Aircraft air circulation refrigeration assembly general assembly positioning device

Abstract

The utility model discloses a general assembly positioning device for an aircraft air circulation refrigeration assembly. Comprising a supporting frame (70), a positioning flat plate (701) is arranged on the supporting frame (70), and a pair of two-stage radiator fixing supporting columns (10) used for positioning a two-stage radiator in the aircraft air circulation refrigeration assembly, a radiator supporting seat (20) used for supporting the two-stage radiator and a supporting base (30) used for supporting an air circulation machine in the aircraft air circulation refrigeration assembly are installed on the positioning flat plate (701). The air circulation machine fixing supporting column (40) is used for positioning an air circulation machine, and the condenser fixing supporting column (50) and the heat regenerator fixing supporting column (60) are used for positioning and supporting a heat regeneration condenser assembly in the aircraft air circulation refrigeration assembly. According to the utility model, the final assembly positioning of the refrigeration assembly is realized while the final assembly tool efficiency of the refrigeration assembly is improved, and the requirement of the refrigeration assembly on the final assembly size precision is met.

Description

TECHNICAL FIELD

[0001] The utility model relates to aircraft airborne equipment assembly technical field, especially an aircraft air circulation refrigeration assembly general assembly positioning device. BACKGROUND

[0002] The aircraft air circulation refrigeration assembly (hereinafter referred to as refrigeration assembly) is an important component of aircraft airborne equipment, and high-temperature gas input by the air intake system is converted into clean air with appropriate temperature and pressure after being processed through multiple procedures such as compression, expansion and cooling, and then delivered to each part of the aircraft cabin. The refrigeration assembly is composed of a two-stage heat exchanger, an air circulation machine, a regenerator, a condenser, a water separator and other components, as well as fasteners, connectors and other components. The working principle of the refrigeration assembly is complex, and the structure is compact. The components are connected through flexible connectors, and cannot form a rigid whole like component-level products. Therefore, special tools or fixtures must be used for auxiliary assembly. In addition, the assembly of the refrigeration assembly needs to consider the assembly accuracy and installation compensation to ensure that the refrigeration assembly matches the fixed points on the aircraft after assembly. Therefore, the assembly of the refrigeration assembly requires high-quality assembly tools. SUMMARY

[0003] The utility model aims at providing an aircraft air circulation refrigeration assembly general assembly positioning device. The utility model improves the efficiency of the refrigeration assembly assembly tool, realizes the assembly positioning of the refrigeration assembly, and meets the size accuracy requirements of the refrigeration assembly for assembly.

[0004] The technical scheme of the utility model is: an aircraft air circulation refrigeration assembly general assembly positioning device, comprising a support frame, a positioning plate is arranged on the support frame, and the positioning plate is provided with: a pair of two-stage radiator fixing columns for positioning two-stage radiators in an aircraft air circulation refrigeration assembly, a radiator support seat for supporting the two-stage radiators, a support base for supporting an air circulation machine in the aircraft air circulation refrigeration assembly, an air circulation machine fixing column for positioning the air circulation machine, and a condenser fixing column and a regenerator fixing column for positioning a regenerative condenser assembly in the aircraft air circulation refrigeration assembly.

[0005] In the foregoing aircraft air circulation refrigeration assembly general assembly positioning device, the two-stage radiator fixing column comprises a stand A, a quick-release pin A with a loss-preventing rope, a stainless steel bushing and a fixed bottom plate A; the stand A and the fixed bottom plate A are fixedly connected through bolts, the stainless steel bushing is in interference fit with the stand A, and the quick-release pin A with the loss-preventing rope is fixed on the stand to prevent loss; the two-stage radiator fixing column is limited through the positioning pin on the positioning plate, and the two-stage radiator fixing column is fixed on the positioning plate by the hand-tightened round head stud.

[0006] In the foregoing aircraft air circulation refrigeration assembly assembly positioning device, the double-stage radiator support base includes a support seat, a quick-release plug with a loss-preventing rope B, and a fixed bottom plate B; the support seat and the fixed bottom plate B are fixedly connected through bolts, and the quick-release plug with a loss-preventing rope B is fixed on the support seat to prevent loss; the double-stage radiator support base is limited through a positioning pin on the positioning flat plate, and a hand-tightened round head stud is used to fix the double-stage radiator support base on the positioning flat plate.

[0007] In the foregoing aircraft air circulation refrigeration assembly assembly positioning device, the air circulation machine support base includes a crescent-shaped supporting plate, a movable column B, a clamping block, a clamping block seat, a fixed back plate A, a fixed column, and a fixed bottom plate C; the crescent-shaped supporting plate, the movable column B, the clamping block, the clamping block seat, the fixed back plate A, the fixed column, and the fixed bottom plate C are fixedly connected through bolts; the air circulation machine fixed column is limited through a positioning pin on the positioning flat plate, and a hand-tightened round head stud is used to fix the air circulation machine support base on the positioning flat plate.

[0008] In the foregoing aircraft air circulation refrigeration assembly assembly positioning device, the air circulation machine fixed column includes a fixed back plate B, a quick-release plug with a loss-preventing rope C, a connecting lug, a column C, and a fixed bottom plate D; the fixed back plate B, the connecting lug, the column C, and the fixed bottom plate D are connected through bolts, and the quick-release plug with a loss-preventing rope C is fixed on the column C to prevent loss; the air circulation machine fixed column is limited through a positioning pin on the positioning flat plate, and a hand-tightened round head stud is used to fix the air circulation machine fixed column on the positioning flat plate.

[0009] In the foregoing aircraft air circulation refrigeration assembly assembly positioning device, the condenser fixed column includes a fixed back plate C, a quick-release plug with a loss-preventing rope D, a connecting lug, a column D, and a fixed bottom plate E; the fixed back plate C, the connecting lug, the column D, and the fixed bottom plate E are connected through bolts, and the quick-release plug with a loss-preventing rope D is fixed on the column D to prevent loss; the condenser fixed column is limited through a positioning pin on the positioning flat plate, and a hand-tightened round head stud is used to fix the condenser fixed column on the positioning flat plate.

[0010] In the foregoing aircraft air circulation refrigeration assembly assembly positioning device, the regenerator fixed column includes a fixed back plate D, a quick-release plug with a loss-preventing rope E, a connecting lug, a column E, and a fixed bottom plate F; the fixed back plate D, the connecting lug, the column E, and the fixed bottom plate F are connected through bolts, and the quick-release plug with a loss-preventing rope E is fixed on the column E to prevent loss; the regenerator fixed column is limited through a positioning pin on the positioning flat plate, and a hand-tightened round head stud is used to fix the regenerator fixed column on the positioning flat plate.

[0011] The utility model discloses a positioning and fixing function of tooling is integrated on each fixed pillar or support seat, and the quick dismounting of each pillar can be realized through hand screwing round head stud, and the additional dismounting tool is not needed. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is airplane air circulation refrigeration assembly positioning device structural diagram for fixed pillar and support base and positioning flat board between each other, and the connecting fastening of positioning flat board and support frame between each other is shown in the figure.

[0013] Figure 2 It is the installation cooperation schematic drawing between the positioning device and the refrigeration assembly.

[0014] Figure 3 It is the connecting fastening schematic drawing between each fixed pillar and support base and positioning flat board, and the connecting fastening between positioning flat board and support frame.

[0015] Figure 4 It is double stage radiator fixed pillar structure schematic drawing.

[0016] Figure 5 It is double stage radiator support base structure schematic drawing.

[0017] Figure 6 It is air circulation machine support base structure schematic drawing.

[0018] Figure 7 It is air circulation machine fixed pillar structure schematic drawing.

[0019] Figure 8 It is condenser fixed pillar structure schematic drawing.

[0020] Figure 9 It is heat regenerator fixed pillar structure schematic drawing. DETAILED DESCRIPTION

[0021] The utility model will be further explained in connection with the drawings and examples, but not as the basis of the restriction of the utility model.

[0022] Example 1. An airplane air circulation refrigeration assembly positioning device, refer to Figures 1-9, including support frame 70, provided with positioning plate 701, on which a pair of double-stage radiator fixing column 10 for positioning double-stage radiator in aircraft air circulation refrigeration assembly, radiator support seat 20 for supporting double-stage radiator, support base 30 for supporting air circulation machine in aircraft air circulation refrigeration assembly, air circulation machine fixing column 40 for positioning air circulation machine, condenser fixing column 50 and regenerator fixing column 60 for positioning regenerative condenser assembly in aircraft air circulation refrigeration assembly are installed. Positioning plate 701 is fixed with support frame 70 through fasteners 705, 706, on which stainless steel sleeve 703 with internal thread is installed, cooperating with stainless steel hand-tightened round head stud 702, for fixing each column on positioning plate 701.

[0023] Double-stage radiator fixing column 10 is composed of column A101, quick-release plug A102 with anti-lost rope, stainless steel bushing 103 and fixing bottom plate A104, column A101 and fixing bottom plate A104 are processed from aluminum alloy, which can avoid damage to product surface caused by tooling; column A101 and fixing bottom plate A104 are fixedly connected through bolts, stainless steel bushing 103 is interference-fitted with column A101, quick-release plug A102 with anti-lost rope is fixed on column to prevent loss. Double-stage radiator fixing column 10 is limited through positioning pin 704 on positioning plate 701, and is fixed on positioning plate 701 through hand-tightened round head stud 702.

[0024] Double-stage radiator support base 20 is composed of support seat 201, quick-release plug B202 with anti-lost rope and fixing bottom plate B203, support seat 201 and fixing bottom plate B203 are processed from aluminum alloy, support seat 201 and fixing bottom plate B203 are fixedly connected through bolts, quick-release plug B202 with anti-lost rope is fixed on support seat 201 to prevent loss. Double-stage radiator support base 20 is limited through positioning pin 704 on positioning plate 701, and is fixed on positioning plate 701 through hand-tightened round head stud 702.

[0025] Air circulation machine support base 30 is composed of crescent-shaped supporting plate 301, movable column B302, clamping block 303, clamping block seat 306, fixing back plate A305, fixing column 307 and fixing bottom plate C304, all of which are processed from aluminum alloy, and are fixedly connected through bolts. Air circulation machine fixing column 30 is limited through positioning pin 704 on positioning plate 701, and air circulation machine support base 30 is fixed on positioning plate 701 through hand-tightened round head stud 702.

[0026] The air circulating machine fixing pillar 40 is composed of a fixing back plate B401, a quick-release plug C402 with anti-lost rope, a connecting lug 403, a stand C404, and a fixing bottom plate D405, all of which are made of aluminum alloy, and the fixing back plate B401, the connecting lug 403, the stand C404, and the fixing bottom plate D405 are connected by bolts, and the quick-release plug C402 with anti-lost rope is fixed on the stand C404 to prevent loss. The air circulating machine fixing pillar 40 is limited by the positioning pin 704 on the positioning flat plate 701, and the air circulating machine fixing pillar 40 is fixed on the positioning flat plate 701 by the hand-tightened round head stud 702.

[0027] The condenser fixing pillar 50 is composed of a fixing back plate C501, a quick-release plug D502 with anti-lost rope, a connecting lug 503, a stand D504, and a fixing bottom plate E505, all of which are made of aluminum alloy, and the fixing back plate C501, the connecting lug 503, the stand D504, and the fixing bottom plate E505 are connected by bolts, and the quick-release plug D502 with anti-lost rope is fixed on the stand D504 to prevent loss. The condenser fixing pillar 50 is limited by the positioning pin 704 on the positioning flat plate 701, and the condenser fixing pillar 50 is fixed on the positioning flat plate 701 by the hand-tightened round head stud 702.

[0028] The regenerator fixing pillar 60 is composed of a fixing back plate D601, a quick-release plug E602 with anti-lost rope, a connecting lug 603, a stand E604, and a fixing bottom plate F605, all of which are made of aluminum alloy, and the fixing back plate D601, the connecting lug 603, the stand E604, and the fixing bottom plate F605 are connected by bolts, and the quick-release plug E602 with anti-lost rope is fixed on the stand E604 to prevent loss. The regenerator fixing pillar 60 is limited by the positioning pin 704 on the positioning flat plate 701, and the regenerator fixing pillar 60 is fixed on the positioning flat plate 701 by the hand-tightened round head stud 702.

[0029] According to the embodiment of the utility model, before the total assembly of the air circulation refrigeration assembly, all the support columns or support bases need to be disassembled. Then, during the total assembly of the refrigeration assembly, according to the total assembly process route of the refrigeration assembly, first, install two double-stage radiator fixed support columns 10 and double-stage radiator support bases 20 on the positioning plate 701, install the double-stage radiator assembly on the radiator support base 20, connect and fix the double-stage radiator and the support base 20 by using the quick-release latch 202 with an anti-lost rope, and additionally, through the two double-stage radiator fixed support columns 10 on the double-stage radiator flange connecting surface, accurately position the double-stage radiator. The column A101 in the double-stage radiator fixed support column 10 is designed as an L-shaped section, and the design purpose is to reduce the overall weight of the fixed support column 10 and to increase the bending resistance of the column A101. The support base 201 in the double-stage radiator support base 20 is designed as a circular arc shape at the contact position with the double-stage radiator to meet the support requirements of the double-stage radiator.

[0030] According to the embodiment of the utility model, the air circulation machine support base 30 is installed on the positioning plate 701 by the hand-tightened round head stud 702, then the air circulation machine is placed on the support base 30, and the air circulation machine is positioned and fixed by the air circulation machine fixed support column 40. During the installation of the air circulation machine, the height of the movable column B302 can be adjusted to adjust the spatial height of the air circulation machine, so that the air circulation machine can be positioned by the air circulation machine fixed support column 40. The design of the crescent-shaped supporting plate 301 is also to match the shape of the air circulation machine with the support base 30, and to adjust the spatial height of the air circulation machine together with the movable column B302. The connecting lug 403 of the air circulation machine fixed support column 40 is designed as a trapezoidal shape, which is matched with the air circulation machine and also increases the shear resistance of the connecting lug 403.

[0031] According to the embodiment of the utility model, the condenser fixed support column 50 is fixed on the positioning plate 701 by the hand-tightened round head stud 702, then the heat recovery condenser assembly is preliminarily positioned by the condenser fixed support column 50, further, the heat recovery fixed support column 60 is installed in cooperation with the heat recovery condenser assembly, and the fixed support column 60 is fixed on the positioning plate 701, so that the total assembly positioning of the heat recovery condenser assembly is completed by the condenser fixed support column 50 and the heat recovery fixed support column 60.

[0032] Embodiment 2. An aircraft air cycle refrigeration assembly assembly positioning device, comprising a two-stage radiator fixed support 10, a two-stage radiator support base 20, an air cycle machine support base 30, an air cycle machine fixed support 40, a condenser fixed support 50, a regenerator fixed support 60, positioning flat plates 701, and a support frame 702; characterized in that the positioning flat plates 701 are connected by fasteners A 705 and fasteners B 706, and in addition, on the positioning flat plates 701, stainless steel sleeves 703 with internal threads and positioning pins 704 are installed in cooperation with hand-tightened round head studs 702 to fix and position each fixed support and support base on the positioning flat plates 701; when performing refrigeration assembly assembly, each fixed support and support base needs to be removed first, then according to the assembly process route of the refrigeration assembly, each fixed support and support base is installed in turn according to the assembly actions of each component in the refrigeration assembly, and finally the assembly positioning work of the refrigeration assembly is completed.

[0033] The positioning flat plates 701 are processed from aluminum alloy, and the stainless steel sleeves 703 with internal threads are installed on the positioning flat plates 701 to cooperate with the hand-tightened round head studs 702, avoiding thread wear of the hand-tightened round head studs 702 after multiple uses.

[0034] The upright column A101 of the two-stage radiator fixed support 10 is designed in an L-shaped cross section, enhancing the bending resistance of the upright column A101.

[0035] The anti-lost rope quick-release latch A102 is fixed on the upright column A101 by an anti-lost rope, facilitating the use of the anti-lost rope quick-release latch A102.

[0036] The upright column A101 is processed from aluminum alloy, and the stainless steel bushing 103 is installed on the upright column A101 to ensure that the use of the anti-lost rope quick-release latch A102 does not affect the size of the latch hole, thereby affecting the positioning of the two-stage radiator.

