CN105508326B - Hydraulic transmission system of centrifugal line coating machine - Google Patents
Hydraulic transmission system of centrifugal line coating machine Download PDFInfo
- Publication number
- CN105508326B CN105508326B CN201610032097.3A CN201610032097A CN105508326B CN 105508326 B CN105508326 B CN 105508326B CN 201610032097 A CN201610032097 A CN 201610032097A CN 105508326 B CN105508326 B CN 105508326B
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- Prior art keywords
- valve
- oil
- hydraulic motor
- pipeline
- transmission system
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/08—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor
- F15B11/10—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor in which the servomotor position is a function of the pressure also pressure regulators as operating means for such systems, the device itself may be a position indicating system
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/08—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B1/00—Producing shaped prefabricated articles from the material
- B28B1/30—Producing shaped prefabricated articles from the material by applying the material on to a core or other moulding surface to form a layer thereon
- B28B1/32—Producing shaped prefabricated articles from the material by applying the material on to a core or other moulding surface to form a layer thereon by projecting, e.g. spraying
- B28B1/34—Producing shaped prefabricated articles from the material by applying the material on to a core or other moulding surface to form a layer thereon by projecting, e.g. spraying by centrifugal force
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
- F15B13/0401—Valve members; Fluid interconnections therefor
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Fluid-Pressure Circuits (AREA)
- Control Of Fluid Gearings (AREA)
Abstract
The invention discloses a hydraulic transmission system of a centrifugal line coating machine. The hydraulic transmission system comprises a hydraulic pump, a hydraulic motor, a reversing vale and a sequence valve. The sequence valve is arranged on a pipeline which is connected with two working ports of the reversing valve in parallel; a follow current one-way valve is connected with the hydraulic motor in parallel on an oil inlet pipeline and an oil outlet pipeline of the hydraulic motor, and the follow current direction is from an oil outlet to an oil inlet of the hydraulic motor. By adopting the hydraulic transmission system, a protection one-way valve is connected with the inlet end and the outlet end of the hydraulic motor in parallel, and the protection one-way valve does not act at ordinary times and plays a protection role only when an original system is failed, so that the protection one-way valve not only can ensure the technological requirements when the system normally works, but also can prevent the motor locked-rotor damage condition caused by follow current interruption when the oil liquid cleanliness is lowered or a control oil way is blocked by foreign matter such as seal ring aging damage particles; accordingly, it is guaranteed that the motor cannot generate locked-rotor damage, and the service life of the motor is prolonged.
Description
The application is the divisional application of following patent application：
Original bill application title：A kind of Centrifugal smearing machine Hydraulic Power Transmission System
Original bill application number：201410624486.6
The original bill applying date：On November 7th, 2014
Technical field
The invention belongs to the technical field of ductile iron pipe production equipment, is related to the Centrifugal smearing machine of spheroidal graphite cast-iron, more
Say, the present invention relates to a kind of Centrifugal smearing machine Hydraulic Power Transmission System body.
Background technology
The Centrifugal smearing machine of the ductile iron pipe industry of prior art runs up and brakes and frequently cut during coated lining
Change, produce problems with (referring to Fig. 1)：
1st, cast tube industry small dimension Centrifugal smearing machine is driven using hydraulic motor 1, and rhythm is fast, is started, is stopped frequently so that
Hydraulic motor 1 is in for a long time startup and on-position；
2nd, in hydraulic control circuit, when hydraulic motor 1 is in on-position, system design is entered for a sequence valve 4
Row afterflow, according to technological requirement and hydraulic motor performance, is adjusted.
As shown in figure 1, when 1DT obtains electric, pressure oil Jing reversing solenoid valves 2, flow speed control valve 3, the suitable direction of arrow are hydraulic pressure horse
Power is provided up to 1.
When 1DT dead electricity, crude oil road is cut off, and hydraulic motor continues rotation in the presence of inertia so that former oil-out
Produce high pressure.Its pressure flow direction is Jing check valves 8, sequence valve 4, flow speed control valve 3, supplements fluid to hydraulic motor 1 in the direction of arrows,
Carry out afterflow.
Due to a variety of causes, such as hydraulic motor 1 is not with the improper, fluid that is mechanically connected that concentric deviation is big, sequence valve 4 is adjusted
The factors such as cleaning, cause hydraulic motor well damage.
The content of the invention
The present invention provides a kind of Centrifugal smearing machine Hydraulic Power Transmission System, its objective is to avoid hydraulic motor from damaging, and extends it
Life-span.
