CN220152159U - Noise reduction device and hydraulic pipeline assembly with same - Google Patents

Abstract

The utility model discloses a noise reduction device and a hydraulic pipeline assembly with the same, wherein the noise reduction device comprises: a first housing assembly including a first half shell and a plurality of first partitions; the first half shell and the second half shells are connected to form a cylinder structure together, the outer peripheral wall of the first partition plate is connected with the inner peripheral wall of the first half shell and is spaced from the inner peripheral wall of the second half shell, the outer peripheral wall of the second partition plate is connected with the inner peripheral wall of the second half shell and is spaced from the inner peripheral wall of the first half shell, and the plurality of first partition plates and the plurality of second partition plates are arranged in a staggered manner along the axial direction of the cylinder structure; the first blanking cover and the second blanking cover are respectively arranged at two axial ends of the cylinder structure, the first blanking cover is provided with an inlet, and the second blanking cover is provided with an outlet. According to the noise reduction device, noise reduction is performed by reducing the flow velocity and vibration of the liquid in the noise reduction device.

Description

Noise reduction device and hydraulic pipeline assembly with same

Technical Field

The utility model relates to the field of high-pressure liquid transmission, in particular to a noise reduction device and a hydraulic pipeline assembly with the same.

Background

In the prior art, aiming at the transmission of noise and vibration in a hydraulic pipeline, a scheme of additionally arranging a noise reduction strip in the hydraulic pipeline is generally adopted, the noise reduction effect is common, the effective diameter in the hydraulic pipeline is reduced, and the flow of liquid in the hydraulic pipeline is influenced.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the utility model provides the noise reduction device which can reduce the flow velocity and vibration of liquid in the noise reduction device and reduce the noise of the liquid in the hydraulic pipeline assembly.

The utility model also provides a hydraulic pipeline assembly, which comprises the noise reduction device.

The noise reduction device according to the embodiment of the utility model comprises: a first housing assembly including a first half shell and a plurality of first partitions; the second shell assembly comprises a second half shell and a plurality of second partition boards, the first half shell and the second half shell are connected to form a barrel structure together, the plurality of first partition boards are arranged at intervals along the axial direction of the barrel structure, the outer peripheral wall of the first partition boards is connected with the inner peripheral wall of the first half shell and is spaced from the inner peripheral wall of the second half shell, the plurality of second partition boards are arranged at intervals along the axial direction of the barrel structure, the outer peripheral wall of the second partition boards is connected with the inner peripheral wall of the second half shell and is spaced from the inner peripheral wall of the first half shell, and the plurality of first partition boards and the plurality of second partition boards are arranged in a staggered manner along the axial direction of the barrel structure; the first blanking cover and the second blanking cover are respectively arranged at the two axial ends of the cylinder structure and used for sealing the open openings at the two axial ends of the cylinder structure, the first blanking cover is provided with an inlet, and the second blanking cover is provided with an outlet.

According to the noise reduction device provided by the embodiment of the utility model, the first partition plate and the second partition plate which are spaced along the axial direction of the cylinder structure are arranged, the outer peripheral wall of the first partition plate is spaced from the inner peripheral wall of the second half shell, the outer peripheral wall of the second partition plate is spaced from the inner peripheral wall of the first half shell, and a space for liquid to flow through is reserved, so that the flowing speed of the liquid in the noise reduction device can be reduced, the vibration of the liquid in the noise reduction device is reduced, and the noise of the liquid in the hydraulic pipeline assembly is reduced. And the number of the frequency bands can be adjusted and reduced by adjusting the number of the first baffle plates and the second baffle plates and the length of the barrel structure in the axial direction, so that different requirements are met. In addition, compared with the prior art, the noise reduction strip is additionally arranged in the hydraulic pipeline, so that the pipe diameter of the hydraulic pipeline is ensured, and the liquid fluidity is improved.

In addition, the noise reduction device according to the present utility model may further have the following additional technical features:

in some embodiments, a side of the outer peripheral wall of each first separator, which is far away from the second half shell, is provided with a first notch, the inner wall of the first notch and the inner peripheral wall of the first half shell jointly define a first air outlet hole, and a side of the outer peripheral wall of each second separator, which is far away from the first half shell, is provided with a second notch, and the inner wall of the second notch and the inner peripheral wall of the second half shell jointly define a second air outlet hole.

In some embodiments, the first notch is located at a middle position of the first half shell along the circumferential direction of the cylinder structure, and the second notch is located at a middle position of the second half shell along the circumferential direction of the cylinder structure.

In some embodiments, gaps are defined between any adjacent first partition plate and second partition plate, and at least two gaps among the gaps have different distances along the axial direction of the cylinder structure.

In some embodiments, at least one of the first partition plates is provided with a first through hole penetrating through the first partition plate, and the first through hole is eccentrically arranged relative to the axis of the cylinder structure; and/or at least one second partition plate is provided with a second through hole penetrating through the second partition plate, and the second through hole is eccentrically arranged relative to the axis of the cylinder structure.

In some embodiments, when the first through hole is formed in the first partition board, the first through hole is located on a side, away from the second half shell, of the axis of the cylinder structure; and when the second through hole is formed in the second partition plate, the second through hole is positioned at one side of the axis of the cylinder structure, which is far away from the first half shell.

In some embodiments, the cylinder structure is cylindrical, the first half shell and the second half shell are both semi-cylindrical, the first baffle includes first semicircle board and second semicircle board that concentric relative setting and connection, the periphery wall of first semicircle board with the inner peripheral wall of first semicircle board is connected, the diameter of second semicircle board is less than the diameter of first semicircle board, the second baffle includes concentric relative setting and the third semicircle board and the fourth semicircle board of connection, the periphery wall of third semicircle board with the inner peripheral wall of second semicircle board is connected, the diameter of fourth semicircle board is less than the diameter of third semicircle board.

In some embodiments, the first housing component and the second housing component are identical in structure and size, and are connected after exchange when the cylinder structure is formed.

In some embodiments, one of the inlet and the outlet is disposed proximate to the first half-shell and the other is disposed proximate to the second half-shell.

A hydraulic circuit assembly according to an embodiment of the present utility model includes: a hydraulic line; according to the noise reduction device, the inlet and the outlet are connected in series to the hydraulic pipeline.

According to the hydraulic pipeline assembly provided by the embodiment of the utility model, the noise reduction device is arranged, the plurality of first partition plates and the plurality of second partition plates which are spaced along the axial direction of the cylinder structure are arranged, the outer peripheral wall of the first partition plate is spaced from the inner peripheral wall of the second half shell, the outer peripheral wall of the second partition plate is spaced from the inner peripheral wall of the first half shell, and a space for liquid to flow through is reserved, so that the flowing speed of the liquid in the noise reduction device can be reduced, the vibration of the liquid in the noise reduction device is reduced, and the noise of the liquid in the hydraulic pipeline assembly is reduced. And the number of the frequency bands can be adjusted and reduced by adjusting the number of the first baffle plates and the second baffle plates and the length of the barrel structure in the axial direction, so that different requirements are met. In addition, compared with the prior art, the noise reduction strip is additionally arranged in the hydraulic pipeline, so that the pipe diameter of the hydraulic pipeline is ensured, and the liquid fluidity is improved.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

FIG. 1 is a front view of a noise reduction assembly according to an embodiment of the present utility model;

FIG. 2 is a front view of a first housing assembly of a noise reduction assembly according to an embodiment of the present utility model;

FIG. 3 is a top view of a first housing assembly of a noise reduction assembly according to an embodiment of the present utility model;

FIG. 4 is a right side view of a first housing assembly of a noise reduction assembly according to an embodiment of the present utility model, wherein a first through hole is provided in a first bulkhead;

FIG. 5 is a left side view of a first housing assembly of the noise reduction assembly according to an embodiment of the present utility model;

fig. 6 is a left side view of a noise reduction assembly according to an embodiment of the utility model.

Reference numerals:

100. a noise reduction device; 101. a cylinder structure;

1. a first housing assembly; 11. a first half shell; 12. a first separator; 121. a first air outlet hole; 122. a first through hole; 123. a first semicircular plate; 124. a second semicircular plate;

2. a second housing assembly; 21. a second half shell; 22. a second separator; 221. a second air outlet hole; 222. a second through hole; 223. a third semicircular plate; 224. a fourth semicircular plate;

3. a first blanking cover; 31. an inlet;

4. a second blanking cover; 41. an outlet;

5. a pipe inlet joint;

6. and a pipe joint.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; the device can be mechanically connected, electrically connected and communicated; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

A noise reduction device 100 according to an embodiment of the present utility model is described below with reference to the accompanying drawings.

As shown in fig. 1, a noise reduction device 100 according to an embodiment of the present utility model includes: a first housing assembly 1, a second housing assembly 2, a first blanking cover 3 and a second blanking cover 4.

Specifically, referring to fig. 1 to 3, the first housing assembly 1 includes a first half shell 11 and a plurality of first partition plates 12, the second housing assembly 2 includes a second half shell 21 and a plurality of second partition plates 22, the first half shell 11 and the second half shell 21 are connected to form a cylinder structure 101 together, the plurality of first partition plates 12 are disposed at intervals along an axial direction (a direction shown with reference to fig. 1) of the cylinder structure 101, an outer peripheral wall of the first partition plates 12 is connected to an inner peripheral wall of the first half shell 11 and is spaced apart from an inner peripheral wall of the second half shell 21, the plurality of second partition plates 22 are disposed at intervals along the axial direction of the cylinder structure 101, an outer peripheral wall of the second partition plates 22 is connected to an inner peripheral wall of the second half shell 21 and is spaced apart from an inner peripheral wall of the first half shell 11, the plurality of first partition plates 12 and the plurality of second partition plates 22 are disposed alternately along the axial direction of the cylinder structure 101, and the plurality of first partition plates 12 and the plurality of second partition plates 22 are disposed to reduce a speed of liquid flowing in the noise reduction device 100, thereby reducing a vibration of the liquid in the noise reduction device 100, and thus reducing a liquid in the hydraulic noise in the noise assembly.

The outer peripheral wall of the first partition 12 is spaced from the inner peripheral wall of the second half shell 21, and the outer peripheral wall of the second partition 22 is spaced from the inner peripheral wall of the first half shell 11, so that a space through which the liquid flows can be reserved, and the plurality of first partitions 12 and the plurality of second partitions 22 are staggered along the axial direction of the cylinder structure 101, so that the path of the liquid in the cylinder structure 101 is in an S shape, and the flow velocity and vibration of the liquid in the noise reduction device 100 are further reduced. Compared with the prior art, the noise reduction strip is additionally arranged in the hydraulic pipeline, so that the pipe diameter of the hydraulic pipeline is ensured, and the liquid fluidity is improved. In addition, by adjusting the number of the first partition plates 12 and the second partition plates 22 and the length of the cylindrical structure 101 in the axial direction, the range of the reduced frequency band can be adjusted to meet different requirements.

In a specific example, the outer peripheral wall of the first separator 12 and the inner peripheral wall of the first half shell 11, and the outer peripheral wall of the second separator 22 and the inner peripheral wall of the second half shell 21 are uniformly welded, so that the reliability of the connection between the first separator 12 and the first half shell 11, and the connection between the second separator 22 and the second half shell 21 can be improved. Of course, the present utility model is not limited thereto, and other connection methods may be adopted between the outer peripheral wall of the first separator 12 and the inner peripheral wall of the first half shell 11, and the outer peripheral wall of the second separator 22 and the inner peripheral wall of the second half shell 21, and are not limited thereto.

Further, referring to fig. 1, the first plug 3 and the second plug 4 are respectively disposed at two axial ends of the cylinder structure 101 and used for sealing the open openings at two axial ends of the cylinder structure 101, so as to play a role in sealing, prevent liquid from leaking, and ensure tightness of the noise reduction device 100. Further, referring to fig. 1 and 6, the first cover 3 is provided with an inlet 31, and the second cover 4 is provided with an outlet 41, so that liquid can flow into the cylinder structure 101 from the hydraulic pipeline and flow into the hydraulic pipeline from the cylinder structure 101. When the noise reduction device 100 is in use, the first housing assembly 1 and the second housing assembly 2 are arranged in the vertical direction, the inlet 31 is provided on the lower side of the first blanking cover 3, and the outlet 41 is provided on the upper side of the second blanking cover 4.

According to the noise reduction device 100 of the embodiment of the present utility model, by providing the plurality of first partition plates 12 and second partition plates 22 spaced apart in the axial direction of the cylinder structure 101, and spacing the outer peripheral wall of the first partition plates 12 from the inner peripheral wall of the second half shell 21, the outer peripheral wall of the second partition plates 22 is spaced apart from the inner peripheral wall of the first half shell 11, leaving a space for the liquid to flow through, the speed of the liquid flowing in the noise reduction device 100 can be reduced, thereby reducing the vibration of the liquid in the noise reduction device 100, and reducing the noise of the liquid in the hydraulic line assembly. In addition, the number of the frequency bands can be adjusted and reduced by adjusting the number of the first partition plates 12 and the second partition plates 22 and the length of the barrel structure 101 in the axial direction, so that different requirements can be met. In addition, compared with the prior art, the noise reduction strip is additionally arranged in the hydraulic pipeline, so that the pipe diameter of the hydraulic pipeline is ensured, and the liquid fluidity is improved.

In some embodiments of the present utility model, referring to fig. 4 and 5, a side of the outer peripheral wall of each first partition 12 far from the second half shell 21 has a first notch, the inner wall of the first notch and the inner peripheral wall of the first half shell 11 jointly define a first air outlet hole 121, a side of the outer peripheral wall of each second partition 22 far from the first half shell 11 has a second notch, the inner wall of the second notch and the inner peripheral wall of the second half shell 21 jointly define a second air outlet hole 221, and the first air outlet hole 121 and the second air outlet hole 221 can pass air, so that air at the connection between the outer peripheral wall of the first partition 12 and the inner peripheral wall of the first half shell 11 or at the connection between the outer peripheral wall of the second partition 22 and the inner peripheral wall of the second half shell 21 can be discharged, thereby avoiding the influence on the performance of the noise reduction device 100 due to the presence of air. In a specific example, referring to fig. 4 and 5, the cross sections of the first notch and the second notch in the axial direction perpendicular to the cylinder structure 101 are V-shaped, and the side lengths of the first notch and the second notch are 2mm, so that gas can pass through, and liquid can be prevented from flowing through as much as possible.

In a further embodiment of the present utility model, referring to fig. 4 and 5, the first notch is located at a middle position of the first half shell 11 along the circumferential direction of the cylinder structure 101, and the second notch is located at a middle position of the second half shell 21 along the circumferential direction of the cylinder structure 101, it is understood that when the noise reduction device 100 is in use, the first shell assembly 1 and the second shell assembly 2 are arranged in the up-down direction, one of the first notch or the second notch is located at the upper end of the cylinder structure 101, and a space for gas to pass through can be reserved at the upper end of the cylinder structure 101, so that gas can always flow along the upper end of the cylinder structure 101, the time of the gas in the noise reduction device 100 is shortened, and the influence of the gas on the flow of liquid in the noise reduction device 100 is reduced.

In a further embodiment of the present utility model, referring to fig. 1, gaps are defined between any adjacent first separator 12 and second separator 22, and at least two gaps in the plurality of gaps have different distances along the axial direction of the cylinder structure 101, so that different wave bands in the different gaps can be ensured, and the speed of liquid flow and the frequency of vibration can be adjusted. Further, the length of the gap is 5-10mm in the axial direction of the cylinder structure 101, so that the flow speed of the liquid in the noise reduction device 100 can be reduced to a certain extent, and the flow speed of the liquid in the noise reduction device 100 is ensured not to be too low. For example, in the axial direction of the cylinder structure 101, the length of the gap may be 5mm, 6mm, 7mm, 8mm, 9mm, or 10mm.

In some embodiments of the present utility model, referring to fig. 2 and fig. 4, at least one first partition 12 is provided with a first through hole 122 penetrating through the first partition 12, where the first through hole 122 is eccentrically disposed with respect to the axis of the cylinder structure 101, so that a path through which the liquid flows in the cylinder structure 101 can be increased, and the liquid in different paths is converged to generate superposition of wave crests and wave troughs due to different paths through which the liquid flows, so that vibration of the liquid is reduced, and noise generated by the liquid flowing in the hydraulic pipeline is reduced. Further, a plurality of first through holes 122 penetrating the first partition 12 may be formed in one first partition 12, so that paths through which the liquid flows are increased, and vibration of the liquid can be further reduced due to different flow rates and different flow velocities of the liquid passing through different paths.

