CN208057593U - Series connection motor automatically equalizing voltage valve group - Google Patents
Series connection motor automatically equalizing voltage valve group Download PDFInfo
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- CN208057593U CN208057593U CN201820251890.7U CN201820251890U CN208057593U CN 208057593 U CN208057593 U CN 208057593U CN 201820251890 U CN201820251890 U CN 201820251890U CN 208057593 U CN208057593 U CN 208057593U
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- hydraulic fluid
- valve
- fluid port
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- series connection
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Abstract
The utility model is suitable for technical field of hydraulic, provide a kind of series connection motor automatically equalizing voltage valve group, including pilot operated directional control valve, two-position two-way solenoid valve, automatic homogeneous pressure valve, two-position three way magnetic valve, the first check valve, the second check valve, the first hydraulic fluid port, the second hydraulic fluid port, third hydraulic fluid port, the 4th hydraulic fluid port, the 5th hydraulic fluid port, the 6th hydraulic fluid port and the 7th hydraulic fluid port.A kind of series connection motor automatically equalizing voltage valve group provided by the utility model, in such a way that automatic homogeneous pressure valve coordinates each solenoid valve, realize the automatically equalizing voltage of the oil inlet and outlet of series connection motor, when avoiding the occurrence of motor tandem working, a certain motor is in passive and is emptied state and can not carry out effectively lubricating the case where being also easy to produce failure.
Description
Technical field
The utility model belongs to mechanical equipment technical field, and in particular to arrives a kind of series connection motor automatically equalizing voltage valve group.
Background technology
In drilling machine class construction equipment, drilling equipment is generally driven by two motors, and the string equipped with motor is simultaneously
Join switching control valve.When oil circuit series connection can be achieved, equipment high speed rotation is crept into；When being switched to parallel connection, equipment is crept into
The characteristic of low-speed big rotation.When using series connection oil circuit, the motor by oil inlet this side is drive motor, because motor exists
It inevitably leaks, therefore another motor is dragged motor.Motor dragged in this way is in and is emptied state, cannot carry out
Effective lubrication, leads to failure frequent occurrence.
Utility model content
The purpose of the utility model is to overcome motors when motor tandem working in the above-mentioned class equipment of drilling machine in the prior art
Appearance, which is emptied state, can not effectively be lubricated, be also easy to produce the deficiency of failure, provide a kind of series connection motor automatically equalizing voltage
Valve group.
The utility model is realized in this way：Series connection motor automatically equalizing voltage valve group, including pilot operated directional control valve, bi-bit bi-pass
Solenoid valve, automatic homogeneous pressure valve, two-position three way magnetic valve, the first check valve, the second check valve, the first hydraulic fluid port, the second hydraulic fluid port, third
Hydraulic fluid port, the 4th hydraulic fluid port, the 5th hydraulic fluid port, the 6th hydraulic fluid port and the 7th hydraulic fluid port；
Wherein, first hydraulic fluid port is connect with the 4th hydraulic fluid port, the 5th end and described first of the pilot operated directional control valve
Hydraulic fluid port and the connection of the 4th hydraulic fluid port, the 4th end and the 6th hydraulic fluid port and described two two barrels of electromagnetism of the pilot operated directional control valve
One end of valve connects, and one end of the two-position two-way solenoid valve is also connect with the 6th hydraulic fluid port, the two-position two-way solenoid valve
The other end connect with the first end of the cavity of resorption of the automatic homogeneous pressure valve, the second end of the epicoele of the automatic homogeneous pressure valve with it is described
Third hydraulic fluid port connects, and the second end of the epicoele of the automatic homogeneous pressure valve also passes through the upper of a partial pressure half-bridge and the automatic homogeneous pressure valve
The third end of chamber connects, front and back equipped with the identical damping hole of two sizes on the partial pressure half-bridge, first hydraulic fluid port also with institute
State the oil inlet connection of the first check valve, the oil outlet of first check valve and the partial pressure half-bridge and the automatically equalizing voltage
The third end of the epicoele of valve connects；
Second hydraulic fluid port is connect with the 7th hydraulic fluid port, and the second end of the pilot operated directional control valve connects with second hydraulic fluid port
Connect, the third end of the pilot operated directional control valve is connect with the 5th hydraulic fluid port, and second hydraulic fluid port also with second check valve
Oil inlet connection, the oil outlet of the oil outlet of second check valve and first check valve, the partial pressure half-bridge and
The third end of the epicoele of the automatic homogeneous pressure valve connects；
Oil outlet and second check valve of the first end of the two-position three way magnetic valve with first check valve
Oil outlet connection, the second end of the two-position three way magnetic valve connect with the control port of the pilot operated directional control valve, described two
The third end of position-3-way solenoid valve is connect with the third hydraulic fluid port.
