Universal inclination test tool for fuel cell engine in high and low temperature environments

Abstract

The utility model relates to the technical field of engine performance detection, in particular to a universal inclination test tool for a fuel cell engine in high and low temperature environments, which comprises a bottom support member, a telescopic member, a jack and a top support member, the top support member is arranged above the bottom support member, and a mounting space is formed between the top support member and the bottom support member; the telescopic component and the jack are arranged in the mounting space, and the bottom fixing ends of the telescopic component and the jack are connected with the bottom supporting component; the top telescopic end of the jack is connected with the top supporting component, and the top telescopic end of the telescopic component is connected with the top supporting component or abuts against the bottom of the top supporting component. The top supporting component is used for installing the fuel electric engine, and under driving of the jack, the top supporting component and the fuel electric engine on the top supporting component can incline relative to the bottom supporting component. The testing tool is simple in structure, easy to maintain, low in cost, small in occupied space and more convenient to use.

Description

Technical Field

[0001] The present application relates to the technical field of engine performance detection, and in particular to a general tilt test tooling for a fuel cell engine in high and low temperature environments. Background Art

[0002] At present, a fuel cell engine is an engine system that converts chemical energy into electrical energy through an electrochemical reaction of hydrogen and oxygen. It can be used as a driving power source and auxiliary power for devices such as vehicles, aerospace, and underwater. As a core component of the above, it is crucial to ensure its performance in high and low temperature environments. Therefore, tilt tests need to be carried out in high and low temperature environments. Existing equipment is costly and huge in volume. Therefore, there is an urgent need to develop a general tilt test bench suitable for high and low temperatures in an environmental chamber to meet the test requirements of existing engines. Summary of the Utility Model

[0003] The purpose of the present application is to provide a general tilt test tooling for a fuel cell engine in high and low temperature environments, which to a certain extent solves the technical problem in the prior art that there is an urgent need to develop a general tilt test bench suitable for high and low temperatures in an environmental chamber to meet the test requirements of existing engines.

[0004] The present application provides a general tilt test tooling for a fuel cell engine in high and low temperature environments, including: a bottom support member, a telescopic member, a jack, and a top support member; wherein, the top support member is arranged above the bottom support member, and an installation space is formed between the two;

[0005] The telescopic member and the jack are both arranged in the installation space, and the bottom fixed ends of the telescopic member and the jack are both connected to the bottom support member; the top telescopic end of the jack is connected to the top support member, and the top telescopic end of the telescopic member is connected to the top support member or abuts against the bottom of the top support member;

[0006] The top support member is used to install a fuel electric engine, and under the drive of the jack, the top support member together with the fuel electric engine thereon can be tilted relative to the bottom support member.

[0007] In the above technical solution, further, the bottom support member is formed with a first installation portion, and the bottom fixed end of the jack is detachably connected to the first installation portion;

[0008] The top support member is formed with a second installation portion, and the top telescopic end of the jack is detachably connected to the second installation portion.

[0009] In any of the above technical solutions, further, the number of the first mounting portions is multiple, and they are sequentially arranged at intervals along the circumferential direction of the bottom support member;

[0010] The number of the second mounting portions is multiple, and they are sequentially arranged at intervals along the circumferential direction of the bottom support member, and the multiple second mounting portions correspond to the multiple first mounting portions one by one;

[0011] The number of the jacks is one, and the bottom fixed end of the jack is assembled with one of the first mounting portions, and the top telescopic end of the jack is assembled with the corresponding second mounting portion

[0012] In any of the above technical solutions, further, the bottom fixed end of the jack is detachably connected to the first mounting portion through a first fastening member.

[0013] In any of the above technical solutions, further, the top telescopic end of the jack is detachably connected to the second mounting portion through a second fastening member.

[0014] In any of the above technical solutions, further, a positioning groove is formed at the bottom of the top support member, a positioning protrusion is formed at the top of the telescopic member, and the positioning protrusion is installed in the positioning groove.

[0015] In any of the above technical solutions, further, the positioning protrusion is of a hemispherical structure, and the positioning groove is a hemispherical groove adapted to the positioning protrusion.

[0016] In any of the above technical solutions, further, the fuel cell engine general tilt test tooling under high and low temperature environments further includes slide rails and support members; wherein, the number of the slide rails is two, and they are respectively arranged on opposite sides of the top support member along a preset direction;

[0017] The number of the support members is two, and they are sequentially arranged along a direction perpendicular to the preset direction; sliders are arranged on both sides of any one of the support members along the preset direction, and the sliders are slidably connected to the corresponding slide rails; the support members are used to support the fuel electric engine.

