponding hanging part is connected to the upper wall of the hanging object.

[0016] According to at least one embodiment of the present disclosure, the suspension device also includes a supporting portion arranged on the other side of the suspension portion, the supporting portion is a frame structure, and a supporting rod is provided on the side of the supporting portion away from the suspension portion, and the supporting rod is used to support the bottom of the suspended object.

[0017] According to at least one embodiment of the present disclosure, the suspension device further includes a controller, a first driver for driving the sleeve portion to slide on the corresponding first guide rail portion along the second direction, and a second driver for driving the suspension portion to slide on the second guide rail portion along the first direction;

[0018] The first driver and the second driver are both connected to the controller for communication; and / or,

[0019] The suspension device further comprises a measuring device which is communicatively connected to the controller, and the measuring device is used to measure an initial position of the suspended object.

[0020] Compared with the prior art, the suspension device of the present disclosure has the following advantages:

[0021] The suspension device provided by the embodiment of the present disclosure includes a base portion and two relatively arranged suspension portions slidably disposed below the base portion. Each suspension portion is provided with a support assembly. The opposite ends of the two support assemblies are used to connect the two sides of the suspended object. The ends of the two support assemblies are located in the space between the two suspension portions and are respectively connected to the two sides of the suspended object, thus serving as the fulcrums that mainly bear the weight of the suspended object. Since each suspension portion is slidably disposed on the base portion along a first direction, and the first direction is the distribution direction of the two suspension portions on the base portion, that is, the distance between the two suspension portions is adjustable; each support assembly is slidably disposed on the corresponding suspension portion along a second direction, where the second direction is the length direction of the suspended object, that is, the points supporting the suspended object can move along the length direction of the suspended object. Therefore, the suspension device can be adjusted in two directions according to the sizes of different suspended objects and the corresponding mounting points, so that the support assembly moves to the mounting point of the suspended object, realizing the hanging and installation of suspended objects with different structural sizes.

[0022] Another object of the present disclosure is to further provide a test bench for testing an engine, including the above-mentioned suspension device, and the top of the suspension device is connected to the test bench frame.

[0023] The advantages of the test bench compared with the prior art are the same as those of the above-mentioned suspension device compared with the prior art, and will not be elaborated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The drawings illustrate exemplary embodiments of the present disclosure and are used together with the description to explain the principles of the present disclosure. These drawings are included to provide a further understanding of the present disclosure, and the drawings are included in this specification and form a part of this specification.

[0025] Figure 1 is a schematic structural diagram of a suspension device according to an embodiment of the present disclosure.

[0026] Figure 2 is a schematic structural diagram of a suspension device according to another embodiment of the present disclosure.

[0027] Figure 3 is a schematic structural diagram of a suspension portion according to an embodiment of the present disclosure.

[0028] Figure 4 is a schematic structural diagram of a support assembly according to an embodiment of the present disclosure.

[0029] Figure 5 is a schematic structural diagram of a support assembly according to another embodiment of the present disclosure.

[0030] Figure 6 It is a schematic structural diagram of a control device according to an embodiment of the present disclosure.

[0031] Reference numerals: 10, suspension part; 11, first guide rail part; 12, support part; 13, second boss; 131, flange; 20, base part; 21, second guide rail part; 30, support assembly; 31, sleeve part; 311, first boss; 32, ejector rod; 40, suspended object; 50, gasket; 61, first connecting member; 62, second connecting member; 70, supporting part; 71, supporting rod; 80, controller; 81, first driver; 82, second driver; 83, measuring device. Specific embodiments

[0032] The present disclosure will be further described in detail below with reference to the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the relevant content and do not limit the present disclosure. Additionally, it should be noted that for the sake of description, only parts related to the present disclosure are shown in the drawings.

[0033] It should be noted that, without conflict, the embodiments in the present disclosure and the features in the embodiments can be combined with each other. The present disclosure will be described in detail below with reference to the drawings and embodiments.

[0034] In the aeroengine full - scale test stand, the test stand frame system is one of the core mechanical devices. The suspended full - scale test stand usually consists of embedded steel beams, load - bearing frames, fixed frames, movable frames, protective brackets, thrust measuring devices, calibration devices, and suspension devices, etc. Among them, the suspension device is used to install and fix the engine and transfer the load to the force - measuring system, and it is respectively connected to the engine and the movable frame.

