CN201532869U - Tripping, buffering and limiting device of operating mechanism - Google Patents
Tripping, buffering and limiting device of operating mechanism Download PDFInfo
- Publication number
- CN201532869U CN201532869U CN2009201987405U CN200920198740U CN201532869U CN 201532869 U CN201532869 U CN 201532869U CN 2009201987405 U CN2009201987405 U CN 2009201987405U CN 200920198740 U CN200920198740 U CN 200920198740U CN 201532869 U CN201532869 U CN 201532869U
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- extension spring
- buffer
- operating mechanism
- tension spring
- stroke
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- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The utility model relates to a tripping, buffering and limiting device of an operating mechanism of a high-voltage switch, which is designed for solving the technical problems that the existing similar product has a complex buffering and limiting structure, and the space utilization in a tension spring is not full. The technical points thereof are as follows: the tension spring of the device is internally provided with an independently-adjusting buffer and a tension spring thread joint; the stroke and the elasticity of the buffer are less than those of the tension spring. Namely the stroke of the buffer is not controlled by the stroke of the tension spring, and the stroke of a piston rod in the buffer is controlled by adjusting a bolt; and the stroke of the tension spring is controlled by the screwed position of the tension spring thread joint in the tension spring. The structural design fully utilizes the space in the tension spring, and independent adjustment is adopted among the buffer, the tension spring thread joint and the tension spring. The device has convenient adjustment for the buffer and the piston rod, has good stability and safety of the whole mechanical performance after being arranged at the operating mechanism, and is applicable to the buffering and limiting of the operating mechanism in the high-voltage switch and the improvement of the similar operating mechanism and the tension spring device.
Description
Technical field
The utility model relates to the operating mechanism of high-voltage switch gear, is a kind of operating mechanism splitting lock cushioning stopping means.
Background technology
At present, the operating mechanism that home sale is used for the power high voltage switch is a lot, and wherein the splitting lock cushioning device of operating mechanism generally has only the function of separating brake and buffering, and the buffering stroke be uncontrollable, tripping spring also is uncontrollable.Some operating mechanisms are provided with the splitting lock cushioning device that can regulate, but its regulative mode comparatively bothers, and generally do not have stopping means.If these operating mechanisms need limit function, also need in operating mechanism or splitting lock cushioning device, to increase a stopping means.This shows that the limit function improvement meeting of these splitting lock cushioning devices brings more inconvenience to operating mechanism.
For overcoming the problems referred to above, the ZL patent No. 94242868.4 as the Chinese patent literature publication, March 6 1996 Granted publication day, utility model patent title " vacuum circuit-breaker separating brake air buffer ", this buffer is made up of tripping spring, cylinder barrel (air buffer) and separating brake stopping means.The patent No. ZL200620055251.0 of Chinese patent literature publication for another example, March 14 2007 Granted publication day, utility model patent title " a kind of vacuum circuit-breaker " with the double buffering damping device, this circuit breaker comprises framework and is located at the buffer of base of frame that base of frame is provided with can be by the level 2 buffering device of buffering connecting lever driving.The patent No. ZL200720064390.4 of Chinese patent literature publication and for example, October 1 2008 Granted publication day, utility model patent title " the electric spring operating mechanism that is used for High-Voltage Electrical Appliances ", this electric spring operating mechanism comprise motor assembling, worm reducer assembling, spacing assembling, the assembling of combined floodgate oil bumper, the assembling of separating brake oil bumper of being equipped with in casing, the casing.But the separating brake in the said structure, buffering, spacing three are comparatively complicated, and uniformity is relatively poor, and buffering, spacing adjusting be inconvenience comparatively; Simultaneously, the loading and unloading of extension spring are inconvenience comparatively, and space utilization is not high.
Summary of the invention
The utility model purpose is a kind of operating mechanism splitting lock cushioning stopping means that integrates separating brake, buffering, limit function that provides to this area, make it solve existing like product buffering, position limiting structure complexity, the inadequate technical problem of space utilization in the extension spring.Its objective is and be achieved through the following technical solutions.
A kind of operating mechanism splitting lock cushioning stopping means, this device integrates separating brake, buffering, limit function, it comprises joint, extension spring link plate, extension spring, buffer, adjusting bolt, be provided with piston rod and back-moving spring in the buffer, joint is connected with the extension spring link plate by pin, regulate bolt in fixed head, above-mentioned buffer can adopt oil bumper, aerodynamic retarder or mechanical damping device.It is characterized in that being provided with in the described extension spring buffer and the extension spring nipple of independent regulation, buffer stroke and elastic force are less than the stroke and the elastic force of extension spring.Be the control that buffer stroke is not subjected to the extension spring stroke, buffer stroke is by regulating the stroke of bolt controller buffer inner piston rod; The Position Control that the stroke of extension spring then screws in extension spring by the extension spring nipple, this structural design have made full use of the space in the extension spring, difference independent regulation between buffer, extension spring nipple and the extension spring.Simultaneously, the operating mechanism that is provided with this device is when separating brake, and the energy that discharges during respectively to separating brake by extension spring, buffer absorbs, carry out when the extension spring separating brake being shunk by buffer spacing, extension spring buffering when finishing separating brake, spacing function.
