WO2021072903A1

WO2021072903A1 - Operating door for manual discharging device of locomotive converter

Info

Publication number: WO2021072903A1
Application number: PCT/CN2019/119868
Authority: WO
Inventors: 刘佳; 孙湘漪; 金春羽; 刘雄; 刘谆; 张创业; 张弛
Original assignee: 中车永济电机有限公司
Priority date: 2019-10-16
Filing date: 2019-11-21
Publication date: 2021-04-22
Also published as: CN110829794A

Abstract

Disclosed is an operating door for a manual discharging device of a locomotive converter, relating to the field of auxiliary apparatuses of locomotive converters. The operating door mainly comprises a door plate assembly and a door inner assembly, wherein the door plate assembly is in the shape of a major arc plate, a linear side door plate surface of the door plate assembly is fixed on one side of a hinge, a fixing bolt for fixing is arranged on the other side of the hinge, and a rolling-sliding screw is further arranged on the left side of a major arc of the door plate assembly; and the door inner assembly comprises a sealing washer and an annular, cylindrical sealing block, the sealing washer is retained in the annular, cylindrical sealing block, and the door inner assembly further comprises a threaded hole adapted to the rolling-sliding screw. Further disclosed is a locomotive converter using the operating door for a manual discharging device of a locomotive converter. When the operating door is closed, the door plate assembly rotates in the direction of a cabinet door, the door plate assembly is tightly pressed against the sealing washer, and sealing of the operating door is achieved; and when the operating door is opened, the door plate assembly is rotated in the direction away from the cabinet door. The present invention is high in terms of adaptability, small in terms of design, high in terms of operation identification degree and easy to identify in terms of appearance, and the operation visibility is improved.

Description

Operating door for manual discharge device of locomotive converter

Technical field

The invention relates to the field of auxiliary equipment for locomotive converters, in particular to an operating door for a manual discharge device of a locomotive converter, which is suitable for improving the operation of the manual discharge device of a locomotive converter.

Background technique

The current discharge methods used in locomotive converters include chopper discharge, slow discharge resistance discharge, and manual discharge. Among them, the manual discharge device is a safety protection device on the rail transit converter. It is a double-fuse discharge measure after the electrical discharge mode is completed. It is also a relatively fast and safe discharge method before the converter is maintained. In order to facilitate the operation of the manual discharge device, its peripheral operation design should be small and flexible and strictly meet the design requirements of the converter.

The manual discharge device in the current EMU converter is designed on the side of the power module in the cabinet. To operate the manual discharge device, the cabinet door of the converter cabinet needs to be removed, and then manual discharge is performed. Rail transit locomotive converters usually have a vertical structure, and the peripheral operation of the manual discharge device has glass baffle type and plastic baffle type design methods. These methods have the following shortcomings: the manual discharge device has no peripheral operation design technology, and the cabinet door panel needs to be disassembled when the discharge device is used, which is not conducive to the implementation of maintenance and maintenance, and the operation is very inconvenient; the glass or plastic door panel design, although visible Good, but usually the seal design level is not high, the protection design is not safe, and it is not easy to design a switch lock.

Summary of the invention

In order to solve the problem of simple operation and implementation of a manual discharge device in a locomotive, the present invention provides an operating door for a manual discharge device of a locomotive converter.

The present invention is realized through the following technical solutions: an operating door for a manual discharge device of a locomotive converter, comprising a door panel assembly and a door inner assembly, the door panel assembly is in the shape of a superior arc plate, and the straight side door panel of the door panel assembly The surface is fixed on one side of the hinge, and the other side of the hinge is provided with a fixing bolt for fixing. A rolling screw is also installed on the left side of the superior arc of the door panel assembly. The rolling screw includes an integrally formed screw. A screw head, a connecting rod and a thread head, the screw head is connected to the thread head through a connecting rod, the end of the thread head is a cone, the diameter of the connecting rod is smaller than the diameter of the thread head, the screw head Located on the outside of the door panel assembly, the threaded head is located inside the door panel assembly, the connecting rod is clamped on the door panel assembly; the door inner assembly includes a sealing gasket and a circular cylindrical sealing block, the sealing gasket is clamped on the circular cylindrical In the sealing block, the door inner component further includes a threaded hole adapted to the threaded head.

The present invention is mainly an operating door designed for the manual discharge device of a locomotive flow device. It is invented for the convenience of operation, and the operation of opening the door panel of the integral cabinet door is omitted. An operating door is designed on the corresponding cabinet door of the locomotive converter's manual discharge device. The operating door includes a door panel assembly and a door inner assembly. The door panel assembly is in the shape of a superior arc plate. The superior arc plate means: a circular plate passes through one The chord is divided into two parts. The longer arc is called the superior arc, so the shape is named the superior arc panel, which is the door panel assembly. The straight side door panel surface is fixed on the hinge side, so that the door panel assembly can go around The hinge shaft rotates, and the other side of the hinge is provided with a fixing bolt for fixing. When fixing on the cabinet door of the locomotive, the fixing bolt is fixed on the cabinet door. There is also a rolling slide on the left side of the superior arc of the door panel assembly. The screw is convenient for opening and closing operations. The rolling screw includes an integrated screw head, a connecting rod and a threaded head. The screwing head is connected with the threaded head through the connecting rod. The end of the threaded head is a cone and the diameter of the connecting rod Smaller than the diameter of the thread head, the screw head is located on the outside of the door panel assembly, the thread head is located on the inside of the door panel assembly, and the connecting rod is stuck on the door panel assembly. This structure makes the rolling screw in the process of implementing the switch, the screw head is used for screwing , Rotate the threaded head into the threaded hole of the internal component of the door, which will not cause the parts to fall off, and can move with the operating door; the internal component of the door includes a sealing gasket and a circular cylindrical sealing block. The sealing gasket is circular cylindrical in order to achieve sealing. The sealing block is fixedly connected to the cabinet door. The sealing gasket is stuck in the sealing block. During the process of closing and tightening the operating door with the rolling screw, the sealing gasket in the circular cylindrical sealing block is squeezed to realize the operation For the sealing effect of the door, the cabinet door is also provided with a threaded hole corresponding to the threaded head of the rolling screw. The screw head is screwed to make the door internal components and the rolling screw connect and fix, so that the operating door is closed. The specific operation of the present invention is: the door panel assembly of the operating door is rotatably connected to the cabinet door through a hinge, and the hinge is fixed on the cabinet door through a fixing screw, and at the same time, the circular cylindrical sealing block of the door inner component is fixedly connected to the cabinet door, Then clamp the sealing washer in the circular cylindrical sealing block, the threaded head of the rolling screw on the left side of the superior arc of the door panel assembly is provided with a threaded hole corresponding to the position on the cabinet door, when the door panel assembly needs to be closed, the door panel assembly faces the cabinet door Rotate in the direction to make the threaded head screw into the threaded hole, so that the door panel assembly is pressed against the sealing washer to realize the seal of the operating door. When it is necessary to open, turn the sliding screw to make it come out of the threaded hole, and the door panel assembly moves away from the cabinet. The direction of the door rotates, and the staff operates the manual discharge device.

A locomotive converter using an operating door for a manual discharging device of a locomotive converter. The traction converter cabinet includes a low-voltage control unit, a high-voltage control unit, and an auxiliary transformer control unit. The high-voltage control unit is located below the low-voltage control unit , There is a compartment between the low voltage control unit and the high voltage control unit, the auxiliary transformer control unit is located on the right side of the entire high and low voltage control unit; the operating door is located at the manual discharge of the cabinet door of the auxiliary transformer control unit on the right At the position directly opposite to the device, the cabinet door is provided with a circular hole equal to the outer diameter of the circular cylindrical sealing block, the circular cylindrical sealing block is sealed and fixed in the circular hole, and the sealing gasket is clamped in the circular In the ring cylindrical seal block, one side of the hinge is fixed to one side of the round hole by a fixing bolt, and the other side is fixedly connected to the door panel assembly, and a position corresponding to the threaded head of the rolling screw is provided on the cabinet door. Threaded hole.

A general locomotive converter mainly includes a low-voltage control unit, a high-voltage control unit, and an auxiliary transformer control unit. The structures and distributions of these three units are well-known to those skilled in the field of high-power current, so they will not be described here. This is mainly related to the setting of the operating door of the manual discharge device in the converter. The operating door is located directly opposite the manual discharge device of the cabinet door of the auxiliary transformer control unit on the right. The cabinet door has a circular cylindrical seal. A circular hole with the same outer diameter of the block, the circular cylindrical sealing block is sealed and fixed in the circular hole, the sealing gasket is clamped in the circular cylindrical sealing block, one side of the hinge is fixed to one side of the circular hole by a fixing bolt, and the other side is connected with The door panel assembly is fixedly connected. A threaded hole is provided at the position corresponding to the rolling screw on the cabinet door. When it is necessary to close, the door panel assembly is rotated toward the cabinet door, so that the threaded head of the rolling screw is screwed into the threaded hole to make The door panel assembly compresses the sealing washer to realize the sealing of the operating door. When it needs to be opened, turn the sliding screw to make it come out of the threaded hole. The door panel assembly rotates away from the cabinet door, and the staff operates the manual discharge device.

Compared with the prior art, the present invention has the following beneficial effects: the present invention provides an operating door for the manual discharge device of a locomotive converter. The operating cabinet door designed by the present invention is embedded in the converter cabinet door, and the position is changed according to the change. The corresponding position of the discharge device in the inverter should be installed in the corresponding area that is convenient for operation. From the appearance, the position of the operating door can be clearly seen, which is convenient for operation identification, and is equipped with indication labels on the side. The operating door of this design is embedded on the cabinet door of the converter through the hinge connection. The operator can open and close it by operating the sliding screw on the door. The design of the sliding screw will not cause the switch Loss of switch fastening devices in the process. After the operating door is opened, the manual switch in the cabinet can be clearly seen, and the manual discharge operation can be carried out conveniently. The design of the inner sealing ring of the operating door can meet the higher level of sealing requirements, ensure the sealing effect of the overall cabinet door, and can be applied to the harsh conditions of the application environment. The invention improves the operation convenience of the locomotive converter's discharge switch; has a higher sealing level, meets the sealing design requirements of the locomotive converter cabinet IP54 level, and has strong adaptability; the design is small and exquisite, the operation recognition is high, the appearance is easy to recognize, and the improvement Operational visibility: Fully consider the impact of the operation on the safe use of the converter, the design of the sliding screw switch mode has higher operational safety, and improves the safety and reliability of the operation door on the outer door of the converter.

Description of the drawings

Fig. 1 is a schematic diagram of the structure of the door panel assembly of the operating door of the present invention.

Fig. 2 is a schematic diagram of the structure of the door inner assembly of the operating door of the present invention.

Fig. 3 is a schematic diagram of the structure when the present invention is applied to the closing of the cabinet door of the locomotive converter.

Fig. 4 is a schematic diagram of the structure when the present invention is applied to the opening of the cabinet door of the locomotive converter.

Fig. 5 is a schematic diagram of the structure of the rolling screw of the present invention.

The markings in the figure are as follows: 1-door panel assembly, 2-hinge, 3-fixing screw, 4-rolling screw, 5-sealing washer, 6-ring cylindrical sealing block, 7-cabinet door, 8-indicating label, 9 -Manual discharge switch.

Detailed ways

The present invention will be further described below in conjunction with specific embodiments.

An operating door for a manual discharge device of a locomotive converter, as shown in Figures 1 to 2 and Figure 5: It includes a door panel assembly 1 and a door inner assembly. The door panel assembly 1 is in the shape of a superior arc plate. The door panel assembly 1 The straight-line side door panel surface is fixed on one side of the hinge 2, and the other side of the hinge 2 is provided with a fixing bolt 3 for fixing. A rolling screw 4 is also installed on the left side of the superior arc of the door panel assembly 1, so The rolling screw 4 includes an integrally formed screw head 401, a connecting rod 402, and a threaded head 403. The screwing head 401 is connected to the threaded head 403 through the connecting rod 402, and the end of the threaded head 403 is a cone. The diameter of the connecting rod 402 is smaller than the diameter of the threaded head 403, the screwing head 402 is located outside the door panel assembly 1, the threaded head 403 is located inside the door panel assembly 1, and the connecting rod 402 is clamped on the door panel assembly 1; The door inner component includes a sealing gasket 5 and a circular cylindrical sealing block 6. The sealing gasket 5 is clamped in the circular cylindrical sealing block 6, and the door internal component also includes a threaded hole adapted to the threaded head 403 .

In this embodiment, the door panel assembly 1 is made of steel plate.

A locomotive converter using the operating door for the manual discharging device of the locomotive converter, as shown in Figures 3 to 4, the traction converter cabinet includes a low-voltage control unit, a high-voltage control unit, and an auxiliary transformer control unit. The high-voltage control unit is located below the low-voltage control unit, an interlayer is provided between the low-voltage control unit and the high-voltage control unit, and the auxiliary transformer control unit is located on the right side of the entire high- and low-voltage control unit; the operating door is located on the right side. The position where the manual discharge device of the cabinet door of the side auxiliary transformer control unit is directly opposite. The cabinet door has a circular hole with the same outer diameter as the circular cylindrical sealing block 6, and the circular cylindrical sealing block 6 is sealed and fixed. In the circular hole, the sealing washer 5 is clamped in the circular cylindrical sealing block 6, one side of the hinge 2 is fixed to one side of the circular hole by a fixing bolt 3, and the other side is fixedly connected to the door panel assembly 1. A threaded hole is provided on the cabinet door at a position corresponding to the threaded head 403 of the rolling screw 4.

In this embodiment: the circular cylindrical sealing block 6 and the cabinet door are connected by welding; the cabinet door 7 is also provided with an indication mark 8 beside the position of the operating door.

The specific operation of this embodiment is as follows: the door panel assembly 1 of the operating door is rotatably connected to the cabinet door through a hinge 2, and the hinge 2 is fixed on the cabinet door by a fixing screw 3, and at the same time, the circular cylindrical sealing block 6 of the door inner assembly is made Welded and fixedly connect with the cabinet door, and then clamp the sealing washer 5 in the circular cylindrical sealing block 6. The threaded head 403 of the rolling screw 4 on the left side of the superior arc of the door panel assembly 1 is provided with a threaded hole corresponding to the position on the cabinet door When it needs to be closed, turn the door panel assembly 1 toward the cabinet door, and then rotate the screw head 401 to screw the threaded head 403 of the rolling screw 4 into the threaded hole, so that the door panel assembly 1 is pressed against the sealing washer 5 to achieve For the sealing of the operating door, when it needs to be opened, screw the sliding screw 4 to make it escape from the threaded hole, the door panel assembly 1 rotates away from the cabinet door, and the staff operates the manual discharge device.

The scope of protection claimed by the present invention is not limited to the above specific embodiments, and for those skilled in the art, the present invention can have various modifications and changes, and any modifications, improvements and equivalents made within the concept and principle of the present invention All replacements should be included in the protection scope of the present invention.

Claims

An operating door for a manual discharge device of a locomotive converter, which is characterized in that it comprises a door panel assembly (1) and a door inner assembly, the door panel assembly (1) is in the shape of a superior arc plate, and the straight line of the door panel assembly (1) The side door panel surface is fixed on one side of the hinge (2), the other side of the hinge (2) is provided with a fixing bolt (3) for fixing, and the left side of the superior arc of the door panel assembly (1) is also installed A rolling screw (4), the rolling screw (4) includes an integrally formed screw head (401), a connecting rod (402) and a threaded head (403), and the screw head (401) passes through the connecting rod ( 402) is connected to a threaded head (403), the end of the threaded head (403) is a cone, the diameter of the connecting rod (402) is smaller than the diameter of the threaded head (403), and the screwing head (402) Located on the outside of the door panel assembly (1), the threaded head (403) is located inside the door panel assembly (1), and the connecting rod (402) is clamped on the door panel assembly (1); the door inner assembly includes a sealing gasket (5) And a circular cylindrical sealing block (6), the sealing gasket (5) is clamped in the circular cylindrical sealing block (6), and the door inner component further includes a threaded hole adapted to the threaded head (403) .
An operating door for a manual discharge device of a locomotive converter according to claim 1, wherein the door panel assembly (1) is made of steel plate.
A locomotive converter using the operating door for the manual discharging device of the locomotive converter according to claim 1, wherein the traction converter cabinet includes a low-voltage control unit, a high-voltage control unit, and an auxiliary transformer control unit. The high-voltage control unit is located below the low-voltage control unit, an interlayer is provided between the low-voltage control unit and the high-voltage control unit, and the auxiliary transformer control unit is located on the right side of the entire high- and low-voltage control unit; the operating door is located on the right side. At the position directly opposite the manual discharge device of the cabinet door of the side auxiliary transformer control unit, the cabinet door is provided with a circular hole equal to the outer diameter of the circular cylindrical sealing block (6), and the circular cylindrical sealing block ( 6) Sealing and fixing in the circular hole, the sealing washer (5) is clamped in the circular cylindrical sealing block (6), and the hinge (2) is fixed on the side of the circular hole by a fixing bolt (3), The other side is fixedly connected with the door panel assembly (1), and a threaded hole is provided on the cabinet door at a position corresponding to the threaded head (403) of the rolling screw (4).
The locomotive converter using the operating door for the manual discharge device of the locomotive converter according to claim 3, characterized in that the circular cylindrical sealing block (6) is connected to the cabinet door by welding.
The locomotive converter using the operating door for the manual discharge device of the locomotive converter according to claim 3, characterized in that: on the cabinet door, an indication mark (8) is provided beside the position of the operating door.