Air thermal aging test box for rubber parts

Abstract

The utility model discloses an air thermal aging test box for a rubber part, which belongs to the technical field of rubber manufacturing and comprises a test box, a rotating component and a telescopic component are arranged in the test box; according to the utility model, through the arrangement of the rotating assembly, the driving motor on the test box is started, the driving motor drives the reciprocating screw rod to rotate, the reciprocating screw rod drives the threaded sleeve to reciprocate through threads, the threaded sleeve drives the connecting plates on the two sides to reciprocate, the connecting plates drive the rotating rod to move, and the worm gears on the two sides drive the rotating rod to rotate; the rotating rod drives the fixing plate to rotate, so that the rubber part is exposed under the same temperature condition, the aging difference caused by local overheating or uneven cooling is reduced, the dynamic condition possibly more effectively simulates the stress condition in a real environment than the static condition, the performance of the material in actual use is better evaluated, and the service life of the material is prolonged. And the consistency and repeatability of experimental results can be improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of rubber production, and particularly relates to a rubber part air heat aging test box. Background Art

[0002] Rubber refers to a highly elastic polymer material with reversible deformation. It is elastic at room temperature, can produce large deformation under very small external force, and can return to its original state after removing the external force. Rubber belongs to a completely amorphous polymer. Rubber is divided into natural rubber and synthetic rubber. Natural rubber is processed from the gum extracted from plants such as rubber trees and rubber grass, and synthetic rubber is obtained by polymerization of various monomers. Rubber products are widely used in various aspects of industry or life.

[0003] In the air heat aging test of rubber parts, it may not be possible to make the rubber parts contact the air evenly, resulting in overheating or too low temperature locally, unable to simulate the actual situation well, reducing the test effect of the rubber parts, thus reducing the evaluation result of the rubber parts, and in the placement plate used, it cannot handle rubber parts of different sizes, reducing the flexibility of the equipment. Therefore, a rubber part air heat aging test box is proposed. Summary of the Utility Model

[0004] The purpose of the utility model is to propose a rubber part air heat aging test box to solve the problem that it may not be possible to make the rubber parts contact the air evenly, resulting in overheating or too low temperature locally, and unable to simulate the actual situation well.

[0005] To achieve the above purpose, the utility model adopts the following technical scheme: a rubber part air heat aging test box, including a test box, a rotation assembly is arranged inside the test box, and a telescopic assembly is arranged inside the test box;

[0006] The rotation assembly includes a driving motor and a partition board. The lower surface of the driving motor is fixedly connected to the inner bottom wall of the test box. The side wall of the partition board is fixedly connected to the inner side wall of the test box. The output end of the driving motor is fixedly installed with a reciprocating lead screw.

[0007] As a further description of the above technical scheme:

[0008] One end of the reciprocating lead screw extends outside the upper surface of the partition board. A toothed belt is fixedly installed on the upper surface of the partition board. A threaded sleeve is threadedly installed on the outer surface of the reciprocating lead screw.

[0009] As a further description of the above technical scheme:

[0010] A fixed sleeve is fixedly installed on the side wall of the threaded sleeve. The inner wall of the fixed sleeve is attached to the outer surface of the toothed belt. A fixed frame is fixedly installed on the lower surface of the fixed sleeve. A rotating rod is rotatably installed on the inner wall of the fixed frame. A gear is fixedly installed on the outer wall of the rotating rod. The gear is meshed with the toothed belt.

[0011] As a further description of the above technical solution:

[0012] Worms are fixedly installed at both ends of the rotating rod. A connecting plate is fixedly installed on the other side wall of the threaded sleeve. A rotating rod is rotatably installed on the inner wall of the connecting plate. One end of the rotating rod extends outside the lower surface of the connecting plate and is fixedly installed with a worm gear. The worm gear is meshed with the worm. The other end of the rotating rod extends outside the upper surface of the connecting plate.

