CN201982398U - Electrohydraulic push rod - Google Patents
Electrohydraulic push rod Download PDFInfo
- Publication number
- CN201982398U CN201982398U CN2011200090480U CN201120009048U CN201982398U CN 201982398 U CN201982398 U CN 201982398U CN 2011200090480 U CN2011200090480 U CN 2011200090480U CN 201120009048 U CN201120009048 U CN 201120009048U CN 201982398 U CN201982398 U CN 201982398U
- Authority
- CN
- China
- Prior art keywords
- push rod
- electrohydraulic push
- way
- valve
- clutch release
- 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.)
- Expired - Fee Related
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- 238000000034 method Methods 0.000 abstract description 8
- 230000008901 benefit Effects 0.000 abstract description 5
- 238000012423 maintenance Methods 0.000 abstract description 5
- 230000008569 process Effects 0.000 abstract description 2
- 230000002349 favourable effect Effects 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 24
- 239000012530 fluid Substances 0.000 description 3
- 230000000670 limiting effect Effects 0.000 description 3
- 230000002950 deficient Effects 0.000 description 2
- 239000002828 fuel tank Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000002596 correlated effect Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
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Abstract
An electrohydraulic push rod comprises a motor (10) encapsulated in a casing, a two-way pump (11) driven by the motor and a hydraulic lock (6), wherein the two-way pump is connected to a rod cavity and a rodless cavity of a working cylinder (1) through a pipeline via the hydraulic lock; and a one-way throttling valve (3) is arranged on an oil line of the rod cavity of the working cylinder and is positioned outside the casing. The maintenance and fault treatment can be carried out during the working process of the electrohydraulic push rod, so that weight born by the working cylinder can still be in the original working state without generating risks, which greatly facilitates the engineer operation, effectively improves the efficiency of engineer operation and remarkably optimizes the maintenance work of the electrohydraulic push rod. Besides, under the additional arrangement of a balance valve, the electrohydraulic push rod can work more stable and have higher reliability. The electrohydraulic push rod has the advantages of prevalent practicability, simple structure, low cost and favorable performances.
Description
Technical field
The utility model relates to a kind of powered actuation mechanism, particularly, relates to a kind of Electrohydraulic push rod.
Background technique
Electrohydraulic push rod is as a kind of powered actuation mechanism that can realize linear reciprocating motion, because it has advantages such as stable working, reliability height, high speed impact power are little, therefore replaced traditional cylinder, oil cylinder and electric pushrod etc. to a certain extent, and in engineer operation, obtained to use widely.
Electric liquid element linkage structure is similar mostly in the existing Electrohydraulic push rod, disclosed Electrohydraulic push rod among for example Chinese utility model patent CN2489132Y, it generally all is by by motor-driven oil hydraulic pump, hydraulic oil is fed to clutch release slave cylinder via hydraulic element such as hydraulic lock, thereby the push rod that drives clutch release slave cylinder is realized to-and-fro motion.
But the Electrohydraulic push rod of prior art still exists two 1 apparent in view defectives, first, in the Electrohydraulic push rod working procedure, for example effect has weight on the push rod, if Electrohydraulic push rod breaks down, need will just can carry out the maintenance of fault after the weight unloading, operating process bothers very much; The second, existing Electrohydraulic push rod is still steady inadequately in the course of the work, remains further to be improved.
In view of the problems referred to above of prior art, need a kind of novel Electrohydraulic push rod.
The model utility content
Technical problem to be solved in the utility model provides a kind of Electrohydraulic push rod, to overcome at least one defective of prior art, make this Electrohydraulic push rod break down in the course of the work, need not unloaded loads can overhaul safely, thereby improves the efficient of engineer operation.
The utility model the technical problem that will further solve a kind of Electrohydraulic push rod is provided, this Electrohydraulic push rod not only has above-mentioned advantage, and work is more steady, reliability is higher.
Above-mentioned purpose is achieved through the following technical solutions: Electrohydraulic push rod, comprise the motor that is encapsulated in the housing, by this motor-driven two-way pump and hydraulic lock, described two-way pump is connected in the rod chamber and the rodless cavity of clutch release slave cylinder via described hydraulic lock by pipeline, wherein, the oil circuit of the rod chamber of described clutch release slave cylinder is provided with one-way throttle valve, and this one-way throttle valve is positioned at the outside of described housing.
In addition, also be provided with equilibrium valve on the oil circuit of the rod chamber of described clutch release slave cylinder, the control oil channel of this equilibrium valve is connected in the oil circuit of the rodless cavity of described clutch release slave cylinder, and this equilibrium valve is positioned at described outside.
Preferably, described two-way pump is a double-direction gearpump.
By technique scheme of the present utility model, because described Electrohydraulic push rod is provided with one-way throttle valve (also claiming throttling stop valve) on the oil circuit of clutch release slave cylinder rod chamber, therefore in the Electrohydraulic push rod working procedure, if Electrohydraulic push rod breaks down, can be by regulating one-way throttle valve, thereby make the oil circuit sealing of rod chamber realize pressurize, even therefore take the housing of Electrohydraulic push rod apart, overhaul, fault treatment, the weight of clutch release slave cylinder carrying still can keep former working state, and can not produce danger, and this is very easy to engineer operation, the betterment works operating efficiency makes the Maintenance and Repair work of Electrohydraulic push rod significantly optimize effectively.In addition, under optimal way, owing to set up equilibrium valve on the oil circuit of clutch release slave cylinder rod chamber, the control oil channel of this equilibrium valve is connected in the oil circuit of rodless cavity, therefore can make described Electrohydraulic push rod not only have above-mentioned advantage, and work is steady more, reliability is higher.Electrohydraulic push rod of the present utility model has general practicability, and it is simple in structure, with low cost, has good performance.
Description of drawings
Fig. 1 is the principle schematic of the Electrohydraulic push rod of the utility model embodiment;
Fig. 2 is the principle schematic of the Electrohydraulic push rod of the further preferred implementation of the utility model.
Among the figure: 1 clutch release slave cylinder; 2 push rods; 3 one-way throttle valves; 4 first one-way damper valves; 5 second one-way damper valves; 6 hydraulic lock; 7 first one-way valves; 8 second one-way valves; 9 relief valves; 10 two-way pumps; 11 motors; 12 filters; 13 the 3rd one-way valves; 14 the 4th one-way valves; 15 fuel tanks; 16 equilibrium valves
Embodiment
The embodiment of the utility model Electrohydraulic push rod is described below in conjunction with accompanying drawing.
Referring to shown in Figure 1, the basic technical scheme of the utility model Electrohydraulic push rod is: two-way pump 11 and hydraulic lock 6 that this Electrohydraulic push rod comprises the motor 10 that is encapsulated in the housing, driven by this motor 10, described two-way pump 11 is connected in the rod chamber and the rodless cavity of clutch release slave cylinder 1 via described hydraulic lock 6 by pipeline, wherein, the oil circuit of the rod chamber of described clutch release slave cylinder 1 is provided with one-way throttle valve 3 (also claiming throttling stop valve), and this one-way throttle valve 3 is positioned at the outside of described housing.
On the basis of above-mentioned basic technical scheme, preferably, also be provided with equilibrium valve 16 on the oil circuit of the rod chamber of described clutch release slave cylinder 1, the control oil channel of this equilibrium valve 16 is connected in the oil circuit of the rodless cavity of described clutch release slave cylinder 1, and this equilibrium valve 16 is positioned at described outside.
Need to prove that at this oil circuit of the enclosure interior of Electrohydraulic push rod except the description of technique scheme, obviously also comprises some conventional hydraulic element, for example pressure limiting element, filter etc. to those skilled in the art knownly.The Connecting format of these hydraulic element is diversified; for example CN2489132Y has just provided a kind of concrete pipeline Connecting format; those skilled in the art can easily carry out the function of multiple simple variant to realize being correlated with in technical conceive scope of the present utility model, these simple variant all belong to protection domain of the present utility model.
Below be that example is described a kind of concrete hydraulic element Connecting format with Fig. 1 and Fig. 2, but protection domain of the present utility model is not limited thereto.
Referring to illustrated in figures 1 and 2, in Fig. 1, the hydraulic element linkage structure of one-way throttle valve 3 belows is linkage structures of the routine of existing Electrohydraulic push rod, these elements are installed in the housing of Electrohydraulic push rod substantially, wherein, two-way pump 10 preferred double-direction gearpumps, this two-way pump 10 is driven by motor 11, two hydraulic fluid ports of two-way pump 10 are connected with the 4th one-way valve 14 and filter 12 via the 3rd one-way valve 13 respectively, this filter is communicated with fuel tank 15, can see that from Fig. 1 and Fig. 2 the import of the 3rd one-way valve 13 and the 4th one-way valve 14 links to each other, two hydraulic fluid ports of two-way pump 10 then are connected respectively to the outlet of the 3rd one-way valve 13 and the 4th one-way valve 14.First one-way valve 7 and 8 outlets of second one-way valve interconnect, and first one-way valve 7 and second one-way valve 8 that should connect are in parallel with two-way pump 10, on the pipeline between first one-way valve 7 and second one-way valve 8, be connected with relief valve 9, this mainly plays the pressure limiting effect, the charge oil pressure overrate of general two-way pump 10, relief valve 9 overflow pressure limitings.Two hydraulic fluid ports of two-way valve 10 are connected in hydraulic lock 6 (being the double hydraulic control one-way valve), this hydraulic lock 6 is connected in the rod chamber and the rodless cavity of clutch release slave cylinder 1 via first one-way damper valve 4 (being the valve of one-way valve and damping hole parallel form) and second one-way damper valve 5 (mainly playing unidirectional metering function) respectively, thereby the push rod 2 that can drive clutch release slave cylinder 1 moves back and forth.
There is various ways in the linkage structure of electric liquid element in the above-mentioned Electrohydraulic push rod, therefore the technical solution of the utility model is not limited to above-mentioned Connecting format, as mentioned above, unlike the prior art be that main points of the present utility model are: on the oil circuit of the rod chamber of clutch release slave cylinder 1, be connected with one-way throttle valve 3.In addition, under optimal way, also be connected with equilibrium valve 16 on the oil circuit of the rod chamber of clutch release slave cylinder 1.
By last description as seen, because Electrohydraulic push rod of the present utility model is provided with one-way throttle valve 3 on the oil circuit of clutch release slave cylinder rod chamber, therefore in the Electrohydraulic push rod working procedure, if Electrohydraulic push rod breaks down, can be by regulating one-way throttle valve 3, thereby make the oil circuit sealing of rod chamber realize pressurize, even therefore take the housing of Electrohydraulic push rod apart, overhaul, fault treatment, the weight of clutch release slave cylinder 1 carrying still can keep former working state, and can not produce danger, and this is very easy to engineer operation, the betterment works operating efficiency makes the Maintenance and Repair work of Electrohydraulic push rod significantly optimize effectively.In addition, under optimal way, owing to set up equilibrium valve 16 on the oil circuit of clutch release slave cylinder 1 rod chamber, the control oil channel of this equilibrium valve 16 (X among Fig. 2) is connected in the oil circuit of rodless cavity, therefore can make described Electrohydraulic push rod not only have above-mentioned advantage, and work is steady more, reliability is higher.Electrohydraulic push rod of the present utility model has general practicability, and it is simple in structure, with low cost, has good performance.
Each concrete technical characteristics described in above-mentioned embodiment can carry out combination in any by any suitable manner, and it falls within the scope disclosed in the utility model equally.Simultaneously, also can carry out combination in any between the various mode of execution of the present utility model, as long as it is without prejudice to thought of the present utility model, it should be considered as content disclosed in the utility model equally.In addition; the utility model is not limited to the detail in the above-mentioned mode of execution; in technical conceive scope of the present utility model, can carry out multiple simple variant to the technical solution of the utility model, these simple variant all belong to protection domain of the present utility model.Protection domain of the present utility model is defined by the claims.
Claims (3)
1. Electrohydraulic push rod, the two-way pump (11) and the hydraulic lock (6) that comprise the motor (10) that is encapsulated in the housing, drive by this motor (10), described two-way pump (11) is connected in the rod chamber and the rodless cavity of clutch release slave cylinder (1) via described hydraulic lock (6) by pipeline, it is characterized in that, the oil circuit of the rod chamber of described clutch release slave cylinder (1) is provided with one-way throttle valve (3), and this one-way throttle valve (3) is positioned at the outside of described housing.
2. Electrohydraulic push rod according to claim 1, it is characterized in that, also be provided with equilibrium valve (16) on the oil circuit of the rod chamber of described clutch release slave cylinder (1), the control oil channel of this equilibrium valve (16) is connected in the oil circuit of the rodless cavity of described clutch release slave cylinder (1), and this equilibrium valve (16) is positioned at described outside.
3. Electrohydraulic push rod according to claim 1 is characterized in that, described two-way pump (10) is a double-direction gearpump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200090480U CN201982398U (en) | 2011-01-13 | 2011-01-13 | Electrohydraulic push rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200090480U CN201982398U (en) | 2011-01-13 | 2011-01-13 | Electrohydraulic push rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201982398U true CN201982398U (en) | 2011-09-21 |
Family
ID=44609860
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200090480U Expired - Fee Related CN201982398U (en) | 2011-01-13 | 2011-01-13 | Electrohydraulic push rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201982398U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102400967A (en) * | 2011-11-03 | 2012-04-04 | 中联重科股份有限公司 | Cartridge valve troubleshooting method and cartridge valve assembly |
| CN103470940A (en) * | 2013-09-25 | 2013-12-25 | 北京航天发射技术研究所 | Control valve system used for absorbing and discharging oil of transfer case lubrication oil pump in forward and reverse directions |
| CN106015171A (en) * | 2016-07-18 | 2016-10-12 | 深圳霸特尔防爆科技有限公司 | Multi-station hydraulic cylinder interlocking and hydraulic cylinder oil supplementing and oil draining mechanism |
-
2011
- 2011-01-13 CN CN2011200090480U patent/CN201982398U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102400967A (en) * | 2011-11-03 | 2012-04-04 | 中联重科股份有限公司 | Cartridge valve troubleshooting method and cartridge valve assembly |
| CN102400967B (en) * | 2011-11-03 | 2015-01-28 | 中联重科股份有限公司 | Cartridge valve troubleshooting method and cartridge valve assembly |
| CN103470940A (en) * | 2013-09-25 | 2013-12-25 | 北京航天发射技术研究所 | Control valve system used for absorbing and discharging oil of transfer case lubrication oil pump in forward and reverse directions |
| CN103470940B (en) * | 2013-09-25 | 2015-11-18 | 北京航天发射技术研究所 | For the control valve system of the forward and reverse suction oil of transfer case lubricating pump |
| CN106015171A (en) * | 2016-07-18 | 2016-10-12 | 深圳霸特尔防爆科技有限公司 | Multi-station hydraulic cylinder interlocking and hydraulic cylinder oil supplementing and oil draining mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110921 Termination date: 20150113 |
|
| EXPY | Termination of patent right or utility model |