Multi-stage oscillation starting arm suitable for different pipe diameters

Abstract

The utility model discloses a multistage oscillation arm suitable for different pipe diameters, which comprises a curved oscillation arm lower section and a curved oscillation arm upper section, one end of the oscillation arm lower section is provided with a first connecting plate, one end of the oscillation arm upper section is provided with a second connecting plate, and the first connecting plate is detachably connected with the second connecting plate; a plurality of first mounting holes are formed in the lower section of the vibration starting arm and the upper section of the vibration starting arm, and the first mounting holes are used for mounting vibration beating wheels; and a second mounting hole is further formed in one end, far away from the first connecting plate, of the lower section of the oscillation starting arm. According to the utility model, the plurality of first mounting holes are formed in the vibration starting arm, so that the vibration wheels can be mounted at different positions according to different pipe diameters, the vibration work at a plurality of positions is realized, and the vibration range and the applicability are improved. Meanwhile, the first connecting plate is detachably connected with the second connecting plate, so that the upper sections of the oscillation starting arms with different sizes can be replaced for adjustment, and the applicability is further improved.

Description

Technical Field

[0001] The utility model relates to the field of mechanical tooling, in particular to a multi-stage vibration arm suitable for pipes with different diameters. Background Art

[0002] As a high-performance piping material, ductile iron pipes play an important role in water supply, drainage, fire protection and other fields.

[0003] During the production process of ductile iron pipes, the internal anti-corrosion layer needs to be centrifugally lined with cement mortar inside the pipe. In order to ensure that the aggregate and cement slurry of the cement mortar are evenly distributed, a vibration device is usually equipped on the centrifugal equipment to ensure the quality of the internal lining through the action of the vibration device.

[0004] The existing hot die belt coating machine's rapping device is short and has a fixed rapping position. This means that when producing large-diameter pipes, the rapping device is located at the bottom of the ductile iron pipe, resulting in poor rapping effect. At the same time, the overall structure of the rapping device needs to be frequently replaced when rapping pipes of different diameters, resulting in poor applicability and increased manual workload. Summary of the Invention

[0005] The purpose of the utility model is to address the problems existing in the prior art and provide a multi-stage vibration arm suitable for different pipe diameters. The vibration arm of the utility model effectively increases the vibration range, can be applied to the vibration work of ductile iron pipes of different diameters, and improves the effect of internal lining of the pipeline. At the same time, the multi-stage vibration arm is easy to replace different sizes, avoids the replacement of the overall structure, reduces the manual workload, and improves work efficiency.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] A multi-stage vibrating arm suitable for pipes of different diameters includes a lower section of the vibrating arm and an upper section of the vibrating arm, a first connecting plate is provided at one end of the lower section of the vibrating arm, and a second connecting plate is provided at one end of the upper section of the vibrating arm, and the first connecting plate and the second connecting plate are detachably connected; both the lower section of the vibrating arm and the upper section of the vibrating arm are provided with a first mounting hole, and the first mounting hole is used to install a rapping wheel; a second mounting hole is also provided at the end of the lower section of the vibrating arm away from the first connecting plate.

[0008] In the above technical solution, when the ductile iron pipe is subjected to centrifugal lining, the multi-stage vibrating arm is located on one side of the ductile iron pipe. By providing a plurality of the first mounting holes on the multi-stage vibrating arm, the vibrating wheel can be installed at different positions according to the different pipe diameters, thereby achieving vibrating work in multiple positions, being applicable to vibrating work of different pipe diameters, improving the vibrating range and applicability, and solving the problem of fixed vibrating position of the existing vibrating device. At the same time, when the position of the vibrating wheel needs to be adjusted according to different pipe types, the first connecting plate and the second connecting plate are detachably connected, so that the upper section of the vibrating arm of different sizes can be replaced for adjustment, further improving applicability, avoiding the problem of replacing the vibrating device as a whole, reducing manual workload, and improving work efficiency.

