39results about How to "Offset friction" patented technology

The invention discloses a floating spiral walking mileage metering device, which comprises a device body and two traveling mechanisms respectively mounted at the front and rear ends of the device body through end caps. The device body includes an instrument bin and a mileage metering bin. The traveling mechanisms include central shafts, rotating bracket seats, sliding bracket seats, first springs, second springs, pressing members, and three sets of floating centering mechanisms; the rotating bracket seats, the first springs, the sliding bracket seats, and the second springs are nested on the central shafts successively; the rotating bracket seats and the central shafts are connected by bearings; the first springs, the sliding bracket seats, and the second springs are compressed on the end surfaces of the rotating bracket seats one by one by compressing members; and each set of floating centering mechanisms is connected with the sliding bracket seat and the rotating bracket seat. The device has the following advantages: on the basis of the principle of spiral motion, the whole device is started, accelerated, or decelerated stably and the self-centering is kept all the time; displacement measurement is performed by using an independent meter wheel to avoid the walking track interference of the wheel, so that the measurement accuracy is high.

The invention relates to a hinged opening device for a window, a door, or the like, having at least one hinged arm that can be supported so as to be pivotable about a rotation axis, wherein the position of the rotation axis can be shifted by means of a rotatable eccentric, and wherein the eccentric has an anti-rotation locking device. It is provided that the anti-rotation locking device (24; 49) has at least one anti-rotation locking element (46; 51) inserted into at least some areas of a cutout (32; 52) provided in a frontal area (31) of the rotatably supported eccentric (21). The invention further relates to fittings (23) for a window, a door, or the like.

The invention discloses a card storing and taking mechanism, and a card storage device including the same. The card storing and taking mechanism includes a clamping mechanism and a first driving mechanism, wherein the clamping mechanism includes a first clamping block, a second clamping block and a second driving mechanism; a first clamping unit is arranged on the first clamping block; a second clamping unit is arranged on the second clamping block; the card storage device includes a frame, a rotation disk and the card storing and taking mechanism which are vertically arranged on the frame; the card storing and taking mechanism is arranged on the frame and one side of the rotation disk; the rotation disk is provided with a plurality of card storage grooves; the notch of each card storage groove is arranged on the cylindrical surface of the rotation disk; and a support member is arranged below the rotation disk. The card storing and taking mechanism can assist a carrying dolly to complete the action of taking cards and sending cards, and can conveying the intelligent cards to the right place during the process of conveying the intelligent cards in the carrying dolly to the card storage grooves of the carrying dolly.

The invention relates to a structure for locating a vacuum cavity. The cavity mainly comprises a location structure, a lifting structure, an upper board and a lower board, wherein, the location structure is used for arranging and setting as well as locating the upper board; the location structure is provided with a long groove which is used for arranging and setting the lower board; at least a group of scalable locating groups is arranged on the bottom of the long groove in the location structure; a wheel body which can insert into or remove from the long groove is arranged on the front end of the locating group; the lifting structure is used for pushing the lower board to move along the long groove; the locating efficiency of the lower board can be enhanced by adopting the wheel body of the locating group to insert into the long groove and force to lift the lower board. The invention has the advantages of prolonging the service life, easy disassembly and convenient repairing.

The invention discloses an auxiliary tube drawing device for deep hole karst grouting and a construction method thereof. The device comprises a big drilling rod (1), an external tube (2), a steel sleeve (3) and a small drilling rod (4); the diameter of the big drilling rod (1) is larger than the diameter of the external tube (2), the diameter of the external tube (2) is larger than the diameter of the steel sleeve (3), the diameter of the steel sleeve (3) is larger than the diameter of the small drilling rod (4), the external tube (2) is shorter than the steel sleeve (3), the external tube (2) is arranged outside the steel sleeve (3), and the steel sleeve (3) is arranged under a bed rock face. The construction method comprises the steps that a drilling machine strikes the big drilling rod to be underground, after the big drilling rod is drawn out, the external tube is struck in, the steel sleeve is struck to be under the bed rock face inside the external tube by adopting the drilling machine, and the steel sleeve is left in rock; the small drilling rod is struck to be under the bed rock face or under a bottom karst cave inside the steel sleeve, after the small drilling rod is drawn out, a stop-grouting plug is arranged downwards, then grouting is conducted, after the grouting is completed, the steel sleeve is drawn out in case the steel sleeve needs to be recycled, then the next hole grouting construction is conducted, and the process is recycled.

The invention discloses a method for cutting and kneading forage grass and a machine tool, and specifically relates to the technical field of forage grass processing. The method for cutting and kneading forage grass includes four steps of cutting, cutting, kneading and discharging. The forage grass The guillotine cutting and kneading machine is composed of a guillotine cutting chamber, a feeding chamber, a kneading chamber, a discharge cylinder and a blower. The guillotine cutting chamber is equipped with a guillotine cutting assembly, and the inside of the feeding chamber is equipped with a shaking mechanism. The guillotine cutting assembly and the shaking mechanism are connected to the same belt drive wheel set, the kneading part is arranged inside the kneading chamber, and the spiral agitator is arranged inside the discharge cylinder. The whole machine integrates the functions of cutting, kneading and crushing, and sieving. It has strong applicability, and the machine has a simple structure, good compactness, and a small footprint. At the same time, the shaker mechanism is set to increase the feeding speed and offset friction. It can prevent the clogging and stalling of the kneading parts in the kneading chamber, ensure the normal operation of the machine, and improve the working efficiency of the whole machine.

The technical solution of the present invention is achieved as follows: a hydraulically assisted gate opening and closing device includes a base, a gate body and opening and closing equipment arranged on the base, an auxiliary well is opened on the base, and the The opening and closing equipment includes a hoisting mechanism, a door opening mechanism and a door closing mechanism. The hoisting mechanism includes a motor and a rotating assembly. The door opening mechanism includes a first force wire rope. The door closing mechanism includes a weighted water tank, a second force wire rope , door-closing wire rope, and the first fixed pulley, the third fixed pulley, and the fourth fixed pulley fixed on the base; the present invention achieves the purpose of opening and closing the gate by switching between the first main force steel wire rope and the second main force steel wire rope, and simultaneously utilizes The weighted water tank balances the friction force when opening and closing the gate, which facilitates the opening and closing of the gate, and at the same time reduces the required kinetic energy, reduces the load on the motor, and improves the service life of the equipment.