[0013] As a further description of the above technical solution:

[0014] The telescopic assembly includes a fixed plate. The lower surface of the fixed plate is fixedly connected to the other end of the rotating rod. The outer surface of the fixed plate is slidably installed with a telescopic sleeve. Positioning holes are provided on the inner side wall of the telescopic sleeve.

[0015] As a further description of the above technical solution:

[0016] A groove is provided on the side wall of the fixed plate. A telescopic spring is fixedly installed on the inner side wall of the groove. A positioning bead is fixedly installed at one end of the telescopic spring. The positioning bead is attached to the positioning hole of the telescopic sleeve.

[0017] In summary, due to the adoption of the above technical solution, the beneficial effects of the present utility model are:

[0018] 1. In the present utility model, by providing a rotating assembly, when the driving motor on the test chamber is started, the driving motor drives the reciprocating lead screw to rotate. The reciprocating lead screw drives the threaded sleeve to reciprocate through the thread. The threaded sleeve drives the connecting plates on both sides to reciprocate. The connecting plates drive the rotating rod to move. The rotating rod drives the fixed plate to move. At the same time, the rotating rod drives the worm gear to move. Furthermore, the gear drives the rotating rod to rotate while rotating. The rotating rod drives the worms on both sides to rotate. The worms on both sides drive the corresponding worm gears to rotate. The worm gears on both sides drive the rotating rod to rotate. The rotating rod drives the fixed plate to rotate, which helps to expose the rubber parts under the same temperature conditions, thereby reducing the aging difference caused by local overheating or uneven cooling. The dynamic conditions may more effectively simulate the stress situation in the real environment than the static conditions, thus better evaluating the performance of the material in actual use and helping to improve the consistency and repeatability of the experimental results.

[0019] 2. In the present utility model, by providing a telescopic component, when conducting an air heat aging test on a rubber part, according to the size of the rubber part, the telescopic sleeves on both sides of the fixing plate are toggled, and the telescopic sleeves on both sides are moved in opposite directions. Supported by the fixing plate, the telescopic spring positions the positioning beads in the positioning holes of the telescopic sleeves through elastic force. At this time, the rubber part is placed on the fixing plate, which helps to improve the flexibility of the placement plate, expand the usage range of the placement plate, enable the placement plate to handle rubber parts of different sizes, and thus improve the working efficiency of the test chamber. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 FIG. 6 is a three-dimensional structural schematic diagram of an air heat aging test chamber for rubber parts.

[0021] Figure 2 FIG. 10 is an internal three-dimensional exploded structural schematic diagram of an air heat aging test chamber for rubber parts.

[0022] Figure 3 FIG. 14 is a partial three-dimensional exploded structural schematic diagram of a rotating component of an air heat aging test chamber for rubber parts.

[0023] Figure 4 FIG. 18 is a three-dimensional exploded structural schematic diagram of a connecting plate and a rotating rod in an air heat aging test chamber for rubber parts.

[0024] Figure 5 FIG. 22 is a partial three-dimensional exploded structural schematic diagram of a telescopic component of an air heat aging test chamber for rubber parts.

[0025] LEGEND DESCRIPTION:

[0026] 1. Test chamber; 2. Rotating component; 21. Driving motor; 22. Partition; 23. Reciprocating lead screw; 24. Toothed belt; 25. Fixed sleeve; 26. Connecting plate; 27. Threaded sleeve; 28. Fixed bracket; 29. Rotating rod; 210. Gear; 211. Worm; 212. Worm gear; 213. Rotating rod; 3. Telescopic component; 31. Fixing plate; 32. Telescopic sleeve; 33. Telescopic spring; 34. Positioning bead. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

[0028] Please refer to Figures 1-5, the present utility model provides a technical solution: a rubber part air heat aging test chamber, including a test chamber 1, a rotating assembly 2 is arranged inside the test chamber 1, and a telescopic assembly 3 is arranged inside the test chamber 1;

[0029] The rotating assembly 2 includes a driving motor 21 and a partition plate 22. The lower surface of the driving motor 21 is fixedly connected to the inner wall of the bottom surface of the test chamber 1. The side wall of the partition plate 22 is fixedly connected to the inner side wall of the test chamber 1. The output end of the driving motor 21 is fixedly installed with a reciprocating lead screw 23. One end of the reciprocating lead screw 23 extends outside the upper surface of the partition plate 22. A toothed belt 24 is fixedly installed on the upper surface of the partition plate 22. A threaded sleeve 27 is threadedly installed on the outer surface of the reciprocating lead screw 23. A fixed sleeve 25 is fixedly installed on the side wall of the threaded sleeve 27. The inner wall of the fixed sleeve 25 fits the outer surface of the toothed belt 24. A fixed frame 28 is fixedly installed on the lower surface of the fixed sleeve 25. A rotating rod 29 is rotatably installed on the inner wall of the fixed frame 28. A gear 210 is fixedly installed on the outer wall of the rotating rod 29. The gear 210 is meshed with the toothed belt 24. Worms 211 are fixedly installed at both ends of the rotating rod 29. A connecting plate 26 is fixedly installed on the other side wall of the threaded sleeve 27. A rotating rod 213 is rotatably installed on the inner wall of the connecting plate 26. One end of the rotating rod 213 extends outside the lower surface of the connecting plate 26 and is fixedly installed with a worm gear 212. The worm gear 212 is meshed with the worm 211. The other end of the rotating rod 213 extends outside the upper surface of the connecting plate 26.

[0030] The specific implementation method is as follows: At this time, start the driving motor 21 on the test chamber 1. The driving motor 21 drives the reciprocating lead screw 23 to rotate. The reciprocating lead screw 23 drives the threaded sleeve 27 to reciprocate through the thread. The threaded sleeve 27 drives the two side connecting plates 26 to reciprocate. The connecting plate 26 drives the rotating rod 213 to move. The rotating rod 213 drives the fixing plate 31 to move. At the same time, the rotating rod 213 drives the worm gear to move. While the threaded sleeve 27 moves, it drives the fixed sleeve 25 to slide on the toothed belt 24 on the partition plate 22. The fixed sleeve 25 drives the fixed frame 28 to move. The fixed frame 28 drives the gear 210 on the rotating rod 29 to rotate on the toothed belt 24. Furthermore, while the gear 210 rotates, it drives the rotating rod 29 to rotate. The rotating rod 29 drives the two side worms 211 to rotate. The two side worms 211 drive the corresponding worm gears 212 to rotate. The two side worm gears 212 drive the rotating rod 213 to rotate. The rotating rod 213 drives the fixing plate 31 to rotate.

[0031] The telescopic assembly 3 includes a fixed plate 31, the lower surface of which is fixedly connected to the other end of the rotating rod 213, a telescopic sleeve 32 is slidably mounted on the outer surface of the fixed plate 31, a positioning hole is provided on the inner side wall of the telescopic sleeve 32, a groove is provided on the side wall of the fixed plate 31, a telescopic spring 33 is fixedly mounted on the inner side wall of the groove, a positioning bead 34 is fixedly mounted on one end of the telescopic spring 33, and the positioning bead 34 fits in the positioning hole of the telescopic sleeve 32.

[0032] The specific implementation method is as follows: when the rubber part is subjected to an air heat aging test, the telescopic sleeves 32 on both sides of the fixed plate 31 are moved according to the size of the rubber part, and the telescopic sleeves 32 on both sides are moved in opposite directions. Under the support of the fixed plate 31, the telescopic spring 33 positions the positioning bead 34 in the positioning hole of the telescopic sleeve 32 through elastic force, and the rubber part is placed on the fixed plate 31 at this time.

[0033] Working principle: When the rubber part is subjected to air heat aging test, the telescopic sleeves 32 on both sides of the fixed plate 31 are moved according to the size of the rubber part, and the telescopic sleeves 32 on both sides are moved in the opposite direction. Under the support of the fixed plate 31, the telescopic spring 33 positions the positioning bead 34 in the positioning hole of the telescopic sleeve 32 through elastic force. At this time, the rubber part is placed on the fixed plate 31, and the driving motor 21 on the test box 1 is started. The driving motor 21 drives the reciprocating screw rod 23 to rotate. The reciprocating screw rod 23 drives the threaded sleeve 27 to reciprocate through the thread. The threaded sleeve 27 drives the connecting plates 26 on both sides to reciprocate, and the connecting plates 26 drive the rotating rod 213 The rotating rod 213 drives the fixed plate 31 to move, and the rotating rod 213 drives the worm wheel to move. When the threaded sleeve 27 moves, the fixed sleeve 25 is driven to slide on the toothed belt 24 on the partition 22. The fixed sleeve 25 drives the fixed frame 28 to move. The fixed frame 28 drives the gear 210 on the rotating rod 29 to rotate on the toothed belt 24. Then, the gear 210 drives the rotating rod 29 to rotate while rotating. The rotating rod 29 drives the worms 211 on both sides to rotate. The worms 211 on both sides drive the corresponding worm wheels 212 to rotate. The worm wheels 212 on both sides drive the rotating rod 213 to rotate. The rotating rod 213 drives the fixed plate 31 to rotate.

[0034] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A rubber part air heat aging test chamber, characterized in that: It includes a test chamber (1), inside which a rotating assembly (2) and a telescopic assembly (3) are provided. The rotating assembly (2) includes a driving motor (21) and a partition board (22). The lower surface of the driving motor (21) is fixedly connected to the inner bottom wall of the test chamber (1). The side wall of the partition board (22) is fixedly connected to the inner side wall of the test chamber (1). The output end of the driving motor (21) is fixedly installed with a reciprocating lead screw (23).

2. The air thermal aging test chamber for rubber parts according to claim 1, wherein One end of the reciprocating lead screw (23) extends outside the upper surface of the partition board (22). A toothed belt (24) is fixedly installed on the upper surface of the partition board (22). A threaded sleeve (27) is threadedly installed on the outer surface of the reciprocating lead screw (23).

3. The air heat aging test chamber for rubber parts according to claim 2, characterized in that, A fixed sleeve (25) is fixedly installed on the side wall of the threaded sleeve (27). The inner wall of the fixed sleeve (25) is in fit with the outer surface of the toothed belt (24). A fixed bracket (28) is fixedly installed on the lower surface of the fixed sleeve (25). A rotating rod (29) is rotatably installed on the inner wall of the fixed bracket (28). A gear (210) is fixedly installed on the outer wall of the rotating rod (29). The gear (210) is meshed with the toothed belt (24).

4. The air heat aging test chamber for rubber parts according to claim 3, wherein, Worms (211) are fixedly installed at both ends of the rotating rod (29). A connecting plate (26) is fixedly installed on the other side wall of the threaded sleeve (27). A rotating rod (213) is rotatably installed on the inner wall of the connecting plate (26). One end of the rotating rod (213) extends outside the lower surface of the connecting plate (26) and is fixedly installed with a worm gear (212). The worm gear (212) is meshed with the worms (211). The other end of the rotating rod (213) extends outside the upper surface of the connecting plate (26).

5. The air heat aging test chamber for rubber parts according to claim 4, characterized in that, The telescopic assembly (3) includes a fixing plate (31). The lower surface of the fixing plate (31) is fixedly connected to the other end of the rotating rod (213). A telescopic sleeve (32) is slidably installed on the outer surface of the fixing plate (31). Positioning holes are provided on the inner side wall of the telescopic sleeve (32).

6. The air heat aging test chamber for rubber parts according to claim 5, characterized in that A groove is provided on the side wall of the fixing plate (31). A telescopic spring (33) is fixedly installed on the inner side wall of the groove. One end of the telescopic spring (33) is fixedly installed with a positioning bead (34). The positioning bead (34) is in fit with the positioning holes of the telescopic sleeve (32).

Images