CN113199594A

CN113199594A - Pneumatic external vibrator with simple structure

Info

Publication number: CN113199594A
Application number: CN202110702032.6A
Authority: CN
Inventors: 白光明; 张学栋; 王秋生; 郭双飞; 郑广军
Original assignee: ANYANG VIBRATOR CO LTD
Current assignee: ANYANG VIBRATOR CO LTD
Priority date: 2021-06-24
Filing date: 2021-06-24
Publication date: 2021-08-03

Abstract

A pneumatic external vibrator with simple structure belongs to the technical field of engineering machinery. The technical scheme of the invention is as follows: a fixed body is arranged in a support of the pneumatic vibrator, an air passage body is arranged in the fixed body, a shaft is arranged in the air passage body, and a rolling sleeve is arranged between the shaft and the fixed body; a blind hole is formed in the center of the shaft, four uniformly distributed radial holes are formed in the bottom of the blind hole, and a groove for accommodating the roller sleeve is formed in the left end of the shaft; the center of the air passage body is provided with a through hole for installing a shaft, the middle of the through hole is provided with a circumferential groove, four uniformly distributed radial holes are formed in the circumferential groove, and the left end of the air passage body is provided with a large-pitch rectangular thread to form an air passage; the inner diameter and the outer diameter of the roller sleeve are designed according to vibration parameters of the pneumatic vibrator; the circumferential gap between the left end of the shaft and the left end of the fixing body forms an exhaust hole. The beneficial effects are that: the vibration generator has the advantages of simple structure, reliable operation, simple and convenient maintenance, high production efficiency, good vibration effect, long service life, wide application range, novel design, reasonable structure, safety and reliability.

Description

Pneumatic external vibrator with simple structure

Technical Field

A pneumatic external vibrator with simple structure belongs to the technical field of engineering machinery.

Background

With the continuous and high-speed development of national economy in China, the demand of various industries on pneumatic vibrators is continuously increased, and the pneumatic vibrators are particularly and more widely applied to the fields of water conservancy and hydropower, underground mines, concrete prefabricated parts and the like. The pneumatic vibrator takes compressed air as a power source, air holes in the concrete mixture are compactly removed through vibration, the strength of the concrete structure is improved, and the solidification time of the concrete structure is shortened. The company is a professional enterprise for producing vibration machines, and develops and produces various series of vibration machines such as electric machines, motor machines, pneumatic machines and the like. In the pneumatic vibrator, a pneumatic external vibrator that we first developed has obtained national patent, patent No. 200920088382.2; later we improved it with the addition of leak-proof structures, also gaining national patent, patent No. 201920122945.9; in the past, the leakage-proof structure is improved, and a national patent is applied for a pneumatic vibrator for improving the leakage-proof structure; in summary, in the field of pneumatic vibrators, we are at the forefront of the industry. However, the existing pneumatic vibrator is still unsatisfied, the technical innovation is endless, and the existing pneumatic vibrator is always complex in structure and high in manufacturing cost. Through the struggle of our struggle, the pneumatic external vibrator with simple structure and lower cost is finally innovated and developed.

Disclosure of Invention

The invention aims to innovatively develop a pneumatic external vibrator with a simple structure, and meet the requirements of the fields of water conservancy and hydropower, underground mines, concrete prefabricated parts and the like on the pneumatic vibrator.

The technical scheme of the invention is as follows: a fixed body is arranged in a support of the pneumatic vibrator, an air passage body is arranged in the fixed body, a shaft is arranged in the air passage body, and a rolling sleeve is arranged between the shaft and the fixed body; a blind hole is formed in the center of the shaft, four uniformly distributed radial holes are formed in the bottom of the blind hole, and a groove for accommodating the roller sleeve is formed in the left end of the shaft; the center of the air passage body is provided with a through hole for installing a shaft, the middle of the through hole is provided with a circumferential groove, four uniformly distributed radial holes are formed in the circumferential groove, and the left end of the air passage body is provided with a large-pitch rectangular thread to form an air passage; the inner diameter and the outer diameter of the roller sleeve are designed according to vibration parameters of the pneumatic vibrator; the circumferential gap between the left end of the shaft and the left end of the fixing body forms an exhaust hole.

The invention has the beneficial effects that: the frequency variation range is large, the adjustment is convenient, the structure is simple, the manufacturing cost is low, the adaptability is strong, the operation is comfortable, the operation is reliable, the maintenance is simple and convenient, the production efficiency is high, the vibration effect is good, the service life is long, the application range is wide, the weight is light, the design is novel, the structure is reasonable, and the safety and the reliability are realized.

Drawings

FIG. 1 is a schematic cross-sectional view of the structure of the present invention.

Fig. 2 is a schematic right view of fig. 1.