[0018] In any of the above technical solutions, further, the sliders are detachably connected to the slide rails through a third fastening member.

[0019] In any of the above technical solutions, further, the fuel electric engine is detachably connected to the support members through a fourth fastening member;

[0020] Along the preset direction, the support member is formed with a plurality of mounting through holes arranged at intervals in sequence and is used for mounting the fourth fastening member.

[0021] In any of the above technical solutions, further, the general tilt test tooling for fuel cell engines in high and low temperature environments further includes a resisting member, which is fixed to the bottom support member and extends to the side above the top support member.

[0022] In any of the above technical solutions, further, the resisting member is detachably connected to the bottom support member through a third fastening member; the bottom support member is formed with a plurality of mounting positions for mounting the resisting member.

[0023] In any of the above technical solutions, further, the general tilt test tooling for fuel cell engines in high and low temperature environments further includes rollers and feet; wherein, the rollers and the feet are both arranged at the bottom of the bottom support member.

[0024] In any of the above technical solutions, further, the top support member is a square frame.

[0025] In any of the above technical solutions, further, the bottom support member is a flat plate.

[0026] In any of the above technical solutions, further, the jack is a mechanical jack.

[0027] In any of the above technical solutions, further, the telescopic member is a telescopic rod.

[0028] In any of the above technical solutions, further, the number of the telescopic members is multiple, and they are arranged at intervals in sequence around the circumference of the top support member.

[0029] Compared with the prior art, the beneficial effects of the present application are as follows:

[0030] The present application provides a novel general tilt test tooling for fuel cell engines in high and low temperature environments, which has a simple structure, is easy to maintain and has a low cost. Moreover, it occupies a small space and is more convenient to use. In addition, the device can be adaptively adjusted according to the size and detection angle of the fuel cell engine to be detected, and has stronger versatility. In addition, on the basis of a small and compact structure, the tooling is also equipped with rollers, which is convenient for moving and saves time and effort. Description of the Drawings

[0031] To more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0032] Figure 1 Structural schematic diagram of the general tilt test tooling for fuel cell engines in high and low temperature environments provided by an embodiment of the present application;

[0033] Figure 2 Another structural schematic diagram of the general tilt test tooling for fuel cell engines in high and low temperature environments provided by an embodiment of the present application.

[0034] Reference numerals:

[0035] 1 - Bottom support member, 2 - Telescopic member, 3 - Jack, 4 - Top support member, 5 - First mounting portion, 51 - First ear plate, 6 - Second mounting portion, 61 - Second ear plate, 7 - Slide rail, 8 - Support member, 81 - Mounting through hole, 9 - Slide block, 10 - Resistance member, 11 - Roller, 12 - Leg. Specific embodiments

[0036] The following will clearly and completely describe the technical solutions of the present application with reference to the drawings. Obviously, the described embodiments are some, but not all, of the embodiments of the present application.

[0037] The components of the embodiments of the present application usually described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the present application to be protected, but only represents the selected embodiments of the present application.

[0038] Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present application.

[0039] In the description of the present application, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application 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 a limitation of the present application. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0040] In the description of the present application, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" 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 an indirect connection through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0041] The following refers to Figure 1 and Figure 2 describe a general tilt test tooling for a fuel cell engine in high and low temperature environments according to some embodiments of the present application.

[0042] See Figure 1 and Figure 2 As shown, embodiments of the present application provide a general tilt test tooling for a fuel cell engine in high and low temperature environments, including: a bottom support member 1, a telescopic member 2, a jack 3, and a top support member 4; wherein, the top support member 4 is disposed above the bottom support member 1, and an installation space is formed therebetween;

[0043] Both the telescopic member 2 and the jack 3 are disposed in the installation space, and the bottom fixed ends of the telescopic member 2 and the jack 3 are both connected to the bottom support member 1; the top telescopic end of the jack 3 is connected to the top support member 4, and the top telescopic end of the telescopic member 2 is connected to the top support member 4 or abuts against the bottom of the top support member 4;

[0044] The top support member 4 is used to install the fuel electric engine, and under the drive of the jack 3, the top support member 4 together with the fuel electric engine thereon can be tilted relative to the bottom support member 1.