[0009] The multi-stage vibrating arm of the utility model is connected to the fixed shaft provided on the base of the centrifugal lining device through the second mounting hole, so that the multi-stage vibrating arm of the utility model can rotate around the fixed shaft. When the ductile iron pipe is hoisted onto the device for centrifugal lining, the multi-stage vibrating arm is rotated to provide hoisting space for the ductile iron pipe.

[0010] Furthermore, the first connecting plate is provided with a side plate, which limits the movement of the second connecting plate, thereby enhancing the connection stability between the first connecting plate and the second connecting plate.

[0011] Furthermore, an airbag pressing plate is provided on the lower section of the vibration arm. The airbag pressing plate is connected to the airbag, so that the vibration wheel on the vibration arm of the utility model is pressed against the pipeline after the airbag is inflated.

[0012] Furthermore, the lower section of the oscillating arm is formed by connecting a pair of curved first support plates, the first support plates including a straight section and an arcuate section connected to the straight section, the arcuate section being provided with the first mounting hole. Since the ductile iron pipe is a round pipe, the arcuate section provided on the lower section of the oscillating arm facilitates the rapping wheel to approach the pipe for rapping.

[0013] Furthermore, the length of the straight section is 650mm to 1000mm, the radius of the arc section is 1565mm to 1665mm, and the central angle of the arc is 20° to 30°. By designing the numerical ranges of the straight section and the arc section, it can be applied to the rapping work of ductile iron pipes with different diameters.

[0014] Furthermore, the upper section of the vibration arm is formed by connecting a pair of curved second support plates, and the second support plates are provided with a plurality of first mounting holes. By providing a plurality of first mounting holes, the vibration wheel can be installed in different positions, thereby increasing the applicability of the vibration arm of the utility model.

[0015] Furthermore, the lower section of the oscillating arm and the upper section of the oscillating arm are both provided with a plurality of reinforcing plates, so as to enhance the structural strength of the lower section of the oscillating arm and the upper section of the oscillating arm.

[0016] Furthermore, the first connecting plate and the second connecting plate are provided with corresponding connecting holes, which connect the first connecting plate and the second connecting plate through the connecting holes, thereby facilitating disassembly and replacing upper sections of oscillating arms of different sizes when oscillating ductile iron pipes of different diameters.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] 1. Through the multi-stage rapping arm of the utility model, the rapping wheel can be installed at different positions according to the different pipe diameters, thereby realizing rapping work in multiple positions, being applicable to rapping work of different pipe diameters, improving the rapping range and applicability, and solving the problem of fixed rapping position of the existing rapping device. At the same time, when the position of the rapping wheel needs to be adjusted according to different pipe types, the first connecting plate and the second connecting plate are detachably connected, so that the upper section of the rapping arm of different sizes can be replaced for adjustment, further improving applicability, avoiding the problem of replacing the rapping device as a whole, reducing manual workload, and improving work efficiency.

[0019] 2. The multi-stage vibration arm of the utility model is connected to the fixed shaft provided on the base of the centrifugal lining device through the second mounting hole, so that the multi-stage vibration arm of the utility model can rotate around the fixed shaft. When the ductile iron pipe is hoisted onto the device for centrifugal lining, the multi-stage vibration arm is rotated to provide hoisting space for the ductile iron pipe.

[0020] 3. The airbag tightening plate is connected to the airbag, so that the vibrating wheel on the vibrating arm of the utility model is pressed against the pipeline after the airbag is inflated. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a side view of a multi-stage vibration arm suitable for pipes of different diameters (can be used for large diameter pipes) of the present invention;

[0022] Figure 2 This is a first perspective view of the lower section of a multi-stage oscillating arm suitable for pipes with different diameters according to the present invention;

[0023] Figure 3 This is a second perspective view of the lower section of a multi-stage oscillating arm suitable for pipes with different diameters according to the present invention;

[0024] Figure 4 This is a structural schematic diagram of the upper section of a multi-stage oscillating arm suitable for pipes with different diameters according to the present invention;

[0025] Figure 5This is a side view of a multi-stage vibration arm suitable for pipes of different diameters (can be used for small diameter pipes) of the present invention.

