CN215596064U - Hydraulic cylinder for noise reduction type engineering - Google Patents
Hydraulic cylinder for noise reduction type engineering Download PDFInfo
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- CN215596064U CN215596064U CN202121490954.7U CN202121490954U CN215596064U CN 215596064 U CN215596064 U CN 215596064U CN 202121490954 U CN202121490954 U CN 202121490954U CN 215596064 U CN215596064 U CN 215596064U
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Abstract
The utility model relates to a noise reduction type hydraulic cylinder for engineering, which comprises a cylinder body, a first end cover, a second end cover, a piston rod, a piston and a noise reduction assembly, wherein the first end cover is arranged on the cylinder body; the noise reduction assembly comprises a first cover plate, a second cover plate, a cylinder body, an elastic element and a micropore sound absorption piece; a closed sound absorption space is formed by the inner wall of the first cover plate, the inner wall of the cylinder body, the outer wall of the second cover plate, the outer wall of the cylinder body and the outer wall of the second end cover; the micropore sound absorption piece is arranged in the sound absorption space, and sound absorption holes are formed in the micropore sound absorption piece. Also comprises a soft resonance body; the soft resonance body is arranged in the sound absorption hole. The cylinder body is formed by sequentially attaching a metal layer, a sound absorption layer and a microporous rock plate layer from outside to inside. The noise generated by the movement of the piston of the hydraulic cylinder can be absorbed, and simultaneously, the supporting points of the piston rod outside the cylinder body are increased, so that the movement of the piston rod is more stable, and the generated noise is less than that of the piston rod of one supporting point.
Description
Technical Field
The utility model relates to the technical field of hydraulic cylinders, in particular to a noise reduction type hydraulic cylinder for engineering.
Background
In industrial control processes, hydraulic control systems are used in large numbers, wherein hydraulic cylinders are the core elements of the hydraulic control systems. The hydraulic cylinder is a device for converting hydraulic energy into mechanical energy to enable the machine to realize reciprocating linear motion or swing, and the hydraulic cylinder is stable in transmission work and high in reliability. The hydraulic cylinder used in engineering is often large in load and large in noise, so that the working environment of the hydraulic cylinder is poor, and the hydraulic cylinder is in the environment for a long time and is unfavorable for physical and psychological health of people.
Therefore, there is a need for a new hydraulic cylinder for engineering purposes to improve and solve the above-mentioned drawbacks.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects in the prior art, the utility model aims to provide the noise reduction type hydraulic cylinder for the engineering, which can absorb the noise generated by the movement of the piston of the hydraulic cylinder, and meanwhile, the support points of the piston rod outside the cylinder body are increased, so that the movement of the piston rod is more stable, and the generated noise is less than that of the piston rod at one support point.
The technical purpose of the utility model is realized by the following technical scheme: a noise reduction type hydraulic cylinder for engineering comprises a cylinder body, a first end cover, a second end cover, a piston rod, a piston and a noise reduction assembly;
the first end cover is fixed at the end part of one end of the cylinder body, the second end cover is fixed at the end part of the other end of the cylinder body, and the first end cover and the second end cover are respectively connected with two ends of the cylinder body in a sealing way;
one end of the piston rod penetrates through the second end cover to be connected into the cylinder body in a sliding mode, and the piston is fixed to the end portion of one end of the piston rod;
the noise reduction assembly comprises a first cover plate, a second cover plate, a cylinder body, an elastic element and a micropore sound absorption piece;
the first cover plate is sleeved and fixed on the outer wall of the first end cover, the second cover plate is sleeved and arranged on the outer wall of the piston rod extending out of the second cover plate, and the piston rod is movably connected with the second cover plate;
two ends of the cylinder are respectively fixedly connected with the first cover plate and the second cover plate;
the inner wall of the first cover plate, the inner wall of the cylinder body, the outer wall of the second cover plate, the outer wall of the cylinder body and the outer wall of the second end cover form a closed sound absorption space;
the micropore sound absorption piece is arranged in the sound absorption space, one end of the elastic element is fixedly connected with the inner wall of the cylinder body, the other end of the elastic element is fixedly connected with the outer wall of the micropore sound absorption piece, and the micropore sound absorption piece is provided with sound absorption holes.
In one embodiment, the device further comprises a soft resonance body;
the soft resonance body is arranged in the sound absorption hole.
In one embodiment, the sound absorbing holes are one of circular holes, diamond holes, or elliptical holes.
In one embodiment, the soft resonator is a spheroid.
In one embodiment, the microporous sound absorber is a cylinder body, and is sleeved outside the cylinder body.
In one embodiment, the sound absorption holes are distributed on the microporous sound absorption piece uniformly;
the number of the soft resonance bodies is the same as that of the sound absorption holes.
In one embodiment, the cylinder body is formed by laminating a metal layer, a sound absorption layer and a microporous rock plate layer from outside to inside in sequence.
In one embodiment, the first cover plate and the second cover plate are made of the same material as the cylinder.
In one embodiment, the device further comprises a first pull ring;
the first pull ring is fixed at the end part of the other end of the piston rod.
In one embodiment, the pull ring further comprises a second pull ring;
the second tab is secured to an exterior of the first end cap.
In conclusion, the utility model has the following beneficial effects:
the first, the piston rod is located to the second apron cover and is extended on the outer wall of second end cover, makes the piston rod be reciprocating motion's in-process, has two strong points of second end cover and second apron to make the piston rod more stable than the condition of only one strong point at the in-process of work, consequently the friction between piston rod and the cylinder body inner wall, between piston rod and the second end cover reduces, and the noise has also reduced.
Secondly, the micropore sound absorption piece absorbs noise generated in the working process of the piston rod; when the soft resonance body in the sound absorption hole receives sound waves transmitted by noise, the soft resonance body generates vibration, energy carried by the noise sound waves is consumed, sound energy is converted into heat energy through vibration friction, and the effects of noise reduction and sound absorption are achieved. Moreover, the barrel is provided with a sound absorption layer made of sound absorption cotton or other sound absorption materials, so that the noise generated by the hydraulic cylinder is further absorbed, and the effects of noise reduction and sound absorption are better achieved.
Drawings
FIG. 1 is a schematic perspective view of a noise-reducing hydraulic cylinder for construction according to the present invention;
FIG. 2 is a schematic cross-sectional perspective view of the noise-reducing hydraulic cylinder for construction of the present invention with the elastic member and the soft resonator removed;
FIG. 3 is a schematic cross-sectional plan view of the noise-reducing hydraulic cylinder for construction of the present invention with the elastic member and the soft resonant body removed;
FIG. 4 is a schematic longitudinal sectional view of the noise reduction type hydraulic cylinder for engineering provided by the present invention;
FIG. 5 is a schematic structural view of the barrel material component.
In the figure: 1-a cylinder body; 2-a first end cap; 3-a second end cap; 4-a piston rod; 5-a piston; 6-a noise reduction assembly; 61-a first cover plate; 62-a second cover plate; 63-a cylinder body; 631-a metal layer; 632-a sound absorbing layer; 633-microporous rock laminate layer; 64-a resilient element; 65-microporous sound absorbers; 651-sound absorbing aperture; 66-a sound-absorbing space; 67-soft resonator; 7-a first tab; 8-second tab.
Detailed Description
The utility model is described in detail below with reference to the figures and examples.
It should be noted that all the directional terms such as "upper" and "lower" referred to herein are used with respect to the view of the drawings, and are only for convenience of description, and should not be construed as limiting the technical solution.
