Anti-condensation device for low-temperature test of rheometer

Abstract

The utility model discloses a rheometer low temperature test anti-condensation device which comprises a rheometer and a drying cylinder, the rheometer comprises a base, a lifting device and a lifting platform which lifts along the lifting device, the base is provided with a temperature control base, the lifting platform is provided with a rotating piece, the drying cylinder is installed on the base and comprises a cylinder body, the upper end and the lower end of the cylinder body are both provided with openings, and the openings are communicated with the temperature control base. The temperature control base is located in the barrel, when the rotating piece abuts against the upper end face of the temperature control base, the upper end of the barrel abuts against the lifting table, the barrel comprises at least one air inlet and at least one air outlet, the air inlets and the air outlets are located in the side wall of the barrel, height difference exists between the air inlets and the air outlets, dry air is introduced into the air inlets, and the air outlets are located in the lifting table. When the rheometer is used for testing, the testing environment of the temperature control base can be continuously filled with dry air, and water condensation and freezing of the temperature control base are prevented.

Description

TECHNICAL FIELD

[0001] The utility model relates to lubricating grease experimental apparatus technical field more specifically, relate to a kind of rheometer low-temperature test anti-condensation device. BACKGROUND

[0002] In prior art, lubricating grease needs to carry out various experimental tests in research and development, detects its various data, rheometer is a kind of instrument for determining the rheological properties of polymer melt, polymer solution, suspension, emulsion, paint, ink and food etc., it can test the change of lubricating grease fluidity under different temperatures, but the rheometer used in existing laboratory can be stably operated under high-temperature test, but in low-temperature test, since the temperature of temperature control base is lower than room temperature, so water is easy to condense on the surface of temperature control base, such as ice is easy to form on the surface of temperature control base when test temperature is lower than zero centigrade, which will interfere with fluidity experiment, affect the stability of experiment, thus a technical scheme is needed to solve the above problems. SUMMARY

[0003] The utility model aims at overcoming the deficiency of prior art, can not condense water and ice when temperature control base is in low-temperature test, and provides a kind of rheometer low-temperature test anti-condensation device.

[0004] In order to achieve the above object, the utility model adopts the following technical scheme:

[0005] The utility model discloses a kind of rheometer low-temperature test anti-condensation device, including rheometer and drying cylinder, the rheometer includes base, lifting device, lifting platform is lifted along the lifting device, the base is equipped with temperature control base, the lifting platform is equipped with rotating piece, the drying cylinder is installed in the base, the drying cylinder includes cylinder body, the upper end and the lower end of the cylinder body are equipped with opening, the temperature control base is located in the cylinder body, when the rotating piece is resisted to the upper end surface of the temperature control base, the upper end of the cylinder body is resisted to the lifting platform, the cylinder body includes at least one gas inlet and at least one gas outlet, the gas inlet and the gas outlet are located in the side wall of the cylinder body, height difference is equipped between the gas inlet and the gas outlet, the gas inlet is connected with dry air.

[0006] Further, the upper end surface of the base is equipped with mounting table, the upper end surface of the mounting table is equipped with boss, the temperature control base is installed on the boss, the inner wall of the cylinder body is attached to the side wall of the boss.

[0007] Further, the cylinder body is equipped with first ring plate, the first ring plate is located in the lower end of the cylinder body, the first ring plate is installed first sealing ring, the lower end of the first sealing ring is lower than the lower end of the cylinder body, the first sealing ring is resisted to the upper end surface of the mounting table.

[0008] Further, the cylinder body is provided with a second ring plate, the second ring plate is located at the upper end of the cylinder body, the second ring plate is installed with a second sealing ring, the second sealing ring can resist the lifting platform.

[0009] Further, the cylinder body is provided with a ring cavity, the air inlet is communicated with the ring cavity, the side wall of the cylinder body is provided with a plurality of air outlets, the plurality of air outlets are distributed in a ring shape, and the air outlets are communicated with the inside of the cylinder body and the ring cavity.

[0010] Further, the cylinder body is provided with a ring groove, the ring groove is communicated with the air inlet, the cylinder body is installed with a sealing plate, the sealing plate seals the ring groove, the sealing plate and the ring groove form the ring cavity, and the air outlet is located on the sealing plate.

