CN210108694U - Oil pump assembly comprehensive detection system - Google Patents
Oil pump assembly comprehensive detection system Download PDFInfo
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- CN210108694U CN210108694U CN201920764976.4U CN201920764976U CN210108694U CN 210108694 U CN210108694 U CN 210108694U CN 201920764976 U CN201920764976 U CN 201920764976U CN 210108694 U CN210108694 U CN 210108694U
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Abstract
The utility model discloses an oil pump assembly comprehensive testing system, including base, electric jar, servo motor, resistance collector and float lifting device. An oil pump assembly to be detected is installed on the base, one end of the float lifting device is arranged below a float of a liquid level sensor of the oil pump assembly and is in contact with the float, the other end of the float lifting device is connected with the electric cylinder and drives the float to move under the driving of the electric cylinder, the servo motor is connected with the electric cylinder and feeds back the position of the float lifting device, the resistance collector is connected with the liquid level sensor and collects the resistance of the liquid level sensor, and the continuity test of the liquid level sensor is completed by utilizing the corresponding relation between the collected resistance and the position. The utility model discloses a check point continuity is good, and the sampling is continuous in the float floating range, can not appear the detection position just in time skip the condition that the defect point leads to erroneous judgement.
Description
Technical Field
The utility model relates to an oil pump field, concretely relates to oil pump assembly integrated detection system and level sensor detection method.
Background
The oil pump assembly is a key component of an automobile engine and the like, and the detection of a liquid level sensor of the oil pump assembly is very important. However, the existing detection is mostly performed manually, the float of the liquid level sensor is lifted by hands to simulate the liquid level to rise and fall, and the corresponding resistance values of only a few positions are measured. And then whether the product is qualified or not is judged by sampling. The whole test process is discontinuous, the test point position of the product is single, the coverage is small, the phenomena of missing detection and incomplete detection are easy to occur, and unqualified products are caused to flow to the market.
For the polarity detection of the motor of the oil pump assembly, the current method is to detect the air flow of the impeller, when the motor rotates forwards, wind is generated, and when the motor rotates backwards, no wind is generated, so that the forward rotation and the reverse rotation of the motor and the polarity are judged.
Aiming at the detection of the rotating speed of the motor, the existing method mainly detects how much oil can be pumped out by one circle of the impeller, so that the rotating speed of the motor is estimated, and the detection result is inaccurate.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an oil pump assembly integrated detection system to solve the problem that exists among the above-mentioned prior art.
In order to solve the problem, according to the utility model discloses an aspect provides an oil pump assembly integrated detection system, oil pump assembly integrated detection system includes base, electric jar, servo motor, resistance collector and float lifting device, waits to detect the oil pump assembly install in on the base, float lifting device's one end set up in oil pump assembly's level sensor's float below and with the float contact, float lifting device's the other end with electric jar is connected and is driven under electric jar's drive the float motion, servo motor with electric jar is connected and is fed back float lifting device's position, resistance collector is connected and gathers level sensor's resistance with level sensor, utilizes the resistance of gathering and the corresponding relation of position to accomplish level sensor's continuity test.
In one embodiment, the oil pump assembly comprehensive detection system further comprises a polarity sensor, and the polarity sensor is mounted on the base and is matched with the oil pump assembly to detect the polarity of the motor of the oil pump assembly.
In one embodiment, the oil pump assembly comprehensive detection system further comprises a collecting board card, and the collecting board card is connected with the oil pump assembly and collects voltage pulse signals generated when a commutator of the oil pump assembly is alternated.
In one embodiment, the oil pump assembly comprehensive detection system further comprises a programmable power supply, and the programmable power supply is connected with a motor of the oil pump assembly to provide different voltages for the motor.
In one embodiment, the resistance collector samples the resistance of the level sensor from 100 times per second to 3000 times per second.
In one embodiment, the resistance collector collects the resistance of the float sensor when the float lifting device is positioned at the lowermost end and the uppermost end.
In one embodiment, the oil pump assembly comprehensive detection system further comprises a positioning piece, the positioning piece is installed on the base and positions the oil pump assembly, wherein the positioning piece comprises a first part and a second part which are independent of each other, the first part has a rectangular outline, a V-shaped installation groove is formed in the side portion of the second part, the oil pump assembly is fixed between the first part and the second part and located in the V-shaped groove, magnetic pieces are further arranged at the bottoms of the first part and the second part, and the first part and the second part are fixed on an installation table of the oil pump assembly through the magnetic pieces.
In one embodiment, the float lifting device is an L-shaped plate, the vertical portion of which is mounted on the electric cylinder, and the horizontal portion of which extends below the float.
In one embodiment, the horizontal portion of the L-shaped plate is provided with a groove extending along the horizontal portion. In one embodiment, the oil pump assembly comprehensive detection system is arranged in such a way that the electric cylinder drives the float lifting device to move at a constant speed.
The utility model discloses be in an embodiment, oil pump assembly integrated detection system is including gathering integrated circuit board and programmable power supply, gather the integrated circuit board with the oil pump assembly is connected and is caught the voltage pulse signal that produces when the commutator of oil pump assembly is in turn, programmable power supply with oil pump assembly connects in order to provide different voltages.
The utility model discloses an each technical scheme has partial or whole following technological effect at least:
(1) the utility model discloses a detection system is synthesized to oil pump assembly can realize simultaneously carrying out the integrated detection to the rotational speed of the polarity of the level sensor of oil pump assembly, motor and motor, and the integrated detection improves production efficiency, because the detection of polarity, electric current, resistance all is in same frock, detects simultaneously, will save than the time of measuring relevant content respectively.
(2) The conventional motor polarity detection method of polarity detection about motor is the air current that detects the impeller, and is windy when the motor corotation, does not have wind when the motor reversal to judge positive reversal, the polarity of motor, however, because the requirement to the aspect of the environmental protection improves at present, is provided with the filter core ware in the position of oil-out, thereby leads to original detection method to become invalid basically, and the utility model discloses an use polarity sensor to detect the motor inner rotor, the direct positive reversal that detects the motor has solved the problem that current detection method is invalid basically after installing the filter core ware additional.
(3) The existing method for detecting the rotating speed of the motor mainly comprises the steps of detecting how much oil can be pumped out by one circle of an impeller, so that the rotating speed of the motor is estimated, and a detection result is inaccurate. And this application utilizes the commutator and the carbon brush that the motor has, after the carbon brush sweeps the commutator, can form a current peak value, and this application finds the rotational speed through calculating the current peak value to the testing result is accurate.
(4) The detection of the liquid level sensor of the oil pump assembly has the following beneficial technical effects:
firstly, the detection continuity is good, the sampling is continuous in the float floating range, and the condition that the detection position just skips over a defect point to cause misjudgment can not occur;
secondly, detection accuracy is high, and because the electric cylinder is lifted at a constant speed and the position is fed back by the servo motor, the position and resistance value have high correspondence. The manual detection position error is large, and the resistance value correspondence is low. The situation of misjudgment can also exist;
and the detection precision is high, and the acquisition density is high, so that 3000 times/second can be realized, the detection precision is higher, and the full coverage is basically realized.
Drawings
Fig. 1 is a schematic perspective view of the oil pump assembly comprehensive detection system of the present invention.
Fig. 2 is a schematic perspective view of the positioning member of the present invention.
Detailed Description
The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings so that the objects, features and advantages of the invention can be more clearly understood. It should be understood that the embodiments shown in the drawings are not intended as limitations on the scope of the invention, but are merely illustrative of the true spirit of the technical solution of the invention.
In the following description, for the purposes of illustrating various disclosed embodiments, certain specific details are set forth in order to provide a thorough understanding of the various disclosed embodiments. One skilled in the relevant art will recognize, however, that the embodiments may be practiced without one or more of the specific details. In other instances, well-known devices, structures and techniques associated with this application may not be shown or described in detail to avoid unnecessarily obscuring the description of the embodiments.
Reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment. Thus, the appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
In the following description, for the sake of clarity, the structure and operation of the present invention will be described with the aid of directional terms, but the terms "front", "rear", "left", "right", "outer", "inner", "outer", "inward", "upper", "lower", etc. should be understood as words of convenience and not as words of limitation.
The detection process of the existing oil pump assembly is as follows:
firstly, the oil pump assembly is placed on a test board, and different oil pump assemblies need to be positioned corresponding to different tools.
And the original test is to manually lift or lower the product liquid level raft to a specified position for measurement, and then read data through an instrument for testing.
These processes have the following drawbacks:
first, the number of tools is very large. At present, the shape of the oil pump assembly on the market is not totally counted, and is at least thousands of. The universality of the existing tool is very poor. The cost is high. The maintenance difficulty is high.
Secondly, the whole testing process is discontinuous, the testing point position of the product is single, the coverage is small, the phenomena of missing detection and incomplete detection are easy to occur, and unqualified products are caused to flow to the market.
The utility model discloses an oil pump assembly comprehensive testing system is generally disclosed, on the one hand can be used for detecting the level sensor in the oil pump assembly, on the other hand the utility model discloses an oil pump assembly comprehensive testing system can also be used for detecting the polarity and the rotational speed polarity of the motor of oil pump assembly. The comprehensive detection system for the oil pump assembly comprises a base, an electric cylinder, a servo motor, a resistance collector and a floater lifting device. The oil pump assembly liquid level sensor to be detected is installed on the base, one end of the float lifting device is connected with a float of the liquid level sensor of the oil pump assembly, the other end of the float lifting device is connected with the electric cylinder and drives the float to move under the driving of the electric cylinder, the servo motor is connected with the electric cylinder and feeds back the position of the float lifting device, the resistance collector is connected with the liquid level sensor and collects the resistance of the liquid level sensor, and the continuity test of the liquid level sensor is completed by utilizing the corresponding relation between the collected resistance and the position. The integrated detection system for the oil pump assembly can also comprise a polarity sensor and a collecting card, wherein the polarity sensor is arranged on the base and is matched with the oil pump assembly to detect the polarity of the motor of the oil pump assembly, the collecting card is connected with the oil pump assembly and is used for collecting voltage pulse signals generated when a commutator of the oil pump assembly is alternated, and the rotating speed of the motor is calculated according to the voltage pulse signals. Some embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
Fig. 1 is a perspective view of an oil pump assembly comprehensive detection system according to an embodiment of the present invention. As shown in fig. 1, the oil pump assembly comprehensive detection system 100 includes a base 10, an electric cylinder 20, a servo motor 30, a resistance collector (not shown), and a float lifting device 40. The oil pump assembly 200 to be tested is mounted on the base 10, the liquid level sensor is mounted inside the oil pump assembly 200, and the float 50 of the liquid level sensor extends out of the oil pump assembly 200. One end of the float lifting device 40 is connected with a float 50 of the liquid level sensor, the other end of the float lifting device 40 is connected with the electric cylinder 20 and drives the float 50 to move under the driving of the electric cylinder 20, the servo motor 30 is connected with the electric cylinder 20 and feeds back the position of the float lifting device 40, the resistance collector (not shown) is connected with the liquid level sensor and collects the resistance of the liquid level sensor, and the continuity test of the liquid level sensor is completed by utilizing the corresponding relation between the collected resistance and the position.
With continued reference to fig. 1, the oil pump assembly comprehensive detection system 100 further includes a polarity sensor 60, the polarity sensor 60 being mounted on the base 10 and located at a side of the oil pump assembly 200, the polarity sensor 60 being disposed substantially perpendicular to the float lifting device 40. The polarity sensor 60 may employ a PCE polarity sensor. The polarity sensor 60 is used for detecting the movement of the rotor in the motor in the oil pump assembly 50, and the positive and negative rotation of the motor is directly detected, so that the problem that the existing detection method is basically invalid after the filter element device is installed is solved.
