Airplane auxiliary power device generator test run wire harness supporting tool

Abstract

The utility model relates to the technical field of airplane auxiliary power devices, and discloses an airplane auxiliary power device generator test run wire harness supporting tool which comprises a base, a first supporting tube, a second supporting tube, a first fastener, a first wire harness supporting beam, a third supporting tube, a second fastener and a second wire harness supporting beam. The base is provided with a plurality of clamping parts arranged at intervals in the first direction, and the clamping parts are used for being connected with an oil baffle plate of a test run bracket in a clamped mode. The bottom end of the first supporting pipe is fixedly arranged on the base. The bottom end of the second supporting pipe is inserted into the top end of the first supporting pipe. The first fastening piece is arranged on the first supporting pipe or the second supporting pipe. The first wire harness supporting beam is fixedly arranged on the second supporting pipe. The bottom end of the third supporting pipe is inserted into the top end of the second supporting pipe. The second fastening piece is arranged on the second supporting pipe or the third supporting pipe. The second wire harness supporting beam is fixedly arranged on the third supporting pipe.

Description

Technical Field

[0001] The utility model relates to the technical field of aircraft auxiliary power devices, in particular to a test wire harness support tool for a generator of an aircraft auxiliary power device. Background Art

[0002] The auxiliary power unit is a power unit on the aircraft other than the main engine. Its English name is Auxiliary Power Unit, or APU for short. Its function is to independently provide the aircraft with air conditioning bleed air and power supply, and to provide compressed air to assist the engine start. It is an important and indispensable system on the aircraft. It is the most complex and precise device on the aircraft except the main engine. The APS5000A model APU is an auxiliary power unit manufactured by PWC manufacturer for Boeing 787 aircraft. This model APU is specially designed for Boeing 787 aircraft. This model APU has a large volume and weight and is called a new generation APU. The APS5000A model APU cancels the bleed air function in accordance with the change in the aircraft's control mode and strengthens its power generation capacity. Therefore, two variable frequency starting generators with the same function are designed and installed on the APU gearbox. In order to meet the safety requirements under the condition of increased power and ensure the safety and stability of power generation during its operation or test run, higher requirements are made on the specifications and dimensions of the generator wiring harness during the test bench design stage. Since the wiring harness of the vehicle generator is not designed for a single APU model, the wiring harness is too long in the case of redundant design. In addition, in order to meet its high-power operation requirements, the diameter of the wiring harness is thicker than other models. During the installation of the wiring harness, the test personnel found that the generator terminal was bent due to gravity after the thick wiring harness was installed, which seriously affected the safety of the test and the collection and monitoring of power generation data.

[0003] The existing solution to the problem of studs being easily bent during generator testing is to shape four wooden blocks to a suitable size, use the generator itself as a support point, and use the four wooden blocks to raise the generator wire harness to a suitable height to offset the stress. However, this support method will cause the support point to be unstable when the engine vibrates at high frequency, and the wooden blocks will loosen and fall. The huge gravity of the falling wire harness can easily cause damage to the generator studs.

[0004] Therefore, there is an urgent need for an aircraft auxiliary power unit generator test wire harness support tooling to solve the above problems. Utility Model Content

[0005] The utility model aims to provide a test wire harness support tool for an aircraft auxiliary power unit generator, which supports various wire harnesses during the test of the aircraft auxiliary power unit generator and is not easy to fall off during the test.

[0006] In order to achieve the above-mentioned purpose, the utility model provides an aircraft auxiliary power unit generator test wire harness support tooling, comprising:

[0007] A base, on which a plurality of clamping parts are arranged at intervals along a first direction, and the clamping parts are used to clamp with the oil baffle plate of the test run bracket;

[0008] A first supporting tube, the bottom end of which is fixedly disposed on the base;

[0009] A second support tube, the bottom end of which is inserted into the top end of the first support tube;

[0010] a first fastener, which is disposed on the first support tube or the second support tube and is used to adjust the maximum insertion depth between the first support tube and the second support tube;

[0011] A first wire harness support beam, which is fixedly disposed on the second support tube, and the second support tube equally divides the first wire harness support beam into a first left wire harness support beam and a first right wire harness support beam;

[0012] A third support tube, the bottom end of which is inserted into the top end of the second support tube;

[0013] a second fastener, which is disposed on the second support tube or the third support tube and is used to adjust the maximum insertion depth between the second support tube and the third support tube;

[0014] The second wire harness support beam is fixedly disposed on the third support tube, and the third support tube equally divides the second wire harness support beam into a second left wire harness support beam and a second right wire harness support beam.