Further, the cross section of the first through hole 122 is oblong, circular or rectangular, which can meet different requirements. In a specific example, referring to fig. 4, the cross-section of the first through hole 122 is oblong in shape. The eccentricity of the first through hole 122 with respect to the axis of the cylindrical structure 101 is 3 to 10mm, and it should be noted that the eccentricity of the first through hole 122 with respect to the axis of the cylindrical structure 101 is the minimum value of the length from the center line of the width direction (direction b shown with reference to fig. 4) of the first through hole 122 to the axis of the cylindrical structure 101. The positions of the first through holes 122 on the plurality of first separators 12 provided with the first through holes 122 are the same in the radial direction of the cylindrical structure 101. For example, the eccentricity of the first through hole 122 with respect to the axis of the cylinder structure 101 may be 3mm, 4mm, 5mm, 6mm, 7mm, 8mm, 9mm, or 10mm. In one specific example, the first through hole 122 has an eccentricity of 3mm with respect to the axis of the cylinder structure 101.

Further, referring to fig. 1, at least one second partition 22 is provided with a second through hole 222 penetrating through the second partition 22, and the second through hole 222 is eccentrically disposed with respect to the axis of the cylinder structure 101, so that the path through which the liquid flows in the cylinder structure 101 can be increased, and the liquid in different paths can be converged to generate superposition of wave crests and wave troughs due to different paths through which the liquid flows, so that vibration of the liquid is weakened, and noise generated by the liquid flowing in the hydraulic pipeline is reduced. Further, a plurality of second through holes 222 penetrating the second partition 22 may be formed on one second partition 22, so that paths through which the liquid flows are increased, and the liquid flowing through the paths has different flow rates and different flow velocities, so that vibration of the liquid is further reduced.

Further, the cross section of the second through hole 222 is oblong, circular or rectangular, which can meet different requirements. Further, the eccentricity of the second through hole 222 with respect to the axis of the cylindrical structure 101 is 3-10mm, and it is noted that the eccentricity of the second through hole 222 with respect to the axis of the cylindrical structure 101 is the minimum value of the length from the center line of the width direction (direction b shown in fig. 1) of the second through hole 222 to the axis of the cylindrical structure 101. The positions of the second through holes 222 on the plurality of second separators 22 provided with the second through holes 222 are the same in the radial direction of the cylindrical structure 101. For example, the eccentricity of the second through hole 222 with respect to the axis of the cylinder structure 101 may be 3mm, 4mm, 5mm, 6mm, 7mm, 8mm, 9mm, or 10mm. In one specific example, the eccentricity of the second through hole 222 with respect to the axis of the cylinder structure 101 is 3mm.

In a further embodiment of the present utility model, referring to fig. 1, when the first through hole 122 is provided in the first partition 12, the first through hole 122 is located on the side of the axis of the cylindrical structure 101 away from the second half shell 21, so that the liquid passing through the first through hole 122 can be separated from the liquid passing through the gap between the outer peripheral wall of the first partition 12 and the inner peripheral wall of the second half shell 21, thereby making the splitting effect better; when the second through hole 222 is provided in the second partition 22, the second through hole 222 is located on the side of the axis of the cylindrical structure 101 away from the first half shell 11, so that the liquid passing through the second through hole 222 can be separated from the liquid passing through the gap between the outer peripheral wall of the second partition 22 and the inner peripheral wall of the first half shell 11, and the flow splitting effect is improved.

In some embodiments of the present utility model, referring to fig. 1 and 5, the cylindrical structure 101 is cylindrical, the first half-shell 11 and the second half-shell 21 are both semi-cylindrical, the first partition 12 includes a first half-disc 123 and a second half-disc 124 concentrically disposed opposite to and connected to each other, an outer circumferential wall of the first half-disc 123 is connected to an inner circumferential wall of the first half-shell 11, a diameter of the second half-disc 124 is smaller than that of the first half-disc 123, the second partition 22 includes a third half-disc 223 and a fourth half-disc 224 concentrically disposed opposite to and connected to each other, an outer circumferential wall of the third half-disc 223 is connected to an inner circumferential wall of the second half-shell 21, and a diameter of the fourth half-disc 224 is smaller than that of the third half-disc 223. It will be appreciated that referring to fig. 1, the second semicircular plate 124 is spaced apart from the inner circumferential wall of the second semicircular shell 21, the fourth semicircular plate 224 is spaced apart from the inner circumferential wall of the first semicircular shell 11, and the gap between the second semicircular plate 124 and the second semicircular shell 21 and the gap between the fourth semicircular plate 224 and the first semicircular shell 11 allow the liquid to bypass the first partition 12 or the second partition 22 and continue to flow in the noise reduction device 100.

