Spray gun mechanism, sandblasting device and aircraft horizontal stabilizer shaft machining equipment

Abstract

This utility model discloses a spray gun mechanism, a sandblasting device, and a processing equipment for an aircraft horizontal stabilizer shaft, relating to the field of abrasive blasting equipment technology. The aircraft horizontal stabilizer shaft has a cavity and openings at both ends, which communicate with the cavity. The spray gun mechanism is used in a sandblasting device for sandblasting the aircraft horizontal stabilizer shaft. It includes a support, a moving mechanism, and a spray gun assembly. The support is mounted to the housing of the sandblasting device, which has a sandblasting chamber for placing the aircraft horizontal stabilizer shaft. The moving mechanism is mounted on the support along a first direction. The spray gun assembly includes a sandblasting gun rod and a nozzle. The sandblasting gun rod is mounted on the support along the first direction and has an inlet end and an outlet end. The inlet end is connected to the moving mechanism, and the outlet end movably passes through a through hole in the support and is fitted with the nozzle. The nozzle is used to extend into the cavity of the aircraft horizontal stabilizer shaft and spray sand onto its inner wall. The spray gun mechanism proposed in this utility model solves the problem of inconvenient sandblasting processing of the inner wall of an aircraft horizontal stabilizer shaft.

Description

Technical Field

[0001] This utility model relates to the field of abrasive blasting equipment technology, and in particular to a spray gun mechanism, a sandblasting device, and an aircraft horizontal stabilizer shaft processing equipment. Background Technology

[0002] The horizontal stabilizer shaft of an aircraft is a core load-bearing and moving component that is crucial to flight safety. Its high length-to-diameter ratio hollow structure and the high fatigue performance and corrosion resistance requirements of its inner wall determine that sandblasting of the inner wall is an essential and critical process. However, the small openings at both ends of the horizontal stabilizer shaft make sandblasting of the inner wall inconvenient. Utility Model Content

[0003] The main purpose of this utility model is to propose a spray gun mechanism, a sandblasting device, and a processing equipment for the aircraft horizontal stabilizer shaft, aiming to solve the problem of inconvenient processing of the inner wall of the aircraft horizontal stabilizer shaft.

[0004] To achieve the above objectives, the spray gun mechanism proposed in this utility model includes:

[0005] A bracket for mounting a housing in a sandblasting device, the housing having a sandblasting chamber for placing an aircraft horizontal stabilizer shaft, the aircraft horizontal stabilizer shaft having a cavity and openings at both ends in the length direction and communicating with the cavity, and the bracket having through holes.

[0006] A moving mechanism is mounted on the bracket along a first direction;

[0007] A spray gun assembly includes a sandblasting gun rod and a nozzle. The sandblasting gun rod is mounted on the bracket and extends along a first direction. The sandblasting gun rod has a sand inlet end and a sand outlet end. The sand inlet end is connected to the bracket via the moving mechanism and is used to communicate with a sand storage mechanism. The sand outlet end movably passes through the through hole and is provided with the nozzle. The nozzle is used to extend into the cavity of the aircraft horizontal stabilizer shaft and spray sand toward the inner wall of the cavity.

[0008] In one embodiment, the moving mechanism includes a mounting base movably disposed on the bracket along a first direction, the sand inlet end of the sandblasting gun rod is connected to the mounting base, and the sand outlet end is disposed through the through hole along the first direction.

[0009] In one embodiment, the moving mechanism further includes a walking module and a driver. The walking module is disposed on the bracket along a first direction, and the driver is disposed at one end of the bracket away from the through hole. The mounting base is movably disposed on the walking module and drivenly connected to the driver.

[0010] In one embodiment, the bracket has a connecting portion at one end away from the driver, and the through hole is provided on the connecting portion and extends through it in a first direction. The connecting portion is used to connect to the housing of the sandblasting device.

[0011] In one embodiment, the spray gun mechanism further includes a connector pipe, which is disposed on the mounting base and has one end connected to the sand storage mechanism and the other end connected to the end of the sandblasting gun rod away from the nozzle.

[0012] In one embodiment, the spray gun mechanism further includes a connector, and both ends of the connector pipe are detachably connected to the mounting base through the connector. The connector pipe extends along the first direction, and the axial direction of the connector pipe coincides with the axial direction of the through hole.