In one embodiment, the oil pump assembly comprehensive detection system 100 further includes a data acquisition board and a programmable power supply (not shown), the programmable power supply is connected to the oil pump assembly and provides different voltages for the oil pump assembly, and the acquisition board is connected to the oil pump assembly and reads corresponding frequency signals at different voltages. And measuring different frequencies under different voltage conditions, and calculating to obtain corresponding rotating speed.
With continued reference to fig. 1, the oil pump assembly comprehensive detection system 100 further includes a positioning member 11, and the positioning member 11 is mounted on the base 10 and positions the oil pump assembly 200. One embodiment of the positioning member 11 is described below with reference to fig. 2.
As shown in fig. 2, the positioning member 11 includes a first portion 112 and a second portion 111 that are independent of each other. Wherein, the first part 112 has a rectangular profile, the second part 111 is provided at a side thereof with a V-shaped mounting groove 1114, and the oil pump assembly 200 is fixed between the first part 112 and the second part 111 and is located in the V-shaped mounting groove 1114.
With continued reference to fig. 2, the two sides of the V-shaped mounting groove 1114 respectively form a first extending portion 1111 and a second extending portion 1112, the width of the first extending portion 1111 gradually increases upwards along the V-shaped mounting groove 1114, and the width of the second extending portion 1112 gradually increases downwards along the V-shaped mounting groove 1114, as can be seen from the figure, the width of the bottom end of the second extending portion 1112 is significantly greater than the width of the top end of the first extending portion 1111. The most obvious advantage of such an arrangement is that the positioning range of the positioning member 11 can be made large, and the positioning member can be adapted to different oil drums of different oil pump assemblies.
Referring back to fig. 1, in the present embodiment, the float lifting means 40 is an L-shaped plate, a vertical portion 41 of which is fixedly mounted on the electric cylinder 20, and a horizontal portion 42 of which extends below the float 50. The L-shaped plate horizontal portion 42 is provided with a groove 421 extending along the horizontal portion. The float 50 is fittingly placed on the L-groove 421.
When in detection, the oil pump assembly 200 to be detected is firstly installed on the base 10 and is fixed by the oil pump assembly 200 with 11 positioning pieces. Then the plug is inserted into the power socket of the oil pump, the motor is rotated by electrifying, and the resistance of the floater at the lowest end is detected. Then the lifting tool works, the electric cylinder 20 drives the float lifting device 40 to ascend, and when the horizontal part 42 of the lifting device 40 contacts the float 50 of the oil pump liquid level sensor, the float is lifted to simulate the liquid level to rise.
The rise and fall of the floater 50 causes the resistance value of the liquid level sensor to change, the resistance collector samples the changed resistance value, and the sampling frequency is 100 times/second to 3000 times/second.
The servo motor 30 feeds back the position of the float lifting device 40, that is, the position of the float 50, so as to correspond the position of the float 50 to the changed resistance value, completing the continuity test. In the detection process, the electric cylinder 20 performs a uniform motion, and the resistance collector collects the resistance of the float sensor when the float lifting device 40 is located at the lowermost end and the uppermost end.
Compared with the existing manual detection (the float is lifted by hands to simulate the lifting of the liquid level, and only the corresponding resistance values of a plurality of positions are detected, and whether the detection is qualified is judged by sampling), the detection method of the float sensor has good continuity, the sampling is continuous in the float floating range, and the situation that the detection position just skips over a defect point to cause misjudgment can not occur; the precision is high, and the electric cylinder is lifted at a constant speed and the position is fed back by the servo motor, so that the position and the resistance value have high correspondence. The manual detection position error is large, and the resistance value correspondence is low. The situation of misjudgment can also exist; 3000 times/second can be achieved, the detection precision is higher, and the full coverage is basically achieved.
To sum up, the utility model discloses an oil pump assembly integrated detection system can realize simultaneously carrying out the integrated detection to the rotational speed of the polarity of the level sensor of oil pump assembly, motor and motor, and the integrated detection improves production efficiency, because the detection of polarity, electric current, resistance all is in same frock, detects simultaneously, will save than the time of measuring relevant content respectively.