Fig. 3 is a schematic half-section of the structure of the roller 1 in fig. 1.

Figure 4 is a schematic half-section of the structure of the roller 2 of figure 1.

Fig. 5 is a schematic half-sectional view of the structure of the fixing body 3 in fig. 1.

Fig. 6 is a schematic sectional view of the structure of the support 4 in fig. 1.

Fig. 7 is a schematic half-sectional view of the structure of the air duct body 5 in fig. 1.

Fig. 8 is a partially enlarged schematic view of the air duct body 5 in fig. 7.

Fig. 9 is an expanded schematic view of fig. 8.

Detailed Description

The details and operation of the present invention will be described in detail with reference to the accompanying drawings, and it should be understood that the described embodiments are only one embodiment of the invention, and not all embodiments. Other embodiments, which can be derived by those skilled in the art from the embodiments given herein without any creative effort, shall fall within the protection scope of the present invention. A fixed body 3 is arranged in a support 4 of the pneumatic vibrator, an air channel body 5 is arranged in the fixed body 3, a shaft 1 is arranged in the air channel body 5, and a rolling sleeve 2 is arranged between the shaft 1 and the fixed body 3; the center of the shaft 1 is provided with a blind hole 1-1, the bottom of the blind hole 1-1 is provided with four equally-distributed radial holes 1-2, and the left end of the shaft 1 is provided with a groove 1-3 for accommodating the roller sleeve 2; the center of the air passage body 5 is provided with a through hole 5-1 for installing the shaft 1, the middle of the through hole 5-1 is provided with a circumferential groove 5-2, the circumferential groove 5-2 is internally provided with four equally-divided radial holes 5-4, and the left end of the air passage body 5 is processed with a large-pitch rectangular thread 5-3 to form an air passage 5-5; the inner diameter 2-1 and the outer diameter 2-2 of the roller sleeve 2 are designed according to vibration parameters of a pneumatic vibrator; the exhaust hole 6 is formed by the circumferential gap between the left end of the shaft 1 and the left end of the fixed body 3. The excircle of the shaft 1 and the inner hole of the air passage body 5 are in interference fit, and the interference magnitude is more than 0.06 mm. The shaft 1 and the roller sleeve 2 are made of carburizing steel, the wear resistance is good, and the surface hardness HRC is more than 58 degrees. The inner hole of the support 4 and the excircle of the fixed body 3 are in interference fit, and the interference magnitude is more than 0.05 mm. The air passage body 5 and the inner hole of the fixed body 3 are in interference fit with each other, and the interference magnitude is more than 0.06 mm. When the operation starts, the air compressor is started, compressed air enters from a blind hole 1-1 in the center of the shaft 1, enters through a radial hole 1-2 and a radial hole 5-4 of the air passage body 5, enters through a rectangular thread 5-3 and an air passage 5-5 at the left end, blows the roller sleeve 2 to rotate and rotate around the shaft 1 in a planetary way, generates high-frequency vibration, vibrates and compacts concrete, removes air holes in concrete mixture, improves the strength of the concrete structure, shortens the solidification time of the concrete structure, and exhausts air flow through an exhaust hole 6 between the left end of the shaft 1 and the left end of the fixing body 3. The invention has the beneficial effects that: the frequency variation range is large, the adjustment is convenient, the structure is simple, the manufacturing cost is low, the adaptability is strong, the operation is comfortable, the operation is reliable, the maintenance is simple and convenient, the production efficiency is high, the vibration effect is good, the service life is long, the application range is wide, the weight is light, the design is novel, the structure is reasonable, and the safety and the reliability are realized.

Claims

1. The utility model provides a simple structure's pneumatic external vibrator which characterized in that: a fixed body (3) is arranged in a support (4) of the pneumatic vibrator, an air channel body (5) is arranged in the fixed body (3), a shaft (1) is arranged in the air channel body (5), and a rolling sleeve (2) is arranged between the shaft (1) and the fixed body (3); a blind hole (1-1) is formed in the center of the shaft (1), four equally-distributed radial holes (1-2) are formed in the bottom of the blind hole (1-1), and a groove (1-3) for accommodating the roller sleeve (2) is formed in the left end of the shaft (1); a through hole (5-1) for installing the shaft (1) is formed in the center of the air passage body (5), a circumferential groove (5-2) is formed in the middle of the through hole (5-1), four equally-distributed radial holes (5-4) are formed in the circumferential groove (5-2), and a large-pitch rectangular thread (5-3) is machined at the left end of the air passage body (5) to form an air passage (5-4); the inner diameter (2-1) and the outer diameter (2-2) of the roller sleeve (2) are designed according to vibration parameters of a pneumatic vibrator; the circumferential gap between the left end of the shaft (1) and the left end of the fixed body (3) forms an exhaust hole (6).