Further, the gap between the second semicircular plate 124 and the second half shell 21 and the gap between the fourth semicircular plate 224 and the first half shell 11 are 2-3mm, so that the liquid can flow therethrough, and the flow rate and the flow velocity of the liquid can be controlled to some extent. For example, the gap between the second half plate 124 and the second half shell 21 and the gap between the fourth half plate 224 and the first half shell 11 may be 2mm, 2.3mm, 2.5mm, 2.7mm, or 3mm. In one specific example, the gap between the second half plate 124 and the second half shell 21 and the gap between the fourth half plate 224 and the first half shell 11 are 2.5mm.

In some embodiments of the present utility model, referring to fig. 1, the first housing component 1 and the second housing component 2 have the same structure and size, when the cylinder structure 101 is formed, the first housing component 1 and the second housing component 2 are connected after being exchanged, so that the die-sinking cost of the noise reduction device 100 can be reduced, the production processing and the connection of the noise reduction device 100 are facilitated, and the first housing component 1 and the second housing component 2 do not need to be distinguished after the connection is completed due to the same structure and size of the first housing component 1 and the second housing component 2, and the assembly and the fixation of the hydraulic pipeline component are facilitated.

In some embodiments of the present utility model, referring to fig. 1, one of the inlet 31 and the outlet 41 is disposed near the first half shell 11, and the other is disposed near the second half shell 21, so that the inlet 31 and the outlet 41 are respectively located at two ends of the cylinder structure 101 in the radial direction, so that the liquid can flow into the cylinder structure 101 from the hydraulic pipeline and flow into the hydraulic pipeline from the cylinder structure 101.

A noise reduction device 100 according to an embodiment of the present utility model is described below with reference to fig. 1 to 6.

Specifically, as shown in fig. 1 to 6, the noise reduction device 100 includes: a first housing assembly 1, a second housing assembly 2, a first blanking cover 3 and a second blanking cover 4.

Further, the first housing assembly 1 and the second housing assembly 2 are arranged in the up-down direction, the first housing assembly 1 includes a first half shell 11 and a plurality of first partition plates 12, the second housing assembly 2 includes a second half shell 21 and a plurality of second partition plates 22, the first half shell 11 and the second half shell 21 are connected to form a cylindrical barrel structure 101 together, and the first half shell 11 and the second half shell 21 are both semi-cylindrical.

Further, a plurality of first partition plates 12 are disposed at intervals along the axial direction of the cylindrical structure 101, the first partition plates 12 including first half-circular plates 123 and second half-circular plates 124 disposed concentrically opposite and connected, the outer peripheral wall of the first half-circular plates 123 being connected to the inner peripheral wall of the first half-shell 11, the second half-circular plates 124 having a smaller diameter than the first half-circular plates 123 and being spaced apart from the inner peripheral wall of the second half-shell 21; the plurality of second baffles 22 are arranged at intervals along the axial direction of the cylinder structure 101, the second baffles 22 comprise a third semicircular plate 223 and a fourth semicircular plate 224 which are concentrically arranged oppositely and connected, the outer circumferential wall of the third semicircular plate 223 is connected with the inner circumferential wall of the second semicircular plate 21, the diameter of the fourth semicircular plate 224 is smaller than that of the third semicircular plate 223 and is spaced from the inner circumferential wall of the first semicircular plate 11, the plurality of first baffles 12 and the plurality of second baffles 22 are arranged alternately along the axial direction of the cylinder structure 101, the flowing speed of liquid in the noise reduction device 100 can be reduced, the vibration of the liquid in the noise reduction device 100 is reduced, and the noise of the liquid in the hydraulic pipeline assembly is reduced.

Still further, gaps are defined between any adjacent first partition plate 12 and second partition plate 22, and at least two gaps in the plurality of gaps have different distances along the axial direction of the cylinder structure 101, so that different wave bands in different gaps can be ensured, and the speed of liquid flow and the frequency of vibration can be adjusted. Further, the at least one first partition 12 is provided with a first through hole 122 penetrating the first partition 12, the first through hole 122 is eccentrically arranged relative to the axis of the cylinder structure 101 and is located at one side of the axis of the cylinder structure 101 far away from the second half shell 21, the at least one second partition 22 is provided with a second through hole 222 penetrating the second partition 22, and the second through hole 222 is eccentrically arranged relative to the axis of the cylinder structure 101 and is located at one side of the axis of the cylinder structure 101 far away from the first half shell 11, so that the path for liquid to flow in the cylinder structure 101 can be increased, vibration of the liquid is weakened, and noise generated by liquid flowing in a hydraulic pipeline is reduced.