[0035] Due to different thrust levels, there will be certain differences in the external structural dimensions of different types of aeroengines, and the positions and installation requirements of the main support points and auxiliary support points of the engine will also be different. Therefore, the engine suspension device often needs to be designed separately, that is, one type of engine corresponds to one suspension device. The vertical elevation between the in - line center of the engine during installation and the ground in the test workshop is usually fixed because the in - line center of the engine needs to be consistent with the center of the exhaust ejector barrel, and there are also certain requirements for the exhaust spacing between the engine tail nozzle and the inlet end of the exhaust ejector barrel during scientific research tests.

[0036] As the innovative research of aero-engines enters the fast lane, many forward-looking or disruptive key technologies need to be verified in the overall engine environment. This requires improving the applicability of traditional aero-engine test stands, that is, enhancing the multi-purpose capacity. The suspension device of the test stand is a device with relatively frequent replacement times. It not only requires a large amount of design, processing, and manufacturing costs, but sometimes there will be a situation where scientific research tests wait for the processing and manufacturing cycle, thus affecting the progress of scientific research projects.

[0037] To solve this problem, the present disclosure proposes a suspension device. This suspension device realizes wide-range adjustment in multiple directions along the engine, breaks through the single-point matching mode between the conventional engine and the suspension device, is applicable to the installation of engines with various different structural sizes, can improve the applicability of the test stand, and thus greatly reduce the overall transformation cost of the test stand and shorten the construction period.

[0038] Figure 1 The structural schematic diagram of the suspension device of the exemplary embodiment of the present disclosure mounting an aero-engine is shown. Figure 2 The structural schematic diagram of the main body of the suspension device of the exemplary embodiment of the present disclosure is shown. Please refer to Figure 1 - Figure 2 As shown, the suspension device provided by the exemplary embodiment of the present disclosure includes:

[0039] A base part 20 and two relatively arranged suspension parts 10 slidably arranged below the base part 20. Each suspension part 10 is provided with a support assembly 30. The opposite ends of the two support assemblies 30 are used to connect both sides of the suspended object 40; each suspension part 10 is slidably arranged on the base part 20 along a first direction, and the first direction is: the distribution direction of the two suspension parts 10 on the base part 20; each support assembly 30 is slidably arranged on the corresponding suspension part 10 along a second direction, and the second direction is: the length direction of the suspended object 40.

[0040] The suspended object 40 of the exemplary embodiment of the present disclosure includes but is not limited to aero-engines, aircraft, launch vehicles, etc. The present disclosure takes an aero-engine as an example for illustration.

[0041] In practical applications, the aero-engine is hoisted in place so that the vertical elevation of the engine's center along the flight direction and the ground in the test workshop meets the requirements, that is, the height between the engine axis and the ground, or the distance between the engine axis and the ground in the Z direction, and the engine's center along the flight direction needs to be consistent with the center of the exhaust ejector tube. Generally, the exhaust ejector tube is arranged outside the wall. Therefore, there needs to be a certain exhaust distance between the engine's tail nozzle and the wall with the exhaust ejector tube, and its axis is consistent with the axis of the exhaust ejector tube.

[0042] After the aero-engine is hoisted in place, adjust the distance between the two suspension parts 10 so that the end parts of each support assembly 30 and the side wall of the engine are respectively close to the side walls on both sides of the engine, that is, adjust the two suspension parts 10 to slide on the base part 20 along the first direction to the corresponding positions. Exemplarily, the first direction is Figure 1 the Y direction in Figure 1 and correspondingly, the second direction is

[0043] the X direction in

[0044] which is the axis direction of the engine. Then adjust the position of each support assembly 30 on the corresponding suspension part 10 along the X direction, so as to engage the end part of each support assembly 30 with the fulcrum of the engine, and further suspend the engine on the suspension device, and the elevation of the engine and the exhaust distance between its tail nozzle and the ejector barrel also meet the design requirements. Figure 2 As can be seen from the above, the suspension device of the exemplary embodiment of the present disclosure not only has a simple structure, but also can be adjusted in multiple degrees of freedom, so as to realize the hanging of engines with different structural dimensions, meet the scientific research test requirements at a lower cost, greatly reduce the test transformation cost, shorten the construction period, and expand the applicability of the suspension device.

[0045] The suspension part 10 provided by the exemplary embodiment of the present disclosure can be a Figure 3 frame structure as shown, or a plate-like structure. For example: suspend two steel plates below the base part 20 in a sliding manner, and the support assembly 30 is arranged at a position close to the bottom end of the steel plates and between the two steel plates.

[0046] Figure 4 and Figure 5 respectively show the schematic structural diagrams of the support assembly of the exemplary embodiment of the present disclosure. As Figure 4 - Figure 5 shown, the support assembly 30 of the exemplary embodiment of the present disclosure includes:

[0047] a sleeve part 31 and a top push rod 32 arranged in the sleeve part 31. The top push rod 32 is movably arranged in the sleeve part 31 along the first direction, and the end parts of the two top push rods 32 close to each other are used to connect the suspended object 40.

[0048] Exemplarily, the push rod 32 can be inside the sleeve portion 31 along the Y direction, and each push rod 32 has a tapered portion at the end facing the engine, so that it is easier to combine with the engine's mounting point when the push rod 32 is pushed toward the engine. When the support assembly 30 is adjusted into place, the push rod 32 is adjusted to engage with the engine mounting point to form a support.

[0049] In actual applications, the push rod 32 and the sleeve portion 31 can be threadedly connected, and the push rod 32 can be rotated manually or automatically controlled by a control device, so that the push rod 32 moves in the sleeve portion 31, thereby disengaging or engaging the tapered portion with the engine mounting point.

[0050] Exemplarily, the two push rods 32 are symmetrically arranged relative to the engine, and the axes of the push rods 32 are vertical and pass through the central axis of the engine, so as to ensure the stability of the engine mounting to the greatest extent.

[0051] For example, a manual adjustment hand wheel is provided at one end of the push rod 32 away from the engine. When the support assembly is adjusted in place, the push rod 32 can be rotated by manually adjusting the hand wheel so that its tapered portion engages with the engine mounting point, thereby avoiding the hidden danger of mechanical failure in the automatic control mode and possible damage to the engine mounting point. It is understandable that the push rod 32 can also be rotated by electric means, which is more precise in adjustment.

[0052] In order to realize that the support assembly 30 is slidably arranged on the corresponding suspension part 10 along the X direction, please refer to Figure 5 As shown, each suspension part 10 is provided with a first guide rail part 11 having a first groove, and the outer wall of the sleeve part 31 is provided with a first boss 311 matched with the first groove, and the length direction of the first groove is the second direction, that is, the length direction of the first guide rail part 11 is the X direction. The cross section of the first groove is in the shape of a "convex" cross section, and accordingly, the cross section of the first boss 311 is consistent with the shape of the cross section of the first groove.

[0053] It can be understood that the first groove and the first boss 311 have a relatively small matching clearance, and the entire support assembly 30 can be moved and adjusted along the X direction through oil film lubrication in the clearance.

[0054] Exemplarily, the first groove is arranged throughout the first rail portion 11, which can facilitate the disassembly of the support assembly 30, and limiting elements are designed at both ends of the first groove, and the limiting elements move with the movement of the first boss 311. When the position of the first boss 311 is adjusted to the right position, the limiting elements can fix the first boss 311. It is understandable that the present disclosure has no special limitation on the limiting elements, and the limiting elements are all commercially available products well known to those skilled in the art.

[0055] Regarding the adjustment of the engine elevation, please refer to Figure 4 As shown, the exemplary embodiment of the present disclosure is achieved by adjusting the height of the support assembly 30 in the Z direction. Specifically, the suspension portion 10 is provided with a horizontal support portion 12, and the first guide rail portion 11 is provided above the support portion 12, and the distance between the first guide rail portion 11 and the support portion 12 is adjustable.

[0056] There are various ways to achieve the adjustable distance between the first guide rail portion 11 and the support portion 12. For example, the first guide rail portion 11 is detachably connected to the support portion 12, and n gaskets 50 are provided between the support portion 12 and the first guide rail portion 11, where n is a natural number.

[0057] Exemplarily, the first guide rail portion 11 is connected to the horizontally arranged support portion 12 by bolts, and the height of the support assembly 30 in the Z direction is achieved by adjusting the number of gaskets 50 between the support portion 12 and the first guide rail portion 11. It can be understood that when the elevation design requirements are met, the gaskets 50 may not be provided between the support portion 12 and the first guide rail portion 11.

