阅读说明：本技术 一种采用滑动结构调节的降噪喷嘴 (Noise reduction nozzle adjusted by adopting sliding structure ) 是由 胡晓冬 李元龙 许雪峰 张若冲 邓乾发 于 2021-08-30 设计创作，主要内容包括：本发明提供一种采用滑动结构调节的降噪喷嘴,主要包括喷嘴、连接组件和紧固组件,所述喷嘴包括喷嘴头和液管,所述喷嘴头呈中空结构,内部设有液管导行槽,所述喷嘴头远离喷嘴出口的一端设有喷嘴管,其直径小于靠近喷嘴出口的喷嘴直径,在所述喷嘴管上安装橡胶垫圈与底座圆管；所述液管一端外壁上设有液管螺纹,中部设有液管导形块,可在所述液管导形槽内滑动；所述连接组件包括竹节管、橡胶垫圈和底座。所述紧固组件包括紧固环和螺钉,紧固环内侧设有紧固环内槽,所述橡胶垫圈呈圆管状,安装在所述喷嘴头的喷嘴管上,所述喷嘴管的一端抵在所述橡胶垫圈上。本发明通过设计十字型导行块的液管以及具有侧翼板连接同轴内螺纹的底座,扩大了气道流通面积,减小了内部噪声,同时通过喷嘴头内的导行槽与液管的十字型导行块相配合,实现液管头与喷嘴口的距离调节。(The invention provides a noise reduction nozzle adjusted by adopting a sliding structure, which mainly comprises a nozzle, a connecting assembly and a fastening assembly, wherein the nozzle comprises a nozzle head and a liquid pipe, the nozzle head is of a hollow structure, a liquid pipe guide groove is arranged in the nozzle head, a nozzle pipe is arranged at one end of the nozzle head, which is far away from a nozzle outlet, the diameter of the nozzle pipe is smaller than that of the nozzle close to the nozzle outlet, and a rubber gasket and a base circular pipe are arranged on the nozzle pipe; the outer wall of one end of the liquid pipe is provided with a liquid pipe thread, and the middle part of the liquid pipe thread is provided with a liquid pipe guide block which can slide in the liquid pipe guide groove; the coupling assembling includes bamboo joint pipe, rubber packing ring and base. The fastening assembly comprises a fastening ring and a screw, an inner groove of the fastening ring is arranged on the inner side of the fastening ring, the rubber gasket is in a circular tube shape and is installed on a nozzle pipe of the nozzle head, and one end of the nozzle pipe abuts against the rubber gasket. The invention enlarges the flow area of the air passage and reduces the internal noise by designing the liquid pipe of the cross-shaped guide block and the base with the side wing plate connected with the coaxial internal thread, and simultaneously realizes the distance adjustment of the liquid pipe head and the nozzle opening by matching the guide groove in the nozzle head with the cross-shaped guide block of the liquid pipe.)

1. A noise reduction nozzle adopting a sliding structure for adjustment mainly comprises a nozzle, a connecting assembly and a fastening assembly, and is characterized in that the nozzle comprises a nozzle head and a liquid pipe, the nozzle head is of a hollow structure, a liquid pipe guide groove is formed in the nozzle head, a nozzle pipe is arranged at one end, far away from an outlet of the nozzle, of the nozzle head, the diameter of the nozzle pipe is smaller than that of the nozzle close to the outlet of the nozzle, and a rubber gasket and a base circular pipe are arranged on the nozzle pipe; a liquid pipe thread is arranged on the outer wall of one end of the liquid pipe, a liquid pipe guide block is arranged in the middle of the liquid pipe and can slide in the liquid pipe guide groove, a liquid pipe boss is arranged between the liquid pipe guide block and the liquid pipe thread, the liquid pipe thread is matched with the thread in the liquid pipe fixing hole to fix the liquid pipe, and a liquid pipe connector is arranged on one side, away from the liquid pipe boss, of the liquid pipe thread; the connecting assembly comprises a bamboo joint pipe, a rubber gasket and a base, wherein a liquid pipe fixing hole is formed in the base and is connected with the outer wall of the base through a side wing plate of the base, threads are formed in the liquid pipe fixing hole and are meshed with the liquid pipe threads to fix the axial position of the liquid pipe, a base round pipe and a base connector are respectively arranged at two ends of the base, a base boss is arranged on the base round pipe, the base connector is hemispherical, and the bamboo joint pipe is connected with the nozzle; the fastening assembly comprises a fastening ring and a screw, an inner fastening ring groove is formed in the inner side of the fastening ring, and the base boss is installed in the inner fastening ring groove through the screw; the rubber gasket is in a circular tube shape and is arranged on a nozzle pipe of the nozzle head, and one end of the nozzle pipe abuts against the rubber gasket.

2. The nozzle of claim 1, wherein the number of the fluid guide blocks and the fluid guide grooves is four.

3. The nozzle of claim 1, wherein the base tube has a plurality of slots formed therein.

4. A sliding geometry noise reducing nozzle as claimed in any one of claims 1 to 3, wherein the bamboo joint pipe comprises a plurality of segments.

Technical Field

The invention belongs to the technical field of mechanical equipment, and particularly relates to a noise reduction nozzle adjusted by adopting a sliding structure.

Background

The method for producing the spray by atomizing liquid drops by using high-pressure gas is a common method for producing the spray, and the method comprises the following steps: the air flow and the liquid are converged into a mutually nested pipeline through the confluence plate, the liquid is conveyed by the central pipeline, the air flow flows through a gap between the inner pipeline and the outer pipeline, and liquid drops are atomized and sprayed out at the nozzle. It is common in industrial production to achieve a directed transport of cooling or lubricating fluid in this way.

The nozzle is the important component that realizes that liquid droplet atomizes and the effective injection of gas-liquid mixture, but technical indicator such as atomization effect, jet distance are often only considered in the design process to current nozzle, and do not consider the influence of nozzle noise production noise to the environment, lack the optimal design to reduce the nozzle noise, its structure ubiquitous following problem:

(1) the air flow channel in the nozzle is narrow and easy to generate larger noise. The prior art nozzle generally consists of a base, a connecting tube and a nozzle tip, the internal threads of the tail of the connecting tube engaging the external threads of the base. The connecting pipe head is processed with the internal and external screw threads which are slightly smaller in diameter and are mutually nested, the external screw thread is meshed with the internal screw thread on the nozzle head, the internal screw thread is meshed with the external screw thread on the liquid pipe to be used for fixing the liquid pipe, the air flow can only reach the nozzle head end through a notch on the liquid pipe thread at the position, and the narrow notch on the liquid pipe thread is easy to cause the air flow to generate stronger turbulence so as to cause noise.

(2) The distance from the liquid tube head to the nozzle opening is not convenient to adjust and is not suitable for conversion of different application scenes.

Experimental studies have found that variations in the distance from the head to the nozzle opening not only affect the magnitude of the noise but also alter the diameter of the atomized droplets. In the application operating mode of difference, atmospheric pressure and liquid flow exist the difference, in order to realize the atomizing effect of ideal among the application operating mode, often need adjust the liquid tube head to the nozzle mouth between the distance, but the design scheme of being convenient for adjust liquid tube head and nozzle mouth distance is rarely considered in the structure of current nozzle, can not make nimble regulation according to actual need.

Disclosure of Invention

In order to solve the technical problems, the invention provides a noise reduction nozzle adjusted by adopting a sliding structure, which adopts the following technical scheme:

a noise reduction nozzle adopting a sliding structure for adjustment mainly comprises a nozzle, a connecting assembly and a fastening assembly, wherein the nozzle comprises a nozzle head and a liquid pipe, the nozzle head is of a hollow structure, a liquid pipe guide groove is formed in the nozzle head, a nozzle pipe is arranged at one end, far away from a nozzle outlet, of the nozzle head, the diameter of the nozzle pipe is smaller than that of the nozzle close to the nozzle outlet, and a rubber gasket and a base circular pipe are arranged on the nozzle pipe; a liquid pipe thread is arranged on the outer wall of one end of the liquid pipe, a liquid pipe guide block is arranged in the middle of the liquid pipe and can slide in the liquid pipe guide groove, a liquid pipe boss is arranged between the liquid pipe guide block and the liquid pipe thread, the liquid pipe thread is matched with the thread in the liquid pipe fixing hole to fix the liquid pipe, and a liquid pipe connector is arranged on one side, away from the liquid pipe boss, of the liquid pipe thread; the connecting assembly comprises a bamboo joint pipe, a rubber gasket and a base, wherein a liquid pipe fixing hole is formed in the base and is connected with the outer wall of the base through a side wing plate of the base, threads are formed in the liquid pipe fixing hole and are meshed with the liquid pipe threads to fix the axial position of the liquid pipe, a base round pipe and a base connector are respectively arranged at two ends of the base, a base boss is arranged on the base round pipe, the base connector is hemispherical, and the bamboo joint pipe is connected with the nozzle; the fastening assembly comprises a fastening ring and a screw, an inner fastening ring groove is formed in the inner side of the fastening ring, and the base boss is installed in the inner fastening ring groove through the screw; the rubber gasket is in a circular tube shape and is arranged on a nozzle pipe of the nozzle head, and one end of the nozzle pipe abuts against the rubber gasket.