[0015] As an improvement of the above technical solution, a clamping groove is provided at the bottom of the clamping portion, and the top end of the oil baffle plate can be inserted into the clamping groove so that the base is clamped on the oil baffle plate.

[0016] As an improvement of the above technical solution, the clamping portion includes:

[0017] Two side plates, the two side plates are spaced apart along a second direction perpendicular to the first direction;

[0018] The top plate is arranged at the top ends of the two side plates and is fixedly connected to the two side plates. The two side plates and the top plate are surrounded to form the clamping groove.

[0019] As an improvement of the above technical solution, the base includes:

[0020] A supporting crossbeam, the bottom end of the first supporting tube is fixedly arranged on the supporting crossbeam, and the first wiring harness supporting beam and the second wiring harness supporting beam are both arranged parallel to the supporting crossbeam;

[0021] Two longitudinal beams, the two longitudinal beams are respectively fixedly arranged at the two ends of the supporting cross beam, and are both arranged perpendicularly to the supporting cross beam, the longitudinal beam and the supporting cross beam are both arranged perpendicularly to the first supporting tube, the first end of the longitudinal beam is provided with the clamping part, and the longitudinal beam is fixedly connected to one of the side plates of the clamping part.

[0022] As an improvement of the above technical solution, the longitudinal beam is arranged perpendicular to the side plate.

[0023] As an improvement of the above technical solution, the first support tube, the second support tube and the third support tube are coaxially arranged.

[0024] As an improvement of the above technical solution, the supporting crossbeam is arranged at one end of the longitudinal beam close to the clamping portion.

[0025] As an improvement of the above technical solution, the second support tube is inserted into the first support tube, the first fastener is arranged on the second support tube, the third support tube is inserted into the second support tube, and the second fastener is arranged on the third support tube.

[0026] As an improvement of the above technical solution, the first fastener comprises:

[0027] A first hoop, which is sleeved on the second support tube, wherein the bottom end of the first hoop abuts against the top end surface of the first support tube;

[0028] Two first connecting plates, the first hoop is provided with an opening, and the two first connecting plates are respectively fixedly arranged on both sides of the opening of the first hoop;

[0029] A first connecting bolt, wherein the two first connecting plates are both provided with connecting holes, and the first connecting bolt passes through the connecting holes on the two first connecting plates;

[0030] The first connecting nut is threadedly connected to the threaded end of the first connecting bolt.

[0031] As an improvement of the above technical solution, the second fastener comprises:

[0032] A second hoop, which is sleeved on the third support tube, and the bottom end of the second hoop abuts against the top end surface of the second support tube;

[0033] Two second connecting plates, the second hoop is provided with an opening, and the two second connecting plates are respectively fixedly arranged on both sides of the opening of the second hoop;

[0034] A second connecting bolt, wherein the two second connecting plates are each provided with a connecting hole, and the second connecting bolt passes through the connecting holes on the two second connecting plates;

[0035] The second connecting nut is threadedly connected to the threaded end of the second connecting bolt.

[0036] Compared with the prior art, the utility model has the following beneficial effects:

[0037] The aircraft auxiliary power unit generator test wire harness support tooling of the utility model can be conveniently installed on the test bracket through the clamping part on the base and the oil baffle plate of the test bracket, and the connection is stable, and the aircraft auxiliary power unit generator test wire harness support tooling is not easy to fall off during the test. The first left wire harness support beam is used to support two wire harnesses of one of the generators of the aircraft auxiliary power unit, the second left wire harness support beam is used to support the other two wire harnesses of the engine, the first right wire harness support beam is used to support the two wire harnesses of another generator of the aircraft auxiliary power unit, and the second right support beam is used to support the other two wire harnesses of the generator. By adjusting the insertion depth between the bottom end of the second support tube and the top end of the first support tube, the height of the first harness support beam can be adjusted, thereby adjusting the height of each wire harness supported on the first harness support beam. The insertion depth is fixed by the first fastener, so that the pins of each wire harness supported on the first harness support beam (the part of the wire harness used to connect to the terminal) and the corresponding terminal can be kept in a better force position to avoid bending of the pins of each wire harness supported on the first harness support beam and the corresponding terminal during the test run. Similarly, by adjusting the insertion depth between the bottom end of the third support tube and the top end of the second support tube, the height of the second harness support beam can be adjusted, thereby adjusting the height of each wire harness supported on the second harness support beam. The insertion depth is fixed by the second fastener, so that the pins of each wire harness supported on the second harness support beam and the corresponding terminal can be kept in a better force position to avoid bending of the corresponding terminal of each wire harness supported on the first harness support beam during the test run. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 This is a schematic diagram of the structure of the aircraft auxiliary power unit generator test wire harness support tooling provided by the embodiment of the utility model Figure 1 ;

