CN201638769U - Moving arcing contact and special tool - Google Patents
Moving arcing contact and special tool Download PDFInfo
- Publication number
- CN201638769U CN201638769U CN2009202703222U CN200920270322U CN201638769U CN 201638769 U CN201638769 U CN 201638769U CN 2009202703222 U CN2009202703222 U CN 2009202703222U CN 200920270322 U CN200920270322 U CN 200920270322U CN 201638769 U CN201638769 U CN 201638769U
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- CN
- China
- Prior art keywords
- contact
- moving arcing
- screw thread
- moving
- arcing contact
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model discloses a moving arcing contact which comprises a tubular contact body, wherein the external periphery surface of one end of the contact body is provided with a contact thread fixedly connected with the moving contact; the contact body on the root part of the contact thread is provided with an externally protruded stop block; the internal hole wall of the contact body is provided with a frustum-shaped reduced section of which the smaller end faces the contact thread; and the radial external surface of the stop block is provided with a stop thread in the same rotating direction of the contact thread. The utility model also discloses a special tool for installing the moving arcing contact. When the moving arcing contact provided with the stop thread is matched with the special tool for installation, the moving arcing contact is screwed on a moving contact by compressing the friction between the butting head on the end part of a mandril and the frustum-shaped reduced section of the moving arcing contact so as to ensure non-deformation of a stylus of the moving contact, improve the installation quality of the moving contact and improve the opening and closing performance of a circuit breake.
Description
Technical field
The utility model relates to a kind of moving arcing contact, and particularly a kind of circuit breaker moving arcing contact also provides a kind of special tooling that is used to install this moving arcing contact simultaneously.
Background technology
The circuit breaker moving arcing contact plays a part the carrying Short-Circuit High Current when circuit breaker cut-offs fault current, its assembly quality will directly influence the break performance of circuit breaker, need especially to guarantee that the fingertip at moving arcing contact top is indeformable.The installation of moving arcing contact is at present adopted directly and is installed, as shown in Figure 1, moving arcing contact comprises the contact body 3 of tubulose, the outer surface of these contact body 3 one ends is provided with and is used for the contact screw thread 4 of fixedlying connected with moving contact 2, the contact body of these contact screw thread 4 roots is provided with the block 1 of evagination, the inner hole wall of contact body is provided with truncated cone-shaped reducing section 5, and the osculum end of this reducing section 5 is towards contact screw thread 4, and the top of described contact body is the tubulose fingertip 6 of moving arcing contact.When moving arcing contact is installed, at first moving arcing contact is screwed in the screwed hole at moving contact top, and then it is tightened.But when moving arcing contact is screwed in the screwed hole, have only the fingertip of moving arcing contact to stretch out moving contact, because the fingertip wall of moving arcing contact is thinner, if adopting general fastened tools tightens, the clamping force that then is applied on the moving arcing contact fingertip outer wall need increase along with screwing tightly and constantly of moving arcing contact, cause the distortion of moving arcing contact fingertip easily, thereby influence the break performance of circuit breaker.
The utility model content
The purpose of this utility model provides the frock that the circuit breaker moving arcing contact is installed in high being used to of a kind of assembly quality, prevents the distortion of moving arcing contact fingertip in installation process.
Another purpose of the present utility model provides a kind of special tooling that moving arcing contact is installed.
In order to realize above purpose, the technical scheme that the utility model moving arcing contact is adopted is: a kind of moving arcing contact, the contact body that comprises tubulose, the outer peripheral face of this contact body one end is provided with and is used for the contact screw thread of fixedlying connected with moving contact, the contact body of this contact thread root is provided with the block of evagination, the inner hole wall of contact body is provided with truncated cone-shaped reducing section, the osculum end of this reducing section is towards the contact screw thread, and the radially-outer surface of described block is provided with the retaining screw thread with the identical direction of rotation of described contact screw thread.
The technical scheme that special tooling of the present utility model adopted is: a kind of special tooling that is used to install moving arcing contact comprises compressing push rod and retaining cover that this periphery that compresses push rod is provided with the push rod screw thread; Described retaining puts the push rod screw thread that is respectively equipped with and compresses push rod and is used for last screw thread and following screw thread with the same direction of rotation of the retaining threaded engagement of moving arcing contact, describedly compress a end that push rod inserts the retaining cover and be provided with and replace head, this is replaced head and is used for stretching into moving arcing contact cooperates with its truncated cone-shaped reducing section and replace when moving arcing contact is installed.
Described retaining cover is to be made of the end cap that is used to hold the tubulose spacer shell of moving arcing contact and be detachably connected on spacer shell one end, and the described screw thread of going up is located at the end cap center, and described screw thread down is located at the inboard of spacer shell away from end cap one end opening place.
The described push rod that compresses is provided with away from an end of replacing head and is used for the joint that cooperates with fastened tools.
The moving arcing contact that is provided with the retaining screw thread of the present utility model cooperates special tooling to install, by compress the push rod end replace the head and moving arcing contact in truncated cone-shaped reducing section between frictional force, moving arcing contact is tightened on the moving contact, since compress push rod to the point of application of moving arcing contact on the truncated cone-shaped reducing section of moving arcing contact, directly the moving arcing contact fingertip is not carried out the application of force, therefore tightening Shi Buhui at moving arcing contact impacts the moving arcing contact fingertip, promptly guaranteed the indeformable of moving arcing contact fingertip, improve the installation quality of moving arcing contact, thereby improved the break performance of circuit breaker.
Description of drawings
Fig. 1 is the scheme of installation of existing moving arcing contact;
Fig. 2 is the structural representation of moving arcing contact of the present utility model;
Fig. 3 is the structural representation of special tooling of the present utility model;
Fig. 4 is the scheme of installation of moving arcing contact of the present utility model.
Embodiment
Moving arcing contact of the present utility model comprises the contact body 13 of tubulose as shown in Figure 2, and the bottom outer peripheral face of contact body 13 is provided with contact screw thread 14, and this contact screw thread 14 is used for fixedlying connected with moving contact; On the contact body 13 of contact screw thread 14 roots, be integrally formed with the collar stop 11 that centers on the evagination that encloses outer Monday, this collar stop 11 guarantees that moving arcing contact can be tightened on the moving contact, be provided with on the outer peripheral face of collar stop 11 and be used for the retaining screw thread 17 that is threaded with special tooling, this retaining screw thread 17 is identical with the direction of rotation of contact screw thread 14; Be provided with truncated cone-shaped reducing section 15 on contact body 13 inner hole walls, the osculum end of this reducing section 15 is towards the contact hand of spiral; The upper end of contact body 13 is the tubulose fingertip 16 of moving arcing contact.
The special tooling that the utility model is used to install moving arcing contact as shown in Figure 3, comprise the tubulose spacer shell 21 that is used to hold moving arcing contact, the top of this spacer shell 21 is fixedly connected with end cap 23 by bolt 22, the center of this end cap 23 offers screwed hole 24, be installed with one in this screwed hole 24 and compress push rod 25, this outer peripheral face that compresses push rod 25 is provided with and is used for the push rod screw thread 26 that cooperates with screwed hole, axial length surpass the length of screwed hole 24, make compress push rod can be in screwed hole 24 rotary extension; The bottom that compresses push rod 25 is provided with replaces 27, and this is replaced 27 and cooperates for truncated cone-shaped and with truncated cone-shaped reducing section in the moving arcing contact and to replace; The top that compresses push rod 25 is provided with and is used for the joint 28 that cooperates with fastened tools, and joint of the present utility model adopts the hexagon joint that cooperates with common wrench; The opening part of described spacer shell 21 bottoms is provided with the transition screw thread 29 that is used for the retaining threaded engagement of moving arcing contact, this transition screw thread 29 is identical with the direction of rotation of screwed hole 24 inner threads, be special tooling of the present utility model when cooperating with moving arcing contact, the push rod screw thread 26, the retaining screw thread on the moving arcing contact that compress on the push rod 25 are identical with contact screw thread three's direction of rotation.
As shown in Figure 4,30 is moving contact among the figure during installation of moving arcing contact of the present utility model, and 10 is moving arcing contact of the present utility model, is described in detail below in conjunction with the installation method of Fig. 2,3 pairs of moving arcing contacts:
1, moving arcing contact 10 is screwed in the threaded mounting hole 31 at moving contact 30 tops;
2, spacer shell 21 is sleeved on the moving arcing contact 10, is connected with retaining screw thread 14 by transition screw thread 29;
3, will compress in the screwed hole 24 that push rod 25 screws in end caps 23, will compress replacing of push rod 25 again and 27 stretch in the tubulose fingertip 16 of moving arcing contact, and end cap 23 is fixedly connected on the top of spacer shell 21;
4, be rotated operation to compressing push rod 25, make and compress push rod 25 and stretch into moving arcing contact gradually and make and replace 27 and cooperate with truncated cone-shaped reducing section 15 and to replace, along with compressing constantly stretching into of push rod 25, replace 27 and the inwall of truncated cone-shaped reducing section 15 between frictional force increase gradually, cause moving arcing contact 10 together to rotate with compressing push rod 25, until moving arcing contact is tightened, finish the installation of moving arcing contact;
5, tighten moving arcing contact after, demounting bolt 22 separates spacer shell and takes off and compresses push rod and end cap with top cover, back out spacer shell from moving arcing contact then, do not exist moment between spacer shell and the moving arcing contact tightened this moment, so not backing out of spacer shell can influence moving arcing contact.
The retaining cover that special tooling of the present utility model also can adopt spacer shell to be connected with the top cover one, the hole screw thread of screwed hole 24 are the last screw thread of retaining cover, and transition screw thread 29 is the following screw thread of retaining cover; After moving arcing contact was tightened, the push rod that can be fixed and clamped rotated the retaining cover simultaneously it is broken away from moving arcing contact, realize special tooling and tighten after the separating of moving arcing contact.
Claims (4)
1. moving arcing contact, the contact body that comprises tubulose, the outer peripheral face of this contact body one end is provided with and is used for the contact screw thread of fixedlying connected with moving contact, the contact body of this contact thread root is provided with the block of evagination, the inner hole wall of contact body is provided with truncated cone-shaped reducing section, the osculum end of this reducing section is characterized in that towards the contact screw thread: the radially-outer surface of described block is provided with the retaining screw thread with the identical direction of rotation of described contact screw thread.
2. one kind is used to install the special tooling of moving arcing contact according to claim 1, it is characterized in that: comprise compressing push rod and retaining cover, this periphery that compresses push rod is provided with the push rod screw thread; Described retaining puts the push rod screw thread that is respectively equipped with and compresses push rod and is used for last screw thread and following screw thread with the same direction of rotation of the retaining threaded engagement of moving arcing contact, describedly compress a end that push rod inserts the retaining cover and be provided with and replace head, this is replaced head and is used for stretching into moving arcing contact cooperates with its truncated cone-shaped reducing section and replace when moving arcing contact is installed.
3. special tooling according to claim 2, it is characterized in that: described retaining cover is to be made of the end cap that is used to hold the tubulose spacer shell of moving arcing contact and be detachably connected on spacer shell one end, the described screw thread of going up is located at the end cap center, and described screw thread down is located at the inboard of spacer shell away from end cap one end opening place.
4. according to claim 2 or 3 described special toolings, it is characterized in that: the described push rod that compresses is provided with away from an end of replacing head and is used for the joint that cooperates with fastened tools.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202703222U CN201638769U (en) | 2009-11-30 | 2009-11-30 | Moving arcing contact and special tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202703222U CN201638769U (en) | 2009-11-30 | 2009-11-30 | Moving arcing contact and special tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201638769U true CN201638769U (en) | 2010-11-17 |
Family
ID=43083274
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202703222U Expired - Lifetime CN201638769U (en) | 2009-11-30 | 2009-11-30 | Moving arcing contact and special tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201638769U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103855636A (en) * | 2014-03-31 | 2014-06-11 | 国家电网公司 | Disconnecting switch moving contact disassembling tool |
| CN111199841A (en) * | 2018-11-16 | 2020-05-26 | 平高集团有限公司 | Moving arc contact assembling and disassembling tool for circuit breaker |
-
2009
- 2009-11-30 CN CN2009202703222U patent/CN201638769U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103855636A (en) * | 2014-03-31 | 2014-06-11 | 国家电网公司 | Disconnecting switch moving contact disassembling tool |
| CN103855636B (en) * | 2014-03-31 | 2016-05-25 | 国家电网公司 | Isolating switch moving contact dismantling device |
| CN111199841A (en) * | 2018-11-16 | 2020-05-26 | 平高集团有限公司 | Moving arc contact assembling and disassembling tool for circuit breaker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20101117 Effective date of abandoning: 20091130 |