[0026] In the figure: 1. Lower section of the oscillating arm; 2. Upper section of the oscillating arm; 3. First connecting plate; 301. Side plate; 4. Second connecting plate; 5. First supporting plate; 6. Second supporting plate; 7. First mounting hole; 8. Second mounting hole; 9. Airbag tightening plate; 10. First reinforcing plate; 11. Second reinforcing plate; 12. Third reinforcing plate; 13. Fourth reinforcing plate; 14. Third connecting plate; 15. Fourth connecting plate; 16. Connecting seat. DETAILED DESCRIPTION

[0027] The following is a clear and complete description of the technical solution of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] In the description of the present invention, it should be noted that the terms "middle", "upper", "lower", "left", "right", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0029] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0030] The following combination Figures 1 to 5 Through specific embodiments and application scenarios, a multi-stage vibration arm suitable for different pipe diameters provided by an embodiment of the utility model is described in detail.

[0031] A multi-stage vibrating arm suitable for pipes with different diameters includes a vibrating arm lower section 1 and a vibrating arm upper section 2. A first connecting plate 3 is provided at one end of the vibrating arm lower section 1, and a second connecting plate 4 is provided at one end of the vibrating arm upper section 2. The first connecting plate 3 and the second connecting plate 4 are detachably connected; both the vibrating arm lower section 1 and the vibrating arm upper section 2 are provided with a first mounting hole 7, which is used to install a vibrating wheel; a second mounting hole 8 is also provided at the end of the vibrating arm lower section 1 away from the first connecting plate 3.

[0032] Specifically, such as Figures 1 to 4 As shown, the multi-stage vibrating arm includes a vibrating arm lower section 1 and a vibrating arm upper section 2, and the vibrating arm lower section 1 and the vibrating arm upper section 2 are both curved as a whole. Since the ductile iron pipe needs to be placed on a centrifugal lining device when undergoing internal lining, the multi-stage vibrating arm of the utility model is installed on the centrifugal lining device and is located on one side of the ductile iron pipe. The vibrating arm lower section and the vibrating arm upper section 2 are designed to be curved, so that the vibrating wheel on the multi-stage vibrating arm can be closer to the pipeline. A plurality of first mounting holes 7 are also provided on the multi-stage vibrating arm, and the vibrating wheel can be installed at different positions according to the different pipe diameters, thereby realizing vibrating work at multiple positions, being applicable to vibrating work of different pipe diameters, improving the vibrating range and applicability, and solving the problem of fixed vibrating position of the existing vibrating device. A first connecting plate 3 is welded to one end of the lower section 1 of the oscillating arm, and a second connecting plate 4 is welded to one end of the upper section 2 of the oscillating arm. The first connecting plate 3 and the second connecting plate 4 are connected by bolts, so that the upper section 2 of the oscillating arm and the lower section 1 of the oscillating arm can be disassembled. When rapping ductile iron pipes of different diameters, the upper sections 2 of the oscillating arm of different lengths can be replaced to adjust the position of the oscillating wheel, thereby improving the applicability of the present invention and avoiding the problem of replacing the rapping device as a whole, reducing the manual workload and improving work efficiency. A cylindrical connecting seat 16 is provided at one end of the lower section 1 of the oscillating arm away from the first connecting plate 3, and a circular second mounting hole 8 is provided on the connecting seat. The second mounting hole 8 is used to connect to a fixed shaft provided on the centrifugal coating device, so that the multi-stage oscillating arm of the present invention can rotate around the fixed shaft. When hoisting the pipe onto the centrifugal lining device, since the multi-stage vibration arm is connected to the centrifugal lining device through the second mounting hole 8, it will affect the hoisting space. The position is adjusted by rotating the multi-stage vibration arm to leave space for hoisting the pipe.

[0033] Further, if Figure 2 As shown, a pair of side plates 301 are welded to the first connecting plate 3 , and the side plates 301 limit the movement of the second connecting plate 4 , thereby enhancing the connection stability between the first connecting plate 3 and the second connecting plate 4 .

[0034] Further, if Figure 1 and Figure 3As shown, an airbag tightening plate 9 is provided on the lower section 1 of the vibrating arm, and the airbag tightening plate 9 is fixedly connected to the lower section 1 of the vibrating arm through two flat plates. Four bolt holes are provided on the airbag tightening plate 9 for fixing the airbag, which is connected to the airbag through the airbag tightening plate 9. After the airbag is inflated, the multi-stage vibrating arm is pushed, so that the vibrating wheel on the multi-stage vibrating arm of the utility model is close to the pipeline.

[0035] Further, if Figure 2 and Figure 3 As shown, the lower section 1 of the oscillating arm is connected by a pair of curved first support plates 5. Two third connecting plates 14 are welded to both sides of the lower section 1 of the oscillating arm. The two third connecting plates 14 are respectively located on both sides of the first support plates 5 and are welded to the two first support plates 5, thereby improving the structural strength of the lower section 1 of the oscillating arm. The first support plate 5 includes a straight section and an arc section fixedly connected to the straight section. The arc section is provided with a first mounting hole 7 for mounting a rapping wheel. Since the ductile iron pipe is a round pipe, the arc section of the lower section 1 of the oscillating arm facilitates the rapping wheel to be close to the pipe for rapping.

[0036] Furthermore, the length of the straight section is 650mm to 1000mm, preferably 850mm. The radius of the arc section is 1565mm to 1665mm, preferably 1615mm; the central angle of the arc is 20° to 30°, preferably 25°. By designing the numerical ranges of the straight and arc sections, it can be adapted to rapping operations for ductile iron pipes of different diameters.

[0037] Further, if Figure 1 and Figure 4 As shown, the upper section 2 of the vibration arm is connected by a pair of curved second support plates 6, and a plurality of first mounting holes 7 are provided on the second support plate 6. By providing a plurality of first mounting holes 7, the vibration wheel can be installed at different positions, thereby improving the applicable range of the vibration arm of the utility model. Specifically, when the pipe type of the ductile iron pipe is DN2000-3000, refer to Figure 1 As shown, two first mounting holes 7 are provided on the second support plate 6, and a fourth connecting plate 15 is provided between the two first mounting holes 7. The fourth connecting plate 15 is welded to a pair of second support plates 6 to improve the structural strength of the upper section 2 of the oscillating arm; the upper section 2 of the oscillating arm is an arc with a radius of 1565mm to 1665mm, preferably, a radius of 1615mm. When the pipe type of the ductile iron pipe is DN1200 to 2000, refer to Figure 5 As shown, a first mounting hole 7 is provided at the end of the second support plate 6, and the radius of the arc is 300mm to 400mm, preferably 350mm. Replacing the upper section 2 of the oscillating arm of different lengths according to different tube types avoids replacing the entire structure, reduces manual workload, and improves work efficiency.

[0038] Further, if Figure 1 、 Figure 2 、 Figure 3 and Figure 4 As shown, several reinforcing plates are provided on both the lower section 1 of the vibrating arm and the upper section 2 of the vibrating arm. Specifically, the reinforcing plates include a first reinforcing plate 10, a second reinforcing plate 11, a third reinforcing plate 12 and a fourth reinforcing plate 13. Two first reinforcing plates 10 are provided on both sides of the lower section 1 of the vibrating arm. The two first reinforcing plates 10 are welded to the two first support plates 5, and one end of the first reinforcing plate 10 is also welded to the first connecting plate 3; the two second reinforcing plates 11 are welded to the side of one of the first support plates 5, and one end of the second reinforcing plate 11 is also welded to the first connecting plate 3; the structural strength of the lower section 1 of the vibrating arm is improved by the first reinforcing plates 10 and the second reinforcing plates 11. Similarly, two third reinforcing plates 12 are welded on both sides of the upper section 2 of the vibrating arm, and two fourth reinforcing plates 13 are also welded on one side of one of the second support plates 6. The structural strength of the upper section 2 of the vibrating arm is improved by the third reinforcing plates 12 and the fourth reinforcing plates 13.

[0039] Further, if Figure 2 and Figure 4 As shown, three corresponding connection holes are provided on the first connection plate 3 and the second connection plate 4. Preferably, the connection holes are bolt holes. The first connection plate 3 and the second connection plate 4 are connected through the connection holes, which facilitates disassembly and facilitates replacement of the upper section 2 of the oscillating arm of different sizes when rapping ductile iron pipes of different diameters.

[0040] When using the multi-stage vibrating arm of the present invention, first select a suitable upper section 2 of the vibrating arm according to different pipe types, connect the upper section 2 of the vibrating arm to the lower section 1 of the vibrating arm by bolts, and install the vibrating wheel. Then connect the multi-stage vibrating arm to the fixed shaft provided on the centrifugal lining device through the second mounting hole 8, wherein the fixed shaft can be disassembled on the centrifugal lining device to facilitate the installation of the multi-stage vibrating arm. After the multi-stage vibrating arm is installed, the position of the multi-stage vibrating arm is adjusted by rotation to provide space for hoisting the ductile iron pipe. After the hoisting is completed, the airbag connected to the airbag tightening plate 9 is inflated. After the airbag is inflated, the multi-stage vibrating arm is pushed up and the vibrating wheel is pressed against the ductile iron pipe, and the centrifugal lining of the ductile iron pipe can be carried out.

[0041] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multi-stage vibration arm suitable for pipes of different diameters, characterized in that: The invention comprises a lower section (1) of a vibration arm and an upper section (2) of a vibration arm, wherein one end of the lower section (1) of the vibration arm is provided with a first connecting plate (3), and one end of the upper section (2) of the vibration arm is provided with a second connecting plate (4), and the first connecting plate (3) and the second connecting plate (4) are detachably connected; the lower section (1) of the vibration arm and the upper section (2) of the vibration arm are both provided with a plurality of first mounting holes (7), and the first mounting holes (7) are used for mounting a vibration wheel; and the end of the lower section (1) of the vibration arm away from the first connecting plate (3) is also provided with a second mounting hole (8).

2. The multi-stage oscillating arm suitable for pipes of different diameters according to claim 1, characterized in that: A side plate (301) is provided on the first connecting plate (3).

3. The multi-stage oscillating arm suitable for pipes of different diameters according to claim 1, characterized in that: An airbag tightening plate (9) is provided on the lower section (1) of the oscillating arm.

4. The multi-stage oscillating arm suitable for pipes of different diameters according to claim 1, characterized in that: The lower section (1) of the oscillating arm is formed by connecting a pair of curved first support plates (5), wherein the first support plate (5) comprises a straight section and an arc section connected to the straight section, and the first mounting hole (7) is provided on the arc section.

5. The multi-stage oscillating arm suitable for pipes of different diameters according to claim 4 is characterized in that: The length of the straight section is 650 mm to 1000 mm, the radius of the arc section is 1565 mm to 1665 mm, and the central angle of the arc is 20° to 30°.

6. The multi-stage oscillating arm suitable for pipes of different diameters according to claim 1, characterized in that: The upper section (2) of the oscillating arm is formed by connecting a pair of curved second support plates (6), and the second support plates (6) are provided with a plurality of the first mounting holes (7).

7. The multi-stage oscillating arm suitable for pipes of different diameters according to claim 1, characterized in that: The lower section (1) of the vibration arm and the upper section (2) of the vibration arm are both provided with a plurality of reinforcing plates.

8. The multi-stage oscillating arm suitable for pipes of different diameters according to claim 1, characterized in that: Corresponding connection holes are provided on the first connection plate (3) and the second connection plate (4).

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