CN206175016U - Engine brake control circuit structure - Google Patents
Engine brake control circuit structure Download PDFInfo
- Publication number
- CN206175016U CN206175016U CN201621145323.0U CN201621145323U CN206175016U CN 206175016 U CN206175016 U CN 206175016U CN 201621145323 U CN201621145323 U CN 201621145323U CN 206175016 U CN206175016 U CN 206175016U
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- valve
- rocking arm
- valve element
- oil circuit
- control
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Abstract
The utility model provides an engine brake control circuit structure, the top of valve core case (6) and the bottom of oil circuit case (7) offset, hemisphere valve (8) are withstood to the upper end of control case (4), hemisphere valve (8) sphere offsets with oil circuit case (7), hemisphere valve (8) upper end offsets with hemisphere disk seat (9), control circuit (15) one end is linked together with rocking arm axle (12) inside oilhole, control circuit (15) other end setting is in rocking arm (1) cavity bottom, I (16) one end of working connection is linked together with rocking arm axle (12) inside oilhole, I (16) the other end of working connection is linked together with rocking arm (1) cavity upper portion, II (17) one end of working connection are linked together with rocking arm (1) cavity upper portion, II (17) the other ends of working connection are connected with brake actuator's (2) upper end. Compact structure, assembly are simple, and a level pressure release can be avoided when the braking is closed the braking voltol oil to release suddenly and produce great impact and noise.
Description
Technical field
This utility model is related to a kind of oil circuit control, more specifically to a kind of engine braking oil circuit control structure,
Belong to vehicle engine braking technical field.
Background technology
With the development of diesel technology, realized by engine braking car load slow down or steady descending technology
Widely apply, this process realizes the execution/releasing action of engine braking mechanism by solenoid valve control machine oil break-make.
Existing oil circuit control structure is generally provided with check valve at actuator and pins hydraulic oil, so as to ensure braking
Actuator action is kept under state；Also repairing can be carried out to actuator in the case of braking is non-loaded simultaneously.But, it is existing
Some oil circuit control structures are more complicated, while it has high requirements to engine oil pressure and machine oil degree of purity, and brake unlatching/solution
Except action it is not rapid enough.
The content of the invention
This utility model for existing oil circuit control structure structure it is more complicated, braking unlatching/releasing action it is not fast enough
A kind of fast the problems such as, there is provided engine braking oil circuit control structure.
For achieving the above object, technical solution of the present utility model is：A kind of engine braking oil circuit control structure,
Including rocking arm, brake actuator, bulb edge cylinder, described rocking arm is nested with rocker arm shaft, and the brake actuator is arranged
In the valve end of rocking arm, the bulb edge cylinder is connected with the bulb of brake actuator, also includes control valve element, valve element
Seat, oil circuit valve element, semisphere valve, hemisphere valve seat, plug, oil circuit control, working connection I and working connection II, described control valve element, valve
Core print seat, oil circuit valve element, semisphere valve and hemisphere valve seat are arranged in rocking arm cavity, and described control valve element is arranged on rocking arm cavity
Bottom, described valve core case is fixed in rocking arm cavity, and between the bottom of valve core case and control valve element control spring is provided with
I, the top of valve core case and the bottom of oil circuit valve element offset, and semisphere valve, described semisphere valve sphere are withstood in the upper end for controlling valve element
Offset with oil circuit valve element, the hemisphere valve seat is arranged in the inner groovy of oil circuit valve element, and semisphere valve upper end and hemisphere valve seat phase
Support, described plug is arranged on rocking arm cavity port and is fixed on rocking arm, be provided between described hemisphere valve seat and plug
Control spring II, described oil circuit control one end is connected with rocker arm shaft inside oilhole, and the oil circuit control other end is arranged on rocking arm
Cavity bottom, described one end of working connection I is connected with rocker arm shaft inside oilhole, the other end of working connection I and rocking arm cavity top
It is connected, described one end of working connection II is connected with rocking arm cavity top, the other end of working connection II and brake actuator
Upper end is connected.
The described valve element that controls is three-level ladder shaft-like structure, and the middle part ladder for controlling valve element is nested with valve core case, is controlled
Semisphere valve is withstood on the top ladder top of valve element processed, and the control spring I is arranged on the lower step top surface and valve of control valve element
Between the bottom of core print seat.
Compared with prior art, the beneficial effects of the utility model are：
1st, the bottom of the top of valve core case and oil circuit valve element offsets in this utility model, and hemisphere is withstood in the upper end for controlling valve element
Valve, semisphere valve sphere offsets with oil circuit valve element, and semisphere valve upper end offsets with hemisphere valve seat, inside oil circuit control one end and rocker arm shaft
Oilhole is connected, and the oil circuit control other end is arranged on rocking arm cavity bottom, and the one end of working connection I is connected with rocker arm shaft inside oilhole
Logical, the other end of working connection I is connected with rocking arm cavity top, and the one end of working connection II is connected with rocking arm cavity top, working connection
II other end is connected with the upper end of brake actuator.Valve element is controlled during brake release has two sections of strokes to realize classification
Pressure release, first paragraph stroke backs down semisphere valve, makes high brake pressure oil pressure start to reduce；Second segment stroke backs down oil circuit valve element, complete
Brake circuit pressure is laid down entirely；The classification pressure release can avoid the high brake pressure oil when braking off, and suddenly release produces larger punching
Hit and noise.
2nd, semisphere valve is withstood in the upper end that valve element is controlled in this utility model, and semisphere valve sphere offsets with oil circuit valve element, hemisphere
Valve seat is arranged in the inner groovy of oil circuit valve element, and semisphere valve upper end offsets with hemisphere valve seat；Therefore the control of semisphere valve is controlled
Valve element has guide frame with hemisphere valve seat so that sealed reliable in the course of work.
3rd, in this utility model control valve element, oil circuit valve element, semisphere valve, control spring and control spring structure can modules
Change such that it is able to realize generalization, exhaust rocker arm can be integrated in, compact conformation, assembling are simple, it is adaptable to which Special rocking is arm-type, top
The braking of formula, rocker arm integrated type or air valve yoke integrated engine is put, is had wide range of applications.
Description of the drawings
Fig. 1 is this utility model damped condition schematic diagram.
Fig. 2 is the non-brake operating mode schematic diagram of this utility model.
In figure, rocking arm 1, brake actuator 2, bulb edge cylinder 3 controls valve element 4, controls spring I 5, valve core case 6, oil circuit
Valve element 7, semisphere valve 8, hemisphere valve seat 9 controls spring II 10, plug 11, rocker arm shaft 12, rocking arm roller 13, roller pin 14, control
Oil circuit 15, working connection I 16, working connection II 17.
Specific embodiment
This utility model is described in further detail below in conjunction with description of the drawings and specific embodiment.
Referring to Fig. 1 to Fig. 2, a kind of engine braking oil circuit control structure is that the control that engine braking is opened/closed is oily
Road,
The structure is adapted to all of exhaust rocker arm 1 with engine braking；Including rocking arm 1, brake actuator 2, bulb
Edge cylinder 3, control valve element 4, valve core case 6, oil circuit valve element 7, semisphere valve 8, hemisphere valve seat 9, plug 11, the working connection I of oil circuit control 15
16 and working connection II 17.Described rocking arm 1 is nested with rocker arm shaft 12, i.e., rocking arm 1 is supported by rocker arm shaft 12；Described braking is held
Row mechanism 2 is arranged on the valve end of rocking arm 1, and the bulb edge cylinder 3 is connected with the bulb of brake actuator 2, constitutes as foot
Structure.The cam end of rocking arm 1 is provided with rocking arm roller 13, and in the described endoporus of rocking arm roller 13 roller pin 14 is provided with.
