57results about How to "Change positional relationship" patented technology

The sucker rod rotating rope hanger consists of a casing, a butterfly spring, a bearing, a bearer, a sucker rod seat, a ratchet wheel, a driving member, and other parts. Its operation principle is that during the sucker rod moves upwards, the increased sucker rod weight and the compressed spring make the driving member rotates clockwise while moving downwards; during the sucker rod moves downwards, the decreased sucker rod weight and the extending spring and the single direction rotating ratchet wheel make the driving member rotates counterclockwise idly; so that each motion period of the sucker rod makes the sucker rod under the action of the rope hanger rotate by some angle.

The invention relates to welding equipment, and particularly relates to quick welding equipment for special metal parts for industry. The invention aims to provide the quick welding equipment for the special metal parts for the industry, which has the advantages of high accuracy in welding positions, time saving and labor saving in welding. In order to solve the technical problem, the invention provides the quick welding equipment for the special metal parts for the industry. The quick welding equipment comprises a bottom plate, support plates, guide sleeves, guide rails, a first screw, a first pressing block and a fixed plate, wherein the support plates are installed on the left and right sides of the bottom plate in a welding mode, the guide sleeves are installed on the front sides of the support plates in a welding mode, the guide rails are connected to the interiors of the guide sleeves in a sliding mode, and first threaded holes are formed in the outer sides of the guide rails. The quick welding equipment has the effects of high accuracy in welding positions, time saving and labor saving in welding, and a mode of rotating around the rotary center of a first bearing seat and around a second sliding block after the metal parts are fixed is adopted.

By aiming at the problems that a double-arm mechanical hand working in a complex field or space environment and deep sea is difficult to manually control and is prone to colliding with obstacles, theinvention provides a double-mechanical-arm cooperative obstacle avoidance algorithm, and relates to a double-mechanical-arm cooperative obstacle avoidance method based on neighborhood traversal. Firstly, a model of mechanical arms and obstacles in working space is established by using a Lagrange extremum method and an ellipsoid bounding box method, and a mathematical expression of the model of theobstacles and the double mechanical arms is solved; then, the adjacent working space of the current poses of the mechanical arms is traversed by applying the neighborhood traversal obstacle avoidancemethod, a collision-free path with the shortest movement distance towards a target point is screened out through a collision detection algorithm, and a virtual target point is introduced to avoid theproblem of oscillating motion generated when the mechanical arms fall into a local minimum value; and finally, a mechanical arm end effector moves to the target point along the relatively-optimal path in a collision-free manner. Meanwhile, when the double mechanical arms move, the double mechanical arms are regarded as mutual obstacle models under the ellipsoid bounding box method, and the collision avoidance problem between the double mechanical arms during cooperative work can be solved.

The invention relates to a swing arm structure and a wishbone type independent front suspension and car. The swing arm structure comprises an upper swing arm, an upper swing arm rotating shaft, an upper swing arm mounting portion arranged on an auxiliary frame, a lower swing arm, a front camshaft, a rear camshaft and a lower swing arm mounting portion arranged on an auxiliary frame. On the premise of no effect on the whole performance, the upper swing arm and the lower swing arm are in a nonparallel position relationship to improve the anti-dive ability, thus the handling stability of the whole car is improved. The invention further relates to the wishbone type independent front suspension including the swing arm structure, and relates to the car including the wishbone type independent front suspension as well.

The invention discloses an astromesh deployable reflector vibration detection device and method. The device comprises an astromesh deployable reflector, a vibration driving mechanism and a vibration detection mechanism. The vibration driving mechanism is connected with the astromesh deployable reflector and used for driving the astromesh deployable reflector to vibrate. The vibration detection mechanism comprises two groups of binocular vision systems, a cubic supporting frame, a plurality of acceleration sensors and processing equipment. The binocular vision systems are symmetrically arrangedon the cubic supporting frame and used for detecting mark point areas on the surface of the astromesh deployable reflector; the acceleration sensors are arranged on the astromesh deployable reflectorand uniformly distributed around the astromesh deployable reflector; the processing equipment is connected with the binocular vision systems and the acceleration sensors. The astromesh deployable reflector is detected by vision and the acceleration sensors, and accuracy of detection results is improved by combination of advantages of the two detection modes.

The invention discloses a forestry tree transplanting and planting hole digging device for tropical fruit seedling raising, and relates to the field of planting hole digging equipment. The forestry tree transplanting and planting hole digging device comprises a base, two supporting columns are fixedly installed at the top side of the base, a fixing plate is fixedly installed at the top ends of thetwo supporting columns, and a telescopic hydraulic cylinder is fixedly installed at the bottom side of the fixing plate. According to the forestry tree transplanting and planting hole digging device,through the arrangement of a sliding sleeve, when a moving plate moves downwards to dig holes, due to blocking of the sliding sleeve, the moving plate cannot continue to move downwards to dig the holes, and therefore the planting holes with the fixed depth can be dug out, workers do not need to observe all the time any more, the burden of the workers is relieved, and the hole digging efficiency is improved; and when an annular rotating block is rotated, the position relation between a clamping block and a clamping groove can be changed, so that a hole digging rotating rod can be loosened or fixed, replacement is convenient, the planting holes with different diameters can be dug by the device, and the practicability of the device is improved.

