Wear testing device
A wear testing device includes a plurality of holding portions that hold rubber samples. The rubber samples held by each of the plurality of holding portions are independently and simultaneously pressed against a circumferential surface of a rotation body in rotation by a pressing mechanism so that abrasion debris of each of the rubber samples produced via this contact falls downward.
1. A wear testing device, comprising:
a holding portion that holds a rubber sample;
a rotation body comprising a circumferential surface that comes into contact with the rubber sample;
a handle configured to manually rotationally drive the rotation body such that the rotation body is rotationally driven with manual rotation of the handle; and
a pressing mechanism that applies a pressing force on the rubber sample held by the holding portion toward the circumferential surface;
the wear testing device comprising a plurality of holding portions, and rubber samples held by each of the plurality of holding portions being independently and simultaneously pressed against the circumferential surface of the rotation body in rotation such that abrasion debris produced via contact between each of the rubber samples and the circumferential surface falls downward.
2. The wear testing device according to claim 1 , wherein each of the rubber samples are brought into contact with the circumferential surface at a contact surface of the rubber samples and rotationally driven in a direction opposite that of the rotation body at a speed that differs from a speed of the rotation body.
3. The wear testing device according to claim 1 , further comprising a plurality of receiving boxes that separately receive the abrasion debris of each of the rubber samples.
4. The wear testing device according to claim 1 , further comprising a weighing device that measures a weight of the abrasion debris of each of the rubber samples.
5. The wear testing device according to claim 1 , further comprising a rotational restricting mechanism that restricts movement in one direction of a rotation direction of the rotation body.
6. A wear testing device, comprising:
a holding portion that holds a rubber sample;
a rotation body comprising a circumferential surface that comes into contact with the rubber sample;
a handle configured to manually rotationally drive the rotation body such that the rotation body is rotationally driven with manual rotation of the handle;
a pressing mechanism that applies a pressing force on the rubber sample held by the holding portion toward the circumferential surface;
the holding portion comprising a plurality of holding portions, and the rubber sample held by each of the plurality of holding portions being independently and simultaneously pressed against the circumferential surface of the rotation body in rotation such that abrasion debris produced via contact between the rubber sample held by each of the plurality of holding portions and the circumferential surface falls downward; and
a plurality of receiving boxes, disposed below the position where the rubber sample held by each of the plurality of holding portions and the rotation bodies come into contact, that separately receive the abrasion debris of the rubber sample held by each of the plurality of holding portions, and a weighing device, on which the receiving boxes are placed, that measures a weight of the abrasion debris of the rubber sample held by each of the plurality of holding portions.
7. The wear testing device of claim 6 , wherein the receiving boxes and the weighing device are placed and configured to enable visual observation of the amount of abrasion of the rubber sample held by each of the plurality of holding portions in real time, in order to enable determination of relative wear resistance of the rubber sample held by each of the plurality of holding portions.