CN111028629A - Multifunctional environment-friendly water hydraulic teaching experiment table - Google Patents
Multifunctional environment-friendly water hydraulic teaching experiment table Download PDFInfo
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 131
- 238000002474 experimental method Methods 0.000 title claims abstract description 43
- 239000000049 pigment Substances 0.000 claims description 13
- 230000005540 biological transmission Effects 0.000 abstract description 4
- 238000003912 environmental pollution Methods 0.000 abstract description 3
- 239000003921 oil Substances 0.000 description 8
- 239000012530 fluid Substances 0.000 description 6
- 239000007788 liquid Substances 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000010720 hydraulic oil Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000008399 tap water Substances 0.000 description 2
- 235000020679 tap water Nutrition 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000007306 functionalization reaction Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B23/00—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
- G09B23/06—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics
- G09B23/08—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for statics or dynamics
- G09B23/12—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for statics or dynamics of liquids or gases
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B19/00—Testing; Calibrating; Fault detection or monitoring; Simulation or modelling of fluid-pressure systems or apparatus not otherwise provided for
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/04—Special measures taken in connection with the properties of the fluid
- F15B21/041—Removal or measurement of solid or liquid contamination, e.g. filtering
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Abstract
The invention discloses a multifunctional environment-friendly water hydraulic teaching experiment table, which comprises a motor pump set, a three-position four-way valve A, a water hydraulic motor and a water hydraulic cylinder A, wherein a water inlet of the motor pump set is connected with a water inlet pipe, a water outlet of the motor pump set is connected with a P port of the three-position four-way valve A, an A port of the three-position four-way valve A is respectively connected with a port I of a two-way valve A and a port I of a two-way valve B, a port II of the two-way valve A is sequentially connected with the water hydraulic motor, the two-way valve C and a port B of the three-position four-way valve A, a water inlet and a water outlet A of the water hydraulic cylinder A are connected with a port II of the two-way valve B to push a hydraulic rod of the water hydraulic cylinder A to extend out after water enters from the water inlet and outlet A, and the water inlet and. The invention adopts water as a transmission medium, is economical, energy-saving, green and environment-friendly, solves the problem of environmental pollution caused by oil leakage, and is more convenient to operate and maintain.
Description
Technical Field
The invention belongs to the field of teaching experiment equipment, and particularly relates to a hydraulic teaching experiment table.
Background
At present, hydraulic experiment tables adopted by colleges and universities for hydraulic practice courses are generally hydraulic systems taking hydraulic oil as a transmission medium, and the problems of leakage of oil, overflow of the oil during assembly and disassembly and the like in the practice operation process result in severe environment of an experiment site, inconvenience in operation and difficulty in cleaning and maintenance, so that the enthusiasm and the initiative of student practice and study are reduced. Moreover, the inflammability of the oil liquid can bring about potential safety hazards, and the emission and improper treatment of the waste oil can cause environmental pollution; compared with the two defects of flammability and pollution of hydraulic oil, the water is not only economical and energy-saving, but also green and environment-friendly, and the daily maintenance of a water hydraulic system is simple. Therefore, the hydraulic teaching experiment is more suitable for directly taking water as a working medium.
In addition, the single function is also a serious deficiency of the current oil hydraulic teaching experiment table, the current hydraulic teaching material combines the hydrodynamics and the hydraulic element with the system content, while the traditional teaching experiment table can only complete the experiment of the hydraulic element and the system, but can not complete the classical hydrodynamics experiment such as laminar flow-turbulent flow and the like, because the transparency of the oil is poor, the flowing state of the pipeline oil is difficult to clearly observe.
Disclosure of Invention
Aiming at the defects or improvement requirements of the prior art, the invention provides a multifunctional environment-friendly water hydraulic teaching experiment table, which takes water as a medium, is easy to realize the observation of the state of fluid in a pipeline, and can better meet the requirements of hydraulic teaching experiments through multi-functionalization.
In order to achieve the above object, according to one aspect of the present invention, there is provided a multifunctional environment-friendly water hydraulic teaching experiment table, which is characterized in that the teaching experiment table comprises a motor pump set, a three-position four-way valve a, a water hydraulic motor and a water hydraulic cylinder a, wherein:
the water inlet of the motor pump set is connected with a water inlet pipe, the water outlet of the motor pump set is connected with a P port of a three-position four-way valve A, an A port of the three-position four-way valve A is respectively connected with an I port of a two-way valve A and an I port of a two-way valve B, II ports of the two-way valve A are sequentially connected with a water hydraulic motor, a two-way valve C and a B port of the three-position four-way valve A, a water inlet and a water outlet A of the water hydraulic cylinder A are connected with II ports of the two-way valve B to be used for pushing a hydraulic rod of the water hydraulic cylinder A to stretch out after water enters from the water inlet and outlet A, and the water inlet and the water outlet B of the water hydraulic cylinder A are connected with the B port of the three-position four.
Preferably, the water outlet of the motor-pump unit is further connected with a port I of a two-way valve D, a port II of the two-way valve D is respectively connected with a port I of a laminar flow-turbulent flow transparent display tube and a pigment box, a port II of the laminar flow-turbulent flow transparent display tube is connected with a port I of a valve B, and a port II of the valve B is connected with a pigment water tank.
Preferably, a valve C is arranged on the water inlet pipe.
Preferably, a filter is arranged on the water inlet pipe.
Preferably, the water outlet of the motor-pump unit is also respectively connected with a pressure gauge A, a port I of a throttle valve A and a port I of an overflow valve A, and a port II of the throttle valve A and a port II of the overflow valve A are respectively connected with a drain pipe A.
Preferably, a T port of the three-position four-way valve A is connected with a drainage pipe B, and a flow meter is arranged on the drainage pipe B.
Preferably, a throttle valve B is further arranged between the port II of the two-way valve B and the water inlet and outlet A of the hydraulic cylinder A.
Preferably, the hydraulic system further comprises a three-position four-way valve B and a hydraulic cylinder B, a water outlet of the motor pump group is further connected with a port I of a reducing valve, a port II of the reducing valve is connected with a port P of the three-position four-way valve B, a port A of the three-position four-way valve B is connected with a water inlet and outlet C of the hydraulic cylinder B through a two-way valve E and used for pushing a hydraulic rod of the hydraulic cylinder B to extend out after water enters from the water inlet and outlet C, a port B of the three-position four-way valve B is connected with a water inlet and outlet D of the hydraulic cylinder B through a two-way valve F and used for pushing a hydraulic rod of the hydraulic cylinder B to retract after water enters from the water inlet and outlet D, the hydraulic rod of the hydraulic cylinder B and the hydraulic rod of the hydraulic cylinder A are on the same straight line, and the hydraulic rod of.
Preferably, a T port of the three-position four-way valve B is connected with a port I of the overflow valve B, a port II of the overflow valve B is connected with a drain pipe B, and a flowmeter is arranged on the drain pipe B.
Preferably, a pressure gauge B is further arranged between the pressure reducing valve and the port P of the three-position four-way valve B.
In general, compared with the prior art, the above technical solution contemplated by the present invention can achieve the following beneficial effects:
1) the invention adopts water as a transmission medium, is economical, energy-saving, green and environment-friendly, solves the problem of environmental pollution caused by oil leakage, improves the environment of an experimental site, and is more convenient to operate and maintain.
2) The hydraulic component testing device drives hydraulic components such as the hydraulic motor and the hydraulic cylinder to act through water, and can complete the test of the hydraulic components and the system.
3) The invention adopts the port I of the laminar-turbulent flow transparent display tube and the pigment box to mix water and pigment in the laminar-turbulent flow transparent display tube, can observe the fluid state in the laminar-turbulent flow transparent display tube, and can complete the classical fluid mechanics experiments of laminar flow-turbulent flow and the like
4) The invention can effectively promote the innovation and the popularization of the hydraulic transmission technology, is beneficial to the traditional hydraulic experiment teaching, and improves the enthusiasm and the learning efficiency of student practice courses.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
As shown in fig. 1, a multifunctional environment-friendly water hydraulic teaching experiment table comprises a motor pump set 11, a three-position four-way valve a20, a water hydraulic motor 24 and a water hydraulic cylinder a22, wherein:
the water inlet of the motor-pump set 11 is connected with a water inlet pipe, the water outlet of the motor-pump set 11 is connected with the P port of the three-position four-way valve A20, preferably, the water inlet pipe is provided with a valve C1 and a filter 10, the A port of the three-position four-way valve A20 is respectively connected with the I port of a two-way valve A6 and the I port of a two-way valve B4, the II port of the two-way valve A6 is sequentially connected with the water hydraulic motor 24, the two-way valve C7 and the B port of the three-position four-way valve A20, the water inlet and outlet A of the water hydraulic cylinder A22 is connected with the II port of the two-way valve B4 for pushing the hydraulic rod of the water hydraulic cylinder A22 to extend after water enters from the water inlet and outlet A, preferably, a throttle valve B15 is further arranged between the II port of the two-way valve B15 and the water inlet and outlet A of the water hydraulic cylinder A22, the water inlet and outlet B of the water hydraulic cylinder A22 is connected with the B port B58, in addition, a T port of the three-position four-way valve A20 is connected with a drainage pipe B, and a flow meter 26 is arranged on the drainage pipe B.
Further, the water outlet of the motor-pump set 11 is also connected with a port I of a two-way valve D5, a port II of the two-way valve D5 is respectively connected with a port I of a laminar flow-turbulent flow transparent display tube 19 and a pigment box 18, a port II of the laminar flow-turbulent flow transparent display tube 19 is connected with a port I of a valve B3, and a port II of the valve B3 is connected with a pigment water tank.
Further, the water outlet of the motor-pump set 11 is also respectively connected with a pressure gauge A16, a port I of a throttle valve A14 and a port I of an overflow valve A12, and a port II of the throttle valve A14 and a port II of the overflow valve A12 are respectively connected with a drain pipe A.
Further, the three-position four-way valve B21 and the hydraulic cylinder B23 are further included, the water outlet of the motor-pump set 11 is further connected with the port I of the pressure reducing valve 25, the port II of the pressure reducing valve 25 is connected with the port P of the three-position four-way valve B21, and preferably, a pressure gauge B17 is further arranged between the pressure reducing valve 25 and the port P of the three-position four-way valve B21. An opening A of the three-position four-way valve B21 is connected with a water inlet and outlet C of the hydraulic cylinder B23 through a two-way valve E8 and is used for pushing a hydraulic rod of the hydraulic cylinder B23 to extend after water enters from the water inlet and outlet C, an opening B of the three-position four-way valve B21 is connected with a water inlet and outlet D of the hydraulic cylinder B23 through a two-way valve F9 and is used for pushing the hydraulic rod of the hydraulic cylinder B23 to retract after water enters from the water inlet and outlet D, the hydraulic rod of the hydraulic cylinder B23 and the hydraulic rod of the hydraulic cylinder A22 are in the same straight line, the hydraulic rod of the hydraulic cylinder A22 can apply pressure to the hydraulic rod of the hydraulic cylinder B23 after the hydraulic rod extends, in addition, an opening T of the three-position four-way valve B21 is connected with an opening I of an overflow valve B13, and an opening II of the.
The valves C1, a2 and B3 may be any valves that can be opened or closed, and preferably valves that can regulate flow, such as a stop valve, a regulating valve, a V-ball valve, an angle valve, a needle valve, a butterfly valve or a diaphragm valve.