[0013] In one embodiment, the sandblasting gun rod reciprocates along the first direction at a speed of a, wherein the value of a satisfies: 0 ≤ a ≤ 3 m / min.

[0014] This utility model also proposes a sandblasting device, including a housing, a sand storage mechanism, and a spray gun mechanism as described in any of the foregoing embodiments. The spray gun mechanism is located in the housing, and the end of the sandblasting gun rod away from the nozzle is connected to the sand storage mechanism. The sand storage mechanism is used to supply sand to the sandblasting gun rod.

[0015] In one embodiment, the bracket is installed on the top of the housing, and the top of the housing is provided with a mounting hole communicating with the sandblasting chamber. The sandblasting gun rod is movably inserted through the through hole and the mounting hole in sequence, so that the nozzle is movably disposed in the sandblasting chamber.

[0016] This utility model also proposes an aircraft horizontal stabilizer shaft processing equipment, including a sand circulation device, a dust removal device, and a sandblasting device as described in any of the foregoing embodiments, wherein the sandblasting device is sequentially connected to the sand circulation device and the dust removal device.

[0017] This utility model's technical solution utilizes a movable spray gun mechanism to process the aircraft horizontal stabilizer shaft, making processing more convenient. Specifically, the aircraft horizontal stabilizer shaft has a cavity and openings at both ends along its length, which communicate with the cavity. The spray gun mechanism is used in a sandblasting device for sandblasting the aircraft horizontal stabilizer shaft, and includes a support, a movable mechanism, and a spray gun assembly. The support is mounted to the housing of the sandblasting device, which has a sandblasting chamber for placing the aircraft horizontal stabilizer shaft. The movable mechanism is mounted on the support along a first direction. The spray gun assembly includes a sandblasting gun rod and a nozzle. The sandblasting gun rod is mounted on the support along the first direction and has a sand inlet end and a sand outlet end. Its sand inlet end is connected to the movable mechanism, and the sand outlet end movably passes through a through hole in the support and is fitted with the nozzle. The nozzle is used to extend into the cavity of the aircraft horizontal stabilizer shaft and spray sand onto its inner wall. The spray gun mechanism proposed in this utility model solves the problem of inconvenient sandblasting processing of the inner wall of the aircraft horizontal stabilizer shaft. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0019] Figure 1 A schematic diagram of an embodiment of the aircraft horizontal stabilizer shaft processing equipment provided by this utility model;

[0020] Figure 2 A schematic diagram of another embodiment of the aircraft horizontal stabilizer shaft processing equipment provided by this utility model;

[0021] Figure 3 A schematic diagram of a structure of an embodiment of the spray gun mechanism provided by this utility model;

[0022] Figure 4 for Figure 3 A schematic diagram of the disassembled structure of the spray gun mechanism;

[0023] Figure 5 This utility model provides an internal structural schematic diagram of an embodiment of the horizontal stabilizer shaft of an aircraft.

[0024] Explanation of icon numbers:

[0025] 100. Aircraft horizontal stabilizer shaft processing equipment; 1. Sandblasting device; 11. Housing; 11a. Sandblasting chamber; 12. Spray gun mechanism; 121. Bracket; 121a. Through hole; 1211. Connecting part; 122. Moving mechanism; 1221. Mounting base; 1222. Walking module; 123. Spray gun assembly; 1231. Sandblasting gun rod; 1232. Nozzle; 124. Connecting pipe; 125. Connecting parts; 126. Material conveying pipe; 2. Sand circulation device; 21. Sand storage mechanism; 22. Separation mechanism; 3. Dust removal device;

[0026] 200, horizontal stabilizer shaft of an aircraft; 200a, cavity; 200b, opening.

[0027] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0029] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0030] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0031] This utility model proposes a spray gun mechanism.

