CN114012638B

CN114012638B - Cylindrical power connector disassembling device and method

Info

Publication number: CN114012638B
Application number: CN202111335760.4A
Authority: CN
Inventors: 胡俊祥; 赵龙; 邵越; 唐建坤
Original assignee: CRRC Changchun Railway Vehicles Co Ltd
Current assignee: CRRC Changchun Railway Vehicles Co Ltd
Priority date: 2021-11-12
Filing date: 2021-11-12
Publication date: 2023-04-25
Anticipated expiration: 2041-11-12
Also published as: CN114012638A

Abstract

The invention discloses a cylindrical power connector disassembling device, which belongs to the field of cylindrical power connector disassembling tools, and is provided with a sleeve which can be sleeved outside an insulating assembly and is provided with an opening at one end, a driving member which is in threaded connection with the sleeve, and a needle withdrawing sleeve which is sleeved outside a contact needle and is used for driving a needle withdrawing prevention structure to be folded, wherein the needle withdrawing sleeve is provided with a push rod which is in sliding connection with the driving member, an expansion body which can deform after being extruded by the driving member is arranged in the side wall of the sleeve, and a channel which releases the expansion body and is communicated with the interior of the sleeve is formed in the inner wall of the sleeve, so that the expansion body deforms to extrude an insulating assembly and provides friction force to enable the insulating assembly and the sleeve to synchronously displace.

Description

Cylindrical power connector disassembling device and method

Technical Field

The invention relates to the technical field of columnar power connector disassembling tools, in particular to a columnar power connector disassembling device and a columnar power connector disassembling method.

Background

The columnar power connector is widely applied to rail transit vehicles gradually with the advantage of convenience in connection operation, and mainly comprises a shell, an insulating assembly, a contact pin with an anti-withdrawal structure and a clamp spring ring, wherein the contact pin and the clamp spring ring are used along with long-time high-strength running of the vehicles, and the insulating assembly in the columnar power connector needs to be replaced and maintained;

at present, according to the self structure of the columnar power connector, the fastening joint at the rear end of the connector is released firstly, then the contact pin with the cable is withdrawn from the rear end of the connector by using a needle withdrawing tool, then the connector is disassembled to replace an insulating assembly, and the assembly and the fastening are required to be performed again after the replacement, however, the completion of the work needs to have enough operation space, and because the columnar power connector has other parts at the actual space position of the vehicle towards the lower part and the rear part, the shielding part can be completely removed according to the conventional replacement mode, thereby causing the rapid increase of the workload and the low operation efficiency;

accordingly, there is a need for a cylindrical power connector disassembly device to be developed by those skilled in the art based on the above-mentioned problems.

Disclosure of Invention

The invention aims to overcome the defects of the prior art, and provides a cylindrical power connector disassembling device which utilizes the open space at the front end of a cylindrical power connector to directly disassemble and replace an insulating assembly in the cylindrical power connector, and is implemented under the condition that a fastening joint at the rear end of the connector and a contact pin with a cable are not disassembled, so that a large amount of disassembly of shielding components is avoided, and the operation efficiency is improved.

In order to achieve the above object, the present invention provides the following technical solutions:

the invention discloses a cylindrical power connector disassembling device, which comprises:

the sleeve is sleeved outside the insulating assembly, one end of the sleeve is provided with an opening, the sleeve is in threaded connection with the driving member, the needle withdrawing sleeve is sleeved outside the contact pin to drive the contact pin to withdraw from the structure, the needle withdrawing sleeve is provided with a push rod slidably connected with the driving member, an expansion body capable of deforming after being extruded by the driving member is arranged in the side wall of the sleeve, and a channel for releasing the expansion body and communicating with the inside of the sleeve is formed in the inner wall of the sleeve, so that the expansion body deforms to extrude the insulating assembly, and friction force is provided to enable the insulating assembly to displace synchronously with the sleeve.

Further, the driving member comprises a driving rod and a pressing cover which is rotationally connected with the driving rod and used for pressing the expansion body, the pressing cover is arranged inside the sleeve, the driving rod is sleeved outside the ejector rod, and the outer wall of the driving rod is in threaded connection with the sleeve.

Further, the length of the ejector rod is greater than that of the driving rod, and the driving rod and the ejector rod are exposed out of the outer end of the sleeve and are provided with handle parts.

Further, the drive rod has a stop at an end thereof remote from the handle for blocking the compression cap from exiting the drive rod.

Further, the driving rod is far away from the handle end and is in threaded connection with a nut, and the nut is the stop.

Further, the expansion body is a rubber ring made of rubber.

Further, the inner wall of the sleeve is of a double-layer structure, the inner wall of the sleeve, which is positioned at the opening end, is provided with the channel, the sleeve is far away from the opening end, and a top cover can be detachably connected with the sleeve, and the top cover is in threaded connection with the driving component.

Further, the top cover is in threaded connection with the sleeve, and a locking structure is connected between the top cover and the sleeve and used for blocking the top cover from rotating and displacing.

Further, the locking structure is a jackscrew connected between the top cover and the sleeve.

The invention discloses a cylindrical power connector disassembling method, which uses the cylindrical power connector disassembling device;

the method comprises the following steps:

step one: a sleeve enters the connector shell from the front end of the connector shell and is sleeved outside the insulating assembly, the sleeve is in propping contact with the annular platform outside the insulating assembly, the needle withdrawing sleeve is sleeved outside the contact pin, and the ejector rod is pressed to drive the needle withdrawing sleeve to extrude the anti-withdrawing structure of the contact pin to be folded;

step two: a rotary driving member presses the expansion body, the expansion body is formed between the outer wall of the filling sleeve and the insulation assembly, and the insulation assembly and the sleeve are integrated;

step three: the sleeve is pulled axially along the connector housing, and the insulation assembly is moved synchronously along with the sleeve to disengage from the housing and the pin.

In the technical scheme, the cylindrical power connector disassembling device and the cylindrical power connector disassembling method provided by the invention have the beneficial effects that:

compared with the prior art, the cylindrical power connector disassembling device and the cylindrical power connector disassembling method fully utilize the structural characteristics of the cylindrical power connector, enable the disassembling device to form effective clamping of the insulating assembly through the expansion body, directly take out the insulating assembly from the front end of the cylindrical power connector after the insulating assembly and the contact pins are unlocked, optimize the method for replacing and maintaining the insulating assembly in the cylindrical power connector, reduce the operation links and quality risks of reassembling and fastening the connector due to replacement and maintenance of the insulating assembly after the contact pins are withdrawn from the rear end, completely avoid the requirement of disassembling a large number of shielding parts caused by limitation of operation space, promote the improvement of operation efficiency and product quality, avoid a large number of disassembling works, and are convenient to replace and high in operation efficiency.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings may be obtained according to these drawings for a person having ordinary skill in the art.

FIG. 1 is a schematic diagram of a prismatic power connector;

FIG. 2 is a schematic illustration of a cylindrical power connector disassembly apparatus according to the present disclosure;

fig. 3 is a schematic structural view of a disassembled insulating assembly of a cylindrical power connector disassembling device disclosed by the invention.

Reference numerals illustrate:

1. a sleeve; 101. a channel; 2. an expansion body; 3. a top cover; 4. a pressing cover; 5. a driving rod; 6. a nut; 7. a needle withdrawing sleeve; 8. a push rod; 9. a jackscrew;

the column power connector reference numerals;

1001. a connector housing; 1002. an insulating assembly; 1003. a contact pin; 1004. a snap ring.

Detailed Description

In order to make the technical scheme of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings.

See fig. 1;

in the prior art, the columnar power connector comprises a connector housing 1001, an insulating assembly 1002 arranged in the connector housing 101, a contact pin 1003 arranged in the insulating assembly 1002 and connected with a cable, wherein an anti-withdrawal structure arranged outside the contact pin 1003 is clamped with the insulating assembly 1002, the lower part of an annular platform outside the insulating assembly 1002 is propped against the connector housing 1001, a clamping spring ring 1004 is arranged on the upper part of the annular platform outside the insulating assembly 1002, the clamping spring ring 1004 can be picked out from the outside of the columnar power connector before disassembly, and no special explanation is made because the picked clamping spring ring 1004 is not in direct relation with a columnar power connector disassembling device provided by the invention, but the contact pin 1003 and the insulating assembly 1002 are still in a locking state after the clamping spring ring 1004 is picked out, and the contact pin 1003 is integrated with the cable through crimping, so that the contact pin 1003 is restrained by the cable can be separated from the connector housing 1001 together with different insulating assemblies 1002;

see fig. 2, 3;

the invention provides a column power connector disassembling device, which is implemented under the condition of not disassembling a column power connector rear end fastening joint and a contact pin with a cable, thereby avoiding a large amount of disassembly of shielding components, and comprises:

the sleeve 1 which can be sleeved outside the insulating assembly 1002 and is provided with an opening at one end, a driving component which is in threaded connection with the sleeve 1, and a needle withdrawing sleeve 7 which is sleeved outside the contact pin 1003 and is used for driving the contact pin 1003 to retract in a retracting structure, wherein the needle withdrawing sleeve 7 is provided with a push rod 8 which is in sliding connection with the driving component, an expansion body 2 which can be deformed after being extruded by the driving component is arranged in the side wall of the sleeve 1, and a channel 101 which is used for releasing the expansion body 2 and is communicated with the inside of the sleeve 1 is formed in the inner wall of the sleeve 1, so that the expansion body 2 deforms to extrude the insulating assembly 1002, and friction force is provided to enable the insulating assembly 1002 and the sleeve 1 to synchronously displace.

The device realizes that the insulation component inside the columnar power connector is directly disassembled and replaced by utilizing the open space at the front end of the columnar power connector, as shown in fig. 3, when the device is used, the sleeve 1 is sleeved outside the insulation component 1002 from the front end of the connector, the needle withdrawing sleeve 7 is sleeved outside the contact pin 1003, the ejector rod 8 of the needle withdrawing sleeve 7 is independently operated, the needle withdrawing sleeve 7 is driven to displace to enable the contact pin 1003 to fold towards the axial direction of the contact pin 1003, and then the contact pin 1003 and the insulation component 1002 are unlocked;

after the contact pin 1003 is unlocked with the insulation component 1002, the driving member is operated, the expansion body 2 extruded by the driving member is deformed after being extruded, and the expansion body 2 overflows from the channel 101 formed in the inner wall of the sleeve 1, so that a gap between the outer wall of the sleeve 1 and the insulation component 1002 is filled, preferably, the expansion body 2 is a rubber ring made of rubber, which is beneficial to increasing friction force between the expansion body 2 and the insulation component 1002, and preventing sliding displacement between the expansion body 2 and the insulation component 1002, so that when the sleeve 1 is pulled towards the front end of the connector, the insulation component 1002 can be synchronously displaced with the sleeve 1, and the insulation component 1002 can be brought out, so that the insulation component 1002 is disassembled from the front end of the connector, the operation is simple and convenient, the operation efficiency is high, the maintenance efficiency is beneficial to be improved, and the production cost is saved;

see fig. 2;

preferably, the driving member comprises a driving rod 5 and a pressing cover 4 which is rotationally connected with the driving rod 5 and is used for pressing the expansion body 2, the pressing cover 4 is arranged inside the sleeve 1, the driving rod 5 is sleeved outside the ejector rod 8, and the outer wall of the driving rod 5 is in threaded connection with the sleeve 1.

Specifically, in this structure, the actuating member has compresses tightly lid 4 and actuating lever 5, compresses tightly the lid 4 and installs inside sleeve 1, actuating lever 5 end and compresses tightly lid 4 swivelling joint, actuating lever 5 and sleeve 1 roof threaded connection, and actuating lever 5 inside has seted up the through-hole that ejector pin 8 can pass, through-hole and ejector pin 8 sliding connection, and preferably, the length of ejector pin 8 is greater than the length of actuating lever 5, and actuating lever 5 and ejector pin 8 all have the stalk portion at sleeve 1 outer end. When the device is used on the outer wall of the sleeve 1, the handle of the push rod 8 is pushed to drive the needle withdrawing sleeve 7 to displace, the handle of the drive rod 5 is rotated clockwise to drive the compression cover 4 to displace and squeeze the expansion body 2, and the handle of the drive rod 5 is rotated anticlockwise to drive the compression cover 4 to be far away from the expansion body 2, so that the device is simple to operate and convenient to use;

preferably, the end of the driving rod 5 far away from the handle is provided with a stop, and the pressing cover 4 is blocked by the stop, so that the pressing cover 4 is prevented from being separated from the driving rod 5 when the handle of the driving rod 5 is rotated anticlockwise to drive the pressing cover 4 to be far away from the expansion body 2. Specifically, the end of the driving rod 5 far away from the handle is in threaded connection with a nut 6, and the nut 6 is a stop. The structure is simple, the manufacture is convenient, and the cost is low;

see fig. 2;

preferably, the inner wall of the sleeve 1 is of a double-layer structure, the inner wall of the sleeve 1 at the opening end is provided with a channel 101, the sleeve 1 is far away from the opening end and can be detachably connected with a top cover 3, and the top cover 3 is in threaded connection with the driving member. That is to say, the top cover 3 is the top wall of the sleeve 1, the middle part of the top cover 3 is provided with a threaded through hole, and the top cover is in threaded connection with the driving rod 5 of the driving component through the threaded through hole;

preferably, the top cover 3 is in threaded connection with the sleeve 1, and a locking structure is connected between the top cover 3 and the sleeve 1 for blocking the rotational displacement of the top cover 3. When the drive rod 5 is prevented from rotating, the top cover 3 follows the drive rod 5 to rotate, and preferably the locking structure is a jackscrew 9 connected between the top cover 3 and the sleeve 1. Specifically, when the top cover 3 is connected with the inner wall of the sleeve 1 through external threads, the sleeve 1 is provided with threaded holes, the jackscrew 9 is in threaded connection with the side wall of the sleeve 1, the tail end of the jackscrew 9 is in propping contact with the side wall of the top cover 3, or the side wall of the top cover 3 is provided with a through hole, the jackscrew 9 can extend into the through hole of the side wall of the top cover 3 to block the rotation displacement of the top cover 3, of course, the top cover 3 can also be in threaded connection with the outer wall of the sleeve 1 through internal threads, and the jackscrew 9 is in threaded connection with the top cover 3 and is matched with the through hole of the side wall of the sleeve 1 after being in propping contact with the side wall of the sleeve 1;

see fig. 3;

the method comprises the following steps;

step one: sleeve 1 enters connector housing 1001 from the front end of connector housing 1001 and is sleeved outside insulating assembly 1002, sleeve 1 is in contact with the annular platform outside insulating assembly 1002, needle withdrawing sleeve 7 is sleeved outside contact pin 1003, and push rod 8 is used for driving needle withdrawing sleeve 7 to squeeze the anti-withdrawing structure of contact pin 1003 to be folded;

specifically, the needle withdrawing sleeve 7 is arranged between the contact pin 1003 and the insulation component 1002, the sleeve 1 is arranged between the insulation component 1002 and the connector housing 1001, the sleeve 1 is pushed in until the sleeve cannot advance, at the moment, the sleeve 1 is propped against the annular platform outside the insulation component 1002, meanwhile, the ejector rod 8 is pushed in, the ejector rod 8 drives the needle withdrawing sleeve 7, and the tail end of the needle withdrawing sleeve 7 presses the withdrawing prevention structure of the contact pin 1003 to retract, so that the contact pin 1003 is unlocked from the insulation component;

step two: the rotary driving component extrudes the expansion body 2, and the expansion body 2 deforms and fills between the outer wall of the sleeve 1 and the insulation assembly 1002, so that the insulation assembly 1002 and the sleeve 1 are integrated;

specifically, the driving rod 5 of the driving member is rotated clockwise, the driving rod 5 pushes the compression cover 4 to squeeze the expansion body 2, the expansion body 2 deforms to overflow from the channel of the sleeve 1 to fill the gap between the insulating assembly 1002 and the sleeve 1, so that the insulating assembly 1002 and the sleeve 1 are integrated to realize tensioning connection, of course, the insulating assembly 1002 and the sleeve 1 can be locked into an integrated body at first, and then the contact pin 1003 and the insulating assembly are unlocked through the needle withdrawing sleeve 7, and the expansion body is selected according to the use requirement;

step three: the sleeve 1 is pulled axially along the connector housing 1001 and the insulation assembly 1002 is synchronously displaced away from the housing and pins 1003 following the sleeve 1. That is to say, the driving rod 5 is pulled outwards to drive the ejector rod 8, at this time, the pin 1003 is restrained by the cable and kept still, the insulating component 1002 and the pin 1003 are unlocked, and the expansion body 2 and the sleeve 1 are simultaneously separated from the connector housing 1001 and the pin 1003 under the action of the pulling force of the driving rod 5 to complete the disassembly;

the driving rod 5 rotates anticlockwise to generate relative motion with the sleeve 1, the compression cover 4 is driven to release the expansion body 2, after the expansion body 2 is restored, a gap between the insulating assembly 1002 and the sleeve 1 appears again, and the insulating assembly 1002 is separated from the sleeve 1.

