CN218151401U

CN218151401U - Noise reduction type gear pump

Info

Publication number: CN218151401U
Application number: CN202222304708.9U
Authority: CN
Inventors: 李慧娟
Original assignee: Anhui Youyuan Technology Co ltd
Current assignee: Anhui Youyuan Technology Co ltd
Priority date: 2022-08-31
Filing date: 2022-08-31
Publication date: 2022-12-27
Anticipated expiration: 2032-08-31

Abstract

The utility model discloses a type of making an uproar gear pump falls relates to gear pump technical field, including gear pump shell and the gear pump end cover of fixed connection on the gear pump shell, set up flutedly on the gear pump shell, the first baffle of fixedly connected with and second baffle in the recess, first baffle is located the inner circle of second baffle, and forms the vacuum cavity between the two, the second baffle with it has soundproof cotton to fill between the recess, the fixed suction pipe that has cup jointed on the gear pump shell, the fixed sound insulation sleeve that has cup jointed in outer lane of suction pipe, be provided with amortization spare in the suction pipe. The utility model discloses can block the propagation of noise, simultaneously under soundproof cotton's effect, the propagation of further separation noise has improved the amortization of gear pump and has fallen the performance of making an uproar under amortization piece and sound insulation sleeve's cooperation, gives people and brings a comfortable service environment, and compact structure has stronger practicality, is fit for a large amount of popularization.

Description

Noise reduction type gear pump

Technical Field

The utility model relates to a gear pump technical field, in particular to type of making an uproar gear pump falls.

Background

The gear pump is a rotary pump which can transfer liquid or pressurize it by means of the change and movement of working volume formed between pump cylinder and meshed gear, and is formed from two gears, pump body and front and rear covers, when the gears are rotated, the volume of space of gear disengagement side is changed from small to large, and formed into vacuum to suck liquid, and the volume of space of gear meshing side is changed from large to small to squeeze liquid into pipeline, and the suction cavity and discharge cavity are separated by means of meshing line of two gears, and the pressure of discharge outlet of gear pump is completely dependent on the resistance of pump outlet.

For example, the gear pump with the noise reduction function, which is provided with the publication number of CN216278461U, comprises a gear pump body and a noise reduction device; the surface of gear pump body is equipped with the device of making an uproar of falling, the device of making an uproar of falling includes two lagging, the inside sliding connection of lagging has two slip posts, the one end fixedly connected with fixture block of slip post, eight bottom plates of both sides fixedly connected with of gear pump body, and two liang of center pin symmetric distribution with the gear pump body of eight bottom plates, the draw-in groove has been seted up to the one end that the gear pump body was kept away from to the bottom plate, the cover has soundproof cotton on the surface of gear pump body, soundproof cotton's lateral wall is seted up porosely.

Although the utility model has the advantages that the handle is loosened to restore the elasticity of the first spring, the first spring drives the sliding column, the fixture block and the handle to reset through the disc, the fixture block drives the soundproof cotton to enter the clamping groove of the bottom plate for fixation, and then the soundproof cotton is fixed on the surface of the gear pump body, so that the soundproof cotton has the effects of sound insulation and noise reduction; but only through gear pump outside parcel soundproof cotton, the syllable-dividing effect that plays is not very good, and the noise can be propagated through other azimuths of gear pump, produces noise pollution.

SUMMERY OF THE UTILITY MODEL

To above-mentioned problem, the application provides a type of making an uproar gear pump falls has solved the not good problem of gear pump noise reduction effect among the prior art.

In order to achieve the above purpose, the present application provides the following technical solutions: the utility model provides a type of making an uproar gear pump falls, includes gear pump shell and the gear pump end cover of fixed connection on gear pump shell, set up flutedly on the gear pump shell, first baffle of fixedly connected with and second baffle in the recess, first baffle is located the inner circle of second baffle, and forms the vacuum cavity between the two, the second baffle with it has soundproof cotton to fill between the recess.

Preferably, the gear pump housing is fixedly sleeved with a suction pipe, the outer ring of the suction pipe is fixedly sleeved with a sound insulation sleeve, a silencing piece is arranged in the suction pipe, and the silencing piece is composed of a plurality of annular hollow pieces with triangular cross sections;

when the driving wheel drives the driven wheel to rotate, hydraulic fluid enters the silencing piece through the suction pipe, and then the hydraulic fluid enters the groove.

Preferably, an air valve which penetrates through and extends out of the gear pump shell is fixedly sleeved on the second partition plate;

preferably, a discharge pipe is fixedly sleeved on one side of the gear pump housing corresponding to the suction pipe.

Preferably, the bottom of the gear pump housing is fixedly connected with a base, and the base is provided with a mounting hole.

To sum up, the utility model discloses a technological effect and advantage:

the utility model discloses can block the propagation of noise, simultaneously under soundproof cotton's effect, the propagation of further separation noise has improved the amortization of gear pump and has fallen the performance of making an uproar under amortization piece and sound insulation sleeve's cooperation, gives people and brings a comfortable service environment, and compact structure has stronger practicality, is fit for a large amount of promotions.

Drawings

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

Fig. 1 is a first view structural diagram of a noise reduction type gear pump.

Fig. 2 is a second perspective view of the noise reduction type gear pump.

Fig. 3 is a schematic view of the internal structure of the gear pump housing.

Fig. 4 is a sectional structural schematic diagram of a gear pump housing.

FIG. 5 is a cross-sectional view of the suction pipe

In the figure: 1. a gear pump housing; 101. a groove; 2. a gear pump end cover; 3. a gas valve; 4. a discharge pipe; 5. a base; 6. a sound-insulating sleeve; 7. a suction pipe; 8. a first separator; 9. a second separator; 10. sound insulation cotton; 11. a noise reducing member; 12. a vacuum chamber.

Detailed Description

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

The embodiment is as follows: referring to fig. 1-5, the noise reduction type gear pump comprises a gear pump shell 1 and a gear pump end cover 2 fixedly connected to the gear pump shell 1, wherein a groove 101 is formed in the gear pump shell 1, a first partition plate 8 and a second partition plate 9 are fixedly connected to the interior of the groove 101, the first partition plate 8 is located on the inner ring of the second partition plate 9, a vacuum cavity 12 is formed between the first partition plate and the second partition plate, and soundproof cotton 10 is filled between the second partition plate 9 and the groove 101.

When the driving wheel drives the driven wheel to rotate, the flow fluctuation of hydraulic fluid can be caused when the corresponding wheel teeth are meshed in and out between the gears, the flow fluctuation is spread outwards to generate noise, at the moment, the spread of the noise is blocked under the action of the vacuum cavity 12, and meanwhile, the spread of the noise is further blocked under the action of the soundproof cotton 10, so that the purpose of noise reduction is achieved.

A suction pipe 7 is fixedly sleeved on the gear pump shell 1, a sound insulation sleeve 6 is fixedly sleeved on the outer ring of the suction pipe 7, a silencing piece 11 is arranged in the suction pipe 7, and the silencing piece 11 is composed of a plurality of annular hollow pieces with triangular cross sections;

when the action wheel drives the driven wheel to rotate, hydraulic fluid enters the silencing piece 11 through the suction pipe 7, and when the hydraulic fluid enters the silencing piece 11, the hydraulic fluid expands and contracts firstly, so that pulsation is gradually reduced, the silencing purpose is achieved, noise is further reduced through the matching of the sound insulation sleeve 6, and then the hydraulic fluid enters the groove 101.

As shown in fig. 1, the second partition plate 9 is fixedly sleeved with the air valve 3 which penetrates through and extends to the outside of the gear pump housing 1.

When taking off gear pump end cover 2 from gear pump casing 1 and maintaining the gear pump, in the outside air can enter into vacuum cavity 12, after the maintenance is accomplished, gear pump end cover 2 is connected with gear pump casing 1 again, carries out the evacuation operation again through air valve door 3 this moment for vacuum cavity 12 reforms the vacuum environment, cooperates soundproof cotton 10 to strengthen the noise reduction of gear pump.

As shown in fig. 1, the gear pump housing 1 is fixedly fitted with the discharge pipe 4 on the side corresponding to the suction pipe 7, so that a passage is formed by the suction pipe 7 to discharge the fluid out of the groove 101.

In consideration of the assembly problem of the gear pump housing 1, as shown in fig. 1 and fig. 2, a base 5 is fixedly connected to the bottom of the gear pump housing 1, a mounting hole is formed in the base 5, and the base 5 is mounted on a proper position by common means such as screws.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions on some technical features, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of the present invention.

Claims

1. The utility model provides a type of making an uproar gear pump falls, includes gear pump casing (1) and gear pump end cover (2) of fixed connection on gear pump casing (1), its characterized in that: the gear pump is characterized in that a groove (101) is formed in the gear pump shell (1), a first partition plate (8) and a second partition plate (9) are fixedly connected in the groove (101), the first partition plate (8) is located at the inner ring of the second partition plate (9), a vacuum cavity (12) is formed between the first partition plate and the second partition plate, and soundproof cotton (10) is filled between the second partition plate (9) and the groove (101).

2. The noise-reducing gear pump according to claim 1, wherein: the gear pump is characterized in that a suction pipe (7) is fixedly sleeved on the gear pump shell (1), a sound insulation sleeve (6) is fixedly sleeved on the outer ring of the suction pipe (7), a silencing piece (11) is arranged in the suction pipe (7), and the silencing piece (11) is composed of a plurality of annular hollow pieces with triangular cross sections;

when the driving wheel drives the driven wheel to rotate, hydraulic fluid enters the silencing piece (11) through the suction pipe (7), and then the hydraulic fluid enters the groove (101).

3. The noise-reducing gear pump according to claim 1, wherein: and an air valve (3) which penetrates through and extends to the outside of the gear pump shell (1) is fixedly sleeved on the second partition plate (9).

4. The noise-reducing gear pump according to claim 2, wherein: and a discharge pipe (4) is fixedly sleeved on one side of the gear pump shell (1) corresponding to the suction pipe (7).

5. The noise-reducing gear pump according to claim 1, wherein: the bottom fixedly connected with base (5) of gear pump casing (1), the mounting hole has been seted up on base (5).