[0045] Based on the above-described structure, the usage process of the general tilt test tooling for a fuel cell engine provided by the present application is as follows: First, place this tooling in the detection chamber, then install the fuel electric engine on the top support member 4, and then use the jack 3 to drive the top support member 4 together with the fuel electric engine thereon to tilt relative to the bottom support member 1, and then perform high and low temperature performance detection. Of course, the operation sequence is not limited to the above and can be adjusted according to actual needs.

[0046] It can be seen that the present application provides a new general tilt test tooling for a fuel cell engine in high and low temperature environments, which has a simple structure, is easy to maintain and repair, has a low cost, occupies a small space, and is more convenient to use.

[0047] In this embodiment, preferably, asFigure 1 and Figure 2 As shown in Figure 2 , a first mounting portion 5 is formed on the bottom support member 1, and the bottom fixed end of the jack 3 is detachably connected to the first mounting portion 5;

[0048] A second mounting portion 6 is formed on the top support member 4, and the top telescopic end of the jack 3 is detachably connected to the second mounting portion 6.

[0049] Based on the structure described above, it can be seen that the jack 3, the first mounting portion 5, and the second mounting portion 6 all adopt a detachable connection method, which is convenient for installation and disassembly, especially for later maintenance.

[0050] In this embodiment, preferably, as Figure 1 and Figure 2 shown, the number of the first mounting portions 5 is multiple, and they are sequentially arranged at intervals along the circumferential direction of the bottom support member 1;

[0051] The number of the second mounting portions 6 is multiple, and they are sequentially arranged at intervals along the circumferential direction of the bottom support member 1, and the multiple second mounting portions 6 correspond to the multiple first mounting portions 5 one by one;

[0052] The number of the jacks 3 is one, and the bottom fixed end of the jack 3 is assembled with one of the first mounting portions 5, and the top telescopic end of the jack 3 is assembled with the corresponding second mounting portion 6.

[0053] According to the structure described above, a plurality of first mounting portions 5 are designed on the bottom support member 1, that is to say, a plurality of mounting positions are formed on the bottom support member 1. Furthermore, according to the required tilting orientation of the test, the jack 3 can be placed in different orientations, with better versatility and a wider application range.

[0054] Furthermore, preferably, as Figure 1 and Figure 2 shown, the first mounting portion 5 can be a single first ear plate 51, or two first ear plates 51 that are paired and arranged at intervals. Especially when the first mounting portion 5 is two first ear plates 51 that are paired and arranged at intervals, the jack 3 is installed between the two first ear plates 51 and is detachably connected to the two first ear plates 51 respectively. Furthermore, preferably, the jack 3 and the first ear plate 51 are detachably connected by a first fastening member such as a screw or a bolt. Of course, it is not limited to this. In addition, the structure of the first mounting portion 5 is not limited to the above-mentioned ear plate, and can also be other structures, such as a mounting seat, etc.

[0055] Furthermore, preferably, as Figure 1 and Figure 2The number of the first mounting parts 5 shown is four, and they are sequentially arranged at intervals around the circumferential direction of the top support member 4. Of course, it is not limited to this. The number of the first mounting parts 5 can also be less than four, such as one, two, or three, etc., or the number of the first mounting parts 5 can be greater than four, such as five, six, or seven, etc., which is specifically designed according to actual needs.

[0056] Further, preferably, as Figure 1 and Figure 2 shown, the first mounting part 5 can be welded to the bottom support member 1. Of course, it is not limited to this.

[0057] Further, preferably, as Figure 1 and Figure 2 shown, the second mounting part 6 can be a single second ear plate 61, or two second ear plates 61 arranged in pairs and at intervals. Especially when the second mounting part 6 is two second ear plates 61 arranged in pairs and at intervals, the jack 3 is installed between the two second ear plates 61 and is detachably connected to the two second ear plates 61 respectively. Further, preferably, the jack 3 is detachably connected to the second ear plate 61 through a second fastening member such as a screw or a bolt. Of course, it is not limited to this. In addition, the structure of the first mounting part 5 is not limited to the above-mentioned ear plate, and can also be other structures, such as a mounting seat, etc.

[0058] Further, preferably, as Figure 1 and Figure 2 shown, the number of the second mounting parts 6 is four, and they are sequentially arranged at intervals around the circumferential direction of the top support member 4. Of course, it is not limited to this. The number of the second mounting parts 6 can also be less than four, such as one, two, or three, etc., or the number of the second mounting parts 6 can be greater than four, such as five, six, or seven, etc., which is specifically designed according to actual needs.