[0037] The bearing position of the support seat 201 in the two-stage radiator support base 20 accurately cooperates with the bottom ear of the two-stage radiator assembly, avoiding damage to the bottom ear.

[0038] The crescent-shaped supporting plate 301 in the air cycle machine support base 30 matches the shape of the air cycle machine shell; the space height of the movable upright column B302 and the crescent-shaped supporting plate 301 can be adjusted by the tightness between the clamping block 303 and the clamping block seat 306.

[0039] The fixed upright column 307 in the air cycle machine support base 30 is not a complete square column, but its top is partially cut, aiming to ensure strength while avoiding interference of the fixed upright column 307 with refrigeration assembly piping accessories.

[0040] The force bearing position of the connecting lug 430 is designed as a trapezoid, which is to match the connection with the air circulating machine and to increase the shearing resistance of the connecting lug 403; the connecting lug 503 and the connecting lug 603 are designed in the same way to increase the shearing resistance of the connecting lug.

[0041] Example 3. Please refer to the attached drawings of the specification Figures 1-9 .

[0042] Figure 1 The structure diagram of the positioning device for the refrigeration assembly assembly is shown in the figure, which mainly consists of a support frame, a positioning plate, and various fixed supports and support bases.

[0043] Figure 2 The schematic diagram of the assembly positioning device and the refrigeration assembly assembly is shown in the figure. Before the refrigeration assembly is assembled, all the fixed supports and support bases are removed from the positioning plate 701. During the assembly of the refrigeration assembly, according to the process route of the refrigeration assembly, the double-stage radiator fixed support 10 and the double-stage radiator support base 20 are installed on the positioning plate 701 by hand-tightening round head studs 702, and then the double-stage radiator assembly is installed on the three supports or support bases. The double-stage radiator assembly is fixed to the double-stage radiator fixed support 10 by the quick-release pin A102 with a loss-preventing rope, and the bottom lug of the double-stage radiator assembly is supported by the double-stage radiator support base 20. Thus, the positioning and assembly of the double-stage radiator assembly are completed by the double-stage radiator fixed support 10 and the double-stage radiator support base 20.

[0044] The air circulating machine support base 30 is installed on the positioning plate 701, and then the air circulating machine is placed on the air circulating machine support base 30. Next, the air circulating machine fixed support 40 is installed, and the fixed support 40 is connected and fixed to the air circulating machine. At the same time, the height of the movable column 30 in the support base 30 is adjusted to adapt to the required space installation position of the air circulating machine.

[0045] Through the above two steps, the positioning of the double-stage radiator assembly and the air circulating machine is completed, and then the punched air conversion valve and the connecting pipe are installed between the double-stage radiator assembly and the air circulating machine. Next, the connecting piece between the air circulating machine and the regenerative condenser assembly is installed, and the regenerative condenser assembly is connected and installed with the air circulating machine. At the same time, the condenser fixed support 50 is used to fix and position the condenser end of the regenerative condenser assembly, and the regenerator fixed support 60 is used to fix and position the regenerator end.

[0046] After the positioning and installation of the double-stage radiator assembly, the air circulating machine, and the regenerative condenser assembly are completed, the installation of the main components of the refrigeration assembly is also completed. At this point, the assembly and positioning of the air circulating refrigeration assembly can be realized by assembling other connecting pipes and accessories.

Claims

1. An aircraft air cycle refrigeration assembly assembly positioning device, comprising: The utility model provides a kind of aircraft air circulation refrigeration assembly positioning device, including support frame (70), support frame (70) is equipped with positioning flat plate (701), positioning flat plate (701) is installed with: a pair of double-stage radiator fixed pillar (10) for positioning double-stage radiator in aircraft air circulation refrigeration assembly, double-stage radiator support base (20) for supporting double-stage radiator, air circulation machine support base (30) for supporting air circulation machine in aircraft air circulation refrigeration assembly, air circulation machine fixed pillar (40) for positioning air circulation machine, condenser fixed pillar (50) for positioning supporting regenerative condenser assembly in aircraft air circulation refrigeration assembly and regenerator fixed pillar (60).

2. The aircraft air cycle refrigeration assembly assembly positioning device of Claim 1, wherein, Double-stage radiator fixed pillar (10) includes column A (101), take anti-lost rope quick-release latch A (102), stainless steel bushing (103) and fixed bottom plate A (104);Column A (101) and fixed bottom plate A (104) are fixedly connected by bolt, stainless steel bushing (103) is interference fit between column A (101), take anti-lost rope quick-release latch A (102) is fixed on column A (101) and prevents losing;Double-stage radiator fixed pillar (10) is limited by positioning pin (704) on positioning flat plate (701), and double-stage radiator fixed pillar (10) is fixed on positioning flat plate (701) using hand screw round head stud (702).

3. The aircraft air cycle refrigeration assembly assembly positioning device of Claim 1, wherein, Double-stage radiator support base (20) includes support seat (201), take anti-lost rope quick-release latch B (202), fixed bottom plate B (203);Support seat (201) and fixed bottom plate B (203) are fixedly connected by bolt, take anti-lost rope quick-release latch B (202) is fixed on support seat (201) and prevents losing;Double-stage radiator support base (20) is limited by positioning pin (704) on positioning flat plate (701), and double-stage radiator support base (20) is on positioning flat plate (701) using hand screw round head stud (702).

4. The aircraft air cycle refrigeration assembly assembly positioning device of Claim 1, wherein, Air circulation machine support base (30) includes crescent-shaped supporting plate (301), movable column B (302), clamping block (303), clamping block seat (306), fixed back plate A (305), fixed pillar (307) and fixed bottom plate C (304);Crescent-shaped supporting plate (301), movable column B (302), clamping block (303), clamping block seat (306), fixed back plate A (305), fixed pillar (307) and fixed bottom plate C (304) are fixedly connected by bolt;Air circulation machine fixed pillar (40) is limited by positioning pin (704) on positioning flat plate (701), and air circulation machine support base (30) is on positioning flat plate (701) using hand screw round head stud (702).

5. The aircraft air cycle refrigeration assembly assembly positioning device of Claim 1, wherein, The air circulating machine fixing support (40) comprises a fixing back plate B (401), a quick-release plug C (402) with a loss-preventing rope, a connecting lug A (403), a column C (404), and a fixing bottom plate D (405), the fixing back plate B (401), the connecting lug A (403), the column C (404), and the fixing bottom plate D (405) are connected by bolts, the quick-release plug C (402) with the loss-preventing rope is fixed on the column C (404) to prevent loss; the air circulating machine fixing support (40) is limited by the positioning pin (704) on the positioning plate (701), and the air circulating machine fixing support (40) is fixed on the positioning plate (701) by the hand-tightened round head stud (702).

6. The aircraft air cycle refrigeration assembly assembly positioning device of Claim 1, wherein, The condenser fixing support (50) comprises a fixing back plate C (501), a quick-release plug D (502) with a loss-preventing rope, a connecting lug B (503), a column D (504), and a fixing bottom plate E (505); the fixing back plate C (501), the connecting lug B (503), the column D (504), and the fixing bottom plate E (505) are connected by bolts, the quick-release plug D (502) with the loss-preventing rope is fixed on the column D (504) to prevent loss; the condenser fixing support (50) is limited by the positioning pin (704) on the positioning plate (701), and the condenser fixing support (50) is fixed on the positioning plate (701) by the hand-tightened round head stud (702).

7. The aircraft air cycle refrigeration assembly assembly positioning device of Claim 1, wherein, The regenerator fixing support (60) comprises a fixing back plate D (601), a quick-release plug E (602) with a loss-preventing rope, a connecting lug C (603), a column E (604), and a fixing bottom plate F (605); the fixing back plate D (601), the connecting lug C (603), the column E (604), and the fixing bottom plate F (605) are connected by bolts, the quick-release plug E (602) with the loss-preventing rope is fixed on the column E (604) to prevent loss; the regenerator fixing support (60) is limited by the positioning pin (704) on the positioning plate (701), and the regenerator fixing support (60) is fixed on the positioning plate (701) by the hand-tightened round head stud (702).

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