A lubricating oil viscosity testing device

Abstract

The utility model provides a lubricating oil viscosity testing device, which relates to the technical field of lubricating oil performance testing. The lubricating oil viscosity testing device comprises a base, a guide rod, a cross plate, a screw rod, a screw cap, a slide plate, a through hole, a viscosity testing terminal, an output end, a rotor, an extension plate, a blocking assembly, a first sleeve, a second sleeve, and a spring. The two ends of the spring are respectively fixedly connected to the first sleeve and the second sleeve, the extension plate is fixedly connected to the upper end of the second sleeve, a baffle is arranged at the lower end of the first sleeve, and a placement groove for accommodating the rotor is opened on the inner surface of the baffle. The device can continuously shield the outside of the rotor through the baffle before the rotor enters the container and after the rotor comes out of the container, so as to prevent the direct collision of the rotor caused by foreign objects and reduce the swing amplitude of the rotor when subjected to external force, which is beneficial to protecting the container and the rotor, reducing safety hazards, and improving the safety and stability of the test.

Description

Technical Field

[0001] The utility model relates to the technical field of lubricating oil performance testing, in particular to a lubricating oil viscosity testing device. Background Art

[0002] The greater the viscosity of the lubricating oil, the thicker the oil film between the friction surfaces of the moving parts, and the stronger the protection of the friction surfaces of the parts. Before the lubricating oil is mass-produced, its viscosity needs to be tested to ensure that the quality meets the standards. The existing viscosity testing device includes a test terminal, and the test terminal has a rotatable output end. A rotor is provided at the bottom of the output end. By controlling the test terminal to move downward, the rotor is extended into the beaker filled with the lubricating oil, and then the output end drives the rotor to rotate, so as to measure the viscosity of the lubricating oil. Since the rotor can swing in a circle, the rotor has a high degree of flexibility before entering the lubricating oil. If it is hit by foreign objects, it is easy to cause the rotor to swing greatly under the action of external force, and it is easy to collide with the beaker containing the lubricating oil, causing damage to the beaker and outflow of the lubricating oil, posing a safety hazard. Utility Model Content

[0003] The utility model aims to provide a lubricating oil viscosity testing device, aiming to solve the problems mentioned in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: the lubricating oil viscosity testing device comprises a base, guide rods are symmetrically arranged on the base, the upper ends of the two guide rods are connected by a cross plate, a screw rod is arranged between the base and the cross plate, a screw rod is arranged at the upper end of the screw rod, and a slide plate is also included, through holes are opened at both ends of the slide plate for sliding connection with the guide rods, the slide plate is threadedly connected to the screw rod, a viscosity testing terminal is arranged on one side of the slide plate, a rotatable output end is arranged at the lower end of the viscosity testing terminal, a rotor is arranged on the output end, and the An extension plate is symmetrically arranged on the outer surface of one side of the skateboard, and an enclosure assembly is arranged on the extension plate. The enclosure assembly includes a first sleeve and a second sleeve. The upper end of the first sleeve and the lower end of the second sleeve are open. The second sleeve is located inside the first sleeve and is slidably connected to the first sleeve. A spring is arranged inside the second sleeve, and the two ends of the spring are respectively fixedly connected to the first sleeve and the second sleeve. The extension plate is fixedly connected to the upper end of the second sleeve, and a baffle is arranged at the lower end of the first sleeve. The inner surface of the baffle is provided with a placement groove for accommodating the rotor.

[0005] Preferably, when the baffle moves downward, the lower end surface of the baffle abuts against the upper end opening of the container containing the lubricating oil.

[0006] Preferably, the lower end surfaces of the two baffles are provided with enclosures, and the container is located between the two enclosures.

[0007] Preferably, a guide seat is symmetrically arranged on the outer surface of the viscosity test terminal, a guide hole is opened on the guide seat, and the second sleeve is located inside the guide hole and is slidably connected to the guide seat.

[0008] Preferably, when the rotor is suspended vertically, there is a gap between the outer surface of the rotor and the inner surface of the placement groove.

