529results about How to "Achieve tension" patented technology

The invention provides a chain saw comprising a shell body, a saw chain, a sprocket, a guide plate which is matched with the sprocket and is used for supporting and guiding the saw chain, a cover plate which is matched with the shell body to clamp the guide plate so as to prevent the guide plate from shaking in a vertical direction and a sprocket tensioning mechanism; the sprocket tensioning mechanism is integrally arranged in the shell body movably, so that the position states of the saw chain, the guide plate, a tensioning nut, the sprocket and other parts can be observed in a whole assembly process, the positioning is accurate, and the operation is simple and quick. The sprocket tensioning mechanism comprises the tensioning nut, a transmission part and a tensioning hand wheel; and an angle between the input shaft and the output shaft of the transmission part is more than 0 degree and less than 180 degrees. The tensioning hand wheel is connected with the transmission part, the transmission part drives the motion of the tensioning nut which is fixedly arranged on the guide plate so as to adjust a distance between the guide plate and the sprocket and tension the saw chain, and the comfort of operation is improved.

The invention discloses a rope-driven multi-degree-of-freedom series manipulator and a driving method thereof, and belongs to the field of manipulators. The rope-driven manipulator comprises a base, a waist joint unit, a waist platform, a large arm unit, a small arm unit, a tail end platform unit and the like. One ends of steel wire ropes are fixed to driven wheels at joints, the other ends of the steel wire ropes are fixed to a driving unit winch at the waist platform, so that the driving force is transferred from the winch at the waist platform to the driven wheels at the joints at the rear end by means of the ropes and accordingly drives the joint units to conduct rotation movement around joint shafts correspondingly. The joint driving ropes are guided by guide pulleys and bypass the joint shafts at the front end sequentially, by arranging the specified diameters of shaft guide wheels, a driving method is built, thus any joint at the front end of the manipulator rotates while the posture of the tail end of the manipulator remains unchanged relative to the world coordinate system. The buffer effect of making contact of the manipulator with the environment is increased through the flexibility of the ropes, and the rope-driven multi-degree-of-freedom series manipulator is especially suitable for occasions with the high requirements for the interaction safety of the manipulator, people and the environment.

The invention relates to a spindle motor, comprising an electric motor having a rotor connected to a threaded spindle, the thread of which is engaged with a thread of a spindle nut connected to a piston rod, wherein the spindle nut, along with the piston rod, is axially guided in a housing part, a guide part is connected to the spindle nut and piston rod for axially guiding the same, and wherein the threaded spindle is mounted by means of a bearing in the housing part or in a second housing part connected to the first housing part, a cooling channel being configured in the housing part, in particular a cooling channel which extends in the circumferential direction.

The invention provides a cutting wire tensity and temperature measurement and control device for an EPS (Expanded Poly Styrol) slab cutting machine, belonging to the field of machining. The cutting wire tensity and temperature measurement and control device is used in non-manual installation regulation and temperature control of cutting wires for solving the problems of large installation error and human injury due to broken wires. The cutting wire tensity and temperature measurement and control device for the EPS slab cutting machine is composed of a cutting wire set tension automatic maintaining and adjusting mechanical traction mechanism, a cutting wire tension sensor, a cutting wire temperature sensor, a control traction mechanism and a cutting wire working temperature control circuit. The cutting wire set tension automatic maintaining and adjusting mechanical traction mechanism is composed of a step motor, a supporting plate, a lead screw, a movable disk, an optical axis and a wire hanging plate; and the tension sensor comprises a step motor, a lead screw, a movable disk, an optical axis, a pressure sensor, an F contactor and a PT100 temperature sensor installed at one side of a cutting wire of the traction mechanism. The invention has the advantages of automatically maintaining the cutting wire tension and the cutting wire working temperature and adjusting errors to maintain the cutting wire at the optimal working state, improving the cutting quality of EPS slabs and eliminating potential safety hazards caused by manual installation.

The invention relates to a high-quality textile dyeing mechanism, which includes a frame, a transmission roller rotatably mounted on the frame, a spraying and dyeing assembly fixedly arranged above the transmission roller, and a rotatively mounted frame located on both sides of the transmission roller The cloth guide roller and the driving assembly that drives the transmission roller to carry out gray cloth transmission also include a smear assembly that is located on one side of the transmission roller and moves along its outer circumference. The first connecting rod connected to the driving assembly, the second connecting rod connected to the other end of the first connecting rod in rotation, the third connecting rod connected to the second connecting rod at one end and installed on the second connecting rod The smearing roller at the other end of the three connecting rods; the greige cloth is pre-dyed, dyed and polished, and then reciprocated on the conveying roller by the smearing roller to achieve wrinkle removal, color fixation and uniform dyeing of the greige cloth. The technical problems of uneven dyeing and easy fading in the background technology.

