CN203733702U - Novel high voltage vacuum circuit breaker contact spring transmission device with high reliability - Google Patents
Novel high voltage vacuum circuit breaker contact spring transmission device with high reliability Download PDFInfo
- Publication number
- CN203733702U CN203733702U CN201420050896.XU CN201420050896U CN203733702U CN 203733702 U CN203733702 U CN 203733702U CN 201420050896 U CN201420050896 U CN 201420050896U CN 203733702 U CN203733702 U CN 203733702U
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- China
- Prior art keywords
- guide rod
- contact spring
- transmission device
- transmission
- spring
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- Withdrawn - After Issue
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Abstract
A novel high voltage vacuum circuit breaker contact spring transmission device with high reliability comprises a transmission guide rod, a precompression atresia guide rod and a guide sleeve rod, wherein the precompression atresia guide rod is fixedly connected to the transmission guide rod; the guide sleeve rod sleeves an external portion of the precompression atresia guide rod, is slidingly cooperated with the precompression atresia guide rod and carries out limiting and guiding on the precompression atresia guide rod. The transmission guide rod is fixed to one end of the guide sleeve rod and a spring is fixed to the other end. The other end of the spring is fixed to the transmission guide rod or the precompression atresia guide rod. When a circuit breaker is in a closing state, the contact spring transmission device of the utility model provides circuit-breaker rated overtravel and rated contact end pressure. When the circuit breaker is an opening state, the contact spring transmission device provides a circuit breaker contact spring precompression amount. On an aspect of the structure, a pin structure which is widely used by the contact spring transmission device is abandoned so that mechanical reliability can be greatly increased.
Description
Technical field
The utility model belongs to high-pressure vacuum breaker technical field, is specifically related to a kind of high-tension Vacuum switch contact spring transmission device of high reliability.
Background technology
In high-pressure vacuum breaker, extensively adopt contact spring transmission device, its object is to improve the contact collision and the bounce that in breaker closing process, occur, and during in combined floodgate hold mode, provides its specified contact thrust at circuit breaker.The version that current domestic high-pressure vacuum breaker contact spring transmission device extensively adopts is pin shaft structure, adopts the contact spring transmission device of pin shaft structure, provides the contact that vacuum circuit-breaker is higher initial thrust.This device, in breaker open operation process, in the time that contact spring releases overtravel decrement, because bearing pin bears the effect of impact force, causes that circuit breaker repeatedly divides, closing operation rear pin shaft easily produces the phenomenons such as displacement, fatigue fracture, and causes that breaker operator lost efficacy.
Summary of the invention
The problem existing in order to solve above-mentioned prior art, the purpose of this utility model is to provide a kind of high-tension Vacuum switch contact spring transmission device of high reliability, structurally cancel the pin shaft structure that contact spring transmission device extensively adopts, can significantly improve its Mechanical Reliability.
For reaching above object, the utility model adopts following technical scheme:
A kind of high-tension Vacuum switch contact spring transmission device of high reliability, comprise transmission guide rod 1, the precommpression locking guide rod 3 being fixedly connected with transmission guide rod 1, be socketed in that precommpression locking guide rod 3 is outside and precommpression locking guide rod 3 is slidably matched and it is carried out to guiding loop bar 4 spacing and that lead, one end at guiding loop bar 4 is fixed with transmission guide rod 5, the other end is fixed with spring 2, and the other end of spring 2 is fixed on transmission guide rod 1 or precommpression locking guide rod 3.
Be provided with spring bumper cover 6 in the top and bottom of described spring 2.
Described transmission guide rod 1 and precommpression locking guide rod 3 adopt and are threaded.
Described guiding loop bar 4 and transmission guide rod 5 adopt and are threaded.
Compared to the prior art, the utlity model has following advantage:
1, cancel the pin shaft structure that contact spring transmission device extensively adopts, significantly improved high-pressure vacuum breaker reliability.This contact spring transmission device has been avoided because of the impact force that in higher pre-pressure of the spring and breaker open operation process, contact has just divided moment pin bearing to be subject to, and causes the displacement of circuit breaker multi-pass operation rear pin shaft and fatigue fracture etc., and then causes that breaker operator lost efficacy.
