CN112700993A - Spring operating mechanism and plunger latch assembly device - Google Patents
Spring operating mechanism and plunger latch assembly device Download PDFInfo
- Publication number
- CN112700993A CN112700993A CN202011432295.1A CN202011432295A CN112700993A CN 112700993 A CN112700993 A CN 112700993A CN 202011432295 A CN202011432295 A CN 202011432295A CN 112700993 A CN112700993 A CN 112700993A
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- Prior art keywords
- latch
- shaft
- operating mechanism
- spring operating
- bearing
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- 230000007246 mechanism Effects 0.000 title claims abstract description 48
- 230000009471 action Effects 0.000 claims description 6
- 230000001960 triggered effect Effects 0.000 claims description 6
- 230000009467 reduction Effects 0.000 claims description 5
- 230000003213 activating effect Effects 0.000 claims 1
- 238000000034 method Methods 0.000 description 10
- 238000009434 installation Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 6
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 244000309464 bull Species 0.000 description 1
Images
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/20—Interlocking, locking, or latching mechanisms
- H01H9/24—Interlocking, locking, or latching mechanisms for interlocking two or more parts of the mechanism for operating contacts
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
- H01H3/38—Driving mechanisms, i.e. for transmitting driving force to the contacts using spring or other flexible shaft coupling
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
- H01H3/42—Driving mechanisms, i.e. for transmitting driving force to the contacts using cam or eccentric
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- Lock And Its Accessories (AREA)
Abstract
The invention relates to a spring operating mechanism and a plunger latch assembling device, wherein the spring operating mechanism comprises a rack, a plunger latch shaft and a plunger latch, the plunger latch is assembled on the plunger latch shaft in an interference manner, the spring operating mechanism also comprises a bearing, the bearing is arranged in a plunger latch shaft mounting hole, the inner ring of the bearing is arranged on the plunger latch shaft, the outer ring of the bearing is arranged on the rack, and the plunger latch shaft is in running fit with the plunger latch shaft mounting hole through the bearing; the locating sleeve is sleeved on the bolt shaft, one end of the locating sleeve is axially located with the bolt, and the other end of the locating sleeve is propped against the inner ring of the bearing. Compared with the fixed fit mode of screws and the like, the lock latch of the spring operating mechanism is positioned through the interference assembly and the positioning sleeve, the stability of the lock latch is higher, and the technical problem that the lock latch of the existing spring operating mechanism is poor in stability is solved.
Description
Technical Field
The invention relates to a spring operating mechanism and a lock latch assembling device.
Background
The reliability of the opening and closing system of the spring operating mechanism of the circuit breaker directly determines the stability of power transmission and use. The spring operating mechanism of the circuit breaker needs to meet set mechanical specific requirements in the test process, and the mechanical characteristics of the circuit breaker are determined by the assembling quality between the latch and the latch shaft matched with the latch, so that the circuit breaker needs to be ensured by a reliable method. The hasp passes through the fix with screw after with the assembly of hasp axle, and the assembly is simple, but poor stability in the later stage use, and the mechanical properties of circuit breaker is difficult to reach the requirement.
Disclosure of Invention
The invention aims to provide a spring operating mechanism, which is used for solving the technical problem of poor lock latch stability of the existing spring operating mechanism, and the invention also aims to provide a lock latch assembling device for assembling the spring operating mechanism, which is used for ensuring the stability of a lock latch.
The spring operating mechanism adopts the following technical scheme:
the spring operating mechanism includes:
a frame;
the lock bolt shaft is rotatably assembled on the rack, and two lock bolt shaft mounting holes for mounting two ends of the lock bolt shaft are formed in the rack;
the lock latch is fixed on the lock latch shaft and positioned between the two lock latch shaft mounting holes;
the hasp interference fit is on the hasp axle, and spring operating mechanism still includes:
the bearing is arranged in the lock latch shaft mounting hole, the inner ring of the bearing is arranged on the lock latch shaft, the outer ring of the bearing is arranged on the rack, and the lock latch shaft is in running fit with the lock latch shaft mounting hole through the bearing;
and the positioning sleeve is sleeved on the latch shaft, one end of the positioning sleeve is positioned with the latch in the axial direction, and the other end of the positioning sleeve is propped against the inner ring of the bearing.
