32 results about "Tribometer" patented technology

A testbench device for the analysis and / or optimization of tribological properties in a piston ring / cylinder runway system, includes a cylinder segment-holding device for holding a cylinder runway segment as a testpiece, and a piston ring-holding device holding at least one piston ring element and capable of bringing the at least one piston ring element into bearing contact with the cylinder runway segment. An actuation device actuates the cylinder runway segment and / or the piston ring element such that relative displacement with respect to one another takes place in at least one defined direction of space, in particular in the form of an oscillating movement. The piston ring-holding device has a piston having a ring-shaped outer contour and with at least one circumferentially continuous piston ring groove, in which a piston ring is held as a piston ring element.

Intrinsically calibrating friction mensuration device has a drive unit with controllable motive member, configured to receive a controllable propulsion force, and to apply tractive force to a test piece on a surface. A force engine couples to the motive member, and applies the controllable propulsion force. The device includes a controller imposing a propulsion control signal actuating the force engine to produce the propulsion force. A force sensor is between the drive unit and the test piece, producing a force signal responsive to a sensed force between the drive unit and the test piece. The drive unit can self-propelled or stationary. A method includes applying an increasing tractive force to a test piece at rest; measuring the tractive force; identifying the maximum tractive force applied at incipient motion; identifying the transition between the resting test piece and incipient motion; determining the SCOF; continue motion and determine the DCOF.

Intrinsically calibrating friction mensuration device has a drive unit with controllable motive member, configured to receive a controllable propulsion force, and to apply tractive force to a test piece on a surface. A force engine couples to the motive member, and applies the controllable propulsion force. The device includes a controller imposing a propulsion control signal actuating the force engine to produce the propulsion force. A force sensor is between the drive unit and the test piece, producing a force signal responsive to a sensed force between the drive unit and the test piece. The drive unit can self-propelled or stationary. A method includes applying an increasing tractive force to a test piece at rest; measuring the tractive force; identifying the maximum tractive force applied at incipient motion; identifying the transition between the resting test piece and incipient motion; determining the SCOF; continue motion and determine the DCOF.

The coating friction and wear testing machine for shaft parts of the present invention includes a mounting bracket, a motor, a lever load testing device, an information collection and processing module, a computer and a power switch, wherein the lever load testing device includes a loading lever, a friction contact piece, Leveling unit, loading unit and friction sensing unit. After the sample is installed on the output shaft of the motor, the left and right positions of the loading lever can be adjusted so that the friction contact part is close to the test position of the sample, and then the horizontal balance of the loading lever can be adjusted by using the leveling unit, and by adjusting The upper and lower positions of the friction contact make it just in contact with the sample, then adjust the friction sensing unit so that it is close to the friction contact and close to the loading lever, then apply the load with the loading unit and make the load vertical through the friction contact Act on the sample; after that, the friction data can be collected and analyzed by using the friction sensing unit, information collection and processing module and computer.

The invention provides a magnetically-shielded combined type friction-abrasion testing machine, which comprises a rack, a rotating mechanism, a horizontal adjusting platform, a reciprocating mechanism and a friction loading mechanism, wherein the rack consists of a bottom-layer platform, a middle-layer platform and a top-layer platform, and the middle-layer platform and the top-layer platform are positioned on the bottom-layer platform; the rotating mechanism is arranged on the middle-layer platform, the upper end of the rotating mechanism is connected with a rotating disc for placing samples, and a first magnetic shielding case is arranged at the outer peripheral side of the rotating disc; the horizontal adjusting platform is arranged on the middle-layer platform and arranged on one side of the rotating mechanism along a second direction, and the horizontal adjusting platform is provided with a turnplate seat capable of moving along the second direction; the reciprocating mechanism comprises a cylinder and a linear guide rail, the cylinder is arranged on the top-layer platform, a sample fixing seat is arranged on a slider of the linear guide rail, the linear guide rail and the horizontal adjusting platform are adjacent along a first direction, a second magnetic shielding case is arranged on the outer peripheral side of the linear guide rail, an extension rod of the cylinder is arranged on the second magnetic shielding case in a penetration manner and connected with the sample fixing seat and can drive the sample fixing seat to do reciprocating motion along the second direction; the friction loading mechanism consists of a support frame, a lifting platform and a loading assembly.

A multifunctional friction and wear testing machine, including a horizontal lead screw, an upper friction pair connection seat, a rotating main shaft, an incomplete gear, a rectangular guide rail, a frame, a pin or ball upper friction pair assembly, a pin or ball upper friction pair, a reciprocating lower Features By replacing three different matching friction pair components on the same upper friction pair connection seat and rotating spindle, the upper friction pair on the pin or ball and the reciprocating lower friction pair, the friction pair on the end face and the lower friction pair on the end face, and the upper and lower friction pairs on the pin or ball are realized. Determination of the tribological parameters between the friction pair and the friction pair under the rotating disk. The testing machine can carry out tribological tests of three different types of friction pairs. Compared with the existing friction and wear testing machines, it has complete functions, simple structure and low cost.

The invention relates to a test piece fixture with self-adaptive contact of friction surface, which belongs to the field of test piece fixture design of tribological friction and wear testing machine. The device mainly includes a clamping piece, a radial joint ball bearing and a cup-type fixing piece; the ball bearing includes an inner ring and an outer ring. The fixed screw is connected to prevent the ball bearing from loosening; the cup-type fixing part and the clamping part are connected by three studs evenly distributed along the circumferential direction; both the ring test piece and the pin test piece can be installed on the clamping part. The specimen fixture has reasonable design, compact structure, and good clamping effect. Through the cooperation of joint ball bearings, positioning bolts and pins, the friction surfaces of the upper specimen and the lower specimen can be ensured to be in adaptive contact, and the force is uniform. Instead of the single-pin mode, it makes up for the limitations of the single-pin mode, and can realize various friction and wear tests of ring-disc, ring-ring, pin-disk, and pin-ring without changing the fixture.

The invention relates to a method and a device for determining tribological measurements of a sample (7, 8) using a rheometer (1), wherein the measuring part of the rheometer (1) is replaced by a sample (7, 8), and the sample The surfaces of (7,8) are moved relative to each other in frictional contact. According to the invention, it is arranged that: all parts of the rheometer (1) which hold the sample (7, 8) in a frictional connection and frictional contact or form a force path or cycle of the rheometer, including the sample (7, 8) The spring units (3) pressed against each other are considered to be an oscillating circuit (30), the oscillation properties of the spring units (3) are considered to be related to the oscillation properties of said oscillating circuit (30), and the spring units (3 ) are tuned in such a way that resonant oscillations or influences arising by varying the different measurement conditions expected for the corresponding measurement are taken into account.