CN202833442U - Crane hydraulic heat-dissipation electric control system - Google Patents
Crane hydraulic heat-dissipation electric control system Download PDFInfo
- Publication number
- CN202833442U CN202833442U CN 201220499564 CN201220499564U CN202833442U CN 202833442 U CN202833442 U CN 202833442U CN 201220499564 CN201220499564 CN 201220499564 CN 201220499564 U CN201220499564 U CN 201220499564U CN 202833442 U CN202833442 U CN 202833442U
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- temperature
- hydraulic
- control system
- entire car
- car controller
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Abstract
The utility model discloses a crane hydraulic heat-dissipation electric control system which comprises a first temperature sensor, a second temperature sensor, a first magnetic valve, a second magnetic valve, an electric hydraulic oil heat-dissipation device, a whole machine controller, a relay, a seesaw switch, an alarm unit and a direct-current source, wherein the whole machine controller controls the second magnetic valve to control starting and stopping of hydraulic actions of a whole machine. The first temperature sensor and the second temperature sensor are respectively used for detecting oil temperature of a hydraulic main valve and a hydraulic oil box oil returning port, the whole machine controller procedure controls a heat-dissipation method of a hydraulic system according to two temperature signals, hydraulic heat dissipation is controlled timely, the hydraulic oil temperature is balanced, and the problem that an electric control method in the prior art is single is resolved. An overtemperature protection function is added, and when the temperature of the hydraulic oil box is higher than the preset alarm temperature, acousto-optic alarm is conducted, and an operator can find a temperature alarm state timely. When the temperature of a hydraulic element is about to be higher than the ultimate temperature, hydraulic actions are cut off, the hydraulic element is prevented from being damaged, and work of the whole machine is safe and reliable.
Description
Technical field
The utility model relates to a kind of hoist hydraulic pressure heat radiation automatical control system.
Background technique
In hoist, the height of the temperature of hydraulic oil is closely bound up with hydraulic work system efficient, so the hydraulic pressure radiating control is all extremely important for use and the safety of car load.The temperature of crane hydraulic system is one of core parameter of hoist work efficient, therefore only in the situation of hydraulic system temperature in normal range of operation, the hydraulic work system efficient of hoist could be up to standard, otherwise, hoist can occur various as the unable state of work, as walking, hoist slow in one's movements etc.
Electric control system controls mode to hoist hydraulic pressure heat radiation of the prior art is single, causes easily the job insecurity of sink and causes hydraulic oil temperature too high, and cause the hydraulic work system Efficiency Decreasing.When the temperature of hydraulic valve was spent above 95 ℃, the temperature of oil hydraulic pump also surpassed 100 ℃, if this moment, hoist still worked long hours, then can burn the hydraulic pressure components and parts.
The model utility content
A kind of hoist hydraulic pressure heat radiation automatical control system purpose of the present utility model is, by gathering the oil temperature temperature signal input vehicle control unit controls of hydraulic main valve and two positions of hydraulic oil container return opening, realization guarantees hydraulic work efficient and the Security of car load to the accurate control of hoist hydraulic pressure heat radiation.
A kind of hoist hydraulic pressure heat radiation automatical control system comprises the first temperature transducer, the second temperature transducer, the first solenoid valve, the second solenoid valve, electric hydaulic oil radiator, entire car controller, relay, rocker switch, alarm unit and DC electrical source;
Entire car controller is by the start and stop of described the second solenoid valve of control with control car load hydraulic operation, and described the first temperature transducer, the second temperature transducer are respectively applied to detect the oil temperature at hydraulic main valve and hydraulic oil container return opening place;
Two temperature transducers and rocker switch all link to each other with the entire car controller input end; Coil and the alarm unit of two solenoid valves, relay all link to each other with the entire car controller output terminal; The electric hydaulic oil radiator is controlled by relay; Described DC electrical source links to each other with entire car controller.
Be serially connected with fus in the line of described DC electrical source and entire car controller.
Be serially connected with fus in the current supply circuit at described electric hydaulic oil radiator place.
Be serially connected with fus in the circuit of described rocker switch place.
Described alarm unit comprises a kind of in voice guard or the picture and text display alarm device at least.
Beneficial effect
A kind of hoist hydraulic pressure heat radiation of the utility model automatical control system, by gathering the oil temperature temperature signal input entire car controller of hydraulic main valve and two positions of hydraulic oil container return opening, by the temperature signal control hydraulic system radiating mode of entire car controller program according to two positions, in time dispel the heat by electrical control hydraulic pressure, make the hydraulic fluid temperature balance, allow the working efficiency of hydraulic system ensure to some extent, solved the single problem of automatically controlled mode in the conventional art, added overheat protection function, if and the alarm temperature (75 ℃) that is higher than setting then carries out acoustooptic alarm, the operator can in time find the temperature pre-warning state; When hydraulic element are about to overstep the extreme limit temperature, cut off hydraulic operation, protected hydraulic element can not damage; Guaranteed the efficient of crane hydraulic system, made car load work more safe and reliable.
Description of drawings
Fig. 1 is the utility model structured flowchart;
Fig. 2 is circuit connection diagram of the present utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is described further:
As shown in Figure 1, a kind of hoist hydraulic pressure heat radiation of the utility model automatical control system comprises the first temperature transducer, the second temperature transducer, the first solenoid valve, the second solenoid valve, electric hydaulic oil radiator, entire car controller, relay, rocker switch, alarm unit and 24V DC electrical source; The electric hydaulic oil radiator is fan.
The first solenoid valve is the switching that one-level heat dissipation electrical magnet valve passes through the control hydraulic circuit, selects the oil circuit through engine water tank, utilizes engine water tank radiator realization one-level to dispel the heat; The second solenoid valve is the pilot control solenoid valve, and entire car controller is by the start and stop of control pilot control solenoid valve with control car load hydraulic operation; Described the first temperature transducer, the second temperature transducer are respectively applied to detect the oil temperature at hydraulic main valve and hydraulic oil container return opening place.
Two temperature transducers and rocker switch all link to each other with the entire car controller input end; Coil and the alarm unit of two solenoid valves, relay all link to each other with the entire car controller output terminal; The electric hydaulic oil radiator links to each other with the contact of relay; The 24V DC electrical source links to each other with entire car controller.
As shown in Figure 2, circuit connection diagram of the present utility model, wherein FU1, FU2 and FU3 are fus, and R1, R2 are oil temperature sensor, and H1 is continuous acoustooptic alarm buzzer, H2 is interrupted acousto-optic alarm buzzer, Y1 is one-level heat dissipation electrical magnet valve, and Y2 is the pilot control solenoid valve, and K1 is the two-class heat dissipation relay, K2 is that two-class heat dissipation sticks up a class switch, and M1 is the two-class heat dissipation electric fan.
Its working procedure is as follows:
When hoist was worked, hydraulic oil temperature constantly raise, and when main valve oil temperature sensor R1 detected temperature above 40 ℃, controller received temperature signal, and control one-level heat dissipation electrical magnet valve Y1 gets electric, thereby starts the one-level heat radiation; Until temperature is when being lower than 40 ℃, Y1 solenoid valve dead electricity stops the one-level heat radiation.
When tank drainback temperature transducer R2 detected temperature above 65 ℃, controller received temperature signal, and control two-class heat dissipation relay K 1 coil gets electric, while K1 make contact, and two-class heat dissipation electric fan M1 starts working; Until temperature is when being lower than 65 ℃, the K1 coil losing electricity, M1 quits work.
When tank drainback temperature transducer R2 detected temperature above 75 ℃, controller received temperature signal, and the interior continuously acoustooptic alarm buzzer H1 of control operator cabin gets electric, reminds the early warning of operator's hydraulic fluid temperature; Until temperature is when being lower than 75 ℃, the H1 dead electricity stops continuous acoustooptic alarm.
When tank drainback temperature transducer R2 detected temperature and surpasses 85 ℃ or main valve temperature and surpass 95 ℃, controller received temperature signal, control pilot control solenoid valve Y2 dead electricity, and the car load hydraulic operation can not carry out any work; Until the tank drainback temperature is lower than 85 ℃ and main valve temperature when being lower than 95 ℃, Y2 gets electric, and entire car controller returns to working state.
One-level heat dissipation electrical magnet valve Y1 and two-class heat dissipation relay K 1 coil work alone mutually, are independent of each other, can be simultaneously electric or simultaneously must not electricity.
1. because oil temperature sensor signal source temperature has fluctuation, done delay control on the program, i.e. behind the oil temperature sensor signal input entire car controller, postpone 1-2 and export again control second, protect solenoid valve and electric fan, can not open frequently and close, prolonged the working life of electricity piece;
If 2. oil temperature sensor lost efficacy or the signaling line that links to each other with oil temperature sensor breaks down, then controller can't detect temperature signal, so that the interrupted alarm buzzer H2 of acousto-optic gets electric in the operator cabin, remind the operator that fault is arranged, and hydraulic system still needs to dispel the heat, this moment, program setting triggered the one-level heat radiation for acquiescence, namely so that Y1 gets electric, manual unlocking two-class heat dissipation rocker switch K2 then when needing two-class heat dissipation so that K1 gets electricly, carries out two-class heat dissipation thereby open electric fan after the K2 closure.
Sound and light of alarm also can be accomplished to show with icon or literal in the display device.
Claims (5)
1. hoist hydraulic pressure heat radiation automatical control system, it is characterized in that, comprise the first temperature transducer, the second temperature transducer, the first solenoid valve, the second solenoid valve, electric hydaulic oil radiator, entire car controller, relay, rocker switch, alarm unit and DC electrical source;
Entire car controller is by the start and stop of described the second solenoid valve of control with control car load hydraulic operation, and described the first temperature transducer, the second temperature transducer are respectively applied to detect the oil temperature at hydraulic main valve and hydraulic oil container return opening place;
Two temperature transducers and rocker switch all link to each other with the entire car controller input end; Coil and the alarm unit of two solenoid valves, relay all link to each other with the entire car controller output terminal; The electric hydaulic oil radiator is controlled by relay; Described DC electrical source links to each other with entire car controller.
2. hoist hydraulic pressure heat radiation automatical control system according to claim 1 is characterized in that, is serially connected with fus in the line of described DC electrical source and entire car controller.
3. each described hoist hydraulic pressure heat radiation automatical control system according to claim 1 and 2 is characterized in that, is serially connected with fus in the current supply circuit at described electric hydaulic oil radiator place.
4. hoist hydraulic pressure heat radiation automatical control system according to claim 3 is characterized in that, is serially connected with fus in the circuit of described rocker switch place.
5. hoist hydraulic pressure according to claim 4 heat radiation automatical control system is characterized in that, described alarm unit comprises a kind of in voice guard or the picture and text display alarm device at least.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220499564 CN202833442U (en) | 2012-09-27 | 2012-09-27 | Crane hydraulic heat-dissipation electric control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220499564 CN202833442U (en) | 2012-09-27 | 2012-09-27 | Crane hydraulic heat-dissipation electric control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202833442U true CN202833442U (en) | 2013-03-27 |
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ID=47945157
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220499564 Expired - Lifetime CN202833442U (en) | 2012-09-27 | 2012-09-27 | Crane hydraulic heat-dissipation electric control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202833442U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103741760A (en) * | 2013-12-25 | 2014-04-23 | 柳州正菱集团有限公司 | Hydraulic oil high-temperature protection method |
| CN104331098A (en) * | 2014-09-28 | 2015-02-04 | 河南重工起重机集团有限公司 | High temperature detection system specialized for crane |
-
2012
- 2012-09-27 CN CN 201220499564 patent/CN202833442U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103741760A (en) * | 2013-12-25 | 2014-04-23 | 柳州正菱集团有限公司 | Hydraulic oil high-temperature protection method |
| CN104331098A (en) * | 2014-09-28 | 2015-02-04 | 河南重工起重机集团有限公司 | High temperature detection system specialized for crane |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130327 |
|
| CX01 | Expiry of patent term |