CN2935151Y

CN2935151Y - Device for testing detergency of lubricant

Info

Publication number: CN2935151Y
Application number: CN 200620078511
Authority: CN
Inventors: 张德民; 李�荣; 张佳
Original assignee: 张德民
Priority date: 2006-02-28
Filing date: 2006-02-28
Publication date: 2007-08-15
Anticipated expiration: 2016-02-28

Abstract

The utility model is a simulative test device for the lustrating capability of the lubricating oil. The coke test panel is fixed on the heater by a work piece-holder means, and the working face is upward and inclined. The vitta outlet of the shuttle mechanism is arranged above the upper end of the working face of the coke test panel whose lower end provided with a collecting container, and the vitta inlet connects with a metering pump whose vitta inlet insert a lubricating oil container. The metering pump supplies the lubricating oil for test toward the coke test panel. The device simulates the trend of the generation of the coke and the paint film by the engine piston, the ring groove and the skirt section. The device consumes the lubricating oil for test about only fifteen milliliters, and has a good relativity with the engine skid bed test. The cost is low, the operation is simple, the reproducibility is good, and the sphere of application is wide. The device applies to the filtration of the oil quality formula, and the sampling monitor before and after the basic oil and the compound additive have been blended. The device also applies to the supervisory of the lustrating capability of the lubricating oil by the lubricating oil sales department and the technology supervisory department.

Description

Lubricating oil detergency proving installation

Technical field the utility model relates to a kind of simulating test device, specifically a kind of lubricating oil detergency simulating test device.

It is real vehicle site test and engine rig test that background technology is measured the lubricating oil usability the most reliable, the former is because influence factor is too many, test findings is difficult to guarantee to obtain satisfied Repeatability and Reproducibility, can not be as the unified assessment method of oil product.The latter has been developed a series of engine tests in the U.S. so far from 1940, these tests all are to carry out under the condition of the strict control in laboratory, test findings has satisfied Repeatability and Reproducibility, and better correlation is arranged with the real vehicle site test, be widely used as the laboratory engine assessment method of oil specification.But its weak point is: experimental period is long, the testing equipment costliness, and testing expenses are very high, should not be as the primary screening test of oil dope and prescription.Therefore a large amount of shaker test and the fundamental tests in laboratory can only be born by simple, quick, economic simulation test.

Now be used to evaluate the simulated test facility of lubricating oil high-temp cleansing performance both at home and abroad, using was board-like coking device more widely, and it became u.s. federal standard method [FTM.STD.3462] in 1961.The applicant developed first board-like coking device of production domesticization in 1989, identify and popularization through main office of China Petrochemical Industry, was applied in China.But find that in actual use it has following problem: 1. the equipment repeatability is relatively poor, board-like coking device structure is that workplace is tilting down, test is splashed on the coking plate by the steel wire that rotates from the oil groove of below with lubricating oil, because the too thin too soft attitude that is easy to change of steel wire, the slight error of workpiece processing and assembling in addition, cause spattering oil mass and the random variation of coking amount, so no matter import and homemade board-like coking device are difficult to find out two equipment that can make equifinality and come.2. experimental repeatability is relatively poor, because each test oil mass that adds is manually-operated, can have influence on the height of oil level, and the relative position of steel wire on liquid level determined to be splashed to the oil mass on the breadboard, so test findings is easy to generate deviation.3. because this equipment is the metal oil groove, and the workplace of breadboard is buckled in the oil groove top downwards, can't observe lubricating oil and flow and the evolution process of coking at breadboard, bring very big difficulty for the foundation and the formula development of test method.Because above-mentioned three kinds of defectives make this equipment fail to set up the cover test method relevant with engine pedestal, also are the major reasons that it fails to become China's industry and national standard test method all the time always.

The summary of the invention the purpose of this utility model provides a kind of experimental repeatability and repeatability is good, Coking Process is intuitively visual, and expense is low, easy and simple to handle, be easy to popularize and with engine rig test the lubricating oil detergency simulating test device of good correlation is arranged.

To achieve these goals, the technical scheme that the utility model is taked is: a kind of lubricating oil detergency proving installation, its coke test plate is placed on the well heater, coke test plate workplace up and be the inclined-plane, clamp system is fixed on the coke test plate on the well heater, back and forth the outlet of travel mechanism oil pipe is arranged on the high-end top of coke test plate workplace, back and forth the import of travel mechanism oil pipe is connected with volume pump, the oil pipe inlet of volume pump inserts in the lubricating oil container, and the lower end of coke test plate workplace is provided with a collection container.