Furthermore, the liquid pipe guide block and the liquid pipe guide groove are four respectively, so that the sliding stability is improved.

Furthermore, the base circular tube is provided with a plurality of grooves, so that the elasticity is increased.

Further, the bamboo joint pipe comprises a plurality of sections.

Compared with the prior art, the invention has the following advantages:

(1) the distance between the liquid pipe head and the nozzle opening can be adjusted by matching the guide groove in the nozzle head with the cross-shaped guide block of the liquid pipe, so that the axial quick sliding adjustment of the liquid pipe can be realized, the quick adjustment can not only control the noise, but also adjust the atomization effect according to the requirements in practical application so as to adapt to different working conditions, and the application range and the flexibility of the nozzle are improved.

(2) The invention designs the liquid tube with the cross-shaped guide block and the base with the side wing plate connected with the coaxial internal thread, thereby enlarging the flow area of the air passage. The liquid pipe is provided with a cross-shaped guide block, and the liquid pipe with the guide block is placed into a nozzle head with a guide groove on the inner wall. The internal thread is processed in the base, and the pterygoid lamina of internal thread both sides is even as an organic whole with it with the base, and the liquid pipe carries out axial fixity by the internal thread. The base internal thread and the cross guide block of liquid pipe have guaranteed the unobstructed of the inside air flue of nozzle jointly, have also guaranteed simultaneously that liquid pipe and nozzle opening's the coaxial axle center make the air current of injection more even, have changed the condition of current nozzle air flue cross-sectional area sudden change, make the air current more smooth and easy, have reduced the noise that arouses because of the air flue cross-sectional area sudden change.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic view of the overall structure of a noise reduction nozzle adjusted by a sliding structure of the invention mounted on a minimal quantity lubrication device;

FIG. 2 is a schematic illustration and cross-sectional view of the noise reducing nozzle of FIG. 1;

fig. 3 is a schematic structural view of the nozzle head 11 in fig. 2;

FIG. 4 is a schematic view of the details of fluid tube 12 of FIG. 2;

fig. 5 is a schematic structural view of the rubber gasket 13 in fig. 2;

FIG. 6 is a schematic structural view of the base 21 of FIG. 2;

FIG. 7 is a schematic view of the details of the fastening assembly 3 of FIG. 2;

in the figure, a nozzle 1, a connecting assembly 2, a fastening assembly 3, a minimal quantity lubrication device body 4, a nozzle head 11, a liquid pipe 12, a rubber gasket 13, a base 21, a liquid delivery hose 22, a connecting buckle 23, a bamboo joint pipe 24, a fastening ring 31, a hexagon socket head cap screw 32, a liquid pipe guide groove 111, a nozzle pipe 112, a nozzle opening 113, a liquid pipe guide block 121, a liquid pipe boss 122, a liquid pipe thread 123, a liquid pipe connector 124, a liquid pipe head 125, a base circular pipe 211, a liquid pipe fixing hole 212, a base connector 213, a base boss 214, a base side wing plate 215, a screw mounting hole 311, and a fastening ring inner groove 312.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1-7, the noise reduction nozzle adjusted by the sliding structure of the present invention mainly comprises a nozzle 1, a connecting assembly 2 and a fastening assembly 3. The fastening assembly 3 is opened and then the nozzle head 11 is slid to move the nozzle head 11 in the axial direction, the distance between the liquid tube head 125 and the nozzle opening 113 is adjusted, and the fastening assembly 3 is screwed after the position is determined, so that the effect of controlling noise and adjusting the atomization degree of liquid drops is achieved. The fastening component 3 and the base 21 are in interference fit in the radial direction, the inner hexagon screw 32 is screwed, and the base circular tube 211 is pressed by the fastening ring 31 to contract inwards and compress the rubber gasket 13 so as to achieve the effects of sealing and fixing; the redesigned nozzle gas flow passage is smoother without the condition of abrupt change of the sectional area, thereby reducing the generation of nozzle noise.

