Ventilation valve assembly for speed reducer

Abstract

The utility model provides a vent valve assembly for a speed reducer, which relates to the technical field of vent valve assemblies and comprises a venting plug body, a venting plug cover is mounted at the upper end of the venting plug body in a clamping manner, a rubber pad is mounted at the upper end of the venting plug body and positioned in the venting plug cover, a spring is mounted at the upper end of the inside of the venting plug cover, and the rubber pad is positioned in the venting plug cover. The lower end of the spring is attached to the rubber pad, a buckle is installed at the lower end of the venting plug cover in a clamped mode, and the buckle is attached to the lower surface of the venting plug body. According to the utility model, the connection between the venting plug cover and the venting plug body is realized through the connection between the buckle and the venting plug cover, and then the connection between the venting plug cover and the venting plug body is realized through the clamping between the buckle and the venting plug body, so that the problem that a plating layer is damaged in the process of assembling the venting plug body and the venting plug cover is solved; the overall corrosion resistance and wading performance are improved, and the required requirements are met.

Description

Technical Field

[0001] The utility model relates to the technical field of ventilation valve assemblies, and more specifically, to a ventilation valve assembly for a speed reducer. Background Technique

[0002] The ventilation valve assembly of the speed reducer is an important component of the speed reducer, and its main function is to balance the air pressure inside and outside the box. However, when using the ventilation valve assembly, since the ventilation valve assembly is subjected to single-piece dacromet surface treatment, and then the assembled components are assembled by riveting after surface treatment, but the riveting assembly will cause damage to the dacromet layer on the surface of the assembly, resulting in the unqualified anti-corrosion and wading performance of the assembly, and the spring is not corrosion-resistant, reducing the service life of the assembly. Therefore, we propose a ventilation valve assembly for a speed reducer to solve the above problems. Summary of the Utility Model

[0003] The main purpose of the utility model is to provide a ventilation valve assembly for a speed reducer, which solves the problems that since the ventilation valve assembly is subjected to single-piece dacromet surface treatment, and then the assembled components are assembled by riveting after surface treatment, but the riveting assembly will cause damage to the dacromet layer on the surface of the assembly, resulting in the unqualified anti-corrosion and wading performance of the assembly, and the spring is not corrosion-resistant, reducing the service life of the assembly.

[0004] To achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0005] A ventilation valve assembly for a speed reducer includes an exhaust plug body, an exhaust plug cover is snap-fitted on the upper end of the exhaust plug body, a rubber pad is installed on the upper end of the exhaust plug body and is located inside the exhaust plug cover, a spring is installed at the upper end inside the exhaust plug cover, and the lower end of the spring is in contact with the rubber pad, a buckle is snap-fitted at the lower end of the exhaust plug cover, and the buckle is in contact with the lower surface of the exhaust plug body.

[0006] Preferably, a limiting rod is installed at the upper end inside the exhaust plug cover, the spring is sleeved outside the limiting rod, several first sealing grooves are provided on the outer side of the exhaust plug body located inside the exhaust plug cover, first sealing rings are respectively installed inside the first sealing grooves, and the exhaust plug body is in contact with the first sealing rings and the inner wall of the exhaust plug cover.

[0007] Preferably, a rotating ring is installed at the upper end of the buckle, and an external thread is provided on the outer side of the rotating ring, a limiting groove is provided on the lower surface of the exhaust plug cover, and an internal thread is provided on the inner wall of the limiting groove, and the rotating ring is installed inside the limiting groove by means of a thread.

[0008] Preferably, second sealing grooves are respectively provided on the inner and outer sides of the lower end of the exhaust plug cover. Sealing blocks are respectively installed on the inner and outer sides of the upper surface of the buckle, and the sealing blocks are respectively snap-fitted inside the second sealing grooves. Second sealing rings are respectively installed between the upper surfaces of the sealing blocks and the second sealing grooves.

[0009] Compared with the prior art, the utility model has the following beneficial effects:

[0010] (1) In the utility model, through the connection between the buckle and the exhaust plug cover, and then through the engagement between the buckle and the exhaust plug body, the connection between the exhaust plug cover and the exhaust plug body is realized, thereby solving the problem of coating damage during the assembly process of the exhaust plug body and the exhaust plug cover, improving the overall corrosion resistance and water wading performance, and making it meet the required standards.

[0011] (2) In the utility model, the exhaust plug cover and the buckle are made of glass fiber nylon material, making the exhaust plug cover and the buckle have high strength and high toughness, improving the tensile strength, bending strength and heat distortion temperature, so as to facilitate the installation of the exhaust plug cover and the buckle on the outer side of the exhaust plug body. Then, the zinc-nickel alloy coating on the exhaust plug body can still maintain its corrosion resistance under high temperature conditions, further improving the overall service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is the overall structural schematic diagram of a ventilation valve assembly for a reducer of the present utility model;

[0013] Figure 2 is the front view structural schematic diagram of a ventilation valve assembly for a reducer of the present utility model;

[0014] Figure 3 is a ventilation valve assembly for a reducer of the present utility model Figure 2 sectional structural schematic diagram at A-A;

[0015] Figure 4 is a ventilation valve assembly for a reducer of the present utility model Figure 3 magnified structural schematic diagram at B.

[0016] In the figure: 1, exhaust plug body; 2, exhaust plug cover; 3, rubber pad; 4, spring; 5, limiting rod; 6, first sealing ring; 7, first sealing groove; 8, buckle; 9, rotating ring; 10, limiting groove; 11, sealing block; 12, second sealing groove; 13, second sealing ring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] Next, in combination with the embodiments of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the protection scope of the present utility model.

[0018] As Figures 1 to 4 shown, an air vent valve assembly for a speed reducer is proposed in an embodiment of the present utility model, which includes an exhaust plug body 1. An exhaust plug cover 2 is snap-fitted and installed at the upper end of the exhaust plug body 1. A rubber pad 3 is installed at the upper end of the exhaust plug body 1, and the rubber pad 3 is located inside the exhaust plug cover 2. A spring 4 is installed at the upper inner end of the exhaust plug cover 2, and the lower end of the spring 4 is in contact with the rubber pad 3. A snap 8 is snap-fitted and installed at the lower end of the exhaust plug cover 2, and the snap 8 is in contact with the lower surface of the exhaust plug body 1.

[0019] As Figure 3 In Figure 4 another embodiment of the present utility model shown, a limiting rod 5 is installed at the upper inner end of the exhaust plug cover 2. The spring 4 is sleeved outside the limiting rod 5. A plurality of first sealing grooves 7 are provided on the outer side of the exhaust plug body 1 inside the exhaust plug cover 2. First sealing rings 6 are respectively installed inside the first sealing grooves 7. The exhaust plug body 1 is in contact with the first sealing rings 6 and the inner wall of the exhaust plug cover 2. A rotating ring 9 is installed at the upper end of the snap 8, and external threads are provided on the outer side of the rotating ring 9. A limiting groove 10 is provided on the lower surface of the exhaust plug cover 2, and internal threads are provided on the inner wall of the limiting groove 10. The rotating ring 9 is installed inside the limiting groove 10 through threads. Second sealing grooves 12 are respectively provided on the inner and outer sides at the lower end of the exhaust plug cover 2. Sealing blocks 11 are respectively installed on the inner and outer sides of the upper surface of the snap 8. The sealing blocks 11 are respectively snap-fitted and installed inside the second sealing grooves 12. Second sealing rings 13 are respectively installed between the upper surface of the sealing blocks 11 and the second sealing grooves 12.

[0020] The exhaust plug cover 2 and the snap 8 are made of PA66+GF30 glass fiber nylon material. Due to its good mechanical properties and thermal stability, high strength and high stiffness enable it to withstand the high temperature and high pressure environment inside the speed reducer, effectively preventing oil and gas leakage. In addition, its excellent heat resistance and chemical resistance can also ensure the stability and durability of the exhaust plug cover 2 during long-term use, and at the same time can improve the anti-oil leakage effect and reliability of the speed reducer, and is also beneficial to reducing the size of the speed reducer housing;

