Настройки

Укажите год
-

Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

Подробнее
-

Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

Подробнее

Форма поиска

Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
Ведите корректный номера.
Ведите корректный номера.
Ведите корректный номера.
Ведите корректный номера.
Укажите год
Укажите год

Применить Всего найдено 12. Отображено 12.
03-03-2010 дата публикации

Rolling linear guide friction force dynamic detection device and detection method thereof

Номер: CN0101660957A
Принадлежит:

The invention discloses a rolling linear guide friction force dynamic detection device and detection method thereof. The device comprises a bed body, a servo motor, a worktable, a mother lead screw, arolling linear guide, a slide block, an S type tension sensor, a forward limit switch, a reverse limit switch, a motion control card, a control panel and the like; based on the detection method of the device, firstly parameter is set, loading and running-in are carried out on the linear guide to be detected, then dynamic measurement is carried out on friction force and the measured data is analyzed, and finally the test data and result is saved and printed, qualification decision is given and measurement process is finished. The method of the invention can display distribution situation of dynamic measurement data in real time by a computer, and maximum, minimum and mean value thereof are calculated and compared with design standard of corresponding product and then are judged to be qualified ...

Подробнее
25-05-2011 дата публикации

Ball screw spiral line error on-line detection method and device thereof

Номер: CN0102072705A
Принадлежит:

The invention discloses a ball screw spiral line error on-line detection method. The method comprises the following steps: installing a small-sized ball screw spiral line error detection component which is fixed relative to the a grinding wheel head rack on ball screw processing equipment-a numerically-controlled lead screw grinding machine body, and detecting the spiral line of a ball screw to be detected after a rough grinding process is completed to obtain a composite error comprising a ball screw spiral line error and a numerically-controlled lead screw grinding machine driving chain error; meanwhile, detecting the driving chain error of the numerically-controlled lead screw grinding machine through a circular grating and a long grating installed on the numerically-controlled lead screw grinding machine; and removing the detected driving chain error of the numerically-controlled lead screw grinding machine from the detected composite error to obtain the spiral line error of the ball ...

Подробнее
24-08-2011 дата публикации

Device and method for automatically detecting composite errors of spiral inner raceway of ball nut

Номер: CN0102162717A
Принадлежит:

The invention discloses a method for dynamically detecting composite errors of a spiral inner raceway of a ball nut. The method comprises the following steps: firstly, preparing for sampling; secondly, sampling the position of each point on a normal section curve of the inner raceway of the ball nut to be detected when the ball nut is in a corner position; thirdly, rotating the nut to be detected by 180/n degrees, and then repeating the above steps 2n-1 times; and finally, processing the sampled data, thus obtaining the normal section error, pitch diameter error, lead and journey errors and the like of the nut to be detected. The invention also discloses an automatic detection device. The device is characterized in that a spectral confocal displacement sensor along with a two-dimensional fine-adjustment measuring frame can realize position adjustment of the ball nut to be detected in the axial plane; and meanwhile, the two-dimensional fine-adjustment measuring frame is driven by an axial ...

Подробнее
20-07-2011 дата публикации

Special mechanism for automatically conveying high-temperature saw bit

Номер: CN0101698253B
Принадлежит:

The invention discloses a special mechanism for automatically conveying a high-temperature saw bit. The mechanism comprises a base, an upright post and the like, wherein the upright post is fixed on the base, a rotating crossarm is connected with the upright post and can rotate around the upright post, and a slider fixed on a conveyer belt is driven to move on a sliding guide rail by a sliding driving motor which is fixed on the rotating corssarm through pulley transmission; actions of a movable paw of clamping and loosening a high-temperature sheet are realized through the rotation of a clamping driving motor fixed on the slider; and the rotating driving motor is fixed on the base, an output shaft is provided with a pinion which is meshed with a circular arc rack fixed on the rotating crossarm to drive the rotating crossarm to rotate around the upright post, and a positioning pin on the rotating corssarm slides on the rotating guide rail during rotating so as to realize the function of ...

Подробнее
29-12-2010 дата публикации

Three-gear gear shifting mechanism for small mobile robot

Номер: CN0101929530A
Принадлежит:

The invention discloses a three-gear gear shifting mechanism for a small mobile robot. The device selects a meshing gear pair participating in driving in a gearing by controlling the on and off of a pair of electromagnetic clutches and the position of a sliding synchronizing ring; different combinations can realize three different transmission ratios; gear ratios among three gears are different from high to low, and the reduction ratio of a high-speed gear is basically 1; a cruise gear is in one-level reduction; and a low-speed gear is in three-level reduction. On the premise of satisfying the highest output rotation speed of the high-speed gear, the torque output by the low-speed gear is more than ten times of that output by the high-speed gear; the high-speed gear satisfies the speed requirement of the robot; the low-speed gear satisfies torque requirements; and meanwhile, the cruise-speed gear satisfies the specific working requirement usually used by the robot.

Подробнее
28-04-2010 дата публикации

Special mechanism for automatically conveying high-temperature saw bit

Номер: CN0101698253A
Принадлежит:

The invention discloses a special mechanism for automatically conveying a high-temperature saw bit. The mechanism comprises a base, an upright post and the like, wherein the upright post is fixed on the base, a rotating crossarm is connected with the upright post and can rotate around the upright post, and a slider fixed on a conveyer belt is driven to move on a sliding guide rail by a sliding driving motor which is fixed on the rotating corssarm through pulley transmission; actions of a movable paw of clamping and loosening a high-temperature sheet are realized through the rotation of a clamping driving motor fixed on the slider; and the rotating driving motor is fixed on the base, an output shaft is provided with a pinion which is meshed with a circular arc rack fixed on the rotating crossarm to drive the rotating crossarm to rotate around the upright post, and a positioning pin on the rotating corssarm slides on the rotating guide rail during rotating so as to realize the function of ...

Подробнее
07-03-2012 дата публикации

Three-gear gear shifting mechanism for small mobile robot

Номер: CN0101929530B
Принадлежит:

The invention discloses a three-gear gear shifting mechanism for a small mobile robot. The device selects a meshing gear pair participating in driving in a gearing by controlling the on and off of a pair of electromagnetic clutches and the position of a sliding synchronizing ring; different combinations can realize three different transmission ratios; gear ratios among three gears are different from high to low, and the reduction ratio of a high-speed gear is basically 1; a cruise gear is in one-level reduction; and a low-speed gear is in three-level reduction. On the premise of satisfying the highest output rotation speed of the high-speed gear, the torque output by the low-speed gear is more than ten times of that output by the high-speed gear; the high-speed gear satisfies the speed requirement of the robot; the low-speed gear satisfies torque requirements; and meanwhile, the cruise-speed gear satisfies the specific working requirement usually used by the robot.

Подробнее
11-08-2010 дата публикации

Three-freedom degree grinding wheel dresser based on parallel mechanisms

Номер: CN0101797721A
Принадлежит:

The invention discloses a three-freedom degree grinding wheel dresser based on parallel mechanisms, mainly comprising left driving units, sliding guide rails, left slide blocks, right slide blocks, right driving units, telescopic driving units, telescopic rods, a plurality of connecting rods, transverse frames, rotary permanent seats, diamond dressing wheel driving units and the like, wherein the left driving units and the right driving units are used for respectively driving the left slide blocks and the right slide blocks to move on the sliding guide rails and drive the transverse frames to perform two-dimensional translational motion through the connecting rods; the diamond dressing wheel driving units are used for driving diamond dressing wheels to rotate; the telescopic driving units are used for driving the telescopic rods to make telescopic motions to push the rotary permanent seats to rotate for adjusting cutting-in angles when the formed grinding wheels are dressed; and the integration ...

Подробнее
14-07-2010 дата публикации

Robot for cleaning inner wall of barrel

Номер: CN0101776418A
Принадлежит:

The invention discloses a robot for cleaning the inner wall of a barrel, which comprises a cleaning module and a driving module which realize relative telescopic movement through a thread transmission mechanism. The cleaning module comprises a front outer shell, a sliding plate, a front stepping motor, a front combined driving mechanism and a cleaning brush, wherein the cleaning brush is arrangedon an output shaft of the front combined driving mechanism; the front combined driving mechanism is connected with the sliding plate, in which central inner threads are processed, by the front outer shell; and the front stepping motor is arranged in the front outer shell and is used for driving the front combined driving mechanism. A back combined driving mechanism in the driving module is connected with a motor fixing plate by a back outer shell; a back stepping motor and a mobile stepping motor are arranged in the back outer shell; the back stepping motor is fixed on the back combined driving ...

Подробнее
10-08-2011 дата публикации

Three-freedom degree grinding wheel dresser based on parallel mechanisms

Номер: CN0101797721B
Принадлежит:

The invention discloses a three-freedom degree grinding wheel dresser based on parallel mechanisms, mainly comprising left driving units, sliding guide rails, left slide blocks, right slide blocks, right driving units, telescopic driving units, telescopic rods, a plurality of connecting rods, transverse frames, rotary permanent seats, diamond dressing wheel driving units and the like, wherein theleft driving units and the right driving units are used for respectively driving the left slide blocks and the right slide blocks to move on the sliding guide rails and drive the transverse frames toperform two-dimensional translational motion through the connecting rods; the diamond dressing wheel driving units are used for driving diamond dressing wheels to rotate; the telescopic driving unitsare used for driving the telescopic rods to make telescopic motions to push the rotary permanent seats to rotate for adjusting cutting-in angles when the formed grinding wheels are dressed; and the integration ...

Подробнее
05-05-2010 дата публикации

Method and device for automatic detection of composite errors of ball screw spiral raceway

Номер: CN0101701798A
Принадлежит:

The invention discloses a method for automatic detection of composite errors of a ball screw spiral raceway, which comprises the following steps of: firstly, carrying out sampling preparation; then, sampling the axial position and the radial position of each point on a normal section curve of the screw spiral raceway to be detected by using a grating ruler and an optical screen type displacement sensor; then, processing the sampling data, and acquiring the normal section error and the pitch diameter dimension error of the screw spiral raceway to be detected in the rotating angle position; and after rotating the screw to be detected by 360 degrees/n, repeating the processes for n-1 times to acquire normal section errors and pitch diameter dimension errors of the ball screw spiral raceway to be detected under different rotating angle degrees, and taking the maximum values of the normal section error and the pitch diameter dimension error on each circle of raceway under each rotating angle ...

Подробнее
27-06-2012 дата публикации

Ball screw spiral line error on-line detection method and device thereof

Номер: CN0102072705B
Принадлежит:

The invention discloses a ball screw spiral line error on-line detection method. The method comprises the following steps: installing a small-sized ball screw spiral line error detection component which is fixed relative to the a grinding wheel head rack on ball screw processing equipment-a numerically-controlled lead screw grinding machine body, and detecting the spiral line of a ball screw to be detected after a rough grinding process is completed to obtain a composite error comprising a ball screw spiral line error and a numerically-controlled lead screw grinding machine driving chain error; meanwhile, detecting the driving chain error of the numerically-controlled lead screw grinding machine through a circular grating and a long grating installed on the numerically-controlled lead screw grinding machine; and removing the detected driving chain error of the numerically-controlled lead screw grinding machine from the detected composite error to obtain the spiral line error of the ball ...

Подробнее