CN210637317U - Electrohydraulic push rod hydraulic control device - Google Patents
Electrohydraulic push rod hydraulic control device Download PDFInfo
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- CN210637317U CN210637317U CN201921314199.XU CN201921314199U CN210637317U CN 210637317 U CN210637317 U CN 210637317U CN 201921314199 U CN201921314199 U CN 201921314199U CN 210637317 U CN210637317 U CN 210637317U
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Abstract
The utility model belongs to the technical field of electro-hydraulic push rod hydraulic system control, in particular to an electro-hydraulic push rod hydraulic control device, which mainly aims to provide an electro-hydraulic push rod hydraulic control device and effectively avoids the normal operation of an electro-hydraulic push rod under the condition that a main hydraulic control system fails, and provides an electro-hydraulic push rod hydraulic control device which comprises a hydraulic oil tank and an oil pump motor, wherein a bidirectional gear oil pump is connected and arranged at the front end of the oil pump motor, a hydraulic reversing valve is connected and arranged on the bidirectional gear oil pump, and a push rod execution oil cylinder is connected and arranged on the hydraulic reversing valve; still parallelly connected between switching-over valve that surges and the push rod execution hydro-cylinder is provided with supplementary hydraulic means, this novel structural design's electric liquid push rod liquid accuse device, the effectual economic loss and the incident that has avoided electric liquid push rod liquid accuse system to become invalid and cause have improved the economic benefits of enterprise.
Description
Technical Field
The utility model belongs to the technical field of control of electro-hydraulic push rod hydraulic systems; in particular to an electro-hydraulic push rod hydraulic control device.
Background
The electro-hydraulic push rod is a hydraulic drive manipulator integrating machine, electricity and liquid, is suitable for linear reciprocating push-pull or reciprocating rotation for a certain angle movement, can also be used in places needing to ascend, descend or clamp a workpiece, and can realize centralized or automatic control in remote dangerous areas; the material is widely applied to the departments of metallurgy, mine, electric power, coal, machinery, traffic, grain, chemical industry, cement, water conservancy, building materials, transportation and the like; the electro-hydraulic push rod mainly comprises an actuating mechanism, a hydraulic control valve group and a power source; the electro-hydraulic push rod can adopt various structural forms according to the field installation space and the use condition of a user; in the using process, the motor drives the bidirectional hydraulic pump to positively and negatively output pressure oil through positive and negative rotation, and the pressure oil is sent to the oil cylinder through the hydraulic control valve, so that the reciprocating motion of the piston rod is effectively realized; however, due to the factors of the operating environment of the electro-hydraulic push rod and the problems of improper manual operation and maintenance, the phenomenon of failure of the hydraulic control device can occur after the electro-hydraulic push rod is used for a long time, particularly, in the process that the electro-hydraulic push rod is connected with important valve opening and closing equipment in the production and processing process, the system of the opening and closing valve can be directly failed, the normal production of the whole system can be seriously affected, and serious economic loss and safety accidents are caused, so that the novel electro-hydraulic push rod hydraulic control device is provided, and is very necessary.
Disclosure of Invention
The utility model discloses an inventive purpose:
the hydraulic control device is mainly used for effectively ensuring the hydraulic control characteristic of the electro-hydraulic push rod in the normal use process, effectively avoiding the normal operation of the electro-hydraulic push rod under the condition that a main hydraulic control system fails, effectively ensuring the normal production process of a system of an enterprise using the electro-hydraulic push rod, effectively avoiding the economic loss and safety accidents caused by the failure of the electro-hydraulic push rod hydraulic control system, and effectively improving the economic benefit of the enterprise.
The technical scheme of the utility model is that:
the electro-hydraulic push rod hydraulic control device comprises a hydraulic oil tank and an oil pump motor, wherein a bidirectional gear oil pump is connected and arranged at the front end of the oil pump motor, a hydraulic reversing valve is connected and arranged on the bidirectional gear oil pump, and a push rod execution oil cylinder is connected and arranged on the hydraulic reversing valve; an auxiliary hydraulic device is also arranged in parallel between the hydraulic reversing valve and the push rod execution oil cylinder.
And oil passages of the bidirectional gear oil pump are provided with first oil absorption one-way valves.
The hydraulic reversing valve is also provided with a bidirectional hydraulic lock and an overflow valve respectively.
The auxiliary hydraulic device comprises a manual plunger pump communicated with a hydraulic oil tank, an oil suction one-way valve II and an oil discharge one-way valve are respectively arranged at the front end and the rear end of the manual plunger pump, a manual reversing valve is further connected and arranged at the front end of the oil discharge one-way valve, and the manual reversing valve is connected with a push rod execution oil cylinder through an oil way.
The manual reversing valve is a manual three-position four-way reversing valve.
A filter is also arranged between the hydraulic oil tank and the oil absorption one-way valve II.
The utility model has the advantages that:
this novel structural design's electric liquid push rod hydraulic control device, the effectual hydraulic control characteristic of electric liquid push rod in normal use process of having guaranteed not only, the effectual normal operating of electric liquid push rod under the condition that main hydraulic control system became invalid of having avoided moreover, the effectual normal production process of system who has guaranteed electric liquid push rod use enterprise, the effectual economic loss and the incident of having avoided electric liquid push rod hydraulic control system to become invalid and cause, the effectual economic benefits who improves the enterprise.
Drawings
Fig. 1 is a schematic view of the hydraulic control device of the present invention.
In the figure; 1 is a hydraulic oil tank; 2 is an oil pump motor; 3 is a bidirectional gear oil pump; 4 is a hydraulic change valve; 5 is a push rod execution oil cylinder; 6 is an auxiliary hydraulic device; 7 is a first oil absorption one-way valve; 8 is a bidirectional hydraulic lock; 9 is an overflow valve; 10 is a manual plunger pump; 11 is an oil absorption one-way valve II; 12 is an oil discharge one-way valve; 13 is a manual reversing valve; and 14 is a filter.
Detailed Description
The following detailed description of embodiments of the present invention is made with reference to the accompanying drawings.
As shown in fig. 1, an electro-hydraulic push rod hydraulic control device is provided, which comprises a hydraulic oil tank 1 and an oil pump motor 2, wherein a bidirectional gear oil pump 3 is connected to the front end of the oil pump motor, a hydraulic reversing valve 4 is connected to the bidirectional gear oil pump, and a push rod execution oil cylinder 5 is connected to the hydraulic reversing valve; an auxiliary hydraulic device 6 is also arranged in parallel between the hydraulic reversing valve and the push rod execution oil cylinder.
And oil passages of the bidirectional gear oil pump are provided with oil absorption one-way valves I7.
The hydraulic reversing valve is also provided with a bidirectional hydraulic lock 8 and an overflow valve 9 respectively.
The auxiliary hydraulic device comprises a manual plunger pump 10 communicated with a hydraulic oil tank, an oil suction one-way valve II 11 and an oil discharge one-way valve 12 are respectively arranged at the front end and the rear end of the manual plunger pump, a manual reversing valve 13 is further connected and arranged at the front end of the oil discharge one-way valve, and the manual reversing valve is connected with a push rod execution oil cylinder through an oil way.
The manual reversing valve is a manual three-position four-way reversing valve.
And a filter 14 is also arranged between the hydraulic oil tank and the oil suction one-way valve II.
The electro-hydraulic push rod hydraulic control device with the novel structural design is novel and unique in structure, hydraulic oil is conveyed into the bidirectional gear oil pump through the arranged oil pump motor, the arranged bidirectional gear oil pump conveys liquid through volume change of a working space generated in the mutual meshing process by virtue of two or more gears sealed in a shell, forward and reverse rotation operation can be effectively realized, and equal oil supply can be realized in the same direction when a pump shaft rotates forwards and reversely; meanwhile, the one-way delivery of the oil way is ensured by arranging the oil suction one-way valve in the oil supply process; the bidirectional gear oil pump is connected with a hydraulic reversing valve, the hydraulic reversing valve is a reversing valve for changing the position of a valve core by utilizing pressure oil of a control oil way, and the push rod can be effectively driven to perform telescopic motion of the oil cylinder through the arrangement of the hydraulic reversing valve; meanwhile, a bidirectional hydraulic lock is arranged in the liquid path system, and a loop is provided with the bidirectional hydraulic lock, so that the reversing valve can be stopped at any position within a specified stroke range and can be self-locked, and the output force can be effectively kept unchanged; meanwhile, an overflow valve is also arranged in the liquid path system; when a main hydraulic control device of the electro-hydraulic push rod fails, in the telescopic motion process of the push rod execution oil cylinder, an auxiliary hydraulic device arranged between a hydraulic reversing valve and the push rod execution oil cylinder in parallel can be used for realizing the telescopic motion process of the push rod execution oil cylinder, in the specific design process, a manual plunger pump is connected and arranged on a hydraulic oil tank and mainly comprises a pump body, a plunger positioned in a plunger cavity of the pump body, a crank used for driving the plunger and a control valve communicated with the plunger cavity; in the using process, hydraulic oil can be introduced into the manual reversing valve through the oil suction one-way valve II and the oil discharge one-way valve in a manual operation mode; the manual reversing valve pushes the push rod to execute the oil cylinder to perform the telescopic operation process, so that economic loss and safety accidents caused by failure of an electro-hydraulic push rod hydraulic control system are effectively avoided, the manual reversing valve designed in the use process can adopt a manual three-position four-way reversing valve, the electro-hydraulic push rod hydraulic control device with the novel structural design not only effectively ensures the hydraulic control characteristic of the electro-hydraulic push rod in the normal use process, but also effectively avoids the normal operation of the electro-hydraulic push rod under the condition that the main hydraulic control system fails, the normal production process of the system of an enterprise using the electro-hydraulic push rod is effectively ensured, the economic loss and safety accidents caused by failure of the electro-hydraulic push rod hydraulic control system are effectively avoided, and the economic benefit of the enterprise is effectively improved.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
The above description is only illustrative of the present invention, and is not intended to limit the scope of the present invention, and any person skilled in the art can make equivalent changes and modifications without departing from the spirit and principles of the present invention, which should fall within the protection scope of the present invention.
Claims (6)
1. The utility model provides an electricity liquid push rod hydraulic control device, includes hydraulic tank and oil pump motor, its characterized in that: the front end of an oil pump motor is connected with a bidirectional gear oil pump, the bidirectional gear oil pump is connected with a hydraulic reversing valve, and the hydraulic reversing valve is connected with a push rod execution oil cylinder; an auxiliary hydraulic device is also arranged in parallel between the hydraulic reversing valve and the push rod execution oil cylinder.
2. The electro-hydraulic push rod hydraulic control device of claim 1, wherein: and oil passages of the bidirectional gear oil pump are provided with first oil absorption one-way valves.
3. The electro-hydraulic push rod hydraulic control device of claim 1, wherein: the hydraulic reversing valve is also provided with a bidirectional hydraulic lock and an overflow valve respectively.
4. The electro-hydraulic push rod hydraulic control device of claim 1, wherein: the auxiliary hydraulic device comprises a manual plunger pump communicated with a hydraulic oil tank, an oil suction one-way valve II and an oil discharge one-way valve are respectively arranged at the front end and the rear end of the manual plunger pump, a manual reversing valve is further connected and arranged at the front end of the oil discharge one-way valve, and the manual reversing valve is connected with a push rod execution oil cylinder through an oil way.
5. The electro-hydraulic push rod hydraulic control device of claim 4, wherein: the manual reversing valve is a manual three-position four-way reversing valve.
6. The electro-hydraulic push rod hydraulic control device of claim 4, wherein: a filter is also arranged between the hydraulic oil tank and the oil absorption one-way valve II.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921314199.XU CN210637317U (en) | 2019-08-14 | 2019-08-14 | Electrohydraulic push rod hydraulic control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921314199.XU CN210637317U (en) | 2019-08-14 | 2019-08-14 | Electrohydraulic push rod hydraulic control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210637317U true CN210637317U (en) | 2020-05-29 |
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ID=70796684
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921314199.XU Active CN210637317U (en) | 2019-08-14 | 2019-08-14 | Electrohydraulic push rod hydraulic control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210637317U (en) |
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2019
- 2019-08-14 CN CN201921314199.XU patent/CN210637317U/en active Active
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