Noise reduction structure for hydraulic pump

Abstract

The utility model discloses a noise reduction structure for a hydraulic pump, which relates to the technical field of hydraulic pumps and comprises a hydraulic pump main body, and a noise reduction shell is mounted outside the hydraulic pump main body; a plurality of heat dissipation side holes which are vertically arranged at intervals are formed in the inner walls of the two sides of the noise reduction shell, noise reduction plates are installed in open grooves in the inner walls of the noise reduction shell, outer assembly parts are installed on the outer walls of the two sides of the noise reduction shell, and the heat dissipation side holes communicate with the outer assembly parts through the noise reduction plates; and a noise reduction assembly is installed in the outer assembly part in a drawable mode, a plurality of noise reduction sponge strips which are vertically arranged at intervals are arranged on the side wall, close to the heat dissipation side holes, of the noise reduction plate, and a hollow cavity is formed in the noise reduction plate. The problems that an existing noise reduction structure of the hydraulic pump is directly installed on the inner wall of a box, so that the follow-up disassembling, taking out and replacing processes are inconvenient, the heat dissipation process of the hydraulic pump is easily affected, heat accumulation is caused, and normal use of the hydraulic pump is affected are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to hydraulic pump technical field, concretely is a kind of noise reduction structure for hydraulic pump. BACKGROUND

[0002] Hydraulic pump, provide pressurized liquid for hydraulic transmission a kind of hydraulic element, it is the pump, hydraulic pump in the operation process will produce greater noise, this not only influence the comfort of working environment, possibly also cause adverse effects to the health of operator, so need noise reduction measure to alleviate and improve;

[0003] For example, the announcement number: CN215890345U, named "a noise reduction hydraulic pump", including power part and liquid pumping part, power part is motor, and liquid pumping part is provided with input end and output end, power part and liquid pumping part are equipped with sound box, sound box is buckled with box cover, power part and liquid pumping part are placed in sound box, the opposite two side walls of sound box are provided with connecting pipe respectively, sound box is placed with sound insulation box, sound insulation box is opened with connecting hole at the position corresponding connecting pipe, connecting pipe is connected with pump body by penetrating connecting hole, sound insulation box and the inner wall of sound box are filled with sound reduction filler, the top of sound insulation box is provided with sound insulation cover, sound insulation cover is opened with sound insulation cavity, box cover is fixedly connected with sound pressure block, after box cover is buckled on sound box, sound pressure block side surface and the side wall of sound box abut, and sound pressure block is pressed tightly on the top of sound insulation box and sound reduction filler.

[0004] The above-mentioned existing hydraulic pump noise reduction structure is directly installed on the inner wall of the box, which makes the subsequent disassembly, removal and replacement process more inconvenient, and easily affects the heat dissipation process of the hydraulic pump, causing heat accumulation and affecting the normal use of the hydraulic pump. Therefore, it does not meet the existing needs, and a noise reduction structure for hydraulic pump is proposed. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a noise reduction structure for hydraulic pump to solve the problem of the existing hydraulic pump noise reduction structure being directly installed on the inner wall of the box, which makes the subsequent disassembly, removal and replacement process more inconvenient, and easily affects the heat dissipation process of the hydraulic pump, causing heat accumulation and affecting the normal use of the hydraulic pump.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a noise reduction structure for hydraulic pump, comprising: a hydraulic pump body, a noise reduction shell is installed on the outside of the hydraulic pump body; a plurality of vertically spaced apart heat dissipation side holes are formed on the inner walls of the two sides of the noise reduction shell, a noise reduction plate is installed in the slot of the inner wall of the noise reduction shell, an external assembly part is installed on the outer wall of each side of the noise reduction shell, and the heat dissipation side holes are communicated with the external assembly part through the noise reduction plate, and a noise reduction assembly is pullably installed in the inside of the external assembly part.

[0007] Preferably, the noise reduction plate is provided with a plurality of vertically spaced noise reduction sponge strips on the side wall close to the heat dissipation side hole, a hollow cavity is formed in the noise reduction plate, and an air outlet is formed on the side wall of the noise reduction plate close to the outer assembly.

[0008] Preferably, a pull groove is formed on the outer wall of the front end face of the noise reduction plate.

[0009] Preferably, the outer assembly comprises an assembly shell, an assembly cavity is formed in the assembly shell, a communication port is formed on the side of the assembly cavity close to the air outlet, an inclined portion is arranged on the lower surface of the assembly shell, and a filter screen is mounted in the opening of the outer wall of the inclined portion.

[0010] Preferably, a mounting portion is arranged below the inclined portion, and the mounting portion is combined and mounted with the noise reduction shell through bolts.

[0011] Preferably, the noise reduction assembly comprises a cavity communicating with the communication port, a plurality of transversely spaced sound absorbing cotton cavities are formed in the lower surface of the cavity, an end cover is arranged at one end of the cavity, and a pull block is mounted on the outer wall of the end cover.

[0012] Preferably, a rear cover is mounted on the outer wall of the rear end of the noise reduction shell through a clamping groove.

[0013] Compared with the prior art, the utility model has the beneficial effects that:

[0014] (1) In the utility model, the noise reduction shell is additionally arranged outside the hydraulic pump main body to improve the noise reduction effect during the operation of the pump body. The heat and sound generated during the operation are transmitted to the noise reduction plate through the heat dissipation side hole. The noise reduction plate scatters and absorbs the noise through the noise reduction sponge strips, thereby reducing the noise level. Then, the gas is introduced into the outer assembly through the air outlet. The noise is further reduced by the noise reduction assembly and then discharged through the filter screen. The device has a heat dissipation and noise reduction structure on both sides, which can effectively reduce the noise and avoid the accumulation of internal heat.

[0015] (2) In the utility model, the assembly cavity is used for assembling and placing the noise reduction assembly. The discharged gas and sound are guided into the cavity of the noise reduction assembly through the communication port. The noise is further scattered and silenced in the sound absorbing cotton cavity, and finally discharged through the filter screen, thereby further improving the noise reduction effect. When replacing the noise reduction assembly, the user only needs to pull the noise reduction assembly outward through the pull block. The user can conveniently replace and disassemble the device. When disassembling the outer assembly, the user can conveniently operate the device by assembling the assembly shell through the bolts of the mounting portion. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a whole structure schematic view of the utility model;

[0017] Figure 2The utility model discloses a noise reduction shell internal structure schematic view.

[0018] Figure 3 The utility model discloses a noise reduction board one side structure schematic view.

[0019] Figure 4 The utility model discloses a noise reduction board other side structure schematic view.

[0020] Figure 5 The utility model discloses an outer assembly part structure schematic view.

[0021] Figure 6 The utility model discloses a noise reduction assembly structure schematic view.

[0022] In the drawing: 1, hydraulic pump main body, 2, noise reduction shell, 201, card slot, 202, back cover, 203, heat dissipation side hole, 3, noise reduction board, 301, noise reduction sponge strip, 302, air outlet, 303, pull slot, 4, outer assembly part, 401, assembly shell, 402, assembly cavity, 403, intercommunication, 404, inclined part, 405, filter screen, 406, mounting part, 5, noise reduction assembly, 501, end cover, 502, pull block, 503, cavity, 504, sound absorbing cotton cavity. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0024] Please refer to Figures 1-6 The utility model provides an embodiment: a kind of noise reduction structure for hydraulic pump, it include: hydraulic pump main body 1, the outside of hydraulic pump main body 1 is equipped with noise reduction shell 2, and the outer wall on the rear end of noise reduction shell 2 is installed with back cover 202 by card slot 201 clamping, and back cover 202 is conveniently disassembled by clamping mode with card slot 201, and the inner wall on both sides of noise reduction shell 2 is all equipped with several heat dissipation side holes 203 arranged in vertical interval, and noise reduction board 3 is installed in the slot of the inner wall of noise reduction shell 2, and the outer wall on both sides of noise reduction shell 2 is all equipped with outer assembly part 4, and heat dissipation side hole 203 is communicated with outer assembly part 4 by noise reduction board 3, and the inside of outer assembly part 4 is equipped with noise reduction assembly 5 and can be pulled, and the side wall of noise reduction board 3 close to heat dissipation side hole 203 is equipped with several noise reduction sponge strips 301 arranged in vertical interval, and the inside of noise reduction board 3 is equipped with hollow cavity, and the side wall of noise reduction board 3 close to outer assembly part 4 is equipped with air outlet 302.

[0025] The noise reduction effect of the pump body during operation is improved by adding the noise reduction shell 2 outside the hydraulic pump body 1. The hot gas and sound during operation are transmitted to the noise reduction plate 3 through the setting of the heat dissipation side hole 203. The noise reduction plate 3 scatters and absorbs noise through the noise reduction sponge strip 301, reduces the noise decibel, and then the gas enters the external assembly 4 from the gas outlet 302. After further noise reduction by the internal noise reduction assembly 5, the gas is discharged, so that the device has a two-side heat dissipation and noise reduction structure, which can effectively reduce noise and avoid internal heat accumulation.

[0026] Further, the outer wall of the front end face of the noise reduction plate 3 is provided with a pull groove 303. Through the setting of the pull groove 303, the user can easily take out the noise reduction plate 3 from the groove, so as to facilitate the user to replace the noise reduction plate 3.

[0027] Please refer to Figures 5-6 The external assembly 4 includes an assembly shell 401, and the inside of the assembly shell 401 is provided with an assembly cavity 402. The side of the assembly cavity 402 close to the gas outlet 302 is provided with a communication port 403. The lower surface of the assembly shell 401 is provided with an inclined part 404, and the opening of the outer wall of the inclined part 404 is provided with a filter screen 405. The lower part of the inclined part 404 is provided with a mounting part 406, and the mounting part 406 is combined and mounted with the noise reduction shell 2 through bolts. The noise reduction assembly 5 includes a cavity 503 communicated with the communication port 403. The lower surface of the cavity 503 is provided with a plurality of sound-absorbing cotton cavities 504 arranged in transverse direction. One end of the cavity 503 is provided with an end cover 501, and the outer wall of the end cover 501 is provided with a pull block 502.

[0028] The assembly cavity 402 is used for assembling and placing the noise reduction assembly 5. The discharged gas and sound are guided into the cavity 503 of the noise reduction assembly 5 through the communication port 403. The noise is further scattered and silenced in the sound-absorbing cotton cavities 504, and finally discharged from the filter screen 405, further improving the noise reduction effect. The setting of the filter screen 405 can block and filter impurities in the gas, avoid the blockage of the internal noise reduction structure, and reduce the problem of shortening the replacement cycle caused by blockage.

[0029] When replacing the noise reduction assembly 5, the user only needs to pull out the noise reduction assembly 5 outward through the pull block 502, which is convenient for the user to replace and disassemble;

[0030] When the external assembly 4 is disassembled, it can be assembled through the bolts of the mounting part 406, which is convenient for the user to operate.

[0031] It is apparent for a person skilled in the art that the present application is not restricted to the details of the above exemplary embodiments, but that it can be implemented in other concrete forms without departing from the spirit or the essential characteristics of the present application. Therefore, the embodiments should be considered as exemplary only, and not limiting, the scope of the present application being defined by the appended claims rather than the above description, and all changes coming within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference signs in the claims should not be construed as limiting the claims concerned.

Claims

1. A noise reduction structure for a hydraulic pump, comprising a hydraulic pump body (1), a noise reduction shell (2) is mounted outside the hydraulic pump body (1); characterized in that: The inner wall of both sides of the noise reduction shell (2) is provided with a plurality of vertically spaced heat dissipation side holes (203), the inner wall of the noise reduction shell (2) is provided with a slotted noise reduction plate (3), the outer wall of both sides of the noise reduction shell (2) is provided with an outer assembly (4), and the heat dissipation side hole (203) is communicated with the outer assembly (4) through the noise reduction plate (3), and the inner part of the outer assembly (4) is provided with a noise reduction assembly (5).

2. The noise reduction structure for a hydraulic pump according to claim 1, characterized by: The side wall of the noise reduction plate (3) close to the heat dissipation side hole (203) is provided with a plurality of vertically spaced noise reduction sponge strips (301), the inner part of the noise reduction plate (3) is provided with a hollow cavity, and the side wall of the noise reduction plate (3) close to the outer assembly (4) is provided with an air outlet (302).

3. The noise reduction structure for a hydraulic pump according to claim 2, characterized by: The outer wall of the front end surface of the noise reduction plate (3) is provided with a pull groove (303).

4. The noise reduction structure for a hydraulic pump according to claim 2, characterized by: The outer assembly (4) comprises an assembly shell (401), the inner part of the assembly shell (401) is provided with an assembly cavity (402), the side of the assembly cavity (402) close to the air outlet (302) is provided with a communication port (403), the lower surface of the assembly shell (401) is provided with an inclined part (404), and the opening of the outer wall of the inclined part (404) is provided with a filter screen (405).

5. The noise reduction structure for a hydraulic pump according to claim 4, characterized by: The lower part of the inclined part (404) is provided with a mounting part (406), and the mounting part (406) is combined and mounted with the noise reduction shell (2) through bolts.

6. The noise reduction structure for a hydraulic pump according to claim 4, characterized by: The noise reduction assembly (5) comprises a cavity (503) communicated with the communication port (403), the lower surface of the cavity (503) is provided with a plurality of transversely spaced sound absorbing cotton cavities (504), one end of the cavity (503) is provided with an end cover (501), and the outer wall of the end cover (501) is provided with a pull block (502).

7. The noise reduction structure for a hydraulic pump according to claim 1, characterized by: The outer wall of the rear end of the noise reduction shell (2) is provided with a rear cover (202) through a clamping groove (201).

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