CN210069066U

CN210069066U - Processing device of pressure reducing valve for hydrogen fuel of unmanned aerial vehicle

Info

Publication number: CN210069066U
Application number: CN201920758764.5U
Authority: CN
Inventors: 刘翔; 张彬彬; 陈钦; 李冉
Original assignee: Shandong Black Shark Intelligent Technology Co Ltd
Current assignee: Shandong Black Shark Intelligent Technology Co Ltd
Priority date: 2019-05-24
Filing date: 2019-05-24
Publication date: 2020-02-14
Anticipated expiration: 2029-05-24

Abstract

The utility model relates to a hydrogen fuel, unmanned aerial vehicle and unmanned aerial vehicle twine light relief pressure valve technical field for gas cylinder, and disclose a processingequipment of unmanned aerial vehicle for hydrogen fuel relief pressure valve, including relief pressure valve body and one-level decompression end installation fore-set, the card is equipped with valve mounting thread, hydrogen entry, one-level pressure relief device mounted position, flow passage hole, case mounted position and second grade pressure relief device mounted position in the inner chamber of relief pressure valve body, one-level pressure relief device mounted position and second grade pressure relief device mounted position are located the both sides of relief pressure valve body, and one-level pressure relief device mounted position is located the left side of second grade pressure relief device mounted position. The utility model discloses a machining's method processes four great flow holes (D2 mm), then again wherein installs a copper core village cover (D D is 2mm), so both can guarantee the empty size of flow, guarantee the empty diameter precision of flow and roughness, can reduce the processing cost again simultaneously.

Description

Processing device of pressure reducing valve for hydrogen fuel of unmanned aerial vehicle

Technical Field

The utility model relates to a hydrogen fuel, unmanned aerial vehicle and unmanned aerial vehicle twine light relief pressure valve technical field for the gas cylinder specifically are an unmanned aerial vehicle is processingequipment of relief pressure valve for hydrogen fuel.

Background

Hydrogen fuel unmanned aerial vehicle obtains using in more and more fields, wherein add used fuel hydrogen and store in aluminum alloy inner bag carbon fiber winding gas cylinder through pressure boost (present pressure is generally 35MPA), the required hydrogen inlet pressure of fuel galvanic pile for the unmanned aerial vehicle is generally 50KPA, so hydrogen must be used through the decompression in order to supply the fuel galvanic pile, unmanned aerial vehicle's performance and duration etc. have very strict requirement to valve weight, also do so to bottleneck relief valve's size, the decompression process (the decompression multiple is 700 times) that will realize 35MPA to 50KPA, guarantee outlet pressure stability simultaneously, must can reach through second grade decompression.

Because of the strict requirement on the weight, the weight is controlled within 200g, the valve body material is selected from aluminum alloy or titanium alloy with higher specific strength, the titanium alloy has overhigh requirement on the process, the processing difficulty is high, the cost is high, the aluminum alloy (6061) has relatively lower requirement on the processing process, the cost can be well controlled, but the processing of the flow passage hole (with the diameter of 1mm) is completed in a laser punching mode, the aluminum alloy has poor processing manufacturability in the aspect, the precision and the roughness of the hole are poor in the laser punching mode, if a mechanical processing method is selected, the precision and the roughness can be well controlled, the hole diameter is too small, the processing is not good, and therefore the processing device of the pressure reducing valve for the hydrogen fuel of the unmanned aerial vehicle is provided.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects of the prior art, the utility model provides a processing device of pressure reducing valve for hydrogen fuel of unmanned aerial vehicle, the device is provided to ensure that the aperture of a flow hole is unchanged, the pressure reducing valve has the advantages of unchanged performance, the processing difficulty is reduced, the processing cost is reduced, the problem that the weight is required to be controlled within 200g due to the strict requirement on the weight is solved, aluminum alloy or titanium alloy with larger specific strength is selected as a valve body material, the requirement on the process is overhigh by selecting titanium alloy, the processing difficulty is large, the cost is high, the requirement on the processing process by selecting aluminum alloy (6061) is relatively lower, the cost can be well controlled, but the processing of the flow channel hole (diameter of 1mm) is completed by a laser punching mode, the processing manufacturability of the aluminum alloy in this aspect is poor, the precision and the roughness of the hole are poor by the laser punching mode, if a mechanical processing method is, the precision and the roughness can be well controlled, but the aperture is too small, and the processing is not good.

The utility model provides a following technical scheme: a processing device of a pressure reducing valve for hydrogen fuel of an unmanned aerial vehicle comprises a pressure reducing valve body and a primary pressure reducing end mounting top column, wherein a valve mounting thread, a hydrogen inlet, a primary pressure reducing device mounting position, a flow channel hole, a valve core mounting position and a secondary pressure reducing device mounting position are clamped in an inner cavity of the pressure reducing valve body, the primary pressure reducing device mounting position and the secondary pressure reducing device mounting position are located on two sides of the pressure reducing valve body, the primary pressure reducing device mounting position is located on the left side of the secondary pressure reducing device mounting position, the flow channel hole is located in the middle of the pressure reducing valve body, the valve core mounting position and the valve mounting thread are respectively located on the upper side and the lower side of the pressure reducing valve body, the valve mounting thread is located below the valve core mounting position, the hydrogen inlet is located below the hydrogen inlet, and the width value of, four one-level decompression end installation nails of right side fixedly connected with of one-level decompression end installation fore-set, four the other end fixedly connected with copper core of one-level decompression end installation nail, four the other end fixedly connected with second grade decompression end installation nail of copper core, four the other end fixedly connected with second grade decompression end installation fore-set of second grade decompression end installation nail.

Preferably, a stainless steel thin column is fixedly installed in the inner cavity of the copper core, and one end of the stainless steel thin column is fixedly connected with one end of the first-stage pressure reduction end installation nail.

Preferably, one end fixedly connected with second grade decompression end secondary installation nail of second grade decompression end installation nail, and second grade decompression end secondary installation nail is located the inner chamber of copper core.

Preferably, the first-stage pressure reducing end mounting support, the first-stage pressure reducing end mounting nail, the copper core, the second-stage pressure reducing end mounting nail and the second-stage pressure reducing end mounting support are all located in an inner cavity of the pressure reducing valve body.

Preferably, four first-level decompression end installation nails are respectively and fixedly connected with the right side of the first-level decompression end installation support pillar, and the distance between the first-level decompression end installation nails is equal to the distance between the first-level decompression end installation support pillars.

Preferably, the length value and the width value of the mounting position of the primary pressure reducing device and the mounting position of the secondary pressure reducing device are equal.

Compared with the prior art, the utility model discloses possess following beneficial effect:

1. according to the processing device of the pressure reducing valve for the hydrogen fuel of the unmanned aerial vehicle, four large flow holes (D is 2mm) are processed by a machining method, and then a copper core bushing (D is 2mm 1mm) is installed in each flow hole, so that the size of the flow space can be ensured, the precision and the roughness of the flow space diameter can be ensured, and the processing cost can be reduced.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the internal structure of the present invention;

fig. 3 is a schematic side view of the structure of the present invention.

In the figure: 1. a pressure reducing valve body; 2. mounting threads on the valve; 3. a hydrogen inlet; 4. a primary pressure reduction device mounting location; 5. a flow passage hole; 6. a valve core mounting position; 7. the mounting position of the secondary pressure reducing device; 8. a top column is arranged at the first-stage pressure reduction end; 9. a nail is arranged at the first-stage pressure reducing end; 10. a copper core; 11. a nail is arranged at the secondary pressure reducing end; 12. and the secondary pressure reduction end is provided with a top column.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, a processing device of a pressure reducing valve for hydrogen fuel of an unmanned aerial vehicle comprises a pressure reducing valve body 1 and a first-stage pressure reducing end mounting top column 8, a valve mounting thread 2, a hydrogen inlet 3, a first-stage pressure reducing device mounting position 4, a flow channel hole 5, a valve core mounting position 6 and a second-stage pressure reducing device mounting position 7 are clamped in an inner cavity of the pressure reducing valve body 1, the first-stage pressure reducing device mounting position 4 and the second-stage pressure reducing device mounting position 7 are located on two sides of the pressure reducing valve body 1, the length values and the width values of the first-stage pressure reducing device mounting position 4 and the second-stage pressure reducing device mounting position 7 are equal, the first-stage pressure reducing device mounting position 4 is located on the left side of the second-stage pressure reducing device mounting position 7, the flow channel hole 5 is located in the middle of the pressure reducing valve body, the valve mounting thread 2 is positioned below the valve core mounting position 6, the hydrogen inlet 3 is positioned below the hydrogen inlet 3, the width of the hydrogen inlet 3 is smaller than that of the valve mounting thread 2, the right side of the first-stage pressure reducing end mounting support 8 is fixedly connected with four first-stage pressure reducing end mounting nails 9, the four first-stage pressure reducing end mounting nails 9 are respectively and fixedly connected with the right side of the first-stage pressure reducing end mounting support 8, the intervals between the four first-stage pressure reducing end mounting nails are equal, the other ends of the four first-stage pressure reducing end mounting nails 9 are fixedly connected with copper cores 10, the assembling method aims to press a small platform at each of the two ends of the copper cores 10 to achieve the function of fixing the copper cores 10, stainless steel thin columns are fixedly mounted in the inner cavities of the copper cores 10 and can play a role of fixing and supporting when the copper cores 10 are pressed, the phenomenon that the copper cores 10 deform when the copper cores 10 are pressed is prevented, and one ends of the stainless steel thin columns are fixedly connected with one end of the, the other end fixedly connected with second grade decompression end installation nail 11 of four copper cores 10, first grade decompression end installation fore-set 8, first grade decompression end installation nail 9, copper core 10, second grade decompression end installation nail 11 and second grade decompression end installation fore-set 12 all are located the inner chamber of relief pressure valve body 1, the one end fixedly connected with second grade decompression end secondary installation nail of second grade decompression end installation nail 11, and second grade decompression end secondary installation nail is located the inner chamber of copper core 10, the other end fixedly connected with second grade decompression end installation fore-set 12 of four second grade decompression end installation nails 11, four great flow hole (D ═ 2mm) are processed to the method through machining, then in wherein install a copper core cover (D ═ D is 2 × 1mm), both can guarantee the empty size of flow like this, guarantee empty diameter precision of flow and roughness, can reduce the processing cost again simultaneously.

According to the working principle, a stainless steel thin column is arranged in a copper core 10 and then is arranged in a valve body flow passage hole 5; the first-stage pressure reducing end mounting nail 9 is positioned and plugged into the copper core 10 through a small guide post; mounting a first-stage pressure reducing end mounting top pillar 8, and mounting a second-stage pressure reducing end mounting nail 9 into the copper core; applying a certain acting force to the copper core 10 by the secondary decompression end mounting top pillar 12, pressing the copper core 10 outwards to form a certain small taper angle, replacing the secondary decompression end mounting nail 9 with a secondary decompression end mounting nail, pressing again to complete the mounting of the secondary decompression end copper core 10, and completing the mounting of the primary decompression end copper core 10 by a similar method; and (4) taking out the stainless steel thin column in the copper core 10.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an unmanned aerial vehicle is processingequipment of relief pressure valve for hydrogen fuel, includes relief pressure valve body (1) and one-level decompression end installation fore-set (8), its characterized in that: the inner cavity of the pressure reducing valve body (1) is clamped with a valve mounting thread (2), a hydrogen inlet (3), a first-stage pressure reducing device mounting position (4), a flow passage hole (5), a valve core mounting position (6) and a second-stage pressure reducing device mounting position (7), the first-stage pressure reducing device mounting position (4) and the second-stage pressure reducing device mounting position (7) are positioned at two sides of the pressure reducing valve body (1), the first-stage pressure reducing device mounting position (4) is positioned at the left side of the second-stage pressure reducing device mounting position (7), the flow passage hole (5) is positioned at the middle part of the pressure reducing valve body (1), the valve core mounting position (6) and the valve mounting thread (2) are respectively positioned at the upper side and the lower side of the pressure reducing valve body (1), the valve mounting thread (2) is positioned below the valve core mounting position (6), and the hydrogen inlet (3) is positioned below the, and the width value of hydrogen entry (3) is less than the width value of valve installation screw thread (2), four one-level decompression end installation nail (9), four of the right side fixedly connected with of one-level decompression end installation fore-set (8) the other end fixedly connected with copper core (10), four of one-level decompression end installation nail (9) the other end fixedly connected with second grade decompression end installation nail (11), four of copper core (10) the other end fixedly connected with second grade decompression end installation fore-set (12) of second grade decompression end installation nail (11).

2. The processing device of claim 1, wherein the processing device comprises: and a stainless steel thin column is fixedly arranged in the inner cavity of the copper core (10), and one end of the stainless steel thin column is fixedly connected with one end of the first-stage pressure reduction end mounting nail (9).

3. The processing device of claim 1, wherein the processing device comprises: one end fixedly connected with second grade decompression end secondary installation nail of second grade decompression end installation nail (11), and second grade decompression end secondary installation nail is located the inner chamber of copper core (10).

4. The processing device of claim 1, wherein the processing device comprises: the one-level decompression end mounting support pillar (8), the one-level decompression end mounting nail (9), the copper core (10), the second-level decompression end mounting nail (11) and the second-level decompression end mounting support pillar (12) are all located in an inner cavity of the decompression valve body (1).

5. The processing device of claim 1, wherein the processing device comprises: and four first-stage pressure reducing end mounting nails (9) are respectively fixedly connected with the right side of the first-stage pressure reducing end mounting support pillar (8), and the distance between the first-stage pressure reducing end mounting nails and the right side of the first-stage pressure reducing end mounting support pillar is equal.

6. The processing device of claim 1, wherein the processing device comprises: the length values and the width values of the mounting positions (4) of the primary pressure reducing device and the mounting positions (7) of the secondary pressure reducing device are equal.