Vibrating bar

Abstract

The invention relates to a vibrating bar which at least comprises a shell, a vibrating cavity is formed in the shell, a hard shaft is arranged in the vibrating cavity, a flexible shaft mounting cavity is formed in the hard shaft, a flexible shaft is arranged in the flexible shaft mounting cavity, one end of the flexible shaft extends to the outside of the flexible shaft mounting cavity to be connected with a power output part, and the other end of the flexible shaft extends to the outside of the flexible shaft mounting cavity to be connected with a power output part. The end, away from the power output part, of the flexible shaft is connected with the hard shaft, the portion, away from the flexible shaft installation cavity, of the hard shaft is provided with an impact part, and the end, provided with the flexible shaft installation cavity, of the hard shaft is connected with the shell through a bearing. The flexible shaft is arranged in the hard shaft, the power output part drives the flexible shaft to rotate, the flexible shaft drives the hard shaft to rotate in the hard shaft and then collides with the shell, and the vibration effect can be achieved with small power.

Description

Technical Field

[0001] The invention relates to the technical field of engineering equipment, in particular to a vibrating rod. Background Art

[0002] As a kind of engineering equipment, the vibrating rod can remove bubbles in the concrete in time through its vibration, so that the structural strength and bearing capacity of the concrete will be higher after solidification.

[0003] A low-noise insertion vibrator as disclosed in CN220580568U includes a tamping rod housing and a motor, and also includes a wire. A motor mounting cavity and a vibration cavity are provided in the tamping rod housing, and the motor mounting cavity and the vibration cavity are communicated along the length direction of the tamping rod housing. The motor is installed in the motor mounting cavity, and an eccentric shaft is installed in the vibration cavity. Moreover, one end of the eccentric shaft extends into the motor mounting cavity and is dynamically connected to the output shaft of the motor. One end of the wire extends from one end of the tamping rod housing into the motor mounting cavity and is electrically connected to the motor. The other end of the wire extends to the outside of the tamping rod housing. A soft wire tube is provided outside the wire shell, and one end of the soft wire tube is connected to the end of the tamping rod housing into which the wire is extended.

[0004] The motor of the above-mentioned low-noise insertion vibrator is connected to the end of the eccentric shaft. When the motor rotates, the eccentric shaft is driven to rotate eccentrically with the end of the eccentric shaft as the base point to produce a vibration effect. However, the eccentric shaft is a hard shaft, which has a large rigidity and a large weight. The motor needs to use a large power to drive the eccentric shaft to vibrate. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a vibration rod which can achieve a vibration effect with relatively low power.

[0006] In order to solve the above technical problems, the technical solutions provided by the present invention are as follows:

[0007] A vibrating rod comprises at least an outer shell, a vibration cavity is arranged in the outer shell, a hard shaft is arranged inside the vibration cavity, a soft shaft installation cavity is arranged inside the hard shaft, a soft shaft is arranged inside the soft shaft installation cavity, one end of the soft shaft extends to the outside of the soft shaft installation cavity and is connected to a power output part, one end of the soft shaft away from the power output part is connected to the hard shaft, a part of the hard shaft away from the soft shaft installation cavity is provided with an impact part, and the end of the hard shaft provided with the soft shaft installation cavity is connected to the outer shell through a bearing.

[0008] In a preferred embodiment, a certain gap is provided between the inner ring and the outer ring of the bearing.

[0009] In a preferred embodiment, two ends of the flexible shaft are respectively fixedly connected with a first connecting section and a second connecting section, and the first connecting section extends to the outside of the flexible shaft installation cavity to be connected to the power output part.

[0010] In a preferred embodiment, a connecting portion is provided on the hard shaft, and the connecting portion is provided on the bottom side wall of the soft shaft installation cavity. A groove is provided on the side of the second connecting section, and the connecting portion is inserted into the groove.

