CN111441840A - Air leakage brake integrated on rocker arm seat - Google Patents
Air leakage brake integrated on rocker arm seat Download PDFInfo
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- CN111441840A CN111441840A CN202010353881.0A CN202010353881A CN111441840A CN 111441840 A CN111441840 A CN 111441840A CN 202010353881 A CN202010353881 A CN 202010353881A CN 111441840 A CN111441840 A CN 111441840A
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- arm seat
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- piston
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- 238000009434 installation Methods 0.000 claims abstract description 24
- 239000003921 oil Substances 0.000 description 111
- 238000010586 diagram Methods 0.000 description 9
- 239000010705 motor oil Substances 0.000 description 6
- 230000009471 action Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000011900 installation process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L13/00—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
- F01L13/06—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for braking
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/12—Transmitting gear between valve drive and valve
- F01L1/18—Rocking arms or levers
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Valve Device For Special Equipments (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
Abstract
The invention relates to an air release brake integrated on a rocker arm seat, which comprises a first rocker arm seat body, a second rocker arm seat body, a third rocker arm seat body, an air inlet and outlet rocker arm and a rocker arm shaft, wherein the air inlet and outlet rocker arm is arranged on the rocker arm shaft, the first rocker arm seat body, the second rocker arm seat body and the third rocker arm seat body are respectively arranged on the rocker arm shaft, the first rocker arm seat body comprises a first rocker arm seat body, a first control valve and a first execution piston, the first control valve is positioned on the outer side of one end of the first rocker arm seat body, the first execution piston is positioned on the other side of the control valve, a first rocker arm shaft mounting hole and a first bolt fixing hole are arranged in the first rocker arm shaft mounting hole, and the first bolt fixing hole is positioned on the upper surface of the first rocker arm shaft mounting hole. The air release brake integrated on the rocker arm seat has the advantages of small volume and light weight, and reduces the installation height of an engine.
Description
Technical Field
The invention relates to an air release brake integrated on a rocker arm seat.
Background
The use of automobiles greatly improves the quality of life of people, but at the same time, the influence of automobiles also continuously puts forward higher standards for road operation. With the increasing traffic density, the loads of commercial passenger cars and trucks are increasing, the running speed is faster and faster, the requirements of operation cannot be met only by the traditional vehicle main brake system, and various accidents caused by the failure or the decline of the main brake system are endless.
With the help of the auxiliary braking system, the working pressure of the main braking system can be greatly reduced by the vehicle, the driving risk caused by fatigue or recession of the main braking system is effectively avoided, the maintenance cost of the vehicle is also effectively reduced, and the operation efficiency is improved.
Common types of auxiliary braking devices include engine brakes, hydraulic retarders, eddy current retarders, etc. The engine brake is taken as an auxiliary brake device which is most widely applied internationally, has the advantages of high integration level, light weight, high power density, good reliability, no time-lapse attenuation of brake performance, low price, no increase of the change of a whole vehicle and thermal load and the like, and is popular with more and more host factories and users; the air-leakage type engine brake has extremely high power density and cost performance, and becomes a preferred auxiliary braking scheme for various heavy-load commercial vehicles and motor buses. The existing air release type engine brake is generally independent, is arranged above an engine valve mechanism through one or more brake shells, has larger volume and weight, higher manufacturing cost, needs professional personnel to install during installation and has large installation difficulty.
Disclosure of Invention
In view of the above disadvantages of the prior art, it is an object of the present invention to provide a relief brake integrated in a rocker arm seat, which is integrated in a rocker arm seat, and which has a small size, a light weight, a low installation height, and a low installation difficulty.
In order to achieve the above and other related objects, the present invention provides a release brake integrated on a rocker arm seat, including a first rocker arm seat body, a first intake and exhaust rocker arm and a rocker arm shaft, wherein the intake and exhaust rocker arm is mounted on the rocker arm shaft, the first rocker arm seat body includes a first body, a first control valve and a first execution piston, the first control valve is located at the outer side of one end of the first body, the first execution piston is located at the other side of the first control valve, a first rocker arm shaft mounting hole and a first bolt fixing hole are formed in the first body, the rocker arm shaft is mounted in the first rocker arm shaft mounting hole, and the first bolt fixing hole is located on the upper surface of the first rocker arm shaft mounting hole.
Preferably, the rocker arm seat further comprises a rocker arm seat body II, the rocker arm seat body II is installed on the rocker arm shaft, the rocker arm seat body II comprises a second oil duct, a rocker arm shaft installation hole II, a bolt fixing hole II, a control valve II, an electromagnetic valve and an execution piston II, the bolt fixing hole II is located on the upper surface of the rocker arm shaft installation hole II, the control valve II is located on one side of one end of the rocker arm shaft installation hole II, the execution piston II is located on the other side of the control valve II, the electromagnetic valve is located in an L-shaped cavity formed by the control valve II, the execution piston II and the rocker arm shaft installation hole II, and the second oil duct is located at the lower end of the rocker arm shaft installation hole II and is communicated with the rocker arm shaft installation hole II.
Preferably, a first oil passage and a second oil passage are arranged in the first rocker arm seat body, the first oil passage is communicated with the first rocker arm shaft mounting hole and the first control valve, and the second oil passage is communicated with the first control valve and the first actuating piston.
Preferably, the second rocker arm seat body further comprises a second first oil duct, a second oil duct, a second fourth oil duct and a second fifth oil duct, the second first oil duct is located between the second rocker arm shaft mounting hole and the second control valve, the second oil duct is located between the second control valve and the second execution piston, one end of the second fourth oil duct is communicated with the second rocker arm shaft mounting hole, the other end of the second rocker arm shaft mounting hole is communicated with the upper end of the electromagnetic valve, one end of the second fifth oil duct is connected with the lower end of the electromagnetic valve, and the other end of the second rocker arm shaft mounting hole is connected with the second oil duct.
Preferably, the rocker arm seat further comprises a third rocker arm seat body, the third rocker arm seat body is installed on the rocker arm shaft, the third rocker arm seat body is provided with a third body, and the length of the third body is smaller than that of the first body.
Preferably, the oil passages in the first rocker arm seat body and the third rocker arm seat body have the same structure, and the structure is the same as the oil passages among the second rocker arm shaft mounting hole, the second control valve and the second actuating piston in the second rocker arm seat body.
Preferably, the second control valve comprises a small spring, a valve core stop block, a valve core spring, a movable valve, a large spring and a first fixed gasket, the first fixed gasket is connected with the large spring, the small spring is located in the large spring, a valve core cavity is formed in the other end of the movable valve, the valve core spring is arranged in the valve core cavity, the lower end of the valve core spring is in contact with the valve core, the valve core is in contact with the valve core stop block, the lower end of the movable valve is communicated with the fifth oil duct, and the middle position of the movable valve is communicated with the second oil duct.
Preferably, the second actuating piston comprises an adjusting nut, an adjusting screw, a return spring and a stop block, the adjusting screw sequentially penetrates through the return spring and the stop block to be connected with the adjusting nut, and the upper end of the stop block is communicated with the second oil passage.
Preferably, the control valves in the first rocker arm seat body, the second rocker arm seat body and the third rocker arm seat body have the same structure, and the actuating pistons in the first rocker arm seat body, the second rocker arm seat body and the third rocker arm seat body have the same structure
In summary, the air release brake integrated on the rocker arm seat has the following beneficial effects: the original independent brake is integrated in the rocker arm seat, so that the size of the brake is reduced, and the mass of the brake is reduced; the brake is integrated in the rocker arm seat, so that the installation is more convenient and simpler, a special installation process is not needed, the technical requirements on installation workers are greatly reduced, and the installation is more convenient; the height of the whole engine is reduced, and the engine is convenient to mount.
Drawings
Fig. 1 is an overall structural schematic diagram of an engine brake.
Fig. 2 is a schematic structural diagram of a second rocker arm seat body.
Fig. 3 is a schematic structural diagram of the first rocker arm seat body.
Fig. 4 is a sectional view of the second rocker arm seat body for showing the second oil passage.
FIG. 5 is a cross-sectional view of the second rocker arm seat body for showing the second first oil passage.
FIG. 6 is a cross-sectional view of a second rocker arm seat body showing the second oil passage, the fourth oil passage, and the fifth oil passage.