[0058] In another alternative embodiment, the support portion 12 is provided with a linear drive mechanism, and the bottom of the first guide rail portion 11 is connected to the telescopic rod of the linear drive mechanism. By using the driving mode of the linear drive mechanism to adjust the height of the first guide rail portion 11 in the Z direction, automatic control can be performed without manual intervention.

[0059] Figure 3 Shows a schematic structural diagram of the suspension portion of the exemplary embodiment of the present disclosure. Combining Figure 3 and Figure 2 As shown, the base portion 20 of the exemplary embodiment of the present disclosure is two relatively arranged second guide rail portions 21, each second guide rail portion 21 has a second groove, and the top of each suspension portion 10 has two second bosses 13 that cooperate with the corresponding second grooves. The flange 131 of the second boss 13 is suspended on the support surface of the second groove, and the length direction of the second groove is the first direction.

[0060] It can be understood that the length direction of the second guide rail portion 21 is the Y direction, and the length direction of the second groove is correspondingly the Y direction. The second boss 13 at the top of the suspension portion 10 is in the shape of an inverted "convex", and correspondingly, the cross-sectional shape of the second groove is also the same as the shape of the second boss 13. The flanges 131 formed on both sides of the shape of the second boss 13 can be suspended on the support surface of the second groove, and can not only slide along the Y direction in the second groove, but also will not fall off from the second groove of the second guide rail portion 21.

[0061] It can be understood that the above-mentioned second groove and the second boss 13 have a small fitting clearance, and the entire suspension part 10 is moved and adjusted along the Y direction through oil film lubrication within the clearance.

[0062] Exemplarily, the above-mentioned second groove is provided throughout the second guide rail part 21, that is, the second groove runs through along the length direction of the second guide rail part 21, which facilitates the disassembly of the suspension part 10. Limit elements are designed at both ends of the second groove, and the limit elements will move along with the movement of the second boss 13. When the position of the second boss 13 is adjusted in place, the limit elements can fix the second boss 13.

[0063] In some embodiments, please refer to Figure 4 As shown, the suspension device further includes an auxiliary connection mechanism for fixing the suspended object 40. The auxiliary connection mechanism includes two first connection members 61, which are respectively arranged on the outer wall surfaces of the corresponding sleeve parts 31, and the length of each first connection member 61 is adjustable.

[0064] Exemplarily, the above-mentioned first connection member 61 adopts a multi-section combination method, such as a method of connecting two screw rods, or a method of connecting a screw rod and a rope, or only a method of connecting ropes, to connect both sides of the engine to the corresponding sleeve part 31, thereby assisting in fixing the engine, having a certain adjustment margin, and facilitating the operator to connect and lock according to the actual situation.

[0065] In order to ensure the overall stability of the engine on the suspension device, in some embodiments, please refer to Figure 1 As shown, the auxiliary connection mechanism includes two second connection members 62 arranged on one side of the corresponding suspension part 10. The end of each second connection member 62 facing away from the corresponding suspension part 10 extends along the second direction, and the end of the second connection member 62 facing away from the corresponding suspension part 10 is connected to the upper wall of the suspended object 40. It can be understood that the second connection member 62 is connected to the suspension part 10 by a rigid structure, and the other end extends in the X direction away from the suspension part 10 and is connected to a position near the top of the engine. Optionally, each suspension part 10 is provided with a second connection member 62, and the two second connection members 62 are respectively connected to the top position of the engine from both sides of the engine.

[0066] Exemplarily, at the connection position between the end of the second connecting member 62 and the engine, the same multi-segment combination method as that of the first connecting member 61 can be adopted. For example, the two-screw connection method, or the connection method of a screw and a rope, or only the connection method of a rope can be used to connect the two sides of the top of the engine to the corresponding suspension parts 10, thereby assisting in fixing the engine. It has a certain adjustment margin, which is convenient for the operator to connect and lock according to the actual situation. The auxiliary fixation of the second connecting member 62 can ensure the overall stability of the engine for an engine with a longer length. Through the combined supporting action of the above-mentioned supporting assembly 30 and the auxiliary fixation of the second connecting member 62, the elevation of the engine center line and the test workshop floor can be adjusted to meet the design requirements.

[0067] To further stabilize the supporting stability of the suspension device for the engine, please refer to Figure 2 As shown, the suspension device further includes a supporting part 70 provided on the other side of the suspension part 10. The supporting part 70 is a frame structure. A supporting rod 71 is provided on the side of the supporting part 70 facing away from the suspension part 10, and the supporting rod 71 is used to support the bottom of the suspended object 40. That is, the supporting part 70 is provided at the position of the engine near the air inlet. The supporting part 70 adopts a frame structure, and a supporting rod 71 arranged along the Y direction is provided at the end of the supporting part 70 facing away from the suspension part 10 for supporting the bottom of the engine. It can be understood that the supporting rod 71 can be a straight rod or a rod with a curvature matching the outer wall of the engine, similar to the shape of a hoop. To ensure the adjustable distance between the two suspension parts 10, the supporting part 70 can be set as two half parts in the middle part, that is, the supporting rod 71 is divided into two rod segments, and a plurality of holes are provided between the two rod segments, and then fixed by bolts. Exemplarily, to ensure the force stability of the suspension part 10, on the same side of the two suspension parts 10, the two suspension parts 10 are connected together in the form of a reinforcing rod, and the length direction of the reinforcing rod is the Y direction. Similarly, to ensure that the distance between the two suspension parts 10 can be adjusted, the reinforcing rod also adopts the method of two rod segments, and a plurality of holes are provided between the two rod segments, and the two are connected by passing bolts according to the actual distance.

[0068] Figure 6 Shows a schematic structural diagram of the control device according to an exemplary embodiment of the present disclosure. Please refer to Figure 1 and Figure 6As shown in the figure, the suspension device of the exemplary embodiment of the present disclosure further includes a controller 80, a first driver 81 for driving the sleeve portion 31 to slide along the second direction on the corresponding first guide rail portion 11, and a second driver 82 for driving the suspension portion 10 to slide along the first direction on the second guide rail portion 21; both the first driver 81 and the second driver 82 are communicatively connected to the controller 80. The controller 80 includes, but is not limited to, a PLC, a central control unit, a computer, etc. The first driver 81 and the second driver 82 include, but are not limited to, a motor, a hydraulic cylinder, a cylinder, or an electric cylinder, etc.

[0069] In order to precisely adjust the relative position between the suspension device and the engine, the suspension device further includes a measuring device 83 communicatively connected to the controller 80, and the measuring device 83 is used to measure the initial position of the suspended object 40.

[0070] In practical applications, the measuring device 83 is responsible for measuring and recording the initial position of the engine, including the data information in the X, Y, and Z directions. The measuring device 83 transmits the position data to the controller 80. After being analyzed and processed by the controller 80, an adjustment instruction is issued. Among them, by sending the adjustment instructions for the suspension device in the Y direction to the two second drivers 82 respectively, the two second drivers 82 drive the second bosses 13 of the corresponding suspension portions 10 to move in the second grooves of the second guide rail portion 21, and the two suspension portions 10 drive the corresponding support assemblies 30 to move, so as to achieve the adjustment in the Y direction. After adjusting to the specified position, it is fixed and locked by a limiting element. Similarly, by sending the adjustment instructions for the suspension device in the X direction to the two first drivers 81 respectively, the two first drivers 81 drive the first bosses 311 of the corresponding support assemblies 30 to move in the first grooves of the first guide rail portion 11, so as to achieve the adjustment of the support point in the X direction. After adjusting to the specified position, it is fixed and locked by a limiting element.

[0071] As can be seen from the above, the exemplary embodiment of the present disclosure combines the measuring device 83 with the controller 80, the first driver 81, and the second driver 82 to measure the actual position data of the engine. After being analyzed by the controller 80, the adjustment signals and data are sent to the corresponding drivers to perform actions, so as to achieve real-time precise adjustment.

[0072] Exemplarily, the adjustment data of the suspension device in the Z direction is realized by increasing or decreasing the number of adjusting shims 50 according to the adjustment amount displayed on the controller 80, or by adjusting the telescopic amount of the telescopic rod of the linear drive mechanism.

[0073] As can be seen from the above, the first boss 311 of the support assembly 30 of the exemplary embodiment of the present disclosure can be detached from the first guide rail portion 11, the second boss 13 of the suspension portion 10 can be detached from the second guide rail portion 21, and the second connecting member 62 can also be detachably connected to the suspension portion 10. Therefore, the components of the suspension device of the present disclosure are detachable. The split combination installation is conducive to the operation and maintenance of the installers. When a certain unit is damaged during later maintenance, only the damaged unit needs to be locally replaced with a new one.

[0074] The exemplary embodiment of the present disclosure also provides a test bench for testing an engine. The test bench includes the above-mentioned suspension device, and the top of the suspension device is connected to the test bench frame. Exemplarily, connection units are further provided at the tops of the two second guide rail portions 21 of the suspension device. The two ends of the connection unit are respectively connected to the corresponding second guide rail portions 21. The connection unit is a plate-like structure and is also used to connect to the moving frame in the test bench frame.

[0075] For the specific function implementation of the test bench provided by the exemplary embodiment of the present disclosure, please refer to the description of the above-mentioned suspension device, which will not be elaborated here.

[0076] In the description of this specification, the description with reference to terms such as "one embodiment / way", "some embodiments / ways", "example", "specific example", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment / way or example are included in at least one embodiment / way or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment / way or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments / ways or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments / ways or examples described in this specification and the features of different embodiments / ways or examples.

[0077] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" can explicitly or implicitly include at least one of the features. In the description of the present application, "a plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0078] Those skilled in the art should understand that the above embodiments are only for clearly explaining the present disclosure and are not intended to limit the scope of the present disclosure. For those skilled in the art, other changes or modifications can be made on the basis of the above disclosure, and these changes or modifications are still within the scope of the present disclosure.

Claims

1. A suspension device, It is characterized in that It comprises a base part and two oppositely arranged hanging parts which are slidably arranged below the base part, each hanging part is provided with a supporting assembly, and opposite ends of the two supporting assemblies are used to connect two sides of the hanging object; Each of the suspension parts is slidably arranged on the base part along a first direction, wherein the first direction is: a distribution direction of the two suspension parts on the base part; Each of the support components is slidably disposed on the corresponding suspension portion along a second direction, wherein the second direction is: the length direction of the suspension object; Each of the support assemblies comprises a sleeve portion and a push rod disposed in the sleeve portion, wherein the push rod is movably disposed in the sleeve portion along the first direction, and ends of two push rods close to each other are used to connect the hanging object; Each of the hanging parts is provided with a first guide rail part having a first groove, and the outer wall of the sleeve part is provided with a first boss matched with the first groove, and the length direction of the first groove is the second direction; The suspension portion is provided with a horizontal support portion, the first guide rail portion is provided above the support portion, and the distance between the first guide rail portion and the support portion is adjustable; The first guide rail portion is detachably connected to the support portion, and n gaskets are provided between the support portion and the first guide rail portion, where n is a natural number; or the support portion is provided with a linear drive mechanism, and the bottom of the first guide rail portion is connected to a telescopic rod of the linear drive mechanism; The base portion is two second guide rail portions arranged opposite to each other, each second guide rail portion has a second groove, and the top of each hanging portion has two second bosses matched with the corresponding second grooves, and the flange of the second boss is hung on the supporting surface of the second groove, and the length direction of the second groove is the first direction; The suspension device further comprises an auxiliary connection mechanism for fixing the suspended object, wherein the auxiliary connection mechanism comprises two first connection members, each of which is arranged on the outer wall surface of the corresponding sleeve portion, and each of which has an adjustable length; and / or, The auxiliary connecting mechanism includes at least one second connecting member, each of which is arranged on one side of the corresponding hanging part, and each of the second connecting members extends along the second direction at an end away from the corresponding hanging part, and the end of the second connecting member away from the corresponding hanging part is connected to the upper wall of the hanging object.

2. The suspension device according to claim 1, It is characterized in that The suspension device also includes a supporting portion arranged on the other side of the suspension portion, the supporting portion is a frame structure, and a supporting rod is provided on the side of the supporting portion away from the suspension portion, and the supporting rod is used to support the bottom of the suspended object.

3. The suspension device according to claim 1, It is characterized in that The suspension device further comprises a controller, a first driver for driving the sleeve portion to slide on the corresponding first guide rail portion along the second direction, and a second driver for driving the suspension portion to slide on the second guide rail portion along the first direction; The first driver and the second driver are both communicatively connected to the controller; and / or, The suspension device further includes a measuring device communicatively connected to the controller, and the measuring device is configured to measure the initial position of the suspended object.

4. A test bench, Characterized in that, For testing an engine, the test bench includes the suspension device according to any one of claims 1-3, and the top of the suspension device is connected to a test bench frame.

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