A new material rolling oil viscosity detection device

Abstract

The application discloses a new material rolling oil viscosity detection device and relates to the technical field of new material rolling oil detection.The new material rolling oil viscosity detection device comprises a heating seat and a suction assembly, a water bath cylinder is arranged on the top of the heating seat, a top cover is arranged on the top of the water bath cylinder, a motor is fixed on the top of the top cover, and a driving gear is connected with the output shaft of the motor.The simple operation of the push-pull adjusting plate can synchronously complete the switching of the three-way valve and the linkage of the suction mechanism.During the advancing of the adjusting plate, the meshing of the toothed plate and the adjusting gear drives the valve rod to rotate, so that the three-way valve connects the capillary viscometer and the suction pipeline.At the same time, the speed reducer reduces the speed and increases the torque to drive the piston to reciprocate and form stable negative pressure, and the continuous suction is realized in cooperation with the design of the two groups of one-way valves.When the adjusting plate is pulled back, the three-way valve is automatically reset to connect the atmosphere, and the whole process does not need additional operating devices, which not only significantly simplifies the complicated process of repeatedly switching the suction equipment in the traditional detection, but also accurately controls the suction rate through the speed reducer.

Description

Technical Field

[0001] This invention relates to the field of new material rolling oil testing technology, specifically a new material rolling oil viscosity testing device. Background Technology

[0002] Rolling oil is a lubricating and cooling medium used in metal rolling processes. It is mainly used to reduce friction between the rolls and the metal sheet, while controlling temperature, preventing oxidation, and extending equipment life. New material rolling oil is an upgraded product based on traditional formulas. In the process of developing new material rolling oil, its viscosity needs to be tested.

[0003] Currently, when testing the viscosity of rolling oil for new materials, the sample needs to be added to a capillary viscometer, heated in a water bath, and after reaching a constant temperature, air is drawn from one end of the capillary using a syringe to move the liquid to a specified height. The connection is then disconnected to keep the end of the capillary open. The kinematic viscosity is calculated by measuring the time required for a certain volume of oil sample to pass through the capillary under gravity. However, in order to reduce errors, multiple measurements are required and the average value is taken. Therefore, it is necessary to frequently connect the end of the capillary to the syringe, manually draw air, and then disconnect the connection, which makes the operation quite cumbersome. Summary of the Invention

[0004] The purpose of this invention is to provide a novel material rolling oil viscosity testing device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A novel material rolling oil viscosity testing device includes a heating base and a suction assembly. A water bath is mounted on top of the heating base, and a top cover is installed on top of the water bath. A motor is fixed to the top of the top cover, and the output shaft of the motor is connected to a drive gear. A driven gear meshes with one side of the drive gear, and a stirring shaft is housed inside the driven gear. The suction assembly is located on one side of the driven gear and includes a drive gear. The drive gear meshes with one side of the driven gear, and a reducer is connected to one end of the drive gear. The output end of the reducer is connected to a main... A driving shaft is provided, with a driven shaft rotatably connected to one end of the driving shaft. A rotating disk is fixed to the end of the driven shaft, and a connecting rod is rotatably connected to one side of the rotating disk. A piston rod is rotatably connected to the end of the connecting rod, and a fixed cylinder is slidably connected to the outer side of one end of the piston rod. A one-way valve is provided on the outer circumference of the fixed cylinder, and a manifold is connected to the one-way valve located at the upper part of the fixed cylinder. A three-way valve is installed at the end of the manifold, and a valve stem is connected to the valve core of the three-way valve. An adjusting gear is installed at the lower end of the valve stem, and a toothed plate meshes with one side of the adjusting gear. An adjusting plate is fixed to one side of the toothed plate.

[0007] Furthermore, the top cover is rotatably connected to the valve stem, and the top cover is fixedly connected to the fixed cylinder.

[0008] Furthermore, a clamp is provided on the top of the top cover, and a capillary viscometer runs through the interior of the clamp, while a connecting component is provided on the exterior of the clamp.

[0009] Furthermore, the connecting assembly includes a protruding post, the bottom outer end of the clamp is provided with the protruding post and the protruding post is fitted with the top cover, one end of the clamp is internally threaded with a screw rod, and the end of the screw rod is rotatably connected with an anti-slip clamping block, and the anti-slip clamping block is slidably connected with the clamp.

[0010] Furthermore, a bracket is fixed to the top of the clamp, and the upper end of the bracket is hollow. A sliding tube is slidably connected to the middle of the bracket, and a rubber sleeve is fixed to the bottom of the sliding tube. The opening of the rubber sleeve is funnel-shaped, and a compression spring is connected to the top of the rubber sleeve, and the compression spring abuts against the bracket.

[0011] Furthermore, a connector is fixed to one side of the bracket, and the connector is at a right angle, with a connector slidably connected to the end of the connector.

[0012] Furthermore, the interior of the connector is connected to the interior of the three-way valve, and the connector is fixedly connected to the top cover.

[0013] Furthermore, a switching component is provided on the top of the top cover, and the switching component includes a slide groove. The top of the top cover has a slide groove, and a slider is slidably connected inside the slide groove. The cross-section of the slider is an isosceles trapezoid, and the slider is fixedly connected to the adjustment plate.

[0014] Furthermore, the end of the adjusting plate is provided with a guide groove, and a sliding column is slidably connected inside the guide groove. A drive plate is fixed to the top of the sliding column, and a guide rod is slidably connected to the middle of the drive plate. The guide rod is fixedly connected to the reducer.

[0015] Furthermore, the upper end of the guide rod is rotatably connected to a gear sleeve, and the outer sides of both the drive shaft and the driven shaft are provided with tooth grooves, which match the gear sleeves.

[0016] The novel material rolling oil viscosity testing device provided by this invention has the following beneficial effects:

[0017] 1. This invention allows for simultaneous switching of the three-way valve and linkage of the suction mechanism through the simple operation of a push-pull adjustment plate. During the adjustment plate's advancement, the meshing of the toothed plate and the adjusting gear drives the valve stem to rotate, connecting the three-way valve to the capillary viscometer and the suction pipeline. Simultaneously, the reducer decreases speed and increases torque, driving the piston to reciprocate and form a stable negative pressure. Combined with the design of two sets of one-way valves, continuous suction is achieved. Furthermore, when the adjustment plate is pulled back, the three-way valve automatically resets and connects to the atmosphere. The entire process requires no additional operating devices, significantly simplifying the cumbersome process of repeatedly switching suction equipment in traditional testing. It also precisely controls the suction rate through the reducer, ensuring that the oil enters the measuring ball smoothly, effectively avoiding the impact of flow fluctuations on testing accuracy, and achieving a combination of one-button operation and precise control.

[0018] 2. The switching component of this invention adopts a composite design of slide guide and mechanical interlock. The slide slider combination ensures the stability of the linear motion of the adjusting plate. The guide groove drives the plate to move axially through the linkage of the sliding column, so that the engaging tooth sleeve and the drive shaft form a reliable mesh. Its tooth end chamfer design effectively eliminates the impact of docking. When the adjusting plate is pushed to the working position, the transmission system automatically engages and drives the piston rod to run. After the operation is completed, the engaging tooth sleeve automatically disengages from the transmission shaft, realizing the automatic start and stop of power transmission. This mechanical interlock mechanism not only ensures the reliability of power transmission during equipment operation, but also automatically cuts off the power load in the non-working state, extending the service life of key components.

[0019] 3. During clamping, the present invention achieves rapid clamping through the synergistic effect of threaded clamping and elastic sealing. The rotating screw drives the anti-slip clamping block to fix the viscometer body, and the compression spring pushes the rubber sleeve to automatically fit the thin tube to form a reliable seal. The positioning design of the protruding post ensures accurate docking of the insertion tube. Compared with the traditional testing process that requires handling multiple processes such as clamping and pipe connection separately, this design realizes the simultaneous completion of clamping and positioning and pipe connection, which greatly shortens the test preparation time. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a novel material rolling oil viscosity detection device according to the present invention;

[0021] Figure 2 This is a bottom-view perspective three-dimensional structural diagram of the top cover of a novel material rolling oil viscosity testing device according to the present invention;

[0022] Figure 3 This is a left-side perspective three-dimensional structural diagram of the top cover of a novel material rolling oil viscosity detection device according to the present invention;

[0023] Figure 4 This is a schematic diagram of the connection component structure of a novel material rolling oil viscosity detection device according to the present invention;

[0024] Figure 5This is a three-dimensional structural diagram of the suction component of a novel material rolling oil viscosity detection device according to the present invention;

[0025] Figure 6 This is a three-dimensional structural diagram of the switching component of a novel material rolling oil viscosity detection device according to the present invention.

[0026] In the diagram: 1. Heating base; 2. Water bath; 3. Top cover; 4. Clamp; 5. Capillary viscometer; 6. Connecting assembly; 601. Protruding post; 602. Screw; 603. Anti-slip clamp; 604. Bracket; 605. Sliding tube; 606. Rubber sleeve; 607. Compression spring; 608. Insertion tube; 609. Insertion socket; 7. Motor; 8. Drive gear; 9. Driven gear; 10. Stirring shaft; 11. Suction assembly; 1101. Drive gear; 1102. Reducer; 1103. Drive shaft; 1104. 1105 Driven shaft; 1106 Rotating disc; 1107 Connecting rod; 1108 Piston rod; 1109 Fixed cylinder; 1100 Check valve; 1110 Manifold; 1111 Three-way valve; 1112 Valve stem; 1113 Adjusting gear; 1114 Gear plate; 1115 Adjusting plate; 12 Switching assembly; 1201 Slide groove; 1202 Slider; 1203 Guide groove; 1204 Sliding column; 1205 Drive plate; 1206 Guide rod; 1207 Engaging gear sleeve; 1208 Gear groove. Detailed Implementation

[0027] Please see Figures 1 to 4 The novel material rolling oil viscosity testing device provided by this invention includes a heating base 1 and a suction assembly 11. A water bath 2 is mounted on the top of the heating base 1, and a top cover 3 is mounted on the top of the water bath 2. A clamping seat 4 is mounted on the top of the top cover 3, and a capillary viscometer 5 passes through the interior of the clamping seat 4. A connecting assembly 6 is mounted on the exterior of the clamping seat 4, and the connecting assembly 6 includes a protrusion 601. The protrusion 601 is mounted on the outer bottom end of the clamping seat 4 and engages with the top cover 3. A screw 602 is threadedly connected to one end of the clamping seat 4, and an anti-slip clamping block 603 is rotatably connected to the end of the screw 602. Furthermore, the anti-slip clamp 603 is slidably connected to the clamp 4. The top of the clamp 4 is fixed with a bracket 604, and the upper end of the bracket 604 is hollow. The middle of the bracket 604 is slidably connected with a sliding tube 605, and the bottom of the sliding tube 605 is fixed with a rubber sleeve 606. The opening of the rubber sleeve 606 is funnel-shaped, and the top of the rubber sleeve 606 is connected with a compression spring 607, which abuts against the bracket 604. A plug tube 608 is fixed on one side of the bracket 604, and the plug tube 608 is right-angled. The end of the plug tube 608 is slidably connected with a plug seat 609.

[0028] The specific operation is as follows: When installing the capillary viscometer 5, simply insert it into the hole of the clamp 4, and then rotate the screw 602 to move the anti-slip clamp 603 to the side of the capillary viscometer 5, thereby fixing it in place. During this process, the compression spring 607 will push the rubber sleeve 606 to fit against the upper end of the capillary viscometer 5's thin tube, automatically sealing and connecting it to the upper end of the capillary viscometer 5's thin tube, thus connecting the inside of the capillary viscometer 5's thin tube with the inside of the bracket 604. When the capillary viscometer 5 is then inserted into the water bath 2 through the opening on the top cover 3, the clamp 4 is limited by the matching groove on the top of the top cover 3 and the protrusion 601, preventing the insertion tube 608 from being misaligned with the insertion seat 609. After placement, the insertion tube 608 will also be aligned with the insertion seat 609. Therefore, during the clamping and placement of the capillary viscometer 5, the thin tube of the capillary viscometer 5 is automatically connected to the pipeline on the detection device, thereby reducing additional operation steps and making it very convenient.

[0029] Please see Figures 3 to 5 A motor 7 is fixed on the top of the top cover 3, and the output shaft of the motor 7 is connected to a drive gear 8. A driven gear 9 is meshed on one side of the drive gear 8, and a stirring shaft 10 is installed inside the driven gear 9. The suction assembly 11 is located on one side of the driven gear 9.

[0030] In some embodiments, the suction assembly 11 includes a drive gear 1101, one side of which is meshed with the driven gear 9. One end of the drive gear 1101 is connected to a reducer 1102. The output end of the reducer 1102 is connected to a drive shaft 1103. One end of the drive shaft 1103 is rotatably connected to a driven shaft 1104. A rotating disk 1105 is fixed to the end of the driven shaft 1104. A connecting rod 1106 is rotatably connected to one side of the rotating disk 1105. A piston rod 1107 is rotatably connected to the end of the connecting rod 1106. A fixed cylinder 1108 is slidably connected to the outer side of one end of the piston rod 1107. The outer circumferential surface of the fixed cylinder 1108 is provided with… A one-way valve 1109 is provided and located on the upper part of the fixed cylinder 1108. The one-way valve 1109 is connected to a manifold 1110. A three-way valve 1111 is installed at the end of the manifold 1110. The valve core of the three-way valve 1111 is connected to a valve stem 1112. The interior of the plug-in seat 609 is connected to the interior of the three-way valve 1111. The plug-in seat 609 is fixedly connected to the top cover 3. An adjusting gear 1113 is installed at the lower end of the valve stem 1112. A toothed plate 1114 meshes with one side of the adjusting gear 1113. An adjusting plate 1115 is fixed to one side of the toothed plate 1114. The top cover 3 is rotatably connected to the valve stem 1112. The top cover 3 is fixedly connected to the fixed cylinder 1108.

[0031] During the testing process, when moving the oil inside the capillary viscometer 5 into the measuring ball, simply push the adjusting plate 1115. At this time, the toothed plate 1114 will drive the valve stem 1112 to rotate through the adjusting gear 1113, thus switching the connection state inside the three-way valve 1111. This connects the inside of the capillary viscometer 5 with the inside of the manifold 1110. At this time, when the motor 7 drives the stirring shaft 10 to stir the inside of the water bath 2 through the driving gear 8 and the driven gear 9, it can also drive the driving gear 1101, The reducer 1102, drive shaft 1103 and driven shaft 1104 drive the rotating disk 1105 to rotate, which causes the connecting rod 1106 to push and pull the piston rod 1107 back and forth, thereby changing the air pressure on both sides of the fixed cylinder 1108. At the same time, the one-way valves 1109 located on the upper and side of the fixed cylinder 1108 allow the airflow to flow in opposite directions. Therefore, when the air pressure inside the fixed cylinder 1108 decreases, the capillary viscometer 5 can be evacuated through the manifold 1110, and the oil can be automatically drawn into the measuring ball.

[0032] It should be noted that when the air pressure at the other end of the fixed cylinder 1108 increases, it can be discharged through the one-way valve 1109 on the side. There are two sets of one-way valves 1109, so that the piston rod 1107 can perform suction operation during reciprocating motion, maintaining the continuity of liquid suction. At the same time, by utilizing the deceleration performance of the reducer 1102, the suction speed can be slowed down while increasing the torque, thus facilitating the control of the rolling oil flow rate.

[0033] Furthermore, once the oil has moved to the designated position, pulling the adjusting plate 1115 will cause the gear plate 1114 to drive the adjusting gear 1113 to rotate, thereby resetting the valve core inside the three-way valve 1111. At this time, the upper end of the measuring ball of the capillary viscometer 5 will be connected to the atmosphere through the empty connector of the three-way valve 1111, allowing for normal measurement operations. During use, only the adjusting plate 1115 needs to be pushed and pulled, eliminating the need for frequent use of additional devices to evacuate and disconnect the capillary viscometer 5, thus improving detection efficiency.

[0034] Please see Figure 3 and Figure 6The top of the top cover 3 is provided with a switching component 12, which includes a slide groove 1201. The top of the top cover 3 has a slide groove 1201, and a slider 1202 is slidably connected inside the slide groove 1201. The slider 1202 has an isosceles trapezoidal cross section and is fixedly connected to the adjusting plate 1115. The end of the adjusting plate 1115 has a guide groove 1203, and a slide column 1204 is slidably connected inside the guide groove 1203. A drive plate 1205 is fixedly fixed to the top of the slide column 1204. A guide rod 1206 is slidably connected to the middle of the drive plate 1205 and is fixedly connected to the reducer 1102. A gear sleeve 1207 is rotatably connected inside the upper end of the guide rod 1206. The outer sides of the drive shaft 1103 and the driven shaft 1104 are both provided with tooth grooves 1208, and the tooth grooves 1208 match the gear sleeves 1207.

[0035] During the process of pushing the adjusting plate 1115, the slide groove 1201 and the slider 1202 guide the adjusting plate 1115 to ensure its stability during movement. At the same time, the guide groove 1203 applies force to the sliding column 1204, causing the drive plate 1205 to move along the axial direction of the guide rod 1206 towards the reducer 1102. This drives the engaging gear sleeve 1207 to slide to the end of the drive shaft 1103, connecting the drive shaft 1103 and the driven shaft 1104, enabling normal transmission operation and facilitating automatic internal processing of the capillary viscometer 5. The suction operation is performed by pumping air. At the same time, the low speed of the drive shaft 1103 and the inclined guide at the end of the tooth groove 1208 make docking very convenient and avoid jamming. When the adjusting plate 1115 is pushed to connect the capillary viscometer 5 with the external atmosphere, the guide groove 1203 will drive the slide column 1204 to move back to its original position, so that the engaging tooth sleeve 1207 is separated from the drive shaft 1103. At this time, the transmission connection between the drive shaft 1103 and the driven shaft 1104 can be disconnected, thereby automatically stopping the suction operation. This reduces the load on the equipment and saves energy when not in use.

[0036] When using the novel material rolling oil viscosity testing device of this application, first insert the capillary viscometer 5 into the hole of the clamp 4, and then rotate the screw 602 to move the anti-slip clamp 603 to the side of the capillary viscometer 5, thereby fixing it. At the same time, the compression spring 607 will push the rubber sleeve 606 to fit against the upper end of the capillary viscometer 5, automatically sealing and connecting with the upper end of the capillary viscometer 5, so that the inside of the capillary viscometer 5 is connected to the inside of the bracket 604.

[0037] Secondly, the capillary viscometer 5 is inserted into the water bath 2 through the opening on the top cover 3. At this time, the protrusion 601 and the matching groove on the top of the top cover 3 are used to limit the clamp 4, so as to prevent the insertion tube 608 from being misaligned with the insertion seat 609. After placement, the insertion tube 608 will also be aligned with the insertion seat 609. Therefore, during the clamping and placement of the capillary viscometer 5, the thin tube of the capillary viscometer 5 is automatically connected to the pipeline on the detection device.

[0038] Next, the rolled oil sample is injected from the coarse tube of the capillary viscometer 5 into the flat storage area using a pipette. Then, the heating base 1 is activated to heat the water bath 2. At this time, the motor 7 drives the stirring shaft 10 through the driving gear 8 and the driven gear 9 to stir the inside of the water bath 2, so that the capillary viscometer 5 is heated evenly. After the rolled oil sample is heated to the specified temperature, the adjusting plate 1115 is pushed. At this time, the toothed plate 1114 drives the valve stem 1112 to rotate through the adjusting gear 1113, which can switch the connection state inside the three-way valve 1111, so that the capillary... The inside of the capillary tube of the viscometer 5 is connected to the inside of the manifold 1110. During this process, the slide groove 1201 and the slider 1202 guide the adjusting plate 1115 to ensure its stability during movement. At the same time, the guide groove 1203 applies force to the slide column 1204, causing the drive plate 1205 to move along the axis of the guide rod 1206 toward the reducer 1102. This drives the engagement sleeve 1207 to slide to the end of the drive shaft 1103, connecting the drive shaft 1103 and the driven shaft 1104 so that they can perform normal transmission operation.

[0039] Then, driven gear 9 drives rotating disk 1105 to rotate via drive gear 1101, reducer 1102, drive shaft 1103, and driven shaft 1104. This causes connecting rod 1106 to reciprocate in pushing and pulling piston rod 1107, thereby changing the air pressure on both sides inside fixed cylinder 1108. At the same time, one-way valves 1109 located on the upper and side of fixed cylinder 1108 allow airflow in opposite directions. Therefore, when the air pressure inside fixed cylinder 1108 decreases, it can be circulated through manifold 1110 to circulate air through the manifold. When the air inside the capillary viscometer 5 is evacuated, the oil can be automatically drawn into the measuring ball. When the air pressure at the other end of the fixed cylinder 1108 increases, it can be discharged through the one-way valve 1109 on the side. There are two sets of one-way valves 1109, so that the piston rod 1107 can perform suction operation during reciprocating motion, maintaining the continuity of liquid suction. At the same time, by utilizing the deceleration performance of the reducer 1102, the suction speed can be slowed down while increasing the torque, thus facilitating the control of the rolling oil flow rate.

[0040] Then, when the oil moves to the designated position, pulling the adjusting plate 1115 will cause the toothed plate 1114 to drive the adjusting gear 1113 to rotate, so that the valve core inside the three-way valve 1111 will be reset. At this time, the upper end of the measuring ball of the capillary viscometer 5 will be connected to the atmosphere through the empty connector of the three-way valve 1111, so that normal measurement operation can be performed. At the same time, the guide groove 1203 will drive the slide column 1204 to move back and reset, so that the engaging toothed sleeve 1207 is separated from the drive shaft 1103. At this time, the transmission connection between the drive shaft 1103 and the driven shaft 1104 can be disconnected, thereby automatically stopping the suction operation.

[0041] Finally, the viscosity is calculated by using a stopwatch to record the time it takes for the rolling oil to move to a specified distance. When taking the average value of multiple measurements, only the adjustment plate 1115 needs to be pushed and pulled, without the need to frequently use additional devices to evacuate and disconnect the capillary viscometer 5, thereby improving the detection efficiency.

[0042] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0043] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only for the purpose of helping to understand the method and core ideas of the present invention. The above descriptions are only preferred embodiments of the present invention. It should be noted that due to the limitations of textual expression, and the objective existence of infinite specific structures, those skilled in the art can make several improvements, modifications, or changes without departing from the principles of the present invention, and can also combine the above technical features in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the inventive concept and technical solution to other situations without modification, should all be considered within the scope of protection of the present invention.

Claims

1. A novel material rolling oil viscosity testing device, characterized in that, The device includes a heating base and a suction assembly. A water bath is mounted on top of the heating base, and a top cover is installed on top of the water bath. A motor is fixed to the top of the top cover, and the motor's output shaft is connected to a drive gear. A driven gear meshes with one side of the drive gear, and a stirring shaft is housed inside the driven gear. The suction assembly is located on one side of the driven gear and includes a drive gear. The drive gear meshes with one side of the driven gear, and a reducer is connected to one end of the drive gear. The output end of the reducer is connected to a drive shaft, and a driven shaft is rotatably connected to one end of the drive shaft. A rotating disk is fixed to the end of the driven shaft, and a connecting rod is rotatably connected to one side of the rotating disk. A piston rod is rotatably connected to the end of the connecting rod, and a fixed cylinder is slidably connected to the outer side of one end of the piston rod. A one-way valve is provided on the outer circumference of the fixed cylinder, and a manifold is connected to the one-way valve located at the top of the fixed cylinder. A manifold is installed at the end of the manifold. The device includes a three-way valve with a valve stem connected to its valve core. An adjusting gear is mounted at the lower end of the valve stem, and a toothed plate meshes with one side of the adjusting gear. An adjusting plate is fixed to one side of the toothed plate. A clamp is mounted on the top of the top cover, and a capillary viscometer passes through the interior of the clamp. A connecting assembly is provided on the exterior of the clamp. A bracket is fixed to the top of the clamp, and the upper end of the bracket is hollow. A sliding tube is slidably connected to the middle of the bracket, and a rubber sleeve is fixed to the bottom of the sliding tube. The opening of the rubber sleeve is funnel-shaped, and a compression spring is connected to the top of the rubber sleeve, abutting against the bracket. A insertion tube is fixed to one side of the bracket, and the insertion tube is right-angled. A connector is slidably connected to the end of the insertion tube, and the interior of the connector communicates with the interior of the three-way valve. The connector is fixedly connected to the top cover. The compression spring pushes the rubber sleeve, causing it to fit against the upper end of the capillary viscometer's thin tube.

2. The novel material rolling oil viscosity testing device according to claim 1, characterized in that, The top cover is rotatably connected to the valve stem, and the top cover is fixedly connected to the fixed cylinder.

3. The novel material rolling oil viscosity testing device according to claim 2, characterized in that, The connecting assembly includes a protruding post. The bottom outer end of the clamp is provided with the protruding post, which is fitted with the top cover. One end of the clamp is internally threaded with a screw, and the end of the screw is rotatably connected with an anti-slip clamping block, which is slidably connected to the clamp.

4. The novel material rolling oil viscosity testing device according to claim 3, characterized in that, The top of the top cover is provided with a switching component, and the switching component includes a slide groove. The top of the top cover has a slide groove, and a slider is slidably connected inside the slide groove. The cross-section of the slider is an isosceles trapezoid, and the slider is fixedly connected to the adjustment plate.

5. The novel material rolling oil viscosity testing device according to claim 4, characterized in that, The adjusting plate has a guide groove at its end, and a sliding column is slidably connected inside the guide groove. A drive plate is fixed to the top of the sliding column, and a guide rod is slidably connected to the middle of the drive plate. The guide rod is fixedly connected to the reducer.

6. The novel material rolling oil viscosity testing device according to claim 5, characterized in that, The upper end of the guide rod is rotatably connected to a gear sleeve. Both the drive shaft and the driven shaft have toothed grooves on their outer sides, and the toothed grooves match the gear sleeves.

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