Described buffer one end is provided with piston rod, is provided with back-moving spring in the cavity of this end, and the back-moving spring other end is connected with piston rod, and buffer absorbs the energy that operating mechanism discharges when the separating brake by back-moving spring.The external diameter of buffer is connected with the internal diameter of extension spring nipple, and buffer is regulated the position of buffer in extension spring by rotary buffer in the extension spring nipple.The other end of buffer is provided with the adjusting bolt, by regulating the draft gear travel after bolt locking is regulated.
The head of described piston rod is provided with ledge structure.The design of ledge structure can be played position-limiting action, can further facilitate again to absorb the energy that operating mechanism discharges when separating brake.
The external diameter of described extension spring nipple is provided with locking nut, further locks being connected between extension spring nipple and the extension spring by locking nut, has improved the extension spring stability of structure.
Extension spring one end in the above-mentioned operating mechanism splitting lock cushioning stopping means is provided with curling up of pitch, all the other for close around curl up, the end that curls up that is provided with pitch is connected with the extension spring link plate, be provided with close around curl up to hold and be connected with the external screw thread of extension spring nipple.Described extension spring link plate is provided with the installing hole with the same pitch of extension spring, and the slightly larger in diameter of installing hole is in the steel wire diameter of extension spring.The structure of above-mentioned extension spring is based on common spiral tension spring, and the end that curls up of pitch is fixed in the extension spring link plate in its structure, close around the end that curls up fixedly connected with the extension spring nipple, the loading and unloading of extension spring have been made things convenient for, improved production efficiency, saved installing component, its structural stability is good.
The utility model has made full use of the inner space of extension spring, buffer, piston rod are easy to adjust, it is good to be installed on behind the operating mechanism stability and the fail safe of overall mechanical properties, buffering when being applicable to operating mechanism separating brake in the high-voltage switch gear, spacing, ex hoc genus anne the improvement of operating mechanism and extension spring device.
Description of drawings
Fig. 1 is a part sectional structure schematic diagram of the present utility model, and arrow is subjected to force direction when closing a floodgate among the figure in operating mechanism.
Above figure number and title: 1, joint, 2, pin, 3, the extension spring link plate, 4, extension spring, 5, buffer, 6, the extension spring nipple, 7, locking nut, 8, fixed head, 9, regulate bolt, 10, piston rod, 11, back-moving spring.
Embodiment
Execution mode is in conjunction with the accompanying drawings to main fit of the present utility model, and the utility model uses in the high-voltage switch gear model is the operating mechanism of CT108KR and is example.
As shown in Figure 1, the body element of extension spring 4 is common spiral tension spring in the utility model, and extension spring one end is that curling up of a constant pitch arranged, its cocycle be close around the coiling mode.There is an end of pitch that extension spring link plate 3 is housed in extension spring, the extension spring link plate is provided with the installing hole the same with the extension spring pitch, the slightly larger in diameter of installing hole is in the steel wire diameter of extension spring, so that the installation nose end of extension spring link plate penetrates the steel wire of extension spring, and making extension spring be fixedly installed in the extension spring link plate, the other end steel wire of extension spring is close to be connected with extension spring nipple 6 around part.Before the extension spring nipple is installed, earlier extension spring nipple center is screwed in buffer 5, the afterbody of extension spring nipple screws in locking nut 7, and the other end that the buffer that installs and extension spring nipple are screwed in extension spring together screws until extension spring nipple and extension spring then.The bottom centre of buffer is provided with the deep hole of screw thread, and the adjusting bolt passes fixed head 8 and links to each other with buffer, and the main assembling process of this device can install.
It is that the operating mechanism of CT108KR is when using that the utility model is installed on the high-voltage switch gear model, joint 1 is subjected to pulling force upwards, and extension spring nipple in lower end is fixedly the time, and extension spring is drawn back, the extension spring link plate moves upward, and piston rod 10 is owing to the effect of buffer internal reset spring 11 is up pushed up piston rod.Because the stroke of extension spring is greater than the stroke of back-moving spring, piston rod can fully extend, and put in place by the effect of back-moving spring elastic force until piston rod, last piston rod and the separated attitude of extension spring link plate, and this moment, operating mechanism was in "on" position.Because do not need to use buffer under the "on" position, buffer does not influence the operation of operating mechanism in this process.
When the operating mechanism separating brake, extension spring releases energy and produce to shrink, and the extension spring link plate moves downward, and has just begun the extension spring link plate and has not still contacted with piston rod in the buffer, and the energy of extension spring all is used for separating brake, does not influence the motion of separating brake.But when extension spring moves to a certain section, operating mechanism is separating brake, but also be less than preposition, this moment, some elastic energy of extension spring and inertia energy and had certain movement velocity, and this energy can bring adverse influence to the separating brake of operating mechanism.Said process needs buffer that the unnecessary energy absorption of extension spring is fallen, and the movement velocity during separating brake lowers, with the requirement of satisfy high-voltage switch gear separating brake time stability and fail safe, i.e. separating brake " soft land ".At this moment, this buffer adopts oil bumper architectural characteristic just in time to satisfy this condition, makes high-voltage switch gear when separating brake, has slowed down, limited the decline of extension spring by piston rod, to the last steady land.According to above-mentioned operation principle, like product also had similar structures in the past, but this device has increased the function of regulating, and has reasonably utilized the inner space in the extension spring, and buffer and extension spring nipple are independent regulation simultaneously.
