CN214118452U - Flow resistor assembly for oil pump rack testing mechanism - Google Patents
Flow resistor assembly for oil pump rack testing mechanism Download PDFInfo
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- CN214118452U CN214118452U CN202022592583.5U CN202022592583U CN214118452U CN 214118452 U CN214118452 U CN 214118452U CN 202022592583 U CN202022592583 U CN 202022592583U CN 214118452 U CN214118452 U CN 214118452U
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Abstract
The utility model discloses a flow resistor subassembly for machine oil pump rack accredited testing organization, including the oil tank, be used for the holding to detect the workstation of machine oil pump and be used for controlling the driver of detecting the work of machine oil pump, the oil-out of oil tank and the oil absorption mouth intercommunication of detecting the machine oil pump, the oil-out of detecting the machine oil pump passes through the oil return opening intercommunication of oil extraction pipe with the oil tank, flow resistor subassembly establishes ties on oil extraction pipe, its characterized in that: the flow resistor assembly includes a base having a flow conduit, a flow resistor simulation block embedded in the flow conduit, and a cover plate for securing the flow resistor simulation block to the base. The flow resistor assembly can replace electric, manual, starting and other pressure regulating valves in the existing testing mechanism, the flow resistor simulation block is quickly replaced according to actual requirements, the use is convenient, and the improvement of the testing precision is facilitated.
Description
Technical Field
The utility model relates to a technical field of pump performance detection specifically relates to a flow resistor subassembly for oil pump rack accredited testing organization.
Background
The engine is used as the heart of an automobile, the oil pump of the engine is important in an engine lubricating system, and the oil pump is used for reliably lubricating key parts such as an automobile engine, a gearbox and the like. The oil pump on the market is used for increasing the oil to a certain pressure and forcibly pressing the oil to the moving surfaces of various parts of an engine and a gearbox for lubrication. The structural form of the engine oil pump can be divided into a gear type and a rotor type, the produced oil pump needs to be installed on various middle engines or large-scale devices, and if the engine oil pump is unqualified, serious consequences such as abnormal engine operation can be caused. In order to avoid accidents and enable the engine to obtain better performance, the oil pump is subjected to relevant tests for simulating the industrial control of the engine before delivery so as to ensure the qualification of products delivered from factories. The related test refers to that before the product leaves the factory, some simulation bench tests, including some engine tests, are generally carried out, and then the product can be put into use. Generally, when an oil pump performance test is performed, a curve of a relation between outlet pressure and flow rate of the oil pump at different specified oil temperatures and different rotation speeds is tested, and then the curve is compared with the curve of the relation between outlet pressure and flow rate of the oil pump at different specified oil temperatures, so that whether the performance of the oil pump meets the specified qualified requirements is obtained. Therefore, the test bench of the oil pump is an important mechanism for judging whether the performance of the oil pump meets the requirements of the engine.
Moreover, with the increase of the national requirements for energy conservation and emission reduction, the pure lubricating and cooling oil pump on the market cannot meet the existing requirements, and various automobile manufacturers also put forward corresponding requirements for the power consumption of the engine according to actual conditions, and the oil pump is not limited to lubrication and cooling. More host plants prefer to reduce power consumption as much as possible without affecting lubrication and cooling effects, and successive oil pump manufacturers have introduced variable displacement oil pumps that meet practical conditions, requiring the oil pumps to provide different lubrication and flow rates depending on the energy consumption of the engine. Correspondingly, the intelligently adjusted variable-discharge oil pump appears, and correspondingly, the working condition that the detection test simulates the flow resistance of the actual working oil path of the engine after the oil pump is produced is particularly important.
The testing mechanism comprises an oil tank, a workbench for accommodating the oil pump to be detected and a driver for controlling the oil pump to be detected to work, wherein the oil outlet of the oil tank is communicated with an oil suction port of the oil pump to be detected, the oil outlet of the oil pump to be detected is communicated with an oil return port of the oil tank through an oil discharge pipe, the oil discharge pipe is connected with a first flow resistance regulating valve, the first flow resistance regulating valve is connected with a first fixed flow resistance and a first switch valve which are connected in series in parallel, and a first pressure sensor and a flow sensor are connected onto an oil discharge pipe between the oil outlet of the oil pump to be detected and the first flow resistance regulating valve. Wherein, for satisfying different flow resistance operating mode environment, under the actual demand of difference, the aperture size of first fixed flow resistance is different, how fast transform fixed flow resistance just improves product test accuracy, efficiency of software testing, is the problem that the technical scheme of this application will solve.