See fig. 1-4
The utility model provides a noise reduction type hydraulic cylinder for engineering, which comprises a cylinder body 1, a first end cover 2, a second end cover 3, a piston rod 4, a piston 5 and a noise reduction assembly 6, wherein the cylinder body is provided with a first end cover and a second end cover; the first end cover 2 is fixed at the end part of one end of the cylinder body 1, the second end cover 3 is fixed at the end part of the other end of the cylinder body 1, and the first end cover 2 and the second end cover 3 are respectively connected with two ends of the cylinder body 1 in a sealing way; one end of the piston rod 4 penetrates through the second end cover 3 to be connected into the cylinder body 1 in a sliding mode, and the piston 5 is fixed to the end portion of one end of the piston rod 4; the noise reduction assembly 6 comprises a first cover plate 61, a second cover plate 62, a cylinder 63, an elastic element 64 and a micropore sound absorption piece 65; the first cover plate 61 is fixedly sleeved on the outer wall of the first end cover 2, the second cover plate 62 is sleeved on the outer wall of the part of the piston rod 4 extending out of the second cover plate 62, and the piston rod 4 is movably connected with the second cover plate 62; two ends of the cylinder 63 are fixedly connected with the first cover plate 61 and the second cover plate 62 respectively; a closed sound absorption space 66 is formed by the inner wall of the first cover plate 61, the inner wall of the cylinder 63, the outer wall of the second cover plate 62, the outer wall of the cylinder body 1 and the outer wall of the second end cover 3; the micropore sound absorption piece 65 is arranged in the sound absorption space 66, one end of the elastic element 64 is fixedly connected with the inner wall of the cylinder body 1, the other end of the elastic element 64 is fixedly connected with the outer wall of the micropore sound absorption piece 65, and the micropore sound absorption piece 65 is provided with a sound absorption hole 651. The sound absorbing member 65 is made of polyester fiber.
Further comprises a soft resonator 67; the soft resonators 67 are provided in the sound absorbing holes 651. The sound absorption holes 651 are one of circular holes, rhombic holes, or elliptical holes. The soft resonators 67 are spherical bodies. The soft resonator 67 is made of latex, silica gel or a composite material. The microporous sound absorber 65 is a cylindrical body, and is fitted around the outside of the cylinder block 1. The sound absorption holes 651 are uniformly distributed on the micropore sound absorption piece 65; the number of the soft resonators 67 is the same as that of the sound absorbing holes 651.
The first cover plate 61, the second cover plate 62 and the cylinder 63 are integrally formed. The elastic member 64 is a spring, and the elastic member 64 is plural.
Preferably, a first tab 7 is also included; a first pull ring 7 is fixed to the end of the other end of the piston rod 4. A second pull ring 8; the second tab 8 is secured to the exterior of the first end cap 2. The first and second pull rings 7, 8 facilitate providing a point of attack during the movement of the hydraulic cylinder.
See FIG. 5
Preferably, the cylinder 63 is formed by sequentially bonding a metal layer 631, a sound absorbing layer 632, and a microporous rock plate layer 633 from outside to inside, and the first cover plate 61 and the second cover plate 62 are both made of the same material as the cylinder 63. The sound absorption layer 632 is made of sound absorption cotton or other sound absorption materials, and the microporous rock plate layer 633 is made of sound absorption perlite plates.
The noise reduction principle of the noise reduction type hydraulic cylinder for engineering of the embodiment is as follows:
firstly, the second cover plate 62 is sleeved on the outer wall of the piston rod 4 extending out of the second end cover 3, so that the piston rod 4 has two supporting points of the second end cover 3 and the second cover plate 62 in the process of reciprocating motion, and the piston rod is more stable than the situation of only one supporting point in the working process, therefore, the friction between the piston rod 4 and the inner wall of the cylinder body 1 and between the piston rod and the second end cover 3 is reduced, and the noise is also reduced.
Secondly, the micropore sound absorption piece 65 absorbs noise generated in the working process of the piston rod 4; in addition, when the soft resonance body 67 in the sound absorption hole 65 receives the sound wave transmitted by the noise, the soft resonance body 67 generates vibration, the energy carried by the noise sound wave is consumed, and the sound energy is converted into heat energy through vibration friction, so that the effects of noise reduction and sound absorption are achieved. Moreover, the cylinder 63 is provided with a sound absorption layer made of sound absorption cotton or other sound absorption materials, so that noise generated by the hydraulic cylinder is further absorbed, and the effects of noise reduction and sound absorption are better achieved.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the utility model may occur to those skilled in the art without departing from the principle of the utility model, and are considered to be within the scope of the utility model.