The concrete regulative mode of buffer and extension spring nipple is as follows: when the power of extension spring is big inadequately, make the starting point of extension spring toward descending by regulating bolt, this moment joint invariant position, the extension spring nipple is toward descending, increase the stroke and the initial tensile force of extension spring, reached the purpose of regulating the extension spring stroke.At this moment, buffer does not push up the lower edge of extension spring link plate, and screw-threaded engagement that can be by buffer and extension spring nipple is the lifting buffer up, is transferred to the position that needs until buffer, then the position by locking nut locking buffer.Promptly how many strokes extension spring transfers just now, and how many strokes buffer transfers up, and two strokes are corresponding one by one.Above-mentioned adjustment process keeps the extension spring stroke constant, has also reached the adjustable purpose of buffer simultaneously.Piston rod has limit function in the said process, at the head of piston rod ledge structure is arranged, and forces when descending in that head is stressed, and piston rod can not descend, and plays effect spacing, buffering when the operating mechanism separating brake.Because it is relatively independent that buffer and extension spring are regulated, mutually noninterfere, so buffer stroke (being the piston rod elongation) is not subjected to extension spring to elongate the control of stroke.
The utility model is under the immovable situation of extension spring Outside Dimensions, and buffer is positioned in the extension spring, for the limited volume of pull operation mechanism has won valuable space.This device is based on separating brake, and subsidiary have buffering and a spacing miscellaneous function, plays buffering, spacing effect when the operating mechanism separating brake.It demonstrates fully integrated theory, for producing and assembling has brought convenience, has saved material, has reduced number of spare parts, makes the operating mechanism outward appearance of having assembled this device comparatively compact, succinct.
Claims (6)
1. operating mechanism splitting lock cushioning stopping means, this device integrates separating brake, buffering, limit function, it comprises joint (1), extension spring link plate (3), extension spring (4), buffer (5), regulates bolt (9), be provided with piston rod (10) and back-moving spring (11) in the buffer, joint is connected with extension spring link plate (3) by pin (2), regulates bolt in fixed head (8); It is characterized in that being provided with in the described extension spring (4) buffer (5) and the extension spring nipple (6) of independent regulation, buffer stroke and elastic force are less than the stroke and the elastic force of extension spring.
2. according to the described operating mechanism splitting lock cushioning of claim 1 stopping means, it is characterized in that described buffer (5) one ends are provided with piston rod (10), be provided with back-moving spring (11) in the cavity of this end, the back-moving spring other end is connected with piston rod; The external diameter of buffer is connected with the internal diameter of extension spring nipple (6); The other end of buffer is provided with regulates bolt (9).
3. according to claim 1 or 2 described operating mechanism splitting lock cushioning stopping means, it is characterized in that the head of described piston rod (10) is provided with ledge structure.
4. according to claim 1 or 2 described operating mechanism splitting lock cushioning stopping means, it is characterized in that the external diameter of described extension spring nipple (6) is provided with locking nut (7).
5. according to the described operating mechanism splitting lock cushioning of claim 1 stopping means, it is characterized in that described extension spring (4) one ends are provided with curling up of pitch, all the other for close around curl up, the end that curls up that is provided with pitch is connected with extension spring link plate (3), be provided with close around curl up to hold and be connected with the external screw thread of extension spring nipple (6).
6. according to the described operating mechanism splitting lock cushioning of claim 5 stopping means, it is characterized in that described extension spring link plate (3) is provided with and the installing hole of the same pitch of extension spring (4), the slightly larger in diameter of installing hole is in the steel wire diameter of extension spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201987405U CN201532869U (en) | 2009-10-22 | 2009-10-22 | Tripping, buffering and limiting device of operating mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201987405U CN201532869U (en) | 2009-10-22 | 2009-10-22 | Tripping, buffering and limiting device of operating mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201532869U true CN201532869U (en) | 2010-07-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201987405U Expired - Fee Related CN201532869U (en) | 2009-10-22 | 2009-10-22 | Tripping, buffering and limiting device of operating mechanism |
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| Country | Link |
|---|---|
| CN (1) | CN201532869U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102636384A (en) * | 2012-04-16 | 2012-08-15 | 浙江旷达纺织机械有限公司 | Chassis of harness cord wire spring testing equipment |
-
2009
- 2009-10-22 CN CN2009201987405U patent/CN201532869U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102636384A (en) * | 2012-04-16 | 2012-08-15 | 浙江旷达纺织机械有限公司 | Chassis of harness cord wire spring testing equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100721 Termination date: 20181022 |