CN111536084B - Water inlet and outlet valve control device of hydraulic dynamometer - Google Patents
Water inlet and outlet valve control device of hydraulic dynamometer Download PDFInfo
- Publication number
- CN111536084B CN111536084B CN202010437359.0A CN202010437359A CN111536084B CN 111536084 B CN111536084 B CN 111536084B CN 202010437359 A CN202010437359 A CN 202010437359A CN 111536084 B CN111536084 B CN 111536084B
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- water inlet
- cylinder
- backup pad
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 33
- 230000002787 reinforcement Effects 0.000 claims abstract description 6
- 239000003921 oil Substances 0.000 description 34
- 230000004044 response Effects 0.000 description 8
- 230000009471 action Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 230000003014 reinforcing effect Effects 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 238000005429 filling process Methods 0.000 description 2
- 239000010720 hydraulic oil Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000011982 device technology Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000010729 system oil Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- 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
- F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
- F15B1/02—Installations or systems with accumulators
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L3/00—Measuring torque, work, mechanical power, or mechanical efficiency, in general
- G01L3/24—Devices for determining the value of power, e.g. by measuring and simultaneously multiplying the values of torque and revolutions per unit of time, by multiplying the values of tractive or propulsive force and velocity
Abstract
A water inlet and outlet valve control device of a hydraulic dynamometer relates to a water inlet and outlet valve control device. The invention solves the problems of high cost and poor deviation resistance of the existing water inlet and outlet valve control device. The utility model discloses a hydraulic dynamometer, including fixing frame, fixed frame, hydraulic power meter control system and hydraulic power meter control system, the swing jar subassembly is installed to the upper end of fixing frame, be provided with the reinforcement strip that upwards extends to one side on the fixing frame upper end outer wall on swing jar subassembly right side, be provided with the compact heap on the fixing frame upper end outer wall of reinforcement strip rear side, be provided with the backup pad on the upper end outer wall of compact heap, be provided with the hydro-cylinder on the upper end outer wall of backup pad, hydro-cylinder and backup pad pass through fixing bolt fixed connection, control system is used for controlling the water inlet, the play water valve of water tank, and this novel hydraulic power meter control system adopts integrated hydraulic servo system control, has from independent oil source, and work is easily normalized, reduces work load and relevant work's complexity greatly. The hydraulic dynamometer is used for controlling the water inlet and outlet valves of the hydraulic dynamometer.
Description
Technical Field
The invention belongs to the technical field of dynamometers, and particularly relates to a water inlet and outlet valve control device of a hydraulic dynamometer.
Background
The hydraulic dynamometer is widely applied to the field of power testing of various prime movers at present, can measure the output power of the prime movers as the effective load of the load test of the prime movers, and is matched with the prime movers to perform various working condition point transformation tests, when the hydraulic dynamometer measures the power of the prime movers, the absorbed energy enables the water temperature to rise, and the water with the raised temperature is discharged out of the dynamometer through the drain valve.
The existing water inlet and outlet valve control device technology of the hydraulic dynamometer has the following problems: at present, the common water inlet and outlet valve actuating mechanisms in China comprise a pneumatic actuating mechanism and an electric actuating mechanism. Pneumatic actuators, while safe and easy to operate, require additional valve positioners and additional supply of air sources, add significant expense and require time for air to fill the cylinder and empty when large pneumatic actuators are used, thus being slow in response, poor in control accuracy, and poor in compressibility of the air resulting in poor deflection resistance.
Disclosure of Invention
The invention aims to provide a water inlet and outlet valve control device of a hydraulic dynamometer, which aims to solve the problems of high cost and poor deviation resistance of the water inlet and outlet valve control device in the background technology.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a water inlet and outlet valve controlling means of hydraulic dynamometer, includes mount and swing jar subassembly, swing jar subassembly is installed to the upper end of mount, be provided with the reinforcing strip that upwards stretches to one side on the mount upper end outer wall on swing jar subassembly right side, be provided with the compact heap on the mount upper end outer wall of reinforcing strip rear side, be provided with the backup pad on the upper end outer wall of compact heap, be provided with the hydro-cylinder on the upper end outer wall of backup pad, hydro-cylinder and backup pad pass through fixing bolt fixed connection, the upper end outer wall of compact heap passes backup pad and hydro-cylinder fixed connection, compact heap and hydro-cylinder pass through lock nut fixed connection, backup pad and mount pass through supporting rib fixed connection, be provided with fixed rack on the lower extreme outer wall of compact heap, be provided with the link on the front end outer wall of fixed rack, the front end outside of link has cup jointed the fixed bolster, be provided with the pivot on the link rear end outer wall of fixed bolster, be provided with the semicircle gear on the lower extreme outer wall of backup pad, be provided with the bottom plate on the upper end outer wall of semicircle gear downside.
Preferably, the support ribs are arranged in two, the two support ribs are arranged on the right side of the swing cylinder assembly, and the bottom plate and the fixed support are fixedly connected through the support ribs.
Preferably, a butterfly valve is arranged on the outer wall of the right end of the swing cylinder assembly, the swing cylinder assembly is connected with the butterfly valve through a spline coupler, the swing cylinder assembly is controlled to rotate by a servo valve so as to control the butterfly valve to rotate, and the fixed rack is arranged on the outer wall of the upper end of the spline coupler.
Preferably, external teeth are arranged on the radial outer circle of the spline coupler, a fixed rack arranged on the end of the piston rod of the oil cylinder is arranged above the external teeth, and the external teeth and the fixed rack are meshed to realize mechanical locking.
Preferably, a connecting pipe is arranged on the outer wall of the right end of the fixing frame, and the right end of the connecting pipe is connected with a self-contained oil supply pump station.
Preferably, the internal full-stroke adjustment speed of the swinging cylinder assembly is less than one second, the control precision is less than zero percent three, the swinging cylinder assembly is provided with a sensor, and the control precision of the angle sensor is less than zero percent three.
Compared with the prior art, the invention provides the water inlet and outlet valve control device of the hydraulic dynamometer, which has the following beneficial effects:
The invention aims to provide a novel hydraulic dynamometer water inlet and outlet valve control device, a control system is used for controlling water inlet and outlet valves of a water tank, the novel hydraulic dynamometer control system is controlled by an integrated hydraulic servo system, the hydraulic dynamometer is easy to normalize from independent oil sources, the workload and the complexity of related work are greatly reduced, the adjustment performance is greatly improved, the failure rate is reduced, the control effect of high precision and high speed can be achieved, the control device comprises a self-contained oil supply pump station and an electrohydraulic actuator, the former water inlet valve actuator is provided with an electric actuator and a pneumatic actuator, the control precision of the electric actuator is 1 percent, the whole course action time is 12 seconds, the opening change of the water inlet valve is difficult to keep up with the requirement of rotating speed due to the slow response action of the electric actuator, the whole-course action time is less than 1s, the control precision is 0.3%, the valve position feedback precision is less than 0.03%, the response time and the control precision performance are far higher than those of an electric actuator, the servo proportional valve is used as a control element, the response time is only 20 milliseconds, the energy accumulator, the servo proportional valve and the swinging cylinder are matched, the quick response characteristic of the self-contained electrohydraulic actuator is ensured, in practical application, the actuator is provided with a set of closed-loop control system to form a quick closed loop, the response is quick, the requirements of quick response and quick action of a unit are met, meanwhile, the closed-loop system formed by an upper computer and an angle sensor also ensures the control precision of the actuator on the valve position, the condition that the valve is suddenly unloaded in practical application is considered, and the valve is in a fully-opened state in a short time (1 s) is met, the energy accumulator and accessory equipment thereof are designed and added in the pump station system, so as to meet the instantaneous maximum flow requirement of the system and the quick-acting function.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate and together with the embodiments of the invention and do not constitute a limitation to the invention, and in which:
FIG. 1 is a schematic diagram of the pump station principle structure of a water inlet and outlet valve control device of a hydraulic dynamometer;
FIG. 2 is a schematic diagram of the front partial internal structure of a control device for the water inlet and outlet valves of the hydraulic dynamometer according to the present invention;
FIG. 3 is a schematic diagram of a partial internal structure of a side surface of a water inlet/outlet valve control device of a hydraulic dynamometer according to the present invention;
Fig. 4 is a schematic diagram of the hydraulic principle structure of a water inlet and outlet valve control device of a hydraulic dynamometer according to the present invention;
in the figure: 1. an oil cylinder; 2. a support plate; 3. a compaction block; 4. a connecting frame; 5. a shaft pin; 6. a fixed bracket; 7. a support rib; 8. a bottom plate; 9. a fixed rack; 10. a semicircular gear; 11. a fixing bolt; 12. reinforcing strips; 13. a lock nut; 14. a fixing frame; 15. and a swing cylinder assembly.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-4, the present invention provides a technical solution: the utility model provides a water inlet and drainage valve controlling means of hydraulic dynamometer, including mount 14 and swing jar subassembly 15, swing jar subassembly 15 is installed to the upper end of mount 14, the inside full stroke regulation speed of swing jar subassembly 15 is less than one second, control accuracy is less than three hundredths, be provided with the sensor on the swing jar subassembly 15, angle sensor control accuracy is less than three hundredths, its response time and control accuracy performance are far higher than electric actuator, make swing jar subassembly 15 use more rapidly, be provided with the reinforcement strip 12 that upwards stretches to one side on the mount 14 upper end outer wall on swing jar subassembly 15 right side, be provided with compact heap 3 on the mount 14 upper end outer wall of reinforcement strip 12 rear side, be provided with backup pad 2 on the upper end outer wall of compact heap 3, be provided with hydro-cylinder 1 on the upper end outer wall of backup pad 2, hydro-cylinder 1 and backup pad 2 pass through fixing bolt 11 fixed connection, be provided with the connecting pipe on the right-hand member outer wall of connecting pipe, the right-hand member of connecting pipe is connected with self-contained type oil feed pump station, use with oil feed oil through self-contained type oil feed pump station, the upper end outer wall 3 passes through backup pad 1 and backup pad 3 and the last fixed connection of backup pad 1, through the fixed connection of support bar 13 and the fixed connection of backup pad 3 has the compact heap 3, through the fixed connection 13 is provided with the fixed nut on the fixed support bar is connected with the backup pad 3. A butterfly valve is arranged on the outer wall of the right end of a swing cylinder assembly 15, the swing cylinder assembly 15 is connected with the butterfly valve through a spline coupling, the swing cylinder assembly 15 is controlled to rotate by a servo valve so as to control the butterfly valve to rotate, a fixed rack 9 is arranged on the outer wall of the upper end of the spline coupling, a closed loop is formed by the feedback of an angle sensor and the control of the servo valve, the butterfly valve can be guaranteed to be stabilized to a certain balance position, an external tooth is arranged on the radial outer circle of the spline coupling, a fixed rack 9 arranged on the piston rod end of an oil cylinder 1 is arranged above the external tooth, the external tooth and the fixed rack 9 are meshed to realize mechanical locking, in the working state, a locking cylinder piston rod is fully retracted, the external tooth and the rack are separated, the swing cylinder can rotate, in the system power failure state, the locking cylinder piston rod is fully extended out, the external tooth and the rack are meshed to realize mechanical locking, a valve position is realized, a connecting frame 4 is arranged on the outer wall of the front end of the fixed rack 9, a fixed bracket 6 is sleeved with the front end of the fixed bracket 6, a shaft pin 5 is arranged on the outer wall of the rear end of the connecting frame 4 inside the fixed bracket, external tooth 9 is provided with an external tooth, the lower end of the fixed rack 9 is provided with an external tooth 10, and two semicircular support ribs 7 are connected with a supporting rib 7 on the lower end of the fixed bracket 7, and the two semicircular support ribs are connected with one another through the supporting rib 7, and the two semicircular support ribs 7 are arranged on the lower side of the supporting rib 7, and the two semicircular support rib 7 are connected with one another by the supporting rib 7.
The working principle and the using flow of the invention are as follows: after the hydraulic dynamometer is installed, the working principle of the water inlet and outlet valve control device of the novel hydraulic dynamometer is that the hydraulic dynamometer is controlled by adopting an integrated hydraulic servo system, oil is supplied from an independent oil source, a hydraulic oil station adopts a scheme of centralized oil supply, a hydraulic oil source part adopts a pump station for oil supply, an energy accumulator group is arranged, a water cooling and filtering system is additionally arranged on a pump source part, the pump source part is provided with a control system, the remote control start and stop of an oil pump, the system pressure and the temperature alarm lamp function can be realized, and an integrated alarm signal can be sent to an upper computer, when the hydraulic dynamometer is used, after the gear pump of the hydraulic pump is started, antiwear oil is sucked from an oil tank through an oil filter, pressure oil after coming out of the gear pump enters the energy accumulator through an oil station outlet component (a stop valve, a one-way valve, an oil filter and an overflow valve), namely the energy accumulator is filled with oil, in the oil filling process, the flow of the system can be gradually reduced, the oil pressure starts to rise, when the oil pressure rises to the high limit of the working pressure of the system, the electromagnetic directional valve is electrified, the gear pump outlet is communicated with the oil tank, the gear pump enters an idle running state, the system oil supply is completed by the energy accumulator, in the working state of oil supply of only the energy accumulator, the oil pressure of the energy accumulator is gradually consumed, when the oil pressure falls to the low limit of the working pressure of the system, the electromagnetic directional valve is deenergized, the gear pump outlet is communicated with the energy accumulator, the oil enters the oil filling process again, the oil cylinder 1 is provided with a rod cavity for feeding pressure oil, the rodless cavity is used for discharging oil, the piston rod is fully retracted, the locking cylinder leaves a locking station, the hydraulic control one-way valve is opened, the swinging cylinder is controlled to rotate and rotate by the servo valve, the swinging cylinder can realize clockwise rotation and anticlockwise rotation, and opening angles of the butterfly valve are controlled.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (2)
1. The utility model provides a water power meter's water inlet and outlet valve controlling means, includes mount (14) and swing jar subassembly (15), its characterized in that: the upper end of mount (14) is installed swing jar subassembly (15), be provided with on mount (14) upper end outer wall on swing jar subassembly (15) right side upwards obliquely stretch reinforcement strip (12), be provided with compact heap (3) on mount (14) upper end outer wall of reinforcement strip (12) rear side, be provided with backup pad (2) on the upper end outer wall of compact heap (3), be provided with hydro-cylinder (1) on the upper end outer wall of backup pad (2), hydro-cylinder (1) and backup pad (2) pass through fixing bolt (11) fixed connection, the upper end outer wall of compact heap (3) passes backup pad (2) and with hydro-cylinder (1) fixed connection, compact heap (3) and hydro-cylinder (1) pass through locking nut (13) fixed connection, be provided with fixed rack (9) on the lower extreme outer wall of compact heap (3), be provided with link (4) on the front end outer wall of fixed rack (9), link (4) are provided with on the front end outer wall of link (4), link (6) are connected with in a fixed connection, the inside of link (6) is cup jointed to the outer wall (6), a semicircular gear (10) is arranged on the outer wall of the lower end of the fixed rack (9), and a bottom plate (8) is arranged on the outer wall of the upper end of a fixed frame (14) at the lower side of the semicircular gear (10);
The two support ribs (7) are arranged in total, the two support ribs (7) are arranged on the right side of the swinging cylinder assembly (15), and the bottom plate (8) and the fixed support (6) are fixedly connected through the support ribs (7);
The right end outer wall of the swing cylinder assembly (15) is provided with a butterfly valve, the swing cylinder assembly (15) is connected with the butterfly valve through a spline coupler, the swing cylinder assembly (15) is controlled to rotate by a servo valve so as to control the butterfly valve to rotate, and the fixed rack (9) is arranged on the upper end outer wall of the spline coupler;
The spline coupler is characterized in that external teeth are arranged on the radial outer circle of the spline coupler, a fixed rack (9) arranged on the piston rod end of the oil cylinder (1) is arranged above the external teeth, and the external teeth are meshed with the fixed rack (9) to realize mechanical locking.
2. The water inlet and outlet valve control device of a hydraulic dynamometer according to claim 1, wherein: the right-hand member outer wall of mount (14) is provided with the connecting pipe, the right-hand member of connecting pipe is connected with from holding formula oil feed pump station.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010437359.0A CN111536084B (en) | 2020-05-21 | 2020-05-21 | Water inlet and outlet valve control device of hydraulic dynamometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010437359.0A CN111536084B (en) | 2020-05-21 | 2020-05-21 | Water inlet and outlet valve control device of hydraulic dynamometer |
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| Publication Number | Publication Date |
|---|---|
| CN111536084A CN111536084A (en) | 2020-08-14 |
| CN111536084B true CN111536084B (en) | 2024-04-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010437359.0A Active CN111536084B (en) | 2020-05-21 | 2020-05-21 | Water inlet and outlet valve control device of hydraulic dynamometer |
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| CN (1) | CN111536084B (en) |
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| CN110332161A (en) * | 2019-07-17 | 2019-10-15 | 上海衡拓船舶设备有限公司 | Stabilizer two-stage pressure-regulating and the servo hydraulic system of load oil circuit switching |
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Family Cites Families (2)
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| US6904885B2 (en) * | 2001-08-24 | 2005-06-14 | Lance Ian Osband | Osband super inductionexhaustion valveshaft' engine system, V-Type, flat-type, single-type, multi-cylinder four-cycle engine(s) |
| CN102937013B (en) * | 2012-10-30 | 2015-07-29 | 上海联创实业有限公司 | Headframe type long stroke hydraulic pumping unit |
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2020
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|---|---|---|---|---|
| CN101074685A (en) * | 2007-07-11 | 2007-11-21 | 杭州和利时自动化有限公司 | Self-capacitance electrohydraulic executor |
| CN103438265A (en) * | 2013-08-16 | 2013-12-11 | 上海汇益控制系统股份有限公司 | Adjusting type hydraulic control butterfly valve actuator |
| CN105588716A (en) * | 2015-12-15 | 2016-05-18 | 浙江理工大学 | Torsion detection fatigue testing machine for driven plate assembly |
| CN105945982A (en) * | 2015-12-25 | 2016-09-21 | 北京航空航天大学 | Hydraulic swing cylinder and potential sensor closed-loop control based modular robot driving joint |
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| CN111536084A (en) | 2020-08-14 |
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