CN209778154U - Hydraulic jacking device capable of detecting load and displacement in real time - Google Patents
Hydraulic jacking device capable of detecting load and displacement in real time Download PDFInfo
- Publication number
- CN209778154U CN209778154U CN201822259610.XU CN201822259610U CN209778154U CN 209778154 U CN209778154 U CN 209778154U CN 201822259610 U CN201822259610 U CN 201822259610U CN 209778154 U CN209778154 U CN 209778154U
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- control valve
- hydraulic
- hydraulic cylinder
- displacement
- hydraulic pump
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- 238000006073 displacement reaction Methods 0.000 title claims abstract description 37
- 239000003921 oil Substances 0.000 claims abstract description 37
- 238000011897 real-time detection Methods 0.000 claims abstract description 7
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 4
- 230000001276 controlling effect Effects 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000009365 direct transmission Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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Abstract
The utility model discloses a but hydraulic pressure jacking device of real-time detection load and displacement, include: the hydraulic jacking system comprises a power unit, a hydraulic cylinder and a displacement sensor, wherein the power unit is connected with the hydraulic cylinder through an oil pipe, and the displacement sensor is arranged in the hydraulic cylinder and used for detecting the jacking displacement of the hydraulic cylinder in real time; the power unit includes: the hydraulic pump, the control valve group, the motor and the oil tank; the motor is used for driving the hydraulic pump; the hydraulic pump is connected with the oil tank through an oil pipe; the control valve group comprises a proportional pressure control valve and an electromagnetic valve; the electromagnetic valve is arranged on an oil supply pipeline between the hydraulic pump and the hydraulic cylinder and used for controlling the on-off of the oil supply pipeline; the proportional pressure control valve is arranged at the output end of the hydraulic pump and is used for detecting and adjusting the pressure of hydraulic oil output by the hydraulic pump; and when the oil supply pipeline is a passage, the pressure detected by the proportional pressure control valve is the pressure corresponding to the jacking load of the hydraulic cylinder.
Description
Technical Field
the utility model relates to a construction field in boats and ships propulsion shafting school, concretely relates to but hydraulic pressure jacking device of real-time detection load and displacement.
Background
the requirements of calculation preparation, centering state, limiting conditions, centering calculation models, calculation contents, construction rules, centering inspection and the like of direct transmission and gear transmission propulsion shafting centering of medium and low speed diesel engines are specified in the national marine industry standard CBZ338-2005 marine propulsion shafting centering. The jack-up method specified therein is a method for checking the time load of a bearing after shafting alignment by using a jack installed near the bearing instead of the bearing.
in the known actual operation at present, detection personnel only use the original hand pump and the jack to be combined for operation, and then use a pressure gauge and a dial gauge for reading, so that the operation is complicated, the measured value is extremely inaccurate, and the manual operation is difficult to integrate.
SUMMERY OF THE UTILITY MODEL
in view of this, the utility model provides a but hydraulic pressure jacking device of real-time detection load and displacement can real-time detection jacking load and displacement, realizes the accurate control to hydraulic pressure jacking.
The technical scheme of the utility model is that: a hydraulic jacking device capable of detecting load and displacement in real time comprises: the hydraulic jacking system comprises a power unit, a hydraulic cylinder and a displacement sensor, wherein the power unit is connected with the hydraulic cylinder through an oil pipe, and the displacement sensor is arranged in the hydraulic cylinder and used for detecting the jacking displacement of the hydraulic cylinder in real time;
The power unit includes: the hydraulic pump, the control valve group, the motor and the oil tank;
the motor is used for driving the hydraulic pump;
the hydraulic pump is connected with the oil tank through an oil pipe;
The control valve group comprises a proportional pressure control valve and an electromagnetic valve;
The electromagnetic valve is arranged on an oil supply pipeline between the hydraulic pump and the hydraulic cylinder and used for controlling the on-off of the oil supply pipeline;
The proportional pressure control valve is arranged at the output end of the hydraulic pump and is used for detecting and adjusting the pressure of hydraulic oil output by the hydraulic pump; and when the oil supply pipeline is a passage, the pressure detected by the proportional pressure control valve is the pressure corresponding to the jacking load of the hydraulic cylinder.
as an optimized scheme of the utility model, the switch valve group still includes proportional flow control valve, proportional flow control valve sets up supply oil pipe is last, is used for the adjustment the hydraulic pump to the flow of pneumatic cylinder fuel feeding.
as a preferred scheme of the utility model, the control valve group is mounted on a valve seat, a central hole is arranged in the middle of the valve seat, three through holes communicated with the central hole are arranged on the wall surface of the central hole, one end of the valve seat is fixedly connected with a flange of a motor, and the other end of the valve seat is fixedly connected with a hydraulic pump; a proportional pressure control valve, a proportional flow control valve and an electromagnetic valve are arranged in the through hole of the valve seat; the motor and the hydraulic pump are electrically connected through a central hole in the valve seat.