To achieve these goals, the technical scheme taken of the present invention is：
The Centrifugal smearing machine Hydraulic Power Transmission System of the present invention, including hydraulic pump, hydraulic motor, reversal valve and sequence valve, institute
The sequence valve stated is arranged on the pipeline in parallel with the two of reversal valve actuator ports；In the oil-in pipe of described hydraulic motor
On road and oil-out pipeline, afterflow check valve is arranged in parallel with described hydraulic motor, its afterflow direction is from hydraulic motor
Oil-out is to oil-in.
On the working connection of described reversal valve to hydraulic motor oil-in, flow speed control valve is set；Described flow speed control valve enters
Hydraulic fluid port is located between the pipeline of sequence valve and the pipeline of afterflow check valve.
On the oil circuit of described hydraulic pump to reversal valve, overflow valve is set.
On the oil circuit of described overflow valve to hydraulic pump, accumulator is set.
Described reversal valve is single two-position four-way solenoid valve, i.e.,：The working position end of electromagnetic valve arranges electric magnet,
Electromagnetic valve reset end arranges back-moving spring.
On the working connection of described hydraulic motor oil-out to reversal valve, check valve is set, positioned at described afterflow list
To between the pipeline and sequence valve pipeline of valve；Described check valve conducting direction is from hydraulic motor oil-out to reversal valve.
The back pressure of described afterflow check valve is 2.5～3MPa.
The present invention adopts above-mentioned technical proposal, and at the import and export two ends of hydraulic motor protection check valve is connected in parallel, protection
Check valve at ordinary times and is failure to actuate, and is played a protective role when only original system breaks down so as to both can guarantee that system worked well
When technological requirement, again can oil cleanness reduce or sealing ring aged deterioration the foreign matters from being blocked oil circuit control such as granule when,
Prevent afterflow interruption, cause the situation of motor lock-rotor damage, damage so as to ensure that motor will not produce stall, extend it and use the longevity
Life.
Description of the drawings
Content shown in accompanying drawing and the labelling in figure are as follows：
Fig. 1 is the structural representation described in background technology；
Fig. 2 is the structural representation of the present invention.
It is labeled as in figure：
1st, hydraulic motor, 2, reversal valve, 3, flow speed control valve, 4, sequence valve, 5, overflow valve, 6, accumulator, 7, afterflow check valve,
8th, check valve.
Specific embodiment
Below against accompanying drawing, by the description to embodiment, further details of is made to the specific embodiment of the present invention
Illustrate there is more complete, accurate and deep reason to inventive concept of the invention, technical scheme to help those skilled in the art
Solution.
As shown in Figure 2 structure, is the Centrifugal smearing machine Hydraulic Power Transmission System of the present invention, including hydraulic pump, hydraulic motor 1,
Reversal valve 2 and sequence valve 4, described sequence valve 4 is arranged on the pipeline in parallel with two actuator ports of reversal valve 2.This
Bright claimed technical scheme is related to hydraulic motor running protection, prevents motor from damaging and increases the service life.
In order to solve the problems, such as prior art and overcome its defect, realization avoids hydraulic motor from damaging, and extends its longevity
The goal of the invention of life, the technical scheme taken of the present invention is：
As shown in Fig. 2 the Centrifugal smearing machine Hydraulic Power Transmission System of the present invention, in the oil-in pipe of described hydraulic motor 1
On road and oil-out pipeline, afterflow check valve 7 is arranged in parallel with described hydraulic motor 1, its afterflow direction is from hydraulic motor 1
Oil-out to oil-in.
When 1DT is obtained it is electric when, pressure oil Jing reversing solenoid valves, flow control valve, provide power for motor along the direction of arrow.
When Fig. 2 solenoid directional control valve 1DT dead electricity, motor enters braking freewheeling state, because fluid is unholiness, close in system
Envelope, the reason such as pipeline is aging so that filthy blocking decompression sequence valve oil circuit control in system, cause order air relief valve to close, horse
Up to without the damage of afterflow stall.
Even there occurs that case above sequence valve can not play a protective role, hydraulic motor 1 can pass through afterflow list
Afterflow is carried out to valve 7 to be protected.Two ends are imported and exported in hydraulic motor 1 and connect the check valve, that is, can guarantee that technological requirement, again may be used
When oil cleanness is reduced or has the particulate component blocking oil circuit control of similar sealing ring aged deterioration, in not resulting in afterflow
Disconnected situation, damages so as to ensure that motor will not produce stall.Can ensure that Centrifugal smearing machine equipment runs completely, and protect motor
Not accidental damage, improves service life.
On the working connection of described reversal valve 2 to the oil-in of hydraulic motor 1, flow speed control valve 3 is set；Described flow speed control valve 3
Oil-in be located at sequence valve 4 pipeline and the pipeline of afterflow check valve 7 between.
Flow speed control valve 3 is used for adjusting the rotating speed of hydraulic motor 1.