[0021] The coating on the exhaust plug body 1 is a zinc-nickel alloy coating. Since the zinc-nickel alloy coating is very stable in the air, it can quickly form an extremely thin passivation film, isolating the substrate from the air and resisting the corrosion of the atmosphere, alkali, and certain acids. Then, the zinc-nickel alloy coating can withstand high-temperature environments and is not easily subject to performance changes or failures due to temperature rise, ensuring the normal operation of the ventilation valve at high temperatures. Finally, due to the high hardness of the zinc-nickel alloy coating and its good mechanical properties, it can enhance the wear resistance and strength of the exhaust plug body 1 and extend its service life;

[0022] When the overall assembly needs to be snap-fitted, the user first slips the snap 8 over the outside of the exhaust plug body 1. Then the user installs the rubber gasket 3 on the upper end of the exhaust plug body 1. Then the user places the spring 4 inside the exhaust plug cover 2. Finally, after the user inserts the exhaust plug body 1 into the exhaust plug cover 2, the user can control the snap 8 to rotate, enabling the snap 8 to install the rotating ring 9 into the limit groove 10 through threading, thereby forming an integral body between the snap 8 and the exhaust plug cover 2 and achieving a snap-fit connection among the snap 8, the exhaust plug cover 2, and the exhaust plug body 1 to complete the overall assembly work.

[0023] The working principle of the ventilation valve assembly for a reducer:

[0024] In use, first, when the overall assembly needs to be snap-fitted, the user first slips the snap 8 over the outside of the exhaust plug body 1. Then the user installs the rubber gasket 3 on the upper end of the exhaust plug body 1. Then the user places the spring 4 inside the exhaust plug cover 2. Finally, after the user inserts the exhaust plug body 1 into the exhaust plug cover 2, the user can control the snap 8 to rotate, enabling the snap 8 to install the rotating ring 9 into the limit groove 10 through threading, thereby forming an integral body between the snap 8 and the exhaust plug cover 2 and achieving a snap-fit connection among the snap 8, the exhaust plug cover 2, and the exhaust plug body 1 to complete the overall assembly work.

[0025] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention and are not intended to limit the implementation manners of the present invention. For those of ordinary skill in the art, based on the above description, other different forms of changes or variations can be made. It is impossible to enumerate all the implementation manners here. Any obvious changes or variations derived from the technical solutions of the present invention still fall within the protection scope of the present invention.

Claims

1. A vent valve assembly for a speed reducer, comprising a vent plug body (1), characterized in that: The upper end of the exhaust plug body (1) is snap-fitted with an exhaust plug cover (2), the upper end of the exhaust plug body (1) is mounted with a rubber pad (3), and the rubber pad (3) is located inside the exhaust plug cover (2), the upper end of the exhaust plug cover (2) is mounted with a spring (4), and the lower end of the spring (4) and the rubber pad (3) are in contact with each other, and the lower end of the exhaust plug cover (2) is snap-fitted with a buckle (8), and the buckle (8) is in contact with the lower surface of the exhaust plug body (1).

2. A vent valve assembly for a reducer according to claim 1, characterized in that: A limiting rod (5) is installed at the upper end of the interior of the exhaust plug cover (2), and the spring (4) is sleeved on the outside of the limiting rod (5). The exhaust plug body (1) is provided with a plurality of No. 1 sealing grooves (7) on the outside of the exhaust plug cover (2), and No. 1 sealing rings (6) are installed inside the No. 1 sealing grooves (7), respectively. The exhaust plug body (1) fits the No. 1 sealing rings (6) and the inner wall of the exhaust plug cover (2).

3. The vent valve assembly for a reducer according to claim 1, characterized in that: A rotating ring (9) is installed at the upper end of the buckle (8), and an external thread is provided on the outer side of the rotating ring (9). A limiting groove (10) is provided on the lower surface of the exhaust plug cover (2), and an internal thread is provided on the inner wall of the limiting groove (10). The rotating ring (9) is installed inside the limiting groove (10) through the thread.

4. The vent valve assembly for a reducer according to claim 1, characterized in that: The exhaust plug cover (2) is provided with a second sealing groove (12) on both inner and outer sides of the lower end thereof, and sealing blocks (11) are respectively installed on the inner and outer sides of the upper surface of the buckle (8), and the sealing blocks (11) are respectively snap-fitted and installed inside the second sealing groove (12), and a second sealing ring (13) is respectively installed between the upper surface of the sealing block (11) and the second sealing groove (12).

Images