[0039] Figure 2 This is a schematic diagram of the structure of the aircraft auxiliary power unit generator test wire harness support tooling provided by the embodiment of the utility model Figure 2 ;

[0040] Figure 3 yes Figure 2 The enlarged view of point A in the middle;

[0041] Figure 4It is a structural schematic diagram of a first fastener of a test wire harness support tooling for an aircraft auxiliary power unit generator provided by an embodiment of the utility model;

[0042] Figure 5 The utility model is a schematic diagram of the structure of the second fastener of the aircraft auxiliary power unit generator test wire harness support tooling provided by the embodiment of the utility model.

[0043] In the figure:

[0044] 1. base; 11. clamping part; 111. clamping groove; 112. side plate; 113. top plate; 12. supporting beam; 13. longitudinal beam;

[0045] 2. The first support tube;

[0046] 3. The second support tube;

[0047] 4. first fastener; 41. first hoop; 42. first connecting plate;

[0048] 5. First wiring harness support beam; 51. First left wiring harness support beam; 52. First right wiring harness support beam;

[0049] 6. The third support tube;

[0050] 7. second fastener; 71. second hoop; 72. second connecting plate;

[0051] 8. Second wiring harness support beam; 81. Second left wiring harness support beam; 82. Second right wiring harness support beam. DETAILED DESCRIPTION

[0052] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0053] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" 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, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0054] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0055] In the description of this embodiment, the terms "upper", "lower", "right" and other directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0056] like Figure 1 - Figure 5 As shown, this embodiment provides an aircraft auxiliary power unit generator test wire harness support tooling, for example, for the test of the gearbox generator of the APS5000A model APU, and the aircraft auxiliary power unit generator test wire harness support tooling includes a base 1, a first support tube 2, a second support tube 3, a first fastener 4, a first harness support beam 5, a third support tube 6, a second fastener 7, and a second harness support beam 8. The base 1 is provided with a plurality of clamping parts 11 arranged at intervals along the first direction, and the clamping parts 11 are used to clamp with the oil baffle of the test bracket. The bottom end of the first support tube 2 is fixedly arranged on the base 1. The bottom end of the second support tube 3 is inserted into the top of the first support tube 2. The first fastener 4 is arranged on the first support tube 2 or the second support tube 3, and is used to adjust the maximum insertion depth between the first support tube 2 and the second support tube 3. The first harness support beam 5 is fixedly arranged on the second support tube 3, and the second support tube 3 divides the first harness support beam 5 into a first left harness support beam 51 and a first right harness support beam 52. The bottom end of the third support tube 6 is inserted into the top end of the second support tube 3. The second fastener 7 is provided on the second support tube 3 or the third support tube 6, and is used to adjust the maximum insertion depth between the second support tube 3 and the third support tube 6. The second wire harness support beam 8 is fixedly provided on the third support tube 6, and the third support tube 6 divides the second wire harness support beam 8 into a second left wire harness support beam 81 and a second right wire harness support beam 82. In this embodiment, two clamping parts 11 are provided, and the second wire harness support beam 8 is fixedly provided at the top end of the third support tube 6. The first wire harness support beam 5 is fixedly provided at the upper part of the second support tube 3.

[0057] The aircraft auxiliary power unit generator test wire harness support tooling provided in this embodiment is connected to the oil baffle of the test bracket through the clamping portion 11 on the base 1, so that the aircraft auxiliary power unit generator test wire harness support tooling can be easily installed on the test bracket, and the connection is stable, and the aircraft auxiliary power unit generator test wire harness support tooling is not easy to fall off during the test. The first left wire harness support beam 51 is used to support two wire harnesses of one of the generators of the aircraft auxiliary power unit, the second left wire harness support beam 81 is used to support the other two wire harnesses of the engine, the first right wire harness support beam 52 is used to support the two wire harnesses of another generator of the aircraft auxiliary power unit, and the second right support beam is used to support the other two wire harnesses of the generator. By adjusting the insertion depth between the bottom end of the second support tube 3 and the top end of the first support tube 2, the height of the first harness support beam 5 can be adjusted, thereby adjusting the height of each wire harness supported on the first harness support beam 5. The insertion depth is fixed by the first fastener 4, so that the pins of each wire harness supported on the first harness support beam 5 (the part of the wire harness used to connect to the terminal) and the corresponding terminal can be kept in a better force position, so as to avoid the terminal corresponding to each wire harness supported on the first harness support beam 5 from bending during the test. Similarly, by adjusting the insertion depth between the bottom end of the third support tube 6 and the top end of the second support tube 3, the height of the second harness support beam 8 can be adjusted, thereby adjusting the height of each wire harness supported on the second harness support beam 8. The insertion depth is fixed by the second fastener 7, so that the pins of each wire harness supported on the second harness support beam 8 and the corresponding terminal can be kept in a better force position, so as to avoid the terminal corresponding to each wire harness supported on the first harness support beam 5 from bending during the test.

[0058] Optionally, the first wire harness support beam 5 and the second wire harness support beam 8 are both covered with an insulating layer to achieve insulation between the aircraft auxiliary power unit generator test wire harness support tooling and each wire harness.

[0059] Alternatively, if Figure 1 - Figure 3 As shown, a clamping groove 111 is provided at the bottom of the clamping portion 11, and the top of the oil baffle plate can be inserted into the clamping groove 111 so that the base 1 is clamped on the oil baffle plate. The depth of the clamping groove 111 is specifically designed according to the height of the oil baffle plate at the edge of the test carriage platform.

[0060] Furthermore, if Figure 1 - Figure 3As shown, the clamping portion 11 includes a top plate 113 and two side plates 112. The two side plates 112 are spaced apart along a second direction perpendicular to the first direction. The top plate 113 is disposed at the top ends of the two side plates 112 and is fixedly connected to the two side plates 112. The two side plates 112 and the top plate 113 are surrounded to form a clamping groove 111.

[0061] Alternatively, if Figure 1 - Figure 3 As shown, the base 1 includes a support beam 12 and two longitudinal beams 13, and the support beam 12 extends along a first direction. The bottom end of the first support tube 2 is fixedly arranged on the support beam 12, and the first support tube 2 is located in the middle of the length direction of the support beam 12, and the first harness support beam 5 and the second harness support beam 8 are both arranged parallel to the support beam 12. The two longitudinal beams 13 are respectively fixedly arranged at both ends of the support beam 12, and are both arranged perpendicularly to the support beam 12. The longitudinal beam 13 and the support beam 12 are both arranged perpendicularly to the first support tube 2, and the first end of the longitudinal beam 13 is provided with a clamping portion 11, and the longitudinal beam 13 is fixedly connected to one of the side plates 112 of the clamping portion 11.

[0062] Furthermore, if Figure 1 - Figure 3 As shown, the longitudinal beam 13 and the side plate 112 are arranged perpendicularly, so that the clamping portion 11 can better support the base 1. In other words, the two longitudinal beams 13 extend along the second direction.

[0063] Alternatively, if Figure 1 - Figure 3 As shown, the first support tube 2 , the second support tube 3 and the third support tube 6 are coaxially arranged, so that the pressure of the wire bundle on the first wire harness support beam 5 and the second wire harness support beam 8 can be better transmitted to the base 1 .

[0064] Alternatively, if Figure 1 - Figure 3 As shown, the supporting cross beam 12 is arranged at one end of the longitudinal beam 13 close to the clamping portion 11 to improve the supporting effect of the clamping portion 11 on the support weight.

[0065] In this embodiment, if Figure 1 - Figure 3 As shown, the second support tube 3 is inserted into the first support tube 2 , the first fastener 4 is arranged on the second support tube 3 , the third support tube 6 is inserted into the second support tube 3 , and the second fastener 7 is arranged on the third support tube 6 .

[0066] Alternatively, if Figure 1 - Figure 5As shown, the first fastener 4 includes a first hoop 41, two first connecting plates 42, a first connecting bolt and a first connecting nut. The first hoop 41 is sleeved on the second support tube 3, and the bottom end of the first hoop 41 abuts against the top end surface of the first support tube 2. The first hoop 41 is provided with an opening, and the two first connecting plates 42 are fixedly provided on both sides of the opening of the first hoop 41. The two first connecting plates 42 are both provided with connecting holes, and the first connecting bolt passes through the connecting holes on the two first connecting plates 42. The first connecting nut is threadedly connected to the threaded end of the first connecting bolt. The two first connecting plates 42 are fastened by the cooperation of the first bolt and the first nut, so that the two first connecting plates 42 are close to each other, thereby driving the inner diameter of the first hoop 41 to be reduced, and then the first hoop 41 is fastened to the second support tube 3. The first hoop 41 is abutted against the top end surface of the first support tube 2, so that the second support tube 3 can be prevented from being further inserted into the first support tube 2. Under the action of the gravity of the wire harness, the first hoop 41 is tightly abutted against the first support tube 2, so that the height of the first harness support beam 5 is kept stable. In this embodiment, two first connecting bolts are provided, and the first connecting nuts and the first connecting bolts are provided one by one.

[0067] Alternatively, if Figure 1 - Figure 5 As shown, the second fastener 7 includes a second hoop 71, two second connecting plates 72, a second connecting bolt and a second connecting nut. The second hoop 71 is sleeved on the third support tube 6, and the bottom end of the second hoop 71 abuts against the top end surface of the second support tube 3. The second hoop 71 is provided with an opening, and the two second connecting plates 72 are respectively fixedly provided on both sides of the opening of the second hoop 71. The two second connecting plates 72 are both provided with connecting holes, and the second connecting bolt passes through the connecting holes on the two second connecting plates 72. The second connecting nut is threadedly connected to the threaded end of the second connecting bolt. The two second connecting plates 72 are fastened by the cooperation of the second bolt and the second nut, so that the two second connecting plates 72 are close to each other, thereby driving the inner diameter of the second hoop 71 to be reduced, and then the second hoop 71 is fastened to the third support tube 6. The second hoop 71 is abutted against the top end surface of the second support tube 3, so that the third support tube 6 can be prevented from being further inserted into the second support tube 3. Under the action of the gravity of the wire harness, the second hoop 71 is closely abutted against the second support tube 3, so that the height of the second harness support beam 8 is kept stable. In this embodiment, two second connecting bolts are provided, and the second connecting nuts are provided one by one with the second connecting bolts.

[0068] The installation process of the utility model is:

[0069] First, the base 1 is clamped onto the oil baffle plate of the test run bracket through the clamping groove 111 .

[0070] Adjust the second support tube 3 to a suitable height (sufficient to support the corresponding wire harness), move the first fastener 4 to abut against the top end surface of the first support tube 2, and lock the first fastener 4. Install the 2 and N pins of the No. 1 generator and the 2 and N pins of the No. 2 generator to the corresponding terminals. Support the 2 and N pins of the No. 1 generator through the first left harness support beam 51, and support the 2 and N pins of the No. 2 generator through the first right harness support beam 52.

[0071] Adjust the third support tube 6 to a suitable height (sufficient to support the corresponding wire harness), move the second fastener 7 to abut against the top end surface of the second support tube 3, and lock the first fastener 4. Install pins 1 and 3 of generator No. 1 and pins 1 and 3 of generator No. 2. Support pins 1 and 3 of generator No. 1 through the second left harness support beam 81, and support pins 1 and 3 of generator No. 2 through the second right harness support beam 82.

[0072] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principle of the present invention. These improvements and substitutions should also be regarded as the protection scope of the present invention.

Claims

1. An aircraft auxiliary power unit generator test wire harness support tool, characterized in that: include: A base (1) is provided with a plurality of clamping portions (11) arranged at intervals along a first direction, the clamping portions (11) being used for clamping with an oil baffle plate of a test run bracket; A first support tube (2), the bottom end of which is fixedly arranged on the base (1); A second support tube (3), the bottom end of which is inserted into the top end of the first support tube (2); a first fastener (4), which is arranged on the first support tube (2) or the second support tube (3) and is used to adjust the maximum insertion depth between the first support tube (2) and the second support tube (3); A first wire harness support beam (5) fixedly arranged on the second support tube (3), wherein the second support tube (3) equally divides the first wire harness support beam (5) into a first left wire harness support beam (51) and a first right wire harness support beam (52); A third support tube (6), the bottom end of which is inserted into the top end of the second support tube (3); a second fastener (7), which is arranged on the second support tube (3) or the third support tube (6) and is used to adjust the maximum insertion depth between the second support tube (3) and the third support tube (6); The second wire harness support beam (8) is fixedly arranged on the third support tube (6), and the third support tube (6) divides the second wire harness support beam (8) into a second left wire harness support beam (81) and a second right wire harness support beam (82).

2. The aircraft auxiliary power unit generator test wire harness support tooling according to claim 1, characterized in that: A clamping groove (111) is provided at the bottom of the clamping portion (11), and the top end of the oil baffle plate can be inserted into the clamping groove (111) so that the base (1) is clamped onto the oil baffle plate.

3. The aircraft auxiliary power unit generator test wire harness support tooling according to claim 2, characterized in that: The clamping portion (11) comprises: Two side plates (112), the two side plates (112) being arranged at intervals along a second direction perpendicular to the first direction; The top plate (113) is arranged at the top ends of the two side plates (112) and is fixedly connected to the two side plates (112). The two side plates (112) and the top plate (113) are arranged to form the clamping groove (111).

4. The aircraft auxiliary power unit generator test wire harness support tooling according to claim 3, characterized in that: The base (1) comprises: A supporting crossbeam (12), wherein the bottom end of the first supporting tube (2) is fixedly arranged on the supporting crossbeam (12), and the first wire harness supporting beam (5) and the second wire harness supporting beam (8) are both arranged parallel to the supporting crossbeam (12); Two longitudinal beams (13), the two longitudinal beams (13) are respectively fixedly arranged at the two ends of the supporting cross beam (12), and are both arranged perpendicularly to the supporting cross beam (12); the longitudinal beams (13) and the supporting cross beam (12) are both arranged perpendicularly to the first supporting tube (2); the first ends of the longitudinal beams (13) are each provided with the clamping portion (11), and the longitudinal beams (13) are fixedly connected to one of the side plates (112) of the clamping portion (11).

5. The aircraft auxiliary power unit generator test wire harness support tooling according to claim 4, characterized in that: The longitudinal beam (13) and the side plate (112) are arranged perpendicularly.

6. The aircraft auxiliary power unit generator test wire harness support tooling according to claim 4, characterized in that: The first support tube (2), the second support tube (3) and the third support tube (6) are coaxially arranged.

7. The aircraft auxiliary power unit generator test wire harness support tooling according to claim 4, characterized in that: The supporting cross beam (12) is arranged at one end of the longitudinal beam (13) close to the clamping portion (11).

8. The aircraft auxiliary power unit generator test wire harness support tooling according to claim 1, characterized in that: The second support tube (3) is inserted into the first support tube (2), the first fastener (4) is arranged on the second support tube (3), the third support tube (6) is inserted into the second support tube (3), and the second fastener (7) is arranged on the third support tube (6).

9. The aircraft auxiliary power unit generator test wire harness support tooling according to claim 8, characterized in that: The first fastener (4) comprises: A first hoop (41) is sleeved on the second support tube (3), wherein the bottom end of the first hoop (41) abuts against the top end surface of the first support tube (2); Two first connecting plates (42), the first hoop (41) is provided with an opening, and the two first connecting plates (42) are respectively fixedly arranged on both sides of the opening of the first hoop (41); A first connecting bolt, wherein the two first connecting plates (42) are each provided with a connecting hole, and the first connecting bolt passes through the connecting holes on the two first connecting plates (42); The first connecting nut is threadedly connected to the threaded end of the first connecting bolt.

10. The aircraft auxiliary power unit generator test wire harness support tooling according to claim 9, characterized in that: The second fastener (7) comprises: A second hoop (71) is sleeved on the third support tube (6), and the bottom end of the second hoop (71) abuts against the top end surface of the second support tube (3); Two second connecting plates (72), the second hoop (71) is provided with an opening, and the two second connecting plates (72) are respectively fixedly arranged on both sides of the opening of the second hoop (71); A second connecting bolt, wherein the two second connecting plates (72) are each provided with a connecting hole, and the second connecting bolt passes through the connecting holes on the two second connecting plates (72); The second connecting nut is threadedly connected to the threaded end of the second connecting bolt.

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