On the oil circuit of described hydraulic pump to reversal valve 2, overflow valve 5 is set.
Overflow valve 5 realizes the overflow voltage stabilizing of system.After it is set as certain pressure value, system once exceedes, will
Protected by overflow.
On the oil circuit of described overflow valve 5 to hydraulic pump, accumulator 6 is set.
Accumulator 6 keeps the pressure of system in system fuel cut-off in short-term.
Described reversal valve 2 is single two-position four-way solenoid valve, i.e.,：The working position end of electromagnetic valve arranges electromagnetism
Ferrum, electromagnetic valve reset end arranges back-moving spring.
On the working connection of the described oil-out of hydraulic motor 1 to reversal valve 2, check valve 8 is set, positioned at described afterflow
Between the pipeline and the pipeline of sequence valve 4 of check valve 7；The described conducting direction of check valve 8 is from the oil-out of hydraulic motor 1 to reversal valve
2。
The effect of check valve 8 is：Prevent hydraulic motor 1 from instant reversal occurring during the action of reversal valve 2.
The back pressure of described afterflow check valve 7 is 2.5～3MPa.
Back pressure when ensureing that motor is braked, meets the braking time of technological requirement, extends motor service life.Check valve is carried on the back
Pressure value is selected, and higher than systematic order air relief valve adjusted value 0.5MP (original system check valve back pressure value) is added.So allow for protection single
At ordinary times and it is failure to actuate to valve, plays a protective role when only original system breaks down, reaches and do not destroy original system normal work again
The effect of protection motor can be reached.
The present invention is exemplarily described above in conjunction with accompanying drawing, it is clear that the present invention is implemented and do not receive aforesaid way
Restriction, as long as employing the improvement of various unsubstantialities that method of the present invention design and technical scheme are carried out, or without changing
Enter and the design of the present invention and technical scheme are directly applied to into other occasions, within protection scope of the present invention.
Claims (9)
1. a kind of Centrifugal smearing machine Hydraulic Power Transmission System, including hydraulic pump, hydraulic motor (1), reversal valve (2) and sequence valve (4),
Described sequence valve (4) is arranged on the pipeline between the in-line of hydraulic motor (1) and return line；
It is characterized in that：
On the oil-in pipeline and oil-out pipeline of described hydraulic motor (1), it is arranged in parallel with described hydraulic motor (1)
Afterflow check valve (7), its afterflow direction is from the oil-out of hydraulic motor (1) to oil-in；
On the working connection of described reversal valve (2) to hydraulic motor (1) oil-in, flow speed control valve (3) is set；Described flow speed control valve
(3) oil-in is located on the pipeline between the oil-out of sequence valve (4) and the oil-out of afterflow check valve (7)；
On the oil circuit of described hydraulic pump to reversal valve (2), overflow valve (5) is set.
2. according to the Centrifugal smearing machine Hydraulic Power Transmission System described in claim 1, it is characterised in that：Described afterflow check valve
(7) back pressure is 2.5～3MPa.
3. according to the Centrifugal smearing machine Hydraulic Power Transmission System described in claim 1, it is characterised in that：In described overflow valve (5)
To the oil circuit of hydraulic pump, accumulator (6) is set.
4. according to the Centrifugal smearing machine Hydraulic Power Transmission System described in claim 3, it is characterised in that：Described reversal valve (2) is
Single two-position four-way solenoid valve, i.e.,：The working position end of electromagnetic valve arranges electric magnet, and electromagnetic valve reset end arranges and resets
Spring.
5. according to the Centrifugal smearing machine Hydraulic Power Transmission System described in claim 4, it is characterised in that：Described afterflow check valve
(7) back pressure is 2.5～3MPa.
6. a kind of Centrifugal smearing machine Hydraulic Power Transmission System, including hydraulic pump, hydraulic motor (1), reversal valve (2) and sequence valve (4),
Described sequence valve (4) is arranged on the pipeline between the in-line of hydraulic motor (1) and return line；
It is characterized in that：
On the oil-in pipeline and oil-out pipeline of described hydraulic motor (1), it is arranged in parallel with described hydraulic motor (1)
Afterflow check valve (7), its afterflow direction is from the oil-out of hydraulic motor (1) to oil-in；
On the working connection of described reversal valve (2) to hydraulic motor (1) oil-in, flow speed control valve (3) is set；Described flow speed control valve
(3) oil-in is located on the pipeline between the oil-out of sequence valve (4) and the oil-out of afterflow check valve (7)；
Described reversal valve (2) is single two-position four-way solenoid valve, i.e.,：The working position end of electromagnetic valve arranges electric magnet,
Electromagnetic valve reset end arranges back-moving spring.