The preferred embodiments of the present invention have been described in detail, but it should be understood that various changes and modifications can be made by those skilled in the art after reading the above teaching of the present invention. Such equivalents are intended to fall within the scope of the claims appended hereto.
Claims (10)
1. The utility model provides an oil pump assembly integrated detection system, its characterized in that, oil pump assembly integrated detection system includes base, electric jar, servo motor, resistance collector and float lifting device, waits to detect the oil pump assembly install in on the base, float lifting device's one end set up in oil pump assembly's level sensor's float below and with the float contact, float lifting device's the other end with the electric jar is connected and is driven under the drive of electric jar the float motion, servo motor with the electric jar is connected and is fed back float lifting device's position, resistance collector is connected and gathers level sensor's resistance with level sensor, utilizes the resistance of gathering and the corresponding relation completion level sensor's of position continuity test.
2. The oil pump assembly comprehensive detection system of claim 1, further comprising a polarity sensor mounted on the base and cooperating with the oil pump assembly to detect a motor polarity of the oil pump assembly.
3. The oil pump assembly comprehensive detection system of claim 1, further comprising a collection board card connected to the oil pump assembly and collecting voltage pulse signals generated when a commutator of the oil pump assembly is alternated.
4. The oil pump assembly comprehensive detection system of claim 3, further comprising a programmable power supply connected to the motor of the oil pump assembly to provide different voltages to the motor.
5. The oil pump assembly comprehensive detection system of claim 1, wherein the resistance collector samples the resistance of the liquid level sensor from 100 times per second to 3000 times per second.
6. The oil pump assembly integrated detection system of claim 1, wherein the resistance collector collects the resistance of the level sensor when the float lifting device is positioned at the lowermost end and the uppermost end.
7. The oil pump assembly comprehensive detection system according to claim 1, further comprising a positioning member, wherein the positioning member is installed on the base and positions the oil pump assembly, wherein the positioning member comprises a first portion and a second portion which are independent of each other, the first portion has a rectangular profile, a V-shaped installation groove is formed in a side portion of the second portion, the oil pump assembly is fixed between the first portion and the second portion and located in the V-shaped installation groove, a magnetic member is further arranged at bottoms of the first portion and the second portion, and the first portion and the second portion are fixed on the installation table of the oil pump assembly through the magnetic member.
8. The oil pump assembly comprehensive detection system of claim 7, wherein the float lifting device is an L-shaped plate, a vertical portion of the L-shaped plate is mounted on the electric cylinder, and a horizontal portion of the L-shaped plate extends below the float.
9. The oil pump assembly integrated inspection system of claim 8, wherein said L-shaped plate horizontal portion is provided with a groove extending along the horizontal portion.
10. The system of claim 3, wherein the system is configured such that the electric cylinder drives the float lifting device to move at a constant speed.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920764976.4U CN210108694U (en) | 2019-05-24 | 2019-05-24 | Oil pump assembly comprehensive detection system |
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| CN201920764976.4U CN210108694U (en) | 2019-05-24 | 2019-05-24 | Oil pump assembly comprehensive detection system |
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| CN210108694U true CN210108694U (en) | 2020-02-21 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110057568A (en) * | 2019-05-24 | 2019-07-26 | 上海烁范自动化设备有限公司 | Oil pump assy comprehensive detection system and liquid level sensor detection method |
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2019
- 2019-05-24 CN CN201920764976.4U patent/CN210108694U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110057568A (en) * | 2019-05-24 | 2019-07-26 | 上海烁范自动化设备有限公司 | Oil pump assy comprehensive detection system and liquid level sensor detection method |
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Address after: Building 5, No. 6, Dongzhou Road, Bixi Street, Changshu City, Suzhou City, Jiangsu Province, 215500 Patentee after: Jiangsu Shuofan Intelligent Equipment Co.,Ltd. Address before: 201206 1F-2F, Building 1, No. 1239, Huadong Road, Pudong New Area, Shanghai Patentee before: SHANGHAI SHUOFAN AUTOMATION EQUIPMENT Co.,Ltd. |
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