46 results about "Distance running" patented technology

The invention discloses a method for testing machine tool hydrostatic guideway surface shape error, and the method comprises the following steps: (1) the number of test sampling points on a hydrostatic guideway guide surface is planned; (2) a laser interferometer is arranged on the surface of a workbench and is used for measuring a pitch angle of the workbench; (3) two displacement sensors are arranged on the workbench and are used for measuring hydrostatic guideway surface variation based on the workbench; (4) according to the distance of each step in a recursion test, to-be-tested parts on the hydrostatic guideway guide surface are equally divided and marked; (5) the measurement starts, one step distance runs once from zero position, step distances connect end to end, and readings of the laser interferometer and the displacement sensor are recorded; and (6) a shape error of the hydrostatic guideway guide surface is obtained through data analyzing and processing. According to the invention, the measurement of machine tool hydrostatic guideway guide surface shape error can be directly completed through cooperation of the laser interferometer and the displacement sensor.

The invention proposes a method and device for generating a movement authorization of a train, an ATP and a ZC. Among them, the method includes: obtaining the first distance between the preceding vehicle and the following vehicle, obtaining the reaction time required for the following vehicle to run the first distance according to the speed information of the following vehicle, and obtaining the distance of the preceding vehicle according to the speed information of the preceding vehicle. The second distance traveled within the reaction time generates a movement authorization for the following vehicle according to the first distance, the second distance and a preset safety margin. In the present invention, when calculating the movement authorization of the rear vehicle, the actual motion state of the vehicle in front is considered, and the vehicle in front is no longer set as a static obstacle, which can make the movement authorization longer, thereby reducing the tracking distance and improving the accuracy of the route. Operational efficiency can increase the departure density during the peak period of operation and reduce the operating pressure during the peak period.

A support system of an engineering machinery and the engineering machinery having the support system. The support system comprises a first support leg (21), a second support leg (22), a third support leg (23), and a fourth support leg (24) arranged on the engineering machinery, and additional support legs (25 and 26) arranged between the third support leg (23) and the fourth support leg (24). The minimum distance running from support points of the third support leg (23) and of the fourth support leg (24) to the circumference of a circle around the center of gravity of the engineering machinery is less than the minimal distance running from the support points of two adjacent support legs among the third support leg (23), the fourth leg (24), and the additional support legs (25 and 26) to the circumference of the circle around the center of gravity of the engineering machinery. The arrangement of the additional support legs (25 and 26) increases the anti-rollover capability and support capability of the entire vehicle, while at the same time, when the lengths of the support legs are reduced, obviates the need to occupy a great area of a site, and maintains a degree of stability identical to existing support systems, thus allowing the engineering machinery having the support system to be applicable in limited spaces, and satisfying construction needs on sites that are narrow and small.

The invention relates to a sports relaxing device, in particular to a relaxing device used after sports long-distance running training. The invention aims at providing the relaxing device used after sports long-distance running training, which consumes little physical power and can effectively relax the parts of the body. The technical scheme is as follows: the relaxing device used after sports long-distance running training comprises a base, a backup plate, a first slide rail, a first slider, a seat cushion, insertion rods, a rotation shaft, a first mounting plate, massage rolling wheels, anarc-shaped backup cushion, a right frame, a push rod and the like, wherein the backup plate is arranged in the middle of the top of the base, the first slide rail is arranged in the middle of the leftside of the backup plate, the first slider is connected to the first slide rail in a sliding manner, and the seat cushion is hinged to the left side of the first slider. For the relaxing device provided by the invention, due to the arrangement of the base and the backup plate, a user sits on the seat cushion and leans against the backup plate with the back, the massage rolling wheels can massagethe back of the user, and thus the body of the user is effectively relaxed.