2, be convenient to install and safeguard, transmission guide rod 1 and precommpression locking guide rod 3 are fixedly connected, and guiding loop bar 4 is fixedly connected with transmission guide rod 5, precommpression locking guide rod 3 and 4 sliding contacts of guiding loop bar, this structure is convenient to install, and in the time breaking down in this device inside, is convenient to demolition and maintenance.
Brief description of the drawings
Fig. 1 is the high-tension Vacuum switch contact spring transmission structures schematic diagram of utility model high reliability.
Fig. 2 is the utility model transmission guide rod and the precommpression locking guide rod mode schematic diagram that is fixedly connected.
Fig. 3 is the utility model guiding loop bar and the transmission guide rod mode schematic diagram that is fixedly connected.
Fig. 4 is that the high-tension Vacuum switch contact spring transmission device of the utility model high reliability divides at circuit breaker, motion schematic diagram in closing operation process.
Embodiment
Below in conjunction with drawings and the specific embodiments, the utility model is described in further detail.
As shown in Figure 1, the high-tension Vacuum switch contact spring transmission device of a kind of high reliability of the utility model, comprise transmission guide rod 1, the precommpression locking guide rod 3 being fixedly connected with transmission guide rod 1, be socketed in that precommpression locking guide rod 3 is outside and precommpression locking guide rod 3 is slidably matched and it is carried out to guiding loop bar 4 spacing and that lead, one end at guiding loop bar 4 is fixed with transmission guide rod 5, the other end is fixed with spring 2, and the other end of spring 2 is fixed on transmission guide rod 1 or precommpression locking guide rod 3.
As preferred implementation of the present utility model, for spring 2 is better fixed, be provided with spring bumper cover 6 in the top and bottom of described spring 2.Spring bumper cover 6 applies precompression can to spring 2 simultaneously.
As shown in Figure 2, as preferred implementation of the present utility model, described transmission guide rod 1 and precommpression locking guide rod 3 adopt and are threaded.As shown in Figure 2 a, on transmission guide rod 1, have blind screw hole, on precommpression locking guide rod 3, with external screw thread, the two connects by threaded engagement; As shown in Figure 2 b, on precommpression locking guide rod 3, have internal thread through hole, on transmission guide rod 1, with external screw thread, the two connects by threaded engagement; As shown in Figure 2 c, on precommpression locking guide rod 3, have blind screw hole, on transmission guide rod 1, with external screw thread, the two connects by threaded engagement.Certainly, transmission guide rod 1 and precommpression locking guide rod 3 also can adopt other the mode that is fixedly connected with, its fixing means can adopt fastening nuts or other methods being fixedly connected with, on precommpression locking guide rod 3, can adopt and be convenient to that screw thread is fixed or other fixed form is convenient to the structural manufacturing process of installing, as side adopts symmetrical grooving or hexagonal structure etc.
As shown in Figure 3, as preferred implementation of the present utility model, described guiding loop bar 4 and transmission guide rod 5 adopt and are threaded.As shown in Figure 3 a, have screw thread at the endoporus periphery of guiding loop bar 4, on transmission guide rod 5, with external screw thread, the two connects by threaded engagement; As shown in Figure 3 b, have blind screw hole at transmission guide rod 5, on guiding loop bar 4, with external screw thread, the two connects by threaded engagement.Certainly, guiding loop bar 4 and transmission guide rod 5 also can adopt other the mode that is fixedly connected with, its fixing means can adopt fastening nuts or other methods being fixedly connected with, on compression locking guide rod 3 or transmission guide rod 5, can adopt and be convenient to that screw thread is fixed or other fixed form is convenient to the structural manufacturing process of installing, as side adopts symmetrical grooving or hexagonal structure etc.
Precommpression locking guide rod 3 and guiding loop bar 4 adopt has being slidably connected of spacing, guide function: precommpression locking guide rod 3 adopts with guiding loop bar 4 tolerance fit that meets relative sliding and guide function; Sliding contact surface can adopt the relative sliding assembly that adds oilless bushing assembly or other and meet guide function requirement, adopts the technique that meets relative sliding requirement, ensures the technical requirements such as sliding contact surface fineness.
Operation principle of the present utility model is: as shown in Figure 3, spring 2 provides contacts for vacuum-break switches precompression and combined floodgate overtravel with transmission guide rod 1, precommpression locking guide rod 3, guiding loop bar 4, transmission guide rod 5 and spring bumper cover 6 actings in conjunction: transmission guide rod 1 upper end connects with the moving conductive rod of high voltage vacuum interrupter, and transmission guide rod 5 lower ends connect with circuit breaker kinematic link assembly.In the time that circuit breaker carries out closing operation, the utility model contact spring transmission device is moved upward by mechanism's combined floodgate actuating force effect entirety, when moving contact movement travel reaches clearance between open contacts d
1time, the dynamic and static contact of circuit breaker, transmission guide rod 1 and 3 stop motions of precommpression locking guide rod, guiding loop bar 4 and transmission guide rod 5 continue to move upward, and are compressed into overtravel d to spring 2
2in time, stops, and making process finishes; In the time that circuit breaker carries out sub-switching operation, spring 2 discharges overtravel decrement d
2, guiding loop bar 4 is moved downward by spring 2 power and mechanism's separating brake actuating force with transmission guide rod 5, and the decrement discharging when spring 2 reaches overtravel d
2time, the dynamic and static contact of circuit breaker separates, and guiding loop bar 4 collides with precommpression locking guide rod 3 and joins with guiding loop bar 1 entirety and moves downward, when moving contact movement travel reaches clearance between open contacts d
1time, the stop motion of contact spring transmission device, separating brake process finishes.Can find out from the above-mentioned course of work: when circuit breaker is during in "on" position, the utility model contact spring transmission device provides the specified overtravel of circuit breaker and specified contact terminate pressure; When circuit breaker is during in gate-dividing state, this contact spring transmission device provides contact of breaker spring pre compressed magnitude.
Claims (4)
1. the high-tension Vacuum switch contact spring transmission device of a high reliability, it is characterized in that: comprise transmission guide rod (1), the precommpression locking guide rod (3) being fixedly connected with transmission guide rod (1), be socketed in that precommpression locking guide rod (3) is outside and precommpression locking guide rod (3) is slidably matched and it is carried out to guiding loop bar (4) spacing and that lead, one end at guiding loop bar (4) is fixed with transmission guide rod (5), the other end is fixed with spring (2), and the other end of spring (2) is fixed on transmission guide rod (1) or precommpression locking guide rod (3).
2. the high-tension Vacuum switch contact spring transmission device of a kind of high reliability according to claim 1, is characterized in that: be provided with spring bumper cover (6) in the top and bottom of described spring (2).
3. the high-tension Vacuum switch contact spring transmission device of a kind of high reliability according to claim 1, is characterized in that: described transmission guide rod (1) and precommpression locking guide rod (3) adopt and be threaded.
4. the high-tension Vacuum switch contact spring transmission device of a kind of high reliability according to claim 1, is characterized in that: described guiding loop bar (4) and transmission guide rod (5) adopt and be threaded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420050896.XU CN203733702U (en) | 2014-01-26 | 2014-01-26 | Novel high voltage vacuum circuit breaker contact spring transmission device with high reliability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420050896.XU CN203733702U (en) | 2014-01-26 | 2014-01-26 | Novel high voltage vacuum circuit breaker contact spring transmission device with high reliability |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203733702U true CN203733702U (en) | 2014-07-23 |
Family
ID=51203753
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420050896.XU Withdrawn - After Issue CN203733702U (en) | 2014-01-26 | 2014-01-26 | Novel high voltage vacuum circuit breaker contact spring transmission device with high reliability |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203733702U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103887108A (en) * | 2014-01-26 | 2014-06-25 | 西安交通大学 | High voltage vacuum circuit breaker contact spring transmission device with high reliability |
-
2014
- 2014-01-26 CN CN201420050896.XU patent/CN203733702U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103887108A (en) * | 2014-01-26 | 2014-06-25 | 西安交通大学 | High voltage vacuum circuit breaker contact spring transmission device with high reliability |
| CN103887108B (en) * | 2014-01-26 | 2016-08-17 | 西安交通大学 | A kind of high-pressure vacuum breaker contact spring actuating device of high reliability |
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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: 20140723 Effective date of abandoning: 20160817 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |