Amplitude-adjustable vibrator

Abstract

The utility model discloses an amplitude-adjustable vibrator, which comprises a main body module, the main body module comprises a motor, a fixing frame fixed to the bottom end of the motor, first rotating shafts symmetrically arranged on the two sides of the motor, first eccentric wheels fixed to the first rotating shafts, shells fixed to the two sides of the motor, bearings installed on the inner side faces of the shells, and second rotating shafts fixed to inner rings of the bearings. The motor is used for driving the eccentric wheel to rotate, vibration is generated through rotation of the eccentric wheel, the fixing frame is used for fixing the motor to equipment, the first rotating shaft is used for outputting power, the first eccentric wheel is fixed to the first rotating shaft, and the locking piece is arranged in an inner cavity of the second rotating shaft and stretches out of the second rotating shaft. The first eccentric wheel can be driven to rotate when the first rotating shaft rotates, then vibration is generated, and the vibrator with the adjustable amplitude has the advantages of being simple in amplitude adjustment and high in practicability.

Description

Technical Field

[0001] The utility model relates to the technical field of vibrators, in particular to a vibrator with adjustable amplitude. Background Art

[0002] The working part of the vibrator is a rod-shaped hollow cylinder with an eccentric vibrator inside. It rotates at high speed driven by the motor to produce high-frequency and slight vibrations. The vibration frequency can reach 12,000 to 15,000 times / min. It has good vibration effect, simple structure and long service life. It is suitable for vibrating beams, columns, walls and other components and large-volume concrete.

[0003] The existing vibrators have the following main drawbacks during use: the amplitude adjustment of the vibrator is relatively troublesome, and the outer shell needs to be disassembled and the eccentric wheel needs to be disassembled with a wrench, which is time-consuming and laborious. Therefore, there is room for improvement. Utility Model Content

[0004] The utility model aims to solve one of the technical problems existing in the prior art or related technology.

[0005] To this end, the technical solution adopted by the utility model is: a vibrator with adjustable amplitude, comprising: a main body module, the main body module comprising a motor, a fixing frame fixed to the bottom end of the motor, a first rotating shaft symmetrically arranged on both sides of the motor, a first eccentric wheel fixed on the first rotating shaft, a shell fixed on both sides of the motor, a bearing installed on the inner side of the shell, a second rotating shaft fixed on the inner ring of the bearing, a second eccentric wheel fixed on the second rotating shaft, and a locking member arranged in the inner cavity of the second rotating shaft and extending out of the second rotating shaft.

[0006] The locking member includes a spline shaft movably arranged in the inner cavity of the second rotating shaft and extending into the first rotating shaft, a pull rod with one end fixed to the end of the spline shaft and the other end extending out of the second rotating shaft, and a spring connecting the end of the spline shaft and the inner wall of the second rotating shaft. A first arc plate is fixed on the outer surface of the shell, and a second arc plate is fixed to one side of the pull rod through a support rod.

[0007] In a preferred example, the utility model can be further configured as follows: the ends of the first rotating shaft and the second rotating shaft are tightly together, the end of the first rotating shaft is provided with a first spline groove, and the end of the second rotating shaft is provided with a second spline groove.

[0008] In a preferred example, the utility model can be further configured as follows: the spline shaft is movably arranged in the second spline groove, and the end portion extends into the first spline groove.

[0009] In a preferred example, the present invention can be further configured as follows: two ends of the first arc-shaped plate are flush with two ends of the first eccentric wheel.

[0010] In a preferred example, the present invention can be further configured as follows: two ends of the second arc-shaped plate are flush with two ends of the second eccentric wheel.

[0011] By adopting the above technical solution, the beneficial effects achieved by the utility model are:

[0012] 1. In the utility model, a first eccentric wheel is fixed on the first rotating shaft of the motor, and a bearing is installed on the housing at the same time. The inner ring of the bearing fixes the second rotating shaft, and the end of the second rotating shaft is tightly attached to the end of the first rotating shaft. The second eccentric wheel is fixed on the second rotating shaft, and a locking member extending from the second rotating shaft is arranged in the second rotating shaft for locking the first rotating shaft and the second rotating shaft to ensure the synchronization of the rotation of the two. When the amplitude of the vibrator needs to be adjusted, the locking member only needs to be pulled outward. At this time, the locking contact between the first rotating shaft and the second rotating shaft is formed. At this time, the locking member is rotated to drive the second rotating shaft to rotate. The rotation of the second rotating shaft drives the second eccentric wheel to rotate. The amplitude of the vibrator can be adjusted by adjusting the angle between the first eccentric wheel and the second eccentric wheel. The larger the angle, the larger the amplitude, and the smaller the angle, the smaller the amplitude. After the adjustment is completed, the locking member is released. At this time, the locking member is reset, and the first rotating shaft and the second rotating shaft are locked to complete the adjustment of the amplitude of the vibrator. The adjustment is convenient, and there is no need to disassemble the housing, which increases the convenience of using the vibrator.

[0013] 2. In the utility model, a first arc plate is fixed on one side of the shell, and two ends of the first arc plate are flush with two ends of the first eccentric wheel, and a second arc plate is installed on the locking member, and two ends of the second arc plate are flush with two ends of the second eccentric wheel. When the locking member rotates, the second arc plate is driven to rotate, and the user can observe the position of the second eccentric wheel and the first eccentric wheel, which further increases the convenience of adjusting the amplitude. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 It is a cross-sectional schematic diagram of the utility model;

[0016] Figure 3 It is an exploded schematic diagram of the utility model;

[0017] Figure 4 It is a partial structural schematic diagram of the utility model.

[0018] Reference numerals:

[0019] 100. Main body module; 110. Motor; 120. Fixed frame; 130. First rotating shaft; 131. First spline groove; 140. First eccentric wheel; 150. Housing; 151. First arc plate; 160. Bearing; 170. Second rotating shaft; 171. Second spline groove; 180. Second eccentric wheel; 190. Locking piece; 191. Spline shaft; 192. Pull rod; 1921. Second arc plate; 193. Spring. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail below in combination with specific implementation methods and with reference to the accompanying drawings. It should be noted that the embodiments of the utility model and the features in the embodiments can be combined with each other without conflict.

[0021] Some embodiments of the present invention are described below in conjunction with the accompanying drawings. Embodiment 1

[0022] Combination Figure 1-4 As shown, this embodiment provides a vibrator with adjustable amplitude, including: a main body module 100.

[0023] Among them, the main body module 100 includes a motor 110, a fixing frame 120 fixed at the bottom end of the motor 110, a first rotating shaft 130 symmetrically arranged on both sides of the motor 110, a first eccentric wheel 140 fixed on the first rotating shaft 130, a shell 150 fixed on both sides of the motor 110, a bearing 160 installed on the inner side of the shell 150, a second rotating shaft 170 fixed on the inner ring of the bearing 160, a second eccentric wheel 180 fixed on the second rotating shaft 170, and a locking member 190 arranged in the inner cavity of the second rotating shaft 170 and extending out of the second rotating shaft 170.

[0024] The motor 110 is used to drive the eccentric wheel to rotate, and vibration is generated by the rotation of the eccentric wheel. The fixing frame 120 is used to fix the motor 110 on the equipment. The first rotating shaft 130 is used to output power. The first eccentric wheel 140 is fixed on the first rotating shaft 130, so that when the first rotating shaft 130 rotates, it can drive the first eccentric wheel 140 to rotate, thereby generating vibration.

[0025] The end of the housing 150 is fixed on the motor 110 to protect the first eccentric wheel 140 and the second eccentric wheel 180. The outer ring of the bearing 160 is fixed on the housing 150 to install the second rotating shaft 170 to ensure the stability of the second rotating shaft 170 when rotating.

[0026] The ends of the first rotating shaft 130 and the second rotating shaft 170 are tightly together, a first spline groove 131 is opened at the end of the first rotating shaft 130, and a second spline groove 171 is opened at the end of the second rotating shaft 170, which is used by the locking member 190 to lock the first rotating shaft 130 and the second rotating shaft 170 together.

[0027] The locking member 190 includes a spline shaft 191 movably arranged in the inner cavity of the second rotating shaft 170 and extending into the first rotating shaft 130, a pull rod 192 with one end fixed to the end of the spline shaft 191 and the other end extending out of the second rotating shaft 170, and a spring 193 connecting the end of the spline shaft 191 and the inner wall of the second rotating shaft 170. The spline shaft 191 is movably arranged in the second spline groove 171, and the end thereof extends into the first spline groove 131, so that when the first rotating shaft 130 rotates, it can drive the second rotating shaft 170 to rotate synchronously. The pull rod 192 is used to The user can pull the spline shaft 191 to move it. When the spline shaft 191 is retracted into the second rotating shaft 170 through the pull rod 192, the lock between the first rotating shaft 130 and the second rotating shaft 170 is released. At this time, the position of the second eccentric wheel 180 can be adjusted. One end of the spring 193 is fixed to the end of the spline shaft 191, and the other end is fixed to the inner wall of the second spline groove 171, which is used to ensure that the spline shaft 191 is always embedded in the first spline groove 131, thereby ensuring the stability of the lock between the first rotating shaft 130 and the second rotating shaft 170.

[0028] In addition, a first arc plate 151 is fixed on the outer surface of the shell 150, and both ends of the first arc plate 151 are flush with both ends of the first eccentric wheel 140. A second arc plate 1921 is fixed on one side of the pull rod 192 through a support rod, and both ends of the second arc plate 1921 are flush with both ends of the second eccentric wheel 180, so that the user can accurately know the positions of the first eccentric wheel 140 and the second eccentric wheel 180 during adjustment, thereby improving the convenience of adjustment.

[0029] The working principle and use process of the utility model are as follows: when in use, when it is necessary to adjust the amplitude of the vibrator, the pull rod 192 is pulled outward, and the movement of the pull rod 192 drives the spline shaft 191 to move, so that the spline shaft 191 is separated from the first spline friction, and the lock between the first rotating shaft 130 and the second rotating shaft 170 is released. At this time, the pull rod 192 is rotated to drive the spline shaft 191 to rotate, and the rotation of the spline shaft 191 drives the second rotating shaft 170 to rotate, and the rotation of the second rotating shaft 170 drives the second eccentric wheel 180 to rotate, and the angle between the first eccentric wheel 140 and the second eccentric wheel 180 is adjusted. The larger the angle, the larger the amplitude, and the smaller the angle The smaller the angle, the smaller the amplitude. During the adjustment, the pull rod 192 rotates to drive the second arc plate 1921 to rotate. By observing the position of the second arc plate 1921 and the first arc plate 151, the angle between the first eccentric wheel 140 and the second eccentric wheel 180 can be quickly known. After the adjustment is completed, the pull rod 192 is released, and under the action of the spring 193, the spline shaft 191 is driven to extend out of the second rotating shaft 170 and embed into the first spline groove 131 on the first rotating shaft 130, so as to lock the first rotating shaft 130 and the second rotating shaft 170, so that when the first rotating shaft 130 rotates, it can synchronously drive the second rotating shaft 170 to rotate.

[0030] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A vibrator with adjustable amplitude, comprising: The main body module (100) is characterized in that the main body module (100) comprises a motor (110), a fixing frame (120) fixed to the bottom end of the motor (110), a first rotating shaft (130) symmetrically arranged on both sides of the motor (110), a first eccentric wheel (140) fixed on the first rotating shaft (130), a housing (150) fixed on both sides of the motor (110), a bearing (160) mounted on the inner side of the housing (150), a second rotating shaft (170) fixed on the inner ring of the bearing (160), a second eccentric wheel (180) fixed on the second rotating shaft (170), and a locking member (190) arranged in the inner cavity of the second rotating shaft (170) and extending out of the second rotating shaft (170); The locking member (190) comprises a spline shaft (191) movably arranged in the inner cavity of the second rotating shaft (170) and extending into the first rotating shaft (130), a pull rod (192) with one end fixed to the end of the spline shaft (191) and the other end extending out of the second rotating shaft (170), and a spring (193) connecting the end of the spline shaft (191) and the inner wall of the second rotating shaft (170), a first arc plate (151) is fixed on the outer surface of the shell (150), and a second arc plate (1921) is fixed to one side of the pull rod (192) via a support rod.

2. A vibrator with adjustable amplitude according to claim 1, characterized in that: The ends of the first rotating shaft (130) and the second rotating shaft (170) are tightly attached together; the end of the first rotating shaft (130) is provided with a first spline groove (131), and the end of the second rotating shaft (170) is provided with a second spline groove (171).

3. A vibrator with adjustable amplitude according to claim 2, characterized in that: The spline shaft (191) is movably disposed in the second spline groove (171), and an end portion extends into the first spline groove (131).

4. The vibrator with adjustable amplitude according to claim 1, characterized in that: Two ends of the first arc-shaped plate (151) are flush with two ends of the first eccentric wheel (140).

5. The vibrator with adjustable amplitude according to claim 1, characterized in that: Two ends of the second arc-shaped plate (1921) are flush with two ends of the second eccentric wheel (180).

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