CN2561873Y

CN2561873Y - Low-noise concrete vibrating cylinder

Info

Publication number: CN2561873Y
Application number: CN 02232601
Authority: CN
Inventors: 金可友
Original assignee: CHUANGMEI MOTOR Co Ltd TAIZHOU CITY
Current assignee: CHUANGMEI MOTOR Co Ltd TAIZHOU CITY
Priority date: 2002-04-17
Filing date: 2002-04-17
Publication date: 2003-07-23
Anticipated expiration: 2012-04-17

Abstract

A low-noise concrete vibrating rod is disclosed, which comprises a hollow vibrating body. An eccentric shaft is rotationally arranged inside the vibrating body, and a variable speed gear is arranged on one end of the vibrating body. The variable speed gear includes a power input shaft and a power output shaft, and the output shaft of the variable speed gear is connected with the eccentric shaft to drive the high-speed vibration of the eccentric shaft. The low-noise concrete vibrating rod can not only reduce noise produced by operation of the vibrating rod, but also greatly improve the vibrational force of the vibrating rod, effectively pounding the concretes.

Description

Low-noise concrete poker virbrator

Technical field:

The utility model relates to a kind of building operations apparatus, relates in particular to a kind of improved concrete vibration bar.

Background technology:

In the prior art, low-noise concrete poker virbrator generally all is to adopt the flexible pipe transfer torque, and because the maximum speed of flexible pipe transfer torque is subjected to the restriction of each side such as its material, thereby concrete vibration bar ubiquity vibration force of the prior art does not reach requirement, can't be with defectives such as concrete tampings, Chinese utility model patent CN2259984 as Patent Office of the People's Republic of China's notice of authorization on August 20th, 1997 discloses a kind of low-noise concrete poker virbrator, this concrete vibration bar is by excellent shell, be installed on the drive end bearing bracket at excellent shell two ends respectively, rear end cap and form by the eccentric shaft that bearing is installed in the excellent shell, though the noise that this concrete vibration bar has produced when having reduced vibration also exists aforesaid vibration force not enough, can't be with problems such as concrete tampings.

The utility model content:

The purpose of this utility model is to overcome the deficiency of above-mentioned prior art, provides a kind of and can not only reduce the vibrating head noise in when work, and can improve vibration force, the effective low-noise concrete poker virbrator of tamped concrete greatly.

The low-noise concrete poker virbrator that provides according to the utility model, comprise a hollow vibrating body, the inside of described vibrating body is rotatably mounted with an eccentric shaft, one end of described vibrating body is equipped with a speed change gear, described speed change gear comprises a power input shaft and an output shaft, and the output shaft of described speed change gear links to each other with described eccentric shaft and drives described eccentric shaft and rotates at a high speed.

The low-noise concrete poker virbrator that provides according to the utility model also has as above attached technical characterictic:

Described speed change gear comprises shell and is installed on the interior speed changer of this shell, at least one idle wheel that described speed changer comprises a gear ring, is positioned at this gear ring middle part one sun gear shaft and is meshed with this gear ring and sun gear shaft simultaneously; Described gear ring links to each other with described power input shaft, and described sun gear shaft links to each other with described eccentric shaft.

Described at least one idle wheel is rotatably installed on the support; Described support comprises an end plate and is installed on this end plate and axially at a distance of two tooth rests of certain distance, and each tooth rest is the disk that has through hole in the middle of, and its periphery is evenly equipped with at least one hole, in order to the axle journal at the two ends of supporting described idle wheel.

Described sun gear shaft and described power shaft are installed on the inside of described shell respectively by a bearing; A described end that is used to support the bearing of described power shaft is equipped with bearing cover, and a sealing ring is installed in the inside of this bearing cover; The other end of this bearing is provided with a support ring, also is provided with seal on the described support ring.

The two ends of described eccentric shaft are supported in respectively on a ball bearing and the thrust bearing, one end head exceeds described ball bearing and is screwed onto with described sun gear shaft, its another termination exceeds described thrust bearing, is formed with the plane that at least one pair of is parallel to each other on it.

The other end of described vibrating body is equipped with a drive end bearing bracket.

The low-noise concrete poker virbrator that provides according to the utility model has following advantage compared to existing technology: on the one hand, owing to be installed in the vibrating body eccentric shaft is rotatable, thus the noise that produces when having reduced vibrating head work greatly; On the other hand, owing to speed change gear has been installed, the speed of flexible pipe input torque can be adjusted by this speed change gear at an end of vibrating body, thereby the moment of torsion of output fair speed, drive eccentric shaft and rotate at a high speed, because square be directly proportional (F=ma, the a=A ω of vibration force and rotating speed ², ω=π n, F represents vibration force in the formula, and a represents acceleration, and m represents quality, and A represents amplitude, n represents rotating speed), thereby improving vibration force greatly, effectively tamped concrete, and this vibrating head overall structure is comparatively compact, meets various concrete construction requirements.

Description of drawings:

Fig. 1 is the general structure sectional view of the utility model low-noise concrete poker virbrator, for clarity sake, among the figure speed changer has partly been carried out revolved section;

Fig. 2 is the A-A sectional view of Fig. 1, there is shown the engagement of gear ring, idle wheel and sun gear shaft;

Fig. 3 is the elevation that is used to install the support of idle wheel shown in Figure 1, there is shown the composition structure of support;

Fig. 4 be the B of Fig. 3 to view, the distribution in hole on the support shown in the figure;

Fig. 5 is the C-C sectional view of Fig. 1, there is shown the cross sectional shape of a termination of eccentric shaft;

Fig. 6 is the D-D sectional view of Fig. 1, there is shown the cross sectional shape at eccentric shaft middle part.

The specific embodiment:

Referring to Fig. 1, as a kind of embodiment of the present utility model, low-noise concrete poker virbrator as shown in the figure, comprise a hollow vibrating body 1, the inside of described vibrating body 1 is rotatably mounted with an eccentric shaft 2, one end of described vibrating body 1 is equipped with a speed change gear 3, and described speed change gear 3 comprises a power input shaft 35 and an output shaft, and the output shaft of described speed change gear 3 links to each other with described eccentric shaft 2 and drives the rotation at a high speed of described eccentric shaft 2; The other end of described vibrating body 1 is equipped with a drive end bearing bracket 4, thereby this end of vibrating body 1 is sealed, and can prevent effectively that concrete and dust from entering the inside of vibrating body 1.

As shown in fig. 1, described speed change gear 3 comprises shell 31 and the speed changer that is installed in this shell 31, described speed changer comprises a gear ring 32, at least one idle wheel 34 that is positioned at this gear ring 32 middle parts, one sun gear shaft 33 and is meshed with this gear ring 32 and sun gear shaft 33 simultaneously, in the embodiment that the utility model provides, as Fig. 1, shown in 2, be provided with three idle wheels 34 altogether, three idle wheels 34 are uniformly distributed in the gear ring 32 and also are meshed with this gear ring 32 and sun gear shaft 33 simultaneously, described gear ring 32 links to each other with described power input shaft 35, and described power input shaft 35 links to each other with motor by flexible pipe; Described sun gear shaft 33 links to each other with described eccentric shaft 2 as the output shaft of this speed change gear 3.

In the foregoing description that provides, described three idle wheels 34 are rotatably installed on the support; As shown in Fig. 1,3, described support comprises an end plate 36 and is installed on this end plate 36 and axial two tooth rests 37,38 at a distance of certain distance, can adopt during installation many as shown in the figure step pin axle 39 be installed on two

tooth rests

37,38 on the end plate 36 and make the certain axial distance of maintenance between the

tooth rest

37,38, as shown in Figure 4, each

tooth rest

37,38 is a middle disk that has through hole, its periphery be evenly equipped with three holes 34 ', in order to the axle journal at the two ends of supporting three described idle wheels 34, thereby three idle wheels 34 are rotatably installed on this support.