As an optimized scheme of the utility model, on proportional pressure control valve, proportional flow control valve and displacement sensor were connected to the external control unit external display screen on the control unit, the control unit will the pressure that proportional pressure control valve detected converts into the real-time jacking load of pneumatic cylinder turns into the fuel feeding flow that proportional controller B regulated and control the real-time jacking speed of pneumatic cylinder, the display screen shows the real-time jacking load of pneumatic cylinder, speed and displacement.
has the advantages that:
(1) The utility model adopts the control valve group to control the pressure and flow of the power unit, and realizes the accurate control of the jacking load and jacking displacement of the hydraulic cylinder; the accuracy of data in the shafting alignment process is effectively improved, human errors are reduced, the working strength is reduced, and the working efficiency is improved; and a displacement sensor is arranged in the hydraulic cylinder, so that accurate real-time control of the jacking displacement of the hydraulic cylinder is realized.
(2) The utility model discloses with setting up the centre bore in the middle of the disk seat, set up the through-hole that link up with the centre bore more than two on the pore wall of centre bore, closely unite hydraulic pump, motor, proportional pressure control valve, electromagnetism seat valve and proportional flow control valve and be in the same place, reduce the installation volume.
drawings
fig. 1 is the schematic diagram of the hydraulic jacking device of the utility model.
Fig. 2 is the connection diagram of the hydraulic jacking device of the utility model.
Fig. 3 is a schematic structural diagram of the power unit of the present invention.
Wherein, 1-hydraulic pump, 2-control valve group, 3-motor, 4-oil tank, 5-oil pipe, 6-hydraulic cylinder, 7-proportional pressure control valve, 8-proportional flow control valve, 9-electromagnetic valve
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings by way of examples.
This embodiment provides a but hydraulic pressure jacking device of real-time detection load and displacement, can real-time detection jacking load and displacement, realizes the accurate control to hydraulic pressure jacking.
As shown in fig. 1-3, the hydraulic jacking device comprises a power unit, a hydraulic cylinder 6 and a displacement sensor, wherein the power unit is connected with the hydraulic cylinder 6 through an oil pipe 5, the displacement sensor is arranged inside the hydraulic cylinder 6 and can detect the jacking displacement of the hydraulic cylinder in real time, and the measurement error is less than +/-10 microns.
The power unit comprises a hydraulic pump 1, a control valve group 2, a motor 3 and an oil tank 4; the motor 3 is arranged on the oil tank 4, and the base of the motor is connected to the oil tank 4; the motor 3 is used for providing drive power for the hydraulic pump 1, stores fluid in the oil tank 4, and the hydraulic pump 1 is connected with the oil tank 4 through oil pipe.
The control valve group 2 comprises a valve seat, and a proportional pressure control valve 7, a proportional flow control valve 8 and an electromagnetic valve 9 which are arranged on the valve seat, wherein a central hole is formed in the middle of the valve seat, more than two through holes communicated with the central hole are formed in the wall surface of the central hole, one end of the valve seat is fixedly connected with a flange plate of the motor 3, the other end of the valve seat is fixedly connected with the hydraulic pump 1, and the motor 3 is electrically connected with the hydraulic pump 1 through the central;
A proportional pressure control valve 7, a proportional flow control valve 8 and an electromagnetic valve 9 are arranged in the through hole; the proportional flow control valve 8 and the electromagnetic valve 9 are connected with the hydraulic pump 1 in series and then are connected with the hydraulic cylinder 6 through the oil pipe 5, the electromagnetic valve 9 is electrically opened, and hydraulic oil in the hydraulic pump 1 enters the hydraulic cylinder 6 through the proportional flow control valve 8; a proportional pressure control valve 7 is connected in parallel with the hydraulic pump 1 for sensing and controlling the pressure at the outlet of the hydraulic pump 1.
Wherein, the hydraulic pump 1 adopts a high-quality plunger pump and is used for sucking a continuous stable oil source from the oil tank 4; a pressure sensor is arranged in the proportional pressure control valve 7, when the electromagnetic valve 9 is not opened, the pressure sensor is used for detecting the pressure at the outlet of the hydraulic pump 1, when the electromagnetic valve 9 is opened, the pressure at the outlet of the hydraulic pump 1 is equal to the pressure of the hydraulic cylinder 6 for jacking the set load, and at the moment, the pressure sensor of the proportional pressure control valve 7 is used for detecting the pressure of the hydraulic cylinder 6 for jacking the load;
The proportional pressure control valve 7 and the proportional flow control valve 8 are respectively internally provided with a proportional controller A and a proportional controller B which are respectively used for adjusting the pressure and the flow, wherein the proportional controller A can automatically calculate and convert the jacking load of the actual hydraulic cylinder according to a signal fed back by the pressure sensor; the proportional controller B can regulate and control the flow, automatically calculate and convert the flow into the jacking speed of the actual hydraulic cylinder, and further regulate and control different jacking displacements.
The proportional pressure control valve 7, the proportional flow control valve 8, the electromagnetic seat valve 9 and the displacement sensor are all connected to an external control unit, and the control unit draws a jacking curve of the hydraulic cylinder according to jacking load and displacement.
Specifically, the method comprises the following steps: connecting a power unit with a hydraulic cylinder 6, starting a motor 3 in a no-load mode, operating for a certain time, enabling an input signal of a proportional pressure control valve 7 to be minimum, adjusting a proportional flow valve 8 to be minimum in opening, enabling the system to be free of pressure, and enabling the hydraulic cylinder 6 to be free of action; the current passing through the proportional pressure control valve 7 and the proportional flow control valve 8 is gradually increased, the numerical values fed back by the displacement sensor and the pressure sensor of the proportional pressure control valve 7 are collected through the built-in proportional controller A, the built-in proportional controller B and the external control unit, programming operation and data processing are carried out, and the display screen connected to the external control unit displays the pressure values corresponding to different voltages (currents) and the jacking displacement and load of the hydraulic cylinder 6.
In summary, the above is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (4)
1. The utility model provides a but hydraulic pressure jacking device of real-time detection load and displacement which characterized in that includes: the device comprises a power unit, a hydraulic cylinder (6) and a displacement sensor, wherein the power unit is connected with the hydraulic cylinder (6) through an oil pipe (5), and the displacement sensor is arranged inside the hydraulic cylinder (6) and used for detecting the jacking displacement of the hydraulic cylinder (6) in real time;
The power unit includes: the hydraulic pump (1), the control valve group (2), the motor (3) and the oil tank (4);
the motor (3) is used for driving the hydraulic pump (1);
The hydraulic pump (1) is connected with the oil tank (4) through an oil pipe;
the control valve group (2) comprises a proportional pressure control valve (7) and an electromagnetic valve (9);
the electromagnetic valve (9) is arranged on an oil supply pipeline between the hydraulic pump (1) and the hydraulic cylinder (6) and is used for controlling the on-off of the oil supply pipeline;
The proportional pressure control valve (7) is arranged at the output end of the hydraulic pump (1) and is used for detecting and adjusting the pressure of hydraulic oil output by the hydraulic pump (1); when the oil supply pipeline is a passage, the pressure detected by the proportional pressure control valve (7) is the pressure corresponding to the jacking load of the hydraulic cylinder (6).
2. The hydraulic jacking device capable of detecting load and displacement in real time as claimed in claim 1, wherein said control valve group (2) further comprises a proportional flow control valve (8), said proportional flow control valve (8) being provided on said oil supply line for adjusting the flow rate of oil supplied from said hydraulic pump (1) to said hydraulic cylinder (6).
3. the hydraulic jacking device capable of detecting load and displacement in real time as claimed in claim 2, wherein the control valve group (2) is mounted on a valve seat, a central hole is formed in the middle of the valve seat, three through holes communicated with the central hole are formed in the wall surface of the central hole, one end of the valve seat is fixedly connected with a flange of the motor (3), and the other end of the valve seat is fixedly connected with the hydraulic pump (1); a proportional pressure control valve (7), a proportional flow control valve (8) and an electromagnetic valve (9) are arranged in the through hole of the valve seat; the motor (3) and the hydraulic pump (1) are electrically connected through a central hole on the valve seat.
4. The hydraulic jacking device capable of detecting load and displacement in real time as claimed in claim 2, wherein said proportional pressure control valve (7), proportional flow control valve (8) and displacement sensor are connected to an external control unit, a display screen is externally connected to said control unit, said control unit converts the pressure detected by said proportional pressure control valve (7) into the real-time jacking load of said hydraulic cylinder (6), converts the oil supply flow regulated and controlled by a proportional controller B into the real-time jacking speed of said hydraulic cylinder (6), and said display screen displays the real-time jacking load, speed and displacement of said hydraulic cylinder (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822259610.XU CN209778154U (en) | 2018-12-29 | 2018-12-29 | Hydraulic jacking device capable of detecting load and displacement in real time |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822259610.XU CN209778154U (en) | 2018-12-29 | 2018-12-29 | Hydraulic jacking device capable of detecting load and displacement in real time |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209778154U true CN209778154U (en) | 2019-12-13 |
Family
ID=68791385
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822259610.XU Expired - Fee Related CN209778154U (en) | 2018-12-29 | 2018-12-29 | Hydraulic jacking device capable of detecting load and displacement in real time |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209778154U (en) |
-
2018
- 2018-12-29 CN CN201822259610.XU patent/CN209778154U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191213 |
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| CF01 | Termination of patent right due to non-payment of annual fee |