Pneumatic vibrator additionally provided with exciting force adjusting device

Abstract

The utility model discloses a pneumatic vibrator additionally provided with an exciting force adjusting device, and belongs to the technical field of engineering machinery. According to the technical scheme, the pneumatic vibrator is composed of an inner rotor, an outer rotor, a shaft, a steel ball, an air pipe quick connector, an air inlet end cover, a machine shell, fan blades, an air outlet end cover and an exciting force adjusting device, a plurality of discharging holes are formed between an axial groove of the shaft and a blind hole, and a round hole is formed in the opposite portion of the axial groove. The air pipe quick joint is in threaded connection with the shaft at the left end of the shaft hole; the inner peripheries of the shaft holes of the air inlet end cover and the air outlet end cover are respectively provided with a notch opposite to the round hole of the shaft, and the round hole of the shaft is respectively provided with a steel ball opposite to the air inlet end cover and the air outlet end cover; a screw hole is formed in the center of the shaft air outlet end, a gap is reserved between the end face of the shaft air outlet end and the outer end face of the air outlet end cover, and a screw hole is machined in the outer end of an air outlet of the air outlet end cover and provided with an exciting force adjusting device. The vibrating device has the beneficial effects of high production efficiency, good vibrating effect, novel design, reasonable structure, safety and reliability.

Description

TECHNICAL FIELD

[0001] The pneumatic vibrator with the exciting force adjusting device belongs to the technical field of engineering machinery. BACKGROUND

[0002] With the continuous and rapid development of China's national economy, the demand for pneumatic vibrators in various industries is increasing, especially in the fields of water conservancy and hydropower, underground mining, and concrete prefabricated components. Pneumatic vibrators are divided into pneumatic plug-in vibrators and pneumatic external vibrators, among which pneumatic external vibrators are more widely used. Pneumatic external vibrators use compressed air as a power source to remove air holes in concrete mixtures through vibration compaction, improve the strength of concrete structures, and shorten the setting time, especially suitable for working conditions with explosion-proof requirements. Our company is a professional enterprise specializing in the production of vibrating machinery, developing and producing various series of vibrating machinery such as electric, motorized, and pneumatic. In the field of pneumatic external vibrators, we first developed a pneumatic external vibrator that obtained a national patent, patent number 200920088382.2; later we improved it by adding a leak-proof structure, also obtaining a national patent, patent number 201920122945.9. Since then, we have improved the leak-proof structure to obtain a national patent for "a pneumatic vibrator with an improved leak-proof mechanism", patent number 202120594443.3; and improved the air inlet structure to obtain a national patent for "a pneumatic external vibrator with an improved air inlet structure", patent number 202321059088.5. Technical innovation is endless, and in recent years we have found that the pneumatic vibrator has the drawbacks of being unable to adjust the exciting force according to the needs of the site working conditions, and urgent need for in-depth research and hard work to solve this problem. Therefore, we have developed a pneumatic vibrator that can conveniently adjust the exciting force. SUMMARY

[0003] The purpose of the present utility model is to develop a pneumatic vibrator that can conveniently adjust the exciting force to meet the urgent needs of the water conservancy and hydropower, underground mining, and concrete prefabricated component fields for pneumatic vibrators.

[0004] The technical solution of the present utility model is: a pneumatic vibrator composed of an inner rotor, an outer rotor, a shaft, a steel ball, a gas pipe quick connector, an air inlet end cover, a machine shell, a fan blade, an air outlet end cover, and an exciting force adjusting device. A plurality of holes are arranged between the axial groove of the shaft and the blind hole, and a circular hole is arranged at the opposite part of the axial groove. The gas pipe quick connector is connected to the shaft at the left end of the shaft hole by threads. The inner circumferential surface of the shaft hole of the air inlet end cover and the air outlet end cover is arranged with a notch at the opposite part of the circular hole of the shaft, and the circular hole of the shaft is arranged with a steel ball at the opposite part of the air inlet end cover and the air outlet end cover. A screw hole is arranged at the center of the air outlet end of the shaft, and the end surface of the air outlet end cover has a gap with the outer end surface of the air outlet end cover. A screw hole is machined on the outer end of the air outlet hole of the air outlet end cover, and the exciting force adjusting device is installed.

[0005] The utility model discloses the beneficial effect is: solved the old difficult problem of not being able to adjust vibrator exciting force size in the use process, greatly improved the vibration compaction effect, enhanced the strength of concrete structure, and the adjustment is convenient, and the structure is simple, and the adaptability is strong, and the operation is comfortable, and the operation is reliable, and the maintenance is simple, and the production efficiency is high, and the vibration effect is good, and the service life is long, and the application range is wide, and the design is novel, and the structure is reasonable, and safe and reliable. BRIEF DESCRIPTION OF DRAWINGS

[0006] Figure 1 It is the structure sectional view schematic drawing of the utility model.

[0007] Figure 2 It is Figure 1 The structure schematic drawing of the air outlet end cover 11 in.

[0008] Figure 3 It is Figure 2 The A-A section schematic drawing of. DETAILED DESCRIPTION

[0009] The details and working process of the present application are described in detail in combination with the drawings. Obviously, the described embodiments are only one embodiment of the present application, but not all embodiments. Based on the embodiments in the present application, other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the present application. A pneumatic vibrator composed of an inner rotor 1, an outer rotor 2, a shaft 5, a steel ball 6, an air pipe quick connector 7, an air inlet end cover 8, a machine shell 9, a fan blade 10, an air outlet end cover 11 and a vibration force adjusting device 12, a plurality of row holes are arranged between the axial groove of the shaft 5 and the blind hole, the opposite parts of the axial groove are provided with round holes, the air pipe quick connector 7 is threadedly connected with the shaft hole left end of the shaft 5; the inner circumferential of the shaft hole of the air inlet end cover 8 and the air outlet end cover 11 and the opposite parts of the round hole of the shaft 5 are respectively provided with notches, the round hole of the shaft 5 and the opposite parts of the air inlet end cover 8 and the air outlet end cover 11 are respectively provided with the steel ball 6; the center of the air outlet end of the shaft 5 is provided with a screw hole, the end face of the shaft 5 and the outer end face of the air outlet end cover 11 leave a gap, the outer end of the air outlet hole of the air outlet end cover 11 is processed into a screw hole, and the vibration force adjusting device 12 is installed. In addition, the air inlet end cover 8 and the air outlet end cover 11 are fastened on the machine shell 9 by bolts, gaskets 3, nuts 4 and bolts. In working, the air pipe of the air source is inserted into the air pipe quick connector 7, the sealing ring in the air pipe quick connector 7 has a sealing effect, the locking fin has a locking effect, the air pipe quick connector 7 is quickly locked and sealed reliably with the pneumatic external vibrator. Compressed air enters the blind hole of the shaft 5 from the air pipe quick connector 7, passes through the row holes and the fan blade 10, blows the inner rotor 1, and then blows the eccentric outer rotor 2 around the inner rotor 1 through the air inlet pit on the air inlet end cover 8, to generate vibration, compact the concrete, remove the air holes in the concrete mixture, improve the strength of the concrete structure, shorten the solidification time, and discharge the airflow through the air outlet pit on the air outlet end cover 11. Since the gap is left between the left end face of the shaft 5 and the outer end face of the air outlet end cover 11, the shaft 5 can be effectively tensioned, and the shaft 5 is prevented from producing axial movement to cause the steel ball 6 to wear, thereby overcoming the looseness of the steel ball 6 in the round hole of the shaft 5 and the notches of the air outlet end cover 11 and the air inlet end cover 8, effectively improving the sealing effect of the pneumatic vibrator. The vibration force adjusting device 12 is composed of a plug installed on the air outlet hole of the air outlet end cover 11, the air outlet hole has a plurality of plugs, the number of installed plugs is negatively related to the amount of air outlet and the vibration force of the vibrator, and the more the number of installed plugs, the less the amount of air outlet and the smaller the vibration force of the vibrator; on the contrary, the less the number of installed plugs, the more the amount of air outlet and the larger the vibration force of the vibrator. We show the number of installed plugs and the vibration force value of the vibrator in the product manual, and the user of the pneumatic vibrator can conveniently select according to the actual needs of the construction site. Compared with the previous vibration force of the vibrator, the vibration force of the vibrator can be adjusted to significantly improve the vibration compaction effect of the concrete, shorten the solidification time, and improve the strength of the concrete structure.The utility model discloses beneficial effect is: solved the old difficult problem of not being able to adjust vibrator exciting force size in the use process, greatly improved the vibration compaction effect, enhanced the strength of concrete structure, and the adjustment is convenient, and the structure is simple, and the adaptability is strong, and the operation is comfortable, and the operation is reliable, and the maintenance is simple, and the production efficiency is high, and the vibration effect is good, and the service life is long, and the application range is wide, and the design is novel, and the structure is reasonable, and safe and reliable.

Claims

1. A pneumatic vibrator equipped with an exciting force adjustment device, characterized in that: A pneumatic vibrator comprising an inner rotor (1), an outer rotor (2), a shaft (5), a steel ball (6), an air pipe quick connector (7), an air inlet end cover (8), a housing (9), a fan blade (10), an air outlet end cover (11), and an exciting force regulating device (12); a plurality of rows of holes are provided between the axial groove and the blind hole of the shaft (5); a circular hole is provided at a position opposite to the axial groove; the air pipe quick connector (7) and the shaft (5) are connected by a thread at the left end of the shaft hole; Notches are provided at the inner circumferences of the shaft holes of the end cover (8) and the outlet end cover (11) and at the positions corresponding to the circular hole of the shaft (5), and steel balls (6) are provided at the positions corresponding to the circular hole of the shaft (5) and the inlet end cover (8) and the outlet end cover (11). A screw hole is provided at the center of the outlet end of the shaft (5), and a gap is left between the end face thereof and the outer end face of the outlet end cover (11). A screw hole is processed at the outer end of the outlet hole of the outlet end cover (11) and an exciting force regulating device (12) is installed.

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