A kind of series connection motor automatically equalizing voltage valve group provided by the utility model, compared with the existing technology, using automatic equal
Pressure valve coordinates the mode of each solenoid valve, realizes the automatically equalizing voltage of the oil inlet and outlet of series connection motor, avoids the occurrence of motor series connection work
When making, a certain motor is in passive and is emptied state and can not carry out effectively lubricating the case where being also easy to produce failure.
Description of the drawings
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is this
Some embodiments of utility model, for those of ordinary skill in the art, without creative efforts, also
It can be obtain other attached drawings according to these attached drawings.
The following drawings is only intended in doing schematic illustration and explanation to the utility model, does not limit the model of the utility model
It encloses.
Fig. 1 is the principle schematic for the series connection motor automatically equalizing voltage valve group that the utility model embodiment provides.
Specific implementation mode
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to explain
The utility model is not used to limit the utility model.
Unless otherwise defined, the technical term or scientific terminology that the utility model uses are should be belonging to the utility model
The ordinary meaning that the personage with general technical ability is understood in field." first " that is used in the utility model, " second " and
Similar word is not offered as any sequence, quantity or importance, and is used only to distinguish different component parts.Equally,
"one", the similar word such as " one " or "the" do not indicate that quantity limits yet, but indicates that there are at least one." comprising " or
The similar word such as "comprising" means that the element or object that occur before the word cover the element for appearing in the word presented hereinafter
Either object and its equivalent and be not excluded for other elements or object.The similar word such as " connection " or " connected " not limits
Due to physics or mechanical connection, but may include electrical connection, either directly or indirectly."upper",
"lower", "left", "right" etc. are only used for indicating relative position relation, and after the absolute position for being described object changes, then this is opposite
Position relationship may also correspondingly change.
Embodiment
Referring to Fig. 1, series connection motor automatically equalizing voltage valve group, including it is pilot operated directional control valve 1, two-position two-way solenoid valve 2, automatic
Equalizing valve 3, two-position three way magnetic valve 4, the first check valve 5a, the second check valve 5b, the first hydraulic fluid port P1, the second hydraulic fluid port P2, third
Hydraulic fluid port T, the 4th hydraulic fluid port A1, the 5th hydraulic fluid port A2, the 6th hydraulic fluid port A3 and the 7th hydraulic fluid port A4；
Wherein, the first hydraulic fluid port P1 is connect with the 4th hydraulic fluid port A1, the 5th end of pilot operated directional control valve 1 and the first hydraulic fluid port P1 and the
Four hydraulic fluid port A1 connections, the 4th end of pilot operated directional control valve 1 are connect with one end of the 6th hydraulic fluid port A3 and two two barrels of solenoid valves 2, and two
One end of position two-way electromagnetic valve 2 is also connect with the 6th hydraulic fluid port A3, the other end and the automatic homogeneous pressure valve 3 of two-position two-way solenoid valve 2
The first end of cavity of resorption connects, and the second end of the epicoele of automatic homogeneous pressure valve 3 is connect with third hydraulic fluid port T, the epicoele of automatic homogeneous pressure valve 3
Second end is also connect by a partial pressure half-bridge 6 with the third end of the epicoele of automatic homogeneous pressure valve 3, is divided front and back equipped with two on half-bridge 6
The identical damping hole 61 of a size, the first hydraulic fluid port P1 is also connect with the oil inlet of the first check valve 5a, and the first check valve 5a's goes out
Hydraulic fluid port is connect with the third end of partial pressure half-bridge 6 and the epicoele of automatic homogeneous pressure valve 3；
Second hydraulic fluid port P2 is connect with the 7th hydraulic fluid port A4, and the second end of pilot operated directional control valve 1 is connect with the second hydraulic fluid port P2, and hydraulic control is changed
It is connect to the third end of valve 1 with the 5th hydraulic fluid port A2, and the second hydraulic fluid port P2 is also connect with the oil inlet of the second check valve 5b, second is single
To valve 5b oil outlet and the first check valve 5a oil outlet, partial pressure half-bridge 6 and automatic homogeneous pressure valve 3 epicoele third end connect
It connects；
The first end of two-position three way magnetic valve 4 and the oil outlet of the first check valve 5a and the oil outlet of the second check valve 5b
Connection, the second end of two-position three way magnetic valve 4 are connect with the control port of pilot operated directional control valve 1, the third of two-position three way magnetic valve 4
End is connect with third hydraulic fluid port T.