Has the advantages that: the bolt shaft of the spring operating mechanism is assembled with the bolt in an interference fit mode, the bolt is positioned through the positioning sleeve, the relative position of the bolt and the bolt shaft can be ensured during installation, and the bolt is not easy to move relative to the bolt shaft.
Furthermore, the two sides of the lock latch in the axial direction of the lock latch shaft are provided with the positioning sleeves. The stability of the latch is further improved.
Furthermore, the latch axle is the step axle, in the two adjacent shaft sections about on the latch axle, the biggest external diameter of right side shaft section is greater than the biggest external diameter of left side shaft section. The step shaft facilitates positioning of the parts on the latch shaft.
Further, the shaft section of the latch shaft matched with the latch is a flat shaft section. The flat shaft section can realize the rotation stopping of the latch shaft and the latch, and further improves the stability of the latch and the latch shaft.
The invention relates to a technical scheme of a latch assembling device, which comprises the following steps:
the latch assembling device includes:
the mounting seat is provided with a detachable connecting structure which is detachably fixed on the frame of the spring operating mechanism;
the driving mechanism comprises a driving shaft, a crank arm arranged on the driving shaft and a connecting rod hinged with the crank arm, wherein the connecting rod is used for being hinged with a latch shaft of the spring operating mechanism, and axial acting force is applied to the latch shaft by rotating the driving shaft, so that the latch shaft passes through a latch shaft mounting hole, a latch, a positioning sleeve and a bearing on the spring operating mechanism and then is in interference fit with the latch.
Has the advantages that: the latch assembling device provided by the invention has the advantages that the acting force is applied to the latch shaft through the driving mechanism, the assembly of the latch and the latch shaft is completed under the positioning action of the positioning sleeve on the latch shaft, the latch and the latch shaft are in interference fit, the stability is better under the positioning action of the positioning sleeve, and the stability of the latch is ensured through the latch assembling device provided by the invention.
Further, the driving mechanism comprises a driving motor, and the driving shaft is driven by the driving motor. The driving motor provides power to operate more conveniently.
Further, the latch assembly device comprises a mounting-in-place travel switch which is triggered to stop the driving motor after the latch shaft is mounted in place. The bolt shaft is prevented from being installed at an excessive position, and the position accuracy of the bolt shaft and the bolt is ensured.
Further, a cam is mounted on the driving shaft, and the cam triggers a stroke switch mounted in place after the latch shaft is mounted in place. The cam is matched with the in-place travel switch, and the trigger state of the in-place travel switch can be kept after the cam is triggered.
Further, the latch assembling device comprises a dismounting in-place travel switch, and the mounting in-place travel switch is triggered to stop the driving motor after the latch shaft and the latch are dismounted in place. The operation of removing the latch shaft is facilitated.
Further, the driving motor is connected with a reduction gear train. It is convenient to control the rotation angle of the driving shaft and increase the output torque of the driving shaft at the same time.
Further, the detachable connection structure comprises a fixing hole arranged on the mounting seat. The fixing hole is simple in structure and convenient to mount and dismount.
Drawings
Fig. 1 is a schematic structural view of a spring operating mechanism and latch assembly mounted on a circuit breaker according to an embodiment 1 of the spring operating mechanism of the present invention;
FIG. 2 is a front view of the latch mounting arrangement of embodiment 1 of the spring operated mechanism of the present invention;
FIG. 3 is a top view of the latch mounting arrangement of embodiment 1 of the spring operated mechanism of the present invention;
FIG. 4 is a schematic view of the mounting structure of the latch shaft, the latch, the positioning sleeve and the bearing in the embodiment 1 of the spring operating mechanism of the present invention;
FIG. 5 is a schematic structural view of a latch shaft in the spring operating mechanism of embodiment 1 of the present invention;
FIG. 6 is a top view of FIG. 5;
FIG. 7 is a schematic view of the latch shaft, latch, and detent sleeve assembly of embodiment 1 of the spring operated mechanism of the present invention;
in the figure: 1. a frame; 11. a frame plate; 2. a latch shaft; 21. a latch mounting section; 3. a latch; 4. a bearing; 5. a positioning sleeve; 6. a latch assembly device; 61. a mounting seat; 62. installing an in-place travel switch; 63. disassembling the in-place travel switch; 64. a drive motor; 65. a drive shaft; 66. a pinion gear; 67. a bull gear; 68. a crank arm; 69. a connecting rod; 610. a cam.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
It is noted that relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The terms "upper", "lower", "front", "rear", "left", "right", and the like indicate orientations or positional relationships that are assumed to be orientations or positional relationships, and are used for convenience in describing the present invention and for simplicity in description, but do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
The features and properties of the present invention are described in further detail below with reference to examples.
The specific embodiment 1 of the spring operating mechanism of the invention:
as shown in fig. 1 and 4, the spring operating mechanism includes a frame 1, a latch shaft 2, and a latch 3.
As shown in fig. 4 to 7, two frame plates 11 are provided on the frame 1 at a left-right interval, two frame plates 11 are provided with latch shaft mounting holes, and two ends of the latch shaft 2 are mounted in the latch shaft mounting holes.
Both ends of the latch shaft 2 are provided with bearings 4, the latch shaft 2 is rotatably assembled on the frame 1 through the bearings 4, the inner ring of each bearing 4 is installed on the latch shaft 2, and the outer ring of each bearing is installed on the wall of the mounting hole of the latch shaft.
The latch 3 is assembled on the latch shaft 2 in an interference manner, and in order to ensure the position accuracy of the latch 3, in the embodiment, two positioning sleeves 5 are sleeved on the latch shaft 2, and the two positioning sleeves 5 are respectively arranged at the left side and the right side of the latch 3. One end face of the positioning sleeve 5 is in positioning fit with the lock bolt 3, and the other end face of the positioning sleeve is in positioning fit with the inner ring of the bearing 4.
In order to further improve the position accuracy of the latch 3, in the present embodiment, the latch shaft 2 is a stepped shaft, the latch shaft 2 includes a latch installation section 21 for installing the latch 3, and the latch installation section 21 is a flat shaft section, so as to facilitate the positioning of the latch 3, and at the same time, achieve the rotation stopping of the latch 3 and the latch shaft 2, and improve the stability of the latch 3 and the latch shaft 2.
When the latch shaft 2 is assembled with the latch 3, the latch 3 is positioned between the two frame plates 11, and the latch shaft 2 sequentially passes through the two frame plates 11, so that the latch 3 and the latch shaft 2 are in interference fit. In order to facilitate the installation of the latch shaft 2, the latch shaft 2 is a stepped shaft in this embodiment, and the maximum outer diameter of the right shaft section is greater than that of the left shaft section in the left and right adjacent shaft sections on the latch shaft 2. The smaller diameter end of the latch shaft 2 is an insertion end for insertion into a latch shaft mounting hole.
The spring operated mechanism latch 3 and latch shaft 2 of this embodiment are mounted by a latch assembly 6, the latch assembly 6 used in this embodiment being described in detail below.
As shown in fig. 2 and 3, the latch assembly device 6 includes a mounting base 61 for detachably fixing the frame 1 by bolts, a driving mechanism, a set-in-position travel switch 62, and a remove-in-position travel switch 63. The mounting seat 61 is removed after the latch shaft and the latch are assembled. The mounting seat is provided with a fixing hole for a bolt to pass through, and the fixing hole forms a detachable connection structure which is used for being detachably fixed on the frame of the spring operating mechanism on the mounting seat. In other embodiments, the detachable connection structure may also be a stud welded to the mounting base, and a through hole for the stud to pass through is provided on the corresponding rack.
The driving mechanism comprises a driving motor 64, a reduction gear train and a driving shaft 65, wherein the driving motor 64 is fixed on the mounting seat 61, and the reduction gear train comprises a small gear 66 fixed on an output shaft of the driving motor 64 and a large gear 67 fixed on the driving shaft 65. The driving shaft 65 is rotatably assembled on the mounting seat 61, a crank arm 68 is fixed on the driving shaft 65, the crank arm 68 is hinged to a connecting rod 69, the connecting rod 69 is used for being hinged to the latch shaft 2 through a pin shaft, and when the driving shaft 65 rotates, the crank arm 68 can be driven to swing, so that the connecting rod 69 and the latch shaft 2 are driven to move.
In this embodiment, the driving shaft 65 is further fixed with a cam 610, the cam 610 starts to mount the in-place travel switch 62 after the latch shaft 2 is mounted in place, the in-place dismounting travel switch 63 is triggered after the latch shaft 2 is dismounted in place, and both the in-place mounting travel switch 62 and the in-place dismounting travel switch 63 are connected with the controller of the driving motor 64 and send signals to the controller to enable the controller to control the motor to stop rotating. Two travel switches are symmetrically arranged on the front and rear sides of the cam 610.
When the latch assembling device 6 is used for assembling, the driving motor 64 is started, an operator holds the latch shaft 2 to enable one end of the latch shaft 2 to be inserted into a latch shaft mounting hole close to the latch shaft 2, then the bearing 4, the positioning sleeve 5 and the latch 3 are sleeved on the latch shaft 2 in sequence, the rotating speed of the driving motor 64 is controlled, the latch shaft 2 is centered, the latch shaft 2 is inserted into another latch shaft mounting hole, then the bearing 4, the positioning sleeve 5 and the latch 3 are mounted in place, in the process of pushing the latch shaft 2 to be in interference fit with the latch 3, the positioning sleeve 5 on the side, opposite to the latch assembling device 6, of the latch 3 is tightly matched with the latch 3, and the position of the latch 3 is located and maintained. During installation, as the latch shaft 2 is hinged with the connecting rod 69, the angle of the latch shaft 2 can be adjusted, and after the latch shaft 2 and the latch 3 are in place, the cam 610 on the driving shaft 65 can trigger the in-place installation travel switch 62, so that the driving motor 64 stops rotating, and the phenomenon that the driving motor 64 rotates excessively to influence the assembly quality of the latch 3 and the latch shaft 2 is avoided. And after the installation is finished, the connecting rod and the latch shaft are detached.
When the latch shaft 2 needs to be removed, the driving motor 64 is rotated reversely, the driving shaft 65 is driven by the driving motor 64 to rotate reversely, the crank arm 68 on the driving shaft 65 swings in the reverse direction until the removal of the latch shaft 2 is completed, the cam 610 triggers the removal in-place travel switch, and the motor stops rotating to complete the removal.
The latch assembling device 6 is used for assembling on line, so that the assembling quality and precision between interference fit assembling parts can be ensured, excessive impact damage to parts can not be caused, and various characteristic parameters in the debugging process of the circuit breaker can be favorably ensured.
In the embodiment 2 of the spring operating mechanism of the present invention, the spring operating mechanism in this embodiment is different from the above embodiments only in that in this embodiment, the radius of the latch mounting section on the latch shaft is the largest, and at this time, the latch shaft can be inserted into any one of the two latch shaft mounting holes to complete the assembly of the latch shaft and the latch.
In the embodiment of the latch assembling device of the present invention, the structure of the latch assembling device in this embodiment is the same as the structure of the latch assembling device described in the above embodiment of the spring operating mechanism, and thus, the detailed description thereof is omitted.
In other embodiments, the latch assembly may be manually actuated, wherein the drive shaft is provided with a handle that is rotated by rocking the handle. In this case, a travel switch is not required.
In other embodiments, only a position-mounted travel switch may be provided. In other embodiments, the drive motor may be a reduction motor. In other embodiments, the travel switch may be activated by a crank arm.
The above description is only a preferred embodiment of the present invention, and not intended to limit the present invention, the scope of the present invention is defined by the appended claims, and all structural changes that can be made by using the contents of the description and the drawings of the present invention are intended to be embraced therein.
Claims (10)
1. The spring operating mechanism includes:
a frame;
the lock bolt shaft is rotatably assembled on the rack, and two lock bolt shaft mounting holes for mounting two ends of the lock bolt shaft are formed in the rack;
the lock latch is fixed on the lock latch shaft and positioned between the two lock latch shaft mounting holes;
its characterized in that, hasp interference fit is on the hasp axle, and spring operating mechanism still includes:
the bearing is arranged in the lock latch shaft mounting hole, the inner ring of the bearing is arranged on the lock latch shaft, the outer ring of the bearing is arranged on the rack, and the lock latch shaft is in running fit with the lock latch shaft mounting hole through the bearing;
and the positioning sleeve is sleeved on the latch shaft, one end of the positioning sleeve is positioned with the latch in the axial direction, the other end of the positioning sleeve is propped against the inner ring of the bearing, and the positioning sleeve is arranged on both sides of the latch in the axial direction of the latch shaft.
2. The spring operating mechanism of claim 1, wherein the latch shaft is a stepped shaft, and a maximum outer diameter of a right shaft section is larger than a maximum outer diameter of a left shaft section of two adjacent shaft sections on the latch shaft.
3. The spring operated mechanism of claim 1 or 2 wherein the shaft segment of the latch shaft that engages the latch is a flat shaft segment.
