CN203420959U - Loaded car shunting locomotive big-arm drive hydraulic system - Google Patents
Loaded car shunting locomotive big-arm drive hydraulic system Download PDFInfo
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- CN203420959U CN203420959U CN201320506075.8U CN201320506075U CN203420959U CN 203420959 U CN203420959 U CN 203420959U CN 201320506075 U CN201320506075 U CN 201320506075U CN 203420959 U CN203420959 U CN 203420959U
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- oil cylinder
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- manifold block
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Abstract
A loaded car shunting locomotive big-arm drive hydraulic system comprises a big-arm swing oil cylinder, an oil cylinder pressure regulation manifold block, a work oil tank, an oil pump and an oil pump pressure regulation manifold block. A double-rack oil cylinder is adopted in the big-arm swing oil cylinder, and a double-vane pump is adopted in the oil pump. The big-arm swing oil cylinder is connected with the oil cylinder pressure regulation manifold block through two oil paths, and the oil cylinder pressure regulation manifold block is respectively connected with a front pump and a back pump of the double-vane pump through the two oil paths. The two oil paths are respectively provided with a control valve set, pressure oil ports of the control valve sets are connected with the oil pump, and oil return ports of the control valve sets are connected with the work oil tank. According to the loaded car shunting locomotive big-arm drive hydraulic system, the safety performance of a whole coal unloading system is improved, labor intensity and the amount of labor of maintainers are greatly reduced, high maintenance cost is reduced, and good economic benefits and safety benefits can be achieved.
Description
Technical field
The utility model relates to the large arm drive hydraulic system principle of a kind of heavy railway wagon.
Background technique
Heavy railway wagon is one of supplementary equipment in tipper unloading line complete sets of equipment, the multiple truck that is used for pulling over, and it is located on the position of regulation, so that wagon tipper completes overturning operation.But in use, find that wagon tipper drives UBJZD160-145 ° of (excellent Rui Nasi) foot-rest type axle output monodentate bar oscillating oil cylinder of large arm, frequently occur that inboard wall of cylinder liner is longitudinally pulled, gear rack serious wear, cause the interior leakage of oil cylinder and leak outside, the normal safe operation of the equipment that affects.Hydraulic system is owing to there is no overflow-valve device, large arm lifting hydraulic valve bank in original system hydraulic station adopts Sandwich plate valve structure, each valve group adopts M8 hexagon socket head cap screw fastening, under and impact that this bolt clipping forcee is inadequate aging at Sealing, hydraulic station valve station leaks outside quite serious, and due to for a long time at superpressure (system pressure 14MPa, former design pressure 10MPa) in situation, move, the frequent explosion of oil pipe, large arm puts in place not steady after stopping in rise and fall, have certain impact or swing.After driving oil cylinder with gear racks to damage, will cause a whole set of car dumper system to unload, when especially longer in standby redundancy procurement cycle, will cause a set of car dumper system to paralyse for a long time, directly affect the car of normally unloading at enterprise station, affect the normal coal supply of unit and increase vehicle time delay expense.
Model utility content
The purpose of this utility model be to overcome the deficiencies in the prior art and provide a kind of simple in structure, prevent oil pipe burst, improve oil cylinder with gear racks working life, reduce the large arm drive hydraulic system principle of heavy railway wagon of fault power time.
To achieve these goals, the technological scheme that the utility model adopts is:
The large arm drive hydraulic system principle of a kind of heavy railway wagon, comprise large arm swing oil cylinder, oil cylinder pressure regulation manifold block, operating oil tank, oil pump and oil pump pressure regulation manifold block, described large arm swing oil cylinder adopts double rack oil cylinder, described oil pump adopts pair vane pump, described large arm swing oil cylinder is connected with oil cylinder pressure regulation manifold block by two-way oil circuit, described oil cylinder pressure regulation manifold block is connected with rear pump with the front pump of pair vane pump respectively by two-way oil circuit again, on described two-way oil circuit, be separately installed with control valve group, the pressure hydraulic fluid port of described control valve group is connected with described oil pump, the return opening of described control valve group is connected with operating oil tank.
On two oil circuits in described oil cylinder pressure regulation manifold block, be connected with overflow relief valve.
On described fuel tank, forced air cooler is installed.
Owing to adopting such scheme, the utlity model has following advantage:
(1) large arm driving oscillating oil cylinder is double rack oil cylinder, by monodentate bar, make double rack into, and add overflow relief valve in master cylinder pressure regulation manifold block, thereby make hydraulic system working pressure can be controlled in 7-8MPa, meet former design pressure 10MPa, thereby reduce the Leakages such as oil pipe burst, improve oil cylinder with gear racks working life.
(2) the utility model by increasing by two groups of control valve groups between master cylinder pressure regulation manifold block and pressure hydraulic fluid port, described two groups of control valve groups are connected with two pumps of pair vane pump respectively, the motor of pair vane pump adopts the y series motor of the 18.5KW of Dalian Electric Machine Factory, meeting required hydraulic fluid flow rate increases and motor quick acting traffic demand, thereby the impact of hydraulic system while having reduced to stop, while making large arm drop to horizontal position by vertical position, be divided into two-stage speed, one step velocity is quick forward velocity, the speed that is started to advance by vertical position, two step velocitys are forward velocity at a slow speed, when car pulling arm soon arrives vertical and horizontal final position, by position detecting switch feedback signal, by being kept to fast at a slow speed, until car pulling arm stops, can effectively reduce the impact of car pulling arm cut when advancing fast like this.
(4) for avoiding fuel tank temperature rise higher, therefore on fuel tank, increase forced air cooler, reduce oil temperature, assurance system is normal.
In sum, this device has improved the Safety performance of whole unloading coal system, significantly reduces maintainer's labor intensity and the amount of labour, saves the high cost of overhaul, has good economic benefit and safety benefit.
Accompanying drawing explanation
Fig. 1 is hydraulic schematic diagram of the present utility model;
Embodiment
Below in conjunction with accompanying drawing, further describe the embodiment of this patent.
With reference to Fig. 1, the large arm drive hydraulic system principle of a kind of heavy railway wagon, comprise large arm swing oil cylinder 3, oil cylinder pressure regulation manifold block 4, operating oil tank 8, oil pump 1 and oil pump pressure regulation manifold block 2, described large arm swing oil cylinder adopts double rack oil cylinder 3, double rack oil cylinder 3 is the power type BOSCH-REXROTH brand A series product double rack oil cylinder of remodeling, and cylinder pedestal is changed into horizontal, cylinder diameter is 160mm, described oil pump 1 adopts pair vane pump, and the motor of pair vane pump adopts the y series motor of the 18.5KW of Dalian Electric Machine Factory, B35 mounting type, described large arm swing oil cylinder 3 is connected with oil cylinder pressure regulation manifold block 4 by two-way oil circuit, oil cylinder pressure regulation manifold block 4 comprises Pilot operated check valve 42 and overflow relief valve 41, described Pilot operated check valve 42 is connected with control valve group, described overflow relief valve 41 connects the oil circuit between return opening and large arm swing oil cylinder 3 and Pilot operated check valve 42, described control valve group comprises the first control valve group 5 and the second control valve group 6, the pressure hydraulic fluid port of the first control valve group 5 and the second control valve group 6 is connected with rear pump with the front pump of pair vane pump 1 respectively by oil pump pressure regulation manifold block 2, the return opening of the first control valve group 5 and the second control valve group 6 is connected with operating oil tank, on the return tube of described fuel tank, forced air cooler is installed.
Claims (3)
1. the large arm drive hydraulic system principle of heavy railway wagon, comprise large arm swing oil cylinder, oil cylinder pressure regulation manifold block, operating oil tank, oil pump and oil pump pressure regulation manifold block, it is characterized in that, described large arm swing oil cylinder adopts double rack oil cylinder, described oil pump adopts pair vane pump, described large arm swing oil cylinder is connected with oil cylinder pressure regulation manifold block by two-way oil circuit, described oil cylinder pressure regulation manifold block is connected with rear pump with the front pump of pair vane pump respectively by two-way oil circuit again, on described two-way oil circuit, be separately installed with control valve group, the pressure hydraulic fluid port of described control valve group is connected with described oil pump, the return opening of described control valve group is connected with operating oil tank.
2. the large arm drive hydraulic system principle of heavy railway wagon according to claim 1, is characterized in that, on two oil circuits in described oil cylinder pressure regulation manifold block, is connected with overflow relief valve.
3. the large arm drive hydraulic system principle of heavy railway wagon according to claim 1 and 2, is characterized in that, on described fuel tank, forced air cooler is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320506075.8U CN203420959U (en) | 2013-08-19 | 2013-08-19 | Loaded car shunting locomotive big-arm drive hydraulic system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320506075.8U CN203420959U (en) | 2013-08-19 | 2013-08-19 | Loaded car shunting locomotive big-arm drive hydraulic system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203420959U true CN203420959U (en) | 2014-02-05 |
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ID=50020058
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320506075.8U Expired - Fee Related CN203420959U (en) | 2013-08-19 | 2013-08-19 | Loaded car shunting locomotive big-arm drive hydraulic system |
Country Status (1)
| Country | Link |
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| CN (1) | CN203420959U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107237794A (en) * | 2017-07-21 | 2017-10-10 | 青岛九合重工机械有限公司 | A kind of concreting machinery pumping machine tilt cylinder |
-
2013
- 2013-08-19 CN CN201320506075.8U patent/CN203420959U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107237794A (en) * | 2017-07-21 | 2017-10-10 | 青岛九合重工机械有限公司 | A kind of concreting machinery pumping machine tilt cylinder |
| CN107237794B (en) * | 2017-07-21 | 2019-11-08 | 青岛九合重工机械有限公司 | A kind of concreting machinery pumping machine tilt cylinder |
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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: 20140205 Termination date: 20190819 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |