41results about How to "Guaranteed contact force" patented technology

The invention discloses an automatic detection system for a ball cage holder, and the system comprises a rack, a sucking disc, a measuring head support, a camera, a camera support, a sliding seat, a sliding rail, a sliding seat cylinder, measuring tools, and a main control machine. During measurement, the sucking disc absorbs the holder, and the sliding seat cylinder pushes the sliding seat to enable the holder to move to a measurement position. The holder is positioned in a movement process, and the two measuring tools achieve one-time precision measurement. Meanwhile, the camera also achieves the precision detection of the holder. Afterwards, the sliding seat cylinder pushes the sliding seat to enable the holder to be separated from the measuring jaws of the two measuring tools. A sucking disc transmission device drives the holder to rotate twice, and the camera achieves the precision detection of the distance between two adjacent holes of the holder. The above process is carried out twice, thereby completing the detection of the holder.

The invention discloses a multi-kinetic energy tactile sensor and a measuring method. The multi-kinetic energy tactile sensor is composed of a hardness detecting unit, a voltage-sensitive varistor sheet, a rubber pipe and a connector. The hardness detection unit is intended for detecting the hardness of a tissue which is in contact with the end of an instrument. The voltage-sensitive varistor sheet is intended for detecting the contact force when the end of the instrument and side wall is in contact with an tissue or blood vessel. Compared with prior art, according to the invention, the multi-kinetic energy tactile sensor is advantaged by capability of detecting tissue hardness, and the contact force of the end of the instrument and the side wall, having simple structure, being beneficial to minimization, being free from contact force upon detecting hardness, and being applied to hardness measurement of biological tissues. The tactile sensor can provide safety in the field of interventional operation, provide key information for disease diagnosis of biological tissues, and can facilitate the development in the field of interventional operation.

The invention relates to a contact device (1) for the detachable connection of a mobile appliance unit (30) to fixed conductor rails (14). Said device comprises a housing (2) consisting of insulating material, and contact units (4) which are housed in chambers (3) of the housing (2). Each contact unit (4) comprises at least one bent contact member (5), a connector part (16) which is likewise bent, and a guiding part (15) which is arranged between the two. An intermediate wall (13) is arranged in the chambers (3) of the housing (2), said wall comprising a window (22) for receiving the guiding part (15). An excessive thickness of the guiding part in relation to the intermediate wall (13), combined with the dimensions of the window (22), enables the contact units (4) to be displaced in the chambers (3) in relation to the housing (2). The contact units (4) can thus be oriented towards fixed conductor rails (14) without influencing the contact force.

The invention provides a terminal with a memory ring. The terminal comprises a terminal body (1) and the memory ring (2); the terminal body (1) comprises a contact section (13); the memory ring (2) is sleeved outside the contact section (13); the memory ring (2) is contacted with the contact section (13); the memory ring (2) is made of memory alloy; and the memory ring (2) can make the contact section (13) contract. The terminal with the memory ring can realize butt joint without insertion force; the contact area and the contact force of the terminal and the matched terminal are ensured through temperature rise during working, so that the contact reliability is improved; and due to the fact that the requirement for the insertion force is omitted, the working is easier, and the working efficiency is improved.

The invention discloses a double-motor driving structure of a double-rotor type compressor and a control method of the double-motor driving structure. The double-motor driving structure comprises twomotors which are correspondingly connected with two compressor rotors through couplers, the two motors are connected with a power supply, and the speed ratio of the two motors is controllable. The control method is divided into three control schemes according to the speed ratio control precision requirement of the compressor rotors, and the control method comprises the two motors directly connected with one power supply, wherein one motor is connected with the power supply through a frequency converter, and the two motors are correspondingly connected with the power supply through the frequency converter; and the frequency converter is provided with a controller, and the controller is used for analyzing the difference value between the speed ratio of two rotation speed sensors and the setspeed ratio; and the set frequency of the frequency converter is adjusted, the rotating speed of the motors connected with the frequency converter is controlled, and the constant speed ratio of the two motors is kept. According to the double-motor driving structure of the double-rotor type compressor and the control method of the double-motor driving structure, the normal operation of the rotor type compressor is ensured, synchronous gears required by a traditional structure is omitted, so that the problem of oil leakage is avoided, and the double-motor driving structure is symmetrical and hasthe effects of reducing noise and the like.

The invention is suitable for the technical field of guardrail plate edge and corner grinding equipment, and provides a guardrail plate end edge and corner grinding device which comprises a grinding mechanism and a driving motor, the grinding mechanism comprises a base, a platform arranged at the top of the base, a steel wire roller rotationally connected to the top of the platform and the driving motor for driving the steel wire roller to rotate, and the steel wire roller is rotationally connected to the top of the platform; the driving motor is fixedly connected to the top of the platform. The clamping tool used for clamping the workpiece comprises a first frame and a second frame, a rotating shaft is arranged at the front end of the first frame, the rotating shaft is rotationally connected to a main frame body, a stress rod is arranged at the other end of the first frame, and a space cam for driving the stress rod to reciprocate up and down is arranged on the main frame body. According to the device, the steel wire roller structure is additionally arranged, edge and corner parts of the guardrail plate are blunted, meanwhile, an automatic rotating and clamping tool is additionally arranged, when the guardrail plate is blunted, rotating and edge changing are automatically conducted, automatic blunt grinding of the edge and corner parts of the guardrail plate is achieved, and the labor cost is reduced.

The invention relates to a pipeline cleaner, in particular to a cleaner for a spiral push type pipeline cleaner to a petroleum pipeline. The cleaner comprises a washing device, a pushing device and apower device; a cover plate is arranged at one end of a shell of the power device, and a blocking plate is arranged at the other end of the cover plate; transmission holes are formed in the center ofthe cover plate and the center of the blocking plate respectively; and a transmission shaft A is arranged in the transmission hole of the cover plate, a pushing device is arranged on the transmissionshaft A, a transmission shaft B is arranged in a transmission hole of the blocking plate, and a washing device is arranged on the transmission shaft B. The cleaner can work in a variable-diameter pipeline through telescoping of a telescopic arm, the contact force between a roller or a brush cutter and the pipe wall in the working process is kept, the problem that because an existing pipeline cleaner is complex in structure and low in cleaning efficiency, and cannot work in the variable-diameter pipeline, the cleaning effect is influenced to a certain degree is solved, and the spiral push typepipeline cleaner is particularly suitable for being used for removing water scale or oil dirt.

The invention discloses a single-cylinder injection device. The device comprises a support, an oil circuit integrated package, an injection piston, an injection rear end cover, an injection retreat plunger, an injection seat, a transmission shaft, a motor and a motor seat, wherein the injection seat and the motor seat are both arranged on the support, the motor is arranged on the motor seat, the motor is connected with the transmission shaft, the injection piston is arranged on the transmission shaft in a sleeving mode and is fixedly connected with the motor seat, the injection seat and the injection rear end cover are both arranged on the injection piston in a sleeving mode, the injection rear end cover is fixedly connected with the injection seat, the injection seat is provided with an extension section, an injection retreat oil cavity is formed in the extension section, one end of the injection retreat plunger is arranged in the injection retreat oil cavity, the other end of the injection retreat plunger is fixedly connected with the motor seat, the injection piston is positioned right above the injection retreat plunger, an injection oil cavity is defined by the injection piston, the injection rear end cover and the injection seat, and the injection oil cavity and the injection retreat oil cavity communicate with the oil circuit integrated package.

The invention relates to an intelligent control method for an automatic grinding operation process of a robot. A force sensor is fixed at the tail end of a robot, a workpiece is clamped at the tail end of the sensor, the workpiece is ground on a belt sander through position control of the robot, and the force sensor is used for detecting contact force and torque between the workpiece and the belt sander. And the upper computer, the sensor and the robot carry out transmission by using an IP/UDP protocol to realize control. According to the grinding operation, high-precision contact force control is achieved through force-position hybrid control, a gravity compensation algorithm and contact force solving are achieved, and constant force control is achieved based on fuzzy PID control. In order to effectively avoid the over-grinding phenomenon of the initial position and the end point of a grinding path and the position where the surface of a workpiece fluctuates greatly, torque control is added into a control strategy to achieve force and torque fusion control. According to the intelligent control strategy, quantitative removal of materials for workpiece grinding operation can be achieved, and in addition, the method is high in universality and suitable for grinding machining of various complex curved surface parts.

The invention generally relates to the technical field of cleaning, in particular to a scraping strip and a cleaning device.The cleaning device is provided with the scraping strip, the scraping strip is provided with a scraping strip body, a limiting part, an elastic part and a connecting part, the scraping strip body is used for being slidably connected with the cleaning device, and when the pressure borne by the scraping strip is increased or the height of a cleaning face is increased in the cleaning process, the scraping strip body is connected with the limiting part. The position of the scraping strip body can be adjusted in a sliding mode according to pressure, large deformation is avoided, the angle of the scraping strip body relative to a cleaning face is guaranteed, the cleaning effect of the scraping strip is guaranteed, the elastic part is connected with the scraping strip body, the connecting part is connected with the elastic part, and the connecting part is used for being connected with a cleaning device. The elastic part is bent and applies internal stress to the scraping strip main body, so that the scraping strip main body extrudes the cleaning surface; when the height of the cleaning face is reduced, the elastic part can drive the scraping strip body to move towards the cleaning face, the position of the scraping strip body is adjusted, the contact force between the scraping strip body and the cleaning face is guaranteed, and the cleaning effect is guaranteed.