As shown in fig. 1, described sun gear shaft 33 and described power shaft 35 respectively by a bearing 33 ', 35 ' be installed on the inside of described shell 31; Described bearing 35 ' an end bearing cover 41 is installed, a sealing ring 42 is installed in the inside of this bearing cover 41; Described bearing 35 ' the other end be provided with a support ring 43, also be provided with seal 44 on the described support ring 43, described sealing ring 42 and seal 44 can prevent the leakage of the lubrication oil in the shell 31.

Referring to Fig. 1, the two ends of described eccentric shaft 2 are supported in respectively on a ball bearing 21 and the thrust bearing 22, one end head exceeds described ball bearing 21 and is screwed onto with described sun gear shaft 33, its another termination exceeds described thrust bearing 22, as shown in Figure 5, be formed with at least one pair of plane that is parallel to each other 23 on this termination, when described sun gear shaft 33 is connected with described eccentric shaft 2, but this spanner etc. is clamped the plane 23 of this pair of parallel, prevents that eccentric shaft 2 and sun gear shaft 33 1 from running up.

In the foregoing description that provides, as shown in Figure 6, the cross sectional shape of described eccentric shaft 2 is oval, and this moment, the vibrating effect of vibrating body 1 was fine.

In use, motor drives described power input shaft 35 by flexible pipe and rotates, and power input shaft 35 drives circle 32 and rotates, by idle wheel 34 and the rotation at a high speed of the described eccentric shaft 2 of sun gear shaft 33 speedup rear drives, thereby obtain bigger vibration force, effectively with the concrete tamping.

The foregoing description is only for the usefulness that the utility model is described; and be not to be to restriction of the present utility model; the those of ordinary skill in relevant technologies field; under the situation that does not break away from spirit and scope of the present utility model; can also make various variations and modification; therefore all technical schemes that are equal to also should belong to category of the present utility model, and scope of patent protection of the present utility model should be limited by each claim.

Claims

1, a kind of low-noise concrete poker virbrator, comprise a hollow vibrating body (1), the inside of described vibrating body (1) is rotatably mounted with an eccentric shaft (2), it is characterized in that: an end of described vibrating body (1) is equipped with a speed change gear (3), described speed change gear (3) comprises a power input shaft and an output shaft, and the output shaft of described speed change gear (3) links to each other with described eccentric shaft (2) and drives described eccentric shaft (2) rotation at a high speed.

2, low-noise concrete poker virbrator according to claim 1, it is characterized in that: described speed change gear (3) comprises shell (31) and is installed on the interior speed changer of this shell (31), at least one idle wheel (34) that described speed changer comprises a gear ring (32), is positioned at this gear ring (32) middle part one sun gear shaft (33) and is meshed with this gear ring (32) and sun gear shaft (33) simultaneously; Described gear ring (32) links to each other with described power input shaft, and described sun gear shaft (33) links to each other with described eccentric shaft (2).

3, low-noise concrete poker virbrator according to claim 2 is characterized in that: described at least one idle wheel (34) is rotatably installed on the support; Described support comprises an end plate (36) and is installed on last and axial two tooth rests (37,38) at a distance of certain distance of this end plate (36), each tooth rest (37,38) is a middle disk that has through hole, its periphery is evenly equipped with at least one hole, in order to the axle journal at the two ends of supporting described idle wheel (34).

4, low-noise concrete poker virbrator according to claim 2 is characterized in that: described sun gear shaft (33) and described power shaft (35) are installed on the inside of described shell (31) respectively by a bearing (33 ', 35 '); One end of described bearing (35 ') is equipped with bearing cover (41), and a sealing ring (42) is installed in the inside of this bearing cover (41); The other end of described bearing (35 ') is provided with a support ring (43), also is provided with seal (44) on the described support ring (43).

5, low-noise concrete poker virbrator according to claim 1, it is characterized in that: the two ends of described eccentric shaft (2) are supported in respectively on a ball bearing (21) and the thrust bearing (22), one end head exceeds described ball bearing (21) and is screwed onto with described sun gear shaft (33), its another termination exceeds described thrust bearing (22), is formed with at least one pair of plane that is parallel to each other (23) on it.

6, low-noise concrete poker virbrator according to claim 1 is characterized in that: the other end of described vibrating body (1) is equipped with a drive end bearing bracket (4).