CN205200528U - Ladle turret's braking and accident drive arrangement - Google Patents
Ladle turret's braking and accident drive arrangement Download PDFInfo
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- CN205200528U CN205200528U CN201520949105.1U CN201520949105U CN205200528U CN 205200528 U CN205200528 U CN 205200528U CN 201520949105 U CN201520949105 U CN 201520949105U CN 205200528 U CN205200528 U CN 205200528U
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- ladle turret
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Abstract
The utility model provides a ladle turret's braking and accident drive arrangement, includes hydraulic motor, stopper, hand -operated direction valve, first hydraulic operated valve and two magenetic exchange valve, hydraulic motor passes through the clutch and installs in the hydraulic drive of speed reducer end and be connected with the pressure oil circuit through the hand -operated direction valve, the motor driving end that the stopper was installed at the speed reducer, its checking cylinder connects the pressure oil circuit and connects the oil tank through first hydraulic operated valve and the 2nd magenetic exchange valve in proper order through a magenetic exchange valve, a magenetic exchange valve's actuator port meets through two actuator port of two check valves with the hand -operated direction valve respectively, two control ports of first hydraulic operated valve meet two actuator port of hand -operated direction valve respectively. The utility model discloses a hand -operated direction valve can make the outage contracting brake declutch voluntarily in switch -on hydraulic motor oil circuit, not only can realize ladle turret's normal auto -lock, guarantees going on smoothly of ladle pouring, and the stopper can not influence hydraulic motor's accident drive function in addition.
Description
Technical field
The utility model relates to a kind of for carrying out braking the device that also can control fault ladle turret and rotate to ladle turret, belongs to technical field of metallurgical equipment.
Background technology
Ladle turret is the visual plant on steel plant continuous casting machine, and its effect waters steel position by being positioned to return back to by the fully loaded ladle of package location, pours into a mould, return back to the sky bag having watered molten steel by package location simultaneously, and transport.Ladle turret is driven by reductor, and reductor is provided with two power shafts, a power shaft and associated electric motor, and another power shaft and hydraulic motor are connected, and when ladle turret normally works, driving reductor by motor, is driven.When full factory main power source or motor device break down, hydraulic motor drives reductor by the hydraulic energy of hydraulic system accumulator storage, is emergency actuation.There is following problem in current ladle turret braking and accident whirligig:
One, ladle turret motor generally adopts the hydraulic push-rod brake be made up of brake bracket and electro hydraulicthruster to brake, during energising, and electro hydraulicthruster action, its push rod rises rapidly, and by leverage, brake scotch is opened (declutching); During power-off, the push rod of electro hydraulicthruster declines rapidly under spring force, and by leverage, brake scotch is closed up (band-type brake).When there is power outage, the hydraulic push-rod brake due to motor for speed reducer drive end is in band-type brake state, and therefore the hydraulic motor of reductor hydraulic-driven end does not drive ladle turret to rotate by reductor, does not also just have the pivotal effect of accident.Some ladle turrets become energising band-type brake brake design, the form that power-off is declutched, motor is in brake power-off, operate under the condition that brake scotch is opened (declutching), when motor power-off stall, brake obtains electric braking several seconds, then brake power-off, brake scotch is opened (declutching), and ladle turret is in does not have the state of brake self-locking.If the ladle now on a ladle revoliving arm is poured into a mould, another ladle revoliving arm connects steel ladle, because ladle turret does not have brake self-locking, ladle in dropping process to the shock and vibration that ladle turret produces, ladle turret can be made to produce a certain amount of deflection, thus affect the normal cast of ladle, also likely make ladle long nozzle run out of middle bag time serious, cause the production accident of badly bleeding.
Two, the hydraulic motor of ladle turret and hydraulic clutch separately control, and easily occurs that inharmonic phenomenon handled by hydraulic motor and hydraulic clutch.Such as sometimes handle hydraulic motor and but forgotten operating hydraulically operated clutch, affect the opportunity that ladle accident rotates adversely; Sometimes operate unintentionally the handle of hydraulic clutch, when motor drives ladle turret to rotate, motor passive rotation, causes the wearing and tearing of hydraulic motor.
Utility model content
The purpose of this utility model is the drawback for prior art, provides a kind of braking and accident actuating device of ladle turret, to realize normal self-locking and the emergency actuation of ladle turret.
