CN202867805U - Impact resistant electrical control system of walking hydraulic transmission box of drill jumbo - Google Patents
Impact resistant electrical control system of walking hydraulic transmission box of drill jumbo Download PDFInfo
- Publication number
- CN202867805U CN202867805U CN 201220513996 CN201220513996U CN202867805U CN 202867805 U CN202867805 U CN 202867805U CN 201220513996 CN201220513996 CN 201220513996 CN 201220513996 U CN201220513996 U CN 201220513996U CN 202867805 U CN202867805 U CN 202867805U
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- China
- Prior art keywords
- transmission box
- hydraulic transmission
- control system
- drill jumbo
- solenoid valve
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Abstract
The utility model discloses an impact resistant electrical control system of a walking hydraulic transmission box of a drill jumbo. The impact resistant electrical control system of the walking hydraulic transmission box of the drill jumbo comprises a cam combination switch, a logical control loop and a hydraulic solenoid valve. The output contactors of the cam combination switch are respectively connected with the relays of the logical control loop, and the relays are connected with the hydraulic solenoid valve. The impact resistant electrical control system of the walking hydraulic transmission box of the drill jumbo has the advantages that the control circuit of the hydraulic transmission box has the advantages of being easy to control, reliable in operation, and low in cost, and the impact resistant electrical control system can meet the electric control requirements of the shifting of different hydraulic transmission box, can protect the hydraulic transmission box in operation from being affected by the impact of a hydraulic system in a shifting process, and prolongs the service life of the hydraulic transmission box.
Description
Technical field
The utility model relates to the electrical control of various hydraulic transmission box gearshifts, especially relates to a kind of drill jumbo walking hydraulic transmission box protecting against shock electric control system.
Background technique
Drill jumbo is a kind of construction equipment in the tunnel that is used in, required borehole when be used for digging Tunnel Blasting.The drill jumbo traveller is one and is comprised of diesel engine and hydraulic transmission box.
In the electrical control of tradition control hydraulic transmission box, main integral switch directly drives the gearshift solenoid valve, because integral switch is meeting moment power on/off in shift process, will cause enormous impact to the Wet type friction clutch disc of gearbox like this, thereby reduces the working life of gearbox.
The characteristics of tradition hydraulic transmission box gearshift control are:
1, the shift handle of producer's autogamy, its handle needs fixing especially, is inconvenient to install, and need to be customized especially, cost is high.
2, integral switch directly drives fluid power gearshift solenoid valve, and meeting moment power on/off will cause enormous impact to the Wet type friction clutch disc of gearbox like this in the integral switch shift process.Thereby affect the working life of gearbox.
The model utility content
The utility model has overcome shortcoming of the prior art, and a kind of drill jumbo walking hydraulic transmission box protecting against shock electric control system is provided.
The technical solution of the utility model is: a kind of drill jumbo walking hydraulic transmission box protecting against shock electric control system comprises cam set combination switch, loop control logic and fluid power solenoid valve; The output contact of the described cam set combination switch respectively relay in andlogic control loop connects, and described relay is connected with the fluid power solenoid valve.
Described relay comprises auxiliary reclay and energization delay relay.
Described auxiliary reclay comprises the auxiliary reclay for speed governing, reversing and forward direction.
The number of described energization delay relay is identical with the number of the auxiliary reclay that is used for speed governing.
Described auxiliary reclay for speed governing is two.
Compared with prior art, the utility model has the advantages that:
1, hydraulic transmission box gearshift control circuit of the present utility model has operation advantage simple and easy, reliable, with low cost;
2, hydraulic transmission box gearshift control circuit of the present utility model can satisfy different hydraulic transmission box gearshift electrical control requirements;
3, hydraulic transmission box gearshift control circuit of the present utility model can protect hydraulic transmission box when operation, and the shock effect of hydraulic system when not shifted gears prolongs its working life.
Description of drawings
The utility model will illustrate by example and with reference to the mode of accompanying drawing, wherein:
Fig. 1 is systematic schematic diagram of the present utility model;
Fig. 2 is the time-delay control loop schematic representation in the loop control logic of the present utility model;
Fig. 3 is the driving loop schematic representation of gearshift solenoid valve in the loop control logic of the present utility model.
Embodiment
A kind of drill jumbo walking hydraulic transmission box protecting against shock electric control system as shown in Figure 1, comprising: cam set combination switch, loop control logic and fluid power solenoid valve; Described cam set combination switch is used for selecting traveling gears, and the shift signal of output is to loop control logic; Described loop control logic is exported corresponding control signal to the fluid power solenoid valve according to the shift signal of receiving, to drive the hydraulic transmission box gearshift.
Described loop control logic carries out logic control, the control so that when gearshift delays time, mask the impulsive current that frequent operation produces, eliminate the frequent power on/off of solenoid valve, minimizing is to the impact of clutch-plate, thereby the clutch-plate of protection gearbox, the time-delay control loop of described loop control logic as shown in Figure 2, comprise: cam set combination switch 4SL1, power line 116L, common wire G01, auxiliary reclay 4KA1,4KA2,4KA3,4KA4,4KA5 and 4KA6 etc., wherein: 4KA1 and 4KA2 are for being used for the auxiliary reclay of speed governing, and quantity can increase and decrease according to required gear number; 4KA3 and 4KA4 are respectively applied to determine reversing and forward direction; 4T1 and 4T2 are energization delay relay, and quantity is consistent with the quantity of the auxiliary reclay that is used for speed governing.
4KA5 has three pairs of normally opened contacts, a pair of normally-closed contact; 4KA1,4KA2,4KA3,4KA4 all have two pairs of normally opened contacts, and energization delay relay has a pair of normally opened contact.Four output contacts of cam set combination switch link with the drive coil of 4KA1,4KA2,4KA3,4KA4 respectively, 4KA3 is connected contact 5 and is connected with 116L with 4KA4, after linking together, the contact 9 of 4KA3 and 4KA4 links to each other with the contact 5 of 4KA5 and 4KA1, the contact 9 of 4KA5 is connected with the contact 15 of 4T1, the contact 9 of 4KA1 and the coil terminals that is connected to 4T1 and 4KA5 after the contact 16 of 4T1 links to each other; The normally-closed contact 4 of 4KA5 is connected to 116L, the normally-closed contact 12 of 4KA5 links with the contact 5 of 4KA6 and 4KA2 respectively, be connected contact 15 and connect in the contact 9 of 4KA6 with 4T2, be connected contact 9 and connect in the contact 16 of 4T2 with 4KA2, and be connected drive coil with 4T2 with 4KA6 and be connected.Each auxiliary reclay is connected the outlet terminal of coil and is connected with common wire with energization delay relay.
The driving loop of described gearshift solenoid valve as shown in Figure 3, comprise: the terminal 6 of the contact 7 of 4KA5 and 4KA3,4KA4,4KA5,4KA6 links with 116L respectively, the contact 11 of 4KA5 and fluid power solenoid valve 4YA1(speed governing 1) be connected, 4KA5 be connected with 4KA6 terminal 10 connect after with fluid power solenoid valve 4YA2(speed governing 2) be connected, the terminal 10 of 4KA3 and fluid power solenoid valve 4YA3(reversing) be connected, the terminal 10 of 4KA4 and fluid power solenoid valve 4YA4(forward direction) be connected, the outlet terminal of each fluid power solenoid valve links to each other with common wire respectively.
The above " contact " is the abbreviation of normally opened contact except special instruction is normally-closed contact.
The output shift signal of cam set combination switch drives the fluid power solenoid valve by energization delay relay and auxiliary reclay logical transition, and gearbox is shifted gears, and below with reference to Fig. 2, Fig. 3 concrete working method of the present utility model is described:
When cam set combination switch during in ' 0 ' position, all relays and solenoid valve keep original state, when the cam set combination switch is screwed into when moving ahead ' 1 ' file location, 4KA1,4KA2 and 4KA4 simultaneously electric; Be screwed into when moving ahead ' 2 ' file location, the 4KA1 dead electricity, 4KA2 and 4KA4 continue to keep electricly; Be screwed into when moving ahead ' 3 ' file location, auxiliary reclay 4KA2 dead electricity, 4KA4 continues to keep electricly; Otherwise, when the cam set combination switch is screwed into when retreating ' 1 ' file location, 4KA1,4KA2 and 4KA3 simultaneously electric; Be screwed into when retreating ' 2 ' file location, the 4KA1 dead electricity, 4KA2 and 4KA3 continue to keep electricly; Be screwed into when retreating ' 3 ' file location, the 4KA2 dead electricity, 4KA3 continues to keep electricly.
As above-mentioned, when the cam set combination switch is screwed into when moving ahead ' 1 ' grade of (or retreating ' 1 ' grade) position, 4KA1 then, 4KA2,4KA4(or 4KA3) must be electric, the normally opened contact of these three auxiliary reclays is closed, and normally-closed contact disconnects, thereby so that 4KA5 gets electric, the normally opened contact of 4KA5 is closed, normally-closed contact disconnects, then so that 4T1 must establish the beginning timing by cable, when the cam set combination switch remains on ' 1 ' file location, no matter whether timing time reaches the on-delay time that 4T1 sets, 4KA5 can dead electricity, and its normally-closed contact remains open always, so that 4KA6 and 4T2 can not get is electric;
Do not reach the on-delay of its setting during the time in the 4T1 timing, if the cam set combination switch is screwed into ' 2 ' file location from " 1 grade ", 4KA1 dead electricity then, but 4KA4(or 4KA3) keep electricly, and this moment is not because the 4T1 timing also reaches the on-delay time of setting, its normally-closed contact remains closed always, so 4KA5 still keeps electricly, 4KA6 and 4T2 can not get electric; When the 4T1 timing reaches on-delay time of setting, then the normally-closed contact of 4T1 disconnects, thereby so that the 4KA5 dead electricity, its normally-closed contact is closed, and because of present ' 2 ' file location, 4KA2 keeps electricly, its normally opened contact is closed, thereby so that 4KA6 get electric, then so that 4T2 must establish the beginning timing by cable;
Do not reach the on-delay of its setting during the time in the 4T1 timing, if the cam set combination switch directly is screwed into ' 3 ' file location from ' 1 ' grade, then 4KA1 and 4KA2 dead electricity, but 4KA4(or 4KA3) keep electricly, and this moment is not because the 4T1 timing also reaches the on-delay time of setting, its normally-closed contact remains closed always, so 4KA5 still keeps electricly, 4KA6 and 4T2 can not get electric; When the 4T1 timing reaches on-delay time of setting, then the normally-closed contact of 4T1 disconnects, thereby so that the 4KA5 dead electricity, its normally-closed contact is closed, because of present ' 3 ' file location, 4KA2 dead electricity, and its normally opened contact disconnection, 4KA6 and 4T2 can not get electric.
When the cam set combination switch in ' 2 ' file location, and 4KA6 gets electric and 4T2 must establish the beginning timing by cable, and the on-delay that does not reach its setting in the 4T2 timing is during the time, if the cam set combination switch is screwed into ' 3 ' file location, 4KA2 dead electricity then, 4KA4(or 4KA3) continue to keep electricly; And at this moment because the 4T2 timing does not also reach the on-delay time of setting, its normally-closed contact remains closed always, so 4KA6 still keeps electricly, 4KA5 and 4T1 can not get electric; When the 4T2 timing reaches on-delay time of setting, then the normally-closed contact of 4T2 disconnects, thus so that 4KA6 dead electricity.
As 4KA5,4KA4(or 4KA3) simultaneously when electric, its normally opened contact is closed, solenoid valve 4YA1,4YA2,4YA4(or 4YA3) charged, at this moment gearbox is at fast state (namely 1 grade); As 4KA6,4KA4(or 4KA3) when electric, its normally opened contact is closed, make solenoid valve 4YA2,4YA4(or 4YA3) charged, at this moment gearbox is at middling speed state (namely 2 grades), as 4KA4(or 4KA3) independent when electric, 4KA4(or 4KA3) the normally opened contact closure, 4YA4(or 4YA3) charged separately, at this moment gearbox is at lower-speed state (namely 3 grades).
When the cam set combination switch switches to ' 1 ' grade from ' 0 ' grade, solenoid valve 4YA1,4YA2,4YA4(or 4YA3) electric (hydraulic transmission box enters fast state, 1 grade), just the cam set combination switch is not switched to ' 2 ' file location if reach the on-delay of setting ' 1 ' grade of waiting time during the time, solenoid valve 4YA1,4YA2,4YA4(or 4YA3) still keep electricly (hydraulic transmission box maintenance fast state), until the time reaches the on-delay of setting during the time, solenoid valve 4YA1 dead electricity, 4YA2,4YA4(or 4YA3) keep electricly (hydraulic transmission box enters the middling speed state); As not doing in ' 2 ' file location to stop and hydraulic transmission box still is in fast state lower time and just the cam set combination switch is directly switched to ' 3 ' file location by ' 1 ' file location, then hydraulic transmission box keeps fast state to last till that the on-delay of setting is after the time, solenoid valve 4YA1,4YA2 dead electricity, 4YA4(or 4YA3) keep electricly (hydraulic transmission box enters lower-speed state); If the on-delay that keeps the middling speed state duration not reach setting at ' 2 ' file location and hydraulic transmission box just switches to ' 3 ' file location with the cam set combination switch during time, solenoid valve 4YA1 dead electricity, 4YA2,4YA4(or 4YA3) still keep electricly (hydraulic transmission box keeps the middling speed state), until hydraulic transmission box middling speed state duration reaches the on-delay time of setting, solenoid valve 4YA1,4YA2 dead electricity, 4YA4(or 4YA3) keep electricly (hydraulic transmission box enters lower-speed state).
Working principle of the present utility model is: after the shift signal of cam set combination switch output is changed through auxiliary reclay, change by two time relays again, can remain within a certain period of time on one grade during trip stop, carry out again afterwards trip stop, and other solenoid valves can not move, and so just can reduce hydraulic system to the impact of clutch-plate.
Claims (5)
1. a drill jumbo walking hydraulic transmission box protecting against shock electric control system is characterized in that: comprising: cam set combination switch, loop control logic and fluid power solenoid valve; The output contact of the described cam set combination switch respectively relay in andlogic control loop connects, and described relay is connected with the fluid power solenoid valve.
2. drill jumbo according to claim 1 walking hydraulic transmission box protecting against shock electric control system, it is characterized in that: described relay comprises auxiliary reclay and energization delay relay.
3. drill jumbo according to claim 2 walking hydraulic transmission box protecting against shock electric control system, it is characterized in that: described auxiliary reclay comprises the auxiliary reclay for speed governing, reversing and forward direction.
4. drill jumbo according to claim 3 walking hydraulic transmission box protecting against shock electric control system is characterized in that: the number of described energization delay relay is identical with number for the auxiliary reclay of speed governing.
5. drill jumbo according to claim 4 walking hydraulic transmission box protecting against shock electric control system, it is characterized in that: described auxiliary reclay for speed governing is two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220513996 CN202867805U (en) | 2012-10-09 | 2012-10-09 | Impact resistant electrical control system of walking hydraulic transmission box of drill jumbo |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220513996 CN202867805U (en) | 2012-10-09 | 2012-10-09 | Impact resistant electrical control system of walking hydraulic transmission box of drill jumbo |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202867805U true CN202867805U (en) | 2013-04-10 |
Family
ID=48034527
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220513996 Expired - Lifetime CN202867805U (en) | 2012-10-09 | 2012-10-09 | Impact resistant electrical control system of walking hydraulic transmission box of drill jumbo |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202867805U (en) |
-
2012
- 2012-10-09 CN CN 201220513996 patent/CN202867805U/en not_active Expired - Lifetime
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130410 |