CN213953686U

CN213953686U - Protective device of pneumatic motor

Info

Publication number: CN213953686U
Application number: CN202022373216.6U
Authority: CN
Inventors: 刘鑫烈
Original assignee: Hangzhou Linan Jiancheng Office Supplies Co Ltd
Current assignee: Hangzhou Linan Jiancheng Office Supplies Co Ltd
Priority date: 2020-10-22
Filing date: 2020-10-22
Publication date: 2021-08-13
Anticipated expiration: 2030-10-22

Abstract

The utility model provides a pneumatic motor's protector, half guard shield including the longitudinal symmetry setting, the up end of half guard shield is equipped with interconnect's motor groove and cylinder groove, the cross-section in motor groove is semi-circular, the cross-section in cylinder groove is the rectangle, the motor inslot is equipped with the cross-section and is semicircular amortization tile, the inner wall of amortization tile evenly is equipped with many sound absorption grooves. The noise of the pneumatic motor can be reduced through the design.

Description

Protective device of pneumatic motor

Technical Field

The utility model relates to a pneumatic equipment field specifically is a pneumatic motor's protector.

Background

The pneumatic motor is a device for driving a motor rotating shaft to rotate by using the pressure of compressed air, has a simple structure and a long service life compared with a motor starting motor, and is not influenced by a working environment, so that the pneumatic motor is more and more widely applied, for example, a patent with the application number of 201921123305.6, which comprises a main frame, a first pneumatic motor, a second pneumatic motor, a speed reducer, a reversing valve and an air inlet pipe assembly, wherein the first pneumatic motor, the second pneumatic motor, the speed reducer, the reversing valve and the air inlet pipe assembly are arranged on the main frame; the output shafts of the first pneumatic motor and the second pneumatic motor are in transmission connection with the speed reducer; the reversing valve is arranged above the speed reducer, and compressed air enters the first pneumatic motor and the second pneumatic motor through the air inlet pipe assembly and the reversing valve. Although the design improves the working efficiency, the noise is larger when the air conditioner works, and the air conditioner has certain limitation in practical use.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a pneumatic motor's protector has solved the problem of mentioning in the above-mentioned background art.

In order to achieve the above object, the utility model provides a pneumatic motor's protector, half guard shield including the longitudinal symmetry setting, the up end of half guard shield is equipped with interconnect's motor groove and cylinder groove, the cross-section in motor groove is semi-circular, the cross-section in cylinder groove is the rectangle, the motor inslot is equipped with the cross-section and is semicircular amortization tile, the inner wall of amortization tile evenly is equipped with many and inhales the sound groove, and this design can reduce pneumatic motor's noise.

Preferably, the upper end face of the half shield is symmetrically provided with pipeline grooves with semicircular sections, the pipeline grooves penetrate through the front end face of the half shield and then extend into the cylinder groove, and the design is favorable for mounting an air inlet pipe and an air outlet pipe of the pneumatic motor.

Preferably, the upper end face of the half shield is provided with a half shaft hole, the cross section of the half shaft hole is semicircular, the half shaft hole penetrates through the half shield along one side of the motor groove, and the design is favorable for mounting and fixing the output shaft of the pneumatic motor.

Preferably, the up end bilateral symmetry of half guard shield is equipped with a plurality of keyways, the keyway runs through the front and back end of half guard shield, just the cross-section of keyway is isosceles trapezoid, and this design does benefit to the installation and connects the key.

Preferably, a connecting key is arranged in the key groove, the cross section of the connecting key is an isosceles trapezoid with the upper bottom coinciding, the key groove and the connecting key are in interference fit, and the design can connect the half shields which are symmetrically arranged up and down into a complete shield.

Preferably, the cross section of the sound absorption groove is rectangular, the length of the rectangle is 2cm, the width of the rectangle is 1cm, and noise can be counteracted after being refracted for multiple times in the sound absorption groove through the design, so that noise reduction is realized.

Preferably, the bottom surface of the sound absorption groove is uniformly provided with a plurality of sound absorption holes, the diameters of the sound absorption holes are 0.5cm, and the design can absorb noise generated after the sound absorption groove is folded and offset.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model connects and fixes the half shield through the connecting key to form a sealed complete shield, thereby sealing the pneumatic motor in the shield and realizing sealing and noise reduction; furthermore, through setting up the sound absorption groove and inhaling the sound hole to realize that the noise offsets each other and absorbs after refracting many times, thereby realize the amortization and fall the noise.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged view of a half shroud of the present invention;

FIG. 3 is an enlarged view of the silencing tile of the present invention;

fig. 4 is an enlarged view of the connecting key of the present invention.

In the figure: A. a half shield; 1. a motor slot; 2. a cylinder groove; 3. a keyway; 11. a silencing tile; 12. a half shaft hole; 21. a pipe chase; 31. a connecting bond; 111. a sound absorbing groove; 1111. the sound absorbing hole.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully with reference to the accompanying drawings, in which several embodiments of the present invention are shown, but the present invention can be implemented in different forms, and is not limited to the embodiments described in the text, but rather, these embodiments are provided to make the disclosure of the present invention more thorough and comprehensive.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may be present, and when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present, as the terms "vertical", "horizontal", "left", "right" and the like are used herein for descriptive purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, and the use of the term knowledge in the specification of the present invention is for the purpose of describing particular embodiments and is not intended to limit the present invention, and the term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1-4, the utility model provides a pneumatic motor's protector, including the half guard shield A that the longitudinal symmetry set up, half guard shield A's up end is equipped with interconnect's motor groove 1 and cylinder groove 2, the cross-section of motor groove 1 is semi-circular, the cross-section of cylinder groove 2 is the rectangle, be equipped with cross-section semicircular amortization tile 11 in the motor groove 1, the inner wall of amortization tile 11 evenly is equipped with many and inhales sound groove 111, and this design can realize that pneumatic motor inhales the sound and falls and make an uproar.

Referring to fig. 2, the upper end surface of the half shroud a is symmetrically provided with duct grooves 21 having semicircular cross sections, the duct grooves 21 penetrate through the front end surface of the half shroud a and then extend into the cylinder groove 2, the upper end surface of the half shroud a is provided with a half shaft hole 12, the cross section of the half shaft hole 12 is semicircular, and the half shaft hole 12 penetrates through the half shroud a along one side of the motor groove 1, which is favorable for mounting and fixing the output shaft and the air pipe of the pneumatic motor.

Referring to fig. 1, 2 and 4, a plurality of key grooves 3 are symmetrically arranged on the left and right of the upper end surface of the half shield a, the key grooves 3 penetrate through the front end and the rear end of the half shield a, the cross sections of the key grooves 3 are isosceles trapezoids, connecting keys 31 are arranged in the key grooves 3, the cross sections of the connecting keys 31 are isosceles trapezoids with overlapped upper bottoms, the key grooves 3 and the connecting keys 31 are in interference fit, and the design can connect the half shields a which are symmetrically arranged up and down into a complete shield.

Preferably, the cross section of the sound absorption groove 111 is rectangular, the length of the rectangle is 2cm, the width of the rectangle is 1cm, a plurality of sound absorption holes 1111 are uniformly arranged on the bottom surface of the sound absorption groove 111, and the diameter of each sound absorption hole 1111 is 0.5 cm.

The utility model discloses a concrete operation as follows:

when the protective device of the pneumatic motor is used, the pneumatic motor is arranged in the half-shield A, the motor part of the pneumatic motor is wedged into the motor groove 1, the cylinder part is arranged in the cylinder groove 2, the output shaft is tightly attached to the half-shaft hole 12, then the positions of the air inlet pipe and the air outlet pipe are adjusted to be tightly attached to the pipeline groove 21, the other half-shield A is mutually attached to the half-shield A, the key groove 3 corresponds to the key groove 3, and then the connecting key 31 is wedged into the key groove 3, so that the upper half-shield A and the lower half-shield A are mutually connected to finish the installation of the protective shield;

when the starting motor is started, the pneumatic motor generates noise due to high-speed operation, when the noise is transmitted into the sound absorption groove 111, the noise can be refracted for many times in the sound absorption groove 111 due to the fact that the sound absorption groove 111 is provided with the rectangular cross section, a part of the noise can be counteracted mutually, a part of the noise can be absorbed by the sound absorption hole 1111, the rest of the noise can be sealed in the protective cover, and therefore only a few parts of the noise can be transmitted to the external environment.

The present invention has been described above with reference to the accompanying drawings, and it is obvious that the present invention is not limited by the above-mentioned manner, if the method and the technical solution of the present invention are adopted, the present invention can be directly applied to other occasions without substantial improvement, and the present invention is within the protection scope of the present invention.

Claims

1. The utility model provides a pneumatic motor's protector, includes half guard shield (A) that the longitudinal symmetry set up, its characterized in that: the upper end face of the half shield (A) is provided with a motor groove (1) and an air cylinder groove (2) which are connected with each other, the cross section of the motor groove (1) is semicircular, the cross section of the air cylinder groove (2) is rectangular, a silencing tile (11) with a semicircular cross section is arranged in the motor groove (1), and a plurality of sound absorption grooves (111) are uniformly formed in the inner wall of the silencing tile (11).

2. A pneumatic motor guard according to claim 1 wherein: pipeline grooves (21) with semicircular sections are symmetrically arranged on the upper end face of the half protective cover (A), and the pipeline grooves (21) penetrate through the front end face of the half protective cover (A) and then extend into the cylinder groove (2).

3. A pneumatic motor guard according to claim 2 wherein: the upper end face of the half shield (A) is provided with a half shaft hole (12), the cross section of the half shaft hole (12) is semicircular, and the half shaft hole (12) penetrates through the half shield (A) along one side of the motor groove (1).

4. A pneumatic motor guard according to claim 3 wherein: the up end bilateral symmetry of half guard shield (A) is equipped with a plurality of keyway (3), keyway (3) run through the front and back end of half guard shield (A), just the cross-section of keyway (3) is isosceles trapezoid.

5. A pneumatic motor guard according to claim 4 characterised in that: be equipped with connecting key (31) in keyway (3), the cross-section of connecting key (31) is the isosceles trapezoid of upper base coincidence, keyway (3) with connecting key (31) are interference fit.

6. A pneumatic motor guard according to claim 1 wherein: the cross section of the sound absorption groove (111) is rectangular, the length of the rectangle is 2cm, and the width of the rectangle is 1 cm.

7. A pneumatic motor guard according to claim 6 wherein: the bottom surface of sound absorption groove (111) evenly is equipped with a plurality of sound absorption holes (1111), the diameter of sound absorption hole (1111) is 0.5 cm.