Among the above, specifically, the series connection motor automatically equalizing voltage valve group, wherein hydraulic oil can by the first hydraulic fluid port P1 and
Second hydraulic fluid port P2 enters, and third hydraulic fluid port T can be connect with external fuel tank, and the 4th hydraulic fluid port A1 and the 5th hydraulic fluid port A2 can be with the first horses
Up to 7 connections, the 6th hydraulic fluid port A3 and the 7th hydraulic fluid port A4 can be connect with the second motor 8；
In turn, the series connection motor with automatically equalizing voltage valve group at work, two-position two-way solenoid valve 2, two-position three way magnetic valve 4
Must be electric, the control port oil inlet of pilot operated directional control valve 1, pilot operated directional control valve 1 is switched to right position under the action of pilot pressure oil, this
When, which controls each motor and enters series connection operating mode.
Under tandem working state, the first end of the cavity of resorption of automatic homogeneous pressure valve 3 is connect with the 6th hydraulic fluid port A3, i.e. automatically equalizing voltage
The first end of the cavity of resorption of valve 3 can be connected to the oil inlet of the second motor 8；And the third end of epicoele is connected to partial pressure half-bridge 6, is divided
The inlet pressure of half-bridge 6 is MA-MB, and by setting partial pressure half-bridge, former and later two damping hole sizes are identical, it can be achieved that automatically equalizing voltage
The upper cavity pressure of valve 3=(MA-MB)/2；Again because the cavity of resorption spring of automatic homogeneous pressure valve 3 is very weak, pretightning force is negligible.It utilizes
The adjust automatically of 3 upper and lower cavity dynamic balance valve of automatic homogeneous pressure valve, come realize automatic homogeneous pressure valve 3 cavity of resorption pressure always=(MA-
MB)/2, i.e., the pressure of the 6th hydraulic fluid port A2 is always=(MA-MB)/2.
In turn, the first motor 7 and the available pressure difference of the first motor 8 are (MA-MA)/2, and there is no be passively emptied horse
Reach, when avoiding the occurrence of motor tandem working, a certain motor be in it is passive be emptied state two and can not carry out effectively lubricating be also easy to produce
The case where failure.
In conclusion a kind of series connection motor automatically equalizing voltage valve group provided by the utility model is adopted compared with the existing technology
The mode for coordinating each solenoid valve with automatic homogeneous pressure valve realizes the automatically equalizing voltage of the oil inlet and outlet of series connection motor, avoids the occurrence of horse
Up to when tandem working, a certain motor is in passive and is emptied state and can not carry out effectively lubricating the case where being also easy to produce failure.
There is the following to need to illustrate：
(1) unless otherwise defined, in the embodiments of the present invention and attached drawing, same label represents same meaning.
(2) in the utility model embodiment attached drawing, the structure being related to the utility model embodiment is related only to, other
Structure, which can refer to, to be commonly designed.
(3) for clarity, in the attached drawing for describing the embodiments of the present invention, the thickness quilt in layer or region
Amplification.It is appreciated that when the element of such as layer, film, region or substrate etc is referred to as being located at "above" or "below" another element,
The element " direct " can be located at "above" or "below" another element, or may exist intermediary element.
(4) in the absence of conflict, the feature in the same embodiment of the utility model and different embodiment can phase
Mutually combination.
The above is only the preferred embodiments of the present utility model only, is not intended to limit the utility model, all in this practicality
Any modification, equivalent replacement or improvement etc., should be included in the guarantor of the utility model made by within novel spirit and principle
Within the scope of shield.
Claims (1)
1. connect motor automatically equalizing voltage valve group, which is characterized in that including pilot operated directional control valve (1), two-position two-way solenoid valve (2),
Automatic homogeneous pressure valve (3), two-position three way magnetic valve (4), the first check valve (5a), the second check valve (5b), the first hydraulic fluid port (P1),
Two hydraulic fluid ports (P2), third hydraulic fluid port (T), the 4th hydraulic fluid port (A1), the 5th hydraulic fluid port (A2), the 6th hydraulic fluid port (A3) and the 7th hydraulic fluid port
(A4)；
Wherein, first hydraulic fluid port (P1) connect with the 4th hydraulic fluid port (A1), the 5th end of the pilot operated directional control valve (1) and institute
State the first hydraulic fluid port (P1) and the connection of the 4th hydraulic fluid port (A1), the 4th end and the 6th hydraulic fluid port of the pilot operated directional control valve (1)
(A3) and the connection of one end of the two-position two-way solenoid valve (2), one end of the two-position two-way solenoid valve (2) is also with described the
Six hydraulic fluid ports (A3) connect, the first end of the other end of the two-position two-way solenoid valve (2) and the cavity of resorption of the automatic homogeneous pressure valve (3)
Connection, the second end of the epicoele of the automatic homogeneous pressure valve (3) are connect with the third hydraulic fluid port (T), the automatic homogeneous pressure valve (3)
The second end of epicoele is also connect by a partial pressure half-bridge (6) with the third end of the epicoele of the automatic homogeneous pressure valve (3), the partial pressure
It is front and back on half-bridge (6) to be equipped with the identical damping hole (61) of two sizes, first hydraulic fluid port (P1) also with first check valve
The oil inlet of (5a) connects, oil outlet and the partial pressure half-bridge (6) and the automatically equalizing voltage of first check valve (5a)
The third end of the epicoele of valve (3) connects；
Second hydraulic fluid port (P2) connect with the 7th hydraulic fluid port (A4), the second end of the pilot operated directional control valve (1) and described the
Two hydraulic fluid ports (P2) connect, and the third end of the pilot operated directional control valve (1) is connect with the 5th hydraulic fluid port (A2), and second hydraulic fluid port
(P2) it is also connect with the oil inlet of second check valve (5b), the oil outlet of second check valve (5b) is single with described first
It is connected to the third end of the epicoele of the oil outlet of valve (5a), the partial pressure half-bridge (6) and the automatic homogeneous pressure valve (3)；
The oil outlet and described second of the first end of the two-position three way magnetic valve (4) and first check valve (5a) is unidirectionally
The oil outlet of valve (5b) connects, the control port of the second end and the pilot operated directional control valve (1) of the two-position three way magnetic valve (4)
Connection, the third end of the two-position three way magnetic valve (4) is connect with the third hydraulic fluid port (T).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820251890.7U CN208057593U (en) | 2018-02-11 | 2018-02-11 | Series connection motor automatically equalizing voltage valve group |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820251890.7U CN208057593U (en) | 2018-02-11 | 2018-02-11 | Series connection motor automatically equalizing voltage valve group |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208057593U true CN208057593U (en) | 2018-11-06 |
Family
ID=63990448
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820251890.7U Expired - Fee Related CN208057593U (en) | 2018-02-11 | 2018-02-11 | Series connection motor automatically equalizing voltage valve group |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208057593U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111980979A (en) * | 2020-06-29 | 2020-11-24 | 武汉船用机械有限责任公司 | Hydraulic control system for swing mechanism |
-
2018
- 2018-02-11 CN CN201820251890.7U patent/CN208057593U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111980979A (en) * | 2020-06-29 | 2020-11-24 | 武汉船用机械有限责任公司 | Hydraulic control system for swing mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181106 Termination date: 20220211 |