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.

A ring block friction and wear testing machine with wear gap adjustment solves the problem that the existing friction and wear machines cannot realize the loading and gap adjustment of the test ring and the test block on the same testing machine. It includes a machine base, a power and transmission mechanism fixed on the machine base, a material box provided with a loading mechanism and a testing mechanism, and a measurement control circuit. The technical points are: the loading mechanism includes an adjustment rod, a handle, a fine-tuning dial, a fixed seat, a guide seat with a fixture and a guide rail, the stud section of the adjustment rod matches the threaded hole of the material box to form a spiral pair, and the adjustment rod A handle is fixed on the top, and the handle can be rotated to achieve quantitative vertical loading and precise adjustment of the gap between the test block and the test ring, and it is fixed by a fixing device. It has reasonable design, simple structure compared with existing similar products, convenient loading and unloading of test ring and rubber test block, stable operation, easy gap adjustment operation, accurate spacing, and further improves the reliability of test results consistent with actual working conditions.

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.

The invention discloses a double-layer heat-insulation box body structure for a low-temperature friction-wear tester. The double-layer heat-insulation box body structure is characterized by comprising an inner-layer heat-insulation box body, an endoscope and illumination system, an outer-layer heat-insulation box body, an outer-layer heat-insulation box door, an illumination lamp, temperature sensors, a control display module and humidity detection sensors, wherein the endoscope and illumination system is arranged in the inner-layer heat-insulation box body; the inner-layer heat-insulation box body and the illumination lamp are arranged in the outer-layer heat-insulation box door; the control display module is arranged at an upper part outside the outer-layer heat-insulation box door, and used for acquiring the signals of the temperature sensors, the humidity detection sensors and the endoscope, and displaying a temperature, a humidity and endoscope images. The double-layer heat-insulation box body is provided for the low-temperature friction-wear tester for a grinding tool for an ice pin, the problems of the temperature recovery in the box body and the thawing of the ice pin, which are brought during clamping and trimming for the ice pin, are solved, and a working environment fully filled with a protective gas can be provided.

The invention discloses a cement floor coating prepared from the following raw materials in parts by weight: 100 parts of acrylic resin, 1-10 parts of methyl methacrylate, 45-55 parts of glass beads, 3-5 parts of methacrylic acid, 1-5 parts of soybean lecithin, 10-20 parts of isobutyl methacrylate, 5-15 parts of deionized water, 15-25 parts of hydroxyethyl acrylate, 20-30 parts of pigment, 10-30 parts of ethyl methacrylate, 20-40 parts of cobalt caprylate, 15-25 parts of ethyl acrylate, 25-35 parts of plasticizer, 15-35 parts of acetic ester, 30-40 parts of rosin and 35-45 parts of methylbenzene. The cement floor coating is good in wear resistance (up to 0.002-0.005g / cm<2> after being tested 1000 times by using a reciprocating tribometer), high in bonding strength (40-50MPa), free of bubbling and powder removing after being soaked into water for 15-20 days, free of bubbling and wrinkling after being soaked into 5% HCl for 2-3 days and free of falling off and bubbling in alkaline-resistant saturated calcium hydroxide for 5-7d, so that the cement floor coating can be widely produced and used for continuously replacing the traditional material.

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 provides a digital display type drill rod and drill core tribometer. A drill core is fixed at the lower end of a pressurizing and holding device, the pressurizing and holding device is arranged on a support, and the upper end of the pressurizing and holding device is provided with a pressurizing cake. A simulation drill rod is connected with a shaft of a motor and rotates along withthe shaft, the drill core is pressed on the simulation drill rod, and a guide rod for transmitting the friction force between the drill core and the rotating simulation drill rod is connected with a sensor after penetrating through the pressurizing cake. The digital display type drill rod and the drill core tribometer has convenient detection, small and exquisite structure and stable and accuratereading.

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.