CN220304592U - Multi-parameter oil sensor - Google Patents

Abstract

The utility model discloses a multi-parameter oil sensor, which comprises a shell, a main controller, a wear particle detection module and a multifunctional detection module, wherein the main controller is connected with the shell; the shell is provided with a main cavity, a wear particle cavity and a multifunctional cavity which are mutually separated, the wear particle cavity is provided with a first liquid through hole communicated with the outside, and the multifunctional cavity is provided with a second liquid through hole communicated with the outside; the main controller is arranged in the main chamber; the wear particle detection module is electrically connected with the main controller and is at least partially arranged in the wear particle chamber so as to detect wear particles of oil liquid in the wear particle chamber; the multifunctional detection module is electrically connected with the main controller and is at least partially arranged in the multifunctional chamber, and the multifunctional detection module can at least detect trace moisture and water activity of oil liquid in the multifunctional chamber. According to the technical scheme, the multi-parameter oil sensor can be installed to obtain physical parameters such as abrasion particles, trace moisture, water activity and the like of an oil to be detected.

Description

Multi-parameter oil sensor

Technical Field

The utility model relates to the technical field of sensors, in particular to a multi-parameter oil sensor.

Background

The oil is called as industrial blood, and plays important roles in mechanical equipment such as power lifting, lubrication, sealing, corrosion prevention, cooling and the like. It is counted that more than 70% of the failures of the mechanical equipment are caused by abrasion, and oil lubrication is often adopted in order to reduce the abrasion and prolong the service life of parts. The state of the oil in the mechanical equipment can directly reflect the abrasion state of the mechanical equipment, so that the monitoring of the oil in the mechanical equipment is particularly important. Currently, there are six-in-one sensors on the market for measuring the viscosity, density, temperature, dielectric constant, water content and water activity of the oil to be measured. Additionally, the oil product sensor is also provided with a wear particle sensor for detecting wear particles of oil to be detected, when a user needs to detect oil products in all aspects, the wear particle sensor and the six-in-one sensor are required to be purchased simultaneously, and the wear particle sensor and the six-in-one sensor are sequentially arranged on mechanical equipment, so that the operation process is complicated.

Disclosure of Invention

The utility model mainly aims to provide a multi-parameter oil sensor, and aims to obtain physical parameters such as abrasion particles, trace moisture, water activity and the like of an oil to be measured by installing the multi-parameter oil sensor.

In order to achieve the above object, the multi-parameter oil sensor provided by the present utility model comprises:

the shell is provided with a main cavity, a wear particle cavity and a multifunctional cavity which are mutually separated, the wear particle cavity is provided with a first liquid passing hole communicated with the outside, and the multifunctional cavity is provided with a second liquid passing hole communicated with the outside;

the main controller is arranged in the main chamber;

the wear particle detection module is electrically connected with the main controller and is at least partially arranged in the wear particle chamber so as to detect wear particles of oil liquid in the wear particle chamber; and

the multifunctional detection module is electrically connected with the main controller and is at least partially arranged in the multifunctional cavity, and the multifunctional detection module can at least detect trace moisture and water activity of oil liquid in the multifunctional cavity.

Optionally, the multifunctional detection module comprises a dielectric constant detection module and/or a trace moisture detection module and/or a temperature detection module and/or a resonance detection module, wherein the dielectric constant detection module is used for detecting dielectric constants in oil, the trace moisture detection module is used for detecting trace moisture and water activity in the oil, the temperature detection module is used for detecting temperature in the oil, and the resonance detection module is used for detecting density and viscosity of the oil.

Optionally, the temperature sensing probe of the temperature detection module, the moisture detection probe of the trace moisture detection module, and the dielectric constant probe of the dielectric constant detection module are disposed in the second via hole and configured to have the same structure.

Optionally, the wear particle detection module includes an adsorption type wear particle sensor and a wear particle probe, the wear particle probe is plugged at an inner end surface of the first liquid passing hole and is used for separating the wear particle chamber from the main chamber, and the adsorption type wear particle sensor is arranged at one side of the wear particle probe facing the wear particle chamber.

Optionally, a sealing ring groove is formed in the inner end face of the first through-liquid hole, the wear particle detection module further comprises a sealing ring embedded in the sealing ring groove, and the wear particle probe abuts against the sealing ring.

Optionally, the height of the first liquid through hole ranges from 1mm to 2mm.

Optionally, the diameter of the first liquid through hole ranges from 5mm to 8mm.

Optionally, the casing includes hexagonal pipe section and the detection pipe section of mutual threaded connection, hexagonal pipe section with the detection pipe section encloses jointly the main cavity, wearing and tearing granule cavity with multi-functional cavity is located the detection pipe section.

