CN113296492A - Testing device for variable pump power controller - Google Patents
Testing device for variable pump power controller Download PDFInfo
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- CN113296492A CN113296492A CN202110532733.XA CN202110532733A CN113296492A CN 113296492 A CN113296492 A CN 113296492A CN 202110532733 A CN202110532733 A CN 202110532733A CN 113296492 A CN113296492 A CN 113296492A
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- 238000012360 testing method Methods 0.000 title claims abstract description 32
- 238000006073 displacement reaction Methods 0.000 claims abstract description 28
- 230000000149 penetrating effect Effects 0.000 claims abstract description 4
- 238000005265 energy consumption Methods 0.000 abstract description 2
- 239000010720 hydraulic oil Substances 0.000 description 7
- 238000001514 detection method Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B23/00—Testing or monitoring of control systems or parts thereof
- G05B23/02—Electric testing or monitoring
- G05B23/0205—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults
- G05B23/0208—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterized by the configuration of the monitoring system
- G05B23/0213—Modular or universal configuration of the monitoring system, e.g. monitoring system having modules that may be combined to build monitoring program; monitoring system that can be applied to legacy systems; adaptable monitoring system; using different communication protocols
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/24—Pc safety
- G05B2219/24065—Real time diagnostics
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Reciprocating Pumps (AREA)
- Control Of Positive-Displacement Pumps (AREA)
Abstract
The invention discloses a testing device of a variable pump power controller, which comprises a U-shaped seat, wherein a fixed seat is arranged in the middle of an inner cavity of the U-shaped seat, a shell is symmetrically arranged between the fixed seat and two side walls of the U-shaped seat, a variable piston capable of horizontally sliding is arranged in the shell, a movable cavity vertically penetrating through the shell is also arranged on the shell, and a power controller for driving the variable piston in the shell to horizontally move is arranged above the shell; the inner cavity of the U-shaped seat is horizontally provided with two groups of sliding rods which are axially parallel to the variable piston and penetrate through the fixed seat, and the sliding rods are provided with two groups of sliding blocks which are respectively positioned at two sides of the fixed seat in a sliding manner; vertical arms perpendicular to the two groups of variable pistons in the shell are symmetrically arranged on the two groups of variable pistons in the shell, and the lower ends of the two groups of vertical arms penetrate through a movable cavity in the shell and are respectively connected with two groups of sliding blocks; distancers are symmetrically arranged on two side walls of the U-shaped seat, and the two groups of distancers respectively detect the displacement of the two groups of sliding blocks. The invention has simple and compact structure, convenient test and low energy consumption, and can quickly obtain the test result.
Description
Technical Field
The invention relates to a detection device, in particular to a test device of a variable pump power controller.
Background
The swash plate angle of the variable pump is changed, the flow of the variable pump can be adjusted, the swash plate of the variable pump is hinged with the variable piston, therefore, the change of the swash plate angle is controlled by the displacement of the variable piston, the displacement of the variable piston is controlled by the power controller, when the load pressure interface of the power controller injects hydraulic oil with different pressures, the displacement of the variable piston is different, so that the variable piston drives the inclination angle of the swash plate to be different, and therefore, the flow of the variable pump is also different.
Therefore, in order to detect whether the performance of the power controller meets the working condition requirements of a user or not by reflecting the performance of the power controller through the flow rate when hydraulic oil with different pressures is injected into a load pressure interface of the power controller corresponding to the flow rate of the variable pump at the moment, the existing detection method is to directly install the variable pump equipped with the power controller on a large-scale hydraulic test bed for testing, and directly obtain the flow rate of the variable pump through computer induction detection on the hydraulic test bed, but the testing mode has the following defects: the variable pump structure is great, it is heavy, install the variable pump on the hydraulic test bench, the operation is inconvenient, and the variable piston stroke range on the different discharge capacity variable pumps is different, consequently when testing other discharge capacity variable pumps, need change other discharge capacity variable pumps on the hydraulic test bench, and the variable pump structure is great, it is heavy, lead to the change of different discharge capacity variable pumps to go on rapidly, in addition, the variable pump is before experimental, need preheat, the pump body preheats back for a period, the last result just can be regarded as to the data that the computer on the hydraulic test bench responded to, the time of obtaining data is long, can't obtain fast, test time is long, and required drive is high-power motor, power consumption is big.
From the above, the variable displacement of the variable piston and the variable displacement of the swash plate of the variable pump are related, so that the displacement of the variable piston determines the flow rate of the variable pump, the variable displacement of the variable piston is detected and the detected data is transmitted to the computer of the hydraulic test bed, the inclination angle of the swash plate can be calculated according to the internal system of the computer, the flow rates of the variable pumps with different displacement can be calculated according to the inclination angle of the swash plate, and whether the performance of the power controller matched with the variable pump meets the requirements of the working conditions is judged by judging whether the flow rate reaches the standard, therefore, aiming at the defects of the above test mode, the test device is designed, which can judge the performance of the power controller of the variable pump by detecting the displacement of the variable piston when the load pressure interface of the power controller is filled with hydraulic oil with different pressures, and the requirement of driving of a high-power motor is not needed, and the power consumption is reduced.
Disclosure of Invention
The present invention is directed to a testing apparatus for a variable displacement pump power controller, so as to solve the problems mentioned in the background art.
In order to solve the technical problems, the invention adopts the technical scheme that:
a testing device for a variable pump power controller comprises a U-shaped seat, wherein a fixed seat is arranged in the middle of an inner cavity of the U-shaped seat, a shell is symmetrically arranged between the fixed seat and two side walls of the U-shaped seat, a variable piston capable of sliding horizontally is arranged in the shell, a movable cavity vertically penetrating through the shell is further arranged on the shell, and a power controller for driving the variable piston in the shell to move horizontally is arranged above the shell;
the inner cavity of the U-shaped seat is horizontally provided with two groups of sliding rods which are axially parallel to the variable piston and penetrate through the fixed seat, and the sliding rods are provided with two groups of sliding blocks which are respectively positioned at two sides of the fixed seat in a sliding manner;
vertical arms perpendicular to the two groups of variable pistons in the shell are symmetrically arranged on the two groups of variable pistons in the shell, and the lower ends of the two groups of vertical arms penetrate through a movable cavity in the shell and are respectively connected with the two groups of sliding blocks;
and distance measuring instruments are symmetrically arranged on two side walls of the U-shaped seat, and the two distance measuring instruments respectively detect the displacement of the two groups of sliding blocks.
Furthermore, the power controller adopts a power valve, and a shifting fork on the power valve is movably connected with the variable piston and is used for driving the variable piston to horizontally slide in the shell.
Furthermore, the range finder is electrically connected with a peripheral computer and transmits the induced slide block displacement to the computer, and the computer calculates the hydraulic flow data of the variable pump corresponding to different displacements.
Furthermore, the range finder selects a high-precision range finder with the precision of 0.01mm grade, and the measuring frequency is more than 10 Hz.
The invention has the beneficial effects that:
the invention provides a testing device of a variable pump power controller, which has simple and compact structure and convenient operation, does not need to adopt a large hydraulic test bed for experiment, reduces the testing cost and energy consumption, obtains a testing result quickly, reduces the traditional preheating process, the testing device can be suitable for power controllers corresponding to variable pumps with various displacements, when hydraulic oil with pressure is injected into a load pressure interface of the power controller, the displacement of the piston is changed, then the displacement data detected by the distance measuring instrument is transmitted to a computer of the hydraulic test bed, the inclination angle of the swash plate can be calculated according to the internal system of the computer, therefore, the flow rate of the matched variable pump can be calculated when the load pressure interface of the power controller is filled with hydraulic oil with different pressures, and judging whether the performance of the corresponding power controller meets the working condition requirement at the moment according to whether the obtained flow data reaches the standard.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
FIG. 1 is a cross-sectional elevation view of the present invention.
In the figure: 1. u-shaped seat, 2, fixing base, 3, casing, 4, variable piston, 5, activity chamber, 6, power controller, 7, slide bar, 8, slider, 9, vertical arm, 10, distancer.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1, the invention provides a testing device for a variable pump power controller, which comprises a U-shaped seat 1, wherein a fixed seat 2 is arranged in the middle of an inner cavity of the U-shaped seat 1, a shell 3 is symmetrically arranged between the fixed seat 2 and two side walls of the U-shaped seat 1, a variable piston 4 capable of horizontally sliding is arranged inside the shell 3, a movable cavity 5 vertically penetrating through a body of the shell 3 is also arranged on the shell 3, and a power controller 6 for driving the variable piston 4 inside the shell to horizontally move is arranged above the body of the shell 3;
a slide bar 7 which is axially parallel to the variable piston 4 and penetrates through the fixed seat 2 is horizontally arranged in the inner cavity of the U-shaped seat 1, and two groups of slide blocks 8 which are respectively positioned at two sides of the fixed seat 2 are arranged on the slide bar 7 in a sliding manner;
vertical arms 9 perpendicular to the variable pistons 4 are symmetrically arranged on the two groups of variable pistons 4 in the shell 3, and the lower ends of the two groups of vertical arms 9 penetrate through the movable cavity 5 on the shell 3 and are respectively connected with two groups of sliding blocks 8;
In this embodiment, the power controller 6 is a power valve, and a shifting fork on the power valve is movably connected with the variable piston 4 and is used for driving the variable piston 4 to horizontally slide inside the housing 3.
In this embodiment, the distance meter 10 is electrically connected to a peripheral computer, and transmits the displacement of the slider 8 sensed by the distance meter to the computer, and the computer determines whether the performance of the corresponding power controller meets the requirement of the working condition by calculating the hydraulic flow data of the variable displacement pump corresponding to different displacements and by determining whether the flow data meets the requirement of the working condition.
In this embodiment, the range finder 10 is a high-precision range finder with a precision of 0.01mm, and the measurement frequency is greater than 10 Hz.
The working principle is as follows:
hydraulic oil with pressure is injected into a load pressure interface of the power controller 6, so that the variable piston 4 moves horizontally, the variable piston 4 drives the sliding block 8 to move horizontally along the guide direction of the sliding rod 7 through the vertical arm 9, therefore, the displacement of the sliding block 8 is equal to that of the variable piston 4, the displacement of the variable piston 4 can be known by detecting the displacement of the sliding block through the range finder 10, the range finder 10 transmits the detected displacement data to a computer of a hydraulic test bed, the inclination angle of the swash plate of the variable pump can be calculated according to an internal system of the computer, therefore, the flow of the variable pump matched when the load pressure interface of the power controller 6 injects the hydraulic oil with different pressures can be calculated, and whether the performance of the corresponding power controller meets the working condition requirement at the moment is judged according to whether the obtained flow data reaches the standard or not.
The above-described embodiments of the present invention should not be construed as limiting the scope of the present invention, and any modifications, equivalents, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.
Claims (4)
1. The testing device of the variable pump power controller is characterized by comprising a U-shaped seat (1), wherein a fixed seat (2) is arranged in the middle of an inner cavity of the U-shaped seat (1), a shell (3) is symmetrically arranged between the fixed seat (2) and two side walls of the U-shaped seat (1), a variable piston (4) capable of sliding horizontally is arranged inside the shell (3), a movable cavity (5) vertically penetrating through the shell (3) is further arranged on the shell (3), and a power controller (6) driving the variable piston (4) inside the shell (3) to move horizontally is arranged above the shell (3);
a sliding rod (7) which is axially parallel to the variable piston (4) and penetrates through the fixed seat (2) is horizontally arranged in the inner cavity of the U-shaped seat (1), and two groups of sliding blocks (8) which are respectively positioned at two sides of the fixed seat (2) are arranged on the sliding rod (7) in a sliding manner;
vertical arms (9) perpendicular to the variable pistons (4) in the two groups of shells (3) are symmetrically arranged on the variable pistons, and the lower ends of the two groups of vertical arms (9) penetrate through the movable cavity (5) in the shell (3) and are respectively connected with the two groups of sliding blocks (8);
distancers (10) are symmetrically arranged on two side walls of the U-shaped seat (1), and the two distancers (10) respectively detect the displacement of the two groups of sliding blocks (8).
2. The testing device of the variable pump power controller according to claim 1, wherein the power controller (6) adopts a power valve, and a shifting fork on the power valve is movably connected with the variable piston (4) and is used for driving the variable piston (4) to horizontally slide in the shell (3).
3. The testing device of the variable pump power controller according to claim 1, wherein the distance measuring instrument (10) is electrically connected with an external computer and transmits the displacement of the slide block (8) sensed by the distance measuring instrument to the computer, and the computer calculates the variable pump hydraulic flow data corresponding to different displacements.
4. The testing device of the variable pump power controller according to claim 1 or 3, characterized in that the range finder (10) is a high-precision range finder with a precision of 0.01mm grade, and the measuring frequency is more than 10 Hz.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110532733.XA CN113296492A (en) | 2021-05-17 | 2021-05-17 | Testing device for variable pump power controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110532733.XA CN113296492A (en) | 2021-05-17 | 2021-05-17 | Testing device for variable pump power controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113296492A true CN113296492A (en) | 2021-08-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110532733.XA Pending CN113296492A (en) | 2021-05-17 | 2021-05-17 | Testing device for variable pump power controller |
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| CN (1) | CN113296492A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201828400U (en) * | 2010-07-14 | 2011-05-11 | 朱留存 | Electromagnetic valve and valve body performance detection device for automatic transmission |
| CN102878152A (en) * | 2012-10-12 | 2013-01-16 | 中联重科股份有限公司 | Power control method and control device of hydraulic system and hydraulic system |
| CN103775322A (en) * | 2014-01-24 | 2014-05-07 | 浙江大学 | Sensing feedback programmable servo variable hydraulic pump |
| CN206321414U (en) * | 2016-12-20 | 2017-07-11 | 赛克思液压科技股份有限公司 | A kind of axial variable plunger pump test device for controlling valve |
| CN111694338A (en) * | 2020-05-13 | 2020-09-22 | 贵州电网有限责任公司 | Energy storage power utilization side primary frequency modulation static test system and test analysis method |
| CN112345868A (en) * | 2020-11-16 | 2021-02-09 | 西安宝力电子科技有限公司 | Device and method for detecting parameters of solid power controller |
-
2021
- 2021-05-17 CN CN202110532733.XA patent/CN113296492A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201828400U (en) * | 2010-07-14 | 2011-05-11 | 朱留存 | Electromagnetic valve and valve body performance detection device for automatic transmission |
| CN102878152A (en) * | 2012-10-12 | 2013-01-16 | 中联重科股份有限公司 | Power control method and control device of hydraulic system and hydraulic system |
| CN103775322A (en) * | 2014-01-24 | 2014-05-07 | 浙江大学 | Sensing feedback programmable servo variable hydraulic pump |
| CN206321414U (en) * | 2016-12-20 | 2017-07-11 | 赛克思液压科技股份有限公司 | A kind of axial variable plunger pump test device for controlling valve |
| CN111694338A (en) * | 2020-05-13 | 2020-09-22 | 贵州电网有限责任公司 | Energy storage power utilization side primary frequency modulation static test system and test analysis method |
| CN112345868A (en) * | 2020-11-16 | 2021-02-09 | 西安宝力电子科技有限公司 | Device and method for detecting parameters of solid power controller |
Non-Patent Citations (1)
| Title |
|---|
| 严杰: "一种变量泵斜盘电液伺服控制***研究", 《中国制造业信息化》 * |
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Application publication date: 20210824 |
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