CN208385331U - Shift fork limiting device and the operating mechanism for using the shift fork limiting device - Google Patents
Shift fork limiting device and the operating mechanism for using the shift fork limiting device Download PDFInfo
- Publication number
- CN208385331U CN208385331U CN201821069344.8U CN201821069344U CN208385331U CN 208385331 U CN208385331 U CN 208385331U CN 201821069344 U CN201821069344 U CN 201821069344U CN 208385331 U CN208385331 U CN 208385331U
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- CN
- China
- Prior art keywords
- shift fork
- inserts
- guide part
- spring base
- limiting device
- 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.)
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Abstract
The utility model relates to shift fork limiting device and use the operating mechanism of the shift fork limiting device, shift fork limiting device includes the press spring base for being mounted in the corresponding frame of operating mechanism, the guide part axially extended is installed on the press spring base, the pressure spring for limiting to shift fork is arranged on the guide part, the inserts with connection screw thread is integrally cast on the press spring base, the guide part is fixedly mounted on press spring base by being threadedly engaged with inserts.Compared with prior art, by the inserts for being used to be threadedly engaged with guide part and press spring base one moulding by casting, drilling, tapping step before reducing installation guide part keep the assembly of guide part and inserts more convenient, reduce processing cost, improves processing efficiency.
Description
Technical field
The utility model relates to shift fork limiting device and use the operating mechanism of the shift fork limiting device.
Background technique
Dc circuit breaker is the guarantee of DC power-supply system safe operation, has reliable cutting DC loop fault electric current
Function, be the core component in direct current power supply-distribution system, therefore, dc circuit breaker is widely used in subway, smelting, change
The industries such as work, solar power generation, mine.As application publication number is CN104377095A, data of publication of application is 2015.02.25
Chinese patent discloses a kind of closing transmission mechanism and operating mechanism and breaker using the transmission mechanism, the breaker include
Static contact and closing transmission mechanism, closing transmission mechanism include poke rod and the biography for being solid-located with corresponding moving contact
Power block, force-transmitting block is located at below poke rod and force-transmitting block is equipped with the load shoulder towards poke rod, and poke rod is equipped with and is used for
Cooperate with the load shoulder pushing tow of force-transmitting block to push force-transmitting block to drive moving contact towards static contact when poke rod is moved to the left
The downward opening recess for moving and closing a floodgate, the right end of poke rod are equipped with for cutting with scissors with the power output shaft of corresponding operating mechanism
The articulated structure connect；Press spring base is installed with below static contact, the lower section of press spring base is equipped with pressure spring and is threaded through in pressure spring to pressure
The guide rod that spring is oriented to, the lower end of pressure spring are equipped with the force transmitting board being arranged on the guide bar, and driver plate is under the action of pressure spring
Sliding presses against on poke rod, to limit the rotation of poke rod during the work time, to realize the reliable of poke rod and lock
Cooperation.
It is in the prior art typically all that steel-wire screw-socket is installed on press spring base, guide rod is mounted on pressure spring by steel-wire screw-socket
On seat, but steel-wire screw-socket needs first to bore mounting hole on press spring base in assembly, then tapping is carried out to mounting hole, finally by steel
Silk swivel nut is mounted in mounting hole, higher to the precision prescribed of mounting hole, and tapping process is more difficult and steel-wire screw-socket is packed into peace
It is also inconvenient to fill hole, improves labor intensity, reduces production efficiency.
Utility model content
The purpose of this utility model is to provide a kind of shift fork limiting devices, are being pacified with solving press spring base in the prior art
Problem easy to install is not allowed when filling steel-wire screw-socket；The purpose of this utility model, which also resides in, provides a kind of use shift fork limiting device
Operating mechanism.
To achieve the above object, the technical solution of the utility model shift fork limiting device is:
Shift fork limiting device includes the press spring base for being mounted in the corresponding frame of operating mechanism, is pacified on the press spring base
Equipped with the guide part axially extended, it is arranged with the pressure spring for limiting to shift fork on the guide part, one on the press spring base
Body is cast with the inserts with connection screw thread, and the guide part is fixedly mounted on press spring base by being threadedly engaged with inserts.
The inserts has internal screw thread, and corresponding guide part is guide rod, and the guide rod is set close to one end of press spring base
There is the external screw thread being threadedly coupled with the inserts.
The inserts is nut.
At least two inserts are integrally cast on the press spring base, the guide part and inserts correspond.
The quantity of the guide part is two, is arranged with pressure spring on each guide part, the shift fork limiting device also wraps
Tool is included there are two the force transmitting board of mounting hole, the force transmitting board is set on two guide parts by two mounting holes, force transmitting board tool
There is the top pressure face of press shift fork, the pressure spring is arranged between force transmitting board and press spring base.
To achieve the above object, the technical solution of the utility model operating mechanism is:
Operating mechanism includes shift fork and Insulating frame, and one end of the shift fork is sequentially connected with power output shaft, described exhausted
Edge frame is equipped with the shift fork limiting device limited to shift fork far from one end of power output shaft, the shift fork limiting device
Including the press spring base for being mounted on the Insulating frame of operating mechanism, the guiding axially extended is installed on the press spring base
Part is arranged with the pressure spring for limiting to shift fork on the guide part, is integrally cast on the press spring base with connection screw thread
Inserts, the guide part is fixedly mounted on press spring base by being threadedly engaged with inserts.
The inserts has internal screw thread, and corresponding guide part is guide rod, and the guide rod is set close to one end of press spring base
There is the external screw thread being threadedly coupled with the inserts.
The inserts is nut.Structure is simple, fixes convenient for being threadedly coupled.
At least two inserts are integrally cast on the press spring base, the guide part and inserts correspond.Guarantee effect
The balance of power on shift fork.
The quantity of the guide part is two, is arranged with pressure spring on each guide part, the shift fork limiting device also wraps
Tool is included there are two the force transmitting board of mounting hole, the force transmitting board is set on two guide parts by two mounting holes, force transmitting board tool
There is the top pressure face of press shift fork, the pressure spring is arranged between force transmitting board and press spring base.
The beneficial effects of the utility model are: compared with prior art, the inserts and pressure spring that will be threadedly engaged with guide part
The integrated moulding by casting of seat, drilling, tapping step before reducing installation guide part, keeps the assembly of guide part and inserts more square
Just, processing cost is reduced, processing efficiency is improved.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the specific embodiment 1 of the operating mechanism of the utility model；
Fig. 2 is that the specific embodiment 1 of the operating mechanism of the utility model removes the structural schematic diagram of dynamic and static contact；
Fig. 3 is the top view of Fig. 2；
Fig. 4 is the structural schematic diagram of the specific embodiment 2 of the operating mechanism of the utility model.
Specific embodiment
The embodiments of the present invention is described further with reference to the accompanying drawing.
The specific embodiment 1 of the operating mechanism of the utility model, as shown in Figure 1 to Figure 3, operating mechanism include 5 He of shift fork
Insulating frame 8, one end of shift fork 5 are equipped with the first articulated shaft 51, and shift fork 5 is connected by the first articulated shaft 51 with pto shaft drive
It connects, Insulating frame 8 is equipped with the shift fork limiting device limited to shift fork 5 far from one end of power output shaft.Shift fork limit
Device includes press spring base 1, and the guide rod 3 axially extended is equipped on press spring base 1, and guide rod 3 constitutes guide part, guide rod
Pressure spring 6 and force transmitting board 2 are arranged on 3, force transmitting board 2 has the top pressure face for pressing shift fork 5, is integrally cast on press spring base 1
Nut 7, nut 7 constitute inserts, and guide rod 3 is mounted on press spring base 1 by being threadedly engaged with nut 7.In other embodiments
In, stud is integrally cast on press spring base, guide part is tool internal thread guide cylinder；Or spiral shell is integrally cast on press spring base
Column, guide part are guide rod, and one end that guide rod and stud cooperate is equipped with tool internal thread threaded hole；Or inserts be with
The sleeve of internal screw thread.Compared with prior art, it by the nut cooperated with guide rod thread and press spring base one moulding by casting, reduces
Drilling, tapping step before installation guide rod, keep the assembly of guide rod and nut more convenient, reduce processing cost, mention
High processing efficiency.
As shown in figure 3, being integrally poured on press spring base 1 there are two nut 7, the quantity of corresponding guide rod 3 is two, two
Guide rod 3 is threadedly coupled fixation with two nuts 7 respectively, and two guide rods 3 share a force transmitting board 2, are pressing force transmitting board
It can guarantee the balance to the power acted on shift fork under the action of spring.In other embodiments, the quantity of nut is one, right
The quantity for the guide rod answered is one, easily leads to shift fork when shift fork is mobile and glances off.Shift fork 5 is far from the first articulated shaft 51
One end is U-shaped structure, and the space among two parallel edges of U-shaped structure constitutes the avoiding space for avoiding above-mentioned guide rod.
In other embodiments, the one end of shift fork far from hinge hole is plate, and plate, which is equipped with, to be extended along shift fork moving direction for keeping away
Allow the elongated hole of guide rod, elongated hole and guide rod correspond.
As shown in Figure 1, the downside of shift fork 5 is equipped with lock 4, latches 4 and be equipped with pin hole 41, lock 4 is by pin hole 41 and moves
Contact 9 is solid-located, and moving contact 9 is equipped with the second articulated shaft 91, and moving contact 9 passes through the avoiding space of U-shaped structure, and dynamic touching
First 9 can around the second articulated shaft 91 in avoiding space along rotating clockwise or counterclockwise.Stationary contact is installed on Insulating frame 8
First 10, moving contact 9 and the contact of static contact 10, disconnection are realized under the reciprocating motion of shift fork 5, to realize the division of breaker
Lock.
When work, power output shaft pushes shift fork 5 to be moved to the left, and shift fork 5 is matched by the recess portion of its underpart with 4 pushing tows of lock
It closes, lock 4 is driven to rotate counterclockwise, since moving contact 9 and lock 4 are solid-located, moving contact 9 is inverse around the second articulated shaft 91
Hour hands rotation realizes contact of the moving contact with static contact, completes feed motion；Wherein, power output shaft pushes shift fork 5 to the left
In the process, shift fork limiting device can limit shift fork, guarantee shift fork will not generate rotation, thus realize shift fork with latch can
By cooperation.When needing separating brake, operating mechanism disappears to the power of shift fork 5 to the left, and internal spring applies to the right shift fork 5
Active force, while moving contact 9 rotates clockwise separate static contact 10 under the action of tripping spring, the separating brake for completing breaker is dynamic
Make.When there is short circuit current, the left end of shift fork 5 is by upward active force, and shift fork 5 is under upward active force around first
Articulated shaft 51 is flipped up, and the recess portion and lock of shift fork 5 are detached from, and shift fork 5 releases the restriction to moving contact 9, realizes tripping.
The specific embodiment 2 of the operating mechanism of the utility model, as shown in figure 4, be with the difference of specific embodiment 1,
The quantity of guide rod 3 is one.
The specific embodiment of the shift fork limiting device of the utility model, shift fork limiting device and above-mentioned behaviour in the present embodiment
The structure of shift fork limiting device described in the specific embodiment 1 or 2 of motivation structure is identical, and it will not go into details.
Claims (10)
1. shift fork limiting device is pacified on the press spring base including the press spring base for being mounted in the corresponding frame of operating mechanism
Equipped with the guide part axially extended, the pressure spring for limiting to shift fork is arranged on the guide part, it is characterised in that: described
The inserts with connection screw thread is integrally cast on press spring base, the guide part is fixedly mounted on pressure by being threadedly engaged with inserts
On spring abutment.
2. shift fork limiting device according to claim 1, it is characterised in that: the inserts has internal screw thread, corresponding to lead
It is guide rod to part, the guide rod is equipped with the external screw thread being threadedly coupled with the inserts close to one end of press spring base.
3. shift fork limiting device according to claim 2, it is characterised in that: the inserts is nut.
4. shift fork limiting device according to claim 1 or 2 or 3, it is characterised in that: be integrally cast on the press spring base
At least two inserts, the guide part and inserts correspond.
5. shift fork limiting device according to claim 1 or 2 or 3, it is characterised in that: the quantity of the guide part is two
It is a, pressure spring is arranged on each guide part, the shift fork limiting device further includes tool there are two the force transmitting board of mounting hole, described
Force transmitting board is set on two guide parts by two mounting holes, and force transmitting board has the top pressure face of press shift fork, and the pressure spring is set
It sets between force transmitting board and press spring base.
6. operating mechanism, including shift fork and Insulating frame, one end of the shift fork is sequentially connected with power output shaft, the insulation
Frame is equipped with the shift fork limiting device limited to shift fork far from one end of power output shaft, it is characterised in that: described group
Fork limiting device includes the press spring base for being mounted on the Insulating frame of operating mechanism, is equipped on the press spring base along axial direction
The guide part of extension is arranged with the pressure spring for limiting to shift fork on the guide part, is integrally cast with tool on the press spring base
There is the inserts of connection screw thread, the guide part is fixedly mounted on press spring base by being threadedly engaged with inserts.
7. operating mechanism according to claim 6, it is characterised in that: the inserts has internal screw thread, corresponding guide part
For guide rod, the guide rod is equipped with the external screw thread being threadedly coupled with the inserts close to one end of press spring base.
8. operating mechanism according to claim 7, it is characterised in that: the inserts is nut.
9. operating mechanism described according to claim 6 or 7 or 8, it is characterised in that: be integrally cast at least on the press spring base
Two inserts, the guide part and inserts correspond.
10. operating mechanism described according to claim 6 or 7 or 8, it is characterised in that: the quantity of the guide part is two, often
Pressure spring is arranged on a guide part, the shift fork limiting device further includes that there are two the force transmitting board of mounting hole, the power transmissions for tool
Plate is set on two guide parts by two mounting holes, and force transmitting board has the top pressure face of press shift fork, and the pressure spring setting exists
Between force transmitting board and press spring base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821069344.8U CN208385331U (en) | 2018-07-06 | 2018-07-06 | Shift fork limiting device and the operating mechanism for using the shift fork limiting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821069344.8U CN208385331U (en) | 2018-07-06 | 2018-07-06 | Shift fork limiting device and the operating mechanism for using the shift fork limiting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208385331U true CN208385331U (en) | 2019-01-15 |
Family
ID=64963250
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821069344.8U Expired - Fee Related CN208385331U (en) | 2018-07-06 | 2018-07-06 | Shift fork limiting device and the operating mechanism for using the shift fork limiting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208385331U (en) |
-
2018
- 2018-07-06 CN CN201821069344.8U patent/CN208385331U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20190115 |