Optionally, the first liquid through hole and the second liquid through hole are both arranged on the end face of the detection pipe section far away from the hexagonal pipe section.

Optionally, a third liquid through hole is formed in the side wall of the detection pipe section, and the third liquid through hole is communicated with the second liquid through hole and the outside.

Optionally, the multi-parameter oil sensor further comprises an aviation plug, and the aviation plug is arranged on the end face, far away from the detection pipe section, of the hexagonal pipe section.

Optionally, the multiparameter oil sensor further comprises an alarm lamp, wherein the alarm lamp is arranged on the end face of the hexagonal pipe section, which is far away from the detection pipe section, and the alarm lamp can emit red light, yellow light and green light at least.

According to the technical scheme, the abrasion particle detection module and the multifunctional detection module are integrated on the sensor, so that the information of the abrasion particles, trace moisture and water activity of the oil to be detected can be detected simultaneously only by installing the multi-parameter oil sensor, and the detection convenience is improved. Particularly, the abrasion particle detection module and the multifunctional detection module are respectively arranged in the abrasion particle chamber and the multifunctional chamber, so that the two detection modules are not interfered with each other, and the detection work can be well completed.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a partial cross-sectional view of one embodiment of a multiparameter oil sensor of the present utility model, taken below fold line A-A;

fig. 2 is a partial enlarged view at B in fig. 1.

Reference numerals illustrate:

the achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present utility model are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.

In the present utility model, unless specifically stated and limited otherwise, the terms "connected," "affixed," and the like are to be construed broadly, and for example, "affixed" may be a fixed connection, a removable connection, or an integral body; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In addition, if there is a description of "first", "second", etc. in the embodiments of the present utility model, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" as it appears throughout includes three parallel schemes, for example "A and/or B", including the A scheme, or the B scheme, or the scheme where A and B are satisfied simultaneously. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

The utility model provides a multi-parameter oil sensor.

In an embodiment of the present utility model, as shown in fig. 1 to 2, the multi-parameter oil sensor includes:

the shell 10 is provided with a main cavity 11, a wear particle cavity 12 and a multifunctional cavity 13 which are mutually separated, the wear particle cavity 12 is provided with a first liquid through hole 121 communicated with the outside, and the multifunctional cavity 13 is provided with a second liquid through hole 131 communicated with the outside;

a main controller 20 provided in the main chamber 11;

the wear particle detection module 30 is electrically connected with the main controller 20 and is at least partially arranged in the wear particle chamber 12 to detect wear particles of oil in the wear particle chamber 12; and

the multifunctional detection module 40 is electrically connected with the main controller 20 and is at least partially arranged in the multifunctional chamber 13, and the multifunctional detection module 40 can at least detect trace moisture and water activity of oil liquid in the multifunctional chamber 13.

According to the technical scheme, the abrasion particle detection module 30 and the multifunctional detection module 40 are integrated on one sensor, so that the information of the abrasion particles, trace moisture and water activity of the oil to be detected can be detected simultaneously only by installing the multi-parameter oil sensor, and the detection convenience is improved. In particular, the wear particle detection module 30 and the multifunctional detection module 40 are respectively arranged in the wear particle chamber 12 and the multifunctional chamber 13, so that the two detection modules are not interfered with each other, and the detection work can be well completed.

Optionally, the multifunctional detecting module 40 includes a dielectric constant detecting module, and/or a trace moisture detecting module, and/or a temperature detecting module, and/or a resonance detecting module, where the dielectric constant detecting module is used to detect a dielectric constant in the oil, the trace moisture detecting module is used to detect trace moisture and water activity in the oil, the temperature detecting module is used to detect a temperature in the oil, and the resonance detecting module is used to detect a density and a viscosity of the oil. That is, the multifunctional sensing module 40 can simultaneously sense physical parameters such as viscosity, density, temperature, dielectric constant, moisture, and water activity of the oil. In other embodiments, the multifunctional sensing module 40 may also include only a dielectric constant sensing module, and/or a trace moisture sensing module, and/or a temperature sensing module.

Optionally, the temperature sensing probe of the temperature detection module, the moisture detection probe of the trace moisture detection module, and the dielectric constant probe of the dielectric constant detection module are disposed in the second liquid through hole 131 and configured in the same structure. As the measuring modes of trace moisture include a capacitance method and a resistance method, when the capacitance method is adopted for measurement, the capacitance value is related to the dielectric constant, the dielectric constant of the oil liquid is changed due to the increase of the moisture content, and thus the capacitance value is changed. Therefore, the moisture detecting probe of the trace moisture detecting module and the dielectric constant probe of the dielectric constant detecting module can be configured in the same structure, that is, the integrated probe 41 capable of detecting both the dielectric constant and the capacitance. The temperature change can change the dielectric constant, the temperature detection is integrated on the comprehensive probe 41, the temperature-dielectric constant fitting result can show that the temperature-dielectric constant fitting result and the temperature-dielectric constant fitting result has a linear relationship, and the detected dielectric constant is subjected to temperature compensation, so that a more accurate dielectric constant value can be obtained. That is, in the present embodiment, the multifunctional detecting module 40 has two probes, namely, a comprehensive probe 41 and a viscosity probe 42 for detecting the viscosity of the oil on the resonance detecting module. Further, the comprehensive probe 41 includes a core electrode and an outer ring electrode, the outer ring electrode is sleeved on the outer side of the core electrode, and the outer ring electrode and the core electrode are connected with the detection tube section 15 through insulators and are electrically connected to the main controller 20. In other embodiments, the trace moisture detection module may be tested by a resistance method, the moisture content is measured by using the conductivity of the oil, and the temperature sensing probe of the temperature detection module is separately arranged relative to the probe for detecting the dielectric constant.

Optionally, the wear particle detection module 30 includes an adsorption type wear particle sensor 31 and a wear particle probe 32, where the wear particle probe 32 is blocked at an inner end surface of the first through-liquid hole 121 and is used to separate the wear particle chamber 12 from the main chamber 11, and the adsorption type wear particle sensor 31 is disposed on a side of the wear particle probe 32 facing the wear particle chamber 12. The adsorption type abrasive particle sensor is internally provided with two groups of reversely wound electromagnetic coils, an inductance acquisition chip and a magnetic field compensation algorithm are matched, ferromagnetic abrasion particles flowing on the surface of the abrasion particle probe 32 are continuously captured through alternating control of electromagnetic fields of the two groups of coils, after a set threshold value is reached, the adsorbed abrasion particles are released, an automatic cleaning function is achieved, meanwhile, the magnetic field between the two groups of electromagnetic coils can be influenced by the adsorbed ferromagnetic abrasion particles, the purpose of detecting the concentration of the abrasion particles in oil liquid is achieved, the sensor also outputs self-cleaning intervals, and judgment on abrasion exacerbation is achieved through comparison of changes of the self-cleaning intervals. In other embodiments, the wear particle detection module 30 is a conventional wear particle sensor.

Optionally, a sealing ring groove 121a is provided on the inner end surface of the first via hole 121, and the wear particle detection module 30 further includes a sealing ring 33 embedded in the sealing ring groove 121a, and the wear particle probe 32 abuts against the sealing ring 33. The tightness of the wear particle detection module 30 is enhanced, and the condition that the contact surface of the wear particle probe 32 and the first through liquid hole 121 is in clearance in the process of compression deformation after the wear particles are adsorbed is further prevented, so that the solution infiltrates into the adsorption type wear particle sensor 31 is prevented. In other embodiments, the sealing ring groove 121a may not be provided, and the sealing ring 33 may be directly disposed on the inner end surface of the first liquid through hole 121.

Alternatively, the height of the first via hole 121 ranges from 1mm to 2mm, and the diameter of the first via hole 121 ranges from 5mm to 8mm. In this range, the oil can flow smoothly in the first liquid passing hole 121, and the wear particle probe 32 has a large area for adsorbing wear particles, can adsorb more wear particles, and improves the accuracy of the detected wear particle concentration.

Optionally, the housing 10 includes a hexagonal tube section 14 and a detection tube section 15 that are connected by threads, the hexagonal tube section 14 and the detection tube section 15 together enclose a main chamber 11, and the wear particle chamber 12 and the multifunctional chamber 13 are disposed in the detection tube section 15. The multi-parameter oil sensor is convenient to assemble, and the main controller 20 or the abrasion particle chamber 12 in the main chamber 11, the adsorption abrasion particle sensor 31 in the multifunctional chamber 13 and the multifunctional probe can be conveniently taken out during maintenance. In other embodiments, it is also possible that the housing 10 enclosing the main chamber 11, the wear particle chamber 12 and the multifunctional chamber 13 is integrally formed.

Optionally, the first liquid through hole 121 and the second liquid through hole 131 are both disposed on an end surface of the detecting pipe section 15 away from the hexagonal pipe section 14. That is, the first through-hole 121 and the second through-hole 131 are both far away from the main controller 20, and when the first through-hole 121 and the second through-hole 131 leak, the oil will later contact the main controller 20. In other embodiments, the first through-liquid hole 121 and the second through-liquid hole 131 may be disposed on a side wall of the detecting pipe section 15.

Optionally, a third liquid through hole 132 is provided on the side wall of the detecting tube section 15, and the third liquid through hole 132 communicates with the second liquid through hole 131 and the outside. The liquid circulation in the multifunctional chamber 13 is enhanced, so that the probe can contact more oil, and the detection result of the multifunctional detection module 40 is more accurate. In other embodiments, the side wall of the detecting pipe section 15 may not be provided with the third liquid through hole 132.