Further, a first gap is formed on one side of the outer peripheral wall of each first partition plate 12 far away from the second half shell 21, the first gap is located at a middle position of the first half shell 11 along the circumferential direction of the cylinder structure 101, the inner wall of the first gap and the inner peripheral wall of the first half shell 11 jointly define a first air outlet hole 121, a second gap is formed on one side of the outer peripheral wall of each second partition plate 22 far away from the first half shell 11, the second gap is located at a middle position of the second half shell 21 along the circumferential direction of the cylinder structure 101, the inner wall of the second gap and the inner peripheral wall of the second half shell 21 jointly define a second air outlet hole 221, the second air outlet hole 221 is located at the upper end of the cylinder structure 101, a space for gas to pass through can be reserved at the upper end of the cylinder structure 101, gas can flow through along the upper end of the cylinder structure 101 all the time, the time of the gas in the noise reduction device 100 is shortened, and the influence of the gas on the liquid flow in the noise reduction device 100 is reduced.

In addition, the first shell component 1 and the second shell component 2 have the same structure and size, and when the cylinder structure 101 is formed, the first shell component 1 and the second shell component 2 are connected after being exchanged, so that the die sinking cost of the noise reduction device 100 can be reduced, and the production, processing and connection of the noise reduction device 100 are facilitated.

In addition, the first blanking cover 3 and the second blanking cover 4 are respectively arranged at two axial ends of the cylinder structure 101 and used for blocking open openings at two axial ends of the cylinder structure 101, so that a sealing effect can be achieved, liquid leakage is prevented, and the tightness of the noise reduction device 100 is ensured. Further, the inlet 31 is disposed on the first cover 3 near the first half shell 11, and the outlet 41 is disposed on the second cover 4 near the second half shell 21, so that the liquid can flow into the cylinder structure 101 from the hydraulic pipeline and flow into the hydraulic pipeline from the cylinder structure 101.

The utility model also provides a hydraulic pipeline assembly with the embodiment.

The hydraulic line assembly according to the embodiment of the present utility model includes the hydraulic line and the noise reduction device 100 described above. Specifically, referring to fig. 1, an inlet pipe joint 5 and an outlet pipe joint 6 are provided on a noise reduction device 100, the noise reduction device 100 can be connected to a hydraulic pipeline assembly through the inlet pipe joint 5 and the outlet pipe joint 6, an inlet 31 and an outlet 41 are connected in series on the hydraulic pipeline, the inlet 31 is opposite to the inlet pipe joint 5, the outlet 41 is opposite to the outlet pipe joint 6, liquid in the hydraulic pipeline can flow into a cylinder structure 101 from the inlet pipe joint 5 through the inlet 31, and after noise reduction treatment in the noise reduction device 100, the liquid flows into the hydraulic pipeline from the outlet 41 through the outlet pipe joint 6. Further, the noise reduction device 100 needs to be assembled by a bracket, so that the noise reduction device 100 itself is prevented from generating vibration.

According to the hydraulic line assembly of the embodiment of the present utility model, by providing the noise reduction device 100 of the above embodiment, by providing the plurality of first and second partition plates 12 and 22 spaced apart in the axial direction of the cylinder structure 101, and spacing the outer peripheral wall of the first partition plate 12 from the inner peripheral wall of the second half shell 21, the outer peripheral wall of the second partition plate 22 is spaced apart from the inner peripheral wall of the first half shell 11, leaving a space through which liquid flows, the speed of liquid flowing in the noise reduction device 100 can be reduced, thereby reducing vibration of liquid in the noise reduction device 100, and reducing noise of liquid in the hydraulic line assembly. In addition, the number of the frequency bands can be adjusted and reduced by adjusting the number of the first partition plates 12 and the second partition plates 22 and the length of the barrel structure 101 in the axial direction, so that different requirements can be met. In addition, compared with the prior art, the noise reduction strip is additionally arranged in the hydraulic pipeline, so that the pipe diameter of the hydraulic pipeline is ensured, and the liquid fluidity is improved.