SUMMERY OF THE UTILITY MODEL
Aiming at the problems in the prior art, the flow resistor assembly for the oil pump rack testing mechanism is provided, the pressure regulating valves such as electric, manual and starting valves in the existing testing mechanism are replaced, the flow resistor simulation block is quickly replaced according to actual requirements, the use is convenient, and the improvement of the testing precision is facilitated.
For solving the technical problem, the utility model provides a flow resistor subassembly for oil pump rack accredited testing organization, including the oil tank, be used for the holding to detect the workstation of oil pump and be used for controlling the driver of detecting the work of oil pump, the oil-out of oil tank and the oil absorption mouth intercommunication of detecting the oil pump, the oil-out of detecting the oil pump passes through the oil return opening intercommunication of oil extraction pipe with the oil tank, the flow resistor subassembly is established ties on oil extraction pipe, its characterized in that: the flow resistor assembly includes a base having a flow conduit, a flow resistor simulation block embedded in the flow conduit, and a cover plate for securing the flow resistor simulation block to the base.
Preferably, the base is provided with an open slot communicated with the circulation pipeline, the central axis of the open slot is perpendicular to the central axis of the circulation pipeline, and the flow resistor simulation block is installed in the circulation pipeline from the open slot.
Preferably, a groove is formed in the inner wall of the circulation pipeline of the base, and the flow resistor simulation block is embedded in the groove.
Preferably, the length of the fluidic resistor simulation block is not greater than the length of the open slot.
Preferably, the cover plate is provided with a convex block, the side wall of the flow resistor simulation block is provided with a convex rod, the convex block abuts against the convex rod, and the cover plate fastens the flow resistor simulation block and the base to prevent the flow resistor simulation block from displacing under hydraulic impact.
Preferably, the seal groove has been seted up on the terminal surface of the open slot of base, the embedded sealing washer that is equipped with of seal groove, the apron lid prevents that the fluid through the fluidic resistor simulation piece from taking place the seepage on the open slot, guarantees its leakproofness requirement.
Preferably, both ends of the circulation pipeline of the base are coaxially provided with connecting pipelines which are communicated with the oil discharge pipe.
Preferably, the connecting conduit has a diameter greater than the diameter of the flow-through conduit.
After the structure more than adopting, compared with the prior art, the utility model, have following advantage:
1) the utility model discloses a flow resistor subassembly for oil pump rack accredited testing organization provides a specialty, reliable, experimental flow resistance simulator, replaces current regulation pressure valve such as electronic, manual, start, in this rack accredited testing organization, replaces fixed flow resistance, uses more simply reliably, can eliminate the impact that various air-vent valves produced to valve body itself when high-speed fluid or high pressure, causes to influence the production of pressure pulsation because of the air-vent valve when can avoiding experimental, so that the more real performance level of engine oil pump;
2) the utility model discloses can come quick replacement choker simulation piece according to actual demand, and need not demolish whole choker subassembly, effectively solve variable displacement oil pump performance characteristic curves's such as rotational speed-oil pressure-flow stability and uniformity when rotational speed characteristic, improve the measuring accuracy, guarantee the product quality of oil pump.
Drawings
Fig. 1 is a schematic structural diagram of an oil pump rack testing mechanism in the present invention;
fig. 2 is a schematic structural view of a flow resistor assembly according to the present invention;
fig. 3 is a schematic structural view of the flow resistor assembly of the present invention with the cover plate removed;
FIG. 4 is a front view of FIG. 3;
FIG. 5 is a sectional view taken along the line A-A in FIG. 4;
FIG. 6 is a cross-sectional view taken along the line B-B in FIG. 4;
fig. 7 is a schematic structural diagram of a cover plate in the present invention;
fig. 8 is a side view of a cover plate in the present invention.
In the attached drawings, 1, an oil pump to be detected; 2. an oil tank; 3. a driver; 4. an oil discharge pipe; 5. a first flow resistance regulating valve; 6. a second flow resistance regulating valve; 7.1, a first fixed flow resistance; 7.2, a second fixed flow resistance; 8.1, a first switch valve; 8.2, a second switch valve; 9. a flow sensor; 10. a first pressure sensor; 11. a second pressure sensor; 12. an oil return pipe; 13. a flow resistor assembly; 13.1, a base; 13.1.1, a flow conduit; 13.1.2, a groove; 13.1.3, connecting pipes; 13.1.4, open slots; 13.1.5, a seal groove; 13.1.6, a seal ring; 13.2, a fluidic resistor simulation block; 13.2.1, nose bar; 13.3, a cover plate; 13.3.1, bumps.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
As shown in fig. 1, a machine oil pump rack testing mechanism is shown, which includes an oil tank 2, a workbench for accommodating an oil pump 1 to be tested, and a driver 3 for controlling the operation of the oil pump 1 to be tested, an oil outlet of the oil tank 2 is communicated with an oil suction port of the oil pump 1 to be tested, an oil outlet of the oil pump 1 to be tested is communicated with an oil return port of the oil tank 2 through an oil discharge pipe 4, the oil discharge pipe 4 is sequentially connected with a first flow resistance regulating valve 5 and a second flow resistance regulating valve 6, the first flow resistance regulating valve 5 is connected in parallel with a first fixed flow resistance 7.1 and a first switch valve 8.1 which are mutually connected in series, correspondingly, the second flow resistance regulating valve 6 is connected in parallel with a second fixed flow resistance 7.2 and a second switch valve 8.2 which are mutually connected in series, the oil discharge pipe 4 between the oil outlet of the oil pump 1 to be tested and the first flow resistance regulating valve 5 is connected with a first pressure sensor 10 and a flow sensor 9, a second pressure sensor 11 is connected between the first flow resistance regulating valve 5 and the second flow resistance regulating valve 6, and an oil return pipe 12 is connected to the oil discharge pipe 4 between the first flow resistance regulating valve 5 and the second flow resistance regulating valve 6, and the oil return pipe 12 is connected with the oil pump 1 to be detected.
The first fixed flow resistance 7.1 and the second fixed flow resistance 7.2 are the flow resistor assembly 13 in the present application, as shown in fig. 2, that is, the flow resistor assembly 13 is connected in parallel to the flow resistance adjusting valve, that is, the flow resistor assembly 13 is connected in series to the oil discharge pipe 4.
Specifically, as shown in fig. 3 to 6, the fluidic resistor assembly 13 includes a base 13.1 having a flow conduit 13.1.1, a fluidic resistor simulation block 13.2 embedded in the flow conduit 13.1.1, and a cover plate 13.3 for fastening the fluidic resistor simulation block 13.2 with the base 13.1. The circulation pipeline 13.1.1 is communicated with the oil discharge pipe 4, namely oil in the oil discharge pipe 4 can flow out through the circulation pipeline 13.1.1 of the base 13.1, the flow resistor simulation block 13.2 is provided with an aperture, the flow resistor simulation block 13.2 is embedded in the circulation pipeline 13.1.1, the aperture is communicated with the circulation pipeline 13.1.1, the cover plate 13.3 can be used for locking and fastening the flow resistor simulation block 13.2 and the base 13.1, the flow resistor simulation block 13.2 is prevented from being displaced under hydraulic impact, the purpose of changing the working condition of flow resistance to meet the actual requirement can be achieved by replacing the flow resistor simulation block 13.2 with different apertures, and the test bench can evaluate the test performance of the engine more accurately.
More specifically, an open groove 13.1.4 communicated with the flow channel 13.1.1 is formed in the base 13.1, the central axis of the open groove 13.1.4 is perpendicular to the central axis of the flow channel 13.1.1, the fluidic resistor simulation block 13.2 is installed in the flow channel 13.1.1 through the open groove 13.1.4, and the length of the fluidic resistor simulation block 13.2 is not greater than that of the open groove 13.1.4. A groove 13.1.2 is formed on the inner wall of the circulation pipeline 13.1.1 of the base 13.1, and the flow resistor simulation block 13.2 is embedded in the groove 13.1.2 after entering through the open groove 13.1.4. In order to fix the fluidic resistor simulation block 13.2 in the flow channel 13.1.1, as shown in fig. 7 and 8, a cover plate 13.3 is provided on the open slot 13.1.4, a bump 13.3.1 is provided on the cover plate 13.3, a protruding rod 13.2.1 is provided on the side wall of the fluidic resistor simulation block 13.2, and the bump 13.3.1 abuts against the protruding rod 13.2.1 for locking and fastening the fluidic resistor simulation block 13.2 and the base 13.1; the end face of the opening groove 13.1.4 of the base 13.1 is provided with a sealing groove 13.1.5, a sealing ring 13.1.6 is embedded in the sealing groove 13.1.5, and the cover plate 13.3 covers the opening groove 13.1.4 through the sealing ring 13.1.6, so that the cover plate 13.3 and the opening groove 13.1.4 are sealed, leakage of oil passing through the flow resistor assembly 13 is prevented, and the sealing requirement of the oil is guaranteed.
The choke assembly 13 is connected in series in the oil drain pipe 4, so that a connecting pipe 13.1.3 is coaxially provided at both ends of the flow pipe 13.1.1 of the base 13.1, the connecting pipe 13.1.3 communicates with the oil drain pipe 4, and the diameter of the connecting pipe 13.1.3 is larger than that of the flow pipe 13.1.1.
When the testing device is used, two ends of the base 13.1 are connected and fixed with an oil discharge pipe 4 of the testing mechanism through a pipeline of the communicating pipeline, then the flow resistor simulation block 13.2 is installed, the inner diameters of the flow resistor simulation blocks with different sizes are replaced and adjusted according to information such as rotating speed, pressure and flow of the oil pump in the operation of an engine cylinder body provided by a customer, so that the rotating speed, pressure and flow of the oil pump meet the information parameter requirements provided by the customer, and then the cover plate 13.3 and the sealing ring 13.1.6 are fastened to finish the test.
The utility model discloses can come quick replacement choke ware simulation piece 13.2 according to actual demand, effectively solve variable displacement oil pump performance characteristics such as rotational speed-oil pressure-flow curve's stability and uniformity when rotational speed characteristic, improve the measuring accuracy, guarantee the product quality of oil pump.
It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit ly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
The above is only a preferred embodiment of the present invention, and not intended to limit the scope of the invention, and it should be appreciated by those skilled in the art that various equivalent substitutions and obvious changes made in the specification and drawings should be included within the scope of the present invention.
Claims (8)
1. The utility model provides a flow resistor subassembly for oil pump rack accredited testing organization, includes oil tank (2), is used for holding the workstation of waiting to detect oil pump (1) and is used for controlling driver (3) of waiting to detect oil pump (1) work, and the oil-out of oil tank (2) and the oil absorption mouth intercommunication of waiting to detect oil pump (1), the oil-out of waiting to detect oil pump (1) is through the oil return mouth intercommunication of oil drain pipe (4) and oil tank (2), flow resistor subassembly (13) establish ties on oil drain pipe (4), its characterized in that: the fluidic resistor assembly (13) comprises a base (13.1) with a flow duct (13.1.1), a fluidic resistor simulation block (13.2) embedded in the flow duct (13.1.1), and a cover plate (13.3) for fastening the fluidic resistor simulation block (13.2) with the base (13.1).
2. The flow resistor assembly for the oil pump stand testing mechanism according to claim 1, characterized in that the base (13.1) is provided with an open slot (13.1.4) communicating with the flow conduit (13.1.1), and the central axis of the open slot (13.1.4) is perpendicular to the central axis of the flow conduit (13.1.1).
3. The flow resistor assembly for the oil pump stand testing mechanism according to claim 2, characterized in that the inner wall of the flow channel (13.1.1) of the base (13.1) is provided with a groove (13.1.2), and the flow resistor simulation block (13.2) is embedded in the groove (13.1.2).
4. The flow resistor assembly for an oil pump stand testing mechanism according to claim 2 or 3, characterized in that the length of the flow resistor simulation block (13.2) is not greater than the length of the open slot (13.1.4).
5. The flow resistor assembly for the oil pump stand testing mechanism according to claim 4, characterized in that the cover plate (13.3) is provided with a bump (13.3.1), the side wall of the flow resistor simulation block (13.2) is provided with a protruding rod (13.2.1), and the bump (13.3.1) is abutted against the protruding rod (13.2.1).
6. The flow resistor assembly for the oil pump bench test mechanism according to claim 5, characterized in that the end face of the opening groove (13.1.4) of the base (13.1) is provided with a sealing groove (13.1.5), a sealing ring (13.1.6) is embedded in the sealing groove (13.1.5), and the cover plate (13.3) covers the opening groove (13.1.4).
7. The flow resistor assembly for an oil pump rig test mechanism according to claim 1, characterized in that the base (13.1) is provided with a connecting pipe (13.1.3) coaxially at both ends of the flow conduit (13.1.1), the connecting pipe (13.1.3) being in communication with the oil drain pipe (4).
8. The flow resistor assembly for an oil pump stand testing mechanism of claim 7, wherein the connecting conduit (13.1.3) has a diameter greater than a diameter of the flow conduit (13.1.1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022592583.5U CN214118452U (en) | 2020-11-11 | 2020-11-11 | Flow resistor assembly for oil pump rack testing mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022592583.5U CN214118452U (en) | 2020-11-11 | 2020-11-11 | Flow resistor assembly for oil pump rack testing mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214118452U true CN214118452U (en) | 2021-09-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022592583.5U Active CN214118452U (en) | 2020-11-11 | 2020-11-11 | Flow resistor assembly for oil pump rack testing mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214118452U (en) |
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2020
- 2020-11-11 CN CN202022592583.5U patent/CN214118452U/en active Active
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