CN202401510U - Novel quick-change control system for accessory of hydraulic excavator - Google Patents
Novel quick-change control system for accessory of hydraulic excavator Download PDFInfo
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- CN202401510U CN202401510U CN 201120466817 CN201120466817U CN202401510U CN 202401510 U CN202401510 U CN 202401510U CN 201120466817 CN201120466817 CN 201120466817 CN 201120466817 U CN201120466817 U CN 201120466817U CN 202401510 U CN202401510 U CN 202401510U
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Abstract
The utility model discloses a novel quick-change control system for an accessory of a hydraulic excavator, which belongs to the technical field of a hydraulic excavator control system. The quick-change control system comprises a hydraulic pilot pump, a pilot oil source block, an electromagnetic directional valve, a standard quick-change device, an oil filter and a hydraulic oil tank. The quick-change control system also comprises a power supply switch blade S2, a storage battery, a relay K1, a key switch, a fuse protector F1, a fuse protector F2, a fuse protector F3, a monitor, a quick-change unlocking switch S4, a middle relay K2 and a three-position rocker switch S3; the power supply switch blade S2 is serially connected with the storage battery and the power supply relay K1; the power supply relay K1 is serially connected with the key switch and the fuse protector F1; the monitor is respectively connected with the fuse protector F2, serially connected with the middle relay K2, the three-position rocker switch S3 and the electromagnetic directional valve, and grounded through the quick-change unlocking switch S4; the middle relay K2 is connected with the fuse protector F3, and the relay K1, the fuse protector F1, the fuse protector F2 and the fuse protector F3 are connected in parallel. The quick-change control system has the beneficial effects that the complexity in distributing pipelines is reduced and the operation safety is improved by improving electrohydraulic control of the quick-change control system.
Description
Technical field
The utility model relates to a kind of annex quick change and controls system, relates in particular to a kind of novel hydraulic excavator annex quick change and controls system, realizes the electrichydraulic control to the standard fast replacing device, belongs to hydraulic crawler excavator control systems technology field.
Background technology
When the user changes the digger operating device annex, generally need so not only increase user's labour intensity through artificial dismounting, especially, more brought a lot of inconvenience to the user in personnel and the limited relatively zone of instrument.Therefore, through increasing the difficulty that excavator annex fast replacing device faces when effectively device fitting is changed in solution work.
The control mode of hydraulic crawler excavator annex fast replacing device mainly contains two kinds: a kind of is pure hydraulic control system mode; As shown in Figure 3; The oil inlet end of hydraulic pilot pump 1 is considered 16 through oil and is connected with hydraulic oil container 17; The oil outlet end of hydraulic pilot pump 1 is connected with reversal valve 18 through guide's oil sources piece 2, and reversal valve 18 is connected with standard fast replacing device 4, relies on the switching-over of guide's pedal 19 control reversal valves 18.This kind mode mainly is to realize the control to the standard quick-changing mechanism through installing Hydraulic Elements such as hydraulic pilot pedal, reversal valve additional; The user can change the direction of motion of change-over valve core through guide's oil circuit of hydraulic control pedal; Thereby the direction of motion that changes the operating cylinder of fast replacing device realizes changing the outfit to the equipment annex; Control is simple, reliability is higher, but causes the misoperation in the loop that changes jobs soon easily, causes system to have potential safety hazard.Another kind is the electrichydraulic control mode, compares with pure hydraulic control system, reversal valve is adjusted into automatically controlled from hydraulic control, realizes the switching-over of reversal valve through the break-make electricity of control reversal valve coil.
At present, domestic excavator seldom has excavator annex quick change function, and abroad some producer only adopts simple switch control, though cost is lower, and the potential safety hazard that can't avoid maloperation to bring.For simple more, relatively low, the operation safe of cost of control system that makes hydraulic crawler excavator annex fast replacing device, we further investigate.
Summary of the invention
To above-mentioned existing technical problem; The utility model provides a kind of novel hydraulic excavator annex quick change to control system, and its automatically controlled part adopts the control of two-stage switch, and introduces two rocker switchs as the quick change unlock switch; Watch-dog can sense switch released state and on homepage, carry out the sound and light alarm prompting; Reduce because maloperation causes the potential safety hazard of quick-changing mechanism action, improved the processing safety of system, ergonomic.
The utility model is for realizing above-mentioned purpose; Realize through following technical scheme: a kind of novel hydraulic excavator annex quick change is controlled system; Comprise hydraulic pilot pump, guide's oil sources piece, solenoid operated directional valve, standard fast replacing device, oil worry and hydraulic oil container; The oil inlet end of hydraulic pilot pump is considered the connection hydraulic oil container through oil, and the oil outlet end of hydraulic pilot pump connects solenoid operated directional valve through guide's oil sources piece, and solenoid operated directional valve connects the standard fast replacing device; Also comprise power supply plug-in strip S2, battery, relay K 1, key switch, fuse F 1, fuse F 2, fuse F 3, watch-dog, quick change unlock switch S4, auxiliary reclay K2 and three rocker switch S3; Power supply plug-in strip S2 one end ground connection, the other end connect successively battery and power supply relay K1; Power supply relay K1 one end ground connection, the other end connect successively " 2 end " of key switch and fuse F 1; " 1 end " of watch-dog connects " 2 end " of fuse F 2, " 2 end " ground connection of watch-dog, and its " 3 end " connect successively auxiliary reclay K2 and three rocker switch S3, its " 4 end " is through quick change unlock switch S4 ground connection; " 86 end " of auxiliary reclay K2 connects " 2 end " of fuse F 3; " 1 end " parallel connection of " 1 end " of relay K 1, fuse F 1, " 1 end " of fuse F 2 and fuse F 3; Three rocker switch S3 connect solenoid operated directional valve.
Further, three rocker switchs that rocker switch S3 resets for band, and interposition is a start bit.
Further, quick change unlock switch S4 be two not with the rocker switch that resets.
Further, be integrated with operating cylinder on the standard fast replacing device.
Further, solenoid operated directional valve is the three-position four-way valve solenoid operated directional valve.
The operating principle of the utility model: system detects the open and-shut mode of quick change unlock switch S4 through watch-dog " 4 end ", and S4 is in closure state when the quick change unlock switch, and during promptly non-released state, watch-dog is not done prompting.When being in, opens quick change unlock switch S4; When being released state; Watch-dog provides the sound and light alarm prompting, and programmed instruction is put low level with the auxiliary reclay K2 coil earth terminal that watch-dog " 3 end " connects simultaneously, and auxiliary reclay K2 gets an electric shock and gets under the electric situation closed at coil.Press three rocker switch S3 this moment up or down; The coil of solenoid operated directional valve begins; Solenoid operated directional valve promotes valve core movement under the effect of electromagnetic coil; Working oil path pressure oil flow direction changes, and operating cylinder integrated on the standard reversing arrangement carries out stretching motion under the promotion of pressure oil, thereby realizes the electrichydraulic control to the standard fast replacing device.
The beneficial effect of the utility model is: the improvement through to the pure hydraulic control system of quick change, change control mode into electrichydraulic control, and simplified the layout of hydraulic control circuit, practiced thrift cost.Adopt auxiliary reclay K2 and three bit strips to reset the two-stage series connection switch control that rocker switch S3 forms of solenoid operated directional valve coil control circuit; And the open and-shut mode of quick change unlock switch is pointed out through human-computer interaction interface; Avoided to a certain extent having improved the processing safety of system because of the closed phenomenon that causes the misoperation of standard fast replacing device of switch mistake.
Description of drawings
Fig. 1 is the control principle sketch map of the utility model;
Fig. 2 is the control strategy flow chart of the utility model;
Fig. 3 is the schematic diagram of pure hydraulic control system mode in the prior art.
Among the figure: 1, hydraulic pilot pump, 2, guide's oil sources piece, 3, solenoid operated directional valve, 4, the standard fast replacing device, 9, watch-dog, 12, key switch, 14, battery, 16, oil considers, 17, hydraulic oil container, 18, reversal valve, 19, guide's pedal.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is described further.
As shown in Figure 1; The utility model comprises hydraulic pilot pump 1, guide's oil sources piece 2, solenoid operated directional valve 3, standard fast replacing device 4, oil worry 16 and hydraulic oil container 17; The oil inlet end of hydraulic pilot pump 1 is considered 16 through oil and is connected hydraulic oil container 17; The oil outlet end of hydraulic pilot pump 1 connects solenoid operated directional valve 3 through guide's oil sources piece 2, and solenoid operated directional valve 3 connects standard fast replacing device 4; Also comprise power supply plug-in strip S2, battery 14, relay K 1, key switch 12, fuse F 1, fuse F 2, fuse F 3, watch-dog 9, quick change unlock switch S4, auxiliary reclay K2 and three rocker switch S3; Power supply plug-in strip S2 one end ground connection, the other end connect successively battery 14 and power supply relay K1; Power supply relay K1 one end ground connection, the other end connect successively " 2 end " of key switch 12 and fuse F 1; " 1 end " of watch-dog connects " 2 end " of fuse F 2, " 2 end " ground connection of watch-dog, and its " 3 end " connect successively auxiliary reclay K2 and three rocker switch S3, its " 4 end " is through quick change unlock switch S4 ground connection; " 86 end " of auxiliary reclay K2 connects " 2 end " of fuse F 3; " 1 end " parallel connection of " 1 end " of relay K 1, fuse F 1, " 1 end " of fuse F 2 and fuse F 3; Three rocker switch S3 connect solenoid operated directional valve 3.
Wherein, three rocker switchs that rocker switch S3 resets for band, and interposition is a start bit.Quick change unlock switch S4 be two not with the rocker switch that resets.Be integrated with operating cylinder on the standard fast replacing device 4.Solenoid operated directional valve 3 is the three-position four-way valve solenoid operated directional valve.
When implementing above-mentioned novel hydraulic excavator annex quick change control system, cooperate corresponding programming, as shown in Figure 2; Its control method is following: at first that power supply plug-in strip S2 is closed, key switch 12 is got to " ON " shelves then; This moment, the coil of power supply relay K1 got; Power supply relay K1 is electrically connected quick change unlock switch S4 through watch-dog, quick change unlock switch S4 be two not with the rocker switch that resets, be arranged on the right armrest box of hydraulic crawler excavator.When the user opened quick change unlock switch S4, watch-dog 9 received the trigger switch signal, and promptly the on off state of " 4 end " of watch-dog 9 detects mouth and detects low level.Can also set up additional function this moment through programming, as: watch-dog 9 ejects quick change release sign at the homepage zone of alarm, and the flicker warning, and buzzer is rung simultaneously, and can be through the ventil noise reduction on the watch-dog 9.
Then, utilize auxiliary reclay K2 and the three bit strips rocker switch S3 that resets to connect and control the electric power loop of solenoid operated directional valve 3 coils, the three bit strips rocker switch S3 that resets is arranged on the right armrest box of hydraulic crawler excavator, with user-friendly.Auxiliary reclay K2 contact is closed under the effect of quick change unlock switch S4.If this moment, the user needed operation standard fast replacing device 4, then press the three bit strips rocker switch S3 that resets up or down, can control the direction of motion of 3-position 4-way solenoid operated directional valve 3.Solenoid operated directional valve 3 electromagnetic coils energising subsequently, solenoid operated directional valve 3 guiding valve setting in motions, 4 actions of standard fast replacing device; If this moment, the user did not need operation standard fast replacing device 4, then close quick change unlock switch S4.
It is thus clear that, through quick change control system being carried out the improvement of electrichydraulic control, reduced the complexity of stringing, reduced cost, improved the safety of operation.
Claims (5)
1. a novel hydraulic excavator annex quick change is controlled system; Comprise hydraulic pilot pump (1), guide's oil sources piece (2), solenoid operated directional valve (3), standard fast replacing device (4), oil worry (16) and hydraulic oil container (17); The oil inlet end of hydraulic pilot pump (1) is considered (16) through oil and is connected hydraulic oil container (17); The oil outlet end of hydraulic pilot pump (1) connects solenoid operated directional valve (3) through guide's oil sources piece (2), and solenoid operated directional valve (3) connects standard fast replacing device (4); It is characterized in that, also comprise power supply plug-in strip S2, battery (14), relay K 1, key switch (12), fuse F 1, fuse F 2, fuse F 3, watch-dog (9), quick change unlock switch S4, auxiliary reclay K2 and three rocker switch S3; Power supply plug-in strip S2 one end ground connection, the other end connect successively battery (14) and power supply relay K1; Power supply relay K1 one end ground connection, the other end connect successively " 2 end " of key switch (12) and fuse F 1; " 1 end " of watch-dog connects " 2 end " of fuse F 2, " 2 end " ground connection of watch-dog, and its " 3 end " connect successively auxiliary reclay K2 and three rocker switch S3, its " 4 end " is through quick change unlock switch S4 ground connection; " 86 end " of auxiliary reclay K2 connects " 2 end " of fuse F 3; " 1 end " parallel connection of " 1 end " of relay K 1, fuse F 1, " 1 end " of fuse F 2 and fuse F 3; Three rocker switch S3 connect solenoid operated directional valve (3).
2. a kind of novel hydraulic excavator annex quick change according to claim 1 is controlled system, it is characterized in that, and the rocker switch that described three rocker switch S3 reset for band, and interposition is a start bit.
3. a kind of novel hydraulic excavator annex quick change control according to claim 1 system is characterized in that, described quick change unlock switch S4 be two not with the rocker switch that resets.
4. a kind of novel hydraulic excavator annex quick change according to claim 1 is controlled system, it is characterized in that, is integrated with operating cylinder on the described standard fast replacing device (4).
5. a kind of novel hydraulic excavator annex quick change according to claim 1 is controlled system, it is characterized in that described solenoid operated directional valve (3) is the three-position four-way valve solenoid operated directional valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120466817 CN202401510U (en) | 2011-11-22 | 2011-11-22 | Novel quick-change control system for accessory of hydraulic excavator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120466817 CN202401510U (en) | 2011-11-22 | 2011-11-22 | Novel quick-change control system for accessory of hydraulic excavator |
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| Publication Number | Publication Date |
|---|---|
| CN202401510U true CN202401510U (en) | 2012-08-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120466817 Expired - Lifetime CN202401510U (en) | 2011-11-22 | 2011-11-22 | Novel quick-change control system for accessory of hydraulic excavator |
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| CN (1) | CN202401510U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113513510A (en) * | 2021-05-20 | 2021-10-19 | 徐州徐工挖掘机械有限公司 | Pressure flow automatic control quick-change hydraulic system |
-
2011
- 2011-11-22 CN CN 201120466817 patent/CN202401510U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113513510A (en) * | 2021-05-20 | 2021-10-19 | 徐州徐工挖掘机械有限公司 | Pressure flow automatic control quick-change hydraulic system |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120829 |
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| CX01 | Expiry of patent term |