Referring to Fig. 1 to Fig. 2, described control valve element 4, valve core case 6, oil circuit valve element 7, semisphere valve 8 and hemisphere valve seat 9 are all provided with
Put in the cavity of rocking arm 1, described plug 11 is arranged on the cavity port of rocking arm 1 and is fixed on rocking arm 1.Described control valve element
4 bottoms for being arranged on the cavity of rocking arm 1, described valve core case 6 is fixed in the cavity of rocking arm 1, bottom and the control valve element of valve core case 6
Control spring I 5 is provided between 4；The top of valve core case 6 and the bottom of oil circuit valve element 7 offset, and the upper end for controlling valve element 4 is withstood
Semisphere valve 8.The described sphere of semisphere valve 8 offsets with oil circuit valve element 7, and the hemisphere valve seat 9 is arranged on the inner groovy of oil circuit valve element 7
It is interior, and the upper end of semisphere valve 8 offsets with hemisphere valve seat 9；Control spring II is provided between described hemisphere valve seat 9 and plug 11
10。
Referring to Fig. 1 to Fig. 2, described one end of oil circuit control 15 is connected with the inside oilhole of rocker arm shaft 12, oil circuit control 15
The other end is arranged on the cavity bottom of rocking arm 1, and oil circuit control 15 is used to control the motion of valve element 4.Described one end of working connection I 16 with
The inside oilhole of rocker arm shaft 12 is connected, and the other end of working connection I 16 is connected with the cavity top of rocking arm 1；Described working connection II 17
One end is connected with the cavity top of rocking arm 1, and the other end of working connection II 17 is connected with the upper end of brake actuator 2.
Referring to Fig. 1, under damped condition, oil circuit control 15 controls valve element 4 due to controlling the active force of spring I 5 without hydraulic oil
Control valve element 4 is set down to move；Now semisphere valve 8 and the valve element 4 out of hand of hemisphere valve seat 9 are supported, in control spring II 10
It is descending under effect, so as to drive the descending blocking working connection II 17 of oil circuit valve element 7 to connect with working connection I 16, oil circuit valve element 7 and valve element
Seat 6 completely encloses working connection I 16 and the upper area of semisphere valve 8, forms braking.
Referring to Fig. 2, under non-brake operating mode, oil circuit control 15 is oil-filled, and control valve element 4 goes upward in the presence of control oil pressure
At maximum displacement, now semisphere valve 8 and oil circuit valve element 7 are opened, and working connection I 16 passes through between oil circuit valve element 7 and valve core case 6
Gap connects with the working connection II 17 in rocking arm 12.In brake release, oil circuit control 15 is oil-filled, and control valve element 4 is in control oil
It is up in the presence of pressure, hydraulic oil and main oil that valve element 4 backs down semisphere valve 8, working connection I 16 and the top of semisphere valve 8 are controlled first
Road II 17 is connected by the gap between semisphere valve 8 and oil circuit valve element 7, and high pressure oil pressure starts to reduce；With control valve element 4 after
It is continuous up, push oil circuit valve element 7 open, now working connection I 16 is directly connected with working connection II 17, high-voltage oil cavity pressure releases, braking
Release.Therefore, pressure releases twice are included during brake release, is for the first time to open semisphere valve 8, first lay down a part
Pressure；It is for the second time the opening of oil circuit valve element 7, high-voltage oil cavity is connected completely with working connection I 16 and working connection II 17；Therefore realize
Classification pressure release, it is to avoid the high brake pressure oil release suddenly when braking off produces larger impact and noise.
Referring to Fig. 1 to Fig. 2, the control valve element 4, oil circuit valve element 7, semisphere valve 8, control spring I 5 and control in this utility model
Structure generally applicableization of spring processed II 10, it is only necessary to do Aided design for the different structures of rocking arm 1；Meanwhile, this utility model exists
While ensureing that valve actuating mechanism is contacted, working connection I 16 and working connection II 17 can play a part of to be lubricated and brake, and can have
The quick releasing braking of effect, and requirement of the brakes to machine oil degree of purity is reduced, simplify whole control and brake circuit.
Above content is to combine specific preferred implementation further detailed description of the utility model, it is impossible to
Identification is of the present utility model to be embodied as being confined to these explanations.For the ordinary skill of this utility model art
For personnel, without departing from the concept of the premise utility, some simple deduction or replace, said structure can also be made
Protection domain of the present utility model should be all considered as belonging to.
Claims (2)
1. a kind of engine braking oil circuit control structure, including rocking arm（1）, brake actuator（2）, bulb edge cylinder（3）, it is described
Rocking arm（1）It is nested with rocker arm shaft（12）On, the brake actuator（2）It is arranged on rocking arm（1）Valve end, the bulb
Edge cylinder（3）With brake actuator（2）Bulb be connected, it is characterised in that：Also include control valve element（4）, valve core case
（6）, oil circuit valve element（7）, semisphere valve（8）, hemisphere valve seat（9）, plug（11）, oil circuit control（15）, working connection I（16）With main oil
Road II（17）, described control valve element（4）, valve core case（6）, oil circuit valve element（7）, semisphere valve（8）With hemisphere valve seat（9）It is respectively provided with
In rocking arm（1）In cavity, described control valve element（4）It is arranged on rocking arm（1）The bottom of cavity, described valve core case（6）It is fixed
In rocking arm（1）In cavity, valve core case（6）Bottom and control valve element（4）Between be provided with control spring I（5）, valve core case（6）
Top and oil circuit valve element（7）Bottom offset, control valve element（4）Upper end withstand semisphere valve（8）, described semisphere valve（8）
Sphere and oil circuit valve element（7）Offset, the hemisphere valve seat（9）It is arranged on oil circuit valve element（7）Inner groovy in, and semisphere valve（8）
Upper end and hemisphere valve seat（9）Offset, described plug（11）It is arranged on rocking arm（1）Cavity port and it is fixed on rocking arm（1）On, institute
The hemisphere valve seat stated（9）With plug（11）Between be provided with control spring II（10）, described oil circuit control（15）One end with shake
Arm axle（12）Internal oilhole is connected, oil circuit control（15）The other end is arranged on rocking arm（1）Cavity bottom, described working connection I
（16）One end and rocker arm shaft（12）Internal oilhole is connected, working connection I（16）The other end and rocking arm（1）Cavity top is connected,
Described working connection II（17）One end and rocking arm（1）Cavity top is connected, working connection II（17）The other end and braking execution machine
Structure（2）Upper end be connected.
2. a kind of engine braking oil circuit control structure according to claim 1, it is characterised in that：Described control valve element
（4）For three-level ladder shaft-like structure, valve element is controlled（4）Middle part ladder be nested with valve core case（6）It is interior, control valve element（4）It is upper
Withstand semisphere valve in ladder top in portion（8）, the control spring I（5）It is arranged on control valve element（4）Lower step top surface and valve element
Seat（6）Bottom between.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621145323.0U CN206175016U (en) | 2016-10-21 | 2016-10-21 | Engine brake control circuit structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621145323.0U CN206175016U (en) | 2016-10-21 | 2016-10-21 | Engine brake control circuit structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206175016U true CN206175016U (en) | 2017-05-17 |
Family
ID=58680516
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621145323.0U Active CN206175016U (en) | 2016-10-21 | 2016-10-21 | Engine brake control circuit structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206175016U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106382140A (en) * | 2016-10-21 | 2017-02-08 | 东风商用车有限公司 | Engine brake control oil line structure |
| CN107143394A (en) * | 2017-05-27 | 2017-09-08 | 东风商用车有限公司 | A kind of split type rocker arm-braking mechanism of commercial car large diesel engine |
-
2016
- 2016-10-21 CN CN201621145323.0U patent/CN206175016U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106382140A (en) * | 2016-10-21 | 2017-02-08 | 东风商用车有限公司 | Engine brake control oil line structure |
| CN107143394A (en) * | 2017-05-27 | 2017-09-08 | 东风商用车有限公司 | A kind of split type rocker arm-braking mechanism of commercial car large diesel engine |
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| GR01 | Patent grant |