[0011] In a preferred embodiment, a connecting portion is provided on the hard shaft, the connecting portion is provided on the bottom side wall of the flexible shaft installation cavity, and the second connecting section is fixedly connected to the connecting portion.

[0012] In a preferred embodiment, the hard shaft is provided with a threaded hole on the side wall of the bottom end of the flexible shaft installation cavity, and the connecting portion is a screw, one end of the screw is threadedly connected to the threaded hole, and the other end extends into the flexible shaft installation cavity to be connected to the second connecting section.

[0013] In a preferred embodiment, the power output part includes a motor and a reducer, wherein the reducer is located between the motor and the housing, one end of the reducer housing is threadedly connected to the housing, and the other end of the reducer housing is threadedly connected to the motor.

[0014] In a preferred embodiment, a hoop is provided inside the shell at a position corresponding to the impact portion, and a gap is left between the impact portion and the hoop.

[0015] In a preferred embodiment, the impact portion is configured to be conical, and the inner surface of the hoop is configured to be a conical surface that matches the impact portion.

[0016] In a preferred embodiment, an eccentric notch is provided at one end of the hard shaft away from the soft shaft installation cavity.

[0017] Compared with the prior art, the vibrating rod of this embodiment has the following beneficial effects:

[0018] 1) The flexible shaft is arranged inside the hard shaft, which not only saves the installation space of the flexible shaft in the length direction of the vibrating rod, reduces the overall length of the vibrating rod, saves costs, but also reduces the overall weight of the hard shaft and reduces the working power when the power output part drives the hard shaft to rotate;

[0019] 2) When the power output unit rotates, it first drives the flexible shaft to rotate, and when the flexible shaft rotates, it drives the hard shaft to rotate through the connecting part. When the hard shaft rotates, it collides with the housing to produce a vibration effect. The power output unit indirectly drives the hard shaft to rotate by driving the flexible shaft to rotate, which can effectively reduce the working power of the power output unit;

[0020] 3) The flexible shaft is arranged inside the hard shaft, and the end of the flexible shaft away from the power output part is connected to the hard shaft. The connection point between the flexible shaft and the hard shaft is located on the shaft body of the hard shaft. The base point of rotation of the hard shaft is located on the shaft body of the hard shaft instead of the end of the hard shaft, which can effectively reduce the working power of the power output part to drive the hard shaft to rotate;

[0021] 4) By reducing the working power, the volume of the power output part can be reduced, and the power output part can be directly installed on the shell, avoiding the trouble of the existing vibrating rod needing to carry an additional large motor, saving labor handling costs on the one hand, and energy consumption on the other. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a schematic cross-sectional structural diagram of the vibrating rod of this embodiment;

[0023] Figure 2 Schematic diagram of the cross-sectional structure of the hard shaft of the vibrating rod of this embodiment;

[0024] Figure 3 It is a partial structural schematic diagram of the soft shaft installation cavity of the hard shaft of the vibrating rod in this embodiment;

[0025] Figure 4 It is a schematic diagram of the local structure of the impact part of the hard shaft of the vibrating rod in this embodiment;

[0026] Figure 5 It is a schematic diagram of the local structure of the eccentric notch portion of the hard shaft of the vibrating rod in this embodiment.

[0027] Explanation of the accompanying drawings: 1-housing, 2-motor, 3-hard shaft, 4-flexible shaft, 5-bearing, 6-hoop, 7-reducer, 11-vibration chamber, 31-flexible shaft installation chamber, 32-connecting part, 33-impact part, 34-eccentric notch, 35-threaded hole, 41-first connecting section, 42-second connecting section, 43-groove. DETAILED DESCRIPTION

[0028] The specific implementation of the present invention is further described below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the present invention, and is not used to limit the present invention.

[0029] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by the terms "upper", "lower", "inside", "outside", "left", "right", etc. are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred mechanism or element must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0030] like Figure 1As shown, the vibrating rod of this embodiment includes a shell 1 , a vibrating cavity 11 is arranged inside the shell 1 , and a hard shaft 3 is arranged inside the vibrating cavity 11 .

[0031] like Figure 2 As shown, a soft shaft installation cavity 31 is provided inside one end of the hard shaft 3, a threaded hole 35 is provided on the bottom side wall of the soft shaft installation cavity 31 of the hard shaft 3, an impact portion 33 is also provided at a portion of the hard shaft 3 away from the soft shaft installation cavity 31, and an eccentric notch 34 is provided at one end of the hard shaft 3 away from the soft shaft installation cavity 31.

[0032] like Figure 3 As shown, a flexible shaft 4 is arranged inside the flexible shaft installation cavity 31. One end of the flexible shaft 4 extends to the outside of the flexible shaft installation cavity 31 and is connected to the power output part, and one end of the flexible shaft 4 away from the power output part is connected to the hard shaft 3.

[0033] In this embodiment, if Figure 1 As shown, the power output unit includes a motor 2 and a reducer 7, and the reducer 7 is located between the motor 2 and the housing 1. One end of the housing of the reducer 7 is threadedly connected to the housing 1, and the other end of the housing of the reducer 7 is threadedly connected to the motor 2. In this way, the power output unit is connected to the housing 1 as a whole, avoiding the trouble of the existing vibrator needing to carry an additional large motor, saving labor handling costs on the one hand, and saving energy consumption on the other.

[0034] like Figure 3 As shown, one end of the hard shaft 4 provided with the flexible shaft installation cavity 31 is connected to the housing 1 through a bearing 5, and a certain gap is provided between the inner ring and the outer ring of the bearing 5. This makes it easier for the hard shaft 3 to shake irregularly when rotating, so that the vibration effect is better.

[0035] like Figure 3 As shown, the two ends of the flexible shaft 4 are respectively fixedly connected with a first connecting section 41 and a second connecting section 42, and the first connecting section 41 extends to the outside of the flexible shaft installation cavity 31 and is connected to the power output part. The first connecting section 41 and the second connecting section 42 can facilitate the installation and fixation of the flexible shaft, while reducing the wear caused by direct installation and impact of the flexible shaft.

[0036] like Figure 3 As shown, in this embodiment, the hard shaft 3 is provided with a connecting portion 32, and the connecting portion 32 is arranged on the bottom side wall of the flexible shaft installation cavity 31, and the side of the second connecting section 42 is provided with a groove 43, and the connecting portion 32 is inserted into the groove 43. The groove 43 can facilitate the positioning of the connecting portion 32 during assembly. In addition, when the power output unit drives the flexible shaft 3 to rotate, the groove 43 of the second connecting section 42 will be clamped by the connecting portion 32, thereby driving the hard shaft 3 to rotate.

[0037] In this embodiment, the connection part 32 is preferably a screw, one end of which is threadedly connected to the threaded hole 35, and the other end of which extends into the flexible shaft installation cavity 31 and is connected to the second connection section 42. The connection part 32 is preferably a screw for easy assembly, and of course a pin can also be selected, and the pin can be inserted from the hard shaft 3 into the flexible shaft installation cavity 31 and connected to the second connection section 42 to achieve the same technical effect.

[0038] Of course, the same technical effect can be achieved by providing a connecting portion 32 on the rigid shaft 3 and fixing the second connecting section 42 to the connecting portion 32 .

[0039] like Figure 4 As shown, the hard shaft 3 is provided with a striking portion 33 at a position away from the power output portion, and the inside of the housing 1 is provided with a hoop 6 at a position corresponding to the striking portion 33, with a gap being left between the striking portion 33 and the hoop 6. When the hard shaft 3 rotates, the striking portion 33 collides irregularly with the hoop 6, thereby causing the housing 1 to vibrate, thereby realizing the vibration function of the vibrating rod.