Problem described in the utility model realizes with following technical proposals:
A kind of braking of ladle turret and accident actuating device, formation comprises hydraulic motor, brake, hand-operated direction valve, the first hydraulic operated valve and two bi-bit bi-pass solenoid directional control valves, described hydraulic motor by clutch be installed on reductor hydraulic-driven end and manually reversal valve be connected with pressure oil circuit; Described brake is arranged on the motor drive terminal of reductor, and its checking cylinder connects pressure oil circuit also successively through the first hydraulic operated valve and the second solenoid directional control valve connected tank by the first solenoid directional control valve; The actuator port of the first solenoid directional control valve connects with two actuator ports (A mouth and B mouth) of hand-operated direction valve respectively by two check valves; Two control ports of the first hydraulic operated valve connect two actuator ports of hand-operated direction valve respectively.
The braking of above-mentioned ladle turret and accident actuating device, clutch between described hydraulic motor and reductor is hydraulic clutch, the oil pocket of described hydraulic clutch is by the second hydraulic operated valve connected tank and connect with two actuator ports of hand-operated direction valve respectively by two check valves, and two control ports of the second hydraulic operated valve connect two actuator ports of hand-operated direction valve respectively.
The braking of above-mentioned ladle turret and accident actuating device, two hydraulic fluid ports of described hydraulic motor are equipped with meter in valve.
The braking of above-mentioned ladle turret and accident actuating device, be provided with overflow valve between two hydraulic fluid ports of described hydraulic motor.
The braking of above-mentioned ladle turret and accident actuating device, the checking cylinder of described brake and the in-line of hydraulic clutch are equipped with pressure-reducing valve.
The beneficial effects of the utility model are:
1. hand-operated direction valve of the present utility model can while connection hydraulic motor oil circuit, make power-off contracting brake automatic releasing, not only can realize the normal self-locking of ladle turret, ensure carrying out smoothly of steel ladle pouring, and brake can not affect the emergency actuation function of hydraulic motor.
2. hydraulic motor and hydraulic clutch are controlled by same reversal valve, and the inharmonious phenomenon both avoiding on handling, both ensure that and the smooth realization that ladle accident rotates can not cause again the meaningless wearing and tearing of hydraulic motor.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Fig. 1 is structural representation of the present utility model;
Fig. 2 is hydraulic system principle figure.
In figure, mark is as follows: 1, hand-operated direction valve, 2, second hydraulic operated valve, 3, first pressure-reducing valve, 4, first overflow valve, 5, second overflow valve, 6, hydraulic motor, 7, hydraulic clutch, 8, profile of tooth shaft joint, 9, first meter in valve, 10, second meter in valve, 11, first check valve, 12, second check valve, 13, 3rd check valve, 14, 4th check valve, 15, Pressure gauge, 16, checking cylinder, 17, first solenoid directional control valve, 18, first hydraulic operated valve, 19, second solenoid directional control valve, 20, second pressure-reducing valve, 21, reductor, 22, panoramic table base, 23, motor, 24, brake.
Detailed description of the invention
Referring to Fig. 1, ladle turret reductor 21 has two cover drive systems, and a set of is motor 23, and motor 23 is connected with an input (motor drive terminal) of reductor 21, and centre is provided with the brake 24 containing checking cylinder 16; The another set of emergency actuation system be made up of hydraulic motor 6, hydraulic clutch 7 and profile of tooth shaft joint 8, another input (hydraulic-driven end) of emergency actuation system and reductor 21 is connected, and panoramic table base 22 is static parts of ladle turret.
Referring to Fig. 2, in hydraulic braking system, the hydraulic control part of checking cylinder 16 is made up of two bi-bit bi-pass solenoid directional control valves (i.e. the first solenoid directional control valve 17 and the second solenoid directional control valve 19), the second pressure-reducing valve 20 and the first hydraulic operated valve 18, and to be divided with the hydraulic control portion of hydraulic motor 6 by the first check valve 11, the 3rd check valve 13 and be connected, two control ports of the first hydraulic operated valve 18 are connected with the entering of hydraulic motor 6, oil return circuit respectively.
In clutch hydraulic system, the hydraulic control part of hydraulic clutch 7 is made up of the second hydraulic operated valve 2, first pressure-reducing valve 3, and to be divided with the hydraulic control portion of hydraulic motor 6 by the second check valve 12, the 4th check valve 14 and be connected, wherein two control ports of the second hydraulic operated valve 2 are connected with the entering of hydraulic motor 6, oil return circuit respectively.
The hydraulic control system of hydraulic motor 6 is by hand-operated direction valve 1(three position four-way directional control valve), two meter in valves (first meter in valve 9 and the second meter in valve 10), two overflow valve (first overflow valve 4 and the second overflow valve 5) compositions, this system is by the first check valve 11, 3rd check valve 13 is connected with hydraulic braking system, by the second check valve 12, 4th check valve 14 is connected with clutch hydraulic system, the simultaneously control port of the first hydraulic operated valve 18 of hydraulic braking system and the second hydraulic operated valve 2 of clutch hydraulic system respectively with the entering of hydraulic motor 6, oil return circuit is connected.First overflow valve 4, second overflow valve 5 is overload protection elements, and the first meter in valve 9 and the second meter in valve 10 are for regulating ladle turret clockwise or be rotated counterclockwise speed.
Ladle turret is in course of normal operation (motor driving), the handle of hand-operated direction valve 1 is at meta, the fluid pressure line be connected with hydraulic motor 6 is all in unloading condition, oil pressure is not had in two control ports of the second hydraulic operated valve 2, second hydraulic operated valve 2 is in meta, is also in unloading condition, and the pressure oil in hydraulic clutch 7 is laid down from the second hydraulic operated valve 2, hydraulic clutch 7 is in disengaged position, and hydraulic motor 6 is thrown off with the input of reductor 21.
When normal and motor 23 no power of ladle turret, the control coil of the first solenoid directional control valve 17 must not electricity, and principal pressure oil circuit and hydraulic braking system are disconnected, and the hydraulic control hydraulic fluid port of the first hydraulic operated valve 18 does not have oil pressure, and the first hydraulic operated valve 18 is in meta.The control coil of the second solenoid directional control valve 19 also must not be electric, and the hydraulic oil of checking cylinder 16 epicoele will be laid down from the first hydraulic operated valve 18, second solenoid directional control valve 19.The piston of checking cylinder 16 is moved upward under the action of the spring, brake.First check valve 11, the 3rd check valve 13 make hydraulic braking system separate with the hydraulic control system of hydraulic motor 6, and at this moment hydraulic braking system is an independently hydraulic system.
When ladle turret is normal and motor 23 is energized, the control coil of the first solenoid directional control valve 17, second solenoid directional control valve 19 simultaneously electric, pressure oil is through the first solenoid directional control valve 17, the epicoele of checking cylinder 16 is entered after the second pressure-reducing valve 20 reduces pressure, the piston of checking cylinder 16 is declined, and brake 24 is opened.Ladle turret rotates under the driving of motor 23, arrive motor 23 power-off when pouring into a mould position, the control coil power-off of the first solenoid directional control valve 17, second solenoid directional control valve 19 simultaneously, principal pressure oil circuit and hydraulic braking system are disconnected, the hydraulic oil of checking cylinder 16 epicoele will be laid down from the first hydraulic operated valve 18, second solenoid directional control valve 19, the piston of checking cylinder 16 is moved upward under the action of the spring, brake.
Under electrical fault or power outage state, the handle of hand-operated direction valve 1 is pulled to a end, pressure oil enters left side oil circuit through hand-operated direction valve 1, enters hydraulic motor 6 through the first meter in valve 9; At pressure oil while hand-operated direction valve 1 enters left side oil circuit, pressure oil enters the control port of the first hydraulic operated valve 18 and the second hydraulic operated valve 2, the pressure oil entering the first hydraulic operated valve 18 makes the first hydraulic operated valve 18 spool move to left, and has cut off the oil circuit of the first hydraulic operated valve 18 off-load like this.The pressure oil entering the second hydraulic operated valve 2 makes the spool of the second hydraulic operated valve 2 move to right, and has so also cut off the oil circuit of the second hydraulic operated valve 2 off-load.Meanwhile, the first check valve 11 and the second check valve 12 opened by the pressure oil entered on the left of hand-operated direction valve 1 in oil circuit, and the pressure oil opening the first check valve 11 enters hydraulic braking system, enters the epicoele of checking cylinder 6 through the second pressure-reducing valve 20, piston is declined, and brake is opened.The pressure oil opening the second check valve 12 enters clutch hydraulic system, hydraulic clutch 7 is entered through the first pressure-reducing valve 3, hydraulic motor 6 is engaged with the profile of tooth shaft joint 8 of reductor 21, the pressure oil entering hydraulic motor 6 like this drives hydraulic motor 6 to operate, hydraulic motor 6 drives ladle turret to rotate, and oil return returns fuel tank from the right side pipeline be connected with hydraulic motor 6.When handling hand-operated direction valve 1 and making ladle turret arrival accident position, release handle, the spool of hand-operated direction valve 1 answers meta under the action of the spring, the left side be connected with hydraulic motor 6, right side oil circuit is all connected with oil return circuit, be in unloading condition, the first hydraulic operated valve 18 be meanwhile connected with left side oil circuit, the control port of the second hydraulic operated valve 2 is also in unloading condition, the spool of the first hydraulic operated valve 18 moves to right multiple meta under action of reset spring, due to the control coil dead electricity of the second solenoid directional control valve 19, the hydraulic oil of checking cylinder 16 epicoele is just from the first hydraulic operated valve 18, change valve 19 through two and unload oil return box, the piston of checking cylinder 16 will rise under the action of the spring, make brake.The simultaneously control port of the second hydraulic operated valve 2 is in unloading condition, and the spool of the second hydraulic operated valve 2 moves to left multiple meta under the effect of back-moving spring, and the hydraulic oil in hydraulic clutch 7 just unloads from the second hydraulic operated valve 2 and gets back to fuel tank.
Under electrical fault or power outage state, when the handle of hand-operated direction valve 1 being pulled to b end, situation with the handle of hand-operated direction valve 1 is pulled to when a holds similar, only the direction of rotation of ladle turret is contrary.
Claims (5)
1. the braking of a ladle turret and accident actuating device, it is characterized in that, it comprises hydraulic motor (6), brake (24), hand-operated direction valve (1), the first hydraulic operated valve (18) and two bi-bit bi-pass solenoid directional control valves, described hydraulic motor (6) by clutch be installed on reductor (21) hydraulic-driven end and manually reversal valve (1) be connected with pressure oil circuit; Described brake (24) is arranged on the motor drive terminal of reductor (21), and its checking cylinder (16) connects pressure oil circuit also successively through the first hydraulic operated valve (18) and the second solenoid directional control valve (19) connected tank by the first solenoid directional control valve (17); The actuator port of the first solenoid directional control valve (17) connects with two actuator ports of hand-operated direction valve (1) respectively by two check valves; Two control ports of the first hydraulic operated valve (18) connect two actuator ports of hand-operated direction valve (1) respectively.
2. the braking of a kind of ladle turret according to claim 1 and accident actuating device, it is characterized in that, clutch between described hydraulic motor (6) and reductor (21) is hydraulic clutch (7), the oil pocket of described hydraulic clutch (7) is by the second hydraulic operated valve (2) connected tank and connect with two actuator ports of hand-operated direction valve (1) respectively by two check valves, and two control ports of the second hydraulic operated valve (2) connect two actuator ports of hand-operated direction valve (1) respectively.
3. the braking of a kind of ladle turret according to claim 1 and 2 and accident actuating device, it is characterized in that, two hydraulic fluid ports of described hydraulic motor (6) are equipped with meter in valve.
4. the braking of a kind of ladle turret according to claim 3 and accident actuating device, is characterized in that, be provided with overflow valve between two hydraulic fluid ports of described hydraulic motor (6).
5. the braking of a kind of ladle turret according to claim 4 and accident actuating device, is characterized in that, the checking cylinder (16) of described brake (24) and the in-line of hydraulic clutch (7) are equipped with pressure-reducing valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520949105.1U CN205200528U (en) | 2015-11-25 | 2015-11-25 | Ladle turret's braking and accident drive arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520949105.1U CN205200528U (en) | 2015-11-25 | 2015-11-25 | Ladle turret's braking and accident drive arrangement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205200528U true CN205200528U (en) | 2016-05-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520949105.1U Expired - Fee Related CN205200528U (en) | 2015-11-25 | 2015-11-25 | Ladle turret's braking and accident drive arrangement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205200528U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107020370A (en) * | 2017-06-05 | 2017-08-08 | 大连华锐重工集团股份有限公司 | Supermatic ladle long nozzle steerable system |
| CN110722146A (en) * | 2019-10-29 | 2020-01-24 | 宣化钢铁集团有限责任公司 | Independent accident slewing mechanism of ladle slewing table and slewing method thereof |
-
2015
- 2015-11-25 CN CN201520949105.1U patent/CN205200528U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107020370A (en) * | 2017-06-05 | 2017-08-08 | 大连华锐重工集团股份有限公司 | Supermatic ladle long nozzle steerable system |
| CN110722146A (en) * | 2019-10-29 | 2020-01-24 | 宣化钢铁集团有限责任公司 | Independent accident slewing mechanism of ladle slewing table and slewing method thereof |
| CN110722146B (en) * | 2019-10-29 | 2023-07-25 | 宣化钢铁集团有限责任公司 | Independent steel ladle turret accident slewing mechanism and slewing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160504 Termination date: 20171125 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |