CN109538464B - Pump assembly multifunctional performance testing device and corresponding testing method - Google Patents
Pump assembly multifunctional performance testing device and corresponding testing method Download PDFInfo
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- CN109538464B CN109538464B CN201910038266.8A CN201910038266A CN109538464B CN 109538464 B CN109538464 B CN 109538464B CN 201910038266 A CN201910038266 A CN 201910038266A CN 109538464 B CN109538464 B CN 109538464B
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- 238000012360 testing method Methods 0.000 title claims abstract description 99
- 230000007246 mechanism Effects 0.000 claims abstract description 91
- 230000006835 compression Effects 0.000 claims abstract description 22
- 238000007906 compression Methods 0.000 claims abstract description 22
- 238000009434 installation Methods 0.000 claims abstract description 11
- 230000005540 biological transmission Effects 0.000 claims description 11
- 230000000903 blocking effect Effects 0.000 claims description 11
- 230000001105 regulatory effect Effects 0.000 claims description 6
- 230000003584 silencer Effects 0.000 claims description 5
- 238000012545 processing Methods 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 description 9
- 230000008569 process Effects 0.000 description 6
- 238000005259 measurement Methods 0.000 description 5
- 238000003032 molecular docking Methods 0.000 description 5
- 238000007789 sealing Methods 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 238000012544 monitoring process Methods 0.000 description 4
- 229920002635 polyurethane Polymers 0.000 description 4
- 239000004814 polyurethane Substances 0.000 description 4
- 230000000087 stabilizing effect Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B51/00—Testing machines, pumps, or pumping installations
Abstract
The invention provides a multifunctional performance testing device for a pump assembly, which enables the pump assembly to complete all tests on the device, has comprehensive and reliable tests, and is convenient to test by only one-time installation and positioning. The hydraulic pump comprises a positioning base, wherein the positioning base comprises an upper plate and a bottom plate, the upper plate and the bottom plate are connected through a connecting column to form an installation cavity, a pump assembly positioning piece is arranged at the central position of the upper plate, corresponding side compression mechanisms are respectively arranged at the two side positions of the pump assembly positioning piece, the side compression mechanisms are used for compressing a shell of the pump assembly, an oil inlet and a feedback oil port are respectively arranged at the bottom of the pump assembly, an oil outlet is arranged at the top of the pump assembly, an oil inlet plugging mechanism and a feedback oil port plugging mechanism are arranged in the installation cavity in a positioning mode, and plugs of the oil inlet plugging mechanism and the feedback oil port plugging mechanism are arranged towards corresponding oil ports.
Description
Technical Field
The invention relates to the technical field of pump testing devices, in particular to a multifunctional performance testing device for a pump assembly.
Background
With the rapid development of economic technology, market demands are continuously expanding, and the automation industry is also rapidly developing. Meanwhile, a plurality of testing technologies are continuously improved, and through testing the torque, the pressure and the flow of the pump assembly, the problems of unstable performance and the like of the pump assembly in the automobile industry can be well solved, and the product quality is improved. However, existing pump assembly tests, which require separate testing of a plurality of different devices, are complex to test.
Disclosure of Invention
Aiming at the problems, the invention provides a multifunctional performance testing device for a pump assembly, which enables the pump assembly to complete all tests on the device, the tests are comprehensive and reliable, the tests only need one-time installation and positioning, and the tests are convenient.
A pump assembly multi-functional capability test device, its characterized in that: the hydraulic pump comprises a positioning base, the positioning base comprises an upper plate and a bottom plate, the upper plate and the bottom plate are connected through a connecting column to form an installation cavity, a pump assembly positioning piece is arranged at the center position of the upper plate, corresponding lateral compression mechanisms are respectively arranged at the two side positions of the pump assembly positioning piece, the lateral compression mechanisms are used for compressing a shell of the pump assembly, an oil inlet and a feedback oil port are respectively arranged at the bottom of the pump assembly, an oil outlet is arranged at the top of the pump assembly, an oil inlet plugging mechanism and a feedback oil port plugging mechanism are positioned in the installation cavity, a plug of the oil inlet plugging mechanism and the feedback oil port plugging mechanism is arranged towards the corresponding oil port, the hydraulic pump further comprises a vertical support, the vertical support is positioned on one side of the positioning base, a lifting cylinder is arranged on the vertical support towards the vertical surface of the pump assembly, a connecting plate is fixedly connected with the output end of the lifting cylinder, the connecting plate is embedded on a first vertical guide rail, a servo motor and a butting mechanism are arranged on the front end vertical surface of the connecting plate, the output end of the servo motor is connected with the upper end of the butting mechanism through a torque sensor and a torque limiter, the butting mechanism is arranged at the upper end of the butting mechanism, and the oil outlet is arranged above the vertical support and is positioned above the oil outlet plugging mechanism.
It is further characterized by:
the side compression mechanism specifically comprises a horizontal compression cylinder, a pressing plate extending cylinder, a pressing plate and a guide seat plate, wherein the horizontal compression cylinder is fixedly connected to the corresponding position of an upper plate, a piston rod is arranged at the position, facing the pump assembly, of the horizontal compression cylinder, a push block is fixedly arranged at the output end of the piston rod, an inclined guide hole is horizontally and obliquely arranged on the push block, the guide seat plate is supported on a top spring of a vertical guide column, the bottom of the vertical guide column is fixedly connected to the corresponding position of the upper plate, the guide seat plate further comprises a downward-protruding side connecting plate, at least two guide transmission rods are arranged between the two side connecting plates, penetrate through the inclined guide holes respectively, the inclination between the adjacent transmission rods is the same as that of the inclined guide hole, a pressing plate installation guide groove is arranged on the guide seat plate, the pressing plate is partially exposed out of the guide seat plate and is arranged towards the pump assembly, the driving end of the pressing plate is fixedly connected with the corresponding piston end, extending out of the pressing plate after the cylinder is exposed, and the driving end of the pressing plate is fixedly connected to the cylinder;
the length of the inclined guide hole is longer than the length formed between the guide transmission rods at the head end and the tail end, so that the pressing plate is driven to vertically lift when the horizontal pressing cylinder acts;
four corners of the guide seat plate are respectively supported at corresponding positions by top springs supported on vertical guide columns, and the small-diameter end of the upper part of the vertical guide column is inserted into a guide hole of the guide seat plate to ensure that the pressing plate can only vertically lift under the drive of a horizontal pressing cylinder;
the bottom of the pushing block is embedded in an inner concave guide groove of the bottom guide plate, and the inner concave guide groove is arranged parallel to the driving direction of the horizontal compression cylinder, so that the pushing block can only advance or retreat in a linear direction, and smooth compression action of the pressing plate is ensured;
the vertical support further comprises a second vertical plate with a side protrusion, an oil outlet blocking mechanism is arranged on the second vertical plate, the oil outlet blocking mechanism is clamped on a second vertical guide rail of the second vertical plate, a driving cylinder is fixedly arranged on the vertical support, the driving cylinder is fixedly connected with the upper part of the oil outlet blocking mechanism, and a plug of the oil outlet blocking mechanism is driven by the driving cylinder to block the oil outlet;
the plug of the oil outlet plugging mechanism is specifically an embedded annular polyurethane press block, so that the tightness of the test is ensured;
the oil inlet plugging mechanism and the feedback oil port plugging mechanism are all driven and arranged through independent cylinders;
the external pipeline of the oil inlet plugging mechanism is divided into two paths, wherein one path is connected with the first stop valve and then connected with the silencer, and the other path is connected with the second stop valve and then connected with the first pressure sensor;
the plug position side way of the oil outlet plugging mechanism is connected with a second pressure sensor, the main way is divided into two ways, one way is connected with a first check valve and then is connected with a third stop valve, the other way is connected with a second check valve and then is sequentially connected with a flowmeter, a precise regulating valve and a fourth stop valve, the outlet ends of the third stop valve and the fourth stop valve are summarized and then are connected with a first port of the output end of the second flowmeter, the plug position side way of the feedback oil outlet plugging mechanism is connected with a third pressure sensor, the main way is connected with a second port of the output end of the second flowmeter and then is connected with a fifth stop valve, the test gas tank assembly is connected with the input end of the second flowmeter through a filtering and pressure reducing valve and then is connected with a servo proportional valve, and the input end of the test gas tank assembly is provided with an air source processing unit.
A method for testing the multifunction performance of a pump assembly is characterized in that: manually placing the pump assembly on a pump assembly positioning piece for positioning, and then compacting and positioning through two side compacting mechanisms; the oil inlet plugging mechanism and the feedback oil port plugging mechanism are plugged directly through an air cylinder, and then the lifting air cylinder drives the abutting mechanism to move up and down, so that the abutting mechanism abuts against a tested product; the oil outlet plugging mechanism directly plugs by adopting an air cylinder, and then the servo motor provides driving force for the test system and rotates forward or reversely at a corresponding speed according to the test requirement, so that the rotating stability is ensured; the torque sensor detects the torque of the product in real time when the product rotates, ensures the stability and accuracy of measurement, completes various tests by switching on and off a stop valve in a test gas circuit and switching a test loop, automatically draws a test curve in the test process, and judges whether the test is qualified or not.
The method is further characterized by comprising the following specific steps of:
1. the oil inlet, the oil outlet and the feedback oil hole are all communicated with the atmosphere, the rotor is driven to reversely rotate at 60rpm, the torque change is detected, and the test is carried out for 5S;
2. sealing the oil inlet and the feedback oil hole, leading the oil outlet to the atmosphere, driving the rotor positively at a rotating speed of 200rpm, connecting an absolute pressure sensor to the oil inlet cavity, testing 5S, and monitoring the pressure change;
3. the oil outlet and the oil inlet are communicated with the atmosphere, compressed air of 10bar is continuously supplied from the feedback oil hole, the proportional valve is arranged on the air inlet air path, and the pressure is regulated in the low-pressure mode: 1-3bar; the power-off high-voltage mode starts to regulate pressure: 3-6bar displacement: 3-6mm, monitoring flow and pressure, and enabling the air source to be more than 100L;
4. sealing the oil inlet and the oil outlet, arranging an exhaust port with the diameter of 10mm at the joint of the oil inlet, arranging a silencer, connecting compressed air with the oil outlet at the pressure of 10bar, inflating, adjusting and stabilizing the test pressure by a pressure regulator for 3bar to 5s, closing the exhaust port after stabilizing the pressure, adjusting and stabilizing the test pressure by the pressure regulator again, and continuing to test for 3 to 5s to finish the test; the front test is an end face flow test process, and the rear test is a leakage flow test process.
5. Sealing the oil inlet, the oil outlet and the feedback oil hole, connecting the oil outlet of the pump with a test gas tank, inflating and reducing the gas to the oil outlet through a proportional valve, so that the safety valve is opened and closed, connecting the pressure sensor at a position with a minimum distance from the safety valve, connecting the flow sensor to the test gas circuit proportional valve, and opening the pressure at an inflection point: 11.+ -.1 bar, inflection point closing pressure: 10.+ -. 1bar; pressure difference: 1.02bar, inflection point opening flow: 2000L/min, inflection point closes flow: 400L/min, flow difference: 1600L/min.
After the technical scheme is adopted, the lifting cylinder drives the docking mechanism to move up and down, so that docking with a tested product is realized; the servo motor provides driving force for the test system and rotates forward or backward at a certain speed according to the test requirement, so that the rotation stability is ensured; the high-precision torque sensor detects the torque of the product during rotation in real time, so that the stability and the accuracy of measurement are ensured, and the torque limiter can prevent the damage of the torque sensor caused by mechanical jamming; the abutting mechanism adopts an elastic structure and has certain flexibility when abutting against a product; the oil outlet plugging mechanism directly plugs by adopting an air cylinder, and plugs and inlays an annular polyurethane press block to ensure the test tightness; the pump assembly can complete all tests on the device, the tests are comprehensive and reliable, the tests only need one-time installation and positioning, and the tests are convenient.
Drawings
FIG. 1 is a schematic perspective view of a testing device according to the present invention;
FIG. 2 is a schematic perspective view of the positioning base arrangement of the testing device of the present invention;
FIG. 3 is a schematic perspective view of a vertical support of the testing device of the present invention;
FIG. 4 is a schematic perspective view of the side compression mechanism of the present invention;
FIG. 5 is a schematic diagram of the connection of the test device of the present invention;
the structure names corresponding to the serial numbers in the figure are as follows:
the device comprises a positioning base 1, an upper plate 101, a bottom plate 102, a connecting column 103, a mounting cavity 104, a pump assembly positioning piece 2, a side compression mechanism 3, a horizontal compression cylinder 31, a piston rod 311, a pressing plate extending cylinder 32, a pressing plate 33, a guide seat plate 34, a side connecting plate 341, a pressing plate mounting guide groove 342, a guide hole 343, a push block 35, an inclined guide hole 351, a vertical guide column 36, a top spring 37, a transmission rod 38, an inclined guide hole 351, a bottom guide plate 39, a pump assembly 4, an oil inlet 41, a feedback oil port 42, an oil outlet 43, an oil inlet plugging mechanism 5, a first stop valve 51, a muffler 52, a second stop valve 53, a first pressure sensor 54, a feedback oil port plugging mechanism 6, a third pressure sensor 61, a fifth stop valve 62, a vertical support 7, a second vertical support 71, a second vertical guide 711, a lifting cylinder 8, a connecting plate 9, a first vertical guide rail 10, a servo motor 11, a docking mechanism 12, a precision plugging mechanism 13, a second pressure sensor 131, a first one-way valve 132, a second one-way valve 133, a second one-way valve 134, a flowmeter 135, a fourth stop valve 135, a flow meter 135, a fourth regulator 136, a fourth throttle valve 14, a driving valve 16, a throttle valve 17, a proportional air tank 18, a torque sensor assembly 16, a filter cylinder 18, a torque sensor assembly 16, a throttle valve 16, a proportional actuator 16, a throttle valve 16, a filter units, a throttle unit 18, a torque sensor assembly, a throttle unit 16, a etc.
Detailed Description
A pump assembly multifunctional performance testing device is shown in figures 1-5: the hydraulic pump comprises a positioning base 1, the positioning base 1 comprises an upper plate 101 and a bottom plate 102, the upper plate 101 and the bottom plate 102 are connected through a connecting column 103 to form a mounting cavity 104, a pump assembly positioning piece 2 is arranged at the center of the upper plate 101, corresponding side pressing mechanisms 3 are respectively arranged at two sides of the pump assembly positioning piece 2, the side pressing mechanisms 3 are used for pressing a shell of a pump assembly 4, an oil inlet 41 and a feedback oil port 42 are respectively arranged at the bottom of the pump assembly 4, an oil outlet 43 is arranged at the top of the pump assembly 4, an oil inlet plugging mechanism 5 and a feedback oil port plugging mechanism 6 are arranged in the mounting cavity 104, the oil inlet plugging mechanism 5 and the feedback oil port plugging mechanism 6 are arranged towards the corresponding oil port, the hydraulic pump further comprises a vertical support 7, the vertical support 7 is arranged at one side of the positioning base 1, a lifting cylinder 8 is arranged on the vertical face of the vertical support 7, the output end of the lifting cylinder 8 is fixedly connected with a connecting plate 9, the connecting plate 9 is embedded in a first vertical guide rail 10, a servo motor 11 and a butting mechanism 12 are arranged on the front end vertical face of the connecting plate 9, the output end of the servo motor 11 is connected with the upper end of the torque sensor 20 and the upper end of the torque sensor 21 and the butting mechanism 12, the upper end of the butting mechanism is arranged right above the oil outlet plugging mechanism 13, and the vertical end of the vertical support is arranged above the oil outlet plugging mechanism 13 is used for limiting the oil outlet.
The side pressing mechanism 3 specifically comprises a horizontal pressing cylinder 31, a pressing plate extending cylinder 32, a pressing plate 33 and a guide seat plate 34, wherein the horizontal pressing cylinder 31 is fixedly connected to the corresponding position of the upper plate 101, a piston rod 311 is arranged at the position, facing the pump assembly 4, of the horizontal pressing cylinder 31, a push block 35 is fixedly arranged at the output end of the piston rod 311, a horizontal oblique guide hole 351 is arranged on the push block 35, the guide seat plate 34 is supported on a top spring 37 of a vertical guide column 36, the vertical guide column 36 is fixedly connected to the corresponding position of the upper plate 101, the guide seat plate 34 also comprises a downward convex side connecting plate 341, at least two guide transmission rods 38 are arranged between the two side connecting plates 341, the transmission rods 38 are respectively arranged through the oblique guide holes 351, the inclination between the adjacent transmission rods 38 is the same as that of the oblique guide holes 351, a pressing plate mounting guide groove 342 is arranged on the guide seat plate 34, the pressing plate 33 is arranged in the pressing plate mounting guide groove 342, the pressing head part of the pressing plate 33 is exposed out of the guide seat plate 34 and is arranged facing the pump assembly 4, the driving end of the pressing plate 33 is exposed out of the guide plate 34, the cylinder is fixedly connected to the corresponding piston end of the pressing plate 32 extending out of the pressing plate 32, and at the pressing end is fixedly connected between the two side connecting plates and the driving end of the pressing plate 34 is fixedly connected with the pressing plate 32, and fixedly connected with the guide plate 32;
the length of the inclined guide hole 351 is longer than the length formed between the guide transmission rods 38 at the first end and the second end, so that the pressing plate 33 is driven to vertically move up and down when the horizontal pressing cylinder 31 acts;
four corners of the guide seat plate 34 are respectively supported at corresponding positions by top springs 37 supported on vertical guide columns 36, and the small diameter ends of the upper parts of the vertical guide columns 36 are inserted into guide holes 343 of the guide seat plate 34, so that the pressing plate 33 can only vertically lift under the drive of the horizontal pressing cylinder 31;
the bottom of the push block 35 is embedded in a concave guide groove of the bottom guide plate 39, and the concave guide groove is arranged parallel to the driving direction of the horizontal compression cylinder 31, so that the push block 35 can only advance or retreat in the linear direction, and smooth compression action of the pressing plate 33 is ensured;
the vertical support 7 further comprises a second vertical plate 71 with a side bulge, an oil outlet blocking mechanism 13 is arranged on the second vertical plate 71, the oil outlet blocking mechanism 13 is clamped on a second vertical guide rail 711 of the second vertical plate 71, a driving cylinder 14 is fixedly arranged on the vertical support 7, the driving cylinder 14 is fixedly connected with the upper part of the oil outlet blocking mechanism 13, and a plug of the driving cylinder 14 drives the oil outlet blocking mechanism 13 to block an oil outlet;
the plug of the oil outlet plugging mechanism 13 is specifically an embedded annular polyurethane press block, so that the tightness of the test is ensured;
the oil inlet plugging mechanism 5 and the feedback oil port plugging mechanism 6 are all driven and arranged through independent cylinders;
the external pipeline of the oil inlet plugging mechanism 5 is divided into two paths, wherein one path is connected with the first stop valve 51 and then connected with the silencer 52, and the other path is connected with the second stop valve 53 and then connected with the first pressure sensor 54;
the plug position side way of the oil outlet plugging mechanism 13 is connected with a second pressure sensor 131, the main way is divided into two ways, one way is connected with a first check valve 132 and then is connected with a third stop valve 133, the other way is connected with a second check valve 134 and then is sequentially connected with a flowmeter 135, a precision regulating valve 136 and a fourth stop valve 137, the outlet ends of the third stop valve 133 and the fourth stop valve 137 are summarized and then are connected with a first port of the output end of the second flowmeter 18, the plug position side way of the feedback oil outlet plugging mechanism 6 is connected with a third pressure sensor 61, the main way is connected with a second port of the output end of the second flowmeter 18 after the fifth stop valve 62 is connected, the test gas tank assembly 15 is connected with one end of the second flowmeter 18 after being connected with a servo proportional valve 17 through a filter pressure reducing valve 16, and the input end of the test gas tank assembly 15 is provided with a gas source processing unit 19.
A method for testing the multifunction performance of a pump assembly comprises the following steps: manually placing the pump assembly on a pump assembly positioning piece for positioning, and then compacting and positioning through two side compacting mechanisms; the oil inlet plugging mechanism and the feedback oil port plugging mechanism are directly plugged by adopting an air cylinder, and then the lifting air cylinder drives the abutting mechanism to move up and down so as to realize abutting with a tested product; the oil outlet plugging mechanism directly plugs by adopting an air cylinder, and then the servo motor provides driving force for the test system and rotates forward or reversely at a certain speed according to the test requirement so as to ensure the rotation stability; the high-precision torque sensor detects the torque of the product during rotation in real time, so that the stability and the accuracy of measurement are ensured, and the torque limiter can prevent the damage of the torque sensor caused by mechanical jamming; the abutting mechanism adopts an elastic structure and has certain flexibility when abutting against a product; and switching the test loop by switching on and off the stop valve in the test air circuit to finish various tests. In the test process, data acquisition is carried out through each sensor, a test curve is automatically drawn, the test is completed, and whether the test is qualified or not is judged.
The specific steps of the gas circuit test are as follows:
1. the oil inlet and the oil outlet of the pump and the feedback oil hole are all communicated with the atmosphere, the rotor is driven to reversely rotate at 60rpm, the torque change is detected, and the test is carried out for 5S;
2. the testing method comprises the following steps: sealing the oil inlet and the feedback oil hole, leading the oil outlet to the atmosphere, driving the rotor forward at a rotating speed of 200rpm, connecting an absolute pressure sensor to the oil inlet cavity, testing 5S, and monitoring the pressure change
3. The oil outlet and the oil inlet of the pump are communicated with the atmosphere, compressed air of 10bar is continuously supplied from the feedback oil hole, the proportional valve is arranged on the air inlet air path, and the pressure is regulated in the low-pressure mode of electrifying: 1-3bar; the power-off high-voltage mode starts to regulate pressure: 3-6bar displacement: 3-6mm, monitoring flow and pressure, and enabling the air source to be more than 100L;
4. sealing an oil inlet and an oil outlet of the oil pump, connecting an exhaust port with the diameter of 10mm at the position of the oil inlet, arranging a silencer, connecting compressed air with the oil outlet and inflating (the pressure regulator is required to regulate and stabilize the test pressure to 3 bar), closing the exhaust port after the pressure is stabilized for 3-5s, regulating the pressure regulator again to stabilize the test pressure, and continuing to test for 3-5s to finish the test. The front test is an end face flow test process, and the rear test is a leakage flow test process;
5. the oil outlet of the pump is connected with a test gas tank, the oil outlet is inflated and deflated through a proportional valve, the safety valve is opened and closed, the pressure sensor is connected at a position with a distance from the safety valve as small as possible, and the flow sensor is connected behind the test gas path proportional valve. Inflection point opening pressure: 11.+ -. 1 (oil measurement: 10.+ -. 0.5 bar) inflection point closing pressure: 10.+ -. 1bar; pressure difference: 1.02 bar/inflection point on flow: 2000L/min inflection point closing flow: 400L/min flow difference: 1600L/min.
The lifting cylinder drives the docking mechanism to move up and down so as to realize docking with the tested product; the servo motor provides driving force for the test system and rotates forward or backward at a certain speed according to the test requirement, so that the rotation stability is ensured; the high-precision torque sensor detects the torque of the product during rotation in real time, so that the stability and the accuracy of measurement are ensured, and the torque limiter can prevent the damage of the torque sensor caused by mechanical jamming; the abutting mechanism adopts an elastic structure and has certain flexibility when abutting against a product; the oil outlet plugging mechanism directly plugs by adopting an air cylinder, and plugs and inlays an annular polyurethane press block to ensure the test tightness; the pump assembly can complete all tests on the device, the tests are comprehensive and reliable, the tests only need one-time installation and positioning, and the tests are convenient.
The foregoing describes the embodiments of the present invention in detail, but the description is only a preferred embodiment of the invention and should not be construed as limiting the scope of the invention. All equivalent changes and modifications made in accordance with the scope of the present invention shall fall within the scope of the present patent.
Claims (6)
1. A pump assembly multi-functional capability test device, its characterized in that: the hydraulic pump comprises a positioning base, wherein the positioning base comprises an upper plate and a bottom plate, the upper plate and the bottom plate are connected through a connecting column to form a mounting cavity, a pump assembly positioning piece is arranged at the center of the upper plate, corresponding lateral compression mechanisms are respectively arranged at the two side positions of the pump assembly positioning piece, the lateral compression mechanisms are used for compressing a shell of the pump assembly, an oil inlet and a feedback oil port are respectively arranged at the bottom of the pump assembly, an oil outlet is arranged at the top of the pump assembly, an oil inlet plugging mechanism and a feedback oil port plugging mechanism are positioned in the mounting cavity, plugs of the oil inlet plugging mechanism and the feedback oil port plugging mechanism are arranged towards the corresponding oil port, the hydraulic pump further comprises a vertical support, the vertical support is positioned at one side of the positioning base, a lifting cylinder is arranged on a vertical surface of the vertical support facing the pump assembly, a connecting plate is fixedly connected with the output end of the lifting cylinder, the connecting plate is embedded in a first vertical guide rail, a servo motor and a butting mechanism are arranged on the front end elevation of the connecting plate, the output end of the servo motor is connected with the upper end of the butting mechanism through a torque sensor and a torque limiter, the oil outlet is arranged at the position of the upper end of the butting mechanism, and the oil outlet is positioned above the vertical support and is positioned above the oil outlet plugging mechanism;
the side compression mechanism specifically comprises a horizontal compression cylinder, a pressing plate extending cylinder, a pressing plate and a guide seat plate, wherein the horizontal compression cylinder is fixedly connected to the corresponding position of an upper plate, a piston rod is arranged at the position, facing the pump assembly, of the horizontal compression cylinder, a push block is fixedly arranged at the output end of the piston rod, an inclined guide hole horizontally and obliquely arranged is arranged on the push block, the guide seat plate is supported on a top spring of a vertical guide column, the bottom of the vertical guide column is fixedly connected to the corresponding position of the upper plate, the guide seat plate further comprises a downward-protruding side connecting plate, at least two guide transmission rods are arranged between the two side connecting plates, penetrate through the inclined guide holes respectively, the inclination between the adjacent transmission rods is the same as that of the inclined guide hole, a pressing plate installation guide groove is arranged on the guide seat plate, the pressing plate is arranged in the pressing plate installation guide groove, the pressing head part of the pressing plate is exposed out of the guide seat plate and is arranged towards the pump assembly, the driving end of the pressing plate is fixedly connected with the corresponding piston end, which extends out of the pressing plate after the pressing plate is fixedly connected to the cylinder, and the driving end of the pressing plate extends out of the guide seat plate is fixedly connected to the guide plate;
the plug position side way of the oil outlet plugging mechanism is connected with a second pressure sensor, a pipeline connected with the second pressure sensor is divided into two ways, one way is connected with a first check valve and then is connected with a third check valve, the other way is connected with a second check valve and then is sequentially connected with a flowmeter, a precise regulating valve and a fourth check valve, the outlet ends of the third check valve and the fourth check valve are summarized and then are connected with a first port of the output end of the second flowmeter, the plug position side way of the feedback oil outlet plugging mechanism is connected with a third pressure sensor, the pipeline connected with the third pressure sensor is connected with a second port of the output end of the second flowmeter after being connected with a fifth check valve, the test gas tank assembly is connected with the input end of the second flowmeter after being connected with a servo proportional valve through a filtering and pressure reducing valve, and the input end of the test gas tank assembly is provided with a gas source processing unit.
2. A pump assembly multifunction testing apparatus as set forth in claim 1, wherein: the length of the inclined guide hole is greater than the length formed between the guide transmission rods at the head end and the tail end.
3. A pump assembly multifunction testing apparatus as set forth in claim 2 wherein: four corners of the guide seat plate are respectively supported at corresponding positions by top springs supported on the vertical guide columns, and the small-diameter ends of the upper parts of the vertical guide columns are inserted into guide holes of the guide seat plate.
4. A pump assembly multifunction testing apparatus as defined in claim 3, wherein: the bottom of the pushing block is embedded in the concave guide groove of the bottom guide plate, and the concave guide groove is parallel to the driving direction of the horizontal compression cylinder.
5. A pump assembly multifunction testing apparatus as set forth in claim 1, wherein: the vertical support further comprises a second vertical plate with a side protrusion, an oil outlet blocking mechanism is arranged on the second vertical plate and clamped on a second vertical guide rail of the second vertical plate, a driving cylinder is fixedly arranged on the vertical support and fixedly connected with the upper part of the oil outlet blocking mechanism, and a plug of the oil outlet blocking mechanism is driven by the driving cylinder to block the oil outlet.
6. A pump assembly multifunction testing apparatus as set forth in claim 1, wherein: the external pipeline of the oil inlet plugging mechanism is divided into two paths, wherein one path is connected with the first stop valve and then connected with the silencer, and the other path is connected with the second stop valve and then connected with the first pressure sensor.
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| CN111594429B (en) * | 2020-05-06 | 2022-04-19 | 杭州沃镭智能科技股份有限公司 | Air medium detection method and detection device of vane type variable displacement oil pump |
| CN114136608A (en) * | 2021-12-17 | 2022-03-04 | 重庆百吉四兴压铸有限公司 | Pressure test system |
| CN113982900B (en) * | 2021-12-28 | 2022-05-20 | 宁波圣龙智能汽车系统有限公司 | Variable displacement oil pump testing mechanism, testing method and testing system |
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| CN201794772U (en) * | 2010-09-28 | 2011-04-13 | 浙江凌翔科技有限公司 | Oil pump body performance testing equipment |
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| US6757630B2 (en) * | 1994-08-19 | 2004-06-29 | Mediq/Prn Life Support Services, Inc. | Integrated systems for testing and certifying the physical, functional, and electrical performance of IV pumps |
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| CN201794772U (en) * | 2010-09-28 | 2011-04-13 | 浙江凌翔科技有限公司 | Oil pump body performance testing equipment |
| CN103644110A (en) * | 2013-11-25 | 2014-03-19 | 大连元利流体技术有限公司 | Integrated detection system of performance of gas-liquid booster pump |
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| CN109538464A (en) | 2019-03-29 |
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