An adjustable tie rod device for supporting pipelines and its usage method

Abstract

The present invention discloses an adjustable tie rod device for supporting a pipeline and its usage method. The device includes a fixing module, a tie rod position adjustment module, and a tie rod module. The fixing module is connected to an aircraft structural member and the tie rod position adjustment module. The tie rod position adjustment module includes a base and an actuating mechanism provided on the base. An activity channel for the translation and pivoting of the tie rod module is provided inside the base. One end of the tie rod module is arranged in the activity channel, and its position is adjusted by translation and / or pivoting, and then the tie rod module is locked by the actuating mechanism. The other end of the tie rod module is connected to the pipeline through a knee joint bearing. The present invention can make a large range of position adjustments during the installation process, thereby weakening or even eliminating the influence of prestress on the pipeline and improving the safety and reliability of the pipeline.

Description

Technical Field

[0001] The present invention relates to pipeline fixing technology, and particularly to an adjustable tie rod device for supporting pipelines and its usage method. Background Art

[0002] The high-temperature air pipeline is an important part of the aircraft air management device and method, and its safety is an essential link to ensure the overall safety during the operation of the aircraft.

[0003] Currently, there are two common forms of supports for aircraft pipelines, namely tie rods and saddle clamps. In either form, there is a problem of installation stress. That is, in the initial stage of pipeline installation, due to processing and other reasons, it is difficult to easily connect the support and the pipeline together, and an initial force needs to be applied to combine the pipeline and the support. This results in initial stress in the pipeline itself, which is likely to cause the stress of the pipeline to exceed the standard during the later operation process, thereby damaging the pipeline and reducing the reliability of the pipeline. Summary of the Invention

[0004] Object of the Invention: The present invention aims to provide an adjustable tie rod device for supporting pipelines and its usage method, which can flexibly adjust the installation position, reduce the initial stress of the pipeline, and increase the safety and reliability of the pipeline.

[0005] Technical Solution: An adjustable tie rod device for supporting pipelines according to the present invention includes a fixing module, a tie rod position adjustment module, and a tie rod module. The fixing module connects the aircraft structural member and the tie rod position adjustment module. The tie rod position adjustment module includes a base and an actuating mechanism provided on the base. An activity channel for the translation and pivoting of the tie rod module is provided inside the base. One end of the tie rod module is arranged in the activity channel, and its position is adjusted by translation and / or pivoting, and then the tie rod module is locked by the actuating mechanism. The other end of the tie rod module is connected to the pipeline through a knee joint bearing.

[0006] Preferably, the fixing module includes a fixing plate. A plurality of positioning holes are provided on the surface of the fixing plate connected to the tie rod position adjustment module. Different-direction positioning holes are selected and connected through positioning bolts to adjust the relative position between the tie rod position adjustment module and the fixing plate.

[0007] Preferably, a fixing channel is provided on the upper side of the base, and the fixing channel is clamped with the positioning bolts on the fixing plate.

[0008] Preferably, the cross-section of the activity channel is cross-shaped.

[0009] Preferably, the actuating mechanism includes a hydraulic component, an upper pressure rod, a lower pressure rod, and a connecting component; the hydraulic component is arranged on the base of the pull rod position adjustment module and is connected to the upper pressure rod; both ends of the upper pressure rod and the lower pressure rod are respectively connected through the connecting component, and the lower pressure rod is fixed to the base; the connecting component is a foldable deformation unit, and the start of the hydraulic component drives the upper pressure rod to move up and down to adjust the distance between the upper pressure rod and the lower pressure rod.

[0010] Preferably, brackets for installing and fixing the hydraulic component are provided on the front and rear sides of the base.

[0011] Preferably, the pull rod module includes a pull rod body, one end of the pull rod body is connected to a pull rod cross, and the other end is connected to a knee joint bearing, and the pull rod cross is arranged in a movable channel inside the base.

[0012] Preferably, the pull rod body and the pull rod cross are detachably connected.

[0013] Preferably, lugs are arranged on the pipeline, and the pipeline is connected to the knee joint bearing of the pull rod module through the lugs.

[0014] A method for using an adjustable pull rod device for supporting a pipeline according to the present invention includes the following steps:

[0015] Step 1: Determine the position where the fixing module is installed on the aircraft structural member and fix it.

[0016] Step 2: Assemble the pull rod position adjustment module and the pull rod module respectively, and then connect one end of the pull rod module to the pipeline.

[0017] Step 3: Adjust the position of the pipeline through the translation and / or pivoting of the pull rod module in the movable groove to make it in a relaxed state to reduce the initial stress.

[0018] Step 4: Start the actuating mechanism to lock the position of the pull rod module in the movable channel.

[0019] Step 5: In the initial state of the locking device, when stress deformation occurs in the pipeline during use, rotate the knee joint bearing for stress compensation.

[0020] Beneficial effects: Compared with the prior art, the present invention has the following remarkable advantages: It can flexibly adjust the installation position of the pipeline to reduce or even offset the errors in the processing and installation processes, thereby reducing the prestress of the pipeline, and increasing the safety and reliability of the pipeline. Brief Description of the Drawings

[0021] Figure 1 is a structural schematic diagram of the present invention;

[0022] Figure 2 is a structural diagram of the fixing module of the present invention;

[0023] Figure 3 Schematic diagram of the base structure of the present invention;

[0024] Figure 4 Schematic diagram of the actuating mechanism of the present invention

[0025] Figure 5 Schematic diagram of the tie rod module of the present invention;

[0026] Figure 6 Schematic diagram of the pipeline of the present invention;

[0027] Figure 7 Schematic diagram of the actuating mechanism in the pressure application state of the present invention;

[0028] Figure 8 Schematic diagram of the axial rotation of the tie rod cross of the present invention;

[0029] Figure 9 Schematic diagram of the radial rotation of the tie rod cross of the present invention;

[0030] Figure 10 Schematic diagram of the rotation limit of the tie rod cross of the present invention;

[0031] Figure 11 Schematic diagram of the installation of the tie rod cross of the present invention;

[0032] Figure 12 Schematic diagrams of different fixing states of the fixing module of the present invention; wherein, (a) is the horizontal fixing state; (b) is the vertical fixing state.

[0033] Among them, 1 - fixing module, 11 - fixing plate, 12 - fixing bolt, 13 - positioning bolt, 14 - fixing hole, 15 - positioning hole; 2 - tie rod position adjustment module, 21 - base, 211 - fixing channel, 212 - movable channel, 213 - bracket, 22 - actuating mechanism, 221 - hydraulic component, 222 - upper pressure rod, 223 - lower pressure rod, 224 - connecting member, 225 - fixing buckle; 3 - tie rod module, 31 - tie rod cross, 32 - tie rod body, 33 - knee joint bearing, 34 - merging bolt, 35 - connecting bolt; 4 - pipeline, 41 - pulling ear. Specific embodiments

[0034] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings.

[0035] As Figure 1As shown in the figure, an adjustable pull rod device for supporting pipelines according to the present invention includes a fixing module 1, a pull rod position adjustment module 2, and a pull rod module 3. The fixing module 1 connects the aircraft structural member and the pull rod position adjustment module 2. One end of the pull rod module 3 is movably connected to the pull rod position adjustment module 2, and the other end is connected to the pipeline.

[0036] The fixing module 1 includes a fixing plate 11. The fixing plate 11 is L-shaped and has rib plates on both sides. The surface of the fixing plate 11 connected to the aircraft structural member is provided with a plurality of fixing holes 14 and is connected to the aircraft structural member through fixing bolts 12. The surface connected to the pull rod position adjustment module 2 is provided with a plurality of positioning holes 15 and is connected to the pull rod position adjustment module through positioning bolts 13, as Figure 2 shown. By selecting different combinations of positioning holes, the connection direction between the fixing plate and the pull rod position adjustment module 2 is different. For example, Figure 12 the different fixing states obtained by connecting the positioning holes in the horizontal direction and the positioning holes in the vertical direction as shown.

[0037] The pull rod position adjustment module 2 includes a base 21 and an actuating mechanism 22 provided on the base, as Figures 3 - 4 shown. A fixing channel 211 is provided on the upper side of the base 21. The fixing channel 211 is clamped with the positioning bolt 13 on the fixing plate 11. An activity channel 212 is provided inside the base 21. The cross-section of the activity channel 212 is cross-shaped. The activity channel is used for the horizontal movement or axial rotation (i.e., self-rotation) or radial rotation (i.e., swing) of the pull rod module. The self-rotation angle of the pull rod module is limited by the width of the top of the activity channel.

[0038] The actuating mechanism 22 includes a hydraulic component 221, an upper pressure rod 222, a lower pressure rod 223, and a connecting member 224. The hydraulic component 221 is installed on the brackets 213 provided on the front and rear sides of the base 21 and is fixed by a fixing buckle 225. The two ends of the upper pressure rod 222 and the lower pressure rod 223 are respectively connected through the connecting member 224 to form a clamping component. The clamping components are respectively provided on both sides of the activity channel of the base 21. The connecting member 224 is a foldable deformation unit. The lower pressure rod 223 is fixed below the activity channel, and its upper surface is flush with or slightly higher than the lower surface of the activity channel for protecting the activity channel. The upper pressure rod 222 is connected to the hydraulic component 221. The hydraulic component drives the upper pressure rod 222 to move up and down to adjust the distance between the upper pressure rod 222 and the lower pressure rod 223. By applying a sufficiently large force to the upper pressure rod, the position of the pull rod cross in the activity channel is fixed, thereby fixing the pull rod module.

[0039] The pull rod module 3 includes a pull rod cross 31, a pull rod body 32 and a knee joint bearing 33. One end of the pull rod body 32 is detachably connected to the pull rod cross 31 through a combined bolt 34, and the other end is connected to the knee joint bearing 33. The knee joint bearing 33 of the pull rod module 3 is connected to a lug 41 provided on the pipeline 4 through a connecting bolt 35, as Figures 5 - 6 shown. The pull rod cross 31 is arranged in a movable channel 212 inside the base 21, and the total length L1 of the pull rod cross is less than the length L of the movable channel 212. This setting ensures that the pull rod cross can be placed in the movable channel 212, as Figure 11 shown. The relationship between the side length W1, the diagonal length W2 of the square at the top of the pull rod cross and the top width W of the movable channel 212 is W1 < W < W2. This setting ensures that the rotation of the pull rod cross is restricted, as Figure 10 shown.

[0040] The working principle of the present invention is that due to processing errors, the pipeline may not be in the predetermined position. In this case, the pull rod itself will bear the stress of the deformation of the pipeline when connecting the pipeline. By adjusting the position of the pull rod, the pull rod itself only bears the gravity of the pipeline, that is, the pipeline is in a relaxed state, which can reduce the initial stress of the pipeline and increase the safety and reliability of the pipeline. Different fixed states are obtained by connecting the fixed module and the pull rod position adjustment module through positioning holes with different direction combinations; when the pull rod cross is in the movable channel, the position of the pipeline is adjusted by translating, rotating and / or swinging the pull rod cross, and then the pull rod cross is locked by the actuating mechanism, that is, the hydraulic component drives the upper pressure rod to move up and down to adjust the distance between the upper pressure rod 222 and the lower pressure rod 223, so as to fix the pull rod cross. During the working process of the pipeline, the knee joint bearing at the other end of the pull rod module still has a certain degree of freedom, so that the pipeline still has a certain movement space. When stress deformation occurs in the pipeline during use, stress compensation is carried out by the rotation of the knee joint bearing.

[0041] The usage method of an adjustable pull rod device for supporting a pipeline according to the present invention includes the following steps:

[0042] Step 1: Determine the position of the fixed module installed on the aircraft structural member, and then fix it to the aircraft structural member using a fixing bolt;

[0043] Step 2: Assemble the pull rod position adjustment module and the pull rod module, and then connect the knee joint bearing of the pull rod module and the lug of the pipeline through a connecting bolt;

[0044] Step 3: Adjust the position of the pull rod cross on the movable channel to make the pipeline in a relatively relaxed state and ensure that its initial stress is as small as possible;

[0045] Step 4: Start the actuating mechanism to lock the position of the pull rod cross on the movable channel to ensure that it no longer moves;

[0046] Step 5: Initial state of the locking device. When stress deformation occurs during the use of the pipeline, stress compensation is carried out by the rotation of the knee joint bearing.

Claims

1. An adjustable pull rod device for supporting a pipeline, characterized in that: The invention comprises a fixing module (1), a rod position adjustment module (2) and a rod module (3), wherein the fixing module (1) is connected to an aircraft structural member and the rod position adjustment module (2), the rod position adjustment module (2) comprises a base (21) and an actuating mechanism (22) arranged on the base, a movable groove (212) for translating and pivoting the rod module (3) is arranged inside the base (21), one end of the rod module (3) is arranged in the movable groove (212), and its position is adjusted by translation and / or pivoting, and then the rod module is locked by the actuating mechanism (22); the other end of the rod module (3) is connected to the pipeline (4) through a knee joint bearing (33); The actuating mechanism (22) comprises a hydraulic component (221), an upper pressure rod (222), a lower pressure rod (223) and a connecting component (224); the hydraulic component (221) is arranged on the base (21) of the pull rod position adjustment module (2), and the hydraulic component (221) is connected to the upper pressure rod (222); the upper pressure rod (222) and the lower pressure rod (223) are connected at both ends by connecting components (224), and the lower pressure rod (223) is fixed to the base; the connecting component (224) is a foldable deformation unit, and the hydraulic component is activated to drive the upper pressure rod to move up and down to adjust the distance between the upper pressure rod (222) and the lower pressure rod (223).

2. The adjustable pull rod device for supporting a pipeline according to claim 1, characterized in that: The fixing module (1) includes a fixing plate (11), and a surface of the fixing plate (11) connected to the pull rod position adjustment module (2) is provided with a plurality of positioning holes (15). Positioning holes in different directions are selected for connection via positioning bolts (13) to adjust the relative position of the pull rod position adjustment module (2) and the fixing plate (11).

3. The adjustable pull rod device for supporting a pipeline according to claim 2, characterized in that: A fixing groove (211) is provided on the upper side of the base (21), and the fixing groove (211) is clamped with a positioning bolt (13) on the fixing plate (11).

4. The adjustable pull rod device for supporting a pipeline according to claim 1, characterized in that: The cross section of the movable channel (212) is cross-shaped.

5. The adjustable pull rod device for supporting a pipeline according to claim 1, characterized in that: Brackets (213) for mounting and fixing the hydraulic components (221) are provided on the front and rear sides of the base (21).

6. The adjustable pull rod device for supporting a pipeline according to claim 1, characterized in that: The pull rod module (3) comprises a pull rod body (32), one end of the pull rod body (32) is connected to a pull rod cross (31), and the other end is connected to a knee joint bearing (33), and the pull rod cross (31) is arranged in a movable channel (212) inside the base (21).

7. The adjustable pull rod device for supporting a pipeline according to claim 6, characterized in that: The pull rod body (32) and the pull rod cross (31) are detachably connected.

8. The adjustable pull rod device for supporting a pipeline according to claim 6, characterized in that: A pull ear (41) is provided on the pipeline (4), and the pipeline (4) is connected to the knee joint bearing (33) of the pull rod module (3) through the pull ear (41).

9. A method for using the adjustable pull rod device for supporting a pipeline according to any one of claims 1 to 8, characterized in that: The steps include: Step 1: Determine the position of the fixing module (1) on the aircraft structure and fix it; Step 2: Assemble the pull rod position adjustment module (2) and the pull rod module (3) respectively, and then connect one end of the pull rod module to the pipeline; Step 3: by translating and / or pivoting the pull rod module in the movable channel (212), the position of the pipeline is adjusted to be in a relaxed state to reduce the initial stress; Step 4: Start the actuating mechanism to lock the pull rod module in the position of the movable channel (212); Step 5: The initial state of the locking device. When stress deformation occurs in the pipeline during use, the knee joint bearing is rotated to compensate for the stress.

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