As shown in FIG. 1, the overall structure of the noise reduction nozzle which is adjusted by adopting a sliding structure and is arranged on a minimal quantity lubrication device is schematically shown. The gas-liquid pipeline of the minimal quantity lubrication device is collected into the mutually nested pipelines through the confluence plate, and the nozzle 1 is connected with the minimal quantity lubrication device main body 4 through the bamboo joint pipe 24 of the connecting component 2. The cooperation of the segments of bamboo joint pipe 24 ensures the freedom of the nozzle in space.

FIG. 2 is a schematic illustration and cross-sectional view of a noise reducing nozzle. The structure of the nozzle comprises a nozzle 1, a connecting component 2 and a fastening component 3. The liquid is delivered through the infusion hose 22 of the connector assembly 2, and the compressed air is delivered through the passage inside the bamboo joint pipe 24, and finally the two are merged at the front end of the liquid pipe head 125 to form the aerosol. One end of the transfusion hose 22 is connected with the machine body, the other end is sleeved on the liquid pipe connector 124, and the connecting buckle 23 is used for connecting the base 21 and the bamboo joint pipe 24.

As shown in fig. 3, which is a schematic structural view of the nozzle head, the nozzle head 11 is provided with a liquid pipe guide groove 111 inside,

the liquid pipe guide groove 111 and the liquid pipe guide block 121 are mutually matched to ensure that the liquid pipe is always positioned at the position of the concentric circle of the nozzle, so that the airflow distribution is more uniform and the atomization effect is better. The nozzle pipe 112 with a slightly smaller outer diameter is processed at the tail part of the nozzle head 11, and the rubber gasket 13 and the base circular pipe 211 can be installed on the nozzle pipe, so that the effective connection of the nozzle pipe, the rubber gasket and the base circular pipe can be ensured under the radial compression action of the fastening assembly 33.

As shown in fig. 4, the liquid pipe 12 is a hollow metal pipe, and is provided with liquid pipe guide blocks 121, four of which are respectively installed inside the four liquid pipe guide grooves 111, so as to ensure the axial sliding of the nozzle head 11, increase the gas flow area inside the nozzle head 11, and make the liquid pipe 12 and the nozzle head 11 coaxial. Pipe 12 has a pipe boss 122 and pipe threads 123 formed in the middle portion of pipe 12, and pipe threads 123 cooperate with threads on the inside of pipe fixing hole 212 to fix the pipe. The liquid pipe boss 122 protruding in the middle plays limiting role, prevents that the liquid pipe from excessively causing unnecessary trouble in rotatory in-process regulation, and the back taper type liquid pipe connector 124 of afterbody is used for connecting infusion hose 22, and the back taper type design prevents that infusion hose 22 from droing in the use. The infusion hose 22 has a diameter smaller than the diameter of the tube fixing hole 212 so that the infusion hose 22 can pass through the tube fixing hole 212 for easy installation.

As shown in fig. 5, which is a schematic structural diagram of the rubber gasket 13, the rubber gasket is in a circular tube shape and is mounted on the nozzle pipe 112 at the tail part of the nozzle head 11, when the fastening assembly 33 is contracted inwards to press the base circular tube 211, the base circular tube 211 is deformed and transmits part of the pressure to the rubber gasket 13, the rubber gasket 13 is elastically deformed by the radial pressing force, and the deformation of the rubber gasket 13 enables the nozzle to be sealed and fixed.

As shown in fig. 6, which is a schematic structural view of the base 21, the base circular tube 211 at the front end is provided with a plurality of grooves to improve the elasticity of the base circular tube so that the base circular tube is more easily contracted inwards. The base 21 has a tube retaining hole 212 formed therein and threaded to engage the tube threads 123 to retain the tube in its axial position. The liquid tube fixing hole 212 is connected with the base 21 through the base side wing plate 215, the flow area of the gas increased by the sheet-shaped base side wing plate 215 reduces the noise, and the hemispherical base connecting head 213 at the tail part is matched with the connecting buckle 23 to connect the bamboo joint tube 24 with the nozzle.

As shown in fig. 7, the fastening assembly 3 is composed of a fastening ring 31 and a socket head cap 32, wherein an inner fastening ring groove 312 is formed inside the fastening ring 31, and the inner fastening ring groove 312 is matched with the base boss 214 on the base circular tube 211 to ensure that the fastening assembly 33 does not slide axially during operation. The fastening ring 31 and the base circular tube 211 are in interference fit in the radial direction, which is more favorable for clamping the base circular tube 211.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.