Hose abrasion resistance testing device

Abstract

The utility model discloses an abrasion resistance testing device for a hose, which is used for testing the abrasion resistance of an outer coating of the hose, and the hose is provided with a longitudinal axis. The hose abrasion resistance testing device comprises a clamping mechanism used for clamping the hose, a first driving mechanism used for driving the hose to rotate in the circumferential direction of the hose, a grinding head used for making contact with the outer coating and a second driving mechanism used for driving the grinding head to reciprocate in the direction parallel to the longitudinal axis. The clamping mechanism is used for clamping the hose, and the first driving mechanism is used for driving the hose to rotate in the circumferential direction of the hose. The grinding head is used for being in contact with the outer coating layer, and the second driving mechanism is used for driving the grinding head to reciprocate along the direction parallel to the longitudinal axis, so that the reciprocating motion on the 360-degree circumferential surface of the hose is realized, and the abrasion resistance of the whole hose can be reflected more accurately.

Description

[Technical field]

[0001] The utility model relates to a hose wear resistance testing device, in particular to a hose wear resistance testing device comprising a grinding head. [Background technology]

[0002] There are many types of hoses in the industry, such as rubber hoses, silicone hoses, plastic hoses, etc.

[0003] Take rubber hose as an example. Rubber hose is a kind of pipeline product widely used in various fields such as industry, agriculture, military, aviation, railway, etc. When rubber hose is used in various industries to transport various media, in view of different application environments and requirements, rubber hose is given high temperature resistance, low temperature resistance, oil resistance, acid resistance, alkali resistance, weather resistance and other properties as appropriate. The raw materials for the production of rubber hose mainly include rubber, various fillers and additives. Among them, the most important raw material is rubber. Commonly used rubbers include nitrile rubber, chloroprene rubber, styrene butadiene rubber, natural rubber, etc. Each rubber has its special properties and uses. In addition, in order to increase the strength of the rubber hose, a reinforcement layer formed by steel wire or fiber material is often added to the rubber hose, such as a steel wire braided layer or a steel wire winding layer.

[0004] Abrasion resistance is a key performance of hoses. The accuracy of measuring the abrasion resistance of the hose outer layer is related to the final evaluation of the overall performance of the hose. However, there is currently no hose abrasion resistance test device that can accurately reflect the overall abrasion resistance of the hose, resulting in many hoses leaving the factory having unsatisfactory abrasion resistance.

[0005] Therefore, it is hoped to propose a new technical solution to solve the above technical problems. [Utility Model Content]

[0006] The technical problem to be solved by the utility model is to provide a hose wear resistance testing device, which can more accurately measure the wear resistance performance of the hose outer coating.

[0007] In order to solve the above technical problems, the utility model can adopt the following technical solutions: a hose wear resistance testing device, which is used to measure the wear resistance performance of the outer coating of a hose, the hose has a longitudinal axis, and the hose wear resistance testing device includes a clamping mechanism for clamping the hose, a first driving mechanism for driving the hose to rotate along its circumferential direction, a grinding head for contacting the outer coating, and a second driving mechanism for driving the grinding head to reciprocate parallel to the longitudinal axis.

[0008] In a preferred embodiment, the clamping mechanism includes a first hose clamp and a second hose clamp that are arranged opposite to each other.

[0009] In a preferred embodiment, the distance between the first hose clamp and the second hose clamp is adjustable.

[0010] In a preferred embodiment, the first driving mechanism includes a first motor for driving the first hose clamp or the second hose clamp to rotate along the circumferential direction of the hose.

[0011] In a preferred embodiment, the hose abrasion resistance testing device comprises a core shaft for being placed inside the hose.

[0012] In a preferred embodiment, the first hose clamp has a conical first protrusion, the second hose clamp has a conical second protrusion, and the core shaft is a hollow structure and has a first guide surface cooperating with the first protrusion and a second guide surface cooperating with the second protrusion.

[0013] In a preferred embodiment, the second driving mechanism includes a sliding rod extending along the longitudinal axis and a sliding block slidably mounted on the sliding rod, and the sliding block is provided with a grinding head limiting cavity.

[0014] In a preferred embodiment, the second driving mechanism includes a rotating disk, a connecting rod connecting the rotating disk and the sliding block, and a second motor driving the rotating disk to rotate, and the connecting rod is eccentrically connected to the rotating disk.

[0015] In a preferred embodiment, the hose abrasion resistance testing device comprises a pressure block placed above the grinding head.

[0016] In a preferred embodiment, the sliding block is provided with a pressure block limiting cavity located above the grinding head limiting cavity, and the grinding head limiting cavity is communicated with the pressure block limiting cavity.

[0017] Compared with the prior art, the utility model has the following beneficial effects: the utility model is provided with a clamping mechanism for clamping the hose, a first driving mechanism for driving the hose to rotate along its circumferential direction, a grinding head for contacting the outer covering of the hose, and a second driving mechanism for driving the grinding head to reciprocate along a longitudinal axis parallel to the hose to achieve reciprocating motion on the 360° circumferential surface of the hose, which can more accurately reflect the wear resistance of the entire hose.

Brief Description of the Drawings

[0018] Figure 1 It is a schematic diagram of a preferred embodiment of the hose wear resistance testing device of the utility model.

[0019] Figure 2 for Figure 1 Schematic diagram of the hose abrasion test device with a hose installed.

[0020] Figure 3 for Figure 2 Schematic diagram of top view of hose wear test device shown.

[0021] Figure 4 It is a schematic diagram of another preferred embodiment of the hose wear resistance testing device of the utility model. [Specific implementation method]

[0022] The following is an explanation and description of the technical scheme of the embodiment of the utility model in conjunction with the drawings of the embodiment of the utility model, but the following embodiment is only a preferred embodiment of the utility model, not all embodiments. Based on the embodiment of the utility model, other embodiments obtained by those skilled in the art without creative work are all within the protection scope of the utility model.

[0023] Ginseng Figure 1 and Figure 2 The utility model provides a hose wear resistance testing device 100, which is used to measure the wear resistance performance of an outer coating (not shown) of a hose 200.

[0024] Ginseng Figures 1 to 3 The hose 200 has a longitudinal axis O, and the hose wear resistance testing device 100 includes a bracket 101, a clamping mechanism 1 for clamping the hose 200, a first driving mechanism 2 for driving the hose 200 to rotate along its circumferential direction, a grinding head 3 for contacting the outer cover, and a second driving mechanism 4 for driving the grinding head 3 to reciprocate parallel to the longitudinal axis O. The clamping mechanism 1, the first driving mechanism 2, the grinding head 3, and the second driving mechanism 4 are all mounted on the bracket 101. The utility model provides the clamping mechanism 1 for clamping the hose 200, the first driving mechanism 2 for driving the hose 200 to rotate along its circumferential direction, the grinding head 3 for contacting the outer covering layer, and the second driving mechanism 4 for driving the grinding head 3 to reciprocate along the longitudinal axis O to achieve reciprocating motion on the 360° circumferential surface of the hose 200, and then calculates the wear value. In this way, the wear resistance of the entire hose can be more accurately reflected, thereby ensuring that the tested hose can be suitable for different application conditions.

[0025] Continue to participate Figures 1 to 3The clamping mechanism 1 includes a first hose clamp 11 and a second hose clamp 12 that are arranged opposite to each other. In a preferred embodiment, the distance between the first hose clamp 11 and the second hose clamp 12 is adjustable. For example, the position of the first hose clamp 11 and / or the position of the second hose clamp 12 can be adjusted by setting an adjustment mechanism to adjust the distance between the first hose clamp 11 and the second hose clamp 12. In a preferred embodiment, the first hose clamp 11 has a conical first protrusion 111, and the second hose clamp 12 has a conical second protrusion 121. When the hose 200 is installed, the first protrusion 111 and the second protrusion 121 can both extend into the inner side of the hose 200, so that the hose 200 can be better clamped. Further, the first driving mechanism 2 includes a first motor 21 for driving the first hose clamp 11 or the second hose clamp 12 to rotate along the circumferential direction of the hose 200.

[0026] Continue to participate Figures 1 to 3 The second driving mechanism 4 includes a sliding rod 41 extending along the longitudinal axis O, a sliding block 42 slidably sleeved on the sliding rod 41, a rotating disk 43, a connecting rod 44 connecting the rotating disk 43 and the sliding block 42, and a second motor 45 driving the rotating disk 43 to rotate. The sliding rods 41 are preferably two. The sliding block 42 is provided with a grinding head limiting cavity 421, and the grinding head 3 is partially limited in the grinding head limiting cavity 421, so that the sliding block 42 can drive the grinding head 3 to move. The connecting rod 44 and the rotating disk 43 are eccentrically connected. In this embodiment, the sliding block 42 is provided with a connecting hole (not shown), and the rotating disk 43 is provided with an eccentric hole (not shown). The connecting rod 44 is U-shaped, and its two ends are respectively inserted into the connecting hole and the eccentric hole. With this arrangement, the second driving mechanism 4 can drive the sliding block 42 to slide back and forth along the sliding rod 41, thereby driving the grinding head 3 to move back and forth along the longitudinal axis O.

[0027] Continue to participate Figures 1 to 3 , the hose wear resistance testing device 100 also includes a pressure block 5 placed above the grinding head 3. The pressure block 5 is used to ensure effective contact between the grinding head 3 and the hose 200. The sliding block 42 is provided with a pressure block limiting cavity 422 located above the grinding head limiting cavity 421, and the grinding head limiting cavity 421 is communicated with the pressure block limiting cavity 422. Of course, in other embodiments, the pressure block limiting cavity 422 may not be provided, but the pressure block 5 may be completely exposed to the outside, for example, the pressure block 5 is sleeved on the grinding head 3.

[0028] When it is necessary to use the hose wear resistance testing device 100 to test the wear resistance of the outer coating of the hose 200, first, the hose 200 is clamped by the first hose clamp 11 and the second hose clamp 12; then, the pressure block 5 of a specific weight is installed as required; then, the first motor 21 and the second motor 45 are turned on at the same time, and the first drive mechanism 2 drives the hose 200 to rotate in its circumferential direction. At the same time, the second drive mechanism 4 drives the grinding head 3 to reciprocate parallel to the longitudinal axis O; after the test is completed, the hose 200 is removed.

[0029] The hose wear resistance testing device 100 of the utility model can test the wear of the entire outer coating of the hose 200, and the measurement value for thin-walled hoses is more accurate. At the same time, for hoses including a steel wire reinforcement layer, the mold will not be easily damaged, thereby extending the service life of the device.

[0030] Ginseng Figure 4 The utility model also provides a hose wear test device 100' of another preferred embodiment. The shape and structure of the hose wear test device 100' of this embodiment are basically the same as the shape and structure of the hose wear test device 100 of the above embodiment. Only the differences are described below:

[0031] The hose wear resistance testing device 100' includes a core shaft 6' for being placed inside a hose (not shown). The core shaft 6' can prevent the hose from being deformed under the reciprocating action of the grinding head 3'. In order to make the measurement accurate, the core shaft 6' is preferably tightly assembled. The material of the core shaft 6' is preferably made of lightweight material and has a hollow structure so as to support the grinding head 3' while keeping its mass to a minimum. In a preferred embodiment, the core shaft 6' has a first guide surface 61' that cooperates with the first protrusion 111' and a second guide surface 62' that cooperates with the second protrusion 121'. In this way, the hose can be well supported and the fixing and clamping effect of the hose can be enhanced.

[0032] When the hose abrasion resistance testing device 100' is used to test the outer coating abrasion resistance of the hose, first, the core shaft 6' is installed inside the hose; then, the core shaft 6' and the hose are clamped between the first protrusion 111' and the second protrusion 121'; the subsequent steps are the same as the above embodiment.

[0033] It is understandable that the above embodiments of the present invention can be combined with each other to obtain more embodiments without conflict. The various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction.

[0034] In the description of the present utility model, it should be understood that the terms "center", "upper", "lower", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0035] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Claims

1. A hose wear test device for measuring the wear resistance of an outer coating of a hose, wherein the hose has a longitudinal axis, and wherein: The hose wear resistance testing device includes a clamping mechanism for clamping the hose, a first driving mechanism for driving the hose to rotate along its circumferential direction, a grinding head for contacting the outer cover, and a second driving mechanism for driving the grinding head to reciprocate parallel to the longitudinal axis.

2. The hose wear resistance testing device according to claim 1, characterized in that: The clamping mechanism comprises a first hose clamp and a second hose clamp which are arranged opposite to each other.

3. The hose wear resistance testing device according to claim 2, characterized in that: The distance between the first hose clamp and the second hose clamp is adjustable.

4. The hose wear resistance testing device according to claim 2, characterized in that: The first driving mechanism includes a first motor for driving the first hose clamp or the second hose clamp to rotate along the circumferential direction of the hose.

5. The hose wear resistance testing device according to any one of claims 2 to 4, characterized in that: The hose abrasion test device includes a core shaft for being placed inside the hose.

6. The hose wear resistance testing device according to claim 5, characterized in that: The first hose clamp has a conical first protrusion, the second hose clamp has a conical second protrusion, and the core shaft is a hollow structure and has a first guide surface matched with the first protrusion and a second guide surface matched with the second protrusion.

7. The hose wear resistance testing device according to claim 1, characterized in that: The second driving mechanism comprises a sliding rod extending along the longitudinal axis and a sliding block slidably sleeved on the sliding rod, wherein the sliding block is provided with a grinding head limiting cavity.

8. The hose wear resistance testing device according to claim 7, characterized in that: The second driving mechanism includes a rotating disk, a connecting rod connecting the rotating disk and the sliding block, and a second motor driving the rotating disk to rotate, and the connecting rod is eccentrically connected to the rotating disk.

9. The hose wear resistance testing device according to claim 7 or 8, characterized in that: The hose wear resistance testing device comprises a pressure block placed above the grinding head.

10. The hose wear resistance testing device according to claim 9, characterized in that: The sliding block is provided with a pressure block limiting cavity located above the grinding head limiting cavity, and the grinding head limiting cavity is communicated with the pressure block limiting cavity.

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