CN205638707U - Exhaust brake butterfly valve of dual -limitation rocking arm - Google Patents
Exhaust brake butterfly valve of dual -limitation rocking arm Download PDFInfo
- Publication number
- CN205638707U CN205638707U CN201620450803.1U CN201620450803U CN205638707U CN 205638707 U CN205638707 U CN 205638707U CN 201620450803 U CN201620450803 U CN 201620450803U CN 205638707 U CN205638707 U CN 205638707U
- Authority
- CN
- China
- Prior art keywords
- connecting portion
- driving shaft
- cylinder
- rocking arm
- hole
- 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 - Fee Related
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
- F02D9/04—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits concerning exhaust conduits
- F02D9/06—Exhaust brakes
Abstract
The utility model provides an exhaust brake butterfly valve of dual -limitation rocking arm, including an operating device, operating device includes a rocking arm, and the rocking arm further includes: cylinder connecting portion, driving shaft connecting portion and block connecting portion, wherein, the cylinder connecting portion are a lamellar body, and a cylinder through -hole is offered to the cylinder connecting portion, and the cylinder connecting portion pass through the cylinder through -hole and the cylinder is connected, the driving shaft connecting portion are a lamellar body, and a driving shaft through -hole is offered to the driving shaft connecting portion, and the driving shaft penetrates the driving shaft through -hole to self -locking nut and driving shaft connecting portion are connected, the block connecting portion are a lamellar body, and a block through -hole is offered to the block connecting portion, and the block through -hole is connected to the screw rod screw in, and the block connecting portion have the connection driving shaft connecting portion of angle. The utility model discloses the rocking arm adopts the dual -limitation form, the wearing and tearing of the reduction spare part of very big degree, and the butterfly piece can not reduce the leakproofness because of the striking for life is longer.
Description
Technical field
This utility model relates to a kind of complemental brake system, is specifically related to the row of the double spacing rocking arm that a kind of vehicle uses
Gas braking butterfly valve.
Background technology
Exhaust brake butterfly valve is a kind of complemental brake system of vehicle, is particularly well-suited to commerial vehicle, energy high degree
Reduce the use frequency of running brake, just car braking can be prevented to lose by wagon control in the range of certain safe speed
Spirit, it is ensured that traffic safety.
The exhaust brake butterfly valve of prior art, is to rely on cylinder or the deflection of vacuum servo cylinder push-and-pull driving shaft and make tab (s)
Deflection, China Patent No. 201210410520.0 discloses a kind of pressure limiting and loses heart auxiliary braking valve gear, which includes gas
Cylinder, operating mechanism and connected pressure limiting are lost heart auxiliary braking valve gear, and design, when pressure exceedes setting value, discharges in time
Unnecessary pressure, it is ensured that stablizing of operating pressure, but do not describe in detail about operating mechanism, in reality produces, as
Shown in Fig. 1, described operating mechanism belongs to monolateral spacing, namely under tab (s) 10 opening, when maximum angle, operates machine
Structure 20 and block bar 30 touch, and operating mechanism no longer moves.And under tab (s) closed mode, when maximum angle, operating mechanism
Do not touch with block bar.
Therefore, the operating mechanism of prior art, for monolateral spacing.When tab (s) is closed, and engine exhaust enters entering of valve body
During air cavity, tab (s) carries out spacing against clashing into valve interior wall, according to the power output of cylinder minimum 5ooN, often closes once, butterfly
Sheet and driving shaft are by the torsion of 18.5Nm.This abrasion accelerating tab (s) and the deformation of driving shaft.Again because of exhaust brake butterfly
The operating ambient temperature of valve is at 450 DEG C to 650 DEG C, and material can be because generation of being heated expands and metaboly, when exhaust brake butterfly
When valve parts dilatancy is excessive, butterfly valve arises that clamping stagnation, stuck, the not fault mode such as return.And when parts are at height
When receiving active force under temperature, the parts deflection of butterfly valve will substantially increase, so fault rate will be obviously improved.
In sum, there are some technical problems anxious to be resolved in the exhaust brake butterfly valve of prior art.
Utility model content
For drawbacks described above, the purpose of this utility model is to provide a kind of simple and compact for structure, stable performance double spacing
The exhaust brake butterfly valve of rocking arm, to solve the technical problem of prior art.
For achieving the above object, this utility model have employed following technical scheme:
The exhaust brake butterfly valve of a kind of double spacing rocking arm, including a cylinder；One operating mechanism；One valve body, on described valve body
Offer a fixed via；One tab (s), described tab (s) is fixed on body cavity through the fixed via of described valve body by driving shaft
In；One support means, described support means combines described driving shaft and described tab (s) is fixed in body cavity；One pressure regulation dress
Putting, described regulator is arranged on described valve body, in order to regulate pressure；One pressure relief opening device, described pressure relief opening device is arranged
In described tab (s), being connected in order to vented gasses with described regulator, described operating mechanism includes that a rocking arm, described rocking arm enter
One step includes:
One cylinder connecting portion, a driving shaft connecting portion and a block connecting portion, wherein,
Described cylinder connecting portion is a lamellar body, and described cylinder connecting portion offers a cylinder through hole, and described cylinder connecting portion leads to
Cross described cylinder through hole and described cylinder connects；
Described driving shaft connecting portion is a lamellar body, and described driving shaft connecting portion offers a driving shaft through hole, described driving shaft
Penetrate described driving shaft through hole, connect with self-locking nut and described driving shaft connecting portion；
Described block connecting portion is a lamellar body, and described block connecting portion offers a block through hole, and it is described that screw rod screws in connection
Block through hole, the angled connection of described block connecting portion described driving shaft connecting portion.
According to the exhaust brake butterfly valve of the double spacing rocking arm described in this utility model embodiment, described cylinder connecting portion, master
Moving axis connecting portion and block connecting portion is one-body molded makes.
According to the exhaust brake butterfly valve of the double spacing rocking arm described in this utility model embodiment, described driving shaft, self-locking spiral shell
Female and described driving shaft connecting portion connects with welding.
According to the exhaust brake butterfly valve of the double spacing rocking arm described in this utility model embodiment, described cylinder connecting portion passes through
Described cylinder through hole, connects with pin and described cylinder.
According to the exhaust brake butterfly valve of the double spacing rocking arm described in this utility model embodiment, at described cylinder connecting portion and
In place of block connecting portion connects, offer one and blurt out.
The design philosophy of the application is, improves exhaust brake butterfly valve actual life.Because when butterfly valve works, cylinder
Promoting rocking arm to rotate around driving shaft, tab (s) rotates with driving shaft, and tab (s) clashes into valve interior wall；According to cylinder minimum 5ooN
Power output, often closes once, and tab (s) and driving shaft are by the torsion of 18.5Nm, this abrasion accelerating tab (s) and the change of driving shaft
Shape.When adding a position-limit mechanism on rocking arm, power wanted hardly by tab (s) and driving shaft, and active force is all rocking arm internal stress, Er Qieshou
The rocking arm operating temperature of power is at about 200 DEG C, and parts deflection is the least, thus results in that butterfly valve is stuck, clamping stagnation and not return
Phenomenon will substantially lower.Rocking arm uses Type of Welding with driving shaft and self-locking nut, improves intensity and the rigidity of rocking arm, it is possible to
To improve rocking arm service life.
Owing to have employed above technical characteristic so that this utility model have such advantages as compared to prior art and
Good effect:
The first, during this utility model tab (s) switch, tab (s) and driving shaft stress hardly, active force is all rocking arm planted agent
Power, so improving tab (s) and driving shaft junction service life；
The second, this utility model rocking arm and driving shaft and self-locking nut uses Type of Welding, improve rocking arm intensity and
Rigidity；
3rd, the employing pair of this utility model rocking arm is spacing adds cylinder pretension form so that no matter exhaust brake butterfly valve is in work
Making and during off working state, the parts such as rocking arm, driving shaft and tab (s) have a power to haul, so parts can be greatly reduced
Abrasion, thus improve the life-span；
4th, this utility model tab (s) will not lower sealing because of shock, so butterfly valve constant voltage stable performance.
Certainly, implement any one specific embodiment of this utility model content, might not have all of the above simultaneously
Technique effect.
Accompanying drawing explanation
Fig. 1 is prior-art illustration；
Fig. 2 is that tab (s) of the present utility model closes schematic top plan view；
Fig. 3 is that tab (s) of the present utility model opens schematic top plan view；
Fig. 4 is that this utility model part part separates schematic diagram；
Fig. 5 is rocking arm schematic diagram of the present utility model:
Fig. 6 is another schematic diagram of this utility model rocking arm.
Detailed description of the invention
For ease of understanding, below in conjunction with accompanying drawing, preferred embodiment of the present utility model is described in further detail.
Refer to Fig. 2 and Fig. 4, the exhaust brake butterfly valve of a kind of double spacing rocking arms, including a cylinder 1；One operating mechanism 2；
One valve body 3, described valve body 3 offers a fixed via；One tab (s) 4, driving shaft 5 will through the fixed via of described valve body 3
Described tab (s) 4 is fixed in valve body 3 inner chamber；One support means (not shown), described support means combines described driving shaft 5 by institute
State tab (s) 4 to be fixed in valve body 3 inner chamber；One regulator 6, described regulator is arranged on described valve body 3, in order to regulate pressure
Power；One pressure relief opening device (not shown), described pressure relief opening device is arranged in described tab (s) 4, is connected use with described regulator
With vented gasses.
Among this, described operating mechanism includes a rocking arm 21, refer to Fig. 4 and Fig. 5, as it can be seen, described rocking arm 21
Farther including: cylinder connecting portion 22, driving shaft connecting portion 23 and a block connecting portion 24, wherein, described cylinder connects
Portion 22 is a lamellar body, and described cylinder connecting portion 22 offers a cylinder through hole 25, and described cylinder connecting portion 22 is led to by described cylinder
Hole 25, connects with pin 7 and described cylinder 1；Certainly, in addition to pin 7, it is also possible to connect by the method for screw rod attaching nut
Connect, as long as can be stably connected with the most permissible, so the protection domain limiting the application can not be connected with pin 7.
It addition, described driving shaft connecting portion 23 is a lamellar body, described driving shaft connecting portion 23 offers a driving shaft through hole 26,
Described driving shaft 5 penetrates described driving shaft through hole 26, connects with self-locking nut 8 and described driving shaft connecting portion 23；And described gear
Only connecting portion 24 is a lamellar body, and described block connecting portion 24 offers a block through hole 27, and screw rod 9 screws in and connects described block through hole
27, the angled connection of described block connecting portion 24 described driving shaft connecting portion 23.
Preferably, described cylinder connecting portion 22, driving shaft connecting portion 23 and block connecting portion 24 is one-body molded makes, such as figure
Shown in 5, cylinder connecting portion 22 and driving shaft connecting portion 23 be not at a horizontal plane, and this is to coordinate cylinder 1, driving shaft 5
Depending on the connected mode of block bar 11, it is also possible to use other method of attachment instead, cylinder connecting portion 22 and driving shaft are connected
Portion 23 designs at a horizontal plane.It addition, block connecting portion 24 angled connection driving shaft connecting portion 23, this angle is 90
Degree, but can not be used for limiting the application, as long as screw rod 9 can being facilitated to screw in, facilitating the screw rod 9 to position and length in service life
Angle, should be all the protection domain of the application.The purpose of screw rod 9 location is used to finely tune the anglec of rotation of driving shaft 5 so that
Tab (s) 4 will not clash into valve body 3；Screw rod 9 is because shock to be born, and this impact force can be conducted to block connecting portion 24, more than institute
State about cylinder connecting portion 22, driving shaft connecting portion 23 and the connected mode of block connecting portion 24, it is simply that rocking arm 21 service life
Technology ensure.
Preferably, described driving shaft 5, self-locking nut 8 and described driving shaft connecting portion 23 connect with welding, Type of Welding,
Improve intensity and the rigidity of rocking arm 21 significantly, the most just improve the service life of rocking arm 21.Refer to Fig. 2 and Fig. 3,
When tab (s) 4 is closed, screw rod 9 and block bar 11 connect；During the maximum unlatching of tab (s) 4, cylinder connecting portion 22 and block bar 11 connect.?
During automobilism, electromotor self can produce the shake injustice plus road surface, and automobile also can produce vibrations, if exhaust brake butterfly
Valve uses matched in clearance, and tab (s) 4 also can be shaken therewith, thus accelerate butterfly valve parts wear, so above-mentioned Type of Welding, be carried
The high service life of rocking arm 21.Using at rocking arm 21 double spacing, add upper cylinder pretension form, no matter exhaust brake butterfly valve is in work
Making and during off working state, the parts such as rocking arm 21, driving shaft 5, tab (s) 4 have a power to haul, and can greatly reduce parts
Abrasion, thus improve the life-span.Additionally, under this scheme, tab (s) 4 will not produce shock, and the tappet at constant pressure valve will not become
Shape, sealing property can keep so that butterfly valve constant voltage performance tends towards stability.
Refer to Fig. 6, it is preferred that in order to be easier to punching press, on the ground that cylinder connecting portion 22 and block connecting portion 24 connect
Side, on block connecting portion 24, has opened one and has blurted out 241, namely flange has been opened some breach over there, be the most both easy to crimp,
Stress can be eliminated again.
Owing to have employed above technical characteristic so that this utility model have such advantages as compared to prior art and
Good effect:
The first, during this utility model tab (s) switch, tab (s) and driving shaft stress hardly, active force is all rocking arm planted agent
Power, so improving tab (s) and driving shaft junction service life；
The second, this utility model rocking arm and driving shaft and self-locking nut uses Type of Welding, improve rocking arm intensity and
Rigidity；
3rd, the employing pair of this utility model rocking arm is spacing adds cylinder pretension form so that no matter exhaust brake butterfly valve is in work
Making and during off working state, the parts such as rocking arm, driving shaft and tab (s) have a power to haul, so parts can be greatly reduced
Abrasion, thus improve the life-span；
4th, this utility model tab (s) will not lower sealing because of shock, so butterfly valve constant voltage stable performance.
Certainly, implement any one specific embodiment of this utility model content, might not have all of the above simultaneously
Technique effect.Disclosed above is only preferred embodiment of the present utility model, but is not used for limiting itself, any ripe
Habit those skilled in the art is in the case of this utility model spiritual connotation, and the equalization done changes and changes, all
Should fall in protection domain of the present utility model.
Claims (5)
1. an exhaust brake butterfly valve for double spacing rocking arms, including a cylinder；One operating mechanism；One valve body, described valve body is opened
It is provided with a fixed via；One tab (s), described tab (s) is fixed in body cavity by driving shaft through the fixed via of described valve body；
One support means, described support means combines described driving shaft and described tab (s) is fixed in body cavity；One regulator, institute
State regulator to be arranged on described valve body, in order to regulate pressure；One pressure relief opening device, described pressure relief opening device is arranged on described
In tab (s), it is connected in order to vented gasses with described regulator, it is characterised in that described operating mechanism includes a rocking arm, described
Rocking arm farther includes:
One cylinder connecting portion, a driving shaft connecting portion and a block connecting portion, wherein,
Described cylinder connecting portion is a lamellar body, and described cylinder connecting portion offers a cylinder through hole, and described cylinder connecting portion passes through institute
State cylinder through hole and described cylinder connects；
Described driving shaft connecting portion is a lamellar body, and described driving shaft connecting portion offers a driving shaft through hole, and described driving shaft penetrates
Described driving shaft through hole, connects with self-locking nut and described driving shaft connecting portion；
Described block connecting portion is a lamellar body, and described block connecting portion offers a block through hole, and screw rod screws in and connects described block
Through hole, the angled connection of described block connecting portion described driving shaft connecting portion.
2. the exhaust brake butterfly valve of double spacing rocking arm as claimed in claim 1, it is characterised in that described cylinder connecting portion, master
Moving axis connecting portion and block connecting portion is one-body molded makes.
3. the exhaust brake butterfly valve of double spacing rocking arm as claimed in claim 1, it is characterised in that described driving shaft, self-locking spiral shell
Female and described driving shaft connecting portion connects with welding.
4. the exhaust brake butterfly valve of double spacing rocking arm as claimed in claim 1, it is characterised in that described cylinder connecting portion passes through
Described cylinder through hole, connects with pin and described cylinder.
5. the exhaust brake butterfly valve of spacing rocking arms as claimed in claim 1 double, it is characterised in that at described cylinder connecting portion and
In place of block connecting portion connects, offer one and blurt out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620450803.1U CN205638707U (en) | 2016-05-18 | 2016-05-18 | Exhaust brake butterfly valve of dual -limitation rocking arm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620450803.1U CN205638707U (en) | 2016-05-18 | 2016-05-18 | Exhaust brake butterfly valve of dual -limitation rocking arm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205638707U true CN205638707U (en) | 2016-10-12 |
Family
ID=57057425
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620450803.1U Expired - Fee Related CN205638707U (en) | 2016-05-18 | 2016-05-18 | Exhaust brake butterfly valve of dual -limitation rocking arm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205638707U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3080426A1 (en) * | 2018-04-24 | 2019-10-25 | Faurecia Systemes D'echappement | ASSEMBLING A VALVE FOR AN EXHAUST LINE AND CORRESPONDING VALVE |
-
2016
- 2016-05-18 CN CN201620450803.1U patent/CN205638707U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3080426A1 (en) * | 2018-04-24 | 2019-10-25 | Faurecia Systemes D'echappement | ASSEMBLING A VALVE FOR AN EXHAUST LINE AND CORRESPONDING VALVE |
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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 |
Granted publication date: 20161012 Termination date: 20210518 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |