阅读说明：本技术 一种插拔式整流变压器与高压电缆连接装置 (Plug-in rectifier transformer and high-voltage cable connecting device ) 是由 刘松成 陈文通 盛骏 吴杰清 郑晓明 陈亢 杜羿 陈廉政 王益旭 徐良凯 刘素红 于 2019-11-26 设计创作，主要内容包括：本发明涉及变压器领域,尤其是涉及一种插拔式整流变压器与高压电缆连接装置。一种插拔式整流变压器与高压电缆连接装置,包括整流变压器主体和高压电缆,高压电缆与设置在整流变压器主体上的进线高压套管通过梅花触头连接,整流变压器主体上设置有固定架,所述的高压电缆上设置有夹紧装置,所述的夹紧装置包括与高压电缆的形状相配合的外箍体和内箍体,所述的外箍体与内箍体的两侧通过紧固螺栓连接并将高压电缆夹紧,所述的内箍体上对应固定架设置有支撑板,所述的固定架上螺纹连接有升降螺杆,所述的升降螺杆的顶端与支撑板转动连接。本发明的人员作业过程无需登高,作业完成后连接可靠,提高作业效率,提高设备可靠性。(The invention relates to the field of transformers, in particular to a connecting device for a plug-in rectifier transformer and a high-voltage cable. The utility model provides a plug-in rectifier transformer and high tension cable connecting device, includes rectifier transformer main part and high tension cable, high tension cable passes through the plum blossom contact with the inlet wire high tension bushing who sets up in the rectifier transformer main part and is connected, is provided with the mount in the rectifier transformer main part, high tension cable on be provided with clamping device, clamping device include with high tension cable's shape matched with the outer hoop body and the interior hoop body, the both sides of the outer hoop body and the interior hoop body pass through fastening bolt and be connected and press from both sides high tension cable tightly, the interior hoop body on correspond the mount and be provided with the backup pad, the mount on threaded connection have a lifting screw, lifting screw's top and backup pad rotate and be connected. The personnel operation process of the invention does not need to ascend, the connection is reliable after the operation is finished, the operation efficiency is improved, and the equipment reliability is improved.)

1. The utility model provides a plug-in rectifier transformer and high tension cable connecting device, includes rectifier transformer main part and high tension cable, its characterized in that, high tension cable pass through the plum blossom contact with the inlet wire high tension bushing who sets up in the rectifier transformer main part and be connected, the rectifier transformer main part on be provided with the mount, high tension cable on be provided with clamping device, clamping device include with high tension cable's shape matched with outer hoop body and interior hoop body, the both sides of outer hoop body and interior hoop body pass through fastening bolt and be connected and press from both sides high tension cable tightly, the interior hoop body on correspond the mount and be provided with the backup pad, the mount on threaded connection have a lifting screw, lifting screw's top and backup pad rotate and be connected.

2. The device as claimed in claim 1, wherein the high-voltage bushing is connected to a conductive plate, and one end of the conductive plate, which is far away from the high-voltage bushing, is connected to the high-voltage cable through the tulip contact.

3. The device for connecting the plug-in rectifier transformer and the high-voltage cable according to claim 1, wherein a rotating cavity is formed in the bottom surface of the supporting plate, and a rotating ring located in the rotating cavity is arranged on the lifting screw rod.

4. The connecting device for the plug-in rectifier transformer and the high-voltage cable according to claim 1, 2 or 3, further comprising a stabilizing device arranged on the fixing frame, wherein the stabilizing device comprises a stabilizing shell, a cavity is arranged in the stabilizing shell, a piston is slidably connected in the cavity, a supporting rod penetrating out of the stabilizing shell is arranged on the piston, one end of the supporting rod, far away from the piston, abuts against the supporting plate, and the piston is connected with the bottom surface of the cavity through a buffer spring.

5. The device for connecting the plug-in rectifier transformer and the high-voltage cable according to claim 4, wherein a sealing strip made of an elastic material is arranged on one side of the inner hoop body close to the high-voltage cable, an expansion cavity is arranged in the sealing strip, an air outlet hole communicated with the cavity is arranged below the stabilizing shell, an air guide pipe is connected to the air outlet hole, and one end of the air guide pipe, far away from the air outlet hole, is communicated to the expansion cavity.

6. The device for connecting the plug-in rectifier transformer and the high-voltage cable according to claim 1, 2 or 3, wherein a handle is arranged at one end of the lifting screw rod, which is far away from the supporting plate.

7. The device as claimed in claim 2, wherein the rectifier transformer body is provided with a support porcelain bottle for supporting the conductive plate.

8. The device as claimed in claim 5, wherein the sealing strip is made of rubber.

Technical Field

The invention relates to the field of transformers, in particular to a connecting device for a plug-in rectifier transformer and a high-voltage cable.

Background

The rectifier transformer is a power transformer of the rectifying device. The rectifier is characterized in that the primary side inputs alternating current, and the secondary side outputs direct current after passing through a rectifier element.

The variable current is a general term of three working modes of rectification, reverse flow and frequency conversion, and the rectification is one of the most widely applied modes. A transformer used as a power source of the rectifying device is called a rectifier transformer. The majority of industrial rectified dc power is obtained from the ac network through a rectifier transformer and a rectifying device.

The high-voltage cable is directly connected with the high-voltage cable through the bolt in a rigid manner on the existing rectifier transformer, the cable terminal is influenced by the cable trend in a manner of the connection mode, the terminal contact surface and the high-voltage cable connection surface cannot be normally matched, the connection difficulty is caused, the connection quality is difficult to guarantee, the assembly and disassembly of the high-voltage cable are completed by 4 persons and above, and the time and the labor are wasted.

For example, Chinese patent publication numbers are: CN203536203U, a series rectifier transformer structure announced in 4/9/2014. The technical scheme is as follows: the voltage regulating rectifier transformer is connected with the oil storage cabinet I, the series rectifier transformer is connected with the oil storage cabinet II, the voltage regulating rectifier transformer and the series rectifier transformer are connected in parallel through an inlet wire high-voltage sleeve I arranged on the voltage regulating rectifier transformer and an inlet wire high-voltage sleeve II arranged on the series rectifier transformer by a power cable, an outlet low-voltage terminal arranged on the voltage regulating rectifier transformer is connected with a series inlet wire terminal arranged on the series rectifier transformer, and a valve side low-voltage outlet terminal is arranged on the series rectifier transformer. Although the invention can increase direct current voltage under the condition of constant current of the electrolytic bath, thereby achieving the purpose of increasing yield, the high-voltage bushing and the high-voltage cable are directly and rigidly connected through the bolt, the connection mode can cause the cable terminal to be influenced by the trend of the cable, the terminal contact surface and the high-voltage bushing connection surface can not be normally inosculated, thereby causing difficult connection and difficult guarantee of connection quality, and the assembly and disassembly of the high-voltage cable need 4 persons or more to be completed, thereby wasting time and labor.

Disclosure of Invention

The invention mainly aims to solve the problems that the connection between a high-voltage sleeve and a high-voltage cable on the existing rectifier transformer is directly and rigidly connected through a bolt, the cable terminal is influenced by the cable trend due to the connection mode, the terminal contact surface and the high-voltage sleeve connection surface cannot be normally matched, the connection is difficult, the connection quality is difficult to guarantee, the assembly and disassembly of the high-voltage cable are completed by 4 persons or more, time and labor are wasted, and the connecting device for the plug-in type rectifier transformer and the high-voltage cable can change the original rigid connection into the plug-in type connection of a plum blossom contact, is not influenced by the cable trend, does not need to ascend in the personnel operation process, is reliably connected after the operation is completed, improves the operation efficiency and improves the equipment reliability.

The purpose of the invention is mainly realized by the following scheme: the utility model provides a plug-in rectifier transformer and high tension cable connecting device, includes rectifier transformer main part and high tension cable, high tension cable pass through the plum blossom contact with the inlet wire high tension bushing that sets up in the rectifier transformer main part and be connected, the rectifier transformer main part on be provided with the mount, high tension cable on be provided with clamping device, clamping device include with high tension cable's shape matched with the outer hoop body and the interior hoop body, the both sides of the outer hoop body and the interior hoop body pass through fastening bolt and be connected and press from both sides high tension cable tightly, the interior hoop body on correspond the mount and be provided with the backup pad, the mount on threaded connection have a lifting screw, lifting screw's top and backup pad rotate and be connected. The high-voltage cable is connected with an incoming line high-voltage bushing arranged on a rectifier transformer main body through a plum blossom contact, the connection operation is simple and reliable, a fixing frame is arranged on the rectifier transformer main body, a clamping device is arranged on the high-voltage cable, the clamping device comprises an outer hoop body and an inner hoop body matched with the high-voltage cable in shape, the outer hoop body is connected with two sides of the inner hoop body through fastening bolts and clamps the high-voltage cable, a supporting plate is arranged on the inner hoop body corresponding to the fixing frame, a lifting screw rod is connected on the fixing frame in a threaded manner and is arranged in the vertical direction, the top end of the lifting screw rod is rotatably connected with the supporting plate, when the rectifier transformer is installed, the outer hoop body and the inner hoop body are fixed on the high-voltage cable through the fastening bolts, then a worker rotates the lifting screw rod, so, thereby completing the plug connection of the plum blossom contact.

Preferably, the inlet wire high-voltage bushing is connected with a conductive plate, and one end of the conductive plate, which is far away from the inlet wire high-voltage sleeve, is connected with the high-voltage cable through the tulip contact. The high-voltage bushing is connected with the current-conducting plate, one end of the current-conducting plate, far away from the high-voltage bushing, is connected with the high-voltage cable through the plum blossom contact, the current-conducting plate is connected with the static contact, one end of the high-voltage cable is connected with the moving contact, the moving contact is inserted into the static contact, the connection between the moving contact and the static contact can be achieved, the operation is very simple, the connection stress caused by the cable trend can be eliminated, and the.

Preferably, a rotating cavity is arranged on the bottom surface of the supporting plate, and a rotating ring positioned in the rotating cavity is arranged on the lifting screw rod. Be provided with on the bottom surface of backup pad and rotate the chamber, be provided with the change that is located to rotate the intracavity on the lifting screw, can drive the change and rotate at the rotation intracavity when the lifting screw is rotatory to drive the backup pad simultaneously and reciprocate.

Preferably, still including setting up the stabilising arrangement on the mount, stabilising arrangement including stablizing the casing, stablize the casing in be provided with the cavity, the cavity sliding connection have a piston, the piston on be provided with and run through to stablizing the outside bracing piece of casing, the bracing piece keep away from the one end of piston and support in the backup pad, the bottom surface of piston and cavity between be connected through buffer spring. Still including setting up the stabilising arrangement on the mount, stabilising arrangement is including stabilizing the casing, it fixes on the mount to stabilize the casing, be provided with the cavity in the stabilizing casing, sliding connection has the piston in the cavity, be provided with on the piston and run through to the bracing piece outside stabilizing the casing, the one end of keeping away from the piston of bracing piece supports in the backup pad, be connected through buffer spring between the bottom surface of piston and cavity, when the staff will dismantle high tension cable, the staff rotates the lifting screw, thereby make lifting screw move down and drive high tension cable downstream simultaneously, thereby make high tension cable and inlet wire high tension bushing disconnection, can support on the bracing piece when the backup pad is removing, because buffer spring has elasticity, consequently stabilising arrangement's design can reduce the vibration when the backup pad removes, thereby improve stability.

Preferably, one side of the inner hoop body, which is close to the high-voltage cable, is provided with a sealing strip made of an elastic material, an expansion cavity is arranged in the sealing strip, an air outlet hole communicated with the cavity is formed in the lower portion of the stabilizing shell, an air guide pipe is connected to the air outlet hole, and one end, far away from the air outlet hole, of the air guide pipe is communicated to the expansion cavity. One side of the inner hoop body that is close to high tension cable is provided with the sealing strip of making by elastic material, be provided with the inflation chamber in the sealing strip, the below of stabilizing the casing is provided with the venthole of intercommunication cavity, be connected with the air duct on the venthole, the one end of keeping away from the venthole of air duct communicates to the inflation chamber, when the backup pad supports on the bracing piece and drives the bracing piece and move down, the bracing piece drives and moves behind the piston compression buffer spring, the gas of intracavity gets into the inflation intracavity along the air duct after this time and space can be compressed, thereby make the tight high tension cable of clamp after the sealing strip inflation, stability when finally making clamping device drive high tension.

Preferably, a handle is arranged at one end of the lifting screw rod, which is far away from the supporting plate. The one end of lifting screw who keeps away from the backup pad is provided with the handle, and the staff operation of being convenient for is operated in the setting of handle.

Preferably, a support porcelain bottle for supporting the conductive plate is arranged on the rectifier transformer main body. Be provided with the pillar vase that is used for supporting the current conducting plate in the rectifier transformer main part, the setting of pillar vase can play stable effectual supporting role to the current conducting plate to improve the security.

Preferably, the sealing strip is made of rubber material. The sealing strip is made of rubber materials, so that the rubber materials are good in insulativity, low in cost, good in elasticity and long in service life.

Therefore, the plug-in rectifier transformer and high-voltage cable connecting device has the following advantages: the connecting device is simple to operate, original hard connection can be changed into quincunx contact plug-in connection, the connecting mode is not affected by cable running, ascending of a worker is not needed in the operation process, connection is reliable after operation is completed, operation efficiency is improved, equipment reliability is improved, and the whole device is high in stability during installation and disassembly.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a top view of the clamping device of the present invention.

FIG. 3 is a cross-sectional view of the stabilization device of the present invention.

Illustration of the drawings: 1-rectifier transformer body, 2-incoming line high-voltage bushing, 3-tulip contact, 4-swivel, 5-rotating cavity, 6-support plate, 7-clamping device, 8-stabilizing device, 9-air duct, 10-fixing frame, 11-high-voltage cable, 12-lifting screw, 13-prop porcelain bottle, 14-conducting plate, 15-outer hoop body, 16-fastening bolt, 17-inner hoop body, 18-expansion cavity, 19-sealing strip, 20-support rod, 21-cavity, 22-air outlet, 23-buffer spring, 24-piston, 25-stabilizing shell and 26-handle.

Detailed Description

The technical scheme of the invention is further specifically described by the following embodiments and the accompanying drawings.