阅读说明：本技术 一种球墨铸铁管水压机打压插口胶圈装置 (Socket rubber ring device is suppressed to nodular cast-iron pipe hydraulic press ) 是由 钟军超 陈建波 李志杰 宋剑光 于 2021-08-25 设计创作，主要内容包括：本发明涉及一种球墨铸铁管水压机打压插口胶圈装置,属于球墨铸铁管生产技术领域,包括液压装置,所述液压装置的输出轴上固定安装有活塞杆,所述活塞杆穿过插口挡板固定连接有插口推头,所述插口推头的另一端设有与球墨铸铁管的插口相配合的密封机构,且插口推头还连接有水阀装置,所述插口推头、插口挡板、液压装置和水阀装置均受控于电器控制系统。本发明采用插口外倒角唇形密封圈在球墨铸铁管插口外倒角部位进行密封,既能保证密封性能又大大提高使用寿命；采用插口外倒角唇形密封圈、插口端面密封圈和内壁缓冲垫层相配合,实现了对球墨铸铁管插口逐渐紧固密封,既保证了密封性和球墨铸铁管内壁不受损伤,又延长了胶圈装置的使用寿命。(The invention relates to a socket rubber ring pressing device of a ductile cast iron pipe hydraulic press, which belongs to the technical field of ductile cast iron pipe production and comprises a hydraulic device, wherein a piston rod is fixedly arranged on an output shaft of the hydraulic device, the piston rod penetrates through a socket baffle plate and is fixedly connected with a socket push head, a sealing mechanism matched with a socket of a ductile cast iron pipe is arranged at the other end of the socket push head, the socket push head is also connected with a water valve device, and the socket push head, the socket baffle plate, the hydraulic device and the water valve device are all controlled by an electric appliance control system. The invention adopts the spigot outer chamfer lip-shaped sealing ring to seal the spigot outer chamfer part of the nodular cast iron pipe, thereby not only ensuring the sealing performance, but also greatly improving the service life; the spigot outer chamfer lip-shaped sealing ring, the spigot end face sealing ring and the inner wall buffer cushion layer are matched, so that the spigot of the nodular cast iron pipe is gradually fastened and sealed, the sealing performance and the inner wall of the nodular cast iron pipe are not damaged, and the service life of the rubber ring device is prolonged.)

1. The utility model provides a socket rubber ring device is suppressed to nodular cast-iron pipe hydraulic press which characterized in that: the automatic water valve device is characterized by comprising a hydraulic device (7), wherein a piston rod is fixedly mounted on an output shaft of the hydraulic device (7), the piston rod is fixedly connected with a socket baffle plate (11), the piston rod penetrates through the socket baffle plate (11) and is fixedly connected with a socket push head (5), the other end of the socket push head (5) is provided with a sealing mechanism matched with a socket of the nodular cast iron pipe (1), the socket push head (5) is further connected with a water valve device (6), and the socket push head (5), the socket baffle plate (11), the hydraulic device (7) and the water valve device (6) are all controlled by an electric appliance control system (9).

2. The spigot rubber ring pressing device of the ductile cast iron pipe hydraulic press as claimed in claim 1, wherein: the sealing mechanism comprises a socket outer chamfer lip-shaped sealing ring (4) corresponding to a socket outer chamfer of the nodular cast iron pipe (1), an inner ring of the socket outer chamfer lip-shaped sealing ring (4) is connected with a socket end face sealing ring (3), an inner ring of the socket end face sealing ring (3) is connected with an inner wall cushion layer (2), and the inner wall cushion layer (2) is attached to the inner wall of the nodular cast iron pipe (1).

3. The spigot rubber ring pressing device of the ductile cast iron pipe hydraulic press as claimed in claim 1, wherein: the hydraulic device (7) is provided with a pressure display (8).

4. The spigot rubber ring pressing device of the ductile cast iron pipe hydraulic press as claimed in claim 1, wherein: the socket pushing head (5) and a piston rod of the hydraulic device (7) are fastened by bolts (10).

5. The spigot rubber ring pressing device of the ductile cast iron pipe hydraulic press as claimed in claim 2, wherein: the thickness of the socket end face sealing ring (3) is lower than that of the socket outer chamfer lip-shaped sealing ring (4).

6. The spigot rubber ring pressing device of the ductile cast iron pipe hydraulic press according to claim 5, is characterized in that: the spigot end face seal ring (3) corresponds to the nodular cast iron pipe (1).

Technical Field

The invention relates to a socket rubber ring pressing device of a ductile cast iron pipe hydraulic press, and belongs to the technical field of ductile cast iron pipe production.

Background

In the production line of the nodular cast iron pipe, the hydraulic press is used for detecting the water pressure and pressure resistance of the production line of the nodular cast iron pipe, so that the delivered products can meet the water pressure test requirement and the pipelines have no leakage. The hydraulic press testing process comprises the following steps: the nodular cast iron pipe is sealed at two ends through the bell and spigot plugs, high-pressure water is filled in the pipe, the pressure is maintained for a certain time, the water leakage phenomenon does not occur, and the pipe is communicated with the next process after the detection is qualified. The original hydraulic press is pressed to be inserted and sealed by the pipe socket force, the rubber ring is damaged seriously, the rubber ring has short service life and is replaced frequently, and the normal production rhythm is influenced.

Disclosure of Invention

The invention aims to provide a socket rubber ring pressing device of a ductile cast iron pipe hydraulic press, which solves the problem that the service life of the existing socket sealing rubber ring is short.

