CN203271927U - Engine air leakage type brake - Google Patents
Engine air leakage type brake Download PDFInfo
- Publication number
- CN203271927U CN203271927U CN 201320330056 CN201320330056U CN203271927U CN 203271927 U CN203271927 U CN 203271927U CN 201320330056 CN201320330056 CN 201320330056 CN 201320330056 U CN201320330056 U CN 201320330056U CN 203271927 U CN203271927 U CN 203271927U
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- piston
- valve
- oil
- way valve
- housing
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Abstract
The utility model relates to an engine air leakage type brake which comprises a shell, an electromagnetic valve, a one-way valve and an oil channel, wherein the electromagnetic valve and the one-way valve are sequentially arranged on the shell through the oil channel, the oil channel is respectively communicated with a piston assembly and the electromagnetic valve, the one-way valve comprises a valve body, a valve rod connected with the bottom of the valve body through a thread, a reset spring on the valve rod, and a steel ball at the end part of the valve rod, an oil inlet piston is arranged between the one-way valve and the shell and is sealed by a spring seat at the top, the bottom of the oil inlet piston is sealed by an oil leakage baffle block; and the piston rod assembly comprises a piston rod, a screw, a nut screwed in the screw, a through hole, a limit pin, a spring baffle plate and a reset spring, wherein the end head of the screw is arranged in a piston cavity, the end tail of the screw penetrates out of the shell from inside to outside, the through hole is formed in the end head of the screw along the radial direction and is communicated with a through hole in the piston wall, the limit pin respectively penetrates through the through holes of the piston and the regulating screw, the spring baffle plate is positioned at the opening end of the piston and extends into the piston wall along the radial direction, and the reset spring is sleeved between the end head of the screw and the spring baffle plate.
Description
Technical field
The utility model relates to engine brake, particularly a kind of motor deflation type break.
Background technique
CN201110378295.2 discloses a kind of engine brake, and its purpose is to provide a kind of long service life, good braking effect and can effectively improves the engine brake of vehicle safety.this technological scheme: described engine brake, comprise housing (1), be located at successively the solenoid valve on housing (1), one-way valve and piston assembly, also be provided with the oil duct one (11) that is communicated with solenoid valve filler opening (55) in described housing (1), the oil duct three (13) that connected electromagnetic valve oil outlet (56) and oil duct two (12) and an end of one-way valve filler opening are communicated with the one-way valve oil outlet, described housing (1) is provided with a cavity, the other end of above-mentioned oil duct three (13) is communicated with described cavity and its joint is positioned at the bottom of described cavity, it is characterized in that, described piston assembly comprises the piston rod (21) that is fixed on cavity bottom and is set in piston (22) on piston rod (21), described piston (22) and cavity be sealed and matched and this piston (22) can be in oil duct three (13) under the effect of hydraulic fluid pressure along axially outwards movement of cavity, be provided with the limit structure of limited piston (22) moving range between described piston rod (21) and piston (22), also be provided with the return unit that after piston (22) moving displacement, it is resetted between described piston rod (21) and piston (22).Its deficiency is: the braking force of motor and exhaust valve aperture less stable.
The model utility content
The purpose of this utility model is to provide that a kind of oil-feed piston stroke is short, and draining speed is fast, realizes the quick response of engine braking, the motor deflation type break of fast discharging.
Technical solution of the present utility model is described motor deflation type break, comprise housing, through oil duct be set in sequence in solenoid valve, one-way valve and piston assembly on housing, with solenoid valve and one-way valve the coconnected oil input channel of housing, with one-way valve and its piston assembly active chamber at the coconnected oil duct of housing, its special way is:
The steel ball that the Returnning spring that is set with on the valve rod that described one-way valve is connected by valve body, valve body bottom thread, valve rod, valve rod end is provided with forms;
be provided with the oil-feed piston between described one-way valve and described housing, described oil-feed piston is by the spring seat encapsulation at top, and the bottom of described oil-feed piston is encapsulated by the draining block, described piston assembly is by piston, pack in piston cavity and pass from inside to outside the adjusting screw of housing with the end tail with the termination, screw in the also adjusting nut of locking from the adjusting screw of outside, the perforation that connects with the piston wall perforation is radially offered in the termination of adjusting screw, penetrate respectively the position limit pin in the perforation of piston and adjusting screw, be arranged in the spring stop that the piston opening end radially stretches into respectively piston wall and consist of, the return spring that is sleeved between the nail handle of adjusting screw termination and spring stop on the nail bar forms.
As preferably: be arranged in housing after described oil-feed piston suit one-way valve, and radially offer the oil duct that connects with the piston assembly active chamber at the position of corresponding one-way valve valve rod.
As preferably: described spring seat radially arranges by the draining spring that is set with between two T-shaped fitting seats that are opposed shape, two T-shaped fitting seats, the opening end that is arranged in described spring seat and housing the spring stop that stretches into shell body wall and consist of and forms.
As preferably: described T-shaped fitting seat is comprised of the cylinder that is convexly equipped with on pedestal, pedestal; The pedestal of described two T-shaped fitting seats is connected to respectively on spring stop, oil-feed piston, and the diameter of described cylinder is less than the diameter of described pedestal.
Another technical solution of the present utility model is described motor deflation type break, comprise housing, through oil duct be set in sequence in solenoid valve, one-way valve and piston assembly on housing, with solenoid valve and one-way valve the coconnected oil input channel of housing, with one-way valve and its piston assembly active chamber at the coconnected oil duct of housing, its special way is:
The steel ball that the Returnning spring that is set with on the valve rod that described one-way valve is connected by valve body, valve body bottom thread, valve rod, valve rod end is provided with forms;
Be provided with the oil-feed piston between described one-way valve and described housing, described oil-feed piston is by the spring seat encapsulation at top, and the bottom of described oil-feed piston is encapsulated by the draining block;
Be arranged in housing after described oil-feed piston suit one-way valve, and radially offer the oil duct that connects with the piston assembly active chamber at the position of corresponding one-way valve valve rod.Described spring seat radially arranges by the draining spring that is set with between two T-shaped fitting seats that are opposed shape, two T-shaped fitting seats, the opening end that is arranged in described spring seat and housing the spring stop that stretches into shell body wall and consist of and forms;
The top of described draining block is provided with the center projection for shutoff one-way valve bottom through-hole;
Described T-shaped fitting seat is comprised of the cylinder that is convexly equipped with on pedestal, pedestal;
The pedestal of described two T-shaped fitting seats is connected to respectively on spring stop, oil-feed piston, and the diameter of described cylinder is less than the diameter of described pedestal;
described piston assembly is by piston, pack in piston cavity and pass from inside to outside the adjusting screw of housing with the end tail with the termination, screw in the also adjusting nut of locking from the adjusting screw of outside, the perforation that connects with the piston wall perforation is radially offered in the termination of adjusting screw, penetrate respectively the position limit pin in the perforation of piston and adjusting screw, be arranged in the spring stop that the piston opening end radially stretches into respectively piston wall and consist of, the return spring that is sleeved between the nail handle of adjusting screw termination and spring stop on the nail bar forms.
Compared with prior art, the utility model has the advantages that the oil-feed piston stroke is short, draining speed is fast, and the engine braking response is fast, but the machine oil in the fast discharging oil duct.
Description of drawings
Fig. 1 is the structural profile view of the utility model motor deflation type break normal state.
Fig. 2 is the structural profile view of the utility model motor deflation type break braking state.
The primary clustering symbol description:
Housing 1 filler opening 11 solenoid valve 2 valve body 21 spool 22 mandrel 221 springs 222
Oil-feed piston 4 oil duct 41 draining block 5 projection 51 spring seat 6 pedestals 61
Adjusting nut 73 position limit pin 74 spring stop 75 return spring 76 oil input channel 81 oil ducts 82
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing:
See also shown in Figure 1, described motor deflation type break, comprise housing 1, through oil duct be set in sequence in solenoid valve 2, one-way valve 3 and piston assembly 7 on housing 1, with solenoid valve 2 and one-way valve 3 the coconnected oil input channel 81 of housing 1, with one-way valve 3 with its piston assembly active chamber 83 at the coconnected oil duct 82 of housing 1;
described solenoid valve 2 is by valve body 21, the spool 22 of valve body 21 inner chamber suits and the mandrel 221 of spool 22 bottom undergauges, be sleeved on the spring 222 on mandrel 221, the axle sleeve 223 that coordinates through axis hole with mandrel 221, the blanking cover 224 that axle sleeve 223 bottoms arrange, the valve ball 23 that blanking cover 224 bottoms arrange, run through blanking cover 224 center holes and with its end respectively against the valve rod 24 of axle sleeve 223 and valve ball 23, radially offer on valve body 21 the draining passage 25 of axle sleeve 223 with blanking cover 224 isolation, and valve ball 23 bottoms are offered the oil inlet passage 84 that connects with housing filler opening 11 vertically, the coil 26 that is sleeved in valve body 21 on spool 22 forms, between housing 1 inner chamber of draining passage 25 both sides and valve body 21, seal ring 27 is set.
The steel ball 34 that the Returnning spring 33 of suit on the valve rod 32 that described one-way valve 3 is connected by valve body 31, valve body 31 bottom thread, valve rod 32, valve rod 32 ends are provided with forms;
Be provided with oil-feed piston 4 between described one-way valve 3 and described housing 1, described oil-feed piston 4 is by spring seat 6 encapsulation at top, and the bottom of described oil-feed piston 4 is by 5 encapsulation of draining block;
Be arranged in housing 1 after described oil-feed piston 4 suit one-way valves 3, and radially offer the oil duct 41 that connects with piston assembly active chamber 83 at the position of corresponding one-way valve valve rod 32.The top of described draining block 5 is provided with the center projection 51 for shutoff one-way valve 3 bottom through-holes.
Described spring seat 6 radially arranges by the draining spring 63 that is set with between two T-shaped fitting seats that are opposed shape, two T-shaped fitting seats, the opening end that is arranged in described spring seat 6 and housing 1 spring stop 64 that stretches into housing 1 wall and consist of and forms.
Described T-shaped fitting seat is comprised of the cylinder 62 that is convexly equipped with on pedestal 61, pedestal 61; The pedestal 61 of described two T-shaped fitting seats is connected to respectively on spring stop 64, oil-feed piston 4, and the diameter of described cylinder 62 is less than the diameter of described pedestal 61.
described piston assembly 7 is by piston 71, pack in piston cavity and pass from inside to outside the adjusting screw 72 of housing 1 with the end tail with the termination, screw in the also adjusting nut 73 of locking from the adjusting screw 72 of outside, the perforation that connects with the piston wall perforation is radially offered in the termination of adjusting screw 72, penetrate respectively the position limit pin 74 in the perforation of piston and adjusting screw, be arranged in the spring stop 75 that piston 71 opening ends radially stretch into respectively piston wall and consist of, the return spring 76 that is sleeved between the nail handle of adjusting screw 72 terminations and spring stop 75 on the nail bar forms.
See also shown in Figure 2ly, the braking method of described motor deflation type break comprises the following steps:
⑴ solenoid valve 2 outage, oil input channel 81 cut-offs, active chamber 83 does not have oil to supply with, and this moment, piston 71 was pressed onto as shown in Figure 1 position, gap h of formation between piston 71 and exhaust valve 9, engine work by return spring 76;
⑵ during braking, give solenoid valve 2 energisings, open oil input channel 81 and end draining road 25, machine oil up pushes up oil-feed piston 4 by oil input channel 81, one-way valve 3 bottom through-holes break away from the center projection 51 of draining block 5, and machine oil enters downward 71 motions of active chamber 83 rear driving pistons through one-way valve 3;
⑶ when be in exhaust stroke when motor, exhaust valve 9 was opened by rocking arm, and piston 71 descends until limited pin 74 stops, and stopped when the top is to exhaust valve 9 otherwise piston 71 descends, until motor arrives exhaust stroke, exhaust valve 9 is opened by rocking arm;
⑷ piston 71 continues to descend, until limited pin 74 stops, piston 71 will stop exhaust valve 9 to be closed when exhaust valve 9 backhaul, because exhaust valve 9 has an aperture, makes motor form pumping loss during to compression stroke, realizes braking;
⑸ disconnect solenoid valve 2 when not needing to brake, the oil in oil duct releases from drain tap through draining passage 25;
⑹ oil-feed piston 5 moves downward and is backed down one-way valve 3 by draining block 5, and active chamber 83 oil release, and return spring 76 pushes up go back to original position with piston 71, at this moment engine work.
The above is only preferred embodiment of the present utility model, and all equalizations of doing according to the utility model claim scope change and modify, and all should belong to the covering scope of the utility model claim.
Claims (6)
1. motor deflation type break, comprise housing, through oil duct be set in sequence in solenoid valve, one-way valve and piston assembly on housing, with solenoid valve and one-way valve the coconnected oil input channel of housing, with one-way valve and its piston assembly active chamber at the coconnected oil duct of housing, it is characterized in that:
The steel ball that the Returnning spring that is set with on the valve rod that described one-way valve is connected by valve body, valve body bottom thread, valve rod, valve rod end is provided with forms;
Be provided with the oil-feed piston between described one-way valve and described housing, described oil-feed piston is by the spring seat encapsulation at top, and the bottom of described oil-feed piston is encapsulated by the draining block;
described piston assembly is by piston, pack in piston cavity and pass from inside to outside the adjusting screw of housing with the end tail with the termination, screw in the also adjusting nut of locking from the adjusting screw of outside, the perforation that connects with the piston wall perforation is radially offered in the termination of adjusting screw, penetrate respectively the position limit pin in the perforation of piston and adjusting screw, be arranged in the spring stop that the piston opening end radially stretches into respectively piston wall and consist of, the return spring that is sleeved between the nail handle of adjusting screw termination and spring stop on the nail bar forms.
2. motor deflation type break according to claim 1, is characterized in that: be arranged in housing after described oil-feed piston suit one-way valve, and radially offer the oil duct that connects with the piston assembly active chamber at the position of corresponding one-way valve valve rod.
3. motor deflation type break according to claim 1 is characterized in that: described spring seat radially arranges by the draining spring that is set with between two T-shaped fitting seats that are opposed shape, two T-shaped fitting seats, the opening end that is arranged in described spring seat and housing the spring stop that stretches into shell body wall and consist of and forms.
4. motor deflation type break according to claim 3, it is characterized in that: described T-shaped fitting seat is comprised of the cylinder that is convexly equipped with on pedestal, pedestal; The pedestal of described two T-shaped fitting seats is connected to respectively on spring stop, oil-feed piston, and the diameter of described cylinder is less than the diameter of described pedestal.
5. motor deflation type break according to claim 1, it is characterized in that: the top of described draining block is provided with the center projection for shutoff one-way valve bottom through-hole.
6. motor deflation type break, comprise housing, through oil duct be set in sequence in solenoid valve, one-way valve and piston assembly on housing, with solenoid valve and one-way valve the coconnected oil input channel of housing, with one-way valve and its piston assembly active chamber at the coconnected oil duct of housing, it is characterized in that:
The steel ball that the Returnning spring that is set with on the valve rod that described one-way valve is connected by valve body, valve body bottom thread, valve rod, valve rod end is provided with forms;
Be provided with the oil-feed piston between described one-way valve and described housing, described oil-feed piston is by the spring seat encapsulation at top, and the bottom of described oil-feed piston is encapsulated by the draining block;
Be arranged in housing after described oil-feed piston suit one-way valve, and radially offer the oil duct that connects with the piston assembly active chamber at the position of corresponding one-way valve valve rod;
The top of described draining block is provided with the center projection for shutoff one-way valve bottom through-hole;
Described spring seat radially arranges by the draining spring that is set with between two T-shaped fitting seats that are opposed shape, two T-shaped fitting seats, the opening end that is arranged in described spring seat and housing the spring stop that stretches into shell body wall and consist of and forms;
Described T-shaped fitting seat is comprised of the cylinder that is convexly equipped with on pedestal, pedestal; The pedestal of described two T-shaped fitting seats is connected to respectively on spring stop, oil-feed piston, and the diameter of described cylinder is less than the diameter of described pedestal;
described piston assembly is by piston, pack in piston cavity and pass from inside to outside the adjusting screw of housing with the end tail with the termination, screw in the also adjusting nut of locking from the adjusting screw of outside, the perforation that connects with the piston wall perforation is radially offered in the termination of adjusting screw, penetrate respectively the position limit pin in the perforation of piston and adjusting screw, be arranged in the spring stop that the piston opening end radially stretches into respectively piston wall and consist of, the return spring that is sleeved between the nail handle of adjusting screw termination and spring stop on the nail bar forms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320330056 CN203271927U (en) | 2013-06-08 | 2013-06-08 | Engine air leakage type brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320330056 CN203271927U (en) | 2013-06-08 | 2013-06-08 | Engine air leakage type brake |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203271927U true CN203271927U (en) | 2013-11-06 |
Family
ID=49502362
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320330056 Expired - Lifetime CN203271927U (en) | 2013-06-08 | 2013-06-08 | Engine air leakage type brake |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203271927U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103334839A (en) * | 2013-06-08 | 2013-10-02 | 深圳市特尔佳科技股份有限公司 | Bleeding-type brake for engine and braking method thereof |
| CN111441840A (en) * | 2020-04-29 | 2020-07-24 | 皆可博(苏州)车辆控制系统有限公司 | Air leakage brake integrated on rocker arm seat |
| CN112628301A (en) * | 2020-12-22 | 2021-04-09 | 贵州凯星液力传动机械有限公司 | Quick oil discharge structure of large-diameter rotary clutch oil cylinder |
-
2013
- 2013-06-08 CN CN 201320330056 patent/CN203271927U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103334839A (en) * | 2013-06-08 | 2013-10-02 | 深圳市特尔佳科技股份有限公司 | Bleeding-type brake for engine and braking method thereof |
| CN103334839B (en) * | 2013-06-08 | 2016-02-03 | 深圳市特尔佳科技股份有限公司 | Motor deflation type break and braking method thereof |
| CN111441840A (en) * | 2020-04-29 | 2020-07-24 | 皆可博(苏州)车辆控制系统有限公司 | Air leakage brake integrated on rocker arm seat |
| CN111441840B (en) * | 2020-04-29 | 2024-09-10 | 皆可博(苏州)车辆控制系统有限公司 | Gas leakage brake integrated on rocker arm seat |
| CN112628301A (en) * | 2020-12-22 | 2021-04-09 | 贵州凯星液力传动机械有限公司 | Quick oil discharge structure of large-diameter rotary clutch oil cylinder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: A1406, building 12, Shenzhen Bay science and technology ecological park, No. 18, Keji South Road, high tech Zone, Yuehai street, Nanshan District, Shenzhen City, Guangdong Province Patentee after: Shenzhen Dawei Innovation Technology Co.,Ltd. Address before: 518000, building 12, No. two Shenzhen Software Park, Nanshan District science and technology, Shenzhen, Guangdong 301, China Patentee before: SHENZHEN TERCA TECHNOLOGY Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131106 |