CN105465069A - Hydraulic transmission system of centrifugal coating machine - Google Patents
Hydraulic transmission system of centrifugal coating machine Download PDFInfo
- Publication number
- CN105465069A CN105465069A CN201610019697.6A CN201610019697A CN105465069A CN 105465069 A CN105465069 A CN 105465069A CN 201610019697 A CN201610019697 A CN 201610019697A CN 105465069 A CN105465069 A CN 105465069A
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- Prior art keywords
- valve
- hydraulic motor
- oil
- oil hydraulic
- pipeline
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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
-
- 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
-
- 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 coating machine. The hydraulic transmission system of the centrifugal coating machine comprises a hydraulic pump, a hydraulic motor, a reversing valve and a sequence valve, wherein the sequence valve is arranged on a pipeline which is in parallel connection with two working oil ports of the reversing valve; flow continuing one-way valves which are in parallel connection with the hydraulic motor are arranged on an oil inlet pipeline and an oil outlet pipeline of the hydraulic motor; and the flow continuing direction of the flow continuing one-way valves is from an oil outlet of the hydraulic motor to an oil inlet of the hydraulic motor. By the technical scheme, an inlet end and an outlet end of the hydraulic motor are in parallel connection with protective one-way valves; the protective one-way valves do not act at ordinary times, the protection effect is achieved only when the original system breaks down, technological requirements can be guaranteed when the system works normally, the circumstances that flow continuing is interrupted and a motor is blocked and damaged can also be prevented when cleanliness of oil is reduced or a sealing ring is aged and foreign matters such as damaged particles block a control oil line, so that the motor can be prevented from being blocked and damaged, 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 manufacturing mechanism, relate to the Centrifugal smearing machine of spheroidal graphite cast iron, more particularly, the present invention relates to Centrifugal smearing machine Hydraulic Power Transmission System.
Background technique
The Centrifugal smearing machine of the ductile iron pipe industry of prior art, in coated lining process, runs up and brakes frequent switching, produces following problem (see Fig. 1):
1, cast tube industry small dimension Centrifugal smearing machine uses oil hydraulic motor 1 to drive, and rhythm is fast, starts, stops frequently, make oil hydraulic motor 1 be in startup and braking state for a long time;
2, in hydraulic control circuit, when oil hydraulic motor 1 is in braking state, system is that a sequence valve 4 carries out afterflow, according to technological requirement and oil hydraulic motor performance, regulates.
As shown in Figure 1, when 1DT obtains electric, pressure oil is through reversing solenoid valve 2, series flow control valve 3, provide power along the direction of arrow for oil hydraulic motor 1.
When 1DT dead electricity, crude oil road is cut off, and oil hydraulic motor continues to rotate under the effect of inertia, makes former oil outlet produce high pressure.Its pressure flow, to being through one-way valve 8, sequence valve 4, series flow control valve 3, supplementing fluid in the direction of arrows oil hydraulic motor 1, carries out afterflow.
Due to a variety of causes, as oil hydraulic motor 1 and that the concentric deviation of mechanical connection is large, sequence valve 4 regulates is improper, the factor such as unholiness of fluid, cause oil hydraulic motor well damage.
Summary of the invention
The invention provides a kind of Centrifugal smearing machine Hydraulic Power Transmission System, its objective is and avoid oil hydraulic motor to damage, extend its life-span.
To achieve these goals, the technological scheme that the present invention takes is:
Centrifugal smearing machine Hydraulic Power Transmission System of the present invention, comprises oil hydraulic pump, oil hydraulic motor, selector valve and sequence valve, and described sequence valve is arranged on on two of selector valve pipelines that actuator port is in parallel; On the filler opening pipeline and oil outlet pipeline of described oil hydraulic motor, be arranged in parallel afterflow one-way valve with described oil hydraulic motor, its afterflow direction is from the oil outlet of oil hydraulic motor to filler opening.
On the working connection of described selector valve to oil hydraulic motor filler opening, series flow control valve is set; The filler opening of described series flow control valve is between the pipeline and the pipeline of afterflow one-way valve of sequence valve.
At described oil hydraulic pump on the oil circuit of selector valve, relief valve is set.
At described relief valve on the oil circuit of oil hydraulic pump, accumulator is set.
Described selector valve is single two-position four-way solenoid valve, that is: the working position end of solenoid valve arranges electromagnet, and solenoid valve reset end arranges Returnning spring.
At described oil hydraulic motor oil outlet on the working connection of selector valve, one-way valve is set, between the pipeline and sequence valve pipeline of described afterflow one-way valve; Described one-way valve conducting direction is from oil hydraulic motor oil outlet to selector valve.
The back pressure of described afterflow one-way valve is 2.5 ~ 3MPa.
The present invention adopts technique scheme; protection one-way valve is connected in parallel at the import and export two ends of oil hydraulic motor; protect one-way valve at ordinary times and be failure to actuate; play a protective role when only having original system to break down; technological requirement when making it can ensure system worked well; again can oil cleanness reduce or the foreign matters from being blocked oil circuit control such as particle of seal ring aged deterioration time; prevent the situation that afterflow is interrupted, caused motor lock-rotor to damage; thus ensure that motor can not produce stall and damage, extend its working life.
