9results about How to "Limit radial movement" patented technology

This utility model discloses a ball screw torque testing device, including a chassis and a control box and a test box located on the top of the chassis. The control box contains a drive component, and the test box contains a torque measuring component. A support component is coaxially mounted on one side of the torque measuring component, and a constraint component is mounted on one side of the support component to limit the radial movement of the ball screw nut. The constraint component includes a base and a limit pin fixed to one side of the nut. The two bases are symmetrically fixed to the top of the chassis, and a support column is fixed on the base. An upper limit seat and a lower limit seat are mounted on the support column. An upper limit pin is engaged between the two upper limit seats, and a lower limit pin is engaged between the two lower limit seats. The upper limit pin and the lower limit pin cooperate to form a limiting channel for constraining the limit pin. The limiting channel restricts the circumferential rotation and radial movement of the nut and allows the limit pin to move along the screw axis. This utility model has the characteristic of avoiding errors in torque test data caused by nut movement.

This utility model discloses a ball screw life testing machine for dusty environments, including a test platform with a test chamber on the platform. The test platform has symmetrically arranged fixed seats on both sides inside the test chamber, and fixed shafts are fixedly mounted on the fixed seats. Each fixed shaft on both sides is flange-connected to a supporting side plate, and a supporting base plate is fixed between the two supporting side plates. Several test components are arranged parallel to each other on the supporting base plate. A dust roller is sleeved between the two fixed shafts. A first motor is located on one side of the dust roller on the test platform, and a drive wheel is located at the output end of the first motor. A driven wheel is flange-connected to one side of the dust roller, and a synchronous belt meshes between the drive wheel and the driven wheel. This utility model has the characteristic of satisfying the requirements for ball screw life testing in dusty environments.

The utility model relates to a photovoltaic assembly conductive pressing block and an EL detection device. The photovoltaic module conductive pressing block comprises a first pressing block, a second pressing block and a driving piece, one of the first pressing block and the second pressing block is provided with a convex block, the other one of the first pressing block and the second pressing block is provided with a positioning groove for a welding strip to penetrate through, the positioning groove comprises two limiting walls which are oppositely arranged in the first direction, and the two limiting walls are used for abutting against the welding strip; and the driving piece is used for driving the first pressing block and the second pressing block to be relatively close to each other, so that the convex block is matched with the positioning groove in an inserting manner to press the welding strip. The bump and the two limiting walls abut against the welding strip connected to the battery string, so that the contact area of the conductive pressing block and the welding strip is increased, the conductive pressing block can be in effective contact with the welding strip, and the good contact performance of the conductive pressing block and the welding strip is improved. The two limiting walls abut against the two sides of the welding strip respectively, so that the welding strip can be limited to move in the radial direction, the welding strip is prevented from deviating relative to the battery string, and the influence on the welding quality of the welding strip and the battery string is reduced.

The utility model relates to the technical field of petroleum drilling equipment, concretely relates to a straight turbine drilling tool, the straight turbine drilling tool includes: the casing assembly is provided with the input of installation cavity for going into the drilling fluid, the main shaft subassembly is set up in the installation cavity, the one end of main shaft subassembly is connected with casing assembly through turbine fixed -rotor subassembly close to the input, the other end of main shaft subassembly is used for connecting the drill bit, the casing assembly is connected by a plurality of partial casing in turn, and the conical thread structure is connected between two adjacent partial casings. The scheme adopts the conical thread structure, can effectively disperse load to can directly eliminate the stress concentration phenomenon of straight thread both ends, makes the casing assembly can bear greater axial, radial, vibration load, avoids the problem that the connecting part of two adjacent parts is easy to break. The scheme improves the reliability of drilling tool, prolongs the working life.

This invention discloses a fixing structure for a high-power frameless motor used in humanoid robots, relating to the field of frameless motor technology. It includes: a stator assembly with positioning blocks fixed to both end faces of the stator assembly, two positioning blocks on each end face; and a rotor assembly housed within the stator assembly. This invention employs a structure with a double-disc body, double rotating rings, and a connecting seat. Relying on the positioning blocks and positioning grooves, and the protrusions and grooves forming a double alignment design, combined with a locking mechanism, it can quickly achieve concentric positioning of the stator assembly and rotor assembly, while effectively limiting radial movement of the rotor assembly. Furthermore, the connecting mechanism adopts an adjustable clamping structure design, which can adapt to output shafts of different sizes, ensuring coaxiality between the output shaft and the stator and rotor assemblies. This eliminates the need to replace the motor body or customize an adapter flange, significantly improving the equipment's versatility and adaptability to different operating conditions.

This utility model relates to the field of concrete composite jacking technology, specifically a steel-socket type reinforced concrete composite jacking pipe, including a jacking pipe with a sealing mechanism fitted on it. The sealing mechanism includes a pressure plate and a bushing. The bushing is snapped onto the jacking pipe, and several inserts are fixedly connected in a ring at equal intervals on the bushing. The bushing and inserts are snapped onto the pressure plate. A sleeve is fitted onto the pressure plate, and several inserts are fixedly connected at equal intervals on the sleeve. A water-stop rubber plate and a pressure plate are fitted onto the inserts, and the pressure plate is fixed to the inserts with bolts. Through bushing snap-fit ​​positioning, axial pressing of the water-stop rubber plate, and bolt fixing and locking, a triple seal is formed. The water-stop rubber plate expands radially after being pressed by the pressure plate, completely filling the gap of the jacking pipe interface, which helps to prevent leakage.

The utility model discloses a tail gas aftertreatment assembly. The tail gas after-treatment assembly comprises a shell, a carrier, heat insulation cotton located between the carrier and the shell in the radial direction of the tail gas after-treatment assembly, a first check ring assembly located on one side of the carrier in the axial direction of the tail gas after-treatment assembly, and a second check ring assembly located on the other side of the carrier in the axial direction of the tail gas after-treatment assembly. The first check ring assembly comprises a first check ring and first steel wool located between the first check ring and the carrier in the axial direction of the tail gas aftertreatment assembly. The second check ring assembly comprises a second check ring and second steel wool located between the second check ring and the carrier in the axial direction of the tail gas aftertreatment assembly. Compared with the prior art, the tail gas after-treatment assembly omits a traditional gasket, and cost is saved.

The utility model discloses a corrugated roller with a tooth-shaped wave structure, and belongs to the technical field of corrugated rollers. The corrugated roller comprises the connecting roller, the connecting grooves are formed in the two ends of the connecting roller, the connecting blocks are clamped in the connecting grooves, the connecting roller and the connecting disc can be rapidly disassembled and assembled through clamping of the connecting grooves and the connecting blocks, parts can be conveniently maintained and replaced, and the corrugated roller can be independently replaced when parts of corrugated teeth of the corrugated roller are damaged due to abrasion, collision and the like. Therefore, the maintenance time and cost are greatly reduced, the economical efficiency and sustainability of production are improved, then a moving ring is used for driving a moving block to slide in a sliding groove, through clamping and fixing of a locking column and a positioning groove, the position of the corrugated roller in the circumferential direction of the connecting roller can be adjusted, the production requirements of different wave shapes or tooth shapes are met, the equipment universality is improved, and the production efficiency is improved. And meanwhile, the sliding blocks are matched with the sliding grooves, radial movement of the corrugated roller is limited, stability during rotation is ensured, and deviation or shaking is avoided.