FIG. 7 is a sectional view of a second rocker arm seat body, which is used for showing the structures of the second actuating piston and the second control valve and the relationship between the second actuating piston and each oil passage.
FIG. 8 is a schematic structural diagram of a first rocker arm seat body, illustrating the first oil passage and the first second oil passage.
Fig. 9 is a schematic structural diagram of a third rocker arm seat body, which is used for showing the schematic structural diagram of the third rocker arm seat body.
Fig. 10 is an enlarged view of a portion of the structure of fig. 7.
FIG. 11 is a schematic structural diagram of a second control valve and a second actuating piston when the solenoid valve is not activated, at the moment, the valve core is in contact with the valve core stop block, and the piston body is in contact with the lower end of the adjusting screw.
FIG. 12 is a schematic diagram of the second control valve and the second execution piston during oil filling after the electromagnetic valve is activated, at the moment, the valve core is separated from the valve core stop block, and the piston body is separated from the lower end of the adjusting screw.
FIG. 13 is a schematic diagram of the second control valve and the second actuating piston after oil filling is completed after the electromagnetic valve is activated, at this time, the valve core is in contact with the valve core stop block, and the piston body is separated from the lower end of the adjusting screw.
FIG. 14 is a cross-sectional view of the solenoid valve showing the T-shaped piston and the drain passage, the T-shaped piston being in phantom in the figure when draining oil.
1. A first rocker arm seat body; 2. a second rocker arm seat body; 3. a third rocker arm seat body; 4. an intake and exhaust rocker arm; 5. a rocker shaft; 6. an oil-way channel I; 7. an oil-road channel II; 11. a first body; 12. a first control valve; 13. an execution piston I; 14. a first oil duct; 15. a first second oil duct; 22. a second rocker shaft mounting hole; 23. a second bolt fixing hole; 24. a second control valve; 25. an execution piston II; 26. an electromagnetic valve; 31. a third body; 110. a first rocker shaft mounting hole; 111. a first bolt fixing hole; 201. a second oil passage; 202. a second oil passage; 203. a second oil duct II; 205. a second oil passage; 206. a fifth oil duct II; 240. a small spring; 241. a valve core stop block; 242. a valve core; 243. a spool spring; 244. a movable valve; 245. a large spring; 246. fixing a first gasket; 250. a piston cavity; 251. adjusting the nut; 252. an adjusting screw; 253. a return spring; 254. a stopper; 255. a piston body; 256. a snap ring; 257. a limiting table; 261. a T-shaped piston; 262. and an oil drainage channel.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.
Please refer to fig. 1 to 14. It should be understood that the structures, ratios, sizes, and the like shown in the drawings and described in the specification are only used for matching with the disclosure of the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions under which the present invention can be implemented, so that the present invention has no technical significance, and any structural modification, ratio relationship change, or size adjustment should still fall within the scope of the present invention without affecting the efficacy and the achievable purpose of the present invention. In addition, the terms "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms is not to be construed as a scope of the present invention.
As shown in fig. 1 to 14, the invention relates to a relief brake integrated in a rocker arm seat, which comprises at least one of a rocker arm seat body 1, a rocker arm seat body two 2 and a rocker arm seat body three 3, and an air inlet and outlet rocker arm 4 and a rocker arm shaft 5, wherein the number and the sequence of the rocker arm seat body 1, the rocker arm seat body two 2 and the rocker arm seat body three 3 are determined according to the actual situation of engine space, the number and the sequence of the rocker arm seat body 1, the combination of the rocker arm seat body one 1, the combination of the rocker arm seat body two 2, the combination of the rocker arm seat body three 3, the combination of two or three of the rocker arm seat body one 1, the rocker arm seat body two 2 and the rocker arm seat body three 3 are determined, in the embodiment, the rocker arm seat body one 1, the rocker arm seat body two 2 and the rocker arm seat body three 3 are included, the arrangement mode is as shown in fig. 1, the air inlet and outlet rocker arm 4 is mounted on the, the rocker arm seat comprises a rocker arm seat body I1, a rocker arm seat body II 2 and a rocker arm seat body III 3, wherein the rocker arm seat body I1 is respectively installed on the rocker arm shaft 5, the rocker arm seat body I1 comprises a body I11, a control valve I12 and an execution piston I13, the control valve I12 is located on the outer side of one end of the body I11, the execution piston I13 is located on the other side of the control valve I12, a rocker arm shaft installation hole I110 and a bolt fixing hole I111 are arranged in the body I11, the rocker arm shaft 5 is installed in the rocker arm shaft installation hole I110, the bolt fixing hole I111 is located on the upper surface of the rocker arm shaft installation hole I110, the rocker arm shaft installation hole I110 is used for installing the body I11, and the bolt fixing hole I111 is used for fixing the body I11 and the rocker arm shaft.
In this embodiment, the rocker arm base body two 2 includes a second oil passage 201, a rocker arm shaft mounting hole two 22, a bolt fixing hole two 23, a control valve two 24, an electromagnetic valve 26 and an actuating piston two 25, the bolt fixing hole two 23 is located on the upper surface of the rocker arm shaft mounting hole two 22, the bolt fixing hole two 23 is used for connecting the rocker arm base body two 2 and the rocker arm shaft 5, the control valve two 24 is located on one side of one end of the rocker arm shaft mounting hole two 22, the control valve two 24 is used for controlling whether oil in the first oil passage two 202 can be continuously supplied to a subsequent oil passage, so as to control the operation of the actuating piston two 25, the actuating piston two 25 is located on the other side of the control valve two 24, the electromagnetic valve 26 is located in an L-type cavity formed by the control valve two 24, the actuating piston two 25 and the rocker arm shaft mounting hole two 22, and the second oil passage is located at the lower end of the rocker arm shaft mounting hole two 22 and is communicated with the rocker arm shaft mounting hole two 201.
In this embodiment, a first oil passage 14 and a second oil passage 15 are provided in the rocker arm base body 1, the first oil passage 14 communicates with the first rocker shaft mounting hole 110 and the first control valve 12, the second oil passage 15 communicates with the upper end of the first control valve 12 and the first actuating piston 13, the first control valve 12 is used for controlling the communication and disconnection of the first oil passage 14 and the first second oil passage 15, and the first actuating piston 13 is used for pushing a valve bridge at the lower end of the first actuating piston 13 to move down.
In this embodiment, the second rocker arm seat body 2 further includes a second first oil passage 202, a second oil passage 203, a second fourth oil passage 205, and a second fifth oil passage 206, the second first oil passage 202 is located between the second rocker arm shaft mounting hole 22 and the second control valve 24, the second oil passage 203 is located between the second control valve 24 and the second actuating piston 25, one end of the second fourth oil passage 205 is communicated with the second rocker arm shaft mounting hole 22, the other end of the second oil passage is communicated with the upper end of the electromagnetic valve 26, one end of the fifth oil passage is connected to the lower end of the electromagnetic valve 26, the other end of the fifth oil passage is connected to the second oil passage 201, and the electromagnetic valve 26 is configured to control communication and closing between the second fourth oil passage 205 and the second fifth oil passage 206.
In this embodiment, the third rocker seat body 3 is provided with a third body 31, and the length of the third body 31 is smaller than the length of the first body 11.
In this embodiment, the oil passages in the first rocker seat body 1 and the third rocker seat body 3 have the same structure, and the oil passages are the same as those between the second rocker shaft mounting hole 22, the second control valve 24 and the second actuator piston 25 in the second rocker seat body 2.
In this embodiment, the second control valve 24 includes a small spring 240, a spool stopper 241, a spool 242, a spool spring 243, a movable valve 244, a large spring 245 and a first fixed washer 246, the first fixed gasket 246 is connected with the large spring 245, the other end of the movable valve 244 is provided with a valve core cavity, the valve core cavity is internally provided with the valve core spring 243, the lower end of the valve core spring 243 is contacted with the valve core 242, the small spring 240 is located within the large spring 245, the spool 242 is in contact with the spool stopper 241, the lower end of the movable valve 244 is communicated with the second fifth oil passage 206, the middle position of the movable valve 244 is communicated with the second oil passage 203, when the oil pressure in the second first oil passage 202 becomes large, the oil pressure pushes the spool 242 to move upward, and at the same time, the whole movable valve 244 moves upwards to communicate the second first oil passage 202 and the second oil passage 203.
In this embodiment, the second actuating piston 25 includes a piston chamber 250, an adjusting nut 251, an adjusting screw 252, a return spring 253, a piston body 255 and a stopper 254, one end of the adjusting screw 252 passes through the return spring 253 and the stopper 254 in sequence, connected with the adjusting nut 251, the other end of the adjusting screw 252 is inserted into the piston body 255, and the piston body 255 is positioned in the piston cavity 250, the upper end of the piston cavity 250 is communicated with the second oil passage 203, when the oil pressure in the second oil passage 203 is increased, due to the communication between the second oil passage 203 and the piston cavity 250, the oil pressure can push the stopper 254 to compress the return spring 253, so that the stopper 254 is lowered, the stopper 254 stops the piston body 255 from further lowering under the action of the limit table 257 on the adjusting screw 252, and at the moment, the lower ends of the piston body 255 and the adjusting screw 252 are separated; when the oil pressure in the second oil passage 203 disappears, the return spring 253 pushes the stopper 254 to move upwards, and at this time, the stopper 254 drives the piston body 255 to move upwards under the blocking of the edge snap ring 256 and contacts with the lower end of the adjusting screw 252.
In this embodiment, the control valves in the first rocker seat body 1, the second rocker seat body 2 and the third rocker seat body 3 have the same structure, and the actuating pistons in the first rocker seat body 1, the second rocker seat body 2 and the third rocker seat body 3 have the same structure.
When the rocker arm seat body II 2 works, an oil path channel I6 and an oil path channel II 7 are arranged in the rocker arm shaft 5, one end of the oil path channel I6 is connected with the engine, the other end of the oil path channel I6 is connected with the second oil channel 201 and is connected with the inlet at the lower end of the electromagnetic valve 26 through the fifth oil channel II 206, and the oil path channel II 7 is communicated with the outlet at the upper end of the electromagnetic valve 26 through the fourth oil channel II 205. The opening and closing of the whole air-escape brake are realized by the opening and closing of the whole electromagnetic valve 26: when solenoid valve 26 is closed, oil upstream of solenoid valve 26 cannot pass through solenoid valve 26, at which point there is no oil downstream of solenoid valve 26, and control valve two 24 and actuator piston two 25 cannot be activated, as in fig. 11; when the electromagnetic valve 26 is opened, the engine oil in the engine enters the electromagnetic valve 26 through the second oil passage 201 and the fifth oil passage 206, and continues to enter the second oil passage 7 along the second fourth oil passage 205, and then enters the second rocker arm seat body 2 and the second first oil passage 202, the engine oil entering the second first oil passage 202 enters the bottom of the second control valve 24, due to the existence of the oil pressure, the oil pressure pushes the movable valve 244 to move upwards, when the movable valve 244 rises to a certain height, the second first oil passage 202 is communicated with the second oil passage 203, at this time, the engine oil enters the second actuating piston 25, under the action of the oil pressure, the stopper 254 moves downwards, and pushes the piston body 255 to move downwards and push the valve, see fig. 12; when the piston cavity 250 is filled with engine oil, as shown in fig. 13, the oil pressure in the whole oil path reaches a balanced state, and the valve core 242 is pressed against the valve core stop 241 under the action of the valve core spring 243, so that the oil paths of the first oil path two 202 and the second oil path two 203 are disconnected; referring to fig. 14, when the electromagnetic valve 26 is closed, the T-shaped piston is located at the dotted line position, the engine oil of the second control valve 24 and the second actuating piston 25 flows back into the second first oil passage 202 and the second oil passage 7 under the action of the small spring (240) inside the T-shaped piston 261, and because the lower end of the T-shaped piston 261 is in a closed state, the engine oil can only reach the purpose of oil drainage from the upper end of the T-shaped piston 261 through the oil drainage passage 262; when the solenoid valve is opened, the T-shaped piston 261 moves downward, and the oil passage at the upper end of the T-shaped piston 261 is opened, so that an oil-filled state as shown in FIG. 12 is formed.
In summary, the air release brake integrated on the rocker arm seat has the following beneficial effects: the original independent brake is integrated in the rocker arm seat, so that the size of the brake is reduced, and the mass of the brake is reduced; the brake is integrated in the rocker arm seat, so that the installation is more convenient and simpler, a special installation process is not needed, the technical requirements on installation workers are greatly reduced, and the installation is more convenient; the height of the whole engine is reduced, and the engine is convenient to mount. Therefore, the invention overcomes various defects of the prior art and has high industrial utilization value and practical value.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (9)
1. The utility model provides an integrated in disappointing stopper of rocking arm seat which characterized in that: the rocker arm seat comprises a rocker arm seat body I (1), an air inlet and exhaust rocker arm (4) and a rocker arm shaft (5), wherein the air inlet and exhaust rocker arm (4) is installed on the rocker arm shaft (5), the rocker arm seat body I (1) comprises a body I (11), a control valve I (12) and an execution piston I (13), the control valve I (12) is located on the outer side of one end of the body I (11), the execution piston I (13) is located on the other side of the control valve I (12), a rocker arm shaft installation hole I (110) and a bolt fixing hole I (111) are arranged in the body I (11), the rocker arm shaft (5) is installed in the rocker arm shaft installation hole I (110), and the bolt fixing hole I (111) is located on the upper surface of the rocker arm shaft installation hole I (110).
2. The run-flat brake integrated on a rocker arm seat of claim 1, further comprising a second rocker arm seat body (2), wherein the first rocker arm seat body (2) is mounted on the rocker arm shaft (5), the second rocker arm seat body (2) comprises a second oil passage (201), a second rocker arm shaft mounting hole (22), a second bolt fixing hole (23), a second control valve (24), a solenoid valve (26) and a second actuator piston (25), the second bolt fixing hole (23) is positioned on the upper surface of the second rocker arm shaft mounting hole (22), the second control valve (24) is positioned at one side of one end of the second rocker arm shaft mounting hole (22), the second actuator piston (25) is positioned at the other side of the second control valve (24), the solenoid valve (26) is positioned in an L-type cavity formed by the second control valve (24), the second actuator piston (25) and the second rocker arm shaft mounting hole (22), and the second rocker arm shaft mounting hole (22) is communicated with the second rocker arm shaft mounting hole (22), and the second oil passage (201) is positioned at the lower end of the second rocker arm shaft mounting hole (22).
3. The run-flat brake integrated into a rocker arm seat of claim 1, wherein: the rocker arm seat comprises a rocker arm seat body I (1), wherein a first oil duct I (14) and a second oil duct I (15) are arranged in the rocker arm seat body I (1), the first oil duct I (14) is communicated with a rocker arm shaft mounting hole I (110) and a control valve I (12), and the second oil duct I (15) is communicated with the upper end of the control valve I (12) and the upper end of an actuating piston I (13).
4. The run-flat brake integrated into a rocker arm seat of claim 2, wherein: the second rocker arm seat body (2) further comprises a second first oil duct (202), a second oil duct (203), a second fourth oil duct (205) and a second fifth oil duct (206), the second first oil duct (202) is located between the second rocker arm shaft mounting hole (22) and the second control valve (24), the second oil duct (203) is located between the second control valve (24) and the second actuating piston (25), one end of the second fourth oil duct (205) is communicated with the second rocker arm shaft mounting hole (22), the other end of the second fourth oil duct is communicated with the upper end of the electromagnetic valve (26), one end of the second fifth oil duct (206) is connected with the lower end of the electromagnetic valve (26), and the other end of the second oil duct is connected with the second oil duct (201).
5. The run-flat brake integrated into a rocker arm seat of claim 1, wherein: the rocker arm seat is characterized by further comprising a rocker arm seat body III (3), the rocker arm seat body I (3) is installed on the rocker arm shaft (5), a body III (31) is arranged on the rocker arm seat body III (3), and the length of the body III (31) is smaller than that of the body I (11).
6. The run-flat brake integrated into a rocker arm seat of claim 5, wherein: the structure of the oil ducts in the first rocker arm seat body (1) and the third rocker arm seat body (3) is the same, and the structure of the oil ducts between the second rocker arm shaft mounting hole (22), the second control valve (24) and the second actuating piston (25) in the second rocker arm seat body (2) is the same.
7. The run-flat brake integrated into a rocker arm seat of claim 6, wherein: the second control valve (24) comprises a small spring (240), a valve core stop block (241), a valve core (242), a valve core spring (243), a movable valve (244), a large spring (245) and a first fixed gasket (246), the first fixed gasket (246) is connected with the large spring (245), the small spring (240) is located in the large spring (245), a valve core cavity is formed in the other end of the movable valve (244), the valve core spring (243) is arranged in the valve core cavity, the lower end of the valve core spring (243) is in contact with the valve core (242), the valve core (242) is in contact with the valve core stop block (241), the lower end of the movable valve (244) is communicated with the fifth oil duct II (206), and the middle position of the movable valve (244) is communicated with the second oil duct II (203).
8. The run-flat brake integrated into a rocker arm seat of claim 6, wherein: the second execution piston (25) comprises a piston cavity (250), an adjusting nut (251), an adjusting screw (252), a return spring (253), a piston body (255) and a stop block (254), one end of the adjusting screw (252) sequentially penetrates through the return spring (253) and the stop block (254) and is connected with the adjusting nut (251), the other end of the adjusting screw (252) is inserted into the piston body (255), the piston body (255) is located in the piston cavity (250), and the upper end of the piston cavity (250) is communicated with the second oil passage (203).
9. The run-flat brake integrated into a rocker arm seat of claim 8, wherein: the structure of the control valve in the rocker arm seat body I (1), the structure of the control valve in the rocker arm seat body II (2) and the structure of the control valve in the rocker arm seat body III (3) are the same, and the structure of the actuating piston in the rocker arm seat body I (1), the structure of the control valve in the rocker arm seat body II (2) and the structure of the actuating piston in the rocker arm seat body III (3) are the same.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010353881.0A CN111441840B (en) | 2020-04-29 | 2020-04-29 | Gas leakage brake integrated on rocker arm seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010353881.0A CN111441840B (en) | 2020-04-29 | 2020-04-29 | Gas leakage brake integrated on rocker arm seat |
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| CN201751541U (en) * | 2010-07-09 | 2011-02-23 | 青岛智远汽车部件有限公司 | Electric control engine discharging brake |
| CN203271927U (en) * | 2013-06-08 | 2013-11-06 | 深圳市特尔佳科技股份有限公司 | Engine air leakage type brake |
| CN203685398U (en) * | 2014-01-25 | 2014-07-02 | 湖北广奥减振器制造有限公司 | Exhaust braking device of engine |
| CN205876420U (en) * | 2016-06-30 | 2017-01-11 | 皆可博(苏州)车辆控制系统有限公司 | Disappointing formula engine brake of components of a whole that can function independently is opened to single valve |
| CN111963270A (en) * | 2020-08-28 | 2020-11-20 | 皆可博(苏州)车辆控制系统有限公司 | Active pressure reducing device |
| CN212563364U (en) * | 2020-04-29 | 2021-02-19 | 皆可博(苏州)车辆控制系统有限公司 | Air leakage brake integrated on rocker arm seat |
| CN112673152A (en) * | 2018-07-13 | 2021-04-16 | 伊顿智能动力有限公司 | Rocker arm based bleeder engine braking |
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| CN201751541U (en) * | 2010-07-09 | 2011-02-23 | 青岛智远汽车部件有限公司 | Electric control engine discharging brake |
| CN203271927U (en) * | 2013-06-08 | 2013-11-06 | 深圳市特尔佳科技股份有限公司 | Engine air leakage type brake |
| CN203685398U (en) * | 2014-01-25 | 2014-07-02 | 湖北广奥减振器制造有限公司 | Exhaust braking device of engine |
| CN205876420U (en) * | 2016-06-30 | 2017-01-11 | 皆可博(苏州)车辆控制系统有限公司 | Disappointing formula engine brake of components of a whole that can function independently is opened to single valve |
| CN112673152A (en) * | 2018-07-13 | 2021-04-16 | 伊顿智能动力有限公司 | Rocker arm based bleeder engine braking |
| CN212563364U (en) * | 2020-04-29 | 2021-02-19 | 皆可博(苏州)车辆控制系统有限公司 | Air leakage brake integrated on rocker arm seat |
| CN111963270A (en) * | 2020-08-28 | 2020-11-20 | 皆可博(苏州)车辆控制系统有限公司 | Active pressure reducing device |
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| CN111441840B (en) | 2024-09-10 |
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