An auxiliary mounting device for axial tensile compression, radial offset

Abstract

The application belongs to the technical field of manufacturing and relates to an auxiliary installation device for realizing axial stretching and compression and radial deviation. The auxiliary installation device comprises an axial stretching and compression mechanism and a radial deviation mechanism which share a first bottom plate. The axial stretching and compression mechanism comprises a second bottom plate, a first hand wheel, a toothed gear shaft bushing, an internally threaded shaft bushing, a belt, a belt support wheel, a first lead screw and a shaft assembly. The radial deviation mechanism comprises left and right radial deviation units which are identical in structure. The non-fixed stationary end of a product to be adjusted is driven by the first bottom plate to realize axial stretching or compression, that is, axial error in the pipeline installation process is compensated. When the product to be adjusted needs to realize deviation, the non-fixed stationary end of the product to be adjusted fixed on the panel is deviated by a certain angle. After the non-fixed stationary end of the product to be adjusted is connected to another pipeline interface of the machine body, radial error in the pipeline installation process is finally compensated.

Description

Technical Field

[0001] This invention belongs to the field of manufacturing technology and relates to an auxiliary installation device for achieving axial tensile compression and radial offset. Background Technology

[0002] For an aircraft, piping is like its "blood vessels" to the human body, directly impacting flight safety. Even the slightest mishandling during piping assembly is not a simple "error" but can be amplified under extreme conditions, potentially triggering a chain reaction. For example, installing piping under stress (forced alignment) creates additional assembly stress. Under continuous aircraft vibration, pressure pulses, and fuselage (bending) loads, these stress concentration points can become the initiation points of fatigue cracks. Sustained stress also significantly reduces the service life of the entire piping system. Twisting or deforming conduits during installation not only causes minor changes in conduit diameter and unnecessary bends, increasing fluid resistance and reducing system efficiency; conduit deformation can also reduce or cut off fluid (gas, liquid) flow. In short, improper piping assembly not only causes indirect and systemic hazards such as decreased system performance and shortened system lifespan, but more alarmingly, under years of flight vibration, these indirect hazards can cause sudden piping failure, leading to in-flight emergencies. For example, if the air bleed line used for de-icing the wings is obstructed or leaks, causing the aircraft to lose its de-icing and anti-icing capabilities, it is extremely dangerous under icing conditions and could lead to a catastrophic accident.

[0003] Currently, the assembly process of high-temperature air ducts in aircraft requires the series assembly of numerous stainless steel high-temperature (high-pressure) bends and straight pipes. To eliminate the many "errors" affecting duct assembly, CNC bending is used in duct manufacturing to ensure precise shape; CNC machining is used for fuselage components to improve manufacturing accuracy; and laser tracking is used to measure and generate digital twin models for the docking of large components. These methods improve production and assembly processes. Furthermore, duct compensators are incorporated into the design to provide a certain amount of axial tension / compression or radial offset to further compensate for the accumulated tolerances in duct manufacturing and aircraft structural manufacturing and assembly processes, thus meeting connection and installation requirements.

[0004] The applicant discovered that the high-temperature bleed air pipelines are installed in narrow or non-open areas such as the aircraft nacelle and wings. During the assembly process, the pipeline compensators in the high-temperature bleed air pipelines need to be manually stretched / compressed or deflected in advance to achieve the shape that can connect the conduits. The installation area is also where hydraulic / fire extinguishing pipelines, cables and other system accessories are arranged. The assembly passage is narrow, disassembly / assembly is difficult, workers are inconvenient to operate, the workload is large and the labor intensity is high. Summary of the Invention

[0005] Purpose of the invention:

[0006] To address the aforementioned assembly and disassembly challenges in existing assembly processes, this invention provides a pipeline compensator auxiliary installation device that can conveniently and quickly stretch / compress or radially offset the component to be assembled, changing its shape to meet the connection requirements with the conduit before docking. This device is small in size, lightweight, and easy to operate, significantly reducing the difficulty and labor intensity for workers and shortening the installation time.

[0007] The technical solution of the present invention is as follows:

[0008] An auxiliary installation device for achieving axial tension and compression and radial offset includes an axial telescopic mechanism and a radial deflection mechanism sharing a first base plate. The axial telescopic mechanism includes a second base plate, a first handwheel, a geared bushing, an internally threaded bushing, a belt, a belt support wheel, a first lead screw, and a shaft assembly.