In order to achieve the purpose, the invention adopts the technical scheme that:

the socket rubber ring pressing device comprises a hydraulic device, wherein a piston rod is fixedly mounted on an output shaft of the hydraulic device, the piston rod is fixedly connected with a socket baffle, the piston rod penetrates through the socket baffle and is fixedly connected with a socket pushing head, a sealing mechanism matched with a socket of the nodular cast iron pipe is arranged at the other end of the socket pushing head, the socket pushing head is further connected with a water valve device, and the socket pushing head, the socket baffle, the hydraulic device and the water valve device are all controlled by an electric appliance control system.

The technical scheme of the invention is further improved as follows: the sealing mechanism comprises a socket outer chamfer angle lip-shaped sealing ring corresponding to a socket outer chamfer angle of the nodular cast iron pipe, an inner ring of the socket outer chamfer angle lip-shaped sealing ring is connected with a socket end face sealing ring, an inner ring of the socket end face sealing ring is connected with an inner wall cushion layer, and the inner wall cushion layer is attached to the inner wall of the nodular cast iron pipe.

The technical scheme of the invention is further improved as follows: the hydraulic device is provided with a pressure display.

The technical scheme of the invention is further improved as follows: the socket pushing head and a piston rod of the hydraulic device are fastened by bolts.

The technical scheme of the invention is further improved as follows: the thickness of the socket end face sealing ring is smaller than that of the socket outer chamfer lip-shaped sealing ring.

The technical scheme of the invention is further improved as follows: the spigot end face seal ring corresponds to the nodular cast iron pipe.

Due to the adoption of the technical scheme, the invention has the following technical effects:

the invention adopts the spigot outer chamfer lip-shaped sealing ring to seal the spigot outer chamfer part of the nodular cast iron pipe, thereby ensuring the sealing performance and greatly prolonging the service life.

The invention adopts the matching of the spigot outer chamfer lip-shaped sealing ring, the spigot end face sealing ring and the inner wall cushion layer, realizes the gradual fastening and sealing of the spigot of the nodular cast iron pipe, not only ensures the sealing performance and the inner wall of the nodular cast iron pipe not to be damaged, but also prolongs the service life of the rubber ring device.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of the sealing mechanism of the present invention;

the device comprises a nodular cast iron pipe 1, a nodular cast iron pipe 2, an inner wall buffer cushion layer 3, a socket end face sealing ring 4, a socket outer chamfer lip-shaped sealing ring 5, a socket pushing head 6, a water valve device 7, a hydraulic device 8, a pressure display 9, an electric appliance control system 10, a bolt 11 and a socket baffle.

Detailed Description

The invention is described in further detail below with reference to the following figures and specific embodiments:

a socket rubber ring pressing device of a ductile cast iron pipe hydraulic press is shown in figure 1 and comprises a hydraulic device 7, wherein the hydraulic device 7 is provided with a pressure display 8 which can display the propelling pressure of the ductile cast iron pipe 1 during extrusion sealing in real time. A piston rod is fixedly mounted on an output shaft of the hydraulic device 7, the piston rod is fixedly connected with the socket baffle 11, the piston rod penetrates through the socket baffle 11, the socket pushing head 5 is fixedly connected with the bolt 10, and the suitable socket pushing head 5 can be replaced according to different tube types.

The other end of the socket pushing head 5 is provided with a sealing mechanism matched with the socket of the nodular cast iron pipe 1, as shown in fig. 2, the sealing mechanism comprises a socket outer chamfer angle lip-shaped sealing ring 4 corresponding to the socket outer chamfer angle of the nodular cast iron pipe 1, the inner ring of the socket outer chamfer angle lip-shaped sealing ring 4 is connected with a socket end face sealing ring 3 corresponding to the nodular cast iron pipe 1, the thickness of the socket end face sealing ring 3 is smaller than that of the socket outer chamfer angle lip-shaped sealing ring 4, the socket outer chamfer angle lip-shaped sealing ring 4 is guaranteed to be a main stress sealing ring in the extrusion process, and the stress of the socket end face sealing ring 3 is smaller. The inner ring of the socket end face seal ring 3 is connected with an inner wall cushion layer 2, the inner wall cushion layer 2 is attached to the inner wall of the nodular cast iron pipe 1, and various inner wall damages caused by direct contact between the interior of the nodular cast iron pipe and a socket device can be avoided. The socket pushing head 5 is also connected with a water valve device 6, and can discharge water by pressure after the pressing is finished.

The socket pushing head 5, the socket baffle 11, the hydraulic device 7 and the water valve device 6 are all controlled by an electric appliance control system 9. The electrical control system 9 propels the socket of the nodular cast iron pipe 1 according to the instruction: the electric appliance control system 9 controls the hydraulic device 7 to drive the socket baffle 11 and the socket push head 5 to move in a pushing mode towards the direction of the nodular cast iron pipe 1, the outer chamfer surface of the socket outer chamfer lip-shaped sealing ring 4 is gradually contacted with the outer chamfer surface of the nodular cast iron pipe 1 in the pushing process, and when the two chamfer surfaces are attached, the electric appliance control system 9 controls the hydraulic device 7 to stop moving. At the moment, the spigot outer chamfer lip-shaped sealing ring, the spigot end face sealing ring and the inner wall buffer cushion layer are matched to realize gradual fastening sealing.

The above-mentioned embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solution of the present invention by those skilled in the art should fall within the protection scope defined by the claims of the present invention without departing from the spirit of the present invention.