8 results about "Turn angle" patented technology

Ring wrench structure, comprehensive a main body (10) forming a first receiving section (11) at one end, the main body (10) having a handle section (12) connected to the first receiving section (11), wherein a receiving recess (13) is formed inside the first receiving section (11), the receiving recess being annular and having twelve teeth, the receiving recess (13) forming a first corner (14) being one of the corners between the teeth of the receiving recess (13), and wherein a second receiving section (15) is provided at the other end of the handle section (12). characterized by the fact that Viewed in two dimensions, a first circle center (21) is defined in the center of the receiving recess (13), through which a first line (22) runs, which can also serve as a horizontal line, wherein a second line (23) also runs through the first circle center (21), connecting the first circle center (21) with the first corner (14), wherein a first angle (24) is formed between the second line (23) and the first line (22), wherein a third line (25) is defined at the handle section (12), which runs parallel to the first line (22) and extends in the same direction as the handle section (12), wherein the third line (25) is the center line of the handle section (12), that is, starting from the third line (25) two fourth lines (26) are defined, which run perpendicular to the third line (25) and are symmetrical to the third line (25),where a first distance (27) is defined between the third line (25) and the first line (22); , wherein the value of the first angle (24) is less than 30 degrees and greater than 0 degrees, or the value of the first angle (24) is less than 20 degrees and greater than 2.5 degrees, or the value of the first angle (24) is less than 15 degrees and greater than 5 degrees, or the value of the first angle (24) is 5 degrees, 7.5 degrees, 10 degrees, 12.5 degrees or 15 degrees, wherein the value of the first distance (27) is less than 8 mm and greater than 1 mm, or the value of the first distance (27) is less than 6 mm and greater than 2 mm, or the value of the first distance (27) is less than 5 mm and greater than 3 mm, or the value of the first distance (27) is 4 mm;wherein, when the first receiving section (11) is attached to a screw element (30) for rotation, this screw element (30) has a second circle center (31), wherein this second circle center (31) substantially coincides with the first circle center (21), wherein a fifth line (32) runs horizontally through the second circle center (31), wherein the screw element (30) has a second corner (34) which is one of the corners of the screw element (30), wherein a connecting line (33) is defined between the second circle center (31) and the second corner (34), wherein in the first state the second corner (34) and the second circle center (31) are on the same horizontal line, wherein the connecting line (33) and the fifth line (32) coincide; ; wherein a first obstacle (41) and a second obstacle (42) are present, wherein if the second receiving section (15) can only pivot within the narrow space between the first obstacle (41) and the second obstacle (42), then this narrow space between the first obstacle (41) and the second obstacle (42) corresponds to the spatial state during the working process within a limited pivoting space of the main body (10); in the first state the second receiving section (15) is located near the first obstacle (41) after the first receiving section (11) has been attached to the screw element (30), wherein a horizontal line (50) passes through the first circle center (21), the horizontal line (50) coinciding with the fifth line (32), and a first swivel angle (51) being defined between the horizontal line (50) and the first line (22);wherein the screw element (30) is rotated by pivoting the main body (10), wherein, when the screw element (30) has been rotated about the second circle center point (31) into the second state, there is no further pivot space between the second receiving section (15) and the second obstacle (42), i.e., that the main body (10) cannot rotate the screw element (30) any further, wherein a second pivot angle (52) is defined between the horizontal line (50) and the first line (22), wherein the main body (10) is pivoted about the second circle center point (31) by the first pivot angle (51) and the second pivot angle (52), wherein a first rotation angle (35) is defined between the connecting line (33) and the fifth line (32), wherein the value of the first rotation angle (35) corresponds to the sum of the values ​​of the first pivot angle (51) and the second pivot angle (52); ; wherein, when the screw element (30) cannot be rotated further, the main body (10) is turned, wherein a third pivot angle (53) is defined between the first line (22) and the horizontal line (50), and the first rotation angle (35) is defined between the fifth line (32) and the connecting line (33), which represents the third state, wherein a fourth pivot angle (54) is defined between the horizontal line (50) and the first line (22), wherein the angle between the fifth line (32) and the connecting line (33) increases from the original first rotation angle (35) by a second rotation angle (36), wherein the second rotation angle (36) corresponds to the sum of the third pivot angle (53) and the fourth pivot angle (54), wherein, when the main body (10) is moved between the first obstacle (41) and the second obstacle (42) after turning, the handle section (12) has a pivot space,which corresponds to the sum of the third swivel angle (53) and the fourth swivel angle (54); and , wherein from the first state to the fourth state the screw element (30) is already rotated by a swivel range which corresponds to the sum of the first rotation angle (35) and the second rotation angle (36), wherein the sum of the values ​​of the first rotation angle (35) and the second rotation angle (36) is greater than 30 degrees, and wherein the first receiving section (11) can be turned again to continuously rotate the screw element (30).

The invention discloses a method and system for expanding the effective measurement range of a high-precision inclinometer, and the method comprises the steps: S1, installing the inclinometer on a Y-axis rotary table of a double-axis mechanical rotary table, and fixing a mechanical rotary table base on a target surface; s2, controlling the double-shaft mechanical turntable to adjust the pose of the inclinometer, so that the initial inclination angle data of the inclinometer is within the measuring range of the inclinometer; s3, biaxial inclination angle data of the inclinometer and biaxial rotation angle data, measured by the encoder, of the mechanical rotary table are collected in real time; s4, fusing the inclination angle data and the rotation angle data based on a coordinate transformation model, and calculating an actual inclination angle of the target surface relative to the horizontal plane; and S5, if the data of the clinometer exceed the preset threshold value, controlling the mechanical turntable to reversely adjust the pose, and repeating the steps S3 to S4 until dynamic compensation is completed. The precision short plate of the mechanical rotary table is stripped from the system, so that the whole system reaches the arc second level measurement precision, the large measurement range of + / -dozens of degrees allowed by the physical structure of the mechanical rotary table is obtained, and the performance which cannot be achieved by a traditional single sensor is achieved.

The application provides a multi-directional straightening machine for a main limb of an extra-high voltage iron tower, and relates to the technical field of metal profile correction. The machine comprises a work frame, a corrector for straightening the edge wings of the main limb, a straightener for straightening the corner of the main limb, and a self-adaptive supporting and conveying component for controlling the feeding of the main limb. The corrector can synchronously apply vertical pressing force and horizontal pulling force to the profile, which can straighten small-angle bent edge wings and avoid the overlapping or breaking of large-angle bent edge wings due to simple extrusion, effectively improving the efficiency and quality of straightening and reducing the rejection rate of angle steel. The straightener comprises straightening blocks and straightening plates, and the straightening blocks are equipped with detachable blocks, covering two structures of circular arc shape and right angle shape in multiple sizes, which can meet the straightening needs of different forms of main limb corners. The machine aims to solve the technical problems of deformation due to self-weight sagging during the straightening of the main limb of the extra-high voltage iron tower, difficulty in adapting to angle steel of multiple sizes, and easy secondary damage, and reduces manual intervention during the straightening process.

The invention provides a multidirectional straightening machine for a main limb of an extra-high voltage iron tower, and relates to the technical field of metal profile straightening. Comprising a working frame, a straightener for straightening side wings of a main limb, a straightener for straightening corners of the main limb and a self-adaptive bearing and conveying component for controlling feeding of the main limb, the straightener can synchronously apply a vertical pressing force and a horizontal pulling force to a profile, so that not only can small-angle bent side wings be straightened, but also the situation that large-angle bent side wings are overlapped or broken due to pure extrusion can be avoided, the straightening efficiency and quality of the straightener are effectively improved, and the rejection rate of angle steel is reduced; the straightener comprises a straightening block and a straightening plate, the straightening block is provided with a detachable block and covers arc-shaped and right-angle-shaped structures of multiple sizes, and the straightening requirements of main limb corners of different forms can be met; the technical problems that when the main limb of the extra-high voltage iron tower is straightened, the main limb droops and deforms due to self weight, is difficult to adapt to angle steel of multiple sizes and is prone to causing secondary damage are solved, and manual intervention in the straightening process is reduced.

The present invention discloses an optimization method for lidar odometry positioning under the constraint of OSM road network. The method includes Step 1: obtaining the vehicle pose using lidar odometry and taking this pose as the motion equation; Step 2: extracting inflection points using the heading angle change rate, the straight-curve ratio of the trajectory, and the turning angle change constraint; Step 3: simplifying the nodes of the OSM map and matching the extracted inflection points with the simplified OSM map to obtain a matching set; Step 4: predicting the particle motion using the particle motion equation and updating the particle weights at the inflection points using a weight model; Step 5: resampling the particles and selecting the mean of the particle set as the pose output after trajectory correction to obtain the optimized positioning. The present invention overcomes the disadvantages of high cost and high memory of traditional positioning methods, solves the problem of error drift of lidar odometry, and has good positioning accuracy and real-time performance.

The application relates to a kind of angular stroke test plate for regulating valve and its calculation method, including arc body, the straight line segment center of arc body is provided with right triangle notch, including the following steps: the concentric fixation of arc body is on the rotating shaft of regulating valve and the rotation of arc body 90 degrees, further draw ellipse curve;According to the size of arc length L to calculate the angle beta;Further get a monomial cubic equation: Ax 3 +Bx 2 +Cx+D=0;Adopting the formula method of gold to solve the above monomial cubic equation;The application can accurately simulate the angular stroke trajectory of regulating valve when rotating by means of arc body, and can accurately calculate the value of rotation angle beta according to arc length L, and can accurately grasp the change process of rotation angle beta, thereby greatly facilitating the performance improvement of regulating valve.

The application discloses a method for solving a target roll angle based on linear vector space reconstruction, which comprises the following steps: selecting a characteristic linear vector under a target body coordinate system to form a characteristic plane representing the change of the roll angle before and after rolling, reconstructing the selected linear vector in space, and then reconstructing the characteristic plane; and solving a rotation matrix before rolling by using the roll-off characteristic of a central axis vector, then solving the state of the characteristic plane before rolling, and directly representing the normal line angle between the characteristic planes before and after rolling as the change of the roll angle. The roll angle is converted into a dihedral angle between the planes before and after rolling, the roll information is completely decoupled from the pitch and yaw information, and the method is suitable for non-contact roll angle transient measurement under a dynamic visual angle.