The invention discloses a balance weight device. The balance weight device comprises a balancing weight, a sliding device, a connecting frame, a balance weight output device, a support, a pulley set and a balance weight hook. By means of the lever principle, the stepless balance weight adjustment can be carried out according to the demand for force.

The invention relates to an elevator accessory machining device, in particular to a mechanical machining device which comprises a base frame, a displacement plate assembly, a rack fixing assembly, anadjustable displacement assembly, a height adjusting mechanism, an adjustable cutting mechanism and scrap clearing mechanisms. The displacement plate assembly is fixedly installed on the base frame. The rack fixing assembly is installed on the base frame in a sliding manner. The adjustable displacement assembly is fixedly installed on the rack fixing assembly. The height adjusting mechanism is fixedly installed on the base frame. The adjustable cutting mechanism is installed on the height adjusting mechanism in a sliding manner. The scrap clearing mechanisms are fixedly installed at the two ends of the height adjusting mechanism correspondingly. The mechanical machining device has a function of carrying out adjusting according to different specifications of machined racks, meanwhile, the device also has a function of adjusting the opening diameter of a cutter, production cost increase caused by cutter replacing is avoided, the device further has a scrap clearing function, and the situation that scraps enter the device, and are generated is prevented.

The invention discloses a tunnel boring machine. The tunnel boring machine comprises a front base body, a thrust oil cylinder and a tight supporting shield which are sequentially arranged from front to back; the thrust oil cylinder comprises an upper thrust oil cylinder body and a lower thrust oil cylinder body arranged on the lower side of the upper thrust oil cylinder body; the front base body comprises a lower telescopic shield, a cutter head and a front shield; the front end and the rear end of the thrust oil cylinder are hinged to the front shield and the tight supporting shield correspondingly; the lower telescopic shield comprises a lower telescopic oil cylinder body and a lower shield shell connected to the bottom end of the lower telescopic oil cylinder body; the upper end of the lower telescopic oil cylinder body is connected to the front shield; and under driving of the lower telescopic oil cylinder body, the lower shield shell can move downwards to the rear side of the bottom face of the front shield and can retract to the position above the bottom face of the front shield. In the state that the lower shield shell retracts to the position above the bottom face of the front shield, the front base body has the tendency of swinging relative to the horizontal plane. The front base body can generate the inclination tendency through telescopic movement of the lower telescopic shield, due to the fact that automatic swinging of the front base body can be used, the thrust requirement for the thrust oil cylinder can be lowered, and steering of the small turning radius is achieved.

The invention discloses detection apparatus and method for the deformation and vibration of a polygonal plate based on digital speckles. The deformation detection apparatus comprises a polygonal plate, a driving force-applying mechanism, and a deformation detection mechanism. The polygonal plate is sprayed with random speckles. The driving force-applying mechanism is connected with the polygonal plate and used for driving the polygonal plate to perform linear reciprocating motion. The deformation detection mechanism comprises a binocular vision system for detecting random speckles on the polygonal plate, and a processing device connected with the binocular vision system. The deformation detection apparatus uses the random speckles sprayed on the polygonal plate as mark points, and visuallydetects the deformation of the polygonal plate, so that the advantage of non-contact is realized. The interference of circuit noise does not need to be introduced; the measurement precision is high;and comprehensive, rapid, and high-precision deformation detection of the polygonal plate and similar structures can be realized; in addition, vibration characteristics of the polygonal plate and similar structures can be detected visually.

The invention discloses a concave surface and convex surface detecting method and device of an object with the concave surface and the convex surface being mirror reflection surfaces. The detecting method comprises the steps that 1 a light source which is located at a set irradiation position and can emit divergent light is used for irradiating a surface to be detected, the surface to be detected is the surface of an object to be detected, the object to be detected is located at a set detection position, the surface to be detected is a mirror reflection surface, and meanwhile, a projection surface at a set receiving position is used for receiving reflection light which is reflected onto a projection surface through the surface to be detected; 2 the projection surface is observed, if no image is formed on the projection surface, the object to be detected is unqualified; if an image is formed on the projection surface, the image is compared with a standard image and whether the surface to be detected is a concave surface or a convex surface is judged. The difference between the image formed on the projection surface when the light source irradiates the concave surface and the image formed on the projection surface when the light source irradiates the convex surface is obvious, a detection personnel can directly observe the difference through naked eyes and the detecting cost is low.