Other constructions and operations of the noise reducer 100 and hydraulic line assembly according to embodiments of the present utility model are known to those of ordinary skill in the art and will not be described in detail herein.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. A noise reduction device, comprising:

a first housing assembly (1), the first housing assembly (1) comprising a first half-shell (11) and a plurality of first partitions (12);

a second housing assembly (2), the second housing assembly (2) including a second half shell (21) and a plurality of second partition plates (22), the first half shell (11) and the second half shell (21) being connected to together constitute a cylindrical structure (101), the plurality of first partition plates (12) being disposed at intervals along an axial direction of the cylindrical structure (101), an outer peripheral wall of the first partition plates (12) being connected to an inner peripheral wall of the first half shell (11) and being spaced apart from an inner peripheral wall of the second half shell (21), the plurality of second partition plates (22) being disposed at intervals along the axial direction of the cylindrical structure (101), an outer peripheral wall of the second partition plates (22) being connected to an inner peripheral wall of the second half shell (21) and being spaced apart from an inner peripheral wall of the first half shell (11), the plurality of first partition plates (12) and the plurality of second partition plates (22) being disposed alternately along the axial direction of the cylindrical structure (101);

the novel plug comprises a first plug cover (3) and a second plug cover (4), wherein the first plug cover (3) and the second plug cover (4) are respectively arranged at two axial ends of a barrel structure (101) and are used for sealing open openings at two axial ends of the barrel structure (101), an inlet (31) is formed in the first plug cover (3), and an outlet (41) is formed in the second plug cover (4).

2. The noise reduction device according to claim 1, characterized in that a side of the outer peripheral wall of each first partition plate (12) remote from the second half shell (21) is provided with a first notch, the inner wall of the first notch and the inner peripheral wall of the first half shell (11) jointly define a first air outlet hole (121), and a side of the outer peripheral wall of each second partition plate (22) remote from the first half shell (11) is provided with a second notch, and the inner wall of the second notch and the inner peripheral wall of the second half shell (21) jointly define a second air outlet hole (221).

3. The noise reduction device according to claim 2, characterized in that the first notch is located at a middle position of the first half shell (11) in the circumferential direction of the cylinder structure (101), and the second notch is located at a middle position of the second half shell (21) in the circumferential direction of the cylinder structure (101).

4. A noise reduction device according to claim 2, characterized in that any adjacent first and second partition plates (12, 22) each define a gap therebetween, at least two of the gaps being different in distance along the axial direction of the cylinder structure (101).

5. The noise reduction device according to claim 1, characterized in that at least one of the first partition plates (12) is provided with a first through hole (122) penetrating the first partition plate (12), the first through hole (122) being arranged eccentrically with respect to the axis of the cylinder structure (101);

and/or at least one second partition board (22) is provided with a second through hole (222) penetrating through the second partition board (22), and the second through hole (222) is eccentrically arranged relative to the axis of the cylinder structure (101).

6. The noise reduction device according to claim 5, characterized in that, when the first through hole (122) is provided in the first partition (12), the first through hole (122) is located on the side of the cylinder structure (101) axis remote from the second half-shell (21);

when the second through hole (222) is arranged on the second partition plate (22), the second through hole (222) is positioned at one side of the axis of the cylinder structure (101) far away from the first half shell (11).

7. The noise reduction device according to claim 1, wherein the cylindrical structure (101) is cylindrical, the first half-shell (11) and the second half-shell (21) are both semi-cylindrical, the first partition plate (12) includes a first half-disc (123) and a second half-disc (124) that are concentrically disposed opposite to and connected, an outer peripheral wall of the first half-disc (123) is connected with an inner peripheral wall of the first half-shell (11), a diameter of the second half-disc (124) is smaller than a diameter of the first half-disc (123), the second partition plate (22) includes a third half-disc (223) and a fourth half-disc (224) that are concentrically disposed opposite to and connected, an outer peripheral wall of the third half-disc (223) is connected with an inner peripheral wall of the second half-shell (21), and a diameter of the fourth half-disc (224) is smaller than a diameter of the third half-disc (223).

8. Noise reduction device according to claim 1, characterized in that the first housing component (1) and the second housing component (2) are identical in structure and size, and that the first housing component (1) and the second housing component (2) are connected after exchange when the cylinder structure (101) is formed.

9. Noise reduction device according to claim 1, characterized in that one of the inlet (31) and the outlet (41) is arranged close to the first half-shell (11) and the other is arranged close to the second half-shell (21).

10. A hydraulic circuit assembly, comprising:

a hydraulic line;

the noise reduction device (100) according to any one of claims 1-9, the inlet (31) and the outlet (41) being connected in series on the hydraulic line.