CN118188468A - Oil pump test method, oil pump test device and oil pump test machine - Google Patents
Oil pump test method, oil pump test device and oil pump test machine Download PDFInfo
- Publication number
- CN118188468A CN118188468A CN202410581184.9A CN202410581184A CN118188468A CN 118188468 A CN118188468 A CN 118188468A CN 202410581184 A CN202410581184 A CN 202410581184A CN 118188468 A CN118188468 A CN 118188468A
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- oil pump
- limiting
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- seat
- test
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- 238000012360 testing method Methods 0.000 title claims abstract description 112
- 238000010998 test method Methods 0.000 title claims abstract description 12
- 230000000670 limiting effect Effects 0.000 claims abstract description 126
- 238000007789 sealing Methods 0.000 claims abstract description 75
- 239000007788 liquid Substances 0.000 claims description 46
- 230000008878 coupling Effects 0.000 claims description 27
- 238000010168 coupling process Methods 0.000 claims description 27
- 238000005859 coupling reaction Methods 0.000 claims description 27
- 230000007246 mechanism Effects 0.000 claims description 13
- 238000007599 discharging Methods 0.000 claims description 12
- 238000007664 blowing Methods 0.000 claims description 8
- 239000003129 oil well Substances 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 5
- 238000013459 approach Methods 0.000 claims description 2
- 230000006378 damage Effects 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 5
- 238000001514 detection method Methods 0.000 description 5
- 238000011056 performance test Methods 0.000 description 4
- 239000003208 petroleum Substances 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000002706 hydrostatic effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The invention provides an oil pump test method, an oil pump test device and an oil pump test machine which are different from the prior art, wherein a connecting joint is changed into a seal of the outer circumference of an oil pump; the efficiency is improved, the problem caused by the original connection pressure test joint test is avoided, and the link for fixing the tested oil pump is added after sealing in order to overcome the fixing effect which cannot be achieved by the outer circumference of the seal; the oil pump test device adopts the large-clearance sealing ring to seal the outer circumference of the oil pump, the design comprises two semi-rings of the limiting ring to fix the oil pump, the oil pump test is ensured to be fixed and convenient to enter and exit, the limiting seat is designed to assist in limiting, the limiting ring is tightly attached to the limiting seat, the axial force is borne by the limiting seat, and the possible deformation and damage of the limiting ring are avoided.
Description
Technical Field
The invention relates to the technical field of performance detection of oil pumps, in particular to an oil pump test method, an oil pump test device and an oil pump test machine.
Background
The oil-well pump is used for lifting underground petroleum to the ground, after delivery or maintenance of the oil-well pump, the oil-well pump needs to be subjected to sealing performance test and leakage detection to judge the product quality, and a plurality of standards exist in the industry for specifying the oil-well pump, such as: GB/T18607, etc., around this need, there are various detection means and systems in the industry, but almost all adopt a mode of connecting a joint to a liquid inlet of an oil pump to introduce test liquid (including 201510228824 patent application filed by the applicant); the connection methods in the following related documents are all adopted: the oil pump tightness and leakage test bed is put forward by pages 63 to 74 of oil field ground engineering (OSE) of 4 in 1994, the comprehensive function bench system for oil pump assembly and test is set on pages 43 to 45 of 32 nd volume of petroleum machinery in 2004, and the oil pump leakage test study is set on pages 63 to 64 of 21 st volume of petroleum instrument in 2007; the gap leakage test method based on the oil pump performance test device has the application number 201110404430.6; the application patent application No. 201210527525.1 is a system for automatically detecting leakage of an oil pump, the application application No. 201410134469.4 is a simple device for detecting leakage and tightness between a pump barrel and a plunger of the oil pump; 201510228824 a sealing performance test and leakage amount detection system and test device of an oil pump and a multi-pump type pressure test system with the publication number of CN215762168U applied earlier by the inventor; the appendix I of the related industry standard GB/T18607-2017 of the existing oil well pump more clearly shows that the upper end of the assembled pump cylinder of the oil well pump is connected with the pressure test connector … … during the test, thus the mode of adopting connector connection is the industry convention; by adopting the mode for testing, the joint is required to be connected to the liquid inlet of the oil pump, and the relevant joint is taken down after the test is finished.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a test method of an oil pump, which is different from the prior art; the test method changes the sealing mode, improves the efficiency and avoids the problem caused by the original test of connecting the pressure test joint.
The technical scheme of the invention is as follows:
The oil pump test method comprises the following steps:
(1) Inserting the tested oil pump into an oil pump test device, and fixing the tested oil pump;
(2) Sealing the outer circumference of the oil pump;
(3) Introducing test liquid into the tested oil pump for testing;
(4) And after the test is finished, the sealing device is released to seal, and the tested pump is released.
The mode of changing the connecting joint is to seal the outer circumference, so that a screw thread screwing link is omitted, the control is simple, the automation is easy to realize, and meanwhile, the test problem possibly caused by the fact that the screw thread is not sealed in place and the damage possibility to the oil pump are avoided; in addition, after the sealing mode is changed into the sealing outer circumference, the fixing effect of the threaded connection of the pressure test joint can not be realized any more, and in order to avoid the oil pump from falling out in the test process, a link for fixing the tested oil pump is additionally arranged after the sealing.
As a preferred embodiment of the oil pump test method: the oil pump test device adopts a large-clearance sealing ring to seal the outer circumference of the oil pump, and the mode of fixing the tested oil pump is that a limiting device is arranged in the opposite direction of a liquid through hole of the tested pump.
The sealing element is used for sealing the outer circumference of the oil pump, so that the sealing element is simple and convenient to realize; and a limiting device is arranged in the opposite direction of the liquid inlet of the tested pump, so that the axial force of the test liquid acting on the tested oil pump can be counteracted, and the oil pump is prevented from falling out.
The invention also provides an oil pump test device for realizing the oil pump test method, which comprises a sealing seat and a large-clearance sealing ring, wherein the large-clearance sealing ring is arranged in the sealing seat, the sealing seat is provided with a pre-sealing liquid channel leading to the outer circumference of the large-clearance sealing ring, and the tested oil pump is inserted into the central hole of the large-clearance sealing ring; the method is characterized in that: the sealing seat is provided with a sealing seat, and the sealing seat is provided with a sealing seat; the limiting device comprises a limiting seat and a limiting ring, a pump inlet hole capable of entering the tested oil pump is formed in the middle of the limiting seat, the limiting ring corresponds to the pump inlet hole, and the limiting ring comprises two semi-rings which are driven by a limiting driving part to approach or be far away; when the coupling is close, the coupling can contact the surface of the tested pump away from the liquid port so as to realize limit; when the pump is far away, the two semi-rings leave the coupling, so that the tested pump can freely enter and exit the sealing seat.
A large-gap sealing ring is arranged in the sealing seat, and is pressed through a pre-sealing channel, so that the sealing ring tightly holds a tested element to realize sealing; the limiting driving part drives the two semi-rings to open or close the passage of the tested pump in and out of the sealing seat, so that the tested pump can be conveniently in and out and fixed; the surface limited by the limiting ring is the surface of the coupling of the tested pump far away from the liquid through hole, and the axial force only acts on the head coupling, so that the body of the oil pump is protected maximally.
The face of the collar remote from the port is often made beveled to match the structure: the limiting ring is provided with an inclined plane matched with the surface of the coupling, which is far away from the liquid port.
The limiting ring is tightly attached to the contact surface of the coupling, and the conducting force is good.
The invention also provides a preferred embodiment of the limit ring arrangement: the limiting ring is arranged between the limiting seat and the sealing seat, the limiting seat is provided with a matching surface with the limiting ring, and the limiting ring is tightly attached to the limiting seat during test.
During the test, the spacing ring is closely laminated with the spacing seat, and axial force is born by the spacing seat, has avoided the possible deformation and the destruction of spacing ring.
Preferred embodiment of the collar, the face remote from the port is made as a bevel: the matching surface of the limiting ring on the limiting seat is parallel to the inclined surface of the coupling, which is far away from the liquid port.
The parallel transmission effect of the axial force is best, and the possible deformation and damage of the limiting ring are better avoided.
When the limit ring mating surface on the limit seat is parallel to the inclined plane of the coupling away from the liquid through hole, a part of the limit ring is inserted into the limit seat during sealing, so that the limit ring is inconvenient to open, and the adaptability is improved in order to solve the problem: the device also comprises a limiting device driving part, wherein the limiting device driving part drives the limiting device to be parallel to the axial direction of the tested oil pump to be far away from or close to the limiting seat.
The limiting device driving part enables the limiting device to axially move, withdraw from or enter into the limiting seat, and when the limiting device enters into the limiting seat, the limiting seat limits displacement of the limiting ring in both axial direction and circumferential direction, so that the limiting effect is ensured; when the limiting seat is withdrawn, the limiting ring can be opened, so that the oil pump is convenient to move.
During the test, the spacing ring closely laminates with spacing seat under the effect of test pressure, probably can cause both contact surface to glue, and test medium gets into the contact surface and can aggravate this trend more, in order to make both be convenient for more separate: the limiting ring matching surface on the limiting seat is provided with an air blowing port, and a passage communicated with the air blowing port is arranged inside the limiting seat.
After the test is finished, compressed air is blown to the matching surfaces of the limiting seat and the limiting ring through the air blowing port, and the compressed air enters the matching surfaces, so that the problem of adhesion of the contact surfaces can be better solved.
The invention also provides an oil pump testing machine, which comprises a frame, a travelling trolley and a feeding and discharging mechanism, and is characterized in that: the device comprises a frame, a walking trolley, an oil pump test device, a feeding mechanism and a discharging mechanism, wherein the walking trolley is arranged on the left side of the frame; the feeding and discharging mechanism comprises a driving cylinder and a lifting device which is driven by the driving cylinder and can move up and down, when the lifting device ascends, the tested pump can be lifted to be higher than the oil pump test device, and when the lifting device descends, the tested pump corresponds to the oil pump test device; the walking trolley is provided with a limiting device corresponding to the tail end of the oil pump, and can move left and right along the frame, when moving rightwards, the walking trolley drives the liquid inlet end of the tested oil pump to enter the oil pump test device, and when moving leftwards, the walking trolley drives the liquid inlet end of the oil pump to deviate from the oil pump test device.
The travelling trolley and the feeding and discharging mechanism are matched with the oil pump test device, so that the oil pump test work can be efficiently and high-quality realized.
In order to realize smooth removal of test media, the oil pump testing machine further comprises an oil control device, wherein the oil control device is arranged on the travelling trolley; the oil control device comprises a driving cylinder and a lifting device which is driven by the driving cylinder and can move up and down, when the lifting device ascends, the tail end of the oil pump can be lifted, so that the tested liquid flows out from the liquid inlet end of the oil pump, and when the lifting device descends, the tail end of the oil pump descends and reaches a horizontal state.
The oil control device can conveniently realize the discharge of the test liquid of the oil pump, and is convenient for cleaning after the oil pump test is finished.
Drawings
Fig. 1 is a front view of an embodiment of the pump tester of the present invention, with the pump tester on the right side in partial section for ease of understanding.
Fig. 2 is an enlarged partial sectional view of the oil pump test apparatus on the right side of the embodiment of fig. 1 to show the structure of the oil pump test apparatus used therein.
Fig. 3 is an enlarged view of a portion of the pump test apparatus of fig. 2.
Fig. 4 is an a-direction cross-sectional view of the pump tester of fig. 1, wherein the left stop collar is in an open condition and the right stop collar is in a fully closed condition, for ease of comparison and viewing.
Fig. 5 is a cross-sectional view of the pump tester of fig. 1 in the B-direction.
Fig. 6 is a cross-sectional view of the pump tester of fig. 1 in the C-direction.
Fig. 7 shows an embodiment of the stop collar when the surface of the coupling of the oil pump facing away from the inlet is a vertical surface.
Fig. 8 is another embodiment of a stop collar implementation when the face of the pump collar facing away from the intake is beveled.
Detailed Description
Description of the embodiments
Embodiment 1 is an example of the oil pump testing machine according to the present invention, and will be described with reference to fig. 1,2, 3,4, and 5.
As shown in fig. 1, the oil pump test device 1 is arranged on the right side of the frame 2, the travelling trolley 3 is arranged on the left side of the frame, the travelling trolley 3 is provided with an oil control device 4, a feeding and discharging mechanism 5 and a roller device 6, the travelling trolley 3 can move left and right along the frame 2 and drive the oil control device 4, the feeding and discharging mechanism 5 and the roller device 6 on the travelling trolley to move left and right, a movable roller device 7 is further arranged between the travelling trolley 3 and the oil pump test device 1, and another set of feeding and discharging mechanism 5 is arranged.
As shown in fig. 2, the oil pump test device 1 comprises a sealing seat 11 and a large-gap sealing ring 12, wherein the large-gap sealing ring 12 is arranged in the sealing seat 11, the sealing seat 11 is provided with a pre-sealing liquid channel leading to the outer circumference of the large-gap sealing ring 12, and the sealing seat 11 is provided with a test liquid channel 13 and a test cavity 14 which are communicated with the inner circumference of the large-gap sealing ring 12; the left side of the sealing seat 11 is provided with a limiting device 15, and the limiting device 15 comprises a limiting seat 151, a limiting ring 152 and a limiting driving part 153; the limiting ring 152 is arranged between the limiting seat 151 and the sealing seat 11, the limiting ring 152 comprises two semi-rings, and the limiting driving part 153 is arranged in an upper and lower mode, so that the upper semi-ring and the lower semi-ring can be close to or far away from each other.
The left and right sides of fig. 4 illustrate two different states of the stop collar 152, wherein the left stop collar is opened, the right stop collar is fully closed, and when opened, the tested oil pump can freely enter and exit the test chamber 14, and when closed, the tested oil pump cannot enter and exit the test chamber 14.
Fig. 3 is an enlarged view of fig. 2, illustrating the form fit of the stop collar 152, stop seat 151, and collar of the pump 9 under test; the surface of the coupling, which is far away from the liquid port, is an inclined surface, in order to match the structure, the limiting ring 152 is provided with an inclined surface matched with the surface of the coupling, which is far away from the liquid port, and meanwhile, the matching surface of the limiting ring on the limiting seat 151 is parallel to the inclined surface of the coupling, which is far away from the liquid port; the limiting ring matching surface on the limiting seat 151 is provided with an air blowing port, and a passage communicated with the air blowing port is arranged inside the limiting seat.
The sealing seat 11 is provided with the set of limiting device driving parts 16 up and down respectively, so that the limiting ring 152 and the limiting driving parts 153 can be promoted to move left and right integrally, when the limiting ring 152 is moved to the rightmost side to be close to the sealing seat 11, the part of the limiting ring 152 penetrating into the limiting seat 151 is far away from the limiting seat 151, the limitation of the limiting seat 151 is avoided, and the upper half ring and the lower half ring are far away through the limiting driving parts 152; when moving to the leftmost close to the limiting seat 151, the limiting ring 152 can be close to the limiting seat 151, so that the axial force of the test liquid to the 9 of the tested oil pump can be conducted conveniently.
In this embodiment, the driving part 16 and the limiting driving part 153 of the limiting device are all driving cylinders, which is simple and easy to operate, and in addition, there are various driving modes in the industry to realize driving functions, such as motors, etc., and corresponding equivalent transformation is within the scope of the present invention.
When the oil pump test device provided by the embodiment of the invention is used for testing the oil pump, the oil pump is inserted into the test cavity 14 and passes through the large-clearance sealing ring 12, so that the large-clearance sealing ring 12 can seal the outer circumference of the coupling of the oil pump.
The limit driving part 152 acts to enable the upper half ring and the lower half ring of the limit ring 152 to be combined; the stop drive member 16 is actuated such that the stop collar 152 is moved to the far left proximate the stop seat 151.
And pressure liquid is introduced into the periphery of the large-clearance sealing ring 12 to compress and hold the oil pump tightly.
And (3) introducing test liquid into the oil pump along the test liquid channel 13 and the test cavity 14, and after the oil pump is filled with the test liquid, increasing the pressure to the test pressure for testing.
As shown in fig. 3, the test liquid in the test chamber 14 generates axial pressure on the oil pump, the pressure forces the oil pump to move leftwards, and at the moment, the limiting ring 152 abuts against the coupling, so that the oil pump is prevented from moving, the coupling bears opposite axial force, the minimum damage of the axial force to the oil pump is ensured, and possible instability and deformation are avoided.
The collar is hugged closely to spacing ring 152 one side, hugs closely spacing seat 151 one side, and axial force conduction is to spacing seat 151, has avoided the spacing ring 152 deformation that probably arouses, and spacing ring mating surface on the spacing seat 151 is parallel with the inclined plane that the collar kept away from the liquid mouth, and pressure transmission is convenient.
In addition, in order to ensure that the matching surface of the limiting ring is parallel to the inclined surface of the coupling, which is far away from the liquid through hole, a part of the limiting ring 152 is inserted into the limiting seat 151, the pressure of the inclined surface of the coupling is decomposed into axial force and circumferential force, the limiting seat 151 circumferentially limits the limiting ring 152, the self-locking effect is achieved, and the limiting ring 152 is prevented from being opened abnormally.
After the test is finished, the test pressure is relieved, the circumferential pre-sealing pressure of the large-clearance sealing ring 12 is relieved, and the tested pump is loosened; the limiting device driving part 16 acts, so that the limiting ring 152 moves to the rightmost side to be close to the sealing seat 11, the limiting driving part 152 acts, the upper half ring and the lower half ring of the limiting ring 152 are opened, and the tested oil pump can withdraw from the testing device.
After the test is finished, before the limiting device driving part 16 acts, compressed air is blown to the matching surfaces of the limiting seat and the limiting ring through the air blowing port, and the compressed air enters the matching surfaces, so that the adhesion problem of the contact surfaces caused by pressure and test liquid entering can be better solved.
The large gap seal ring pre-sealing mode described in this embodiment is the prior art in the industry, and is as follows: the literature such as "Structure study of a hydrostatic tester for a thermally expanded steel pipe" (Petroleum mining machinery, volume 38, pages 30 to 34 in 2009) is known.
In the embodiment, the cooperation of the travelling trolley 3, the oil control device 4, the feeding and discharging mechanism 5, the roller device 6 and the movable roller device 7 can conveniently realize the feeding and discharging test device of the tested oil pump;
5,6, before the test, the feeding and discharging mechanism 5 acts to move the tested oil pump to the test position, and the walking trolley 3 drives the tested oil pump to enter or exit the test device; the roller device supports the tested oil pump, and the axial movement of the shaft oil pump is smoother and more convenient.
After the test is finished, the oil control device 4 lifts the tested oil pump so that the test liquid flows out and flows into the V-shaped collecting tank 21 arranged at the bottom of the frame.
In this embodiment, as shown in fig. 4, the oil pump test device is respectively provided with two sets of left and right, and the two sets of test devices are tested simultaneously, so that the test efficiency is improved.
The implementation mode of the oil pump testing machine adopts a technical scheme in a 201510228824 oil pump sealing performance test, a leakage detection system and a test device patent applied by the applicant in the earlier stage, and the repetition is not described in detail.
Description of the embodiments
Embodiment 2 is another example of the sealing device according to the present invention, and is described with reference to fig. 7.
In fig. 7, the surface of the coupling of the oil pump facing away from the liquid inlet is an annular surface perpendicular to the axial direction, and the surface of the limiting ring contacted with the limiting ring is also perpendicular to the axial direction; also, the matching surface of the limiting ring on the limiting seat is parallel to the annular surface of the coupling, which is far away from the liquid port.
Description of the embodiments
Embodiment 3 is another example of the sealing device according to the present invention, and is described with reference to fig. 8.
In fig. 8, the surface of the coupling of the oil pump facing away from the liquid inlet is an inclined surface, the matching surface of the limiting ring on the limiting seat is perpendicular to the axis of the oil pump, and at this moment, the inclined surface of the coupling of the oil pump has a force for forcing the limiting ring to open, so that the limiting driving part is required to act to assist in overcoming the opening of the limiting ring.
Claims (10)
1. The oil pump test method comprises the following steps:
(1) Inserting the tested oil pump into an oil pump test device, and fixing the tested oil pump;
(2) Sealing the outer circumference of the oil pump;
(3) Introducing test liquid into the tested oil pump for testing;
(4) And after the test is finished, the sealing device is released to seal, and the tested pump is released.
2. The method for testing an oil pump according to claim 1, wherein: the oil pump test device adopts a large-clearance sealing ring to seal the outer circumference of the oil pump, and the mode of fixing the tested oil pump is that a limiting device is arranged in the opposite direction of a liquid through hole of the tested pump.
3. The oil pump test device for realizing the oil pump test method according to claim 2 comprises a sealing seat and a large-clearance sealing ring, wherein the large-clearance sealing ring is arranged in the sealing seat, the sealing seat is provided with a pre-sealing liquid channel leading to the outer circumference of the large-clearance sealing ring, and the tested oil pump is inserted into the central hole of the large-clearance sealing ring; the method is characterized in that: the sealing seat is provided with a sealing seat, and the sealing seat is provided with a sealing seat; the limiting device comprises a limiting seat and a limiting ring, a pump inlet hole capable of entering the tested oil pump is formed in the middle of the limiting seat, the limiting ring corresponds to the pump inlet hole, and the limiting ring comprises two semi-rings which are driven by a limiting driving part to approach or be far away; when the coupling is close, the coupling can contact the surface of the tested pump away from the liquid port so as to realize limit; when the pump is far away, the two semi-rings leave the coupling, so that the tested pump can freely enter and exit the sealing seat.
4. A pump test unit according to claim 3, wherein: the limiting ring is provided with an inclined plane matched with the surface of the coupling, which is far away from the liquid port.
5. The oil pump test device of claim 4, wherein: the limiting ring is arranged between the limiting seat and the sealing seat, the limiting seat is provided with a matching surface with the limiting ring, and the limiting ring is tightly attached to the limiting seat during test.
6. The oil pump test device of claim 5, wherein: the matching surface of the limiting ring on the limiting seat is parallel to the inclined surface of the coupling, which is far away from the liquid port.
7. The oil pump test device of claim 6, wherein: the device also comprises a limiting device driving part, wherein the limiting device driving part drives the limiting device to be parallel to the axial direction of the tested oil pump to be far away from or close to the limiting seat.
8. The oil pump test device of claim 4, wherein: the limiting ring matching surface on the limiting seat is provided with an air blowing port, and a passage communicated with the air blowing port is arranged inside the limiting seat.
9. The utility model provides an oil-well pump testing machine, includes frame, travelling car, feed mechanism, its characterized in that: the oil pump test device according to any of claims 3 to 8 is arranged on the right side of the frame, the travelling trolley is arranged on the left side of the frame, and the feeding and discharging mechanisms are respectively arranged on the frame and the travelling trolley; the feeding and discharging mechanism comprises a driving cylinder and a lifting device which is driven by the driving cylinder and can move up and down, when the lifting device ascends, the tested pump can be lifted to be higher than the oil pump test device, and when the lifting device descends, the tested pump corresponds to the oil pump test device; the walking trolley is provided with a limiting frame corresponding to the tail end of the oil pump, and can move left and right along the frame, when moving rightwards, the walking trolley drives the liquid inlet end of the tested oil pump to enter the oil pump test device, and when moving leftwards, the walking trolley drives the liquid inlet end of the oil pump to deviate from the oil pump test device.
10. The oil pump testing machine of claim 9, wherein: the device also comprises an oil control device, wherein the oil control device is arranged on the travelling trolley; the oil control device comprises a driving cylinder and a lifting device which is driven by the driving cylinder and can move up and down, when the lifting device ascends, the tail end of the oil pump can be lifted, so that the tested liquid flows out from the liquid inlet end of the oil pump, and when the lifting device descends, the tail end of the oil pump descends and reaches a horizontal state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410581184.9A CN118188468A (en) | 2024-05-11 | 2024-05-11 | Oil pump test method, oil pump test device and oil pump test machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410581184.9A CN118188468A (en) | 2024-05-11 | 2024-05-11 | Oil pump test method, oil pump test device and oil pump test machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN118188468A true CN118188468A (en) | 2024-06-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410581184.9A Pending CN118188468A (en) | 2024-05-11 | 2024-05-11 | Oil pump test method, oil pump test device and oil pump test machine |
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| Country | Link |
|---|---|
| CN (1) | CN118188468A (en) |
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- 2024-05-11 CN CN202410581184.9A patent/CN118188468A/en active Pending
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