Accompanying drawing explanation
Mark in content shown in accompanying drawing and figure is as follows:
Fig. 1 is the structural representation described in background technique;
Fig. 2 is structural representation of the present invention.
Be labeled as in figure:
1, oil hydraulic motor, 2, selector valve, 3, series flow control valve, 4, sequence valve, 5, relief valve, 6, accumulator, 7, afterflow one-way valve, 8, one-way valve.
Embodiment
Contrast accompanying drawing below, by the description to embodiment, the specific embodiment of the present invention is described in further detail, have more complete, accurate and deep understanding to help those skilled in the art to inventive concept of the present invention, technological scheme.
Structure as shown in Figure 2, is Centrifugal smearing machine Hydraulic Power Transmission System of the present invention, comprises oil hydraulic pump, oil hydraulic motor 1, selector valve 2 and sequence valve 4, and described sequence valve 4 is arranged on on two of selector valve 2 pipelines that actuator port is in parallel.The claimed technological scheme of the present invention relates to oil hydraulic motor running protection, prevents motor from damaging and increases the service life.
In order to solve prior art Problems existing and overcome its defect, realize avoiding oil hydraulic motor to damage, extend the goal of the invention in its life-span, the technological scheme that the present invention takes is:
As shown in Figure 2, Centrifugal smearing machine Hydraulic Power Transmission System of the present invention, on the filler opening pipeline and oil outlet pipeline of described oil hydraulic motor 1, be arranged in parallel afterflow one-way valve 7 with described oil hydraulic motor 1, its afterflow direction is from the oil outlet of oil hydraulic motor 1 to filler opening.
When 1DT obtains electric, pressure oil is through reversing solenoid valve, flow control valve, provide power along the direction of arrow for motor.
When Fig. 2 solenoid directional control valve 1DT dead electricity, motor enters braking freewheeling state, and because fluid is unholiness, in system, the reason such as sealing, conduit deteriorates, makes filthy blocking decompression sequence valve oil circuit control in system, cause order reduction valve to close, motor damages without afterflow stall.
Even there occurs above situation sequence valve when can not play a protective role, oil hydraulic motor 1 can carry out afterflow by afterflow one-way valve 7 and protect.Import and export two ends at oil hydraulic motor 1 and connect this one-way valve, technological requirement can be ensured, can, when oil cleanness reduces or have the particulate component of similar seal ring aged deterioration to block oil circuit control, afterflow can not be caused to interrupt situation again, thus ensure that motor can not produce stall and damage.Can ensure that Centrifugal smearing machine equipment runs completely, and the not accidental damage of protection motor, improve working life.
On the working connection of described selector valve 2 to oil hydraulic motor 1 filler opening, series flow control valve 3 is set; The filler opening of described series flow control valve 3 is between the pipeline and the pipeline of afterflow one-way valve 7 of sequence valve 4.
Series flow control valve 3 is used for the rotating speed of regulator solution pressure motor 1.
On the oil circuit of described oil hydraulic pump to selector valve 2, relief valve 5 is set.
Relief valve 5 realizes the overflow voltage stabilizing of system.After it is set as certain force value, system, once exceed, will be protected by overflow.
On the oil circuit of described relief valve 5 to oil hydraulic pump, accumulator 6 is set.
Accumulator 6 system in short-term fuel cut-off time, the pressure of keeping system.
Described selector valve 2 is single two-position four-way solenoid valve, that is: the working position end of solenoid valve arranges electromagnet, and solenoid valve reset end arranges Returnning spring.
At described oil hydraulic motor 1 oil outlet on the working connection of selector valve 2, one-way valve 8 is set, between the pipeline and sequence valve 4 pipeline of described afterflow one-way valve 7; Described one-way valve 8 conducting direction is from oil hydraulic motor 1 oil outlet to selector valve 2.
The effect of one-way valve 8 is: prevent oil hydraulic motor 1 from the process of selector valve 2 action, instant reversal occurring.
The back pressure of described afterflow one-way valve 7 is 2.5 ~ 3MPa.
Ensure back pressure during motor braking, meet the period of braking of technological requirement, extend motor working life.One-way valve back pressure value is selected, and adds 0.5MP (original system one-way valve back pressure value) higher than systematic order reduction valve adjusted value.So just make protection one-way valve at ordinary times and be failure to actuate, playing a protective role when only having original system to break down, reaching the effect not destroying original system and normally work and protection motor can be reached.
Above by reference to the accompanying drawings to invention has been exemplary description; obvious specific implementation of the present invention is not subject to the restrictions described above; as long as have employed the improvement of the various unsubstantialities that method of the present invention is conceived and technological scheme is carried out; or design of the present invention and technological scheme directly applied to other occasion, all within protection scope of the present invention without to improve.
Claims (7)
1. a Centrifugal smearing machine Hydraulic Power Transmission System, comprise oil hydraulic pump, oil hydraulic motor (1), selector valve (2) and sequence valve (4), described sequence valve (4) be arranged on be positioned at oil hydraulic motor (1) the pipeline between in-line and return line on;
It is characterized in that:
On the filler opening pipeline and oil outlet pipeline of described oil hydraulic motor (1), be arranged in parallel afterflow one-way valve (7) with described oil hydraulic motor (1), its afterflow direction is from the oil outlet of oil hydraulic motor (1) to filler opening;
On the oil circuit of described oil hydraulic pump to selector valve (2), relief valve (5) is set;
At described oil hydraulic motor (1) oil outlet on the working connection of selector valve (2), one-way valve (8) is set, between the pipeline being positioned at described afterflow one-way valve (7) and sequence valve (4) pipeline; Described one-way valve (8) conducting direction is from oil hydraulic motor (1) oil outlet to selector valve (2).
2. according to Centrifugal smearing machine Hydraulic Power Transmission System according to claim 1, it is characterized in that: at described relief valve (5) on the oil circuit of oil hydraulic pump, accumulator (6) is set.
3. according to the Centrifugal smearing machine Hydraulic Power Transmission System described in claim 1 or 2, it is characterized in that: the back pressure of described afterflow one-way valve (7) is 2.5 ~ 3MPa.
4. a Centrifugal smearing machine Hydraulic Power Transmission System, comprise oil hydraulic pump, oil hydraulic motor (1), selector valve (2) and sequence valve (4), described sequence valve (4) be arranged on be positioned at oil hydraulic motor (1) the pipeline between in-line and return line on;
It is characterized in that:
On the filler opening pipeline and oil outlet pipeline of described oil hydraulic motor (1), be arranged in parallel afterflow one-way valve (7) with described oil hydraulic motor (1), its afterflow direction is from the oil outlet of oil hydraulic motor (1) to filler opening;
Described selector valve (2) is single two-position four-way solenoid valve, that is: the working position end of solenoid valve arranges electromagnet, and solenoid valve reset end arranges Returnning spring;
At described oil hydraulic motor (1) oil outlet on the working connection of selector valve (2), one-way valve (8) is set, between the pipeline being positioned at described afterflow one-way valve (7) and sequence valve (4) pipeline; Described one-way valve (8) conducting direction is from oil hydraulic motor (1) oil outlet to selector valve (2).
5. according to Centrifugal smearing machine Hydraulic Power Transmission System according to claim 4, it is characterized in that: the back pressure of described afterflow one-way valve (7) is 2.5 ~ 3MPa.
6. a Centrifugal smearing machine Hydraulic Power Transmission System, comprise oil hydraulic pump, oil hydraulic motor (1), selector valve (2) and sequence valve (4), described sequence valve (4) be arranged on be positioned at oil hydraulic motor (1) the pipeline between in-line and return line on;
It is characterized in that:
On the filler opening pipeline and oil outlet pipeline of described oil hydraulic motor (1), be arranged in parallel afterflow one-way valve (7) with described oil hydraulic motor (1), its afterflow direction is from the oil outlet of oil hydraulic motor (1) to filler opening;
On the oil circuit of described oil hydraulic pump to selector valve (2), relief valve (5) is set;
Described selector valve (2) is single two-position four-way solenoid valve, that is: the working position end of solenoid valve arranges electromagnet, and solenoid valve reset end arranges Returnning spring;
At described oil hydraulic motor (1) oil outlet on the working connection of selector valve (2), one-way valve (8) is set, between the pipeline being positioned at described afterflow one-way valve (7) and sequence valve (4) pipeline; Described one-way valve (8) conducting direction is from oil hydraulic motor (1) oil outlet to selector valve (2).
7. according to Centrifugal smearing machine Hydraulic Power Transmission System according to claim 6, it is characterized in that: the back pressure of described afterflow one-way valve (7) is 2.5 ~ 3MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610019697.6A CN105465069B (en) | 2014-11-07 | 2014-11-07 | Centrifugal smearing machine Hydraulic Power Transmission System |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610019697.6A CN105465069B (en) | 2014-11-07 | 2014-11-07 | Centrifugal smearing machine Hydraulic Power Transmission System |
| CN201410624486.6A CN104358723B (en) | 2014-11-07 | 2014-11-07 | A kind of Centrifugal smearing machine Hydraulic Power Transmission System |
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 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105465069A true CN105465069A (en) | 2016-04-06 |
| CN105465069B CN105465069B (en) | 2018-05-25 |
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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 |
| CN201610032079.5A Active CN105485076B (en) | 2014-11-07 | 2014-11-07 | A kind of 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 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610032079.5A Active CN105485076B (en) | 2014-11-07 | 2014-11-07 | A kind of 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 |
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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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- 2014-11-07 CN CN201610032079.5A patent/CN105485076B/en active Active
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Also Published As
| Publication number | Publication date |
|---|---|
| CN104358723B (en) | 2016-03-16 |
| CN105508326B (en) | 2017-05-03 |
| CN105485076B (en) | 2017-04-05 |
| CN105485076A (en) | 2016-04-13 |
| CN104358723A (en) | 2015-02-18 |
| CN105465069B (en) | 2018-05-25 |
| CN105508326A (en) | 2016-04-20 |
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