CN203512795U - Bucket-wheel stacker reclaimer hydraulic half-lying tripper car with head portion prevented from moving downwards - Google Patents
Bucket-wheel stacker reclaimer hydraulic half-lying tripper car with head portion prevented from moving downwards Download PDFInfo
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- CN203512795U CN203512795U CN201320588474.3U CN201320588474U CN203512795U CN 203512795 U CN203512795 U CN 203512795U CN 201320588474 U CN201320588474 U CN 201320588474U CN 203512795 U CN203512795 U CN 203512795U
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Abstract
The utility model discloses a bucket-wheel stacker reclaimer hydraulic half-lying tripper car with the head portion prevented from moving downwards and belongs to the field of working machines. The bucket-wheel stacker reclaimer hydraulic half-lying tripper car comprises a fixed machine frame, a variable-amplitude machine frame, a variable-amplitude hydraulic cylinder and an oil supply hydraulic system for controlling the hydraulic cylinder, wherein the hydraulic system comprises a hydraulic pump, a one-way valve connected with the hydraulic pump, an overflow valve connected with the one-way valve and a magnetic exchange valve. The bucket-wheel stacker reclaimer hydraulic half-lying tripper car is characterized in that the median function of the magnetic exchange valve is changed to be of a Y type from an M type, the output end of the magnetic exchange valve is connected with two hydraulic control one-way valves which are connected in parallel, the two hydraulic control one-way valves are connected with one-way throttle valves respectively, the output ends of the two one-way throttle valves are connected with a rod cavity and a rodless cavity of the hydraulic cylinder respectively, and an energy accumulator oil supplement branch which is composed of a one-way valve, an overflow valve, an energy accumulator, a pressure relay, a magnetic exchange valve and a throttle valve is additionally arranged between a main oil path at the output end of a pump opening protection one-way valve and an oil path between the one-way throttle valves and the rodless cavity of the hydraulic cylinder. The bucket-wheel stacker reclaimer hydraulic half-lying tripper car has the advantages that the pressure maintaining performance of the system is well guaranteed, and the head portion of the tripper car is effectively prevented from moving downwards abnormally.
Description
Technical field
The utility model belongs to conveying machinery, the hydraulic pressure that the is specifically related to boom type bucket wheel stacker trailer of partly lying prone.
Background technology
As shown in Figure 1 comprise the bucket-wheel mechanism 1 that completes feeding function from stock ground, apparatus-form support frame upper metal structures 2, realize upper metal structures and functional entity mounted thereto and realize the main frame luffing mechanism 3 that stock ground short transverse changes, the traveling gear 4 that complete machine can be moved along track stock ground length direction, and realize upper metal structures functional entity mounted thereto and realize the swing type mechanism 5 that stock ground Width moves, the trailer 6 being connected with main frame input and output material end and realize the arm-type stacker-reclaimer (hereinafter to be referred as bucket wheel machine) that material transfer function cantilever belt conveyor and subsidiary thereof etc. form, as a kind of continuous, efficient bulk material handling conveying equipment, be widely used in large-size thermal power plant, industrial and mining enterprises and harbour loose unpacked material bedding plant.
When adapting to the differing heights windrow in upper metal structures and arm belt machine operation trailer join with cantilever belt conveyor top transhipment hopper, during feeding trailer head nutation with transport hopper bottom and be connected, trailer need change by face upward, bow (luffing) height of its head.
Shown in Fig. 2, comprise fixed frame 6a, and the luffing frame 6b that is hinged of fixed frame, front leg strut 6c, the rear support leg 6d of frames, the luffing hydraulic actuating cylinder 6y between the bottom girder 6e of fixed supporting leg, the road wheel 6f under bottom girder, front leg strut and luffing frame and the hydraulic pressure of controlling the fuel-feed system of the hydraulic actuating cylinder trailer of partly lying prone, it is modal trailer form in hydraulic luffing trailer, because it is simple in structure, easy to maintenance, stock ground degree of utilization is high.But in use more often occur that trailer head sinks, be commonly called as " turning around " phenomenon, sink when serious, trailer luffing frame can directly be damaged the parts such as coupled transhipment hopper by pressure, and the equipment that affects normally moves.Analyzing its reason is that hydraulic pressure is partly lain prone trailer when the state of facing upward piles material level, and owing to only there being hydraulic actuating cylinder to support, without other mechanical support, the pressure maintaining performance of hydraulic efficiency pressure system determines the continuous stability of luffing shelf position.
The existing hydraulic pressure trailer variable amplitude hydraulic system of partly lying prone is the structure shown in Fig. 3, the by pass valve 9 that comprises the check valve 8 of Hydraulic Pump 7, connecting fluid press pump mouth, connects check valve mouth and solenoid directional control valve 10, two the one-way throttle valve 11-1 arranged side by side and the 11-2 that are connected solenoid directional control valve mouth, be connected the hydraulic control one-way valve 12 of one of them one-way throttle valve mouth, the rodless cavity of the output termination hydraulic actuating cylinder 6y of hydraulic control one-way valve, the output termination hydraulic actuating cylinder of another one-way throttle valve be 6y's and rod chamber.
The reason that existing hydraulic efficiency pressure system pressure maintaining performance can not meet the demands is: 1, the pressurize of hydraulic actuating cylinder is mainly by hydraulic control one-way valve 12, hydraulic control one-way valve is arranged on the rising in-line of hydraulic actuating cylinder, when hydraulic cylinder piston rod stretches out, pressurize guarantees that trailer is in the mode of operation of facing upward, but it can only solve the locking of hydraulic actuating cylinder rodless cavity one side, ignored the interior leakage at hydraulic cylinder piston place, existence due to hydraulic cylinder piston both sides pressure reduction, cause fluid by letting out in piston, and in oil return line, remove solenoid directional control valve 10 Median Functions without other pressurize valve members, and solenoid directional control valve guiding valve is machine-processed, interior amount of leakage is large, so its M type Median Function locking effect is poor, cause whole system pressure maintaining performance to be affected.2, hydraulic circuit selects mal to cause pressurize valve member cisco unity malfunction.Trailer variable amplitude hydraulic system load inertia is larger.When change-over valve 10 is transformed into meta from control position, M type Median Function is closed the oil circuit between hydraulic actuating cylinder and change-over valve, within a period of time, still keep certain pressure, part 12 hydraulic control one-way valves can not thoroughly be closed, only in change-over valve, let out the pressure decreased that makes in this section of oil circuit to a certain extent after, hydraulic control one-way valve is just closed.Cause hydraulic actuating cylinder to occur accurately locating and locking.3, oil temperature is obvious on the impact of hydraulic efficiency pressure system pressure maintaining performance.During hydraulic work system, between hydraulic actuating cylinder and hydraulic control one-way valve, oil viscosity varies with temperature obviously, belongs to outdoor work especially for bucket wheel machine equipment, and pressurize wants seeking time long, or even several days time, the regional pressure maintaining performance changing greatly for day and night temperature is subject to the impact of oil temperature obvious.
Summary of the invention
The purpose of this utility model is to provide bucket-wheel stacker reclaimer hydraulic pressure that a kind of anti-head the sinks trailer of partly lying prone, and overcomes the existing trailer of partly lying prone and often occurs at the windrow job position that continues to raise up the phenomenon that luffing frame is sunk.
The utility model comprise fixed frame, and bottom girder, the road wheel under bottom girder, front leg strut and the luffing frame of the front leg strut of the luffing frame that is hinged of fixed frame, frames and rear support leg, fixed supporting leg between two luffing hydraulic actuating cylinders, control the fuel feeding hydraulic efficiency pressure system of hydraulic actuating cylinder; Hydraulic efficiency pressure system wherein comprises the check valve of Hydraulic Pump, connecting fluid press pump mouth, by pass valve and the solenoid directional control valve of connection check valve mouth, the improvement of doing is: the solenoid directional control valve Median Function in hydraulic efficiency pressure system changes Y type into by M type, solenoid directional control valve mouth connects two hydraulic control one-way valves in parallel, two hydraulic control one-way valves connect respectively one-way throttle valve, and the mouth of two one-way throttle valves is rod chamber and the rodless cavity of connecting fluid cylinder pressure respectively; On the working connection of pumping hole protection check valve mouth and one-way throttle valve to increasing an energy storage repairing branch road being formed by check valve, by pass valve, energy storage, pressure relay, solenoid directional control valve, flow regulating valve between the oil circuit of hydraulic actuating cylinder rodless cavity; in energy storage repairing branch road, the annexation of member is: check valve output termination energy storage, pressure relay, by pass valve, solenoid directional control valve; solenoid directional control valve output termination flow regulating valve, the flow regulating valve in repairing branch road connects one-way throttle valve to the oil circuit of hydraulic actuating cylinder rodless cavity.
The utility model improvement part principle of work and beneficial effect be: 1, hydraulic control one-way valve changes two-way into by single channel locking and locks, the interior leakage at energy actv. relieving hydraulic cylinder piston place, hydraulic cylinder piston both sides fluid is revealed and is determined by pressure reduction, after the two-way locking of hydraulic actuating cylinder oil inlet and oil return road, hydraulic actuating cylinder rod chamber also retains certain pressure, by the infiltration of fluid, piston both sides oil pocket pressure can be tending towards substantially equating, thereby effectively reduce the interior discharge of hydraulic actuating cylinder fluid, locking pressurize ability is well improved.2, solenoid directional control valve Median Function changes Y type into by M type, during hydraulic locking cylinder, the control port of hydraulic control one-way valve is directly connected with fuel tank, guarantee the rapid pressure release of oil circuit between hydraulic actuating cylinder and change-over valve, while making to lock, the control plunger of hydraulic control one-way valve is return rapidly, guarantees hydraulic actuating cylinder accurately location and locking.3, the effect of repairing branch road is to eliminate the impact on system pressure maintaining performance when large of working medium oil temperature, viscosity and main equipment fluid amount of leakage.Energy storage has the effect of auxiliary repairing propulsion source, when trailer luffing moves, by Hydraulic Pump to the oil-filled energy storage of energy storage, when reaching relief valve set pressure, by pass valve starts overflow, complete energy storage thermal energy storage process, main pump termination of pumping after luffing completes, energy storage starts to release energy, convert hydraulic energy to earth pressure release, by the flow control of one-way speed-regulating valve, obtain the supplementary fluid that flow velocity is applicable to simultaneously, reduce repairing and impact; Constantly oil cylinder is carried out to fluid and supplement, if system occurs after superpressure in repairing process, control solenoid directional control valve oil circuit control disconnect by electro connecting pressure gauge, delay adjustments continues to start repairing after the time.Pressure relay effect is that system liquid press pump is opened to energy storage oil-filled when branch road pressure is set oil compensation pressure lower than it.Native system is revealed owing to adopting energy storage to supplement fluid as auxiliary power source, actv. has been stopped hydraulic pressure oil viscosity and oil temperature, the impact of cleanliness level on pressure maintaining performance, the pressure maintaining performance of system is well guaranteed, the phenomenon that turns around of effectively avoiding trailer head mal to move down.
Accompanying drawing explanation
Fig. 1 is bucket-wheel stacker reclaimer constructional drawing.
Fig. 2 is the hydraulic pressure trailer constructional drawing of partly lying prone.
Fig. 3 is the existing hydraulic pressure trailer hydraulic scheme of partly lying prone.
Fig. 4 is the hydraulic pressure of the present utility model trailer hydraulic scheme of partly lying prone.
The specific embodiment
Consult Fig. 3, the utility model comprise fixed frame 6a, and the luffing frame 6b that is hinged of fixed frame, front leg strut 6c, the rear support leg 6d of frames, the bottom girder 6e of fixed supporting leg, walking opinion 6f, front leg strut and luffing frame under bottom girder between two luffing hydraulic actuating cylinder 6y-1 and the hydraulic efficiency pressure system of the fuel feeding of 6y-2, control hydraulic actuating cylinder; Hydraulic efficiency pressure system wherein comprises the check valve 8 of Hydraulic Pump 7, connecting fluid press pump mouth, by pass valve 9 and the solenoid directional control valve 10 of connection check valve mouth, and the improvement of doing is: solenoid directional control valve Median Function changes Y type into by M type.At solenoid directional control valve mouth, connect two hydraulic control one-way valve 12-1,12-2 in parallel, two hydraulic control one-way valves connect respectively one-way throttle valve 11-1 and 11-2, and the mouth of two one-way throttle valves is rod chamber and the rodless cavity of connecting fluid cylinder pressure respectively.On the working connection of pumping hole protection check valve mouth and one-way throttle valve to increasing by one between the oil circuit of hydraulic actuating cylinder rodless cavity by check valve 13, by pass valve 14, energy storage 15, pressure relay 16, solenoid directional control valve 17, the energy storage repairing branch road that flow regulating valve 18 forms, in energy storage repairing branch road, the annexation of member is: check valve 13 output termination energy storages 15, pressure relay 16, by pass valve 14, solenoid directional control valve 17, the output termination flow regulating valve 18 of solenoid directional control valve 17, flow regulating valve 18 in repairing branch road meets one-way throttle valve 11-1 to the oil circuit of hydraulic actuating cylinder 6y-1 and 6y-2 rodless cavity.
Claims (1)
1. the bucket-wheel stacker reclaimer hydraulic pressure that an anti-head the sinks trailer of partly lying prone, comprise fixed frame, the luffing frame being hinged with fixed frame, the front leg strut of frames and rear support leg, the bottom girder of fixed supporting leg, road wheel under bottom girder, two luffing hydraulic actuating cylinders between front leg strut and luffing frame, control the fuel feeding hydraulic efficiency pressure system of hydraulic actuating cylinder, hydraulic efficiency pressure system wherein comprises Hydraulic Pump, the check valve of connecting fluid press pump mouth, the by pass valve and the solenoid directional control valve that connect check valve mouth, it is characterized in that: the solenoid directional control valve Median Function in hydraulic efficiency pressure system changes Y type into by M type, solenoid directional control valve mouth connects two hydraulic control one-way valves in parallel, two hydraulic control one-way valves connect respectively one-way throttle valve, the mouth of two one-way throttle valves is rod chamber and the rodless cavity of connecting fluid cylinder pressure respectively, on the working connection of pumping hole protection check valve mouth and one-way throttle valve to increasing an energy storage repairing branch road being formed by check valve, by pass valve, energy storage, pressure relay, solenoid directional control valve, flow regulating valve between the oil circuit of hydraulic actuating cylinder rodless cavity, in energy storage repairing branch road, the annexation of member is: check valve output termination energy storage, pressure relay, by pass valve, solenoid directional control valve, solenoid directional control valve output termination flow regulating valve, the flow regulating valve in repairing branch road connects one-way throttle valve to the oil circuit of hydraulic actuating cylinder rodless cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320588474.3U CN203512795U (en) | 2013-09-24 | 2013-09-24 | Bucket-wheel stacker reclaimer hydraulic half-lying tripper car with head portion prevented from moving downwards |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320588474.3U CN203512795U (en) | 2013-09-24 | 2013-09-24 | Bucket-wheel stacker reclaimer hydraulic half-lying tripper car with head portion prevented from moving downwards |
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| CN203512795U true CN203512795U (en) | 2014-04-02 |
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| CN201320588474.3U Expired - Lifetime CN203512795U (en) | 2013-09-24 | 2013-09-24 | Bucket-wheel stacker reclaimer hydraulic half-lying tripper car with head portion prevented from moving downwards |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103482372A (en) * | 2013-09-24 | 2014-01-01 | 长春发电设备总厂 | Hydraulic semi-luffing tripper car of head-sinking-preventing bucket-wheel stacker-reclaimer |
-
2013
- 2013-09-24 CN CN201320588474.3U patent/CN203512795U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103482372A (en) * | 2013-09-24 | 2014-01-01 | 长春发电设备总厂 | Hydraulic semi-luffing tripper car of head-sinking-preventing bucket-wheel stacker-reclaimer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: Two district Huairenlu 130000 Jilin province Changchun No. 1 Patentee after: POWERCHINA CHANGCHUN GENERATING EQUIPMENT Group Ltd. Address before: Two district Huairenlu 130031 Jilin province Changchun No. 1 Patentee before: Changchun Power Generation Equipment Plant |
|
| CP03 | Change of name, title or address | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140402 |
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| CX01 | Expiry of patent term |