54results about How to "Clamping force adjustment" patented technology

The invention discloses a yarn clamping device for an air-jet room. The yarn clamping device comprises an upper pressing plate and a lower supporting plate. Both the upper pressing plate and the lower supporting plate are arranged on a connection plate. Two upper rolling wheel shafts are arranged on the upper pressing plate. Upper rolling wheels are arranged on all the upper rolling wheel shafts respectively in a sleeved mode. First grooves are formed in the circumferences of all the upper rolling wheels respectively. The two upper rolling wheels are connected through upper rubber belts. The upper rubber belts are arranged in the first grooves. Two lower rolling wheel shafts are arranged on the lower supporting plate. Lower rolling wheels are arranged on all the lower rolling wheel shafts respectively in a sleeved mode. Second grooves are formed in the circumferences of all the lower rolling wheels respectively, the two lower rolling wheels are connected through lower rubber belts, and the lower rubber belts are arranged in the second groove. Weft yarn clamping gaps are formed through match of the upper rubber belts and the lower rubber belts, and both the contact pressure and the contact length of the upper rubber belts and the lower rubber belts can be adjusted. By means of the yarn clamping device, effective weft yarn clamping can be achieved, and quality of finished fabric is guaranteed.

The invention discloses a cardiopulmonary cerebral resuscitation rescue device for the emergency department. The device comprises a treatment table, a pad block is fixedly arranged at the top of the treatment table, and grooves with openings in the tops are formed in the two sides of the pad block; a same rotation shaft is rotatably arranged on the inner walls of the two sides of each groove, aslant-arranged neck protection plates are fixedly arranged at the outer sides of the rotation shafts, and sliding grooves are formed in the inner walls of the bottoms of the grooves; pushing plates and sliding plates are slidingly arranged in the sliding grooves, the two pushing plates are located between the two sliding plates, and sliding rods are welded to the sides, away from each other, of the two pushing plates; the sliding plates are located below the sliding rods, sliding blocks are slidingly arranged at the outer sides of the sliding rods, and sliding rod holes are formed in the sides ofthe sliding blocks. The cardiopulmonary cerebral resuscitation rescue device for the emergency department is high in practical performance, simple in structure and convenient to operate, the positionof the neck of a patient is conveniently limited, the force of clamping the neck can be adjusted, the neck is prevented from moving, and the device helps medical personnel to treat the patient.

A mechanical fixture for mechanical automation production that is convenient for automatic control of the clamping force. The fan blade plate is fixed on the arc profile of the output shaft, and the front end of the output shaft is fixed to the connecting sleeve 1; the inner wall of the connecting sleeve 1 is connected to the rotating rod, and the horizontal rod is connected to the sliding Sleeve 1, the fixed vertical rod of sliding sleeve 1, the surface of the vertical rod is connected with sliding sleeve 2, the rear side of sliding sleeve 2 is fixed to the connecting seat, the inner wall of the connecting seat is connected with one end of the rotating rod through a pin shaft, and the surface of the rotating rod is covered with Provide compression spring 1, the two ends of compression spring 1 are fixedly connected with the opposite sides of connecting seat and connecting sleeve 1, the surface of the vertical bar near the bottom is connected with the rotating plate, the side of the rotating plate near the top is connected with splint 1, the surface of the vertical bar The connecting sleeve 2 is sleeved, the top of the connecting sleeve 2 is connected with the bottom of the sliding sleeve 2, the front and rear sides of the connecting sleeve 2 are fixed with limit plates, the opposite sides of the two splints 2 are connected to the airbag, and the splint 1 is provided with a dialing device to dial The feeding device is provided with a feeding device. The invention can realize automatic pick-and-place, subsequent collection and quantitative delivery of materials.

An electromagnetic clamp for clamping an air cylinder sleeve is characterized by comprising a base, two supports are fixedly connected to the upper surface of the base, threaded holes are formed in the end face and the upper surface of the first support and used for installing an end cover and a locking screw, the end cover and the locking screw are used for fixing a clamping chuck, the clamping chuck is provided with grooves which are evenly distributed in the circumferential direction, and the grooves are used for clamping the air cylinder sleeve. End faces of the coils are connected with packaging coils, the packaging coils are evenly distributed in the circumferential direction, and arc-shaped iron cores are arranged in the packaging coils. The end face of the second support is connected with a limiting plate, and the limiting plate is used for guaranteeing the consistency of the air cylinder sleeving and clamping positions. By changing the current direction in the coil, clamping of the inner hole and the outer circle of the cylinder sleeve can be achieved, by changing the current magnitude, the clamping force can be adjusted, and the clamping device is simple in structure, long in service life, high in applicability and low in manufacturing cost.

