Lubricating grease permeability testing device

Abstract

The utility model discloses a lubricating grease permeability testing device which comprises a collector, a sealing element arranged at an opening of the collector and a funnel connected with the sealing element, the funnel is reversely erected on the collector, the sealing element and the collector are tightened, and then the funnel and the collector are tightened to obtain an assembled component; scales are arranged on the pipette, so that the amount of the base oil is convenient to observe, the lower part of the pipette is sleeved with the sealing plug, the pipette penetrates through the sealing plug, the lower end of the sealing plug is conical, and the outer diameter of the upper part of the sealing plug is greater than the diameter of the opening of the funnel, so that the sealing plug can be conveniently inserted into the opening of the funnel, the sealing is kept, and the base oil is prevented from leaking; a first filter screen, a sample and a second filter screen are sequentially arranged at the joint of the funnel and the sealing element from top to bottom, and the testing device is simple in structure, low in manufacturing cost, convenient to operate, capable of being repeatedly used and low in testing cost.

Description

Technical Field

[0001] The utility model relates to the technical field of testing devices, in particular to a grease permeability testing device. Background Art

[0002] Grease is a thick, oily semisolid. It is used in the friction parts of machinery to lubricate and seal. It is also used on metal surfaces to fill gaps and prevent rust. It is mainly made of mineral oil (or synthetic lubricant) and thickener. The working principle of grease is that the thickener keeps the oil in the position where lubrication is required, and when there is a load, the thickener releases the oil, thereby playing a lubricating role.

[0003] Currently, the dripping time method can be used to effectively test the permeability of lubricating oils. However, the testing equipment is large in size, inconvenient to operate, and the cost of the equipment is high, resulting in high testing costs. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a grease permeability test device, comprising a collector, a sealing member arranged at the opening of the collector and a funnel connected to the sealing member, the funnel is reversely mounted on the collector, the sealing member is tightened with the collector, and then the funnel is tightened with the collector to obtain an assembled component;

[0005] The connection between the funnel and the sealing member is provided with a first filter screen, a sample, and a second filter screen in sequence from top to bottom.

[0006] Preferably, the device further comprises a pipette, and a scale is arranged on the pipette.

[0007] Preferably, a sealing plug is sleeved on the lower part of the pipette, and the pipette passes through the sealing plug.

[0008] Preferably, the lower end of the sealing plug is conical, and the outer diameter of the upper part of the sealing plug is larger than the diameter of the funnel opening.

[0009] Preferably, the collector is provided with an opening at the top and a cavity is provided inside the collector.

[0010] Preferably, the sealing member is in the form of a circular ring, and an outer wall of the sealing member is provided with an external thread.

[0011] Preferably, a boss is provided in the middle of the outer wall of the sealing member, the boss is in a circular ring shape, and the outer diameter of the boss is larger than the outer diameter of the sealing member.

[0012] Preferably, a sealing ring is bonded to one side end of the sealing member.

[0013] Preferably, a first groove and a second groove are provided in the funnel, the first groove is used for placing the first filter screen, and the second groove is used for placing the second filter screen.

[0014] Preferably, an inner wall at the opening of the funnel is provided with an internal thread corresponding to the sealing member.

[0015] Technical effects and advantages of the utility model:

[0016] In the utility model, the testing device has a simple structure, low manufacturing cost, is easy to operate, can be reused, and has a low testing cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of a grease permeability testing device provided in an embodiment of the present application;

[0018] Figure 2 is a cross-sectional view of a grease permeability testing device provided in an embodiment of the present application;

[0019] Figure 3 The grease permeability test device provided in the embodiment of the present application Figure 2 A schematic diagram of the structure enlargement at the center A;

[0020] Figure 4 is a schematic diagram of the structure of a collector in a grease permeability testing device provided in an embodiment of the present application;

[0021] Figure 5 is a schematic structural diagram of a seal in a grease permeability testing device provided in an embodiment of the present application;

[0022] Figure 6 It is a schematic diagram of the structure of the funnel in the grease permeability testing device provided in the embodiment of the present application.

[0023] In the figure: 1. collector; 2. sealing member; 21. boss; 22. sealing ring; 3. funnel; 31. first groove; 32. second groove; 4. pipette; 5. sealing plug; 6. first filter; 7. sample; 8. second filter. DETAILED DESCRIPTION

[0024] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific purposes.

[0025] See also Figures 1 to 3In this embodiment, a grease permeability testing device is provided, including a collector 1, a seal 2 arranged at the opening of the collector 1 and a funnel 3 connected to the seal 2, the larger opening of the funnel 3 is downward, and the smaller opening of the funnel 3 is upward, the funnel 3 is placed upside down on the collector 1, the seal 2 is tightened with the collector 1, and then the funnel 3 is tightened with the collector 1 to obtain an assembled component.

[0026] In this embodiment, a scale is provided on the pipette 4 to facilitate observation of the amount of base oil. A sealing plug 5 is mounted on the lower part of the pipette 4, and the pipette 4 passes through the sealing plug 5. The lower end of the sealing plug 5 is tapered, and the outer diameter of the upper part of the sealing plug 5 is larger than the diameter of the opening of the funnel 3, so that the sealing plug 5 can be conveniently inserted into the opening of the funnel 3 to maintain a seal and prevent leakage of the base oil.

[0027] In this embodiment, the connection between the funnel 3 and the seal 2 is provided with a first filter screen 6, a sample 7 and a second filter screen 8 in sequence from top to bottom. The funnel 3 is placed upside down on the collector 1, the first filter screen 6 is placed in the funnel 3, the sample 7 is placed on the first filter screen 6 with a scraper, and the surface is scraped flat, the excess sample 7 is scraped off, the second filter screen 8 is placed on the sample 7, and then the seal 2 and the funnel 3 are tightened.

[0028] See also Figure 4 As shown, the collector 1 is provided with an opening at the top and a cavity is provided inside the collector 1 so that the base oil flowing out of the first filter screen 6 and the second filter screen 8 is collected by the collector 1 .

[0029] See also Figure 5 As shown, the seal 2 is in the form of a circular ring, the outer wall of the seal 2 is provided with an external thread, a boss 21 is provided in the middle of the outer wall of the seal 2, the boss 21 is in the form of a circular ring, and the outer diameter of the boss 21 is larger than the outer diameter of the seal 2, and a sealing ring 22 is bonded to one side end of the seal 2. When the seal 2 and the funnel 3 are tightened, the sealing ring 22 abuts against the second filter screen 8, so that the second filter screen 8 remains open, thereby avoiding a large deformation of the second filter screen 8.

[0030] See also Figure 6 As shown, a first groove 31 and a second groove 32 are provided in the funnel 3. The first groove 31 is used to place the first filter screen 6, and the second groove 32 is used to place the second filter screen 8. An internal thread is provided on the inner wall of the opening of the funnel 3 corresponding to the sealing member 2.

[0031] The working principle of the utility model is:

[0032] When in use, scrub the components of the test device with petroleum ether, and then dry them naturally, place the funnel 3 upside down on the collector 1, install the first filter screen 6 into the first groove 31, use a scraper to install the sample 7 into the first groove 31, scrape the surface flat, scrape off the excess sample 7 along the edge of the first groove 31, install the second filter screen 8, tighten the seal 2 and the funnel 3, invert the assembled seal 2 and funnel 3, and place them on the collector 1, add base oil to the funnel 3 until it is 2 cm from the opening of the funnel 3, use a pipette 4 equipped with a sealing plug 5 to take 5 ml of base oil and insert it into the opening of the funnel 3, keep it sealed to prevent the base oil from leaking, start calculating from the base oil level in the pipette 4 when the scale is 0, read the liquid surface volume once every 24 hours, record the liquid surface volume 3 times during the 72-hour test, calculate the permeability k of the base oil in the tested sample by the formula, and thus evaluate the oil separation trend of the grease sample.

[0033] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. Structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to conventional means in the field unless otherwise specified and limited.

Claims

1. A grease permeability testing device, characterized in that: It comprises a collector (1), a sealing member (2) arranged at the opening of the collector (1), and a funnel (3) connected to the sealing member (2); the funnel (3) is placed upside down on the collector (1), the sealing member (2) is tightened with the collector (1), and then the funnel (3) is tightened with the collector (1) to obtain an assembled component; The connection between the funnel (3) and the sealing member (2) is provided with a first filter screen (6), a sample (7) and a second filter screen (8) in sequence from top to bottom.

2. A grease permeability testing device according to claim 1, characterized in that: The invention also comprises a pipette (4), on which a scale is arranged.

3. A grease permeability testing device according to claim 2, characterized in that: A sealing plug (5) is sleeved on the lower part of the pipette (4), and the pipette (4) passes through the sealing plug (5).

4. A grease permeability testing device according to claim 3, characterized in that: The lower end of the sealing plug (5) is conical, and the outer diameter of the upper part of the sealing plug (5) is larger than the diameter of the opening of the funnel (3).

5. A grease permeability testing device according to claim 1, characterized in that: The collector (1) is provided with an opening at the top, and a cavity is provided inside the collector (1).

6. A grease permeability testing device according to claim 1, characterized in that: The sealing member (2) is in the form of a circular ring, and the outer wall of the sealing member (2) is provided with an external thread.

7. A grease permeability testing device according to claim 6, characterized in that: A boss (21) is provided in the middle of the outer wall of the sealing member (2); the boss (21) is in a circular ring shape, and the outer diameter of the boss (21) is greater than the outer diameter of the sealing member (2).

8. A grease permeability testing device according to claim 7, characterized in that: A sealing ring (22) is bonded to one side end of the sealing member (2).

9. A grease permeability testing device according to claim 1, characterized in that: The funnel (3) is provided with a first groove (31) and a second groove (32); the first groove (31) is used to place the first filter screen (6), and the second groove (32) is used to place the second filter screen (8).

10. A grease permeability testing device according to claim 9, characterized in that: An inner wall at the opening of the funnel (3) is provided with an internal thread corresponding to the sealing member (2).

Images