Lubricating grease dropping point tester

Abstract

The utility model discloses a lubricating grease dropping point tester which comprises a dropping point tester body, a supporting frame is evenly and fixedly connected to the top of the dropping point tester body, a plurality of pneumatic transverse moving assemblies are installed on the supporting frame, and pneumatic lifting assemblies are installed at the movable ends of the pneumatic transverse moving assemblies. And oil sample temperature sensors are fixedly mounted at the movable ends of the plurality of pneumatic lifting assemblies. According to the utility model, through the arrangement of the support frame, the pneumatic transverse moving assembly, the pneumatic lifting assembly, the oil sample temperature sensor, the fixing ring, the annular groove, the annular air bag, the control pipe fitting, the inflation air pump and the test tube rack, a hose needs to be connected between the inflation air pump and the control pipe fitting before the measurement process; the test tubes filled with beakers and grease cups can be placed on the test tube rack, then detection can be automatically carried out in sequence, an experimenter is not needed to be on duty, manpower is saved, and meanwhile the determination efficiency is improved compared with manual sample replacement.

Description

Technical Field

[0001] This utility model relates to the field of dropping point tester technology, and in particular to a grease dropping point tester. Background Technology

[0002] A dropping point apparatus is an instrument used to determine the dropping point of a liquid (usually grease or lubricating oil). The dropping point is an indication of the temperature at which a liquid begins its phase transition from solid to liquid under specific conditions.

[0003] In the machinery industry, the dropping point of lubricating grease is one of the important indicators for evaluating its performance under high-temperature conditions. By measuring the dropping point, the high-temperature resistance of the lubricating grease during use can be determined, ensuring that the grease will not fail or burn in high-temperature environments.

[0004] The prior art, disclosed in CN205538766U, describes a four-hole grease drop point tester with a wide temperature range. It employs photoelectric detection to conveniently, quickly, and accurately determine the drop point. The device is lightweight and easy to handle and move.

[0005] Although the four-hole grease drop point tester with a wide temperature range reduces the workload of laboratory personnel, it still requires personnel to be on duty when testing multiple samples. This is mainly because after a sample in the process of testing is completed, the laboratory personnel need to replace the sample and then test it again. Since the replacement is done manually, the testing efficiency is low, and the need for laboratory personnel to be on duty is also a waste of human resources. Therefore, an improvement is proposed. Utility Model Content

[0006] This invention is a grease dropping point tester proposed to overcome the shortcomings of existing technologies.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a grease dropping point tester, comprising a dropping point tester body, a support frame uniformly and fixedly connected to the top of the dropping point tester body, a plurality of pneumatic lateral movement components installed on the support frame, a pneumatic lifting component installed on the movable end of each of the plurality of pneumatic lateral movement components, and an oil sample temperature sensor fixedly installed on the movable end of each of the plurality of pneumatic lifting components.

[0008] Each of the multiple oil sample temperature sensors has a fixed ring fixedly fitted on its outer surface. Each of the multiple fixed rings has two annular grooves symmetrically opened on its outer surface, and the two adjacent annular grooves are connected. An annular airbag is fixedly connected to the opening of each of the multiple annular grooves. A control tube is installed between each of the multiple fixed rings and the adjacent top annular groove.

[0009] An air pump is fixedly installed on one side of the outer surface of the support frame;

[0010] A test tube rack is fixedly installed on one side of the outer surface of the dropping point tester.

[0011] Furthermore, the support frame includes multiple upright plates, which are fixedly installed on the top of the dropping point measuring instrument body. A fixing frame is fixedly connected to one side of the outer surface of each of the multiple upright plates, and a fixing bracket is fixedly connected to the bottom of the multiple fixing frames. An air pump is fixedly installed on one side of the outer surface of the fixing bracket, which is beneficial for the installation of the pneumatic lifting assembly and the pneumatic lateral movement assembly.

[0012] Furthermore, each of the pneumatic lateral movement components includes a telescopic cylinder, and the telescopic cylinder is fixedly installed on one side of the outer surface of the fixed frame. The movable end of the telescopic cylinder passes through the fixed frame and is fixedly connected to a slide block, which can drive the pneumatic lifting component to move laterally.

[0013] Furthermore, slide rails are slidably connected to both sides of the outer surface of the slide block, and the two slide rails are respectively fixedly installed on the inner walls of the two sides of the adjacent fixed frame. The slide rails have a limiting effect on the slide block, which can ensure the stability of the slide block movement.

[0014] Furthermore, each of the pneumatic lifting components includes a lifting cylinder, which is fixedly installed on the top of the slide. The movable end of the lifting cylinder passes through the slide and is fixedly connected to a mounting plate. The oil sample temperature sensor is fixedly installed at the bottom of the mounting plate, which can control the oil sample temperature sensor to rise or fall.

[0015] Furthermore, the control fitting includes a three-way solenoid valve, which is fixedly installed on one side of the outer surface of the mounting plate. One of the ports of the three-way solenoid valve is fixedly connected to a connecting pipe, and the connecting pipe is fixedly connected to an adjacent fixing ring. One of the remaining two ports of the three-way solenoid valve is connected to a flexible hose of an air pump to facilitate the delivery of gas to the connecting pipe, while the other port is not connected to a pipe to facilitate the discharge of gas from the connecting pipe.

[0016] Furthermore, the connecting pipe is connected to the adjacent annular groove, facilitating the entry of gas into the annular groove.

[0017] The beneficial effects of this utility model are:

[0018] In use, this utility model provides a grease dropping point tester, which includes a support frame, a pneumatic lateral movement assembly, a pneumatic lifting assembly, an oil sample temperature sensor, a fixing ring, an annular groove, an annular air bladder, control tubing, an air pump, and a test tube rack. Before the test, a flexible hose needs to be connected between the air pump and the control tubing. When testing multiple samples, test tubes containing beakers and grease cups can be placed on the test tube rack, and then the tests can be performed automatically in sequence without the need for laboratory personnel to be on duty, saving manpower. At the same time, it also improves the testing efficiency compared to manually changing samples. Attached Figure Description

[0019] To more clearly illustrate the technical solution of this utility model, the drawings used in the description of the specific embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 : A perspective view of this utility model;

[0021] Figure 2 Partial sectional view of this utility model;

[0022] Figure 3 The present utility model Figure 2 Enlarged view of point A in the middle.

[0023] The attached figures are labeled as follows:

[0024] 1. Drop point meter body; 2. Fixing frame; 3. Lifting cylinder; 4. Fixing frame; 5. Air pump; 6. Telescopic cylinder; 7. Test tube rack; 8. Vertical plate; 9. Oil sample temperature sensor; 10. Slide rail; 11. Slide seat; 12. Mounting plate; 13. Three-way solenoid valve; 14. Connecting pipe; 15. Annular groove; 16. Annular airbag; 17. Fixing ring. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0026] like Figures 1 to 3As shown, a grease dropping point tester is disclosed, comprising a dropping point tester body 1. A support frame is uniformly and fixedly connected to the top of the dropping point tester body 1. Multiple pneumatic lateral movement components are mounted on the support frame. Pneumatic lifting components are mounted on the movable ends of the multiple pneumatic lateral movement components. Oil sample temperature sensors 9 are fixedly mounted on the movable ends of the multiple pneumatic lifting components. The support frame includes multiple upright plates 8, which are fixedly mounted on the top of the dropping point tester body 1. A fixing frame 4 is fixedly connected to one side of the outer surface of each of the multiple upright plates 8. A fixing frame 2 is fixedly connected to the bottom of the multiple fixing frames 4. An air pump 5 is fixedly mounted on one side of the outer surface of the fixing frame 2. Each of the multiple pneumatic lateral movement components includes a telescopic... The cylinder 6 is fixedly installed on one side of the outer surface of the fixed frame 4. The movable end of the telescopic cylinder 6 passes through the fixed frame 4 and is fixedly connected to the slide 11. The slide 11 is slidably connected to both sides of the outer surface of the slide 11, and the two slide rails 10 are respectively fixedly installed on the inner walls of the two sides of the adjacent fixed frame 4. Multiple pneumatic lifting components include lifting cylinders 3, and lifting cylinders 3 are fixedly installed on the top of the slide 11. The movable end of the lifting cylinder 3 passes through the slide 11 and is fixedly connected to the mounting plate 12. The oil sample temperature sensor 9 is fixedly installed at the bottom of the mounting plate 12. The lifting cylinder 3 and the telescopic cylinder 6 are both controlled by external solenoid valves and air compressors, which is the prior art.

[0027] Multiple oil sample temperature sensors 9 have fixed rings 17 fixedly fitted on their outer surfaces. Two annular grooves 15 are symmetrically opened on the outer surfaces of the multiple fixed rings 17, and the two adjacent annular grooves 15 are connected. Annular airbags 16 are fixedly connected to the openings of the multiple annular grooves 15. Control pipes are installed between the multiple fixed rings 17 and the adjacent top annular grooves 15. The control pipes include a three-way solenoid valve 13, which is fixedly installed on one side of the outer surface of the mounting plate 12. One of the ports of the three-way solenoid valve 13 is fixedly connected to a connecting pipe 14, and the connecting pipe 14 is fixedly connected to the adjacent fixed ring 17. The connecting pipe 14 is connected to the adjacent annular groove 15. One of the remaining two ports of the three-way solenoid valve 13 is connected to a hose of the air pump 5 to facilitate the delivery of gas to the connecting pipe 14. The other port is not connected to a pipe to facilitate the subsequent discharge of gas from the connecting pipe 14.

[0028] A test tube rack 7 is fixedly installed on one side of the outer surface of the dropping point tester body 1. The test tube rack 7 is designed according to the specifications of the dropping point tester body 1 and should meet the usage requirements of this application. Its function is to facilitate the placement of test tubes.

[0029] Working principle: First, connect the three-way solenoid valve 13 to the air pump 5 via a hose. Install a control valve at one end of the hose. Then, place the test tube containing the beaker and grease cup on the test tube rack 7. Next, the telescopic cylinder 6 drives the slide 11 to move along the slide rail 10. The slide 11, through the lifting cylinder 3 and the mounting plate 12, moves the oil sample temperature sensor 9 to directly above the corresponding test tube. Then, the lifting cylinder 3 drives the mounting plate 12 and the oil sample temperature sensor 9 to descend until the fixing ring 17 is inserted into the test tube. Then, the air pump 5 operates, sending gas into the connecting pipe 14 through the hose and the three-way solenoid valve 13, and then delivering it to the two annular grooves 15 and the annular airbag 16. The tube begins to expand until it seals against the inner wall of the test tube. The control valve on the hose closes, and the inflation pump 5 stops operating, thus fixing the fixed ring 17 to the test tube. Then, the pneumatic lifting assembly, the lateral moving assembly, and other components work together to lift the test tube and insert it into the corresponding bath hole. Automatic measurement is then performed (the measurement method has been described in the prior art publication CN205538766U, a four-hole tester for the wide temperature range of grease). After the measurement is completed, the test tube is returned to its original position. At this time, the three-way solenoid valve 13 controls the connecting pipe 14 to connect with the remaining interface, and the remaining contents in the two annular grooves 15 are discharged. The annular airbag 16 resets, releasing the fixing ring 17 from the test tube.

[0030] It should be noted that, in actual use, the built-in controller of the dropping point meter body 1 needs to be electrically connected to the three-way solenoid valve 13, the oil sample temperature sensor 9, the air pump 5, the control valve installed on the hose, as well as the solenoid valve and air compressor for external control of the cylinder operation, to facilitate overall control. The specific data analysis and processing involved to further realize the control function are methods that can be implemented by those skilled in the art based on common knowledge. These methods are not within the scope of this solution. The above description is only to illustrate the beneficial effects that can be achieved by this hardware structure improvement in conjunction with common knowledge.

[0031] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to any specific implementation. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A grease dropping point tester, comprising a dropping point tester body (1), characterized in that: The top of the dropping point measuring instrument body (1) is uniformly fixedly connected to a support frame. The support frame is equipped with multiple pneumatic transverse components. The movable ends of the multiple pneumatic transverse components are equipped with pneumatic lifting components. The movable ends of the multiple pneumatic lifting components are fixedly equipped with oil sample temperature sensors (9). A fixing ring (17) is fixedly sleeved on the outer surface of each of the multiple oil sample temperature sensors (9). Two annular grooves (15) are symmetrically opened on the outer surface of each of the multiple fixing rings (17), and the two adjacent annular grooves (15) are connected. An annular airbag (16) is fixedly connected to the opening of each of the multiple annular grooves (15). A control tube is installed between each of the multiple fixing rings (17) and the adjacent top annular groove (15). An air pump (5) is fixedly installed on one side of the outer surface of the support frame. A test tube rack (7) is fixedly installed on one side of the outer surface of the main body (1) of the drop point tester.

2. The grease dropping point tester according to claim 1, characterized in that: The support frame includes multiple upright plates (8), and the upright plates (8) are fixedly installed on the top of the dropping point measuring instrument body (1). A fixing frame (4) is fixedly connected to one side of the outer surface of each of the multiple upright plates (8). A fixing frame (2) is fixedly connected to the bottom of the multiple fixing frames (4). An air pump (5) is fixedly installed on one side of the outer surface of the fixing frame (2).

3. The grease dropping point tester according to claim 2, characterized in that: Each of the pneumatic traverse components includes a telescopic cylinder (6), and the telescopic cylinder (6) is fixedly installed on one side of the outer surface of the fixed frame (4). The movable end of the telescopic cylinder (6) passes through the fixed frame (4) and is fixedly connected to a slide (11).

4. The grease dropping point tester according to claim 3, characterized in that: The slide block (11) has slide rails (10) slidably connected to both sides of its outer surface, and the two slide rails (10) are respectively fixedly installed on the inner walls of the two sides of the adjacent fixed frame (4).

5. A grease dropping point tester according to claim 4, characterized in that: Each of the pneumatic lifting components includes a lifting cylinder (3), and the lifting cylinder (3) is fixedly installed on the top of the slide (11). The movable end of the lifting cylinder (3) passes through the slide (11) and is fixedly connected to the mounting plate (12). The oil sample temperature sensor (9) is fixedly installed on the bottom of the mounting plate (12).

6. A grease dropping point tester according to claim 5, characterized in that: The control fitting includes a three-way solenoid valve (13), which is fixedly installed on one side of the outer surface of the mounting plate (12). One of the interfaces of the three-way solenoid valve (13) is fixedly connected to a connecting pipe (14), and the connecting pipe (14) is fixedly connected to an adjacent fixing ring (17).

7. A grease dropping point tester according to claim 6, characterized in that: The connecting pipe (14) is connected to the adjacent annular groove (15).

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