4. A latch assembly device, comprising:
the mounting seat is provided with a detachable connecting structure which is detachably fixed on the frame of the spring operating mechanism;
the driving mechanism comprises a driving shaft, a crank arm arranged on the driving shaft and a connecting rod hinged with the crank arm, wherein the connecting rod is used for being hinged with a latch shaft of the spring operating mechanism, and axial acting force is applied to the latch shaft by rotating the driving shaft, so that the latch shaft passes through a latch shaft mounting hole, a latch, a positioning sleeve and a bearing on the spring operating mechanism, and then the interference assembly of the latch and the latch shaft is completed under the positioning action of the positioning sleeve on the latch.
5. The latch assembly device of claim 4, wherein the drive mechanism includes a drive motor, the drive shaft being driven by the drive motor.
6. The latch assembly of claim 5, including a home position travel switch that is triggered to stall the drive motor after the latch shaft is in place.
7. The latch assembly device of claim 6, wherein the drive shaft has a cam mounted thereon, the cam activating a mounted-in-place travel switch after the latch shaft is mounted in place.
8. The latch assembly of claim 6, including a remove in place travel switch that is triggered to stall the drive motor after the latch shaft and latch are removed in place.
9. The latch assembly of any of claims 5 to 8, wherein a reduction gear train is connected to the drive motor.
10. The latch assembly of any of claims 4-8, wherein the releasable attachment structure includes a securing aperture disposed in the mounting block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011432295.1A CN112700993B (en) | 2020-12-09 | 2020-12-09 | Spring operating mechanism and latch assembly device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011432295.1A CN112700993B (en) | 2020-12-09 | 2020-12-09 | Spring operating mechanism and latch assembly device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112700993A true CN112700993A (en) | 2021-04-23 |
| CN112700993B CN112700993B (en) | 2024-04-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011432295.1A Active CN112700993B (en) | 2020-12-09 | 2020-12-09 | Spring operating mechanism and latch assembly device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112700993B (en) |
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| CN2874760Y (en) * | 2005-12-29 | 2007-02-28 | 杭申控股集团有限公司 | Lift device of breaker operation mechanism |
| CN201465892U (en) * | 2009-04-30 | 2010-05-12 | 上海德力西集团有限公司 | Automatic reclosure opening control mechanism of indoor high-voltage alternating-current (AC) vacuum breaker |
| CN101829791A (en) * | 2010-05-06 | 2010-09-15 | 宁波市镇海众鑫数控(自动化)机床厂 | There is checkout gear can eliminate the electric main shaft of axial displacement |
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| CN208073159U (en) * | 2018-03-21 | 2018-11-09 | 东莞小盾智能科技有限公司 | A kind of smart electronics mechanical lock |
| CN109166741A (en) * | 2018-09-12 | 2019-01-08 | 平高集团有限公司 | A kind of breaker, spring operating mechanism and its latch assembly |
| CN109842048A (en) * | 2017-11-28 | 2019-06-04 | 天津平高智能电气有限公司 | A kind of operating mechanism chassis interlocking gear and its interlock plate |
| CN111192766A (en) * | 2019-12-20 | 2020-05-22 | 河南平高电气股份有限公司 | Spring operating mechanism and circuit breaker |
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2020
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2874760Y (en) * | 2005-12-29 | 2007-02-28 | 杭申控股集团有限公司 | Lift device of breaker operation mechanism |
| CN201465892U (en) * | 2009-04-30 | 2010-05-12 | 上海德力西集团有限公司 | Automatic reclosure opening control mechanism of indoor high-voltage alternating-current (AC) vacuum breaker |
| US20110111626A1 (en) * | 2009-11-12 | 2011-05-12 | Richard Paglia | Coaxial connector with locking sleeve for terminating cable |
| CN101829791A (en) * | 2010-05-06 | 2010-09-15 | 宁波市镇海众鑫数控(自动化)机床厂 | There is checkout gear can eliminate the electric main shaft of axial displacement |
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| CN102815394A (en) * | 2012-08-13 | 2012-12-12 | 湖南山河科技股份有限公司 | Light aircraft rudder spring centering positioning mechanism |
| CN103286678A (en) * | 2013-05-28 | 2013-09-11 | 上海原创精密机床主轴有限公司 | Multi-functional built-in dynamic-static-pressure motorized spindle for efficient high-speed precision machine |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN112700993B (en) | 2024-04-19 |
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