CN202073679U - Diesel motor starting protective device - Google Patents
Diesel motor starting protective device Download PDFInfo
- Publication number
- CN202073679U CN202073679U CN2011200404647U CN201120040464U CN202073679U CN 202073679 U CN202073679 U CN 202073679U CN 2011200404647 U CN2011200404647 U CN 2011200404647U CN 201120040464 U CN201120040464 U CN 201120040464U CN 202073679 U CN202073679 U CN 202073679U
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- starting
- relay
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- insurance
- guide
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Abstract
The utility model discloses a diesel motor starting protective device which belongs to the technical field of diesel motors, and comprises a starting motor, a key switch, a starting relay, a starting protective relay, a guide handle switch, a guide magnetic valve, a guide magnetic valve insurance, a key switch insurance and a guide handle switch insurance, wherein a normally-opened contact of the starting relay is connected with an S terminal of the starting motor; a normally-closed contact of the starting relay is connected in series between a coil of the starting relay and an R2 terminal of the key switch; a normally-opened contact of the guide handle switch is connected between an ACC terminal and a point a of the key switch; the point a is further connected with the guide magnetic valve and the coil of the starting protective relay respectively; and a G terminal of the starting motor, a negative terminal of the coil of the starting relay and a negative terminal of the guide magnetic valve are grounded with an A2 terminal of the starting protective relay. The diesel motor starting protective device has the benefits that the shortening of the service life of a diesel motor, a hydraulic pump, a storage battery and the starting motor can be avoided, has a simple structure, is reliable and practical, and has low cost.
Description
Technical field
The utility model relates to the diesel engine technologies field, specifically is that a kind of diesel engine starts protective gear.
Background technique
In the hydraulic system of many engineering machinery, pass through the diesel engine drives oil hydraulic pump mostly with Conversion of energy and transmission, guarantee that whole machinery runs well.In working order down because driver's misoperation turns the key operation startup once more, can cause starting motor to damage as diesel engine.And for example the diesel engine band carries startup, cause the engine start difficulty, produce the wearing and tearing of dry friction booster engine between bent axle and bearing, piston and the casing wall, influence motor working life, influence in working life to oil hydraulic pump is also very big, simultaneously accumulator electric-quantity is exhausted.
Summary of the invention
The utility model provides a kind of diesel engine to start protective gear, avoids shortening of diesel engine, oil hydraulic pump, storage battery and starting motor working life.
The utility model is realized with following technological scheme: a kind of diesel engine starts protective gear, comprise starting motor, key operation, starting relay, startup protective relay, guide's bat-handle switch, pilot solenoid valve, pilot solenoid valve insurance, insurance and the insurance of guide's bat-handle switch; The normally opened contact of starting relay is connected between the S terminal of pilot solenoid valve insurance and starting motor, insurance links to each other with the B terminal of key operation, the normally-closed contact that starts protective relay is connected between the R2 terminal of the coil of starting relay and key operation, guide's bat-handle switch insurance be connected between the ACC terminal and a point of key operation after guide's bat-handle switch normally opened contact is connected, a point links to each other with pilot solenoid valve, startup protective relay coil respectively again; Pilot solenoid valve insurance, insurance, the other end of guide's bat-handle switch insurance and the B terminal of starting motor connect the 24V power supply respectively; The A2-terminal of the G terminal of starting motor, starting relay coil negative terminal, pilot solenoid valve negative terminal and startup protective relay is ground connection all.
The beneficial effects of the utility model are: have and prevent that the diesel engine band carries and start and prevent the diesel engine auto-lock function that starts of row down in working order, avoided shortening of diesel engine, oil hydraulic pump, storage battery, starting motor working life.Have the characteristics simple, reliable, practical, that cost is low.
Description of drawings
Fig. 1 is an electrical schematic diagram of the present utility model.
Among the figure: 1, pilot solenoid valve insurance, 2, the key operation insurance, 3, the insurance of guide's bat-handle switch, 4, guide's bat-handle switch, 5, pilot solenoid valve, 6, start protective relay, 7, starting motor, 8, starting relay, 9, key operation.
Embodiment
Below in conjunction with accompanying drawing and enforcement the utility model is further specified.
As shown in Figure 1, a kind of diesel engine startup protective gear is made up of starting motor 7, key operation 9, starting relay 8, startup protective relay 6, guide's bat-handle switch 4, pilot solenoid valve 5, pilot solenoid valve insurance 1, insurance 2 and guide's bat-handle switch insurance 3.Guide's bat-handle switch 4 and key operation 9 are installed in the operator cabin.The normally opened contact of starting relay 8 is connected between the S terminal of pilot solenoid valve insurance 1 and starting motor 7, insurance 2 links to each other with the B terminal of key operation 9, the normally-closed contact that starts protective relay 6 is connected between the R2 terminal of the coil of starting relay 8 and key operation 9, guide's bat-handle switch insurance 3 be connected between the ACC terminal and a point of key operation 9 after guide's bat-handle switch 4 normally opened contacts are connected, a point links to each other with pilot solenoid valve 5, startup protective relay 6 coils respectively again; Pilot solenoid valve insurance 1, insurance 2, the other end of guide's bat-handle switch insurance 3 and the B terminal of starting motor 7 meet 24V respectively; The A2-terminal difference of the G terminal of starting motor 7, starting relay 8 coil negative terminals, pilot solenoid valve 5 negative terminals, startup protective relay 6 is ground connection all.Described startup protective relay 6 adopts low power relay.
Work gear and the breaking capacity of key operation S1 see Table 1.
Table 1
As shown in table 1, key operation 9 is when I shelves and II gear, and the ACC end all has; The I gear is threaded to II (startup) gear from resetting, and has prevented to start starting motor always; The I shelves, just can be transformed on II (startup) gear after next operation must be got back to 0 gear earlier to the continuous running 1 time only of II shelves, have prevented the auto-lock function that the motor under the working state starts once more.Key operation 9 has the auto-lock function that prevents that the following in working order row again of motor from starting, and when restarting, after key operation 9 must be got back to 0 gear earlier, just can be transformed on II (startup) gear next time.The I gear of key operation 9 is threaded to II (startup) gear from resetting, and has the function that has prevented from always to start starting motor.
As shown in Figure 1, operation makes guide's bat-handle switch 4 closures, and pilot solenoid valve 5 and startup protective relay 6 coils all get simultaneously.Pilot solenoid valve 5 gets electric, and the guide controls total oil circuit connection in the hydraulic system; Startup protective relay 6 coils get electric, and its normally-closed contact just disconnects, and starting relay 8 coils must not be electric, and the normally opened contact of starting relay 8 is failure to actuate, and the S terminal of starting motor 7 does not have electricity, and starting motor 7 can not start; Be guide's bat-handle switch 4 closures, the guide controls total oil circuit connection in the hydraulic system, and starting motor 7 can not start.On the contrary, inoperation guide bat-handle switch 4, pilot solenoid valve 5 and startup protective relay 6 coils all must not.The guide controls total oil circuit disconnection in the hydraulic system; Key operation 9 is threaded to the II gear, and starting relay 6 gets electric, its normally opened contact closure, and the S terminal of starting motor 7 has electricity, can starting motor 7.
Claims (3)
1. a diesel engine starts protective gear, it is characterized in that: comprise starting motor (7), key operation (9), starting relay, startup protective relay (6), guide's bat-handle switch (4), pilot solenoid valve (5), pilot solenoid valve insurance (1), key operation insurance (2) and guide's bat-handle switch insurance (3); The normally opened contact of starting relay (8) is connected between the S terminal of pilot solenoid valve insurance (1) and starting motor (7), key operation insurance (2) links to each other with the B terminal of key operation (9), the normally-closed contact that starts protective relay (6) is connected between the R2 terminal of the coil of starting relay (8) and key operation (9), guide's bat-handle switch insurance (3) be connected between the ACC terminal and a point of key operation (9) after guide's bat-handle switch (4) normally opened contact is connected, a point links to each other with pilot solenoid valve (5), startup protective relay (6) coil respectively again; Pilot solenoid valve insurance (1), insurance (2), the other end of guide's bat-handle switch insurance (3) and the B terminal of starting motor (7) connect the 24V power supply respectively; The A2-terminal ground connection of the G terminal of starting motor (7), starting relay (8) coil negative terminal, pilot solenoid valve (5) negative terminal and startup protective relay (6).
2. a kind of diesel engine according to claim 1 starts protective gear, and it is characterized in that: described guide's bat-handle switch (4) and key operation (9) are installed in the operator cabin.
3. a kind of diesel engine according to claim 1 starts protective gear, it is characterized in that: described startup protective relay (6) adopts low power relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200404647U CN202073679U (en) | 2011-02-14 | 2011-02-14 | Diesel motor starting protective device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200404647U CN202073679U (en) | 2011-02-14 | 2011-02-14 | Diesel motor starting protective device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202073679U true CN202073679U (en) | 2011-12-14 |
Family
ID=45111783
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200404647U Expired - Fee Related CN202073679U (en) | 2011-02-14 | 2011-02-14 | Diesel motor starting protective device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202073679U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102748153A (en) * | 2012-07-23 | 2012-10-24 | 山河智能装备股份有限公司 | System and method for starting and stopping protection of diesel engine of excavator |
| CN103321766A (en) * | 2013-07-15 | 2013-09-25 | 潍柴动力股份有限公司 | Method, controller and system for monitoring operating state of motor vehicle |
| CN104265537A (en) * | 2014-08-15 | 2015-01-07 | 南车戚墅堰机车有限公司 | Starting control circuit of diesel engine of internal combustion locomotive |
| CN113882458A (en) * | 2021-09-28 | 2022-01-04 | 中联重科土方机械有限公司 | Engineering machinery safety control device, method and system and engineering machinery |
-
2011
- 2011-02-14 CN CN2011200404647U patent/CN202073679U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102748153A (en) * | 2012-07-23 | 2012-10-24 | 山河智能装备股份有限公司 | System and method for starting and stopping protection of diesel engine of excavator |
| CN102748153B (en) * | 2012-07-23 | 2015-04-22 | 山河智能装备股份有限公司 | System and method for starting and stopping protection of diesel engine of excavator |
| CN103321766A (en) * | 2013-07-15 | 2013-09-25 | 潍柴动力股份有限公司 | Method, controller and system for monitoring operating state of motor vehicle |
| CN104265537A (en) * | 2014-08-15 | 2015-01-07 | 南车戚墅堰机车有限公司 | Starting control circuit of diesel engine of internal combustion locomotive |
| CN104265537B (en) * | 2014-08-15 | 2016-03-23 | 南车戚墅堰机车有限公司 | Diesel engine of diesel locomotive start control circuit |
| CN113882458A (en) * | 2021-09-28 | 2022-01-04 | 中联重科土方机械有限公司 | Engineering machinery safety control device, method and system and engineering machinery |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Xuzhou Bohui Torque-Machine Manufacturing Co., Ltd. Assignor: Xuzhou Bohui Torque-Machine Manufacture Co., Ltd. Contract record no.: 2012320000765 Denomination of utility model: Diesel motor starting protective device Granted publication date: 20111214 License type: Exclusive License Record date: 20120612 |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111214 Termination date: 20130214 |