7. according to the Centrifugal smearing machine Hydraulic Power Transmission System described in claim 6, it is characterised in that：Described afterflow check valve
(7) back pressure is 2.5～3MPa.
8. according to the Centrifugal smearing machine Hydraulic Power Transmission System described in claim 6, it is characterised in that：In described hydraulic motor
(1) on the working connection of oil-out to reversal valve (2), arrange check valve (8), positioned at described afterflow check valve (7) pipeline with
Between sequence valve (4) pipeline；Described check valve (8) conducting direction is from hydraulic motor (1) oil-out to reversal valve (2).
9. according to the Centrifugal smearing machine Hydraulic Power Transmission System described in claim 8, it is characterised in that：Described afterflow check valve
(7) back pressure is 2.5～3MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610032097.3A CN105508326B (en) | 2014-11-07 | 2014-11-07 | Hydraulic transmission system of centrifugal line coating machine |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410624486.6A CN104358723B (en) | 2014-11-07 | 2014-11-07 | A kind of Centrifugal smearing machine Hydraulic Power Transmission System |
| CN201610032097.3A CN105508326B (en) | 2014-11-07 | 2014-11-07 | Hydraulic transmission system of centrifugal line coating machine |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410624486.6A Division CN104358723B (en) | 2014-11-07 | 2014-11-07 | A kind of Centrifugal smearing machine Hydraulic Power Transmission System |
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| Publication Number | Publication Date |
|---|---|
| CN105508326A CN105508326A (en) | 2016-04-20 |
| CN105508326B true CN105508326B (en) | 2017-05-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610019697.6A Active CN105465069B (en) | 2014-11-07 | 2014-11-07 | Centrifugal smearing machine Hydraulic Power Transmission System |
| CN201610032097.3A Active CN105508326B (en) | 2014-11-07 | 2014-11-07 | Hydraulic transmission system of centrifugal line coating machine |
| CN201410624486.6A Active CN104358723B (en) | 2014-11-07 | 2014-11-07 | A kind of Centrifugal smearing machine Hydraulic Power Transmission System |
| CN201610032079.5A Active CN105485076B (en) | 2014-11-07 | 2014-11-07 | A kind of Centrifugal smearing machine Hydraulic Power Transmission System |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610019697.6A Active CN105465069B (en) | 2014-11-07 | 2014-11-07 | Centrifugal smearing machine Hydraulic Power Transmission System |
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| CN201410624486.6A Active CN104358723B (en) | 2014-11-07 | 2014-11-07 | A kind of Centrifugal smearing machine Hydraulic Power Transmission System |
| CN201610032079.5A Active CN105485076B (en) | 2014-11-07 | 2014-11-07 | A kind of Centrifugal smearing machine Hydraulic Power Transmission System |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106762878B (en) * | 2016-12-19 | 2018-07-31 | 武汉船用机械有限责任公司 | A kind of hydraulic control system for seaborne supply mechanism experimental rig |
| CN106838192B (en) * | 2017-02-28 | 2019-02-15 | 扬州大学 | Screw pump-motor speed varying bending moment system |
| CN109611391A (en) * | 2018-12-10 | 2019-04-12 | 湖南五新隧道智能装备股份有限公司 | A kind of concrete spraying vehicle spray head swipes motor governing system |
| CN110284797A (en) * | 2019-06-14 | 2019-09-27 | 庆安集团有限公司 | A kind of low discharge task hatch door actuating system and control method |
| CN110265248A (en) * | 2019-07-18 | 2019-09-20 | 科都电气有限公司 | The commutation brake gear and direct current electric power tools switch of direct current electric power tools switch |
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| GB1390917A (en) * | 1971-07-09 | 1975-04-16 | Lucas Industries Ltd | Hydraulic transmission system |
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| CN204284039U (en) * | 2014-11-07 | 2015-04-22 | 芜湖新兴铸管有限责任公司 | A kind of Centrifugal smearing machine Hydraulic Power Transmission System |
-
2014
- 2014-11-07 CN CN201610019697.6A patent/CN105465069B/en active Active
- 2014-11-07 CN CN201610032097.3A patent/CN105508326B/en active Active
- 2014-11-07 CN CN201410624486.6A patent/CN104358723B/en active Active
- 2014-11-07 CN CN201610032079.5A patent/CN105485076B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN105485076A (en) | 2016-04-13 |
| CN105465069B (en) | 2018-05-25 |
| CN104358723B (en) | 2016-03-16 |
| CN105465069A (en) | 2016-04-06 |
| CN105485076B (en) | 2017-04-05 |
| CN105508326A (en) | 2016-04-20 |
| CN104358723A (en) | 2015-02-18 |
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