CN203937663U - Multi-functional or door type brake system for loader - Google Patents
Multi-functional or door type brake system for loader Download PDFInfo
- Publication number
- CN203937663U CN203937663U CN201420252648.3U CN201420252648U CN203937663U CN 203937663 U CN203937663 U CN 203937663U CN 201420252648 U CN201420252648 U CN 201420252648U CN 203937663 U CN203937663 U CN 203937663U
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- mouth
- brake
- prefill valve
- foot brake
- valves
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Abstract
The utility model discloses multi-functional for a kind of loader or door type brake system, its brake pump oil suction is connected with hydraulic reservoir, and oil outlet is connected with the P mouth of prefill valve, by pass valve in parallel between brake pump and prefill valve, the O mouth connection hydraulic reservoir of prefill valve; Energy storage I and energy storage II are connected respectively A1 and the A2 mouth of prefill valve, the A1 of prefill valve is connected with P2 with the P1 of main foot brake valves respectively again with A2 mouth simultaneously, the A1 of main foot brake valves is connected respectively propons rim brake and rear axle wheel reductor drg with A2 mouth, also comprise guide's foot brake valves, its P mouth connects the A2 mouth of prefill valve, T mouth connects hydraulic reservoir, and A mouth connects the LS mouth of main foot brake valves; Pin displacement pickup is connected to the pedal place of guide's foot brake valves, this system has solved the contradiction of little throttle in the time that loader work system needs large throttle operation and complete machine to brake, and the danger of having avoided loader to bring to complete machine in descending section loss Jake brake function.
Description
Technical field
The utility model relates to a kind of brake system, and specifically multi-functional or door type brake system for a kind of loader, belongs to hydraulic braking technical field.
Background technology
At present, common wheel type loader brake system adopts Full-hydraulic braking apparatus more, because this brake system does not generally have power cut function, in the time stepping on brake pedal braking, driving engine is still toward bridge end transferring power, especially for high-power outputs of this needs such as the receipts buckets of loader and the operating mode that complete machine need to be braked must cause the serious heating of bridge end, reduce the life-span of bridge, the contradiction of little throttle while existing loader work system to need large throttle operation and complete machine to brake.
The defect existing for current full power hydraulic brake system, people attempt to solve problem by following two kinds of modes:
1) chaufeur is being broken and is being transmitted to the power of bridge end by extension neutral, but such operation is for the loader of the frequent braking of needs, obviously easily causes the fatigue of chaufeur, and work efficiency can not get guarantee;
2) adopt the foot brake valves with angular-motion transducer, in the time that chaufeur is stepped on foot brake valves pedal certain angle, angular-motion transducer detects this signal, and pass to change speed gear box, the clutch degree that makes the power-transfer clutch in change speed gear box step on angle control clutch according to foot brake pedal is cut off power, so just solve and needed power when work system, drive system does not need the contradiction of power, but the defect of this foot brake valves is, in the time that need to braking and step on foot brake pedal, loader approach descending section between transit period also cuts off power, this has just lost the Transport Machinery such as the automobile Jake brake function conventional in descending section, and this state is danger close.
Summary of the invention
The utility model provides multi-functional or door type brake system for a kind of loader, can solve the contradiction of little throttle in the time that loader work system needs large throttle operation and complete machine to brake; The danger of avoiding loader to lose Jake brake function in descending section and to bring to complete machine.
The utility model adopts multi-functional or door type brake system for a kind of loader, comprise hydraulic reservoir, brake pump, prefill valve, energy storage I, energy storage II, pin displacement pickup, main foot brake valves, propons rim brake and rear axle wheel reductor drg, brake pump oil suction is connected with hydraulic reservoir, oil outlet is connected with the P mouth of prefill valve, by pass valve in parallel between brake pump and prefill valve, the O mouth of prefill valve connects hydraulic reservoir; Energy storage I and energy storage II are connected respectively A1 and the A2 mouth of prefill valve, the A1 of prefill valve is connected with P2 with the P1 of main foot brake valves respectively again with A2 mouth simultaneously, the A1 of main foot brake valves is connected respectively propons rim brake and rear axle wheel reductor drg with A2 mouth, also comprise guide's foot brake valves, its P mouth connects the A2 mouth of prefill valve, T mouth connects hydraulic reservoir, and A mouth connects the LS mouth of main foot brake valves; Pin displacement pickup is connected to the pedal place of guide's foot brake valves.
The pedal of guide's foot brake valves is installed on driver's left foot position.
The pedal of main foot brake valves is installed on driver's right crus of diaphragm position.
Compared with existing installation, the utility model by improving the structure of main foot brake valves on traditional loader full power hydraulic brake system: on the basis that uses stretcher control, add pilot control oil circuit, and control the pedal place irrotational displacement sensor of this foot brake valves, step on the unpowered cutting function of this brake pedal, it is together with other integrated guide's foot brake valves of increase and the new structure of pin displacement pickup, not only solve the contradiction of little throttle in the time that loader work system needs large throttle operation and complete machine to brake, and avoid the single pin displacement pickup that installs additional to realize the danger that the loader of power cut function brings to complete machine in descending section loss Jake brake function.
Brief description of the drawings
Fig. 1 is this utility model structure principle chart.
In figure: 1, hydraulic reservoir, 2, brake pump, 3, by pass valve, 4, prefill valve, 5, energy storage I, 6, energy storage II, 7, guide's foot brake valves, 8, pin displacement pickup, 9, main foot brake valves, 10, propons rim brake, 11, rear axle wheel reductor drg.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is further illustrated.
As shown in Figure 1, multi-functional or door type brake system for this loader, comprise hydraulic reservoir 1, brake pump 2, prefill valve 4, energy storage I5, energy storage II6, pin displacement pickup 8, main foot brake valves 9, propons rim brake 10 and rear axle wheel reductor drg 11, brake pump 2 oil suctions are connected with hydraulic reservoir 1, oil outlet is connected with the P mouth of prefill valve 4, by pass valve 3 in parallel between brake pump 2 and prefill valve 4, the O mouth of prefill valve 4 connects hydraulic reservoir 1; Energy storage I5 and energy storage II6 are connected respectively A1 and the A2 mouth of prefill valve 4, the A1 of prefill valve 4 is connected with P2 with the P1 of main foot brake valves 9 respectively again with A2 mouth simultaneously, the A1 of main foot brake valves 9 is connected respectively propons rim brake 10 and rear axle wheel reductor drg 11 with A2 mouth, also comprise guide's foot brake valves 7, its P mouth connects the A2 mouth of prefill valve 4, T mouth connects hydraulic reservoir 1, and A mouth connects the LS mouth of main foot brake valves 9; Pin displacement pickup 8 is connected to the pedal place of guide's foot brake valves 7.
Preferably, the pedal of guide's foot brake valves 7 is installed on driver's left foot position, and compared with being arranged on right crus of diaphragm position, its preceence is in the time that loader need to do the action such as the large throttle of receiving bucket and need complete machine braking, can change to neutral, directly step on the pedal of guide's foot brake valves 7.
Preferably, the pedal of main foot brake valves 9 is installed on driver's right crus of diaphragm position, and this brake pedal is installed near Das Gaspedal place, i.e. driver's right crus of diaphragm place, while transporting operation for the foot brake valves of this unpowered cutting function for loader, such structural arrangement meets the driving habit of automobile.
When operation, because this brake system has added guide's foot brake valves 7, when stepping on after its brake pedal, the upper oil circuit that the pressure oil of drawing from energy storage II6 is changed to by guide's foot brake valves 7 provides pilot control oil to main foot brake valves 9, after main foot brake valves 9 transpositions, realize equally complete machine braking function, difference is the other angular-motion transducer 8 that is provided with of this guide's foot brake valves 7, this sensor can convert electric signal transmission to change speed gear box the angle signal detecting, to control the clutch degree of power-transfer clutch wherein, realize the power cut function of ratio.
Claims (3)
1. a multi-functional or door type brake system for loader, comprise hydraulic reservoir (1), brake pump (2), prefill valve (4), energy storage I(5), energy storage II(6), pin displacement pickup (8), main foot brake valves (9), propons rim brake (10) and rear axle wheel reductor drg (11), brake pump (2) oil suction is connected with hydraulic reservoir (1), oil outlet is connected with the P mouth of prefill valve (4), by pass valve in parallel (3) between brake pump (2) and prefill valve (4), the O mouth of prefill valve (4) connects hydraulic reservoir (1); Energy storage I(5) with energy storage II(6) be connected respectively A1 and the A2 mouth of prefill valve (4), the A1 of prefill valve (4) is connected with P2 with the P1 of main foot brake valves (9) respectively again with A2 mouth simultaneously, the A1 of main foot brake valves (9) is connected respectively propons rim brake (10) and rear axle wheel reductor drg (11) with A2 mouth, it is characterized in that, also comprise guide's foot brake valves (7), its P mouth connects the A2 mouth of prefill valve (4), T mouth connects hydraulic reservoir (1), and A mouth connects the LS mouth of main foot brake valves (9); Pin displacement pickup (8) is connected to the pedal place of guide's foot brake valves (7).
2. multi-functional or door type brake system for loader according to claim 1, is characterized in that, the pedal of described guide's foot brake valves (7) is installed on driver's left foot position.
3. multi-functional or door type brake system for loader according to claim 1, is characterized in that, the pedal of described main foot brake valves (9) is installed on driver's right crus of diaphragm position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420252648.3U CN203937663U (en) | 2014-05-19 | 2014-05-19 | Multi-functional or door type brake system for loader |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420252648.3U CN203937663U (en) | 2014-05-19 | 2014-05-19 | Multi-functional or door type brake system for loader |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203937663U true CN203937663U (en) | 2014-11-12 |
Family
ID=51857005
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420252648.3U Expired - Fee Related CN203937663U (en) | 2014-05-19 | 2014-05-19 | Multi-functional or door type brake system for loader |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203937663U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106240540A (en) * | 2016-08-29 | 2016-12-21 | 徐工集团工程机械股份有限公司科技分公司 | A kind of automatic breaking system |
| CN106314405A (en) * | 2016-09-17 | 2017-01-11 | 西安科技大学 | Large-tonnage hydraulic mining vehicle braking system and method |
-
2014
- 2014-05-19 CN CN201420252648.3U patent/CN203937663U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106240540A (en) * | 2016-08-29 | 2016-12-21 | 徐工集团工程机械股份有限公司科技分公司 | A kind of automatic breaking system |
| CN106314405A (en) * | 2016-09-17 | 2017-01-11 | 西安科技大学 | Large-tonnage hydraulic mining vehicle braking system and method |
| CN106314405B (en) * | 2016-09-17 | 2023-03-14 | 西安科技大学 | Hydraulic braking system and method for large-tonnage mining vehicle |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141112 |