The two-way valve B4, the two-way valve D5, the two-way valve A6, the two-way valve C7, the two-way valve E8 and the two-way valve F9 are all valves capable of achieving two-way medium circulation, and can be selected from gate valves, ball valves, butterfly valves and the like.
The water inlet of the motor-pump set 11 is connected with a tap water pipe through a filter 10, liquid water is provided for a laboratory bench system through the opening or closing of the valve C1, and the motor-pump set 11 is used as a power source to provide pressure and flow for the water hydraulic cylinder A22, the water hydraulic cylinder B23 and the water hydraulic motor 24.
The pigment box 18 and the laminar-turbulent flow transparent display tube 19 are main working components of a fluid mechanics experiment, and the laminar-turbulent flow experiment is completed by adjusting the flow rate of a pipeline.
The hydraulic cylinder A22, the hydraulic cylinder B23 and the hydraulic motor 24 are executive components of the system and are main working components of a hydraulic component of the experiment table and a system experiment. Preferably, the cylinder body of the hydraulic cylinder A22, the cylinder body of the hydraulic cylinder B23 and the shell of the hydraulic motor 24 are all transparent, and the pipeline in the invention can also be transparent so as to observe the operation condition inside.
The invention can carry out a plurality of groups of experiments, which are as follows:
firstly, the specific steps of the fluid mechanics experiment of laminar flow-turbulent flow are as follows:
1) and opening the valve C1, introducing tap water into the motor pump set 11, starting a power supply of the water hydraulic experiment table, starting the motor pump set 11, adjusting the overflow valve 12 and the throttle valve A14 on an outlet bypass, and controlling the pressure and the flow of a system pipeline.
Secondly, opening the valve A2 and the valve B3 again, closing all the two-way valves, mixing pigment in the pigment box 18 and water flowing through a pipeline into pigment water, flowing to the laminar-turbulent flow transparent display tube 19, and controlling the flow of a system pipeline by adjusting the throttle valve A14;
step three, the opening degree of a valve port of the regulating valve B3 is gradually reduced, when the flow passing through the laminar-turbulent flow transparent display tube 19 is small, an obvious straight line is formed in the tube, and the flowing state at the moment is laminar flow;
and step four, adjusting the opening degree of a valve port of the valve B3 to gradually increase, when the flow passing through the laminar-turbulent flow transparent display tube 19 increases to a certain value, the liquid flow in the tube begins to be disordered, continuously adjusting the opening degree of the valve port of the valve B3, completely mixing the pigment and the water in the transparent display tube at the moment, and ensuring that the flowing state is turbulent flow.
This makes it possible to clearly observe the flow state of the fluid at different flow rates in the laminar-turbulent flow transparent display tube 19.
Secondly, the specific steps of the hydraulic element and system experiment are as follows:
1) when the valve C1, the valve A2, the valve B3, the two-way valve B4, the two-way valve D5, the two-way valve A6, the two-way valve C7, the two-way valve E8 and the two-way valve F9 are closed, the overflow valve 12 is opened to enable the overflow valve 12 to be in an unloading state, the motor-pump set 11 is started, water is discharged from a drain pipe A through the overflow valve 12, the motor-pump set 11 runs in an idle load mode, and at the moment, an unloading experiment of a hydraulic system is completed.
2) And adjusting the overflow valve 12 to enable the output pressure of the motor-pump set 11 to reach an experimental set pressure value, namely completing a pressure regulating experiment of the hydraulic system.
3) The valve A2, the valve B3, the two-way valve A6, the two-way valve C7, the two-way valve E8 and the two-way valve F9 are closed, the valve C1, the two-way valve B4 and the two-way valve D5 are opened, when the three-position four-way valve A20 is controlled to be in the left position, a P port of the three-position four-way valve A20 is communicated with an A port, a B port of the three-position four-way valve A20 is communicated with a T port, and a piston rod of the hydraulic cylinder A; and when the three-position four-way valve A20 is controlled to be positioned at the right position, the port P of the three-position four-way valve 10 is communicated with the port B, the port A is communicated with the port T, and the piston rod of the hydraulic cylinder A22 retracts leftwards.
4) The valve A2, the valve B3, the two-way valve B4, the two-way valve D5, the two-way valve E8 and the two-way valve F9 are closed, the valve C1, the two-way valve A6 and the two-way valve C7 are opened, when the three-position four-way valve A20 is controlled to be in the left position, the P port of the three-position four-way valve A20 is communicated with the A port, the B port of the three-position four-way valve A20 is communicated with the T port, and the hydraulic motor 24 rotates; when the three-position four-way valve A20 is controlled to be in the right position, the port P of the three-position four-way valve A20 is communicated with the port B, the port A is communicated with the port T, and the water hydraulic motor 24 rotates anticlockwise.
5) The valve A2, the valve B3, the two-way valve B4, the two-way valve D5, the two-way valve A6 and the two-way valve C7 are closed, the valve C1, the two-way valve E8 and the two-way valve F9 are opened, when the three-position four-way valve B21 is controlled to be in the left position, a P port of the three-position four-way valve B21 is communicated with an A port, a B port of the three-position four-way valve B21 is communicated with a T port, and a piston rod of the hydraulic cylinder B; and when the three-position four-way valve B21 is controlled to be in the right position, the port P of the three-position four-way valve B21 is communicated with the port B, the port A is communicated with the port T, and the piston rod of the hydraulic cylinder B23 retracts rightwards.
6) The valve C1, the two-way valve B4, the two-way valve D5, the two-way valve E8 and the two-way valve F9 are opened simultaneously, the valve A2, the valve B3, the two-way valve A6 and the two-way valve C7 are closed, the three-position four-way valve A20 and the three-position four-way valve B21 are controlled to be in the left position, the three-position four-way valve A20 and the three-position four-way valve B21 are both provided with a P port communicated with the A port and a B port communicated with the T port, a piston rod of the hydraulic cylinder A22 extends out rightwards, a piston rod of the hydraulic cylinder B23 extends out leftwards, and the hydraulic cylinder A22 and the hydraulic cylinder B23 perform jacking action under the; adjusting the pressure reducing valve 25 to enable the input pressure of the hydraulic cylinder B23 to be smaller than the input pressure of the hydraulic cylinder A22, namely the system outlet pressure is larger than the outlet pressure of the pressure reducing valve 25, at the moment, under the condition that the pressures are unequal and the flow rates are equal, the force output by the hydraulic cylinder A22 is larger than the force output by the hydraulic cylinder B23, and the hydraulic cylinder B23 is pushed to move rightwards; meanwhile, when the overflow valve 13 is adjusted, the hydraulic cylinder B23 loop plays a back pressure role, and the speed of the hydraulic cylinder A22 pushing the hydraulic cylinder B23 to move rightwards to do work can be controlled.
The invention combines the experiment of hydrodynamics and the experiment of the hydraulic element and the hydraulic system, not only can finish the experiment teaching of hydrodynamics and the hydraulic system, but also can improve the teaching field environment, improve the utilization rate of the experiment table and enhance the learning enthusiasm of students.
It will be understood by those skilled in the art that the foregoing is only a preferred embodiment of the present invention, and is not intended to limit the invention, and that any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. The utility model provides a multi-functional environment-friendly water hydraulic pressure teaching experiment platform which characterized in that, includes motor pump package, tribit cross valve A, water hydraulic motor and water hydraulic cylinder A, wherein:
the water inlet of the motor pump set is connected with a water inlet pipe, the water outlet of the motor pump set is connected with a P port of a three-position four-way valve A, an A port of the three-position four-way valve A is respectively connected with an I port of a two-way valve A and an I port of a two-way valve B, II ports of the two-way valve A are sequentially connected with a water hydraulic motor, a two-way valve C and a B port of the three-position four-way valve A, a water inlet and a water outlet A of the water hydraulic cylinder A are connected with II ports of the two-way valve B to be used for pushing a hydraulic rod of the water hydraulic cylinder A to stretch out after water enters from the water inlet and outlet A, and the water inlet and the water outlet B of the water hydraulic cylinder A are connected with the B port of the three-position four.
2. The multifunctional environment-friendly water hydraulic teaching experiment table as claimed in claim 1, wherein the water outlet of the motor-pump set is further connected with a port I of a two-way valve D, a port II of the two-way valve D is respectively connected with a port I of a laminar flow-turbulent flow transparent display tube and a pigment box, a port II of the laminar flow-turbulent flow transparent display tube is connected with a port I of a valve B, and a port II of the valve B is connected with a pigment water tank.
3. The multifunctional environment-friendly water hydraulic teaching experiment table as claimed in claim 1, wherein a valve C is arranged on the water inlet pipe.
4. The multifunctional environment-friendly water hydraulic teaching experiment table as claimed in claim 1, wherein a filter is arranged on the water inlet pipe.
5. The multifunctional environment-friendly water hydraulic teaching experiment table as claimed in claim 1, wherein a water outlet of the motor pump set is further connected with a pressure gauge A, a port I of a throttle valve A and a port I of an overflow valve A respectively, and a port II of the throttle valve A and a port II of the overflow valve A are connected with a drain pipe A respectively.
6. The multifunctional environment-friendly water hydraulic teaching experiment table as claimed in claim 1, wherein a T port of the three-position four-way valve A is connected with a drain pipe B, and a flow meter is arranged on the drain pipe B.
7. The multifunctional environment-friendly water hydraulic teaching experiment table as claimed in claim 1, wherein a throttle valve B is further arranged between the port II of the two-way valve B and the water inlet/outlet A of the hydraulic cylinder A.
8. The multifunctional environment-friendly water hydraulic teaching experiment table as claimed in claim 1, further comprising a three-position four-way valve B and a water hydraulic cylinder B, the water outlet of the motor-pump set is also connected with a port I of a pressure reducing valve, a port II of the pressure reducing valve is connected with a port P of the three-position four-way valve B, the port A of the three-position four-way valve B is connected with the water inlet and outlet C of the hydraulic cylinder B through a two-way valve E, the hydraulic rod of the hydraulic cylinder B is pushed to extend out after water enters from the water inlet and outlet C, the port B of the three-position four-way valve B is connected with the water inlet and outlet D of the hydraulic cylinder B through the two-way valve F, the hydraulic rod of the hydraulic cylinder B is pushed to retract after water enters from the water inlet and outlet D, the hydraulic rod of the hydraulic cylinder B and the hydraulic rod of the hydraulic cylinder A are on the same straight line, and pressure can be applied to the hydraulic rod of the hydraulic cylinder B after the hydraulic rod of the hydraulic cylinder A extends.
9. The multifunctional environment-friendly water hydraulic teaching experiment table as claimed in claim 8, wherein a T port of the three-position four-way valve B is connected with a I port of an overflow valve B, a II port of the overflow valve B is connected with a drainage pipe B, and a flowmeter is arranged on the drainage pipe B.
10. The multifunctional environment-friendly water hydraulic teaching experiment table as claimed in claim 8, wherein a pressure gauge B is further arranged between the pressure reducing valve and the P port of the three-position four-way valve B.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201911319607.5A CN111028629A (en) | 2019-12-19 | 2019-12-19 | Multifunctional environment-friendly water hydraulic teaching experiment table |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911319607.5A CN111028629A (en) | 2019-12-19 | 2019-12-19 | Multifunctional environment-friendly water hydraulic teaching experiment table |
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| CN1838971A (en) * | 2003-06-26 | 2006-09-27 | 先进复生有限责任公司 | Sensor-equipped and algorithm-controlled direct mechanical ventricular assist device |
| CN201177898Y (en) * | 2007-08-24 | 2009-01-07 | 杨成刚 | PLC controlled multifunctional hydraulic experiment bench |
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