Heat insulation type rotary drum mechanism and rotary drum testing machine comprising same

Abstract

The utility model discloses a heat insulation type rotary drum mechanism and a rotary drum testing machine including the same, the heat insulation type rotary drum mechanism comprises a rotary drum with an inner ring and an outer ring, the inner side of the outer ring is provided with a plurality of first teeth, the outer side of the inner ring is provided with a plurality of groups of second teeth and third teeth located at two sides of the first teeth, a first heat insulation material is filled between the second tooth and the third tooth which are adjacent to each first tooth, and a second heat insulation material is arranged between the second tooth and the third tooth which are adjacent to each first tooth; the rotary drum can solve the problems that a traditional rotary drum is low in heating efficiency and high in heating cost.

Description

TECHNICAL FIELD

[0001] The utility model relates to tire test equipment field, concretely relates to a heat insulation formula drum mechanism and drum testing machine containing it. BACKGROUND

[0002] In the field of tire performance testing, the drum testing machine is the core equipment for simulating the high-temperature road driving condition of the tire. It detects the key parameters such as wear resistance, heat stability and durability of the tire by heating the surface of the drum and driving the tire to rotate. However, the volume of the traditional drum to be heated is large, and the total heat capacity is huge. It takes a long time to reach the target temperature of the drum, which requires a large power consumption, affects the tire test detection, and increases the detection cost. SUMMARY

[0003] The utility model aims at solving the above technical problem, that is, the problem of low heating efficiency and high heating cost of the traditional drum.

[0004] In the first aspect, the utility model provides a heat insulation formula drum mechanism, including the drum with the inner ring and the outer ring, the outer ring inboard is equipped with a plurality of first teeth, the inner ring outboard is equipped with a plurality of groups of second teeth and third teeth located in the two sides of the first tooth, wherein, the first tooth adjacent the second tooth and the third tooth are filled with the first heat insulation material, and the second tooth and the third tooth between the adjacent first teeth are configured with the second heat insulation material.

[0005] In the preferred technical scheme of the above heat insulation formula drum mechanism, the first heat insulation material is elastic rubber or plastic.

[0006] In the preferred technical scheme of the above heat insulation formula drum mechanism, the second heat insulation material is polyimide foam or EPP foam.

[0007] In the preferred technical scheme of the above heat insulation formula drum mechanism, the first tooth forms a first filling gap between the end away from the outer ring and the inner ring, and the first filling gap is filled with the first heat insulation material.

[0008] In the preferred technical scheme of the above heat insulation formula drum mechanism, the second tooth and / or the third tooth form a second filling gap between the end away from the inner ring and the inner side of the outer ring, and the second filling gap is filled with the first heat insulation material or the second heat insulation material.

[0009] In the preferred technical scheme of the above heat insulation formula drum mechanism, the width of the first filling gap and the second filling gap is 1-5mm.

[0010] In the preferred technical scheme of the heat insulation type rotary drum mechanism, the interval between the first tooth and the second tooth is 1-3mm, and the interval between the first tooth and the third tooth is 1-3mm.

[0011] In the preferred technical scheme of the heat insulation type rotary drum mechanism, the first tooth, the second tooth and the third tooth are made of stainless steel or titanium alloy.

[0012] In the second aspect, the utility model also provides a rotary drum testing machine, the rotary drum testing machine includes the heat insulation type rotary drum mechanism.

[0013] The utility model has the advantages that by filling the first heat insulation material between the first tooth and the second tooth and the third tooth, and filling the second heat insulation material between the second tooth and the third tooth between the adjacent two first teeth, the heat transfer from the outer ring of the rotary drum to the inner ring of the rotary drum can be reduced, the stability of the heating temperature of the heating device for the outer ring of the rotary drum can be ensured, the heating time can be reduced, the efficiency of the tire parameter detection of the utility model can be improved, and the loss of energy consumption can be reduced. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the connection relation diagram of the inner ring and the outer ring of the rotary drum.

[0015] Figure 2 It is the position relation diagram of the rotary drum and the tire.

[0016] In the figure: rotary drum 1, inner ring 11, second tooth 111, third tooth 112, outer ring 12, first tooth 121, first heat insulation material 2, second heat insulation material 3, rack 4, tire 5, first filling gap 6, second filling gap 7. DETAILED DESCRIPTION

[0017] The preferred embodiments of the utility model will be described below with reference to the drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the utility model, and are not intended to limit the protection scope of the utility model.

[0018] It should be noted that in the description of the utility model, the terms "upper", "lower", "left", "right", "front", "back" and other terms indicating direction or position relationship are based on the direction or position relationship shown in the drawings, which is only for the convenience of description, and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance.

[0019] In addition, it needs to be explained that, in the description of the utility model, unless another explicit provision and limitation, the term "set", "connected", "connected" should be broad sense, for example, can be fixed connection, can also be detachable connection, or integral connection. For the person skilled in the art, the above-mentioned terms can be understood according to the specific meaning in the utility model.

[0020] Based on the problems of low heating efficiency and high heating cost of the conventional rotary drum 1 pointed out in the background art. The utility model provides a heat insulation type rotary drum mechanism, which aims to fill the first heat insulation material 2 and the second heat insulation material 3 between the outer ring 12 and the inner ring 11 of the rotary drum 1, so that after the outer ring 12 of the rotary drum 1 is heated, the heat conduction of the outer ring 12 to the inner ring 11 is reduced, the heating time of the outer ring 12 of the rotary drum 1 is reduced, and the tire 5 test and detection cost is reduced.

[0021] As shown in Figures 1 to 2 The heat insulation type rotary drum mechanism of the utility model comprises a rotary drum 1 with an inner ring 11 and an outer ring 12, a plurality of first teeth 121 are arranged on the inner side of the outer ring 12, a plurality of groups of second teeth 111 and third teeth 112 are arranged on the outer side of the inner ring 11 and located on both sides of the first teeth 121, wherein the first heat insulation material 2 is filled between each adjacent second tooth 111 and third tooth 112 of each first tooth 121, and the second heat insulation material 3 is arranged between the second tooth 111 and the third tooth 112 between the adjacent first teeth 121.

[0022] Referring to Figure 1 , Figure 2 The heat insulation type rotary drum mechanism is used to simulate the high-temperature road driving condition of the tire 5 and can detect the wear resistance, thermal stability and durability of the tire 5. The heat insulation type rotary drum mechanism at least comprises a rack 4 and a rotary drum 1 rotatably arranged on the rack 4, the rack 4 is provided with a driving device for driving the rotary drum 1 to rotate, the driving device can be a servo motor, the heat insulation type rotary drum mechanism further comprises a heating device, the heating device is used to heat the outer ring 12 of the rotary drum 1, so that when the tire 5 contacts the outer ring 12 of the rotary drum 1, the high-temperature road driving condition of the tire 5 can be simulated, the heating device can be a heating coil, the magnetic field generated by the heating coil is used to heat the outer ring 12 of the rotary drum 1, in this way, the heating efficiency of the outer ring 12 of the rotary drum 1 can be greatly improved, the efficiency of the tire 5 parameter detection can be improved, and the utility is possessed.

[0023] Referring to Figure 2The drum 1 comprises an outer ring 12 and an inner ring 11, the outer ring 12 is internally provided with a plurality of first teeth 121, the plurality of first teeth 121 are uniformly distributed around the central axis of the outer ring 12, the inner ring 11 is externally provided with a plurality of groups of second teeth 111 and third teeth 112, wherein the first teeth 121 are located between the second teeth 111 and the third teeth 112, so that when the driving device drives the inner ring 11 to rotate, the rotation of the outer ring 12 is realized, so that the tire 5 in contact with the outer ring 12 of the drum 1 can be synchronously rotated; the first teeth 121 and the adjacent second teeth 111 and the first teeth 121 and the adjacent third teeth 112 are filled with a first heat insulation material 2, and the second teeth 111 and the third teeth 112 between the two adjacent first teeth 121 are filled with a second heat insulation material 3, the use of the first heat insulation material 2 and the second heat insulation material 3 can reduce the heat transfer from the outer ring 12 of the drum 1 to the inner ring 11 of the drum 1, reduce the heat loss rate of the outer ring 12 of the drum 1, and ensure the stability of the heating temperature of the heating device for the outer ring 12 of the drum 1, so that the heating device only needs to heat and adjust the outer ring 12 to the target temperature, which reduces the heating time and improves the efficiency of the parameter detection of the tire 5, reduces the energy loss, and has practicality.

[0024] In one or more embodiments, the first heat insulation material 2 is elastic rubber or plastic. Referring to Figure 2 The first heat insulation material 2 is used as a filling medium between the first teeth 121 and the second teeth 111 and between the first teeth 121 and the third teeth 112, which can effectively reduce the heat conduction from the first teeth 121 connected to the outer ring 12 to the inner ring 11, reduce the heat loss of the outer ring 12 of the drum 1, and improve the heating efficiency of the outer ring 12 of the drum 1. At the same time, the first heat insulation material 2 is made of rubber or plastic with heat resistance and elasticity, which can ensure that the second teeth 111 or the third teeth 112 drive the first teeth 121 to rotate while prolonging the service life of the first heat insulation material 2.

[0025] In one or more embodiments, the second heat insulation material 3 is polyimide foam or EPP foam. Referring to Figure 2 Through this arrangement, the heat preservation effect of the outer ring 12 of the drum 1 can be further improved, the heat conduction from the outer ring 12 of the drum 1 to the inner ring 11 of the drum 1 can be reduced, the heating efficiency of the outer ring 12 of the drum 1 can be improved, and the energy loss can be reduced.

[0026] In other possible embodiments, the first heat insulation material 2 and / or the second heat insulation material 3 are configured with elastic metal wires; through this arrangement, the strength of the first heat insulation material 2 or the second heat insulation material 3 can be improved, the service life of the first heat insulation material 2 or the second heat insulation material 3 can be prolonged, and practicality is achieved.

[0027] In one or more embodiments, the first tooth 121 forms a first filling gap 6 between the end away from the outer ring 12 and the inner ring 11, and the first filling gap 6 is filled with the first thermal insulation material 2.

[0028] Referring to Figure 2 , the end of the first tooth 121 is not tightly against the outer side of the inner ring 11, and a first filling gap 6 is formed between the end of the first tooth 121 and the outer side of the inner ring 11. By filling the first filling gap 6 with the first thermal insulation material 2, the stability of the connection between the outer ring 12 and the inner ring 11 of the rotating drum 1 can be ensured, and the possibility of heat conduction from the outer ring 12 of the rotating drum 1 to the inner ring 11 can be further reduced.

[0029] In one or more embodiments, the second tooth 111 and / or the third tooth 112 forms a second filling gap 7 between the end away from the inner ring 11 and the inner side of the outer ring 12, and the second filling gap 7 is filled with the first thermal insulation material 2 or the second thermal insulation material 3.

[0030] Referring to Figure 2 , the end of the second tooth 111 and the third tooth 112 is not tightly against the inner side of the outer ring 12, and a second filling gap 7 is formed between the end of the second tooth 111 and the third tooth 112 and the inner side of the outer ring 12. The second filling gap 7 can be filled with the first thermal insulation material 2 or the second thermal insulation material 3 to ensure the stability of the connection between the outer ring 12 and the inner ring 11 of the rotating drum 1, and the possibility of heat conduction from the outer ring 12 of the rotating drum 1 to the inner ring 11 can be reduced. It has the characteristics of simple structure and stable connection structure, and has practicality.

[0031] In one or more embodiments, the width of the first filling gap 6 and the second filling gap 7 is 1-5mm. Specifically, the width of the first filling gap 6 and the second filling gap 7 can be 1mm, 1.1mm, 1.2mm, 2mm, 5mm, etc., and is not specifically limited, and can be selected according to actual production needs.

[0032] In one or more embodiments, the distance between the first tooth 121 and the second tooth 111 is 1-3mm, and the distance between the first tooth 121 and the third tooth 112 is 1-3mm. Specifically, the distance between the first tooth 121 and the second tooth 111 and the distance between the first tooth 121 and the third tooth 112 are not specifically limited and need to be selected according to actual production needs.

[0033] In one or more embodiments, the first tooth 121, the second tooth 111 and the third tooth 112 are made of stainless steel or titanium alloy. It should be noted that the first tooth 121, the second tooth 111 and the third tooth 112 made of stainless steel or titanium alloy have lower heat conduction performance and higher hardness, which can ensure the synchronous rotation of the inner ring 11 and the outer ring 12 of the rotating drum 1, and reduce the possibility of heat conduction from the outer ring 12 of the rotating drum 1 to the inner ring 11.

[0034] Further, the utility model still provides a kind of rotary drum testing machine, and the rotary drum testing machine has the heat insulation type rotary drum mechanism in any of the above implementation.

[0035] The above implementation is only for illustrating the technical concept and characteristics of the utility model, and its purpose is to enable the person skilled in the art to understand the content of the utility model and implement it, and it cannot limit the protection scope of the utility model, and any equivalent changes or modifications made according to the spirit and essence of the utility model shall be covered within the protection scope of the utility model.

Claims

1. An insulated drum mechanism, characterized by, The drum comprises an inner drum and an outer drum, the outer drum is provided with a plurality of first teeth on the inner side, and the inner drum is provided with a plurality of groups of second teeth and third teeth on the outer side, which are located on both sides of the first teeth, wherein the first thermal insulation material is filled between each first tooth and the adjacent second tooth and third tooth, and the second thermal insulation material is arranged between the second tooth and the third tooth between the adjacent first teeth.

2. The insulated drum mechanism of claim 1, wherein: The first thermal insulation material is elastic rubber or plastic.

3. The insulated drum mechanism of claim 1, wherein: The second thermal insulation material is polyimide foam or EPP foam.

4. The insulated drum mechanism of claim 1, wherein: The first tooth and the inner drum form a first filling gap between the end away from the outer drum, and the first filling gap is filled with the first thermal insulation material.

5. The insulated drum mechanism of claim 4, wherein: The second tooth and / or the third tooth and the inner side of the outer drum form a second filling gap between the end away from the inner drum, and the second filling gap is filled with the first thermal insulation material or the second thermal insulation material.

6. The insulated drum mechanism of claim 5, wherein: The width of the first filling gap and the second filling gap is 1-5mm.

7. The insulated drum mechanism of claim 1, wherein: The distance between the first tooth and the second tooth is 1-3mm, and the distance between the first tooth and the third tooth is 1-3mm.

8. A drum tester characterized in that, The heat insulation drum mechanism comprises the heat insulation drum mechanism according to any one of claims 1-7.

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