Claims (10)
1. The utility model provides a type of making an uproar pneumatic cylinder for engineering falls which characterized in that:
the cylinder comprises a cylinder body (1), a first end cover (2), a second end cover (3), a piston rod (4), a piston (5) and a noise reduction assembly (6);
the first end cover (2) is fixed at the end part of one end of the cylinder body (1), the second end cover (3) is fixed at the end part of the other end of the cylinder body (1), and the first end cover (2) and the second end cover (3) are respectively in sealing connection with two ends of the cylinder body (1);
one end of the piston rod (4) penetrates through the second end cover (3) to be connected into the cylinder body (1) in a sliding mode, and the piston (5) is fixed to the end portion of one end of the piston rod (4);
the noise reduction assembly (6) comprises a first cover plate (61), a second cover plate (62), a cylinder body (63), an elastic element (64) and a micropore sound absorption piece (65);
the first cover plate (61) is fixedly sleeved on the outer wall of the first end cover (2), the second cover plate (62) is sleeved on the outer wall of the part, extending out of the second cover plate (62), of the piston rod (4), and the piston rod (4) is movably connected with the second cover plate (62);
two ends of the cylinder (63) are respectively fixedly connected with the first cover plate (61) and the second cover plate (62);
the inner wall of the first cover plate (61), the inner wall of the cylinder body (63), the outer wall of the second cover plate (62), the outer wall of the cylinder body (1) and the outer wall of the second end cover (3) form a closed sound absorption space (66);
micropore sound absorption piece (65) are located in sound absorption space (66), the one end of elastic element (64) with the inner wall fixed connection of cylinder body (1), the other end of elastic element (64) with the outer wall fixed connection of micropore sound absorption piece (65), sound absorption hole (651) have been seted up on micropore sound absorption piece (65).
2. The noise-reducing hydraulic cylinder for construction according to claim 1, wherein:
further comprises a soft resonator (67);
the soft resonance body (67) is provided in the sound absorption hole (651).
3. The noise-reducing hydraulic cylinder for construction according to claim 2, wherein:
the sound absorption holes (651) are one of circular holes, rhombic holes or elliptical holes.
4. The noise-reducing hydraulic cylinder for construction according to claim 3, wherein:
the soft resonator (67) is a spheroid.
5. The noise-reducing hydraulic cylinder for engineering according to claim 4, wherein:
the micropore sound absorption piece (65) is a cylinder body and is sleeved outside the cylinder body (1).
6. The noise-reducing hydraulic cylinder for construction according to claim 5, wherein:
the sound absorption holes (651) are multiple and are uniformly distributed on the micropore sound absorption piece (65);
the number of the soft resonance bodies (67) is the same as the number of the sound absorption holes (651).
7. The noise-reducing hydraulic cylinder for construction according to claim 6, wherein:
the cylinder (63) is formed by sequentially attaching a metal layer (631), a sound absorption layer (632) and a microporous rock plate layer (633) from outside to inside.
8. The noise-reducing hydraulic cylinder for construction according to claim 7, wherein:
the first cover plate (61) and the second cover plate (62) are made of the same material as the cylinder (63).
9. The noise-reducing hydraulic cylinder for construction according to claim 8, wherein:
further comprising a first tab (7);
the first pull ring (7) is fixed at the end part of the other end of the piston rod (4).
10. The noise-reducing hydraulic cylinder for construction according to claim 9, wherein:
further comprising a second tab (8);
the second pull ring (8) is fixed on the outer part of the first end cover (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121490954.7U CN215596064U (en) | 2021-06-30 | 2021-06-30 | Hydraulic cylinder for noise reduction type engineering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121490954.7U CN215596064U (en) | 2021-06-30 | 2021-06-30 | Hydraulic cylinder for noise reduction type engineering |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215596064U true CN215596064U (en) | 2022-01-21 |
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ID=79876972
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121490954.7U Active CN215596064U (en) | 2021-06-30 | 2021-06-30 | Hydraulic cylinder for noise reduction type engineering |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215596064U (en) |
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2021
- 2021-06-30 CN CN202121490954.7U patent/CN215596064U/en active Active
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