CN205001499U - Limping gear shift variable speed control system - Google Patents
Limping gear shift variable speed control system Download PDFInfo
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- CN205001499U CN205001499U CN201520722974.0U CN201520722974U CN205001499U CN 205001499 U CN205001499 U CN 205001499U CN 201520722974 U CN201520722974 U CN 201520722974U CN 205001499 U CN205001499 U CN 205001499U
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Abstract
The utility model relates to a variable speed control, for solving current limping gear shift control still by the low reliability shortcoming of software control, the utility model discloses power, limping mode activation switch concatenate with limping mode gear shift switch in proper order mutually among the limping gear shift variable speed control system, movable contact among the output circuit of first relay, second relay corresponds and is connected with the power end of first solenoid valve, second solenoid valve, and what correspond on normal close stationary contact and the variable -speed controller gos forward one grade and retreat one grade of output and be connected, and the ging forward a grade in the corresponding and limping mode gear shift switch of stationary contact of normally opening of first relay and second relay is contacted and retreat one grade of contact connection, the input circuit of first solenoid valve and second solenoid valve and limping mode activation switch concatenates mutually. The utility model discloses limping gear shift variable speed control system's simple structure, with low costs, advantage that the reliability is high.
Description
Technical field
The utility model relates to a kind of change control system, more particularly, relates to a kind of shifted control system of walking lamely.
Background technique
Existing engineering machinery as the change control system of loader primarily of the solenoid valve group on variable-speed controller, gearbox, gear position operation handle, whole vehicle state data sampling sensor as compositions such as engine rotation speed sensor, vehicle speed sensor, turbo speed sensor, each gear clutch pressure transducer, instrument, variable-speed controller gathers the gear positions information of data that various sensor responds to and gear position operation handle, and providing control signal after comprehensive computing, that machine is in is best with working state that is safety.For general variable-speed controller, when some sensor failure makes variable-speed controller detect that whole vehicle state is abnormal, just likely can start the fault treatment function of variable-speed controller, complete machine cannot be travelled and work; But for having the variable-speed controller of limping function, when non-key components and parts break down, variable-speed controller starts limping function, loader is made to continue to travel or work, such as make machine can at a lower rate voluntarily Kai Hui repair shop and avoid use trailer, this limping function is still controlled by variable-speed controller, is realized in the software program of variable-speed controller by software program.Often there is following shortcoming in this change control system by variable-speed controller control startup limping function, first control program is complicated, if when another one shortcoming is variable-speed controller damage, then loader can not start limping function, and loader also just cannot travel and work.
Model utility content
The technical problems to be solved in the utility model is still provided a kind of simple and reliable for structure shifted control system of limping being performed limping function by hardware by the low reliability shortcoming of software control for existing limping gearshift control.
The utility model is the technological scheme realizing its object is such: a kind of shifted control system of walking lamely of structure, comprise power supply, variable-speed controller, first solenoid valve, with slow astern shelves corresponding second solenoid valve corresponding with advance one grade, also comprise limping mode activation switch, limping pattern Gear-shift switch, conversion hysteria first relay and conversion hysteria second relay in addition, described power supply, limping mode activation switch are connected in series successively mutually with limping pattern Gear-shift switch, movable contact in the output loop of described first relay is connected with the power end of the first solenoid valve, movable contact in the output loop of described second relay is connected with the power end of the second solenoid valve, the advance one grade that described first relay is corresponding with on described variable-speed controller with the normally closed stationary contact of the second relay and slow astern shelves output terminal are connected, described first relay is connected with the advance one grade of contact in described limping pattern Gear-shift switch and slow astern shelves contact with the stationary contact correspondence of often opening of the second relay, described first solenoid valve is connected in series with described limping mode activation switch mutually with the input circuit of the second solenoid valve.In the present embodiment, if machine is normal, limping mode activation switch disconnects, the input circuit of the first relay and the second relay is in open circuit, the output loop of the first relay and the second relay is in normally off, advance one grade of output terminal of variable-speed controller and the power end conducting of the first solenoid valve, the slow astern shelves output terminal of variable-speed controller and the power end conducting of the second solenoid valve, namely have the advance one grade in variable-speed controller control change control system and slow astern shelves.When variable-speed controller go wrong correctly can not send control signal time, start limping function, namely limping mode activation switch closes, the input of the first relay and the second relay is got back to electric, movable contact on the output loop of the first relay and the second relay with often to open stationary contact and close, disconnect with normally closed stationary contact, namely the first relay and the second relay disconnect the connection with variable-speed controller, if the movable contact of now limping pattern Gear-shift switch and advance one grade of stationary contact contacts closed, then machine is with low speed one grade advance, if the movable contact of limping pattern Gear-shift switch contacts closed with slow astern shelves stationary contact, then machine is with low speed one grade retrogressing, if the movable contact of limping pattern Gear-shift switch contacts closed with neutral gear stationary contact, then machine is in neutral state.
In the shifted control system of above-mentioned limping, also comprise several high tap position Controlling solenoid valve that gear some other with is corresponding, the power end of each high tap position Controlling solenoid valve is connected with the movable contact of a high tap position control relay, on variable-speed controller described in the normally closed stationary contact of described high tap position control relay, the high tap position output terminal of corresponding shelves connects, and the power end of described high tap position control relay is connected in series mutually with described limping mode activation switch.Described high tap position Controlling solenoid valve comprise three solenoid valve corresponding with advance second gear, with retreat the 4th solenoid valve corresponding to second gear, the 4th relay that described high tap position control relay comprises the 3rd relay that movable contact is connected with described 3rd solenoid valve, movable contact is connected with described 4th solenoid valve.After machine enters limping pattern, by the 3rd relay and the 4th relay, the advance second gear of machine, retrogressing second gear are cut off to the connection of the 3rd solenoid valve, the 4th between solenoid valve and variable-speed controller of correspondence, avoid variable-speed controller to send false command and carry out speed change.
Walk lamely in shifted control system at the utility model, high tap position refer to speed change gear except advance one grade, slow astern shelves, neutral gear as advance second gear, retreat second gear, advance third gear etc., the quantity of high tap position is not limit, and can arrange according to the actual demand of machine.
The beneficial effect that the utility model compared with prior art has: the utility model is walked lamely, and the structure of shifted control system is simple, cost is low, reliability is high.
Accompanying drawing explanation
Fig. 1 is that the utility model is walked lamely the circuit theory diagrams of shifted control system.
Component title and sequence number in figure:
The beneficial effect that power supply 1, limping mode activation switch 2, limping pattern Gear-shift switch 3, first solenoid valve 4, second solenoid valve 5, the 3rd solenoid valve 6, the 4th solenoid valve 7, the 5th solenoid valve 8, first relay 9, second relay 10, the 3rd relay 11 the utility model compared with prior art have: the utility model is walked lamely, and the structure of shifted control system is simple, cost is low, reliability is high.
Embodiment
Power supply 1, limping mode activation switch 2, limping pattern Gear-shift switch 3, first solenoid valve 4, second solenoid valve 5, 3rd solenoid valve 6, 4th solenoid valve 7, 5th solenoid valve 8, first relay 9, second relay 10, 3rd relay 11, second relay 10, 3rd relay 11, 4th relay 12, the input circuit of five relays such as the 5th relay 13 grade is in open circuit, the output loop of each relay is in normally off, first solenoid valve 4, second solenoid valve 5, 3rd solenoid valve 6, 4th solenoid valve 7, five solenoid valves such as 5th solenoid valve 8 grade are by relay correspondence advance one grade of output terminal with variable-speed controller, slow astern shelves output terminal, advance second gear output terminal, retreat second gear output terminal, advance one grade of output terminal, the speed Control of machine is controlled by variable-speed controller.
When variable-speed controller go wrong correctly can not send control signal time, start limping function, namely limping mode activation switch closes, first relay 9, second relay 10, 3rd relay 11, 4th relay 12, the input circuit of five relays such as the 5th relay 13 grade is in path, movable contact and the normally closed stationary contact of each relay disconnect, first solenoid valve 4, second solenoid valve 5, 3rd solenoid valve 6, 4th solenoid valve 7, the power end of the 5th solenoid valve 8 and the control output end of variable-speed controller disconnect, depart from the control of variable-speed controller, now the first relay 9, the movable contact of the second relay 10 with often open stationary contact and engage, namely the power end controlling the first solenoid valve of advance one grade passes through advance one grade of stationary contact conducting of the first relay and limping pattern Gear-shift switch, the power end controlling the second solenoid valve of slow astern shelves passes through the slow astern shelves stationary contact conducting of the second relay and limping pattern Gear-shift switch.When now needing to advance, the movable contact of limping pattern Gear-shift switch and advance one grade of stationary contact is engaged conducting, machine then advances under the lower-speed state of advance one grade, equally the movable contact of limping pattern Gear-shift switch is engaged conducting with slow astern shelves stationary contact, machine then retreats under the lower-speed state of slow astern shelves, if the movable contact of limping pattern Gear-shift switch engages with neutral gear stationary contact, then machine is in neutral state.