[0032] like Figure 5 As shown, the aircraft horizontal stabilizer shaft 200 has a cavity 200a and openings 200b at both ends along its length. The openings 200b communicate with the cavity 200a of the aircraft horizontal stabilizer shaft 200. (See also...) Figures 1 to 4 In one embodiment of this utility model, the spray gun mechanism 12 is applied to a sandblasting device 1 for sandblasting an aircraft horizontal stabilizer shaft 200. It includes a bracket 121, a moving mechanism 122, and a spray gun assembly 123. The bracket 121 is used to install onto the housing 11 of the sandblasting device 1. The housing 11 has a sandblasting chamber 11a for placing the aircraft horizontal stabilizer shaft 200. The moving mechanism 122 is disposed on the bracket 121 along a first direction. The spray gun assembly 123 includes a sandblasting gun rod 1231 and a nozzle 1232. The sandblasting gun rod 1231 is disposed on the bracket 121 along the first direction and has a sand inlet end and a sand outlet end. Its sand inlet end is connected to the moving mechanism 122. The sand outlet end can movably pass through the through hole 121a of the bracket 121 and install the nozzle 1232. The nozzle 1232 is used to extend into the cavity 200a of the aircraft horizontal stabilizer shaft 200 and spray sand towards the inner wall. The spray gun mechanism 12 proposed in this utility model is used to solve the problem of inconvenient sandblasting of the inner wall of the horizontal stabilizer shaft 200 of an aircraft.

[0033] It should be noted that the bracket 121 can be located inside or outside the sandblasting chamber 11a of the housing 11. The sand inlet end of the sandblasting gun rod 1231 is used to communicate with the sand storage mechanism 21, which is used to supply sand to the sandblasting gun rod 1231. The sandblasting gun rod 1231 is movable along the first direction to drive the nozzle 1232 at the sand outlet end to enter and exit the cavity 200a of the aircraft horizontal stabilizer shaft 200 through the opening 200b, which can improve the processing efficiency of the aircraft horizontal stabilizer shaft 200 and make the operation convenient and quick. The first direction can be set as the height direction. In some other embodiments of this utility model, the first direction can also be set as the horizontal direction or form an angle with the height direction. It is necessary to ensure that the sandblasting gun rod 1231 and the axis of the aircraft horizontal stabilizer shaft 200 are set along the first direction. No specific limitation is made here.

[0034] After the nozzle 1232 blasts the inner wall of the cavity 200a of the aircraft horizontal stabilizer shaft 200, it can remove the oxide scale, impurities, burrs and other substances on the inner wall surface, making the inner wall surface of the cavity 200a rougher. This is beneficial for dispersing or eliminating the internal stress on the workpiece surface and improving the structural strength of the aircraft horizontal stabilizer shaft 200.

[0035] like Figure 3 and Figure 4As shown, in one embodiment of this utility model, the moving mechanism 122 includes a mounting base 1221, which is movably mounted on the bracket 121 along a first direction. The sand inlet end of the sandblasting gun rod 1231 is connected to the mounting base 1221, and the sand outlet end of the sandblasting gun rod 1231, away from the mounting base 1221, passes through the through hole 121a along the first direction and is provided with a nozzle 1232. When the mounting base 1221 moves along the first direction on the bracket 121, it can drive the sandblasting gun rod 1231 to move along the first direction, thereby driving the nozzle 1232 to enter and exit the cavity 200a of the aircraft horizontal stabilizer shaft 200. It should be noted that the mounting base 1221 can be connected to the bracket 121 through components such as the walking module 1222, or a matching structure can be adopted, such as a track between the mounting base 1221 and the bracket 121 and a slider connected to the track, so that the mounting base 1221 can be slidably connected to the bracket 121.

[0036] like Figure 4 As shown, in one embodiment of this utility model, the moving mechanism 122 further includes a walking module 1222 and a driver. Specifically, the moving mechanism 122 is a linear walking module 1222. The walking module 1222 is mounted on the bracket 121 along a first direction, and a driver (not shown) is installed at one end of the walking module 1222. The mounting base 1221 is movably mounted on the walking module 1222 and drivenly connected to the driver. The driver can drive the mounting base 1221 to reciprocate along the first direction on the walking module 1222. Furthermore, the driver can be a servo motor to achieve precise positioning of the mounting base 1221, which is beneficial to improving the machining accuracy of the aircraft horizontal stabilizer shaft 200.