[0059] Further, preferably, as Figure 1 and Figure 2 shown, the second mounting part 6 can be welded to the bottom support member 1. Of course, it is not limited to this.

[0060] In this embodiment, preferably, a positioning groove is formed at the bottom of the top support member 4, and a positioning convex part is formed at the top of the telescopic member 2, and the positioning convex part is installed in the positioning groove (not shown in the figure).

[0061] According to the structure described above, by inserting the positioning convex part into the positioning groove, the positioning effect on the top support member 4 is realized, so that the top support member 4 and the telescopic member 2 are more stably matched, and problems such as slippage are not likely to occur.

[0062] Further, preferably, the positioning convex part is of a hemispherical structure, and the positioning groove is a hemispherical groove adapted to the positioning convex part.

[0063] According to the structure described above, it can be known that the positioning protrusion and the positioning groove are in rolling fit. While ensuring the positioning effect, problems such as jamming will not occur, and the structure is more reliable.

[0064] It should be noted that: the structures of the positioning protrusion and the positioning groove are not limited to the above, and other structures can also be adopted. For example: the positioning protrusion and the positioning groove can be a square block and a square groove respectively, etc., and are specifically designed according to actual needs.

[0065] In this embodiment, preferably, as Figure 1 and Figure 2 shown, the general tilt test tooling for fuel cell engines in high and low temperature environments further includes a slide rail 7 and a support member 8; wherein, the number of the slide rails 7 is two, and they are respectively arranged on opposite sides of the top support member 4 along a preset direction;

[0066] The number of the support members 8 is two, and they are sequentially arranged along a direction perpendicular to the preset direction; on both sides of any support member 8 along the preset direction, there are sliders 9 arranged, and the sliders 9 are slidably connected to the corresponding slide rails 7; the support member 8 is used to support the fuel electric engine, and preferably, the fuel electric engine can be installed on the top of the support member 8.

[0067] According to the structure described above, through the cooperation of the slider 9 and the slide rail 7, the distance between the two support members 8 can be adjusted, and then different sizes of fuel electric engines can be adapted, and then the stable support of fuel electric engines of different sizes can be realized, the support effect is better, and the overall structure is more stable.

[0068] In this embodiment, preferably, as Figure 1 and Figure 2 shown, the slider 9 and the slide rail 7 are detachably connected by a third fastening member such as a screw or a bolt (the third fastening member is not shown).

[0069] According to the structure described above, when the slider 9 slides relative to the slide rail 7 to a specified position, the slider 9 and the slide rail 7 can be locked by a third fastening member such as a screw or a bolt, that is to say, the support member 8 is kept stationary, and then the function of stably supporting the fuel electric engine can be achieved.

[0070] Furthermore, preferably, a plurality of mounting holes are formed in the slide rail 7 along its length direction for mounting the third fastening member.

[0071] In this embodiment, preferably, as Figure 1 and Figure 2 shown, the fuel electric engine and the support member 8 are detachably connected by a fourth fastening member such as a screw or a bolt (both the fuel electric engine and the fourth fastening member are not shown);

[0072] Along a preset direction, the support member 8 is formed with a plurality of mounting through holes 81 arranged at intervals in sequence, and is used for mounting the fourth fastening member.

[0073] According to the structure described above, the fuel electric engine and the support member 8 adopt a detachable structure, which is convenient for installation and disassembly. Moreover, a plurality of mounting through holes 81 are designed on the support member 8, so that it can be fixed at multiple places, and the fixing position can also be selected according to actual needs, with a wider scope of application.

[0074] In this embodiment, preferably, as Figure 1 and Figure 2 shown, the general-purpose tilt test tooling for fuel cell engines in high and low temperature environments further includes a resisting member 10, which is fixed to the bottom support member 1 and extends to the side above the top support member 4.

[0075] According to the structure described above, when the top support member 4 together with the fuel electric engine thereon can be tilted relative to the bottom support member 1 under the drive of the jack 3, the resisting member 10 can play a role in resisting and supporting the fuel electric engine, so that the fuel electric engine is relatively stable in the tilted state.

[0076] Furthermore, preferably, the resisting member 10 can be selected as a frame structure, with low material cost.

[0077] In this embodiment, preferably, as Figure 1 and Figure 2 shown, the resisting member 10 and the bottom support member 1 are detachably connected by a fifth fastening member (the fifth fastening member is not shown); the bottom support member 1 is formed with a plurality of mounting positions for mounting the resisting member 10.

[0078] According to the structure described above, according to the tilt angle of the fuel electric engine, the resisting member 10 can be moved to the side where the fuel electric engine is at a lower position, so as to play a role in protecting and supporting the fuel electric engine, with stronger practicability and a wider scope of application.

[0079] It should be noted that: not only is it limited to the detachable connection between the resisting member 10 and the bottom support member 1 by the fifth fastening member, but the resisting member 10 can also be welded to the bottom support member 1.

[0080] In this embodiment, preferably, as Figure 1 and Figure 2 shown, the general-purpose tilt test tooling for fuel cell engines in high and low temperature environments further includes rollers 11 and feet 12; among them, the rollers 11 and the feet 12 are both arranged at the bottom of the bottom support member 1.

[0081] According to the structure described above, the tooling can be moved into or out of the test chamber by means of the roller 11, or moved to other designated positions. The operation is simple, convenient, time-saving and labor-saving. Moreover, after the tooling is moved to the designated position, the tooling can be fixed by the support feet 12, making the tooling more stable.

[0082] Further, preferably, the number of rollers 11 is four, and they are evenly distributed at the bottom of the bottom support member 1. Of course, this is not the only limitation.

[0083] Further, preferably, the number of support feet 12 is four, and they are evenly distributed at the bottom of the bottom support member 1. Of course, this is not the only limitation.

[0084] In this embodiment, preferably, as Figure 1 and Figure 2 shown, the top support member 4 is a square frame.

[0085] According to the structure described above, the top support member 4 adopts the structure of a square frame, which is light in weight while meeting the support function, contributing to lightweight design and helping to reduce material costs.

[0086] It should be noted that: the structure of the top support member 4 is not limited to this, and other structures can also be selected, such as: flat plates, etc., which are specifically designed according to actual needs.

[0087] In this embodiment, preferably, as Figure 1 and Figure 2 shown, the bottom support member 1 is a flat plate.

[0088] According to the structure described above, the bottom support member 1 is selected to have a flat plate structure, which gives it certain strength and stiffness, can be used as a base, and has sufficient installation area for installing other components. Of course, the structure of the bottom support member 1 is not limited to the above.

[0089] In this embodiment, preferably, as Figure 1 and Figure 2 shown, the jack 3 is a mechanical jack, that is to say, it does not have a power source. For example, the jack 3 is not an electric jack or a hydraulic jack. For example, a manual jack can be selected. After being manually driven, the jack 3 can maintain this state by itself and will not fail like an electric jack or a hydraulic jack in high-temperature or low-temperature environments, thus improving the accuracy of the test.

[0090] In this embodiment, preferably, the telescopic member 2 is a telescopic rod.

[0091] According to the structure described above, the telescopic member 2 can be selected as a telescopic rod commonly used in the prior art, which can automatically telescopically adjust with the inclination of the top support member 4. Preferably, a telescopic rod with a self-locking function can be selected, which can be locked after the adjustment is completed, making the overall structure more stable.

[0092] Of course, it is not limited to this. The telescopic member 2 can also be selected with other structures. For example, the telescopic member 2 can include a support sleeve, a first-stage screw rod, a second-stage screw rod, and a nut. Among them, the fixed sleeve is fixed on the bottom support member 1, the first-stage screw rod is fixedly inserted into the fixed sleeve, the first-stage screw rod is provided with a threaded through hole, the second-stage screw rod is threadedly connected to this threaded through hole, the nut is threadedly connected to the outside of the first-stage screw rod, and when it is tightened to abut against the top of the first-stage screw rod, the first-stage screw rod is fixed. Then, when the angle of the top support member 4 needs to be adjusted, the nut needs to be loosened and the first-stage screw rod is adjusted to cooperate with the jack 3 for adjustment.

[0093] In this embodiment, preferably, as Figure 1 and Figure 2 shown, the number of the telescopic members 2 is multiple, and they are sequentially and spaced apart circumferentially around the top support member 4.

[0094] According to the structure described above, using multiple telescopic members 2 can support the top support member 4 and the fuel cell engine thereon more stably, making the fuel cell engine more stable during the test process.

[0095] Furthermore, preferably, the number of the telescopic members 2 is four, and they are sequentially and spaced apart circumferentially around the top support member 4, and preferably they are sequentially and evenly spaced apart.

[0096] It should be noted that: the number of the telescopic members 2 is not limited to this, and it can also be one, two, or three. Or the number of the telescopic members 2 is greater than four, such as five, six, etc., which is specifically designed according to actual needs.

[0097] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A universal tilt test tool for fuel cell engines in high and low temperature environments, characterized in that: include: A bottom support member, a telescopic member, a jack and a top support member; wherein the top support member is arranged above the bottom support member, and an installation space is formed between the two; The telescopic member and the jack are both arranged in the installation space, and the bottom fixed ends of the telescopic member and the jack are both connected to the bottom supporting member; the top telescopic end of the jack is connected to the top supporting member, and the top telescopic end of the telescopic member is connected to the top supporting member or abuts against the bottom of the top supporting member; The top supporting member is used to install the fuel electric engine, and the top supporting member together with the fuel electric engine thereon can be tilted relative to the bottom supporting member under the driving of the jack.

2. The universal tilt test fixture for fuel cell engines under high and low temperature environments according to claim 1, characterized in that: The bottom supporting member is formed with a first mounting portion, and the bottom fixing end of the jack is detachably connected to the first mounting portion; The top supporting member is formed with a second mounting portion, and the top telescopic end of the jack is detachably connected to the second mounting portion.

3. The universal tilt test fixture for fuel cell engines under high and low temperature environments according to claim 2, characterized in that: The first mounting portions are multiple in number and are sequentially spaced along the circumference of the bottom supporting member; The second mounting portions are multiple in number and are sequentially spaced along the circumference of the bottom support member, and the multiple second mounting portions correspond one-to-one to the multiple first mounting portions; The number of the jack is one, and the bottom fixed end of the jack is assembled with one of the first mounting parts, and the top telescopic end of the jack is assembled with the corresponding second mounting part; and / or The bottom fixed end of the jack is detachably connected to the first mounting portion via a first fastening member; and / or The top telescopic end of the jack is detachably connected to the second mounting portion via a second fastening member.

4. The universal tilt test fixture for fuel cell engines under high and low temperature environments according to claim 1, characterized in that: A positioning groove is formed at the bottom of the top supporting member, a positioning protrusion is formed at the top of the telescopic member, and the positioning protrusion is installed in the positioning groove.

5. The universal tilt test fixture for fuel cell engines under high and low temperature environments according to claim 4, characterized in that: The positioning protrusion is a hemispherical structure, and the positioning groove is a hemispherical groove matched with the positioning protrusion.

6. The universal tilt test fixture for fuel cell engines under high and low temperature environments according to claim 1, characterized in that: The universal tilt test fixture for fuel cell engines in high and low temperature environments also includes a slide rail and a support member; wherein the number of the slide rails is two, and they are respectively arranged on opposite sides of the top support member along a preset direction; The number of the supporting members is two, and they are arranged sequentially along a direction perpendicular to the preset direction; sliders are provided on both sides of any supporting member along the preset direction, and the sliders are slidably connected to the corresponding slide rails; the supporting member is used to support the fuel electric engine.

7. The universal tilt test fixture for fuel cell engines under high and low temperature environments according to claim 6, characterized in that: The slider is detachably connected to the slide rail via a third fastening member; and / or The fuel electric engine is detachably connected to the support member via a fourth fastening member; Along the preset direction, the support member is formed with a plurality of mounting through holes which are sequentially arranged at intervals and are used for mounting the fourth fastening member.

8. The universal tilt test fixture for fuel cell engines under high and low temperature environments according to claim 1, characterized in that: The universal tilt test fixture for fuel cell engines under high and low temperature environments further includes a resisting member, which is fixed to the bottom supporting member and extends to the upper side of the top supporting member.

9. The universal tilt test fixture for fuel cell engines under high and low temperature environments according to claim 8, characterized in that: The retaining member is detachably connected to the bottom supporting member via a fifth fastening member; the bottom supporting member is formed with a plurality of installation positions for installing the retaining member.

10. The universal tilt test fixture for fuel cell engines under high and low temperature environments according to any one of claims 1 to 9, characterized in that: The universal tilt test fixture for fuel cell engines in high and low temperature environments further includes rollers and legs; wherein the rollers and legs are both arranged at the bottom of the bottom support member; and / or The top support member is a square frame; and / or The bottom supporting member is a flat plate; and / or The jack is a mechanical jack; and / or The telescopic member is a telescopic rod; and / or The number of the telescopic members is plural and they are sequentially spaced around the circumference of the top supporting member.

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