Parallel two-degree of freedom orienting device
A pointing device and degree-of-freedom technology, applied in the field of parallel two-degree-of-freedom pointing devices, can solve problems such as no practical application example, unfavorable bearing load, limited theoretical analysis, etc., and achieve high-speed tracking and pointing, low cost, and high stiffness. Effect
Inactive Publication Date: 2013-11-13
BEIHANG UNIV
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Problems solved by technology
At present, although there are relevant studies on such mechanisms in China, they are limited to theoretical analysis and there are no practical application examples; most of the existing pointing devices in China still use the traditional gimbal form, which is not conducive to carrying large loads
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[0026] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.
[0027] The parallel two-degree-of-freedom pointing system of the present invention includes a mounting base 1, a base 2, a transmission mechanism 3 and a driving mechanism 4, such as figure 1 Shown; Among them, the installation base plate 1 is a plate-like structure with holes for cable routing. There are three guide rails 101 arranged radially along the installation base plate 1 evenly distributed on the upper surface of the installation base plate 1, such as figure 2 As shown, the axes of the three guide rails 101 intersect at the center point of the installation base 1 . A base 2 and a driving mechanism 4 are installed on the installation base 1 ; the base 2 is used to connect the transmission mechanism 3 ; the driving mechanism 4 is used to drive the transmission mechanism 3 .
[0028] The base 2 includes a central support 201 of cylind...
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The invention discloses a parallel two-degree of freedom orienting device, comprising a mounting bottom plate, a substrate, a driving mechanism and transmission mechanisms; the substrate is mounted on the mounting bottom plate, and is provided with three groups of the transmission mechanisms along the peripheral direction; in each transmission mechanism, a transmission shaft is in bearing connection with the substrate and the rotary angle and the rotary position of the transmission shaft are read by a coder; each transmission shaft is fixedly connected with a lower connection rod in bearing connection with an upper connection rod; the lower connection and an upper connection rod both have inward radian; a mounting face is arranged on each of the tail ends of the upper connection rods in the three groups of transmission mechanisms; the mounting faces are connected by bearings for mounting task loads; the transmission shafts in the three groups of transmission mechanisms are driven by the driving mechanism to realize rotating and drive the lower connection rods to rotate; and the lower connection rods are rotated to drive the upper connection rods to rotate, so the task loads can perform a two-degree of freedom spherical rotating motion along with the upper connection rods. The parallel two-degree of freedom can realize the two-degree of freedom rotation of the transmission mechanisms around a fixing point O, and has stronger bearing capacity.
Description
technical field [0001] The invention relates to a precision instrument device, which belongs to the field of robots, equipment and machinery manufacturing, and specifically relates to a parallel two-degree-of-freedom pointing device. Background technique [0002] Pointing devices are often used in various fields such as video steering monitoring, radar steering transmission and reception, astronomical telescope attitude adjustment, and simulation steering platforms. The conventional pointing device structure adopts the traditional series gimbal form, which has a slightly lower load capacity, but the structure is simple and the manufacturing cost is low. In contrast, pointing devices with a parallel structure are more and more widely used because of their high rigidity, high precision, strong bearing capacity, and small moment of inertia. [0003] With the development of technology and the improvement of technology, the load-bearing requirements of pointing devices are getti...
Claims
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IPC IPC(8): B25J9/00
Inventor 于靖军吴钪宗光华
Owner BEIHANG UNIV