The invention relates to an adaptive butt-joint locking and releasing mechanical structure of a combinable movable robot, comprising a butt junction and a butt-joint seat, wherein the butt junction is provided with a contact with a flange; and the butt-joint seat is provided with a cone-bowl-shaped butt-joint accommodation hole and two straining hooks which are opened and closed relative to each other. The contact of the butt junction can be inserted into the butt-joint seat by the guidance of the butt-joint accommodation hole of the butt-joint seat and fastened by the straining hooks, so as to realize the butt joint. The mechanical structure related by the invention can be used for improving the butt-joint feasibility of the combinable movable robot under unstructured environments and enhancing the adaptive butt-joint ability of the butt-joint gesture change between two movable robots, and has the advantages of convenience for locking and releasing, and reliability.

The invention provides a self-traveling mini underground pipeline tunneling machine. According to the invention, the radial positions and the cutting angles of cutter blades in a cutter head mechanism are adjustable, and the cutter blades are spirally arranged, so as to reduce the size of the cutting edge of each cutter blade and reduce the requirement for power; and the individual groups of adjustable cutter holders and fixed cutter holders are subjected to the same stresses, so as to keep the overall stress in balance, provide an axial advancing force during cutting and benefit the axial advancement of the cutter head. Besides, according to the characteristics of different soil, the cutting angles of the cutter blades are adjusted to reduce the cutting resistance, reduce the wear of thecutter, ensure the mobility of the cut soil body and increase the service life of the cutter head. A chain tension mechanism is arranged inside a traveling mechanism to tension chains. Parallel frames are moved in parallel by using a regulating mechanism, so as to achieve the function of automatically controlling the distance between two parallel frames according to the degree of looseness of thesoil and ensure the chains to be in contact with the soil all the time. Accessory chains are adopted to ensure the chains to be in effective contact with the soil during the motion, so as to produce enough advancing force.

The invention provides a floor-mopping cloth tensioning mechanism and a floor mopping machine. The floor-mopping cloth tensioning mechanism is applied to the floor mopping machine. The floor mopping machine includes floor mopping cloth and a machine body, the floor-mopping cloth tensioning mechanism is arranged on the machine body, and the floor-mopping cloth tensioning mechanism and the machine body are both sleeved with the floor mopping cloth; the floor-mopping cloth tensioning mechanism includes a fixing frame, a tensioning wheel and an elastic part, wherein the fixing frame is arranged on the machine body and can do reciprocating motion, the tensioning wheel is mounted on the fixing frame and can rotate around the fixing frame, and the elastic part is arranged on the machine body and faces one side of the fixing frame; under a working condition, the fixing frame compresses the elastic part, the floor mopping cloth is subjected to counter-acting force of the elastic part on the fixing frame and keeps tensioned. By the adoption of the floor-mopping cloth tensioning mechanism, the floor mopping cloth can have enough tensioning force, it is ensured that enough friction is generated between the floor mopping cloth and the floor, and the cleaning effect of the floor mopping machine is improved; meanwhile, even though slightly shaped or lengthened, the floor mopping cloth can be compensated through the floor-mopping cloth tensioning mechanism so that normal word cannot be influenced, and the user experience is improved.

The invention relates to a balance weight body with a self-tensioning effect. The balance weight body comprises two parallel fixing plates, a rack and metal balance weights, wherein the fixing plates are fixedly connected through two horizontal fixing rods; the rack is arranged between the fixing plates; the balance weights are fixed on the fixing plates; the rack comprises two clamping plates; a first long slotted hole and a second slotted hole, which penetrate through the front parts and the rear parts of the clamping plates are formed in the clamping plates; the two fixing rods are arranged in the first long slotted hole and the second slotted hole respectively; the rack further comprises a first fixed pulley, a second fixed pulley, a movable pulley and a connecting wire rope; the first fixed pulley and the second fixed pulley are fixed between the two clamping plates; the two ends of the connecting wire rope are connected with the fixing rods respectively; the top of the rack is fixedly connected with an upper wire rope; the movable pulley is fixedly connected with a lower wire rope. Since the distance between the nodes of the upper wire rope and the lower wire rope of the balance weight body provided by the invention can be adjusted freely within a certain range, a hanging wire rope can be kept tight, a traction wheel is free from the phenomena of slipping and idle rotation during working, and the working stability of the whole traction mechanism is guaranteed.

The invention relates to the field of decoration garbage, in particular to decoration garbage treatment equipment. The equipment can adjust a smashing degree of the decoration garbage according to anactual situation. The equipment comprises a smashing assembly, a separating assembly, an input motor and a connecting belt, wherein a first rectangular sliding block and a second rectangular sliding block are driven by a first hinge connecting rod and a second hinge connecting rod to relatively slide in a first rectangular sliding groove respectively, then a distance between the first rectangularsliding block and the second rectangular sliding block is changed, and then a distance between a first smashing roller and a second smashing roller is changed, so that the specification of a decoration garbage fragment capable of being adapted to a space between the first smashing roller and the second smashing roller is changed, and the adjustment of a decoration garbage smashing effect is achieved. Through matched connection of a first inner end clamp and a first clamping groove, positioning of a sliding position of a driving slider on an outer frame is achieved, and then control over the decoration garbage smashing degree through adjustment is achieved.

The invention relates to a system and a method for continuous electrolysis processing of microgroove groups of a flexible metal sheet, and belongs to the technical field of electrolysis processing. The system comprises a flexible metal sheet workpiece conveying system, an electrolysis processing tool electrode system, a processing power source, an electrolyte circulating system, and an electrolysis processing machine tool. The method comprises the following steps of during processing, firstly, clamping the flexible metal sheet, enabling the flexible metal sheet to penetrate between a plurality of support rollers and an arc-shaped masking plate, and enabling the inner and outer surfaces to tightly attach with the corresponding support rollers and the arc-shaped masking plate; according to the structure and size of each microgroove group, selecting a tool electrode, and completing the clamping; flushing electrolyte, feeding each tool electrode along the radial direction of the corresponding support roller, and processing a groove structure in the surface of the flexile metal sheet; processing to the specified depth, enabling a driving wheel to continuously rotate, and driving the flexible metal sheet to slowly slide along the tangential direction of each roller, so as to complete the continuous processing of the microgroove groups of the flexible metal sheet. The system and the method have the advantages that the tool electrodes can be synchronously performed with auxiliary movement, and the updating of electrolyte and the discharging of electrolysis products are promoted.

The invention discloses a varnished wire pulling and winding device which comprises a base, an installing frame and winding rolls. The installing frame is fixedly connected with the base and extends forwards. A rotating guide ring is arranged at the front end of the installing frame. A pulling guide mechanism is arranged on the inner side of the rotating guide ring. By arranging a first supportingplate, a second supporting plate and a bi-directional screw rod, the first supporting plate and the second supporting plate are arranged symmetrically, and the distance between the supporting platesis adjusted to adapt to installing of the winding rolls of different specifications; by arranging an elevating frame and a vertical screw rod drive mechanism, the winding rolls can be assembled and disassembled in a labor-saving manner; and by arranging the pulling guide mechanism comprising a tension mechanism and a fixing guide ring, tensioning and pulling winding of varnish wires can be achieved, uniform and closeness of the varnish wire winding rolls are ensured, and the winding roll quality is improved.

The invention discloses a bendable LED (light emitting diode) module, which comprises an elastic part layer (20) and an adjusting part (30), wherein a plurality of light emitting assemblies are arranged on the elastic part layer (20), the adjusting part (30) is arranged at the back part of the elastic part layer (20), and is tensioned or supported at the two sides of the elastic part layer (20), and the elastic part layer (20) is bent in an inner arc or outer arc way. The bendable LED module has the advantage that after the elastic part layer (20) is bent and deformed, a larger clearance or gap between the light emitting assemblies is avoided, so the display effect is better.

The invention discloses a rolling device for lining cloth production. The rolling device comprises a frame, a transmission mechanism, a rolling shaft and a discharging mechanism. The transmission mechanism is arranged on a front stand column of the frame, one end of the rolling shaft is detachably connected with the transmission mechanism, and the other end of the rolling shaft is shelved on a rear stand column of the frame. The discharging mechanism is arranged between the front stand column and the rear stand column of the frame. Compared with the prior art, fixing and detaching can be convenient, the fixing reliability is high, labor is saved, and the labor intensity is lowered.

The invention provides an adjustable adaptive traveling mechanism in a pipeline, which can be applied to various pipeline projects. In the traveling mechanism, a chain can be tensioned by arranging a chain tensioning mechanism; parallel motion of parallel brackets is realized through an adjusting mechanism; the traveling mechanism has the function that the distance between the two parallel brackets can be automatically adjusted according to looseness of soil, so that the chain is contacted with the soil all the time; and a chain with an accessory ensures that the chain is effectively contacted with the soil during movement to produce sufficient forward thrust.

The invention relates to a cradle cabinet for a pull-type radar electronic device, comprising: a cabinet body, a sliding frame assembly, track beams and a cradle, wherein the front side of the cabinetbody is provided with an accommodating cavity with an open end, the upper and lower ends of the sliding frame assembly are respectively slidably connected with track beams, the track beams are fixedly connected to the vertical side wall of the accommodating cavity, and the cradle is hinged with the front end of the sliding frame assembly. When the sliding frame assembly slides along the track beams, the cradle may be pumped back and forth by pulling in the cabinet body and rotate around the front end of the sliding frame assembly. The invention solves the contradiction between the large cradle depth and the smaller cabinet width of the conventional rotating shaft fixed cradle cabinet, and reduces the square space occupied by the overall cabinet. The cradle motion form of the pull-type andhinge-type rotation makes the overall structure compact with no maintaining dead angle, has strong system openness, and greatly utilizes the internal space of the cabinet.