[0009] The bushing ends of the geared shaft bushing and two internally threaded shaft bushings are fixed to the first base plate. The internally threaded end of the geared shaft bushing is screwed to the externally threaded end of the first shaft. The two internally threaded shaft bushings are respectively screwed to the internally threaded ends of the second and third shafts. The other ends of the first, second, and third shafts are respectively connected to the second base plate. The first handwheel is fixed to the first base plate, and the first lead screw on the handwheel can rotate in cooperation with the gear end of the geared shaft bushing. The belt is installed in the second groove of the geared shaft bushing and the two internally threaded shaft bushings, and supports the pulley through the belt. The constraint ensures that both sides of the belt overlap the same side of the belt support pulley. Rotating the first handwheel causes the first lead screw to rotate through gear engagement, which in turn rotates the belt on the geared shaft bushing. The belt then rotates the two internally threaded shaft bushings, which in turn drive the internal threads of the geared shaft bushings to the external thread end of the first shaft, and the internal threads of the two internally threaded shaft bushings to the internally threaded ends of the second and third shafts. This causes the first, second, and third shafts to be simultaneously stretched or compressed axially, thus compensating for axial errors during pipeline installation.

[0010] The radial deflection mechanism includes a left radial deflection unit and a right radial deflection unit with identical structures. The second handwheel in the right radial deflection unit is fixed to the first base plate after being connected to the second lead screw. The geared eccentric cam includes a gear, a stepped shaft, and an eccentric shaft. The gear segment of the first geared eccentric cam, after engaging with the second lead screw, passes through the through hole of the first base plate and is constrained and limited by the transition segment. The engaging segment can rotate freely on the through hole of the first base plate. The eccentric shaft passes through the panel and forms an eccentric structure with the panel. When the second handwheel rotates, it drives the second lead screw to rotate. The second lead screw drives the eccentric shaft on the first geared eccentric cam to rotate, thereby causing the panel to radially offset relative to the first base plate. The non-offset end of the panel is connected to the first base plate through a limiting screw.

[0011] Furthermore, the left radial deflection unit and the right radial deflection unit are symmetrically arranged on the first base plate.

[0012] Furthermore, the first base plate is provided with positioning holes, and four positioning pins pass through the pipeline compensator, the first base plate, and the second base plate in sequence to achieve positioning.

[0013] Furthermore, the telescopic distance of the axial telescopic mechanism is determined by the length of the external thread of the shaft assembly and the length of the internal thread of the geared bushing and the internal thread of the internal threaded bushing that are screwed to it.

[0014] Furthermore, the belt support pulley is provided with a first groove and a second groove, which are used to constrain the travel on both sides of the belt to prevent the belt from getting tangled or stuck during rotation.

[0015] Furthermore, there are two belt support pulleys, symmetrically arranged on the first base plate;

[0016] Furthermore, when radial deflection adjustment is required, select either the left radial deflection unit or the right radial deflection unit for single-measurement operation.

[0017] Furthermore, the first and second base plates are made of lightweight aluminum alloy material with good structural strength.

[0018] Furthermore, when the pipeline compensator is in operation, the axial compression shall not exceed 11mm, the tensile strength shall not exceed 5mm, and the radial bending angle shall not exceed 5°.

[0019] Furthermore, the first base plate and the second base plate are specifically horseshoe-shaped. The horseshoe-shaped notches on the first base plate and the second base plate are consistent with the shape of the straight pipe section of the pipeline compensator (non-corrugated pipe). When in use, the horseshoe-shaped notches on the first base plate and the second base plate can cover the straight pipe section of the pipeline compensator, which facilitates the assembly and fixing of the pipeline compensator.

[0020] Technical effects:

[0021] This invention, through the above-mentioned technical solution, can conveniently and quickly connect the auxiliary installation device to the product to be adjusted. Compared with the previous equipment that used a hydraulic drive device to drive the pipeline compensator to complete the extension and radial deflection, it has the characteristics of being lightweight, small in size, detachable, easy to use, easy to carry, and low in cost, making it very suitable for use in areas with limited conditions. The layout of various systems in an aircraft is very compact, especially the wings and engine nacelles, which contain wiring harnesses and pipelines of multiple systems. The design-reserved maintenance space is limited, and later maintenance is often carried out in a field with limited conditions. This device, which is easy to carry, small in size, lightweight, and simple to operate, has a huge advantage. After the product to be adjusted is installed together with the auxiliary installation device on the ground, and the fixed end of the product to be adjusted is connected and fixed to the pipeline on the aircraft, adjusting the first handwheel (3-1) can realize the extension / compression of the product to be adjusted along the product axis; adjusting the handwheel (3-2) or (3-3) can realize the radial deflection of the product to be adjusted, which greatly reduces the difficulty and labor intensity of workers and shortens the time cycle. Furthermore, the two sets of handwheels (3-2) and handwheel (3-3) complement each other. When one handwheel is in a narrow space and inconvenient to operate after the auxiliary device is installed, the other handwheel can be used to perform radial adjustment of the product to be adjusted. Attached Figure Description

[0022] Figure 1a A schematic diagram of the overall structure of the auxiliary installation device;

[0023] Figure 1b A second-view schematic diagram of the overall structure of the auxiliary installation device;

[0024] Figure 2 This is a schematic diagram of an axial telescopic mechanism;

[0025] Figure 3 Schematic diagram of an eccentric cam with gears;

[0026] Figure 4 Schematic diagram of a geared shaft bushing;

[0027] Figure 5 Schematic diagram of an internal threaded bushing;

[0028] Figure 6 This is a schematic diagram of a belt support pulley;

[0029] Figure 7 This is a schematic diagram of the shaft assembly;

[0030] Figure 8a This is a schematic diagram of an eccentric shaft;

[0031] Figure 8b This is a schematic diagram of the radial deflection mechanism;

[0032] Figure 9 A schematic diagram showing the axial expansion and contraction after the installation of the pipeline compensator;

[0033] Figure 10 A schematic diagram showing the radial deflection of the pipeline compensator after installation.

[0034] in:

[0035] 1-1 First base plate, 1-2 Second base plate;

[0036] 2-panel;

[0037] 3-1 First turn, 3-2 Second turn, 3-3 Third turn;

[0038] 4-axis assembly, 4-1 first axis, 4-2 second axis, 4-3 third axis;

[0039] 5- Gear bushing, 5-3 First groove, 5-4 First connecting shaft;

[0040] 6-Internal threaded bushing, 6-2 Second groove, 6-3 Second connecting shaft;

[0041] 7-Eccentric cam with gear, 7-2 Large step, 7-3 Small step, 7-4 Eccentric shaft;

[0042] 8-Belt;

[0043] 9-Belt support pulley, 9-1 First groove, 9-2 Second groove, 9-3 Third connecting shaft;

[0044] 10-Screw assembly. Detailed Implementation

[0045] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0046] The features and illustrative embodiments of various aspects of the present invention will now be described in detail. In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the invention. However, it will be apparent to those skilled in the art that the invention may be practiced without requiring some of these specific details. The following description of embodiments is merely intended to provide a better understanding of the invention by illustrating examples of the invention. The invention is by no means limited to any specific setup and method set forth below, but covers any improvements, substitutions, and modifications to the structures, methods, and devices without departing from the spirit of the invention. In the following description, well-known structures and techniques are not shown to avoid unnecessarily obscuring the invention.

[0047] In the description of this invention, it should be noted that the directions or positional relationships indicated by terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" are based on the stated directions or positional relationships and are only for the convenience of describing and simplifying the invention, and should not be construed as limiting the invention. Furthermore, the use of ordinal numbers (e.g., "first and second," etc.) is for distinguishing objects and is not limited to this order, and should not be construed as indicating or implying relative importance.

[0048] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly, encompassing both direct connection and indirect connection via an intermediate medium. Those skilled in the art can understand the specific meaning of these terms in this invention based on the specific circumstances.

[0049] It should be noted that, unless otherwise specified, the embodiments of the present invention and the features thereof can be combined with each other, and the various embodiments can be referenced and cited in each other. The present invention will now be described in detail with reference to and in conjunction with the embodiments.

[0050] Example 1

[0051] An auxiliary installation device for achieving axial tension and compression, and radial offset.

[0052] It includes an axial telescopic mechanism and a radial deflection mechanism that share a common first base plate (1-1). The axial telescopic mechanism includes a second base plate (1-2), a first handwheel (3-1), a gear bushing (5), an internal thread bushing (6), a belt (8), a belt support wheel (9), a first lead screw, and a shaft assembly 4 (including a first shaft (4-1), a second shaft (4-2), and a third shaft (4-3) with external threads on one end).

[0053] The bushing ends of the geared bushing (5) and the two internally threaded bushings (6) are fixed on the first base plate (1-1). The internally threaded end of the geared bushing (5) is screwed to the externally threaded end of the first shaft (4-1). The two internally threaded bushings (6) are respectively screwed to the internally threaded ends of the second shaft (4-2) and the third shaft (4-3). The other ends of the first shaft (4-1), the second shaft (4-2), and the third shaft (4-3) are respectively connected to the second base plate (1-2). The first handwheel (3-1) is fixed on the first base plate (1-1), and the first screw on the first handwheel (3-1) can rotate in cooperation with the gear end on the geared bushing (5). The belt (8) is installed in the second groove of the geared bushing (5) and the two internally threaded bushings (6). And through the constraint of the belt support wheel (9), both sides of the belt (8) are overlapped on the same side of the belt support wheel (9); rotate the first handwheel (3-1), the first screw drives the gear bushing (5) to rotate through gear engagement, the belt (8) on the gear bushing (5) rotates, the belt (8) drives the two internal thread bushings (6) to rotate, and then through the internal thread of the gear bushing (5) and the external thread end of the first shaft (4-1) to drive, and the internal threads on the two internal thread bushings (6) and the internal thread ends of the second shaft (4-2) and the third shaft (4-3) to drive; thereby driving the first shaft (4-1), the second shaft (4-2) and the third shaft (4-3) to be stretched or compressed axially at the same time, so as to compensate for the axial error in the pipeline installation process.

[0054] The radial deflection mechanism includes a left radial deflection unit and a right radial deflection unit with the same structure; the second handwheel (3-2) in the right radial deflection unit is fixed on the first base plate (1-1) after being connected to the second lead screw. The geared eccentric cam (7) includes a gear, a stepped shaft, and an eccentric shaft; the gear section of the first geared eccentric cam (7) passes through the through hole of the first base plate (1-1) after cooperating with the second lead screw, and is constrained and limited by the transition section. The cooperating section can rotate freely on the through hole of the first base plate (1-1). The eccentric shaft (7-4) passes through the panel (2) and forms an eccentric structure with the panel (2). When the second handwheel (3-2) rotates, it drives the second lead screw to rotate. The second lead screw drives the eccentric shaft on the first geared eccentric cam (7) to rotate, thereby causing the panel (2) to be radially offset relative to the first base plate (1-1). The non-offset end of the panel (2) is connected to the first base plate (1-1) through a limiting screw.

[0055] In one embodiment of the present invention, more specifically, the left radial deflection unit and the right radial deflection unit are symmetrically arranged on the first base plate (1-1).

[0056] In one embodiment of the present invention, more specifically, the first base plate (1-1) is provided with positioning holes, and four positioning pins pass through the pipeline compensator, the first base plate (1-1), and the second base plate (1-2) in sequence to achieve positioning.

[0057] In one embodiment of the present invention, more specifically, the telescopic distance of the axial telescopic mechanism is determined by the length of the external thread of the shaft assembly (4) and the length of the internal thread of the gear bushing (5) and the internal thread bushing (6) that are screwed together with it.

[0058] In one embodiment of the present invention, more specifically, the belt support wheel (9) is provided with a first groove (9-1) and a second groove (9-2). The first groove (9-1) and the second groove (9-2) are respectively used to constrain the travel on both sides of the belt (8) to avoid knotting or jamming during the rotation of the belt (8).

[0059] In one embodiment of the present invention, more specifically, there are two belt support pulleys (9), symmetrically arranged on the first base plate (1-1);

[0060] In one embodiment of the present invention, more specifically, when radial deflection adjustment is required, either the left radial deflection unit or the right radial deflection unit is selected for single-measurement operation.

[0061] In one embodiment of the present invention, more specifically, the first base plate (1-1) and the second base plate (1-2) are made of lightweight aluminum alloy material with good structural strength.

[0062] In one embodiment of the present invention, more specifically, the axial compression of the pipeline compensator shall not exceed 11 mm, the tensile amount shall not exceed 5 mm, and the radial bending angle shall not exceed 5° when the pipeline compensator is in operation.

[0063] In one embodiment of the present invention, more specifically, the first base plate (1-1) and the second base plate (1-2) are horseshoe-shaped. The horseshoe-shaped notches on the first base plate (1-1) and the second base plate (1-2) are consistent with the shape of the straight pipe section of the pipeline compensator (non-corrugated pipe). When in use, the horseshoe-shaped notches on the first base plate (1-1) and the second base plate (1-2) can cover the straight pipe section of the pipeline compensator, which facilitates the assembly and fixing of the pipeline compensator.

[0064] Example 2

[0065] An auxiliary installation device for axial tension and compression and radial offset includes a first base plate (1-1), a second base plate (1-2), a panel (2), a first handwheel (3-1), a second handwheel (3-2), a third handwheel (3-3), a shaft assembly (4), a geared bushing (5), an internally threaded bushing (6), a geared eccentric cam (7), a belt (8), a belt support wheel (9), and a first lead screw. The first base plate (1-1) and the second base plate (1-2) are connected by the shaft assembly (4), the geared bushing (5), and the internally threaded bushing (6). The first shaft (4-1) at the top is threadedly connected to the geared bushing (5), and the two second and third shafts (4-2, 4-3) at the bottom are connected by the internally threaded bushing (6). The gear on the geared bushing (5) engages with the first lead screw, and the first lead screw is connected to the first handwheel (3-1). The protrusion on the geared bushing (5) is connected to the belt (8).

[0066] The horseshoe-shaped first base plate (1-1) has multiple sets of round holes, including 3-Ф20mm, 4-Ф12mm, and 2-Ф8mm round holes; the panel (2) has round holes of 4-Ф6mm and 2-Ф5mm; the bushings of the gear bushing (5) and the two internally threaded bushings (6) are fixed in the 3-Ф20mm holes on the first base plate (1-1); one end of the three-piece shaft assembly (4) has an external thread; the gear bushing (5) and the two internally threaded bushings (6) have internal threads; the external thread on one side of the three-piece shaft assembly (4) is connected to the first base plate (1-1) after being threaded with the gear bushing (5) and the two internally threaded bushings (6).

[0067] like Figure 2 Rotate the first handwheel (3-1), and the lead screw under the first handwheel (3-1) will rotate in conjunction with the geared shaft bushing (5), causing the geared shaft bushing (5) to rotate on the first base plate (1-1). Through the transmission of the belt (8) installed in the second groove on the geared shaft bushing (5) and the two internally threaded shaft bushings (6), the belt (8) drives the geared shaft bushing (5) and the two internally threaded shaft bushings (6) to rotate in the 3Ф20mm hole on the first base plate (1-1) in the same direction and at the same speed. Then, through the thread transmission between the internal threads of the holes on the geared shaft bushing (5) and the two internally threaded shaft bushings (6) and the external threads of the three shaft assemblies (4), the three shaft assemblies (4) are driven to complete the axial stretching or compression, and finally realize the compensation for the axial error in the pipeline installation process.

[0068] like Figure 3 The geared eccentric cam (7) is a part that combines a gear, a stepped shaft and an eccentric shaft into one unit.

[0069] As shown in Figure 8, the gear on the geared eccentric cam (7) is connected to the second lead screw under the second handwheel (3-2); the small diameter shaft in the stepped shaft passes through the Ф12mm hole on the first base plate (1-1) and can rotate freely in the Ф12mm hole; the eccentric shaft on the first geared eccentric cam (7) is connected to the panel (2), and the surface of the eccentric shaft in contact with the panel (2) is an eccentric structure. When the first geared eccentric cam (7) rotates, the first geared eccentric cam (7) drives the panel (2) to move laterally (i.e., radially offset) relative to the first base plate (1-1); when the second handwheel (3-2) is rotated, the second lead screw on one side of the handwheel rotates in cooperation with the gear part on the first geared eccentric cam (7), driving the eccentric shaft at the end of the first geared eccentric cam (7) to rotate, thereby causing the panel (2) to swing relative to the first base plate (1-1), causing the moving end of the pipeline compensator to swing at a certain angle relative to the stationary end, thereby compensating for the radial error during the pipeline installation process.

[0070] In addition, the principle of radial oscillation of the mechanism on one side of the third handwheel (3-3) is the same as that of the second handwheel (3-2). In actual use, the handwheel on one side is selected for operation according to its ease of operation.

[0071] The belt support wheel (9) is installed and fixed in the 2-Ф8mm hole on the first base plate (1-1); the belt (8) rotates in the first or second slot on the gear bushing (5), the two internal thread bushings (6), and the belt support wheel (9), so that the gear bushing (5) / the internal thread bushing (6) rotate synchronously in the 3-Ф20mm round hole on the first base plate (1-1), so as to ensure that the external thread part on the three shaft assembly (4) moves synchronously along the axial direction on the internal thread part on the gear bushing (5) and the two internal thread bushings (6);

[0072] Additionally, the horseshoe-shaped first base plate (1-1) has 3-Ф20mm and 4-Ф6mm round holes; after connecting the first base plate (1-1) to the 3-shaft assembly (4), the first base plate (1-1), the panel (2), and the second base plate (1-2) are respectively wedged into the gap between the flange and the bellows on the side of the product to be adjusted, and then the connecting rod on the product to be adjusted is passed through the 2-Ф12mm and 2-Ф6mm holes on the first base plate (1-1) and the 4-Ф6mm hole on the panel (2) to install and fix the product to be adjusted on the auxiliary installation device;

[0073] As shown in Figure 1 to Figure 2 As shown:

[0074] When using, such as Figure 10The product to be adjusted is inserted into the notches of the first base plate (1-1) and the second base plate (1-2) of the device of the present invention. The front and rear end baffles of the product to be adjusted are tightly attached to the first base plate (1-1) and the second base plate (1-2) respectively. Then, the product to be adjusted is installed into the device of the present invention by means of the four limiting screws of the product to be adjusted and the self-locking nuts. Then, the rear end pipe interface of the product to be adjusted is connected to the pipeline by means of clamps to form the fixed stationary end of the product to be adjusted.

[0075] When the product to be adjusted needs to achieve stretching / compression, rotate the first handwheel (3-1). The first lead screw under the first handwheel (3-1) rotates in conjunction with the geared bushing (5), causing the geared bushing (5) to rotate on the first base plate (1-1). Through the transmission of the belt (8) installed in the second groove on the geared bushing (5) and the two internally threaded bushings (6), the belt (8) drives the geared bushing (5) and the two internally threaded bushings (6) to rotate in the same direction and at the same speed in the 3Ф20mm hole on the first base plate (1-1), and then through the geared bushing (5). The thread transmission between the internal threads of the holes on the two internally threaded bushings (6) and the external threads of the three shaft assemblies (4) is achieved by the three shaft assemblies (4) being screwed in or out of the gear bushings (5) and the two internally threaded bushings (6), thereby making the gap between the first base plate (1-1) smaller or larger than that between the second base plate (1-2). Then, the first base plate (1-1) drives the non-fixed stationary end of the product to be adjusted to achieve axial stretching or compression. When the non-fixed stationary end of the product to be adjusted is connected to another pipeline interface of the machine body, the axial error during the pipeline installation process is compensated.

[0076] When the product to be adjusted needs to be deflected, the second handwheel (3-2) is turned. The second screw on one side of the second handwheel rotates in conjunction with the gear part of the first geared eccentric cam (7), which drives the eccentric shaft at the end of the first geared eccentric cam (7) to rotate, thereby causing the panel (2) to swing relative to the first base plate (1-1). The panel (2) causes the non-fixed stationary end of the product to be adjusted, which is fixed on it, to swing at a certain angle. When the non-fixed stationary end of the product to be adjusted is connected to another pipeline interface of the machine body, the radial error compensation during the pipeline installation process is finally achieved.

[0077] The above detailed embodiments are a description of the present invention. It should not be considered that the specific embodiments of the present invention are limited to these descriptions. For those skilled in the art, several simple deductions and substitutions can be made without departing from the concept of the present invention, and all of these should be considered to fall within the protection scope of the present invention.

Claims

1. An auxiliary mounting device for enabling axial tensile compression, radial deflection, characterized in that, The axial telescopic mechanism and the radial deflection mechanism share the first base plate, the axial telescopic mechanism comprises a second base plate, a first hand wheel, a toothed gear shaft bushing, two internally threaded shaft bushings, a belt, a belt support wheel, a first lead screw and a shaft assembly; The toothed gear shaft bushing and the shaft sleeve ends of the two internally threaded shaft bushings are fixed on the first base plate, the internally threaded end of the toothed gear shaft bushing is screwed with the externally threaded end of the first shaft, the internally threaded ends of the two internally threaded shaft bushings are screwed with the internally threaded ends of the second shaft and the third shaft respectively, the other ends of the first shaft, the second shaft and the third shaft are connected with the second base plate respectively, the first hand wheel is fixed on the first base plate, the first lead screw on the hand wheel can rotate with the gear end of the toothed gear shaft bushing, the belt is installed in the second grooves of the toothed gear shaft bushing and the two internally threaded shaft bushings, and the two sides of the belt are lapped on the same side of the belt support wheel through the constraint of the belt support wheel; rotating the first hand wheel, the first lead screw drives the toothed gear shaft bushing to rotate through gear cooperation, the belt on the toothed gear shaft bushing rotates, the belt drives the two internally threaded shaft bushings to rotate, and then the internally threaded ends of the two internally threaded shaft bushings are transmitted through the internally threaded ends of the toothed gear shaft bushing and the externally threaded end of the first shaft, and the internally threaded ends of the two internally threaded shaft bushings are transmitted through the internally threaded ends of the two internally threaded shaft bushings and the internally threaded ends of the second shaft and the third shaft; thereby driving the first shaft, the second shaft and the third shaft to stretch or compress simultaneously along the axial direction; The radial deflection mechanism comprises a left radial deflection unit and a right radial deflection unit which are the same in structure; The second hand wheel in the right radial deflection unit is connected with the second lead screw and then fixed on the first base plate, the toothed gear eccentric cam comprises a gear, a large step, a small step and an eccentric shaft; The gear segment of the first toothed gear eccentric cam is passed through the through hole of the first base plate after being matched with the second lead screw, and is limited and positioned by the large step, the small step can rotate freely on the through hole of the first base plate, the eccentric shaft passes through the panel and forms an eccentric structure with the panel, when the second hand wheel rotates, the second lead screw rotates, the second lead screw drives the eccentric shaft on the first toothed gear eccentric cam to rotate, and the panel is deflected radially compared with the first base plate; the non-deflection end of the panel is connected to the first base plate through a limiting screw.

2. The apparatus of claim 1, wherein, The left radial deflection unit and the right radial deflection unit are symmetrically arranged on the first base plate.

3. The apparatus of claim 1, wherein, Positioning holes are arranged on the first base plate, and four positioning pins are sequentially passed through the pipeline compensator, the first base plate and the second base plate to realize positioning.

4. The apparatus of claim 1, wherein, The telescopic distance of the axial telescopic mechanism is determined by the length of the externally threaded of the shaft assembly and the length of the internally threaded of the toothed gear shaft bushing and the internally threaded shaft bushing which are screwed with the externally threaded.

5. The apparatus of claim 1, wherein, First and second notches are arranged on the belt support wheel, and the first and second notches are respectively used to constrain the travel of the two sides of the belt to avoid knotting or jamming of the belt during rotation.

6. The apparatus of claim 5, wherein, The belt support wheel is two, and is symmetrically arranged on the first base plate.

7. The apparatus of claim 1, wherein, When radial deflection adjustment is needed, unilateral operation is performed on the left radial deflection unit or the right radial deflection unit.

8. The apparatus of claim 1, wherein, The first base plate and the second base plate are made of aluminum alloy material.

9. The apparatus of claim 1, wherein, When the pipeline compensator works, the axial compression amount is not greater than 11 mm, the stretching amount is not greater than 5 mm, and the radial bending angle is not greater than 5°.

10. The apparatus of claim 1, wherein, The first base plate and the second base plate are specifically horseshoe-shaped.

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