After replacement and maintenance, the insulation assembly 1002 is pushed into the bottom from the middle gaps of the connector housing 1001 and the contact pin 1003, so that the insulation assembly 1002 and the contact pin 1003 are locked again, and then the snap ring 1004 is installed back to the original position, so that the insulation assembly 1002 and the connector housing 1001 form stable limit, and the whole operation process is completed.

In the technical scheme, the invention provides the cylindrical power connector disassembling device and the cylindrical power connector disassembling method;

the beneficial effects are that:

While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that modifications may be made to the described embodiments in various different ways without departing from the spirit and scope of the invention. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive of the scope of the invention, which is defined by the appended claims.

Claims

1. A column power connector disassembly device, comprising:

the device comprises a sleeve (1) which can be sleeved outside an insulating assembly (1002) and is provided with an opening at one end, a driving component which is in threaded connection with the sleeve (1), and a needle withdrawing sleeve (7) which is sleeved outside a contact pin (1003) and drives the needle withdrawing prevention structure of the contact pin (1003) to be folded, wherein the needle withdrawing sleeve (7) is provided with a push rod (8) which is in sliding connection with the driving component, an expansion body (2) which can be deformed after being extruded by the driving component is arranged in the side wall of the sleeve (1), and a channel (101) which releases the expansion body (2) and is communicated with the inside of the sleeve (1) is formed in the inner wall of the sleeve (1), so that the expansion body (2) deforms to extrude the insulating assembly (1002) and provides friction force to enable the insulating assembly (1002) to synchronously displace with the sleeve (1);

the driving member comprises a driving rod (5) and a pressing cover (4) which is rotationally connected with the driving rod (5) and used for pressing the expansion body (2), the pressing cover (4) is arranged inside the sleeve (1), the driving rod (5) is sleeved outside the ejector rod (8), and the outer wall of the driving rod (5) is in threaded connection with the sleeve (1).

2. A column power connector disassembly device according to claim 1, wherein;

the length of the ejector rod (8) is greater than that of the driving rod (5), and the driving rod (5) and the ejector rod (8) are exposed out of the outer end of the sleeve (1) and are provided with handle parts.

3. A column power connector disassembly device according to claim 2, wherein;

the end of the driving rod (5) far away from the handle part is provided with a stop for blocking the pressing cover (4) from being separated from the driving rod (5).

4. A column power connector disassembly device according to claim 3, wherein;

the driving rod (5) is far away from the handle end and is in threaded connection with a nut (6), and the nut (6) is the stop.

5. A column power connector disassembly device according to claim 1, wherein;

the expansion body (2) is a rubber ring made of rubber.

6. A column power connector disassembly device according to claim 1, wherein;

the inner wall of the sleeve (1) is of a double-layer structure, the inner wall of the sleeve (1) positioned at the opening end is provided with the channel (101), the sleeve (1) is far away from the opening end, a top cover (3) can be detachably connected with the sleeve, and the top cover (3) is in threaded connection with the driving component.

7. The column power connector disassembly of claim 6, wherein;

the top cover (3) is in threaded connection with the sleeve (1), and a locking structure is connected between the top cover (3) and the sleeve (1) and used for blocking the rotation displacement of the top cover (3).

8. The column power connector disassembly of claim 7, wherein;

the locking structure is a jackscrew (9) connected between the top cover (3) and the sleeve (1).

9. A cylindrical power connector disassembly method using a cylindrical power connector disassembly device according to any one of claims 1 to 8, characterized in that;

the method comprises the following steps;

step one: the sleeve (1) enters the connector housing (1001) from the front end of the connector housing (1001) and is sleeved outside the insulation assembly (1002), the sleeve (1) is in abutting contact with an annular platform outside the insulation assembly (1002), the needle withdrawing sleeve (7) is sleeved outside the contact pin (1003), and the ejector rod (8) is pressed to drive the needle withdrawing sleeve (7) to extrude an anti-withdrawing structure of the contact pin (1003) to be folded;

step two: a rotary driving member presses the expansion body (2), and the expansion body (2) deforms and fills between the outer wall of the sleeve (1) and the insulation assembly (1002), so that the insulation assembly (1002) and the sleeve (1) are integrated;

step three: the sleeve (1) is pulled axially along the connector housing (1001), and the insulation assembly (1002) moves synchronously along with the sleeve (1) and is separated from the housing and the pin (1003).