Optionally, the multiparameter oil sensor further comprises an aviation plug 50, wherein the aviation plug 50 is arranged on the end surface of the hexagonal pipe section 14, which is far away from the detection pipe section 15. The aviation plug 50 has stable performance and good sealing performance, and when the multi-parameter oil sensor is carelessly dropped into oil, the oil cannot permeate into an aviation connector and damage electrical connectivity. Meanwhile, the aviation plug 50 is far away from the oil, so that the oil is further prevented from entering the aviation plug 50. In other embodiments, the aviation plug 50 may be provided on the side wall of the hexagonal pipe section 14.

Optionally, the multi-parameter oil sensor further includes an alarm lamp 60, where the alarm lamp 60 is disposed on an end surface of the hexagonal pipe section 14 far away from the detecting pipe section 15, and the alarm lamp 60 can emit at least red light, yellow light and green light. The green light indicates that the oil is normal, the yellow light indicates that unexpected large variation of the physical parameters of the oil occurs or adjacent warning values, and the red light indicates that the physical parameters of the oil are in a warning range and the oil needs to be replaced. In other embodiments, the alarm lamp 60 can flash light, and the number of times of flashing light is used for early warning.

The foregoing description is only of the optional embodiments of the present utility model, and is not intended to limit the scope of the utility model, and all the equivalent structural changes made by the description of the present utility model and the accompanying drawings or the direct/indirect application in other related technical fields are included in the scope of the utility model.

Claims (10)

1. A multiparameter oil sensor comprising:

the shell is provided with a main cavity, a wear particle cavity and a multifunctional cavity which are mutually separated, the wear particle cavity is provided with a first liquid passing hole communicated with the outside, and the multifunctional cavity is provided with a second liquid passing hole communicated with the outside;

the main controller is arranged in the main chamber;

the wear particle detection module is electrically connected with the main controller and is at least partially arranged in the wear particle chamber so as to detect wear particles of oil liquid in the wear particle chamber; and

the multifunctional detection module is electrically connected with the main controller and is at least partially arranged in the multifunctional cavity, and the multifunctional detection module can at least detect trace moisture and water activity of oil liquid in the multifunctional cavity.

2. The multi-parameter oil sensor of claim 1, wherein the multi-functional detection module comprises a dielectric constant detection module for detecting a dielectric constant in the oil, and/or a trace moisture detection module for detecting trace moisture and water activity in the oil, and/or a temperature detection module for detecting a temperature in the oil, and/or a resonance detection module for detecting a density and a viscosity of the oil.

3. The multiparameter oil sensor according to claim 2, wherein the temperature sensing probe of the temperature detection module, the moisture detection probe of the trace moisture detection module, and the dielectric constant probe of the dielectric constant detection module are provided in the second liquid passage hole and are configured in the same structure.

4. The multi-parameter oil sensor of claim 1, wherein the wear particle detection module comprises an adsorption type wear particle sensor and a wear particle probe, the wear particle probe is plugged at an inner end surface of the first via and is used for separating the wear particle chamber from the main chamber, and the adsorption type wear particle sensor is arranged on one side of the wear particle probe facing the wear particle chamber.

5. The multiparameter oil sensor of claim 4, wherein the first fluid passage has a sealing ring groove on an inner end surface thereof, wherein the wear particle detection module further comprises a sealing ring embedded in the sealing ring groove, and wherein the wear particle probe abuts against the sealing ring.

6. The multi-parameter oil sensor of claim 1, wherein the height of the first via is in the range of 1mm to 2mm; and/or the diameter of the first liquid through hole is in a range of 5mm to 8mm.

7. The multi-parameter oil sensor of claim 1, wherein the housing comprises a hexagonal tube section and a detection tube section that are threadably connected to each other, the hexagonal tube section and the detection tube section collectively enclosing the main chamber, the wear particle chamber and the multi-functional chamber being disposed in the detection tube section.

8. The multi-parameter oil sensor of claim 7, wherein the first fluid passage and the second fluid passage are both disposed on an end surface of the detection tube segment remote from the hexagonal tube segment.

9. The multi-parameter oil sensor of claim 8, wherein a third fluid via is provided on a sidewall of the test tube section, the third fluid via communicating the second fluid via with the outside.

10. The multi-parameter oil sensor of claim 7, further comprising an aviation plug disposed on an end face of the hexagonal pipe section remote from the detection pipe section;

and/or, the multiparameter oil sensor further comprises an alarm lamp, wherein the alarm lamp is arranged on the end face of the hexagonal pipe section, which is far away from the detection pipe section, and the alarm lamp can at least emit red light, yellow light and green light.