[0009] The beneficial effects of the utility model are:

[0010] The device can continuously shield the outside of the rotor through the baffle before the rotor enters the container and after the rotor comes out of the container, which can not only prevent direct collision of foreign objects on the rotor, but also reduce the swing amplitude of the rotor when subjected to external force, which is beneficial to protecting the container and the rotor, reducing safety hazards, and improving the safety and stability of the test. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural schematic diagram of a specific embodiment of the utility model.

[0012] Figure 2 It is a front view of a specific embodiment of the utility model.

[0013] Figure 3 It is a schematic diagram of the structure inside the first sleeve and the second sleeve.

[0014] In the figure: 1. base; 2. guide rod; 3. cross plate; 4. screw rod; 5. screw cap; 6. slide plate; 7. viscosity test terminal; 8. output end; 9. rotor; 10. extension plate; 11. first sleeve; 12. second sleeve; 13. spring; 14. baffle; 15. placement groove; 16. enclosure; 17. guide seat; 18. container. DETAILED DESCRIPTION

[0015] The specific implementation of the utility model is further described below in conjunction with the accompanying drawings.

[0016] like Figure 1-3As shown, a lubricating oil viscosity testing device comprises a base 1, guide rods 2 are symmetrically arranged on the base 1, the upper ends of the two guide rods 2 are connected by a transverse plate 3, a screw rod 4 is arranged between the base 1 and the transverse plate 3, a screw cap 5 is arranged on the upper end of the screw rod 4, and a slide plate 6 is also included, through holes for sliding connection with the guide rods 2 are opened at both ends of the slide plate 6, the slide plate 6 is threadedly connected with the screw rod 4, a viscosity testing terminal 7 is arranged on one side of the slide plate 6, a rotatable output end 8 is arranged at the lower end of the viscosity testing terminal 7, a rotor 9 is arranged on the output end 8, and an extension plate 10 is symmetrically arranged on the outer surface of one side of the slide plate 6, A barrier assembly is provided on the extension plate 10, and the barrier assembly includes a first sleeve 11 and a second sleeve 12. The upper end of the first sleeve 11 and the lower end of the second sleeve 12 are open. The second sleeve 12 is located inside the first sleeve 11 and is slidably connected to the first sleeve 11. A spring 13 is provided inside the second sleeve 12, and both ends of the spring 13 are fixedly connected to the first sleeve 11 and the second sleeve 12 respectively. The extension plate 10 is fixedly connected to the upper end of the second sleeve 12, and a baffle 14 is provided at the lower end of the first sleeve 11. The inner surface of the baffle 14 is provided with a placement groove 15 for accommodating the rotor 9.

[0017] By controlling the rotation of the screw cap 5, the screw rod 4 is driven to rotate, and then the slide plate 6 is driven to move on the screw rod 4. The viscosity test terminal 7 is fixed to one side of the slide plate 6 by bolts. Therefore, by controlling the forward and reverse rotation of the screw cap 5, the rise or fall of the viscosity test terminal 7 can be controlled.

[0018] A rotatable motor is arranged inside the viscosity test terminal 7 , and the motor drives the output terminal 8 to rotate, and the output terminal 8 drives the rotor 9 to rotate.

[0019] When testing the viscosity of the lubricating oil, firstly, a certain amount of lubricating oil is placed in the container 18, and then the container 18 is placed below the viscosity testing terminal 7, and then the viscosity testing terminal 7 is controlled to move downward by the knob. When the viscosity testing terminal 7 moves downward, the slide plate 6 drives the first sleeve 11, the second sleeve 12, and the baffle 14 to move downward through the extension plate 10, and the rotor 9 is located in the placement groove 15 of the two baffles 14, and the downward movement speed of the rotor 9 is the same as the movement speed of the baffle 14, so that the baffle 14 can limit the large swing of the rotor 9 caused by accidental collision, thereby protecting the rotor 9 and the container 18. When the baffle 14 moves downward, the lower end surface of the baffle 14 abuts against the upper end opening of the container 18 containing the lubricating oil. At this time, the rotor 9 can continue to move downward. Since the baffle 14 abuts against the container 18, when the slide plate 6 continues to move downward, the slide plate 6 drives the second sleeve 12 to move downward through the extension plate 10. The second sleeve 12 and the first sleeve 11 jointly squeeze the spring 13 located in the first sleeve 11 and the second sleeve 12, so that the second sleeve 12 can continue to move in the first sleeve 11. After the rotor 9 completely enters the lubricating oil, the rotor 9 cannot restrict the swing of the rotor 9. At this time, the viscosity of the lubricating oil can be tested.

[0020] Furthermore, the lower end surfaces of the two baffles 14 are provided with a surrounding plate 16 , and the container 18 is located between the two surrounding plates 16 . The surrounding plate 16 can improve the stability of the placement of the container 18 and prevent the container 18 from sliding on the working platform.

[0021] Furthermore, a guide seat 17 is symmetrically arranged on the outer surface of the viscosity testing terminal 7, a guide hole is opened on the guide seat 17, the second sleeve 12 is located inside the guide hole and is slidably connected to the guide seat 17, the guide seat 17 can limit the swing of the first sleeve 11, and the guide seat 17 can improve the stability of the downward movement of the first sleeve 11.

[0022] Furthermore, when the rotor 9 is suspended vertically, there is a gap between the outer surface of the rotor 9 and the inner surface of the placement groove 15. When the rotor 9 is not affected by external force, the rotor 9 does not contact the placement groove 15, thereby preventing the outer surface of the rotor 9 from being scratched.

[0023] The device can continuously shield the outside of the rotor 9 through the baffle 14 before the rotor 9 enters the container 18 and after the rotor 9 comes out of the container 18, which can not only prevent direct collision of foreign objects with the rotor 9, but also reduce the swing amplitude of the rotor 9 when subjected to external force, which is beneficial to protecting the container 18 and the rotor 9, reducing safety hazards, and improving the safety and stability of the test.

[0024] In the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Claims

1. A lubricating oil viscosity testing device, characterized in that: The invention comprises a base (1), wherein guide rods (2) are symmetrically arranged on the base (1), the upper ends of the two guide rods (2) are connected via a transverse plate (3), a screw rod (4) is arranged between the base (1) and the transverse plate (3), the upper end of the screw rod (4) is arranged with a screw cap (5), and a slide plate (6) is also included, wherein through holes for sliding connection with the guide rods (2) are provided at both ends of the slide plate (6), the slide plate (6) is threadedly connected with the screw rod (4), a viscosity test terminal (7) is arranged on one side of the slide plate (6), a rotatable output end (8) is arranged at the lower end of the viscosity test terminal (7), a rotor (9) is arranged on the output end (8), and an extension plate (10) is symmetrically arranged on the outer surface of one side of the slide plate (6), the extension plate A retaining assembly is arranged on (10), and the retaining assembly includes a first sleeve (11) and a second sleeve (12), the upper end of the first sleeve (11) and the lower end of the second sleeve (12) are open, the second sleeve (12) is located inside the first sleeve (11) and is slidably connected to the first sleeve (11), a spring (13) is arranged inside the second sleeve (12), the two ends of the spring (13) are respectively fixedly connected to the first sleeve (11) and the second sleeve (12), the extension plate (10) is fixedly connected to the upper end of the second sleeve (12), a baffle (14) is arranged at the lower end of the first sleeve (11), and the inner surface of the baffle (14) is provided with a placement groove (15) for accommodating the rotor (9).

2. The lubricating oil viscosity testing device according to claim 1, characterized in that: When the baffle (14) moves downward, the lower end surface of the baffle (14) abuts against the upper end opening of the container (18) containing lubricating oil.

3. The lubricating oil viscosity testing device according to claim 2, characterized in that: The lower end surfaces of the two baffles (14) are provided with enclosure plates (16), and the container (18) is located between the two enclosure plates (16).

4. The lubricating oil viscosity testing device according to claim 1, characterized in that: A guide seat (17) is symmetrically arranged on the outer surface of the viscosity test terminal (7), a guide hole is opened on the guide seat (17), and the second sleeve (12) is located inside the guide hole and is slidably connected to the guide seat (17).

5. The lubricating oil viscosity testing device according to claim 2, characterized in that: When the rotor (9) is suspended vertically, a gap exists between the outer surface of the rotor (9) and the inner surface of the placement groove (15).

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