Rotary sample holder and drying oven

Abstract

The utility model relates to a rotary sample holder and an oven in the technical field of material testing. The rotary sample holder comprises a main shaft; the two circular ring fixers are coaxially arranged on the main shaft respectively, and the two circular ring fixers are arranged on the main shaft in a spaced mode; the plurality of sample holders are uniformly divided into two groups, and the two groups of sample holders are respectively mounted on the two circular ring fixers; the driver is arranged on the main shaft and used for driving the main shaft to rotate around the axis of the main shaft. The rotary sample holder can ensure that each group of samples are heated consistently and uniformly in the test process, and the accuracy of a rubber aging test result is improved.

Description

Technical Field

[0001] The present application relates to the technical field of material testing, and in particular to a rotating sample rack and an oven. Background Art

[0002] Rubber is widely used in many fields such as automobiles, construction, industrial manufacturing, and aerospace due to its unique high elasticity, wear resistance, and weather resistance. However, rubber will age over time, and temperature is an important influencing factor. Using oven heating to simulate the actual use environment of rubber for rubber aging testing is an important method to predict the actual application life of rubber products. However, due to the different positions of the heating coupler, blast port, and sensor in the oven, the temperature of each area in the oven will be different, thus affecting the test results. Utility Model Content

[0003] In view of the problems existing in the background technology, the present application provides a rotating sample rack and an oven, wherein the rotating sample rack can ensure that each group of samples is heated consistently and evenly during the test, thereby improving the accuracy of the rubber aging test results.

[0004] According to one aspect of the utility model, a rotating sample rack is provided, comprising: a main shaft; two circular ring fixtures, respectively coaxially arranged on the main shaft, the two circular ring fixtures being spaced apart on the main shaft; a plurality of sample clamps, each divided into two groups, the two groups of sample clamps being respectively mounted on the two circular ring fixtures; a driver, arranged on the main shaft, for driving the main shaft to rotate around its axis.

[0005] By using the rotating sample holder in the technical solution, the main shaft and two circular ring holders are installed in the oven. When performing the rubber aging test, the two ends of the rubber sample to be tested are respectively fixed on a sample holder on each of the two circular ring holders, and then the oven is started, the oven heating temperature and time program are set, the rubber sample to be tested is heated, and the driver is turned on so that the driver continuously drives the main shaft to rotate, so that each rubber sample to be tested is heated evenly in the oven, thereby ensuring the accuracy of the rubber aging test results and improving the credibility of the experiment.

[0006] In some embodiments of the present invention, the annular fixer is detachably connected to the main shaft.

[0007] In some embodiments of the present invention, the annular fixer is connected to the main shaft by a snap-fit ​​structure.

[0008] In some embodiments of the present invention, the main shaft adopts a telescopic rod structure.

[0009] In some embodiments of the present invention, the maximum extension of the main shaft is 25 cm.

[0010] In some embodiments of the present invention, the two groups of sample holders are respectively installed on opposite sides of the two circular holders.

[0011] In some embodiments of the present invention, the driver is a motor.

[0012] According to another aspect of the present invention, a drying oven is provided, comprising a box body and the above-mentioned rotating sample rack.

[0013] In some embodiments of the present invention, the main shaft is disposed in the box body, a bracket is installed in the box body at one end of the main shaft, and the main shaft is rotatably connected to the bracket.

[0014] In some embodiments of the present invention, one end of the main shaft away from the bracket passes through the outside of the box, and the driver is installed on the end of the main shaft away from the bracket. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present application. Also, the same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0016] Figure 1 It is a schematic diagram of the structure of the sample holder assembled in the oven according to the embodiment of the present application.

[0017] The reference numerals in the accompanying drawings represent the following: 1, main shaft; 11, first rod body; 12, second rod body; 2, ring fixer; 3, sample holder; 4, driver; 5, buckle structure; 6, box body; 7, bracket. DETAILED DESCRIPTION

[0018] It should be clear that 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 ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0019] When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Instead, they are only examples of devices and methods consistent with some aspects of the present application as detailed in the attached claims.

[0020] In the description of the present application, it should be understood that the terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances. In addition, in the description of the present application, unless otherwise specified, "multiple" refers to two or more. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the objects associated before and after are in an "or" relationship.

[0021] The rotating sample rack and the oven provided in the embodiments of the present application are described below with reference to the accompanying drawings.

[0022] The present application embodiment discloses a rotating sample holder, such as Figure 1 As shown, the rotating sample rack includes a main shaft 1, two circular ring fixtures 2, multiple sample clamps 3 and a driver 4; wherein, the two circular ring fixtures 2 are coaxially arranged on the main shaft 1, and the two circular ring fixtures 2 are arranged at intervals on the main shaft 1; the multiple sample clamps 3 are divided into two groups, and the two groups of sample clamps 3 are respectively installed on the two circular ring fixtures 2; the driver 4 is arranged on the main shaft 1, and the driver 4 is used to drive the main shaft 1 to rotate around its axis.

[0023] By using the rotating sample holder in the technical solution, the main shaft 1 and the two circular ring holders 2 are installed in the oven. When the rubber aging test is performed, the two ends of the rubber sample to be tested are respectively fixed on a sample clamp 3 on each of the two circular ring holders 2, and the clamping operation is repeated until all the rubber samples to be tested are fixed between the two circular ring holders 2. Then, the oven is started, the oven heating temperature and time program are set, the rubber samples to be tested are heated, and the driver 4 is turned on to make the driver 4 continuously drive the main shaft 1 to rotate, so that each rubber sample to be tested is heated evenly in the oven. After the program is completed, the main shaft 1 stops rotating and the sample is taken out, thereby ensuring the accuracy of the rubber aging test results and improving the credibility of the experiment.

[0024] In some embodiments of the present invention, Figure 1 As shown, the ring fixture 2 is detachably connected to the main shaft 1. Through the detachable connection between the ring fixture 2 and the main shaft 1, the position of the ring fixture 2 on the main shaft 1 can be adjusted, thereby adjusting the distance between the sample holders 3 on the two ring fixtures 2, and then the distance between the two ring fixtures 2 can be adaptively adjusted according to the length of the rubber sample to be tested, ensuring that the rubber sample to be tested is in the best extension state.

[0025] Specifically, the ring fixer 2 and the main shaft 1 in this embodiment can adopt a snap-on structure 5 to achieve a detachable connection. One side of the snap-on structure 5 is fixed to the ring fixer 2. The snap-on structure 5 includes but is not limited to a quick-release fixing snap-on, an ordinary clamp, etc. The snap-on structure 5 preferably adopts a quick-release fixing snap-on to achieve rapid adjustment and stable fixation of the position of the ring fixer 2 on the main shaft 1.

[0026] In other embodiments, the annular fixer 2 and the main shaft 1 may also be detachably connected via a structure in which a sleeve cooperates with a tightening screw.

[0027] In some embodiments of the present invention, Figure 1 As shown, the main shaft 1 adopts a telescopic rod structure. The main shaft 1 adopts a telescopic rod structure, which can adjust the length of the main shaft 1 within a certain length range, so that the length of the main shaft 1 can be adaptively adjusted according to the height of the oven, so that the rotating sample rack can adapt to ovens of more specifications.

[0028] Specifically, the main shaft 1 in this embodiment includes a first rod body 11 and a second rod body 12. The diameter of the second rod body 12 is smaller than that of the first rod body 11. One end of the first rod body 11 is provided with a slideway coaxial with the first rod body 11. The slideway is adapted to the second rod body 12. The overall length of the main shaft 1 is adjusted by adjusting the depth of the second rod body 12 extending into the slideway.

[0029] Furthermore, the first rod body 11 and the second rod body 12 can be locked by a tightening screw.

[0030] Furthermore, the maximum extension of the main shaft 1 is 25 cm. It is understandable that the maximum extension of the main shaft 1 is closely related to the height range of the oven to which it can be adapted, so the maximum extension of the main shaft 1 can be specifically set according to needs.

[0031] In some embodiments of the present invention, Figure 1 As shown, two groups of sample clamps 3 are respectively installed on opposite sides of the two circular fixers 2, which can facilitate operation and improve the fixing efficiency of the rubber sample to be tested.

[0032] The annular fixer 2 in this embodiment is a circular plate, a through hole is provided in the center of the circular plate for the main shaft 1 to pass through, and further, a plurality of weight-reducing holes are provided on the circular plate, which can reduce the load-bearing capacity of the buckle structure 5 and improve the fixing stability of the buckle structure 5.

[0033] Specifically, the sample holder 3 in this embodiment includes but is not limited to a metal clamp, a wooden clamp or a heat-resistant plastic clamp, etc., which can ensure stable clamping of the rubber sample to be tested; further, the sample holder 3 is connected to the circular plate by bolts.

[0034] In some embodiments of the present invention, Figure 1 As shown, the driver 4 is a motor; further, the motor is preferably a motor with adjustable speed, so that a matching motor speed can be selected according to the experimental conditions of rubber aging, so that the rubber sample to be tested rotates at a uniform speed in the oven.

[0035] Specifically, the output shaft of the motor in this embodiment is coaxially connected with the main shaft 1 in a threaded manner. The motor is immovable relative to the main shaft 1, and the output shaft of the motor drives the main shaft 1 to rotate, thereby realizing the uniform rotation of the ring holder 2, the sample holder 3 and the rubber sample to be tested in the oven.

[0036] In other embodiments, the driver 4 may also adopt a structure in which a motor cooperates with gears or a transmission belt to drive the main shaft 1 to rotate.

[0037] Another embodiment of the utility model provides an oven, such as Figure 1 As shown, the oven comprises a box body 6 and a rotating sample holder in any of the above-mentioned embodiments; a heating couple (not shown) is mounted on the box body 6.

[0038] In some embodiments of the present invention, Figure 1 As shown, the main shaft 1 is arranged in a box body 6, and a bracket 7 is installed at one end of the main shaft 1 in the box body 6, and the main shaft 1 is rotatably connected with the bracket 7. The bracket 7 can improve the stability of the main shaft 1 driven by the driver 4 to rotate.

[0039] In some embodiments of the present invention, Figure 1 As shown, one end of the main shaft 1 away from the bracket 7 passes through the outside of the box 6, and the driver 4 is installed at the end of the main shaft 1 away from the bracket 7. The driver 4 is arranged outside the box 6, which can improve the protection of the driver 4.

[0040] Furthermore, the spindle 1 is vertically arranged in the box 6, the bracket 7 is located at the inner bottom of the box 6, the top of the spindle 1 passes through the top of the box 6, the driver 4 is installed on the top of the box 6, and a vent is provided on the top of the box 6 (not shown).

[0041] The oven of this embodiment has all the technical effects of the rotating sample holder of this embodiment, and the specific structure and technical effects of the oven are not described in detail here. It should be noted that this embodiment only describes in detail the key technical features related to this case, and as for the technical features not related to this case, this embodiment only makes a simple illustration and a simple description. For example, this embodiment only briefly describes the oven, and the specific structure of the oven is not described in detail here.

[0042] The above is only a preferred specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A rotating sample holder, characterized in that: include: Spindle; Two annular fixers are coaxially arranged on the main shaft, and the two annular fixers are spaced apart on the main shaft; A plurality of sample holders are divided into two groups, and the two groups of sample holders are respectively mounted on the two ring holders; The driver is arranged on the main shaft and is used for driving the main shaft to rotate around its axis.

2. The rotating sample holder according to claim 1, characterized in that: The annular fixer is detachably connected to the main shaft.

3. The rotating sample holder according to claim 2, characterized in that: The annular fixer is connected to the main shaft by a snap-fit ​​structure.

4. The rotating sample holder according to claim 1, characterized in that: The main shaft adopts a telescopic rod structure.

5. The rotating sample holder according to claim 4, characterized in that: The maximum extension of the main shaft is 25 cm.

6. The rotating sample holder according to any one of claims 1 to 5, characterized in that: The two groups of sample holders are respectively installed on the opposite sides of the two circular ring fixtures.

7. The rotating sample holder according to any one of claims 1 to 5, characterized in that: The driver is a motor.

8. An oven, characterized in that: The invention comprises a housing and a rotating sample holder as claimed in any one of claims 1 to 7.

9. The oven according to claim 8, characterized in that The main shaft is arranged in the box body, and a bracket is installed in the box body at one end of the main shaft, and the main shaft is rotatably connected to the bracket.

10. The oven according to claim 9, characterized in that One end of the main shaft away from the bracket passes through the outside of the box, and the driver is installed on the end of the main shaft away from the bracket.

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