In the present embodiment, limping pattern is by mode activation switch 2 of walking lamely, limping pattern Gear-shift switch 3 and Control, and structure is simple, and cost is low, and reliability is high.
Claims (3)
1. a shifted control system of walking lamely, comprise power supply, variable-speed controller, first solenoid valve, with slow astern shelves corresponding second solenoid valve corresponding with advance one grade, characterized by further comprising limping mode activation switch, limping pattern Gear-shift switch, conversion hysteria first relay and conversion hysteria second relay, described power supply, limping mode activation switch are connected in series successively mutually with limping pattern Gear-shift switch, movable contact in the output loop of described first relay is connected with the power end of the first solenoid valve, movable contact in the output loop of described second relay is connected with the power end of the second solenoid valve, the advance one grade that described first relay is corresponding with on described variable-speed controller with the normally closed stationary contact of the second relay and slow astern shelves output terminal are connected, described first relay is connected with the advance one grade of contact in described limping pattern Gear-shift switch and slow astern shelves contact with the stationary contact correspondence of often opening of the second relay, described first solenoid valve is connected in series with described limping mode activation switch mutually with the input circuit of the second solenoid valve.
2. the shifted control system of limping according to claim 1, characterized by further comprising several high tap position Controlling solenoid valve that gear some other with is corresponding, the power end of each high tap position Controlling solenoid valve is connected with the movable contact of a high tap position control relay, on variable-speed controller described in the normally closed stationary contact of described high tap position control relay, the high tap position output terminal of corresponding shelves connects, and the power end of described high tap position control relay is connected in series mutually with described limping mode activation switch.
3. the shifted control system of limping according to claim 2, it is characterized in that described high tap position Controlling solenoid valve comprise three solenoid valve corresponding with advance second gear, with retreat the 4th solenoid valve corresponding to second gear, the 4th relay that described high tap position control relay comprises the 3rd relay that movable contact is connected with described 3rd solenoid valve, movable contact is connected with described 4th solenoid valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520722974.0U CN205001499U (en) | 2015-09-18 | 2015-09-18 | Limping gear shift variable speed control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520722974.0U CN205001499U (en) | 2015-09-18 | 2015-09-18 | Limping gear shift variable speed control system |
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| Publication Number | Publication Date |
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| CN205001499U true CN205001499U (en) | 2016-01-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520722974.0U Active CN205001499U (en) | 2015-09-18 | 2015-09-18 | Limping gear shift variable speed control system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109869477A (en) * | 2019-03-28 | 2019-06-11 | 徐州徐工施维英机械有限公司 | A kind of gearbox gear-shift protection system and engineering machinery |
| CN110319183A (en) * | 2018-03-29 | 2019-10-11 | 本田技研工业株式会社 | The gear detection device of sequence speed changer |
| CN113062978A (en) * | 2021-03-17 | 2021-07-02 | 陕西法士特齿轮有限责任公司 | Control system and control method for limping function of AT (automatic transmission) |
-
2015
- 2015-09-18 CN CN201520722974.0U patent/CN205001499U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110319183A (en) * | 2018-03-29 | 2019-10-11 | 本田技研工业株式会社 | The gear detection device of sequence speed changer |
| US11105413B2 (en) | 2018-03-29 | 2021-08-31 | Honda Motor Co., Ltd. | Gear position measuring device for sequential transmission |
| CN109869477A (en) * | 2019-03-28 | 2019-06-11 | 徐州徐工施维英机械有限公司 | A kind of gearbox gear-shift protection system and engineering machinery |
| CN109869477B (en) * | 2019-03-28 | 2024-01-26 | 徐州徐工施维英机械有限公司 | Gear box gear shift protection system and engineering machinery |
| CN113062978A (en) * | 2021-03-17 | 2021-07-02 | 陕西法士特齿轮有限责任公司 | Control system and control method for limping function of AT (automatic transmission) |
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