[0037] like Figure 3 and Figure 4 As shown, in one embodiment of this utility model, the end of the bracket 121 near the housing 11 is bent to form a connecting portion 1211. This connecting portion 1211 makes the entire bracket 121 "L" shaped. The connecting portion 1211 is a plate structure for connecting with the housing 11 of the sandblasting device 1. The connecting portion 1211 is provided with multiple screw holes for bolts and other components to pass through and fix the spray gun mechanism 12 to the housing 11. Furthermore, a through hole 121a is provided through the connecting portion 1211 along a first direction. The diameter of the through hole 121a is slightly larger than the diameter of the sandblasting gun rod 1231, which can limit the movement of the sandblasting gun rod 1231 and prevent it from deviating during sandblasting. In addition, the structure of the connecting portion 1211 can increase the contact area with the housing 11, which is beneficial to improving the installation stability of the spray gun mechanism 12.

[0038] like Figure 2 and Figure 4As shown, the spray gun mechanism 12 also includes a connector pipe 124, which is mounted on the mounting base 1221. The sand inlet end of the sandblasting gun rod 1231 is connected to one end of the connector pipe 124, and the end of the connector pipe 124 away from the sandblasting gun rod 1231 is connected to the sand storage mechanism 21 through the feed pipe 126. The sand storage mechanism 21 feeds high-speed sand to the sandblasting assembly through the feed pipe 126. The sand is sprayed out from the nozzle 1232 to process the inner wall of the aircraft horizontal stabilizer shaft 200. The connector pipe 124 is used to connect the sandblasting gun rod 1231 and the feed pipe 126 to connect the two. It can be understood that by setting the connector pipe 124, different types of sandblasting gun rods 1231 and feed pipes 126 can be disassembled and replaced, and the assembly is flexible and quick to install.

[0039] like Figure 4 As shown, in one embodiment of this utility model, the spray gun mechanism 12 further includes connecting members 125. Specifically, two connecting members 125 are provided and are detachably connected to the mounting base 1221 by screws or other components. The two connecting members 125 are spaced apart on the mounting base 1221 along a first direction. Each connecting member 125 is provided with a through hole, the axis of which coincides with the axis of the through hole 121a. The connector pipe 124 passes through the through holes of the two connecting members 125 and extends along the first direction. It can be understood that by setting the connecting members 125 to be detachably connected to the mounting base 1221, the entire spray gun mechanism 12 is modularly configured, which facilitates the assembly and replacement of its components.

[0040] In one embodiment of this utility model, the sandblasting gun rod 1231 reciprocates along a first direction, with a speed value of 'a', which satisfies 0 ≤ a ≤ 3 m / min. It should be noted that if the sandblasting gun rod 1231 moves too fast, the energy of the sand particles impacting the horizontal stabilizer shaft will be excessive, potentially causing localized temperature increases and resulting in material deformation or damage. Controlling the speed of the sandblasting gun rod 1231 between 0 and 3 m / min ensures both efficient sandblasting and protection of the structural integrity of the horizontal stabilizer shaft. Furthermore, the effective stroke of the sandblasting gun rod 1231 can be set to 400 mm-800 mm, which can be determined based on the length of the internal cavity 200a of the aircraft's horizontal stabilizer shaft 200; no specific limitation is made here.

[0041] This utility model also proposes a sandblasting device 1, including a housing 11, a sand storage mechanism 21, and a spray gun mechanism 12 as described in any of the aforementioned embodiments. The spray gun mechanism 12 is disposed in the housing 11, and the end of the sandblasting gun rod 1231 away from the nozzle 1232 is connected to the sand storage mechanism 21. The sand storage mechanism 21 is used to convey sand to the sandblasting gun rod 1231. It should be noted that the sand storage mechanism 21 can be a conventional sandblasting machine, which can convey the sand to the spray gun assembly 123 at high speed. The sand stored in the sand storage mechanism 21 is generally brown corundum, but it can also be sand such as quartz sand or steel grit.

[0042] like Figure 1 and Figure 2 As shown, in one embodiment of this utility model, the aircraft horizontal stabilizer shaft 200 is placed in the sandblasting chamber 11a of the housing 11 along a first direction. The bracket 121 is located on the top of the housing 11. A mounting hole (not shown) is provided on the housing 11 at the position corresponding to the through hole 121a. The sandblasting gun rod 1231 passes through the through hole 121a and the mounting hole along the first direction and extends into the sandblasting chamber 11a. The nozzle 1232 enters the cavity 200a of the aircraft horizontal stabilizer shaft 200 from the upper end opening 200b to perform sandblasting. The generated sandblasting waste can be discharged from the cavity 200a from the lower end opening 200b of the aircraft horizontal stabilizer shaft 200 to prevent blockage.

[0043] This utility model also proposes an aircraft horizontal stabilizer shaft processing equipment 100, which includes a sand recycling device 2, a dust removal device 3, and a sandblasting device 1. The specific structure of the sandblasting device 1 is as described in the above embodiments. Since this aircraft horizontal stabilizer shaft processing equipment 100 adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here. In this embodiment, the sand recycling device includes a sand storage mechanism 21 and a separation mechanism 22. The separation mechanism 22 is used to separate the sandblasting waste generated by the sandblasting device 1 into sand and dust, and to recycle the sand to the sand storage mechanism 21, while the dust is transported to the dust removal mechanism for dust removal.

[0044] The above description is merely an exemplary embodiment of the present utility model and does not limit the scope of protection of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the scope of protection of the present utility model.

Claims

1. A kind of spray gun mechanism, it is applied to the sand blasting device of the sand blasting of aircraft tail large axle, it is characterized in that, include: A bracket for mounting a housing in a sandblasting device, the housing having a sandblasting chamber for placing an aircraft horizontal stabilizer shaft, the aircraft horizontal stabilizer shaft having a cavity and openings at both ends in the length direction and communicating with the cavity, and the bracket having through holes. A moving mechanism is mounted on the bracket along a first direction; A spray gun assembly includes a sandblasting gun rod and a nozzle. The sandblasting gun rod is mounted on the bracket and extends along a first direction. The sandblasting gun rod has a sand inlet end and a sand outlet end. The sand inlet end is connected to the bracket via the moving mechanism and is used to communicate with a sand storage mechanism. The sand outlet end movably passes through the through hole and is provided with the nozzle. The nozzle is used to extend into the cavity of the aircraft horizontal stabilizer shaft and spray sand toward the inner wall of the cavity.

2. The lance mechanism of claim 1, wherein, The moving mechanism includes a mounting base, which is movably mounted on the bracket along a first direction. The sand inlet end of the sandblasting gun rod is connected to the mounting base, and the sand outlet end is provided through the through hole along the first direction.

3. The lance mechanism of claim 2, wherein, The moving mechanism further includes a walking module and a driver. The walking module is disposed on the bracket along a first direction, and the driver is disposed at one end of the bracket away from the through hole. The mounting base is movably disposed on the walking module and drivenly connected to the driver.

4. The lance mechanism of claim 3, wherein, The bracket has a connecting part at one end away from the driver, and the through hole is provided on the connecting part and extends through in a first direction. The connecting part is used to connect to the housing of the sandblasting device.

5. The lance mechanism of claim 2, wherein, The spray gun mechanism also includes a connector pipe, which is located on the mounting base and has one end connected to the sand storage mechanism and the other end connected to the end of the sandblasting gun rod away from the nozzle.

6. The lance mechanism of claim 5, wherein, The spray gun mechanism also includes a connector, and both ends of the connector pipe are detachably connected to the mounting base through the connector. The connector pipe extends along the first direction, and the axial direction of the connector pipe coincides with the axial direction of the through hole.

7. The lance mechanism of any one of claims 1 to 6, wherein, The sandblasting gun rod reciprocates along the first direction at a speed of a, where the value of a satisfies: 0 ≤ a ≤ 3 m / min.

8. A sandblasting device, characterized in that It includes a housing, a sand storage mechanism, and a spray gun mechanism as described in any one of claims 1 to 7, wherein the spray gun mechanism is disposed in the housing, and the end of the sandblasting gun rod away from the nozzle is connected to the sand storage mechanism, and the sand storage mechanism is used to supply sand to the sandblasting gun rod.

9. The sandblasting device of claim 8, wherein The bracket is installed on the top of the housing, and the top of the housing is provided with an installation hole communicating with the sandblasting chamber. The sandblasting gun rod is movably inserted through the through hole and the installation hole in sequence, so that the nozzle is movably disposed in the sandblasting chamber.

10. An apparatus for machining a large axle of a horizontal tail of an aircraft, characterized in that, It includes a sand circulation device, a dust removal device, and a sandblasting device as described in claim 8 or 9, wherein the sandblasting device is connected in sequence to the sand circulation device and the dust removal device.

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