The invention relates to a method for producing the clamping force for a vehicle produced by an automatic parking brake. Among them, the clamping force is generated by the brake piston (5) and the brake motor (2) acting on the brake pad (7). The technical problem to be solved by the present invention is to provide a method which ensures reliable operation of an automatic parking brake even in the event of a loss of clamping force due to temperature changes of the brake pads, and the method In addition, the load on the components of the automatic parking brake is minimized. For this purpose, after the completed application process of the automatic parking brake (1), the hydraulic pressure is built up in the brake circuit of the vehicle and the pressure loss gradient (dp / dt) in the brake circuit of the vehicle is determined ), wherein an automatic reapplying of the parking brake ( 1 ) takes place or does not take place depending on the ascertained pressure loss gradient (dp / dt).

The invention relates to a device for clamping flexible pressure plates by means of lifting elements (39, 40) which are in the form of a knee lifting drive and arranged in a manner parallel to an axis on a lower rail (43). In order to improve the clamping effect, the lower rail (43) is mounted so that it can be moved linearly and radially with respect to the plate cylinder (1) and with respect to an upper rail (44). One or more spring elements (47) acting upon the lifting elements (39, 40) are provided for moving the lower rail into a clamping position by displacing the lifting element (39, 40) into a working position. One or more expandable pneumatic or hydraulic elements (50) for moving the lower rail (43) into an open position by moving the lifting elements (39, 40) from the working position are provided.

The invention discloses a mould-assembling mechanism for an injection molding machine and a balancing and adjusting method for a mould-assembling force thereof. The mould-assembling mechanism comprises a rear mould plate (1), a moveable mould plate (2), a front mould plate (3), a toggle rod mechanism (4), four pull rods (5) and a pull rod adjusting mechanism, wherein the pull rod adjusting mechanism comprises strain foils (6), servo motors (7) and front nuts (8) which are one-to-one corresponding to the four pull rods (5); the positions and directions of the strain foils (6) on the four pull rods (5) are consistent; the peripheral surfaces of the front nuts (8) are gear-shaped; driving gears (9) are connected with the servo motors (7); and the driving gears (9) are engaged with the peripheral surfaces of the front nuts (8). The uniform stress of the four pull rods is realized by adopting a closed-loop feedback control balancing and adjusting method, so that the function of balancing and adjusting the mould-assembling force is achieved, the reliability of the mould-assembling mechanism is high and the service life is long.

The invention belongs to the technical field of exhaust fans, specifically a multi-mode ventilation exhaust fan for granaries, including ventilation control parts, power parts, fan blades, outer pipe body, inner pipe body and opening adjustment parts; The ventilation control part realizes that the exhaust fan is in a ventilation state, and the opening of the inner pipe body is fully opened by controlling the opening adjustment part, and the No. 1 motor is set to rotate forward at this time, and then the air outside the granary is transported to the granary through the exhaust fan Inside, the ventilation and ventilation of the granary can be realized; the exhaust fan is in a closed state by controlling the ventilation control part, and the opening of the inner pipe body is reduced by controlling the opening adjustment part, and the No. 1 motor is set to reverse at this time , and then realize that the air in the granary is drawn out through the inner tube body, and then the air drawn out by the fan blades returns to the granary through the passage between the outer tube body and the inner tube body, and then the air in the granary is internally circulated.

The invention discloses a track clamping device. The track clamping device comprises an installing support (1), a walking support (2), a track clamp (3), a wedge (4) and a wedge lifting driving mechanism, wherein the track clamp (3) comprises a clamping part (31) and clamp handle parts (32), and the wedge lifting driving mechanism is connected with the installing support (1) and can drive the wedge (4) to insert between the two clamp handle parts (32), so that the clamping part (31) pivots around a rotating shaft (33) to clamp a track (52), or the wedge (4) is lifted upwards away from the portion between the two clamp handle parts (32), so that the clamping part (31) loosens the track (52). In addition, the invention further discloses a track walking mechanism comprising the track clamping device. The track clamping device can provide clamping force higher in reliability.