[0040] In this embodiment, the impact part 33 is set to be conical, and the inner surface of the hoop 6 is set to be a conical surface adapted to the impact part 33. Since the base point of rotation of the hard shaft 3 is on the left side of the impact part 33, the more the hard shaft 3 is to the right, the greater the amplitude of the shaking. The contact surface between the impact part 33 and the hoop 6 is set to be a conical surface, which can better match the shaking amplitude of the hard shaft 3 and more effectively achieve the vibration effect.

[0041] like Figure 5 As shown, the end of the hard shaft 3 away from the flexible shaft installation cavity 31 is provided with an eccentric notch 34, which can make the shaking effect of the hard shaft 3 greater and make the collision effect with the housing 1 better. Of course, an eccentric block can be added at the end of the hard shaft 3 away from the flexible shaft installation cavity 31, which can also achieve the same technical effect.

[0042] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, a variety of simple modifications can be made to the technical solution of the present invention, and these simple modifications all belong to the protection scope of the present invention.

Claims

1. A vibrating rod, comprising at least a housing (1), wherein a vibration cavity (11) is arranged inside the housing (1), and a hard shaft (3) is arranged inside the vibration cavity (11), characterized in that: A soft shaft installation cavity (31) is arranged inside the hard shaft (3), a soft shaft (4) is arranged inside the soft shaft installation cavity (31), one end of the soft shaft (4) extends to the outside of the soft shaft installation cavity (31) and is connected to the power output part, the end of the soft shaft (4) away from the power output part is connected to the hard shaft (3), the part of the hard shaft (3) away from the soft shaft installation cavity (31) is provided with an impact part (33), and the end of the hard shaft (4) provided with the soft shaft installation cavity (31) is connected to the housing (1) via a bearing (5).

2. The vibrating rod according to claim 1, characterized in that: A certain gap is provided between the inner ring and the outer ring of the bearing (5).

3. The vibrating rod according to claim 1 or 2, characterized in that: The two ends of the flexible shaft (4) are respectively fixedly connected with a first connecting section (41) and a second connecting section (42); the first connecting section (41) extends to the outside of the flexible shaft installation cavity (31) and is connected to the power output part.

4. The vibrating rod according to claim 3, characterized in that: The hard shaft (3) is provided with a connecting portion (32), and the connecting portion (32) is arranged on the bottom side wall of the flexible shaft installation cavity (31). The side edge of the second connecting section (42) is provided with a groove (43), and the connecting portion (32) is inserted into the groove (43).

5. The vibrating rod according to claim 3, characterized in that: The hard shaft (3) is provided with a connecting portion (32), the connecting portion (32) being arranged on the bottom side wall of the flexible shaft installation cavity (31), and the second connecting section (42) is fixedly connected to the connecting portion (32).

6. The vibrating rod according to claim 4 or 5, characterized in that: The hard shaft (3) is provided with a threaded hole (35) on the side wall of the bottom end of the flexible shaft installation cavity (31); the connecting portion (32) is a screw, one end of which is threadedly connected to the threaded hole (35) and the other end of which extends into the flexible shaft installation cavity (31) and is connected to the second connecting section (42).

7. The vibrating rod according to claim 6, characterized in that: The power output unit comprises a motor (2) and a reducer (7); the reducer (7) is located between the motor (2) and the housing (1); one end of the housing of the reducer (7) is threadedly connected to the housing (1); and the other end of the housing of the reducer (7) is threadedly connected to the motor (2).

8. The vibrating rod according to claim 1, characterized in that: A hoop (6) is arranged inside the housing (1) at a position corresponding to the impact portion (33), and a gap is left between the impact portion (33) and the hoop (6).

9. The vibrating rod according to claim 7, characterized in that: The impact portion (33) is configured to be conical, and the inner surface of the hoop (6) is configured to be a conical surface adapted to the impact portion (33).

10. The vibrating rod according to claim 1, characterized in that: An eccentric notch (34) is provided at one end of the hard shaft (3) away from the soft shaft installation cavity (31).

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