CN108167251B - A kind of propulsion motor control system - Google Patents
A kind of propulsion motor control system Download PDFInfo
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- CN108167251B CN108167251B CN201711429139.8A CN201711429139A CN108167251B CN 108167251 B CN108167251 B CN 108167251B CN 201711429139 A CN201711429139 A CN 201711429139A CN 108167251 B CN108167251 B CN 108167251B
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- outlet
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- valve
- core assembly
- propulsion motor
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Abstract
The invention discloses a kind of propulsion motor control systems, include: propulsion motor, quickly propels valve, promotes valve and the unidirectional relief valve of double hydraulic control at a slow speed, it quickly propels valve to be connected with propulsion motor, promotes valve to be connected by the unidirectional relief valve of double hydraulic control with propulsion motor at a slow speed；The unidirectional relief valve of double hydraulic control includes valve body, the first core assembly, the second core assembly and control piston, valve body is equipped with the first import, first outlet, the second import and second outlet, the both ends for controlling piston cooperate with the first core assembly, the second core assembly respectively, to control the on-off of the first import and first outlet, the on-off of the second import and second outlet respectively, it further include first segment discharge orifice and the second throttle orifice, first import is communicated by first segment discharge orifice with first outlet, and the second import is communicated by the second throttle orifice with second outlet.Propulsion motor control system stable working of the invention, impact is small, low in cost, structure is simple, convenient and practical.
Description
Present patent application is for application No. is 2015105026958 divisional application, the applyings date of original application
Are as follows: 2015-08-14, invention and created name are as follows: a kind of unidirectional relief valve of double hydraulic control.
Technical field
The invention belongs to mechanical design fields, are related to a kind of check valve more particularly to a kind of propulsion motor control system.
Background technique
Existing hydraulic control one-way valve only has fully opened and a fully closing function, cannot be suitble to certain special operation condition requirements.
As shown in fig. 1, existing hydraulic control one-way valve is mostly by valve body, valve seat, spool, control piston, spring, end cap group
At.Hydraulic oil allows from A to A1 and B to B1 is flowed freely, and the flowing of reverse flow, that is, A1 to A and B1 to B are by control piston control
System.Only when control piston is moved to the left, pushes the spool on the left side to be moved to the left and be detached from the valve seat on the left side, hydraulic oil just can be with
It is flowed from A1 to A；It moves right when controlling piston, pushes the spool on the right to move right and the valve seat on the right is detached from, hydraulic oil
It can just be flowed from B1 to B.A1 to A and B1 to B is not flowable other than both of these case, and No leakage.
But in the case where certain special, for example, the propulsion control system of the propulsion motor of rock drilling machine.Rock drilling machine
Propulsion motor by quickly propelling valve and promoting valve to control respectively at a slow speed, due to hydraulic motor exist in let out, hydraulic motor all needs
Brake ability safety arrestment is wanted, is needed when brake works by the pressure release in brake piping.Due to hydraulic control one-way valve
With reversed cutoff function, and No leakage, so can not just discharge the pressure in brake piping.Meanwhile the valve of hydraulic control one-way valve
Mouth opens and closes suddenly can generate shake and hydraulic shock.
Summary of the invention
1. technical problems to be solved by the inivention
It is in the prior art above insufficient it is an object of the invention to overcome, provide a kind of propulsion motor control system.
2. technical solution
In order to achieve the above objectives, technical solution provided by the invention are as follows:
Propulsion motor control system of the invention, comprising: propulsion motor quickly propels valve, promotes valve and biliquid at a slow speed
Unidirectional relief valve is controlled, valve is quickly propelled and is connected with propulsion motor, promote valve at a slow speed by the unidirectional relief valve of double hydraulic control and promotes horse
Up to be connected.
As further improvement of the present invention, the unidirectional relief valve of double hydraulic control includes valve body, the first core assembly,
Two core assemblies and control piston, the valve body is equipped with mutually matched first import and first outlet, and cooperates
The second import and second outlet, first core assembly be set between first import and first outlet, described second
Core assembly be set between second import and second outlet, it is described control piston both ends respectively with the first spool group
Part, the cooperation of the second core assembly, to control on-off, the second import and the second outlet of first import and first outlet respectively
On-off, which is characterized in that further include first segment discharge orifice and the second throttle orifice, the first segment discharge orifice is set to first import
Between first outlet, second throttle orifice is set between second import and second outlet, and first import passes through
The first segment discharge orifice is communicated with the first outlet, and second import passes through second throttle orifice and the second outlet
It communicates.
As further improvement of the present invention, first core assembly and the second core assembly include spool and valve
Seat, the spool sliding are set on the valve seat, and one end of the spool and the control piston cooperate.
As further improvement of the present invention, first core assembly and the second core assembly further include end cap and bullet
Property element, the other end of the spool is connected by elastic element with the end cap, and the end cap is connected with the valve seat.
As further improvement of the present invention, the elastic element is spring.
As further improvement of the present invention, first import and the second import are located at the end face of described valve body one end
On.
As further improvement of the present invention, the first outlet and second outlet are located at the end of the valve body other end
On face.
As further improvement of the present invention, one end of the valve body is equipped with to be communicated with the first import and the second import
Cavity is controlled, the control piston is set in the control cavity.
As further improvement of the present invention, the valve seat of first core assembly and the second core assembly is equipped with logical
Hole, the control cavity are connected by the through-hole with the first outlet and second outlet.
As further improvement of the present invention, the first segment discharge orifice and the second throttle orifice are respectively arranged on the control chamber
Between body and first outlet, control cavity and the second outlet, the control cavity passes through first segment discharge orifice and first respectively
Outlet communicates, second throttle orifice is communicated with second outlet.
3. beneficial effect
Compared with the existing technology, technical solution of the present invention meet the propulsion motor of rock drilling machine by quickly propel valve and
Valve is promoted to control respectively at a slow speed, the requirement that liquid braking device needs pressure to discharge works at the same time that steady, impact is small, at low cost
It is honest and clean, structure is simple, convenient and practical.
Detailed description of the invention
The attached drawing for constituting a part of the invention is used to provide further understanding of the present invention, schematic reality of the invention
It applies example and its explanation is used to explain the present invention, do not constitute improper limitations of the present invention.In the accompanying drawings:
Fig. 1 be traditional hydraulic control one-way valve structural representation and hydraulic graphical diagram；
Fig. 2 be the embodiment of the present invention structural representation and hydraulic graphical diagram；
Fig. 3 is the structural schematic diagram of the propulsion motor control system of application of the embodiment of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the present invention can phase
Mutually combination.
Specific explaination is done to the embodiment of the present invention below with reference to attached drawing.
A kind of unidirectional relief valve of double hydraulic control of the embodiment of the present invention as shown in Figure 2 is suitable for propulsion motor and controls
In system, including valve body 1, the first core assembly, the second core assembly and control piston 2.
Valve body 1 be equipped with mutually matched first import A and first outlet A1 and mutually matched second import B and
Second outlet B1.First core assembly is set between the first import A and first outlet A1, and the second core assembly is set to the second import
Between B and second outlet B1, the both ends for controlling piston 2 cooperate with the first core assembly, the second core assembly respectively, to control respectively
Make the on-off of the first import A and first outlet A1, the on-off of the second import B and second outlet B1.
Further include first segment discharge orifice 3 and the second throttle orifice 4, first segment discharge orifice 3 be set to the first import A and first outlet A1 it
Between, the second throttle orifice 4 is set between the second import B and second outlet B1, and the first import A is gone out by first segment discharge orifice 3 with first
Mouth A1 is communicated, and the second import B is communicated by the second throttle orifice 4 with second outlet B1.
First core assembly and the second core assembly include spool 5, valve seat 6, end cap 7 and elastic element 8.Spool 5 slides
Be set on valve seat 6, one end of spool 5 and control piston 2 cooperate, and the other end of spool 5 passes through elastic element 8 and 7 phase of end cap
Even, end cap 7 is connected with valve seat 6.It is preferred that elastic element 8 is spring.
In an embodiment of the present invention, hydraulic oil allow from A to A1 and B to B1 flow freely, reverse flow, that is, A1 to A and
The flowing of B1 to B is controlled by control piston 2.When control piston 2 is moved to the left, the spool 5 on the left side is pushed to be moved to the left and the left side
Valve seat 6 be detached from, hydraulic oil can flow from A1 to A；Spool 5 on the right of control piston 2 moves right, pushes moves right
It is detached from the valve seat 6 on the right, hydraulic oil can be flowed from B1 to B.
Other than both of these case, the band restricted flow of A1 to A and B1 to B can also be realized by throttle orifice (3,4).Though
Right throttle orifice (3,4) has small amount of leakage, but can ignore, and does not influence system worked well.
As shown in Figure 3, in an embodiment of the present invention, a kind of propulsion motor control system, including it is propulsion motor 9, fast
Speed promotes valve 10, promotes valve 11 and the unidirectional relief valve 12 of double hydraulic control as above at a slow speed.Quickly propel valve 10 and 9 phase of propulsion motor
Even, valve 11 is promoted to be connected by the unidirectional relief valve 12 of double hydraulic control with propulsion motor 9 at a slow speed.As shown in Figure 3, by the quick of the left side
The hydraulic motor for promoting the two one band brakes of direction valve co- controlling of valve 11 at a slow speed on valve 10 and the right is promoted (to promote horse
Up to 9) working, the unidirectional relief valve 12 of a double hydraulic control is used, so that the control of left and right both direction valve does not interfere with each other (throttle orifice
Place has small amount of leakage, but can ignore, and does not influence system worked well).
The embodiment of the present invention increases the function of pressure release on the basis of existing hydraulic control one-way valve, meets hydraulic system
The requirement of dynamic device pressure release, and compression shock is reduced, stable working reduces production cost, and structure is simple, facilitates reality
With.
Specific embodiments of the present invention are described in detail above, but it is merely an example, the present invention is simultaneously unlimited
It is formed on particular embodiments described above.To those skilled in the art, any couple of present invention carries out equivalent modifications and
Substitution is also all among scope of the invention.Therefore, without departing from the spirit and scope of the invention made by equal transformation and
Modification, all should be contained within the scope of the invention.
Claims (9)
1. a kind of propulsion motor control system characterized by comprising propulsion motor, quickly propel valve, at a slow speed promote valve and
The unidirectional relief valve of double hydraulic control, quickly propels valve and is connected with propulsion motor, and valve is promoted to pass through the unidirectional relief valve of double hydraulic control and push away at a slow speed
It is connected into motor；The unidirectional relief valve of double hydraulic control includes valve body, the first core assembly, the second core assembly and controls piston,
The valve body is equipped with mutually matched first import and first outlet and mutually matched second import and second outlet,
First core assembly be set between first import and first outlet, second core assembly be set to described second into
Between mouth and second outlet, the both ends of the control piston cooperate with first core assembly, the second core assembly respectively, with
The on-off of first import and first outlet, the on-off of the second import and second outlet are controlled respectively；First import and
It is equipped with first segment discharge orifice between the first outlet, the second throttle orifice is equipped between second import and the second outlet,
First import is communicated by the first segment discharge orifice with the first outlet, and second import throttles by described second
Hole is communicated with the second outlet.
2. propulsion motor control system according to claim 1, which is characterized in that first core assembly and the second valve
Core assembly includes spool and valve seat, and the spool sliding is set on the valve seat, and one end of the spool and the control are lived
Plug cooperation.
3. propulsion motor control system according to claim 2, which is characterized in that first core assembly and the second valve
Core assembly further includes end cap and elastic element, and the other end of the spool is connected by elastic element with the end cap, the end
Lid is connected with the valve seat.
4. propulsion motor control system according to claim 3, which is characterized in that the elastic element is spring.
5. propulsion motor control system according to claim 4, which is characterized in that first import and the second import position
In on the end face of described valve body one end.
6. propulsion motor control system according to claim 5, which is characterized in that the first outlet and second outlet position
In on the end face of the valve body other end.
7. propulsion motor control system according to claim 6, which is characterized in that one end of the valve body is equipped with and first
The control cavity that import and the second import communicate, the control piston are set in the control cavity.
8. propulsion motor control system according to claim 7, which is characterized in that first core assembly and the second valve
The valve seat of core assembly is equipped with through-hole, and the control cavity is connected by the through-hole with the first outlet and second outlet.
9. propulsion motor control system according to claim 8, which is characterized in that the first segment discharge orifice and the second throttling
Hole is respectively arranged between the control cavity and first outlet, control cavity and the second outlet, the control cavity difference
It is communicated by first segment discharge orifice with first outlet, second throttle orifice is communicated with second outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711429139.8A CN108167251B (en) | 2015-08-14 | 2015-08-14 | A kind of propulsion motor control system |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510502695.8A CN105114385B (en) | 2015-08-14 | 2015-08-14 | A kind of unidirectional relief valve of double hydraulic control |
| CN201711429139.8A CN108167251B (en) | 2015-08-14 | 2015-08-14 | A kind of propulsion motor control system |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510502695.8A Division CN105114385B (en) | 2015-08-14 | 2015-08-14 | A kind of unidirectional relief valve of double hydraulic control |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108167251A CN108167251A (en) | 2018-06-15 |
| CN108167251B true CN108167251B (en) | 2019-11-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510502695.8A Active CN105114385B (en) | 2015-08-14 | 2015-08-14 | A kind of unidirectional relief valve of double hydraulic control |
| CN201711429139.8A Active CN108167251B (en) | 2015-08-14 | 2015-08-14 | A kind of propulsion motor control system |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510502695.8A Active CN105114385B (en) | 2015-08-14 | 2015-08-14 | A kind of unidirectional relief valve of double hydraulic control |
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| CN (2) | CN105114385B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112922916B (en) * | 2021-03-15 | 2023-08-08 | 徐州徐工随车起重机有限公司 | Damping-variable hydraulic control one-way valve |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5919705A (en) * | 1982-07-23 | 1984-02-01 | Kato Seisakusho:Kk | Runaway preventive device for actuater |
| CN2285346Y (en) * | 1997-03-04 | 1998-07-01 | 中南工业大学 | Pre-throttle bidirectional hydraulic lock |
| CN102478029A (en) * | 2010-11-23 | 2012-05-30 | 上海安彩智能技术有限公司 | Hydraulic system |
| CN102747948A (en) * | 2012-07-19 | 2012-10-24 | 山河智能装备股份有限公司 | Double-pump hydraulic control loop of key drilling action of cutting drill rig |
| CN103688656A (en) * | 2013-12-19 | 2014-04-02 | 湖北工业大学 | Small water weed cutting machine |
| CN104454705A (en) * | 2014-12-04 | 2015-03-25 | 安徽乐库智能停车设备有限公司 | Safe and stable hydraulic control system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2130217Y (en) * | 1992-01-29 | 1993-04-21 | 广州市国营白云液压机械厂 | Liquid controlled single-single way throttle composite valve |
| CN2212101Y (en) * | 1994-05-28 | 1995-11-08 | 兖州市圣达液压机械制造厂 | Two-way hydraulic lock |
| CN201269334Y (en) * | 2008-10-22 | 2009-07-08 | 上海立新液压有限公司 | Overlapping-mounted one-way throttle valve |
| CN102128284B (en) * | 2011-03-21 | 2012-08-22 | 蒋晓军 | Pressure-reduction type balance hydraulic lock |
| CN203614482U (en) * | 2013-10-14 | 2014-05-28 | 宁波明启液压机械有限公司 | Stacked bidirectional-unidirectional throttling valve |
| CN203770281U (en) * | 2014-04-18 | 2014-08-13 | 宁波市镇海华力液压机电有限公司 | Throttle valve |
| CN204921517U (en) * | 2015-08-14 | 2015-12-30 | 马鞍山唐拓凿岩机械有限公司 | One -way relief valve of biliquid accuse |
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2015
- 2015-08-14 CN CN201510502695.8A patent/CN105114385B/en active Active
- 2015-08-14 CN CN201711429139.8A patent/CN108167251B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5919705A (en) * | 1982-07-23 | 1984-02-01 | Kato Seisakusho:Kk | Runaway preventive device for actuater |
| CN2285346Y (en) * | 1997-03-04 | 1998-07-01 | 中南工业大学 | Pre-throttle bidirectional hydraulic lock |
| CN102478029A (en) * | 2010-11-23 | 2012-05-30 | 上海安彩智能技术有限公司 | Hydraulic system |
| CN102747948A (en) * | 2012-07-19 | 2012-10-24 | 山河智能装备股份有限公司 | Double-pump hydraulic control loop of key drilling action of cutting drill rig |
| CN103688656A (en) * | 2013-12-19 | 2014-04-02 | 湖北工业大学 | Small water weed cutting machine |
| CN104454705A (en) * | 2014-12-04 | 2015-03-25 | 安徽乐库智能停车设备有限公司 | Safe and stable hydraulic control system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105114385B (en) | 2018-01-09 |
| CN108167251A (en) | 2018-06-15 |
| CN105114385A (en) | 2015-12-02 |
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