CN218894816U

CN218894816U - Metallurgical stopper cylinder and gas circuit structure

Info

Publication number: CN218894816U
Application number: CN202222515626.9U
Authority: CN
Inventors: 车万敏
Original assignee: Qingdao Weideli Hydraulic Machinery Co ltd
Current assignee: Qingdao Weideli Hydraulic Machinery Co ltd
Priority date: 2022-09-22
Filing date: 2022-09-22
Publication date: 2023-04-21
Anticipated expiration: 2032-09-22

Abstract

The utility model relates to the technical field of metallurgical stopper cylinders, in particular to a metallurgical stopper cylinder and a gas circuit structure. The novel air supply device comprises an air cylinder shell, wherein a piston cavity is arranged in the air cylinder shell, a piston rod is movably arranged in the piston cavity, an air inlet channel communicated with the piston cavity is formed in one side of the air cylinder shell in a penetrating manner, an air exhaust hole communicated with the piston cavity is formed in the other side of the air cylinder shell in a penetrating manner, a limiting end is arranged at one end of the piston rod, the limiting end penetrates through the piston and extends to one side of the piston, a gas path channel communicated with the air exhaust hole is arranged in the air cylinder, backflow gas is used as supplementing gas, the conveying amount of newly-fed gas can be reduced, a small amount of gas is supplemented through a first one-way valve, the piston rod can be controlled to normally extend out, a part of thrust of the backflow gas acts on the piston to assist in pushing the piston to move, the newly-fed gas and the backflow gas jointly push the piston to move, the moving efficiency of the piston can be improved, and the energy consumption of air supply equipment can be reduced.

Description

Metallurgical stopper cylinder and gas circuit structure

Technical Field

The utility model relates to the technical field of metallurgical stopper cylinders, in particular to a metallurgical stopper cylinder and a gas circuit structure.

Background

In metallurgical production, the stopper is an apparatus for stacking metallurgical conveyors, and there are two actions of the stopper: preventing the part from moving, so that the part is static to a set station from a moving state; releasing the part, enabling the part to pass through the original station from a static state to the next station, switching between the two actions is realized by the movement of the cylinder, and the part is prevented from passing through by a cylinder jacking mechanism of the metallurgical stopper; when the cylinder of the metallurgical stopper is used for controlling the extension of the piston rod, the external mechanism is pushed, so that larger thrust is needed, and in the gas path structure of the existing cylinder, larger ventilation quantity is needed to ensure the normal operation of the metallurgical stopper.

Disclosure of Invention

The utility model provides a metallurgical stopper cylinder and a gas path structure aiming at the technical problems of the metallurgical stopper cylinder and the gas path structure.

The utility model provides a metallurgical stopper air cylinder, which comprises an air cylinder shell, wherein a piston cavity is arranged in the air cylinder shell, a piston rod is movably arranged in the piston cavity, an air inlet channel communicated with the piston cavity is formed in one side of the air cylinder shell in a penetrating manner, an air exhaust hole communicated with the piston cavity is formed in the other side of the air cylinder shell in a penetrating manner, a first buffer cavity is formed in one end of the piston cavity, a buffer groove is formed in the inner wall of the first buffer cavity, a second buffer cavity is formed in the other end of the piston cavity, a limiting ring is arranged at the edge, close to one side of the second buffer cavity, of the inner wall of the piston cavity, a piston is fixedly arranged on the piston rod, a sealing plug is arranged on one side of the piston, and one end of the piston rod is provided with a limiting end which penetrates through the piston and extends to one side of the piston.

As a further improvement of the technical scheme, the piston divides the piston cavity into a compression cavity and an exhaust cavity from left to right, the compression cavity positioned at the left side of the piston is communicated with the air inlet channel, and the exhaust cavity positioned at the right side of the piston is communicated with the exhaust hole.

As a further improvement of the technical scheme, a through hole is formed in the center of the side wall surface of the limiting ring, and the outer diameter size of the sealing plug is matched with the inner diameter size of the through hole.

As a further improvement of the technical scheme, the surface of the cylinder shell is provided with an exhaust port communicated with the first buffer cavity in a penetrating mode, and a threaded plug for sealing the exhaust port is arranged in the exhaust port.

The second object of the utility model is to provide a gas path structure arranged in a metallurgical stopper cylinder, which comprises a piston cavity, and a gas inlet channel and a gas outlet hole which are communicated with the piston cavity, wherein the gas path channel which is communicated with the gas outlet hole is arranged in a cylinder shell, the other end of the gas path channel is communicated with the gas inlet channel, a second one-way valve is arranged in the gas path channel, a first one-way valve is arranged in the gas inlet channel, a gas release hole which is communicated with the gas path channel is arranged on the surface of the cylinder shell in a penetrating way, and a gas release valve is arranged in the gas release hole.

As a further improvement of the technical scheme, the first one-way valve is positioned at the bottom opening of the air inlet channel.

Compared with the prior art, the utility model has the beneficial effects that:

in the metallurgical stopper cylinder and the gas circuit structure, a gas circuit channel communicated with the exhaust hole is arranged in the cylinder, a second one-way valve capable of exhausting to the air inlet channel is arranged in the gas circuit channel, a circulating gas circuit is formed among the piston cavity, the gas circuit channel and the first buffer cavity, when the piston moves to the air exhaust cavity, gas in the air exhaust cavity flows back to the compression cavity through the gas circuit channel, the back-flowing gas serves as supplementary gas, the conveying amount of newly-fed gas can be reduced, a small amount of gas is fed in through the first one-way valve, the piston rod can be controlled to normally extend, a part of thrust of the back-flowing gas acts on the piston to assist in pushing the piston to move, the newly-fed gas and the back-flowing gas push the piston to move together, the moving efficiency of the piston can be improved, and the energy consumption of air supply equipment can be reduced.

Drawings

FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present utility model;

FIG. 2 is a schematic cross-sectional view of a cylinder housing according to an embodiment of the present utility model;

fig. 3 is a schematic cross-sectional view of a piston according to an embodiment of the present utility model.

The meaning of each reference sign in the figure is:

1. a cylinder housing;

101. a piston chamber; 1011. a first buffer chamber; 1012. a second buffer chamber; 1013. a buffer tank; 1014. a limiting ring; 102. an air intake passage; 1021. a first one-way valve; 103. an exhaust hole; 1031. an air path channel; 1032. a second one-way valve; 1033. a bleed valve; 104. a threaded plug;

2. a piston rod;

201. a piston; 2011. a sealing plug; 2012. and a limiting end.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In embodiment 1, as shown in fig. 1-3, an object of the present utility model is to provide a metallurgical stopper cylinder, which comprises a cylinder housing 1, a piston cavity 101 is disposed in the cylinder housing 1, a piston rod 2 is movably mounted in the piston cavity 101, one side of the cylinder housing 1 is provided with an air inlet channel 102 communicated with the piston cavity 101 in a penetrating manner, the other side of the cylinder housing 1 is provided with an air outlet 103 communicated with the piston cavity 101 in a penetrating manner, one end of the piston cavity 101 is provided with a first buffer cavity 1011, the inner wall of the first buffer cavity 1011 is provided with a buffer slot 1013, the other end of the piston cavity 101 is provided with a second buffer cavity 1012, in order to limit the extension length of the piston rod 2, a limit ring 1014 is disposed at the edge of one side of the inner wall of the piston cavity 101 close to the second buffer cavity 1012, when the metallurgical stopper is required to be controlled by the cylinder, the piston 201 is moved from the left side of the piston cavity 101 to the right side of the piston cavity 101, the piston 201 is tightly attached to the limit ring 1014, the piston rod 2 is completely extended out of the cylinder housing 1, the piston 201 is fixedly mounted on the piston rod 2, one side of the piston 201 is provided with a sealing plug 2011, when the piston 201 is moved to one side of the first buffer cavity 1011, the piston 201 is prevented from blocking the channel 102, and therefore, the piston 201 is provided with a limit end 2012 extends to the limit end 2012, and extends to the limit end 2012.

The piston 201 divides the piston chamber 101 into a compression chamber and an exhaust chamber, the compression chamber on the left side of the piston 201 is communicated with the air inlet channel 102, the exhaust chamber on the right side of the piston 201 is communicated with the exhaust hole 103, and the sizes of the compression chamber and the exhaust chamber are changed continuously along with the position of the piston 201.

In order to limit the extension length of the piston rod 2, a through hole is formed in the center of the side wall surface of the limiting ring 1014, the outer diameter of the sealing plug 2011 is matched with the inner diameter of the through hole, the outer wall of the sealing plug 2011 is tightly attached to the inner wall of the through hole, and when the piston 201 is tightly attached to the limiting ring 1014, the piston rod 2 is in a fully extended state, and at the moment, the sealing plug 2011 is inserted into the through hole to assist the piston 201 to seal with the limiting ring 1014.

When the piston rod 2 is required to retract after extending, the air in the compression cavity is required to be exhausted, so that the air pressures at two ends of the compression cavity and the air exhaust cavity are consistent.

In embodiment 2, when the compressed gas pushes the piston 201 to move in the piston cavity 101 through the air inlet channel 102 and the piston rod 2 stretches out, the piston rod 2 of the metallurgical stopper cylinder needs to stretch into the piston cavity completely, the required gas amount is large, the required gas pushing force for pushing the piston 201 is also large, as shown in fig. 2, the piston cavity 101, the air inlet channel 102 and the air outlet 103 communicated with the piston cavity 101 are included, the air channel 1031 communicated with the air outlet 103 is formed in the cylinder shell 1, the other end of the air channel 1031 is communicated with the air inlet channel 102, the second one-way valve 1032 is installed in the air channel 1031, the air in the air channel 1031 can be only discharged into the air inlet channel 102 in one way, the first one-way valve 1021 is installed in the air inlet channel 102, the first one-way valve 1021 can only control the air to be conveyed from outside into the air inlet channel 102 in one way, the air outlet hole communicated with the air channel 1031 is formed in the surface of the cylinder shell 1, and the air outlet valve 1033 is installed in the hole.

The working process comprises the following steps: when gas is introduced into the compression cavity through the air inlet channel 102, the compressed gas pushes the piston 201 to move in the piston cavity 101, so that the piston rod 2 stretches out, the gas at one side of the air outlet cavity enters the air channel 1031 through the air outlet 103 and is returned into the air inlet channel 102 through the second one-way valve 1032, the returned gas enters the compression cavity together with the gas newly fed through the first one-way valve 1021, the returned gas serves as supplementary gas, the conveying amount of the newly fed gas can be reduced, a part of thrust force of the returned gas acts on the piston 201, the piston 201 is pushed to move in an auxiliary mode, the newly fed gas and the returned gas push the piston 201 to move together, and the moving efficiency of the piston 201 can be improved; in order to ensure that when the screw plug 104 is unscrewed and the exhaust port is opened, and the compression cavity is deflated, the piston 201 is retracted, and since the second one-way valve 1032 is a one-way valve, in order to ensure that the piston 201 can be normally retracted, the gas path channel 1031 is provided with a deflation hole communicated with the gas path channel 1031, and by opening the deflation valve 1033, the air pressures at both ends of the compression cavity and the exhaust cavity are the same, so that the piston 201 can be ensured to be normally retracted into the piston cavity 101.

The first one-way valve 1021 is positioned at the bottom opening of the air inlet channel 102, the first one-way valve 1021 is positioned below the second one-way valve 1032, so that gas in the gas channel 1031 is directly fed into the first buffer cavity 1011 through the air inlet channel 102, a circulating gas channel is formed among the piston cavity 101, the gas channel 1031 and the first buffer cavity 1011, when the piston 201 moves to the right side and compresses the gas in the second buffer cavity 1012, the gas in the second buffer cavity 1012 is discharged into the air inlet channel 102 in a one-way through the second one-way valve 1032, and because the energy loss exists in the compression of the gas in the compression cavity, the gas fed into the compression cavity by the air outlet cavity is insufficient to push the piston 201 to move to the right side, and a small amount of gas needs to be fed through the first one-way valve 1021 so as to control the piston rod 2 to extend normally, thus effectively reducing the gas quantity fed into a cylinder and reducing the energy consumption of air supply equipment; preferably, the first check valve 1021 and the second check valve 1032 are both common check valves, and the specific working principle thereof is as follows: the check valve is a directional control valve in which the air flow can flow only in one direction but not in the opposite direction. The working principle is the same as that of a hydraulic one-way valve; compressed air enters from the port P, overcomes the spring force and friction force to open the valve port of the one-way valve, and flows from the port P to the port A; when the P port is free from compressed air, under the action of spring force and residual force of the A port (cavity); the valve port is in a closed state, so that the air flow from A to P is not communicated, and the valve port is a direction control valve which can only flow in one direction but not flow reversely.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present utility model, and are not intended to limit the utility model, and that various changes and modifications may be made therein without departing from the spirit and scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a metallurgical stopper cylinder, includes cylinder casing (1), be provided with piston chamber (101) in cylinder casing (1), movable mounting has piston rod (2) in piston chamber (101), inlet channel (102) with piston chamber (101) intercommunication have been run through to cylinder casing (1) one side, exhaust hole (103) with piston chamber (101) intercommunication have been run through to cylinder casing (1) opposite side, its characterized in that: the piston comprises a piston body, and is characterized in that a first buffer cavity (1011) is arranged at one end of the piston cavity (101), a buffer groove (1013) is formed in the inner wall of the first buffer cavity (1011), a second buffer cavity (1012) is arranged at the other end of the piston cavity (101), a limit ring (1014) is arranged at the edge of one side of the inner wall of the piston cavity (101) close to the second buffer cavity (1012), a piston (201) is fixedly arranged on the piston rod (2), a sealing plug (2011) is arranged on one side of the piston (201), a limit end (2012) is arranged at one end of the piston rod (2), and the limit end (2012) penetrates through the piston (201) and extends to one side of the piston (201).

2. The metallurgical stopper cylinder of claim 1 wherein: the piston (201) divides the piston cavity (101) into a compression cavity and a discharge cavity, the compression cavity positioned at the left side of the piston (201) is communicated with the air inlet channel (102), and the discharge cavity positioned at the right side of the piston (201) is communicated with the discharge hole (103).

3. The metallurgical stopper cylinder of claim 1 wherein: and a through hole is formed in the center of the side wall surface of the limiting ring (1014), and the outer diameter size of the sealing plug (2011) is matched with the inner diameter size of the through hole.

4. The metallurgical stopper cylinder of claim 1 wherein: an exhaust port communicated with the first buffer cavity (1011) is formed in the surface of the cylinder shell (1) in a penetrating mode, and a threaded plug (104) used for sealing the exhaust port is arranged in the exhaust port.

5. A gas circuit structure of a metallurgical stopper cylinder comprising the metallurgical stopper cylinder of any one of claims 1-4, comprising a piston chamber (101), and an intake channel (102) and an exhaust port (103) communicating with the piston chamber (101), characterized in that: an air channel (1031) communicated with the air vent hole (103) is formed in the air cylinder shell (1), the other end of the air channel (1031) is communicated with the air inlet channel (102), a second one-way valve (1032) is arranged in the air channel (1031), a first one-way valve (1021) is arranged in the air inlet channel (102), an air vent communicated with the air channel (1031) is formed in the surface of the air cylinder shell (1) in a penetrating mode, and an air vent valve (1033) is arranged in the air vent.

6. The gas circuit structure of the metallurgical stopper cylinder according to claim 5, wherein: the first check valve (1021) is positioned at the bottom opening of the air inlet channel (102).