[0011] Further, the drying cylinder comprises a fixing assembly, the fixing assembly is installed on the side wall of the cylinder body, and the fixing assembly is provided with at least two.

[0012] Further, the fixing assembly comprises a connecting plate, a mounting pipe, a threaded rod and a piston, the connecting plate is fixed on the side wall of the cylinder body, the mounting pipe is fixedly installed on the connecting plate, the mounting pipe is internally provided with a guide channel, the threaded rod is threadedly connected with the mounting pipe, the threaded rod is at least partially located in the guide channel, the piston is located in the guide channel, the piston is fixedly installed on the lower end of the threaded rod, the suction disc is installed on the lower end of the mounting pipe, the suction disc is in the shape of a bowl opening downward, the suction disc is provided with a through hole, and the through hole is communicated with the guide channel and the inside of the suction disc.

[0013] The utility model discloses the beneficial effects are:

[0014] The utility model discloses can when the rheometer carries out low temperature test, install the drying cylinder to the outer periphery of temperature control base, and the air inlet of drying cylinder continuously fills dry air to the inside of cylinder body, makes the test environment of temperature control base continuously full of dry air, and the moisture in the experimental environment air of temperature control base is extremely little, can prevent temperature control base condensation water and ice. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a sectional view of the embodiment.

[0016] Figure 2 It is a sectional view of the embodiment.

[0017] Figure 3 It is Figure 2 The enlarged view of A in the middle.

[0018] Figure 4A sectional view of the drying cylinder in the embodiment.

[0019] Fig. 1 is a rheometer; 11 is a base; 12 is a lifting device; 13 is a lifting platform; 131 is a rotating piece; 14 is a mounting platform; 15 is a boss; 16 is a temperature control base; 2 is a drying cylinder; 21 is a cylinder body; 211 is an air inlet; 212 is an air outlet; 213 is a first ring plate; 214 is a first sealing ring; 2141 is a gap; 215 is a ring cavity; 2151 is a ring groove; 216 is an air outlet hole; 2161 is a sealing plate; 217 is a second ring plate; 218 is a second sealing ring; 22 is a fixing assembly; 221 is a connecting plate; 222 is a mounting pipe; 2221 is a guide channel; 223 is a threaded rod; 224 is a piston; 225 is a suction cup; 2251 is a through hole. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments will be described clearly and completely below with reference to the drawings in the embodiments. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0021] As shown in Figure 1 , Figure 2 , Figure 3 , Figure 4 The present embodiment discloses a rheometer low-temperature test anti-condensation device, which is used when a rheometer 1 performs low-temperature flowability test on lubricating grease, and includes the rheometer 1 and a drying cylinder 2. The rheometer 1 includes a base 11, a lifting device 12, and a lifting platform 13 lifted along the lifting device 12. The base 11 is provided with a temperature control base 16, and the lifting platform 13 is provided with a rotating piece 131. During the test, the lubricating grease is applied to the upper end surface of the temperature control base 16. The lifting device 12 controls the lowering of the lifting platform 13, and the lower end surface of the rotating piece 131 abuts against the lubricating grease applied to the temperature control base 16 and the upper end surface of the temperature control base 16. The lifting platform 13 controls the rotation of the rotating piece 131 to perform the test.

[0022] As shown in Figure 1 , Figure 2 , Figure 3 The drying cylinder 2 is mounted on the base 11. The drying cylinder 2 includes a cylinder body 21. The upper end and the lower end of the cylinder body 21 are both provided with openings. The temperature control base 16 is located in the cylinder body 21. The upper end surface of the base 11 is provided with a mounting platform 14. The upper end surface of the mounting platform 14 is provided with a boss 15. The temperature control base 16 is mounted on the boss 15. The inner wall of the cylinder body 21 is attached to the side wall of the boss 15. The inner wall of the cylinder body 21 and the side wall of the boss 15 form a positioning, which provides positioning for the installation of the drying cylinder 2.

[0023] The cylinder 21 is provided with a first ring plate 213 located at the lower end of the cylinder 21, the first ring plate 213 is installed with a first sealing ring 214, the first sealing ring 214 abuts against the upper end surface of the mounting table 14, the lower end of the first sealing ring 214 is lower than the lower end of the cylinder 21, the first sealing ring 214 is U-shaped, a gap 2141 is provided between the first sealing ring 214 and the first ring plate 213, so that the first sealing ring 214 can be elastically deformed due to the existence of the gap 2141, the first sealing ring 214 can play a certain sealing effect on the lower end edge of the cylinder 21, preventing external air from entering the cylinder 21.

[0024] As shown in Figure 4 The drying cylinder 2 includes a fixed assembly 22 installed on the side wall of the cylinder 21, the fixed assembly 22 is provided with two, the two fixed assemblies 22 are annularly distributed, the fixed assembly 22 includes a connecting plate 221, a mounting pipe 222, a threaded rod 223, a piston 224, and a suction cup 225, the connecting plate 221 is fixed to the side wall of the cylinder 21, the mounting pipe 222 is fixedly installed on the connecting plate 221, the mounting pipe 222 is internally provided with a guide channel 2221, the threaded rod 223 is threadedly connected with the mounting pipe 222, the threaded rod 223 is at least partially located in the guide channel 2221, the piston 224 is located in the guide channel 2221, the piston 224 is fixedly installed on the lower end of the threaded rod 223, rotating the threaded rod 223 can control the piston 224 to move up and down along the guide channel 2221, the suction cup 225 is installed on the lower end of the mounting pipe 222, the suction cup 225 is in the shape of a bowl with an opening facing downward, the suction cup 225 is provided with a through hole 2251, the through hole 2251 communicates the guide channel 2221 and the inside of the suction cup 225, the upward movement of the piston 224 increases the space communicated by the suction cup 225 and the guide channel 2221, and reduces the internal pressure, so that the suction cup 225 can be adsorbed to the upper end surface of the base 11, similarly, rotating the threaded rod 223 can control the piston 224 to move downward to release the adsorption of the suction cup 225, facilitating the installation and disassembly of the drying cylinder 2.

[0025] The cylinder 21 is provided with a second ring plate 217 located at the upper end of the cylinder 21, the second ring plate 217 is installed with a second sealing ring 218, the structure of the second ring plate 217 and the second sealing ring 218 is the same as that of the first ring plate 213 and the first sealing ring 214, when the rotating part 131 abuts against the upper end surface of the temperature control base 16, the upper end of the cylinder 21 abuts against the lifting table 13, the second sealing ring 218 can abut against the lifting table 13, the second sealing ring 218 can be sealed when the lifting table 13 abuts against the cylinder 21, preventing external air from entering the cylinder 21.

[0026] In order to keep the air inside the barrel 21 dry, the barrel 21 comprises at least one air inlet 211 and at least one air outlet 212, the air inlet 211 and the air outlet 212 are located on the side wall of the barrel 21, and the air inlet 211 and the air outlet 212 are provided with a height difference, the air inlet 211 is connected with an external dryer, the air inlet 211 continuously introduces dry air, which can keep the air inside the barrel 21 dry during the experiment, and prevent the temperature control base 16 from condensing water and icing during low temperature experiment.

[0027] The barrel 21 is provided with an annular groove 2151 which is communicated with the air inlet 211, the barrel 21 is provided with a sealing plate 2161 which seals the annular groove 2151, the sealing plate 2161 and the annular groove 2151 form an annular cavity 215, the barrel 21 is provided with the annular cavity 215, the air inlet 211 is communicated with the annular cavity 215, the air outlet hole 216 is located on the sealing plate 2161, the side wall of the barrel 21 forms a plurality of air outlet holes 216, the plurality of air outlet holes 216 are distributed in a ring shape, the air outlet hole 216 is communicated with the inside of the barrel 21 and the annular cavity 215, and the air outlet hole 216 is not directly communicated with the air inlet 211, the air inlet 211 and the air outlet hole 216 are distributed in a staggered manner, the dry air has a certain flow pressure, the annular cavity 215 can well play a role in dispersing pressure and buffering, the annular cavity 215 is located at the upper part of the barrel 21, the dry air enters the barrel 21 from the upper part of the barrel 21, the air outlet 212 is located at the lower end of the barrel 21, and the air outlet 212 just forms the inlet and outlet of the temperature control base 16 and the circulator connecting line.

[0028] The above only describes the preferred embodiments of the present application, and the protection scope of the present application is not limited to the above-mentioned embodiments, and any technical solutions falling within the concept of the present application shall fall within the protection scope of the present application. It should be noted that for ordinary skilled persons in the art, some improvements and decorations without departing from the principles of the present application can also be considered as the protection scope of the present application.

Claims

1. A rheometer low-temperature testing anti-condensation device, characterized in that, The apparatus includes a rheometer (1) and a drying cylinder (2). The rheometer (1) includes a base (11), a lifting device (12), and a lifting platform (13) that moves along the lifting device (12). The base (11) is provided with a temperature control base (16), and the lifting platform (13) is provided with a rotating component (131). The drying cylinder (2) is mounted on the base (11) and includes a cylinder (21). The upper and lower ends of the cylinder (21) are provided with openings. The temperature control base (16) is located on the cylinder. Inside the body (21), when the rotating part (131) abuts against the upper end face of the temperature control base (16), the upper end of the cylinder (21) abuts against the lifting platform (13). The cylinder (21) includes at least one air inlet (211) and at least one air outlet (212). The air inlet (211) and the air outlet (212) are both located on the side wall of the cylinder (21). There is a height difference between the air inlet (211) and the air outlet (212). Dry air is introduced through the air inlet (211).

2. The anti-condensation device for low-temperature testing of a rheometer according to claim 1, characterized in that, The upper surface of the base (11) is provided with a mounting platform (14), and the upper surface of the mounting platform (14) is provided with a boss (15). The temperature control base (16) is installed on the boss (15), and the inner wall of the cylinder (21) is in contact with the side wall of the boss (15).

3. The anti-condensation device for low-temperature testing of a rheometer according to claim 2, characterized in that, The cylinder (21) is provided with a first ring plate (213), the first ring plate (213) is located at the lower end of the cylinder (21), the first ring plate (213) is equipped with a first sealing ring (214), the first sealing ring (214) abuts against the upper end face of the mounting platform (14), and the lower end of the first sealing ring (214) is lower than the lower end of the cylinder (21).

4. The anti-condensation device for low-temperature testing of a rheometer according to claim 1, characterized in that, The cylinder (21) is provided with a second ring plate (217), which is located at the upper end of the cylinder (21). The second ring plate (217) is equipped with a second sealing ring (218), which can abut against the lifting platform (13).

5. The anti-condensation device for low-temperature testing of a rheometer according to claim 1, characterized in that, The cylinder (21) is provided with an annular cavity (215), the air inlet (211) is connected to the annular cavity (215), and the side wall of the cylinder (21) is provided with a plurality of air outlets (216), which are arranged in a ring shape and are connected to the interior of the cylinder (21) and the annular cavity (215).

6. The anti-condensation device for low-temperature testing of a rheometer according to claim 5, characterized in that, The cylinder (21) is provided with an annular groove (2151), which is connected to the air inlet (211). The cylinder (21) is equipped with a sealing plate (2161), which closes the annular groove (2151). The sealing plate (2161) and the annular groove (2151) form the annular cavity (215). The air outlet (216) is located on the sealing plate (2161).

7. The anti-condensation device for low-temperature testing of a rheometer according to claim 1, characterized in that, The drying cylinder (2) includes a fixing component (22), which is installed on the side wall of the cylinder body (21). There are at least two fixing components (22), which are arranged in a ring. The lower end of the fixing component (22) is provided with a suction cup (225), which can be adsorbed onto the upper surface of the base (11).

8. The anti-condensation device for low-temperature testing of a rheometer according to claim 7, characterized in that, The fixing assembly (22) includes a connecting plate (221), a mounting tube (222), a threaded rod (223), and a piston (224). The connecting plate (221) is fixed to the side wall of the cylinder (21), and the mounting tube (222) is fixedly installed on the connecting plate (221). The mounting tube (222) has a guide channel (2221) inside. The threaded rod (223) is threadedly connected to the mounting tube (222), and the threaded rod (223) is at least partially located in the guide channel. Inside the guide channel (2221), the piston (224) is located inside the guide channel (2221). The piston (224) is fixedly installed at the lower end of the threaded rod (223). The suction cup (225) is installed at the lower end of the mounting tube (222). The suction cup (225) is bowl-shaped with an opening facing downwards. The suction cup (225) is provided with a through hole (2251). The through hole (2251) connects the guide channel (2221) and the interior of the suction cup (225).

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