Pneumatic flat plate vibrator

Abstract

The utility model provides a pneumatic flat plate vibrator, which mainly relates to the field of concrete engineering and is suitable for plane concrete engineering. A pneumatic flat plate vibrator comprises a bottom plate, traction rings are arranged at the four corners of the bottom plate, a mounting frame is arranged on the bottom plate, a pneumatic motor is arranged on the mounting frame, an eccentric block is arranged on an output shaft of the pneumatic motor, a protective cover is detachably arranged outside the motor, and the protective cover is used for protecting the pneumatic motor and facilitating cleaning after construction. An air inlet and an air outlet are formed outside the protective cover. The utility model has the beneficial effects that the device is driven by compressed air, adapts to the working environment of an underground power source, and can effectively improve the construction quality of underground plane concrete engineering.

Description

Technical Field

[0001] The utility model mainly relates to the field of plane concrete engineering. In a working environment with gas such as methane, a pneumatic vibrator should be selected, specifically a pneumatic flat plate vibrator. Background Art

[0002] At present, the domestic coal mines are developing by leaps and bounds, and the application of rubber-tyred vehicles in coal mines has been very extensive, which has brought huge production efficiency and benefits to coal mines. As more and more concrete pavements are required to be laid by rubber-tyred vehicles in coal mines, the exposed pavement quality problems are also obvious. The quality problems of concrete pavements have seriously affected the production efficiency and benefits. At present, there is an urgent need for supporting equipment to improve the quality of concrete pavements.

[0003] According to the authoritative textbook "Concrete Engineering" (Edited by Wang Jianqun, Huazhong University of Science and Technology Press, ISBN 978-7-5609-6890-2), Chapter 3 Concrete Engineering Construction Machinery and Equipment describes: "If there is a gas working environment, a pneumatic vibrator should be used."

[0004] Due to the current underground gas production environment, it is not convenient to use electrically driven equipment. During the construction of underground concrete pavement, there is a lack of supporting and efficient vibration equipment to vibrate and compact the flat concrete to compact the pavement. This seriously affects the construction quality of the underground pavement and has become a problem that needs to be solved urgently. Utility Model Content

[0005] In order to solve the deficiencies of the prior art, the utility model provides a pneumatic flat plate vibrator, which is driven by compressed air, adapts to the power source underground, and can effectively improve the construction quality of flat concrete underground. This product fills the market gap.

[0006] In order to achieve the above purpose, the utility model is implemented through the following technical solutions:

[0007] A pneumatic plate vibrator comprises a base plate, traction rings are arranged at the four corners of the base plate, a mounting frame is arranged on the base plate, an air motor is arranged on the mounting frame, an eccentric block is arranged on the output shaft of the air motor, a protective cover is detachably arranged on the outside of the air motor, the protective cover is used to protect the air motor, and an air inlet and an air outlet are arranged on the protective cover.

[0008] Chamfers are arranged around the bottom plate.

[0009] A plurality of fastening seats are arranged on the top surface of the bottom plate, and fastening plates corresponding to the fastening seats are arranged on the bottom of the side surface of the protective cover, and the fastening plates are detachably connected to the fastening seats by bolts.

[0010] The bottom plate is a square bottom plate.

[0011] A filter is arranged on the air outlet.

[0012] The filter comprises a filter housing and a filter element. The filter housing can be detachably mounted on the air outlet, and the filter element is a steel mesh.

[0013] The pneumatic motor is a dual-output shaft motor, and eccentric blocks are installed on both output shafts of the pneumatic motor.

[0014] The eccentricity of the eccentric block is adjustable.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] The utility model adopts pneumatic drive and is suitable for working environments with gas such as gas. The double output shafts of the pneumatic motor drive the eccentric block to produce simple harmonic vibration, which solves the market gap of the lack of pneumatic plate vibrators in flat concrete projects under gas environments. The flat concrete projects vibrated with pneumatic plate vibrators ensure the construction quality and improve the construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Attached Figure 1 This is a schematic diagram of the three-dimensional viewing angle structure of the utility model;

[0018] Attached Figure 2 This is a schematic diagram of the structure of the utility model from a top view;

[0019] Attached Figure 3 It is a schematic diagram of the partial cross-sectional structure of the utility model from the main viewing angle.

[0020] The numbers shown in the accompanying drawings are: 1, base plate; 2, chamfer; 3, mounting bracket; 4, pneumatic motor; 5, eccentric block; 6, protective cover; 7, filter; 11, fastening seat; 21, traction ring; 61, air inlet; 62, air outlet; 63, fastening plate. DETAILED DESCRIPTION

[0021] The utility model is further described in conjunction with the accompanying drawings and specific embodiments. It should be understood that these embodiments are only used to illustrate the utility model and are not used to limit the scope of the utility model. In addition, it should be understood that after reading the content taught by the utility model, those skilled in the art can make various changes or modifications to the utility model, and these equivalent forms also fall within the scope defined by this application.

[0022] like Figure 1-3As shown, the pneumatic flat plate vibrator described in the utility model includes a base plate 1, and the base plate 1 is made of steel plate, and its bottom surface is flat and smooth, which serves as the contact surface for concrete vibration. A chamfer 2 is set at the edge of the base plate 1, and the setting of the chamfer 2 can reduce the cracking of the concrete surface. The reason why cracks often appear on the concrete surface is due to the uneven shrinkage and expansion of the concrete itself, and the chamfering treatment can reduce the pressure of the concrete at the corners, so that the appearance of cracks on the concrete surface is reduced. The chamfering treatment of concrete can not only reduce the appearance of cracks, but its smooth treatment can also improve the overall aesthetics of concrete buildings, making them more in line with the design requirements of modern buildings. Concrete components that have been chamfered will show better strength and durability during use. The chamfering treatment can effectively increase the service life of concrete and reduce its maintenance and repair costs.

[0023] The bottom plate 1 is a square bottom plate, which can adapt to the edges and corners of the concrete pavement, so as to perform more effective vibration and improve the quality of pavement construction.

[0024] Traction rings 21 are provided at the four corners of the limiting edge 2. The traction rings 21 are welded inside the limiting edge 2 using bent steel bars. The traction rings 21 are used for traction of the fixed traction belt. When in use, the vibrator is controlled to move forward or backward through the traction belt, and the direction is adjusted so that the plane concrete can be fully vibrated and compacted as a whole.

[0025] A mounting frame 3 is arranged on the base plate 1, and a pneumatic motor 4 is mounted on the mounting frame 3. An eccentric block 5 is mounted on the output shaft of the pneumatic motor 4. The pneumatic motor 4 drives the eccentric block 5 to rotate at a high speed. As the eccentric block 5 rotates, the base plate 1 vibrates at a high frequency to vibrate and compact the concrete pavement. During the vibration, the traction rope drives the base plate 1 to adjust its direction to completely vibrate the pavement.

[0026] A protective cover 6 is detachably provided on the top of the base plate 1, and the protective cover 6 is used to protect the pneumatic motor 4. An air inlet 61 and an air outlet 62 are provided on the protective cover 6. The air inlet 61 is connected to the air source device through a pipeline, and the air outlet 62 is connected to the air outlet nozzle of the pneumatic motor. A filter 7 is provided on the air outlet 62, and the filter 7 includes a filter housing and a filter element. The filter housing is detachably installed on the air outlet 62, and the filter element is PP cotton. The filter 7 can prevent dirt from entering the pneumatic motor 4 to cause blockage, and effectively protect the pneumatic motor 4.

[0027] Specifically, a plurality of fastening seats 11 are welded on the top surface of the bottom plate 1 , and fastening plates 63 corresponding to the fastening seats 11 are welded on the bottom of the side surface of the protective cover 6 , and the fastening plates 63 are detachably connected to the fastening seats 11 through bolts.

[0028] Specifically, the pneumatic motor 4 is a dual-output shaft motor, and the two output shafts at both ends of the pneumatic motor 4 are coaxial, and eccentric blocks 5 are installed on the two output shafts of the pneumatic motor 4. Through the drive of the dual output shafts, the two eccentric blocks 5 can be vibrated in coordination, achieving a better vibration effect and making the concrete pavement vibrating better.

[0029] Specifically, the eccentricity of the eccentric block 5 is adjustable. By adjusting the installation position of the eccentric block 5 and the output shaft, the angle between the two eccentric blocks 5 can be adjusted, thereby adjusting the oscillation frequency and oscillation intensity of the device to meet the concrete pavement oscillation under different working conditions.

[0030] When using this device to vibrate the concrete pavement, the construction work points are as follows:

[0031] 1. Ensure that the compressed air pipeline is firmly and reliably connected during use.

[0032] 2. The vibrator should be inspected and tested before operation. During the test run, it should not be operated on dry hard soil or hard objects to avoid the vibrator from vibrating and even being damaged.

[0033] 3. During operation, it is generally installed on the concrete surface to ensure quality.

[0034] 4. During operation, the inertial horizontal force generated by the eccentric block driven by the pneumatic motor moves automatically, and the operator only needs to control the direction of movement. However, it must be noted that the plate of the vibrator should be kept in contact with the concrete surface during operation.

[0035] 5. The plate of the plate vibrator contacts the concrete, so that the vibration wave is effectively transmitted to the concrete, which is vibrated to the surface until the slurry comes out, and then it can slowly move forward. The moving direction can automatically move forward or backward, and the moving speed is based on the speed that can ensure the vibration of the slurry.

[0036] 6. Do not place the vibrating vibrator on the solidified or initially solidified concrete to avoid vibration damage.

[0037] 7. When the thickness of the vibrated concrete does not exceed 20cm, one vibration is sufficient to meet the quality requirements.

Claims

1. A pneumatic plate vibrator, comprising a base plate (1), characterized in that: A traction ring (21) is arranged at each of the four corners of the base plate (1); a mounting frame (3) is arranged on the base plate (1); a pneumatic motor (4) is arranged on the mounting frame (3); an eccentric block (5) is arranged on the output shaft of the pneumatic motor (4); a protective cover (6) is detachably arranged on the outside of the pneumatic motor (4); the protective cover (6) is used to protect the pneumatic motor (4); and an air inlet (61) and an air outlet (62) are arranged on the protective cover (6).

2. A pneumatic plate vibrator according to claim 1, characterized in that: Chamfers (2) are arranged around the bottom plate (1).

3. A pneumatic plate vibrator according to claim 1, characterized in that: A plurality of fastening seats (11) are arranged on the top surface of the base plate (1), and fastening plates (63) corresponding to the fastening seats (11) are arranged on the bottom of the side surface of the protective cover (6), and the fastening plates (63) are detachably connected to the fastening seats (11) via bolts.

4. A pneumatic plate vibrator according to claim 1, characterized in that: The bottom plate (1) is a square bottom plate.

5. The pneumatic plate vibrator according to claim 1, characterized in that: A filter (7) is arranged on the air outlet (62).

6. A pneumatic plate vibrator according to claim 5, characterized in that: The filter (7) comprises a filter housing and a filter element; the filter housing is detachably mounted on the air outlet (62); and the filter element is a steel mesh.

7. A pneumatic plate vibrator according to any one of claims 1 to 6, characterized in that: The pneumatic motor (4) is a dual-output shaft motor, and eccentric blocks (5) are installed on both output shafts of the pneumatic motor (4).

8. A pneumatic plate vibrator according to claim 7, characterized in that: The eccentricity of the eccentric block (5) is adjustable.

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