The above-mentioned lubricating oil detergency proving installation that the utility model provides owing to adopted precision metering pump, has replaced the steel wire that spatters oil, and therefore the Repeatability and Reproducibility of test has obtained the improvement of essence; The breadboard workplace is placed up process of the test is become intuitively, operates easier; Owing to increased 70 percent than existing board-like coking device breadboard workplace, so experimental period has shortened half, test oil also is reduced to 15 milliliters by original 300 milliliters, and, obtain and the good correlationship of engine rig test easily by changing temperature, flow, time.The utility model is a kind of easy economy, universal wide simulation test device, it not only can detect the detergency of I. C. engine oil, and can detect the high temperature detergency of base oil and other lubricating oil, be applicable to that lubricating oil research and development and production unit carry out the sampling monitoring of oil formula screening and compound additive mediation front and back, be applicable to that also lubricating oil sales department carries out the quality discriminating to the detergency of various lubricating oil, the user can select relieved oil product by identification result.

Appended drawings is the structural representation of the utility model embodiment

Among the figure: 1-coke test plate; The 2-well heater; The 3-clamp system; The reciprocal travel mechanism of 4-; The 5-oil pipe; 6-lubricating oil container; The 7-volume pump; The 8-collection container.

Embodiment as shown in the figure, among the embodiment of the lubricating oil detergency proving installation that the utility model provides, its coke test plate 1 is placed on the well heater 2, clamp system 3 is fixed on coke test plate 1 on the well heater 2, the workplace of coke test plate 1 up and be the inclined-plane, workplace along oil flow direction is shape or spill low between the senior middle school of both sides, its cross section can be a rectangle, triangular form, camber, semi-circular or ladder type, its lower end side-looking section shape is a camber, the hypotenuse type, the slope type, watt shape or olecranon type are so that lubricating oil effectively flows in the collection container 8.That well heater 2 can adopt is plate, L type, △ type, semi-circular or ladder type, also is the inclined-plane, suitable with the bottom surface of coke test plate 1.Clamp system 3 utilizes the pressure of spring to push down coke test plate 1 two ends respectively, also can use screw-clamped.Back and forth oil pipe 5 outlets of travel mechanism 4 are arranged on the high-end top of coke test plate 1 workplace, and back and forth travel mechanism 4 is a linear reciprocating motion, available tooth bar mode, also available cylinder-connecting rod mode, screw mandrel mode or connecting rod of eccentric wheel mode.Back and forth oil pipe 5 imports of travel mechanism 4 are connected with volume pump 7, and oil pipe 5 inlets of volume pump 7 insert in the lubricating oil containers 6, volume pump 7 dependable flows steadily, accurate, can be syringe pump, peristaltic pump, constant-flux pump or infusion pump.The lower end of coke test plate 1 workplace is provided with a collection container 8.

Above-mentioned lubricating oil detergency proving installation, under the draft effect of volume pump 7, lubricating oil oil pipe 5 through linking to each other with reciprocal travel mechanism 4 from container 6 evenly flows to coke test plate 1, because the effect of gravity, lubricating oil flows along coke test plate 1 workplace that tilts is top-down, under the effect of well heater 2 heating, progressively form and engine piston on the workplace, the ejusdem generis sediment in annular groove and skirt section---carbon deposit and paint film, these sediment weight are directly proportional with the piston deposit scoring, so just simulated engine rig test easily, and the simulation test expense be ten thousand of bench test expense/, so be very economical.

Claims

1, a kind of lubricating oil detergency simulating test device, the coke test plate (1) that it is characterized in that this device is placed on the well heater (2), the workplace of coke test plate (1) up and be the inclined-plane, clamp system (3) is fixed on coke test plate (1) on the well heater (2), back and forth the outlet of the oil pipe (5) of travel mechanism (4) is arranged on the high-end top of coke test plate (1) workplace, back and forth oil pipe (5) import of travel mechanism (4) is connected with volume pump (7), oil pipe (5) inlet of volume pump (7) inserts in the lubricating oil container (6), and the lower end of coke test plate (1) workplace is provided with a collection container (8).

2, proving installation according to claim 1 is characterized in that: above-mentioned coke test plate (1) is shape or spill low between the senior middle school of both sides along the surface of oil flow direction, and its cross section is rectangle, triangular form, camber, semi-circular or ladder type; The low side side-looking section shape of coke test plate (1) is camber, hypotenuse type, sloping type, watt shape or olecranon type.

3, proving installation according to claim 1 is characterized in that: above-mentioned well heater (2) adopts plate, the L type suitable with coke test plate (1) bottom surface, △ type, semi-circular or ladder type.

4, proving installation according to claim 1 is characterized in that: above-mentioned clamp system (3) utilizes the pressure of spring to push down coke test plate (1) two ends respectively, or uses screw-clamped.

5, proving installation according to claim 1 is characterized in that: above-mentioned volume pump (7) adopts syringe pump, peristaltic pump, constant-flux pump or infusion pump.

6, proving installation according to claim 1 is characterized in that: above-mentioned reciprocal travel mechanism (4) is for realizing tooth bar mode, cylinder tie rod mode, screw mandrel mode or the connecting rod of eccentric wheel mode of linear reciprocating motion.