CN208997051U - A kind of plug support frame quick pressure releasing control loop - Google Patents
A kind of plug support frame quick pressure releasing control loop Download PDFInfo
- Publication number
- CN208997051U CN208997051U CN201821785910.5U CN201821785910U CN208997051U CN 208997051 U CN208997051 U CN 208997051U CN 201821785910 U CN201821785910 U CN 201821785910U CN 208997051 U CN208997051 U CN 208997051U
- Authority
- CN
- China
- Prior art keywords
- valve
- mouthfuls
- hydraulic cylinder
- proportional reversing
- reversing valve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
Links
- 238000006073 displacement reaction Methods 0.000 claims abstract description 14
- 239000012530 fluid Substances 0.000 description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000006837 decompression Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
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- Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
Abstract
The utility model relates to a kind of plug support frame quick pressure releasing control loops, displacement sensor is connect with hydraulic cylinder, proportional reversing valve and displacement sensor constitute the position-force control system of control Position of Hydraulic Cylinder, P, T, A, B mouthfuls of proportional reversing valve is not connected to mutually, the connection of the A of hydraulic cylinder rodless cavity lateral line and proportional reversing valve mouth, hydraulic cylinder rod chamber lateral line is connect with B mouthfuls of proportional reversing valve, it is connected with quick-release connector between hydraulic cylinder rodless cavity lateral line and A mouthfuls of proportional reversing valve, oil return circuit and T mouthfuls of proportional reversing valve are also connected to by overflow valve；It is connected with quick-release connector between hydraulic cylinder rod chamber lateral line and B mouthfuls of proportional reversing valve, oil return circuit and T mouthfuls of proportional reversing valve are also connected to by check valve；Two oil inlets of shuttle valve are connected between hydraulic cylinder rodless cavity lateral line and rod chamber lateral line, the oil outlet of shuttle valve is connected to common reversal valve P mouthfuls, B mouthfuls and T mouthfuls and is connected to oil return circuit, and the P mouth of proportional reversing valve is connected to working connection.
Description
Technical field
The utility model belongs to field of hydraulic control, is related to a kind of plug support frame quick pressure releasing control loop.
Background technique
The effect of pipe-mill plug support frame is for forming plug supporting system.During the rolling process, to plug into
Row bearing and guiding；During rod slipping off retracts, plug is supported.The movement of plug support frame by hydraulic cylinder, proportional reversing valve,
The HYDRAULIC CONTROL SYSTEMs such as displacement sensor.Hydraulic cylinder is mounted on plug support frame.Due to wearing or replacing pre-threading travel, plug
Support frame needs irregularly replacement.For quick-replaceable plug support frame, quick change is generally used between hydraulic cylinder and intermediate piping
Connector connection.Quick-release connector requires to release stress in plug, and otherwise quick-release connector plug is extremely difficult, while will affect use
Service life.
Plug support frame hydraulic control circuit without decompression function includes hydraulic cylinder 9, displacement sensor as shown in Figure 1:
10, quick-release connector 11, overflow valve 12, check valve 13, proportional reversing valve 14.It such as needs to plug quick-release connector, need on station
Control proportional reversing valve commutation.When the spool of proportional reversing valve is at a, the chamber side of oil cylinder is connected to T mouthfuls, can be plugged at this time
Chamber side quick-release connector.When the spool of proportional reversing valve is switched to b, the bar side of oil cylinder is connected to T mouthfuls, can plug bar at this time
Side quick-release connector.This mode is cumbersome, can only plug the side of hydraulic cylinder every time, and is easy to obscure.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of two chamber of plug support frame lifting hydraulic cylinder quickly, peace
Entirely, the hydraulic circuit of convenient pressure release.
In order to achieve the above objectives, the utility model provides the following technical solutions:
A kind of plug support frame quick pressure releasing hydraulic circuit, it is hydraulic cylinder, displacement sensor, quick-release connector, overflow valve, unidirectional
Valve, shuttle valve, common reversal valve and proportional reversing valve；Institute's displacement sensors are connect with hydraulic cylinder, and proportional reversing valve and displacement pass
Sensor constitutes the position-force control system of control Position of Hydraulic Cylinder, and the proportional reversing valve is three-position four-way valve, P, T, A, B
Mouthful be not connected to mutually, A mouth of the hydraulic cylinder rodless cavity lateral line and proportional reversing valve connects, hydraulic cylinder rod chamber lateral line and than
B mouthfuls of reversal valve connections of example, are connected with quick-release connector between the hydraulic cylinder rodless cavity lateral line and A mouthfuls of proportional reversing valve, also pass through
Overflow valve is connected to oil return circuit and T mouthfuls of proportional reversing valve；Connect between the hydraulic cylinder rod chamber lateral line and B mouthfuls of proportional reversing valve
It is connected to quick-release connector, oil return circuit and T mouthfuls of proportional reversing valve are also connected to by check valve；The hydraulic cylinder rodless cavity lateral line
It is connected with two oil inlets of shuttle valve between rod chamber lateral line, the oil outlet of the shuttle valve is connected to common reversal valve P mouthfuls, general
The A mouth closing of logical reversal valve, B mouthfuls and T mouthfuls are connected to oil return circuit, and the P mouth of the proportional reversing valve is connected to working connection.
Further, the common reversal valve is two position and four-way reversing valve of Single electromagnet.
Further, in normal work, common reversal valve electromagnet power loss, shuttle valve can guarantee between chamber side and bar side pipeline
Do not alter oil；When plugging quick-release connector, common reversal valve electromagnet obtains electric pressure on quick release chamber side and bar side pipeline.
The utility model has the beneficial effects that: circuit is simple, it is convenient to operate, control safety, in common reversal valve electromagnetism
Under iron power failure state, plug support frame can be worked normally；In the case where electromagnet obtains electricity condition, two chamber of hydraulic cylinder can complete pressure release.
Detailed description of the invention
In order to keep the purpose of this utility model, technical scheme and beneficial effects clearer, the utility model provides as follows
Attached drawing is illustrated:
Fig. 1 is conventional plug support frame hydraulic structure schematic diagram；
Fig. 2 is the plug support frame hydraulic structure schematic diagram of energy quick pressure releasing described in the utility model.
Appended drawing reference: hydraulic cylinder 1, displacement sensor 2, quick-release connector 3, overflow valve 4, check valve 5, shuttle valve 6, common commutation
Valve 7, proportional reversing valve 8.
Specific embodiment
Below in conjunction with attached drawing, the preferred embodiment of the utility model is described in detail.
As shown in Fig. 2, a kind of plug support frame quick pressure releasing hydraulic circuit of the utility model, a kind of plug support frame are fast
Fast pressure release hydraulic circuit, hydraulic cylinder 1, displacement sensor 2, quick-release connector 3, overflow valve 4, check valve 5, shuttle valve 6, common reversal valve
7 and proportional reversing valve 8；Institute's displacement sensors 2 are connect with hydraulic cylinder 1, and proportional reversing valve 8 and displacement sensor 2 are constituted and controlled
The position-force control system of 1 position of hydraulic cylinder, so that the position to plug support frame is accurately controlled.The ratio commutation
Valve 8 is three-position four-way valve, and P, T, A, B mouthfuls are not connected to mutually, the A mouth of the 1 rodless cavity lateral line of hydraulic cylinder and proportional reversing valve 8
Connection, 1 rod chamber lateral line of hydraulic cylinder are connect with 8B mouthfuls of proportional reversing valve, and the 1 rodless cavity lateral line of hydraulic cylinder and ratio are changed
It is connected with quick-release connector 3 between to 8A mouthfuls of valve, oil return circuit and 8T mouthfuls of proportional reversing valve are also connected to by overflow valve 4；The liquid
It is connected with quick-release connector 3 between 1 rod chamber lateral line of cylinder pressure and 8B mouthfuls of proportional reversing valve, oil return oil is also connected to by check valve 5
Road and 8T mouthfuls of proportional reversing valve；Be connected between the 1 rodless cavity lateral line of hydraulic cylinder and rod chamber lateral line two of shuttle valve 6 into
Hydraulic fluid port, the oil outlet C of the shuttle valve 6 are connected to common reversal valve 7P mouthfuls, and the A mouth closing of common reversal valve 7, B mouthfuls and T mouthfuls connect
To oil return circuit, the P mouth of the proportional reversing valve 8 is connected to working connection.The common reversal valve 7 is two four-ways of Single electromagnet
Reversal valve.
Overflow valve 4 discharges the pressure of 1 plunger shaft of hydraulic cylinder when plug hits support frame, at this time, it may be necessary to which check valve 5 is to bar
Chamber carries out repairing, and rod cavity is avoided to be emptied.7 collective effect of shuttle valve 6 and common reversal valve can be quick when plugging quick-release connector
Discharge the pressure on chamber side and bar side pipeline.
In normal work, common 7 electromagnet of reversal valve is in power failure state.During hydraulic cylinder stretches out, ratio commutation
The spool of valve is in b, and hydraulic cylinder cavity lateral line is high pressure, and bar side pipeline is low pressure, the hydraulic fluid port P1 and its oil outlet C of shuttle valve 6
Connection, and disconnected simultaneously with hydraulic fluid port P2；Common reversal valve 7 is in the state that P leads to A simultaneously, and A hydraulic fluid port is closed state；Therefore,
Hydraulic cylinder is normally stretched out.Conversely, the spool of proportional reversing valve is in a, hydraulic cylinder cavity side during hydraulic cylinder retracts
Pipeline is low pressure, and bar side pipeline is high pressure, and the hydraulic fluid port P2 of shuttle valve 6 is connected to its oil outlet C, and is disconnected simultaneously with hydraulic fluid port P1；It is general
Logical reversal valve 7 is in the state that P leads to A, and A hydraulic fluid port is closed state；Therefore, hydraulic cylinder is normally retracted.
When replacing plug support frame plug quick-release connector, hydraulic cylinder is in security bit, and the spool of proportional reversing valve is in
Middle position, 4 hydraulic fluid ports P, T, A, B of valve are not connected to mutually, and the electromagnet of common reversal valve 7 obtains electric.If two lumen roads of hydraulic cylinder
Any to be in high pressure on one side, the spool that will push shuttle valve 6 is connected to its oil outlet C, and is led by reversal valve 7 and oil return pipe T
It is logical, to achieve the purpose that pressure release.
Finally, it is stated that preferred embodiment above is merely intended for describing the technical solutions of the present application, but not for limiting the present application, to the greatest extent
Pipe has been described in detail the utility model by above preferred embodiment, but those skilled in the art should manage
Solution, can make various changes, without departing from the utility model claims book institute to it in the form and details
The range of restriction.
Claims (3)
1. a kind of plug support frame quick pressure releasing control loop, it is characterised in that: hydraulic cylinder, quick-release connector, overflows at displacement sensor
Flow valve, check valve, shuttle valve, common reversal valve and proportional reversing valve；Institute's displacement sensors are connect with hydraulic cylinder, proportional reversing valve
The position-force control system of control Position of Hydraulic Cylinder is constituted with displacement sensor, the proportional reversing valve is three-position four-way valve,
Its P, T, A, B mouthfuls are not connected to mutually, the A mouth connection of the hydraulic cylinder rodless cavity lateral line and proportional reversing valve, hydraulic cylinder rod chamber
Lateral line is connect with B mouthfuls of proportional reversing valve, is connected with fast changing-over between the hydraulic cylinder rodless cavity lateral line and A mouthfuls of proportional reversing valve
Head is also connected to oil return circuit and T mouthfuls of proportional reversing valve by overflow valve；The hydraulic cylinder rod chamber lateral line and ratio commutate
It is connected with quick-release connector between B mouthfuls of valve, oil return circuit and T mouthfuls of proportional reversing valve are also connected to by check valve；The hydraulic cylinder without
Two oil inlets of shuttle valve are connected between rod cavity lateral line and rod chamber lateral line, the oil outlet of the shuttle valve, which is connected to, commonly to be changed
To P mouthfuls of valve, the A mouth of common reversal valve is closed, and B mouthfuls and T mouthfuls are connected to oil return circuit, and the P mouth of the proportional reversing valve is connected to
Working connection.
2. plug support frame quick pressure releasing control loop according to claim 1, it is characterised in that: the common reversal valve
For two position and four-way reversing valve of Single electromagnet.
3. plug support frame quick pressure releasing control loop according to claim 1, it is characterised in that: in normal work,
Common reversal valve electromagnet power loss, shuttle valve, which can guarantee, does not alter oil between chamber side and bar side pipeline；When plugging quick-release connector, commonly
Reversal valve electromagnet obtains electric pressure on quick release chamber side and bar side pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821785910.5U CN208997051U (en) | 2018-10-30 | 2018-10-30 | A kind of plug support frame quick pressure releasing control loop |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821785910.5U CN208997051U (en) | 2018-10-30 | 2018-10-30 | A kind of plug support frame quick pressure releasing control loop |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208997051U true CN208997051U (en) | 2019-06-18 |
Family
ID=66806070
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821785910.5U Withdrawn - After Issue CN208997051U (en) | 2018-10-30 | 2018-10-30 | A kind of plug support frame quick pressure releasing control loop |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208997051U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109058191A (en) * | 2018-10-30 | 2018-12-21 | 中冶赛迪工程技术股份有限公司 | A kind of plug support frame quick pressure releasing control loop |
-
2018
- 2018-10-30 CN CN201821785910.5U patent/CN208997051U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109058191A (en) * | 2018-10-30 | 2018-12-21 | 中冶赛迪工程技术股份有限公司 | A kind of plug support frame quick pressure releasing control loop |
| CN109058191B (en) * | 2018-10-30 | 2024-02-23 | 中冶赛迪工程技术股份有限公司 | Quick pressure release control loop of plug support frame |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20190618 Effective date of abandoning: 20240223 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20190618 Effective date of abandoning: 20240223 |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |