107results about How to "Avoid self-locking" patented technology

A motor vehicle brake, in particular an electromechanically actuable motor vehicle brake, having an actuator subassembly, including a housing, a servo element which is movable in relation to the housing, for moving a brake pad, a motorised drive, a movement mechanism arranged between the motorised drive and the movable servo element, a gear arrangement associated with the movement mechanism, wherein the movement mechanism has a ball screw with a spindle that can be driven in rotation and a nut that can be displaced linearly in the housing, wherein the nut may be moved, for moving the servo element, by driving the spindle in rotation within the housing. In this motor vehicle brake it is provided for the gear arrangement to have a wrap spring clutch which is arranged in the flow of force between the motorised drive and the spindle such that the wrap spring clutch permits torque to be transmitted from the motorised drive to the spindle, and is constructed to block transmission of torque from the spindle to the motorised drive.

The invention discloses a safety starting method preventing a central processing unit (CPU) from self locking. In an embedded system, a storage space is explored in a flash memory to store a plurality of firmware mirror images. System initialization is carried out, a firmware is searched in the storage space to be loaded on a system on chip, if the firmware is searched, correctness and integrity of the searched firmware are judged, and the firmware is operated when the conditions of the correctness and the integrity are met simultaneous; if the firmware is not searched, a next firmware is searched in the storage space; if the firmware is not searched in the storage space or if correct and integral firmware is not searched in the storage space, a flow of firmware loading failure is switched into. By means of the safety starting method preventing the CPU from self locking, self locking of the CPU is effectively avoided through exactness identification of the firmware and judgment of damage or not.

The invention relates to a high-accuracy stably-operated automobile chassis power measuring machine flywheel set system, and belongs to automobile performance detecting equipment. The system mainly comprises a main shaft assembly (A), a flywheel assembly (B), a brake assembly (C), a main shaft stabilizer assembly (D) and a frame (E), wherein the main shaft assembly (A) is arranged on the frame (E) through bearing seats (3) at both ends and the main shaft auxiliary stabilizer assembly (D) in the middle; the flywheel assembly (B) consists of a plurality of sets of clutches and flywheels with different rotating inertias, and is sleeved on the main shaft assembly (A) through a bearing and a bearing bush; and the flywheels are arrayed on the main shaft in a mode that the massive flywheels are distributed on both sides of the bearing seats, the separation and the combination of the flywheels with greater mass are controlled by double clutches, and the brake assembly (C) is fixed on the frame (E). The system aims to solve the problems of stable operation during high speed testing, high simulation quality accuracy, small axial size during simulating the same rotating inertia, and the like.

The invention discloses an electric lifting flat plate vulcanizing machine for rubber production, which comprises a base and a lifting seat. The two sides are connected with uprights, the inside of the uprights is connected with a straight rack, the middle part of the lower end of the lifting seat is connected with a lifting motor, the upper end of the lifting motor is connected with a driving wheel, the two ends of the driving wheel are meshed with a driven wheel, and the upper end of the driven wheel is connected with a rotating shaft. The upper end is connected with a worm, and the inner side of the worm is meshed with a worm wheel. The coaxial position of the worm wheel is connected with a lifting wheel. The lower end of the lifting seat is provided with a connecting plate. With water tank. The present invention realizes the vulcanization of rubber, and the purely mechanical structure is easy to operate, avoids the leakage of oil and water, ensures the cleanliness of the equipment itself, and has high reliability.

The invention discloses an automobile micro electric jack which comprises a direct current 12V motor with an electromagnetic drive brake, a four-level reduction gear system, a lifting screw, a bottom plate and an outer shell, wherein the lifting screw is a screw structure which is formed through mounting screws of three levels in a sleeving manner; and the lifting screws of the three levels are ball screw structures. The automobile micro electric jack is small in volume, has the advantages of highly smooth operation, precise locating, low torque, high rigidity, super silence, and the like, during lifting, and is labor-saving and rapid, and the motor lifts to jack up an object.

The invention discloses a simultaneous ring which comprises an outer ring and an inner ring. A plurality of stopping blocks are distributed on the end face, far away from a gear, of the outer ring in the circumferential direction, and a notch is formed between every two adjacent stopping blocks; the inner ring comprises a circular-ring-shaped base provided with an inner conical surface and an outer conical surface, and therefore an inner taper angle A and an outer taper angle B are formed, the value of the inner taper angle A needs to be set to be small, and the value of the outer taper angle B needs to be set to be large; and a plurality of protruding blocks are distributed on the end face, far away from the gear, of the circular-ring-shaped base in the circumferential direction, the multiple protruding blocks are clamped into the multiple notches, the circumferential width of the protruding blocks is smaller than the circumferential width of the notches, and therefore the outer ring is allowed to be rotated by a certain angle relative to the inner ring. The invention further discloses a double-ring single-conical-surface synchronizer with the above simultaneous ring. By means of the simultaneous ring, larger simultaneous capacity can be guaranteed under the condition of one single conical surface, the self-lock adhesion phenomenon can be avoided, impact in the ring pulling process after synchronization is avoided, gear shifting is smooth, manufacturing is convenient, and the production cost is low.

The invention relates to a hoisting mechanism of a multi-lifting-point joint crane, adopting double wound roll, steel wire rope multi-layer wrapping and symmetrical rope dropping types, and adopting the type that lifting hook connecting pieces are respectively hinged or fixedly connected with corresponding lifting hook groups through pin rolls. The invention has novel structure, solves a series of problems that deflection angles of steel wire ropes of a super-heavy large-span crane is not easy to be ensured, horizontal wrapping distance of the steel wire rope is too long, the efficiency of the mechanism is tool low, self-locking is easily caused for the mechanism, lifting joints are not synchronous, construction difficulty is large, and the like, has the characteristics of security, reliability and strong practicability, can avoid fatal security risk, is suitable for the crane with 10000-ton super-large hoisting duty, and is especially suitable for the multi-lifting-point joint crane for lifting when a marine drilling platform form abutting joint with subsections.

The invention discloses a multistage juice and peel separating device for passion fruits. The separating device includes a feeding mechanism, main shaft power mechanisms, grab bucket mechanisms, a linear cutting mechanism, juice separation mechanisms, spongy layer separation mechanisms, popup mechanisms, a push-in roller mechanism and a peel separation mechanism; the feeding mechanism is installedat the upper part on the rear side of a supporting platform; the two main shaft power mechanisms are symmetrically arranged on the supporting platform; four grab bucket mechanisms in circumferentialuniform distribution are installed on each main shaft power mechanism in a radial direction; the grab bucket mechanisms are provided with openings corresponding to the supporting platform; the linearcutting mechanism is installed on the rear side of the supporting platform; the two juice separation mechanisms are symmetrically installed at the lower parts of the openings; the two spongy layer separation mechanisms are symmetrically installed on the two sides of the supporting platform; the popup mechanisms are installed at the rear parts of the grab bucket mechanisms; the push-in roller mechanism is installed in front of the grab bucket mechanisms; and the peel separation mechanism is installed at the lower part of the discharging port of the push-in roller mechanism. Thus, the multistageprocessing of the juice and peels of the passion fruits can be realized, processing can be automated, so that the separating device is time saving and labor saving.

The invention relates to the technical field of lifters, in particular to a lifter fixing device. The device comprises a shell, wherein two rotating shafts are connected between the inner walls of thetwo sides of the shell through bearings, two worms are connected to the outer wall of each of the two rotating shafts through flat keys respectively, four connecting cylinders are connected to the outer wall of the bottom of the shell through bolts, a stud is connected into each connecting cylinder through a bolt, a supporting block is arranged at the bottom of each stud, evenly-distributed anti-skid protrusions are arranged at the bottom of each supporting block, a thrust bearing is arranged in each supporting block, and the bottom end of each stud is inserted into the corresponding thrust bearing. According to the device, connecting blocks are driven to move through rotation of a double-thread screw, so that the connecting blocks drive wheels to be folded and unfolded through connectingrods and lifting rods, the wheels can be folded when a lifter mounted at the top of the shell does not move, the lifter is supported only through the studs, the whole operation is simple, convenientand fast, and the device is suitable for practical application.

The invention discloses a clamping device and a slicer with the same. The clamping device comprises a control part, a wedge part, a clamping part and a shell and is characterized in that the wedge part is provided with a first end, a second end and a first oblique surface between the first end and the second end, and the wedge part expands from the second end and the first end; the clamping part is provided with a second oblique surface, the first oblique surface and the second oblique surface are oppositely arranged, and the first oblique surface can move relative to the second oblique surface; the shell is provided with a first guide part, a second guide part and a cavity, the control part is mounted in the first guide part, the clamping part is mounted in the second guide part, and thewedge part is arranged in the cavity; by controlling the control part to move towards the wedge part, the control part contacts with the first end of the wedge part, pushes the wedge part to move andallows the first oblique surface of the wedge part to contact with the second oblique surface of the clamping part and move along the second oblique surface, and accordingly the pushing force, along afirst direction, of the control part is converted into clamping force, along a second direction, of the clamping part.

The invention relates to a compensation device (9) having a variable compensation volume (13, 22) for use in a brake system (1) in order to carry out a recuperation operation, comprising: an electrohydraulic actuator (10) for providing a variable compensation volume (13, 22); and a guard valve (15) which is configured to separate the compensation volume (13, 22) from an inlet-side inlet volume (31) with respect to an external pressure change if an absolute pressure in the inlet volume (31) exceeds a predefined pressure threshold value. Furthermore, the invention relates to a motor-vehicle brake system having a compensation device of this type.

The invention discloses a banknote conveying bag device capable of authenticating in a bidirectional mode. The banknote conveying bag device comprises a banknote conveying bag, an anti-fake seal and a reader-writer, wherein a zipper structure capable of opening or closing the banknote conveying bag is arranged on the banknote conveying bag, the anti-fake seal is arranged on the banknote conveying bag and is used for locking or unlocking the zipper structure, the anti-fake seal comprises a lock cylinder structure with an electric sealing device, the reader-writer is used for controlling the anti-fake seal, reading and writing the banknote sealing information of the electric sealing device and sending locking or unlocking instructions to the electric sealing device so as to enable the electric sealing device to output signals enabling the lock cylinder structure to execute locking or unlocking operation, and the reader-writer is provided with a digital signature generation unit for generating digital signatures. The banknote conveying bag device can improve the safety of instruction transmission controlled by the reader-writer.

The invention provides a handheld tin soldering device. The handheld tin soldering device comprises three parts, namely a tin discharging device, a heating device and a feeding device, wherein the feeding device comprises a lower clamping head, a locking loop, a thermal insulation shell, a feed piston, an upper clamping head, a press key, a reset spring and a feed spring; each of the lower clamping head and the upper clamping head is an elastic body and can tightly clamp or release tin wires; under the action of the press key, the reset spring and the feed spring, the lower clamping head and the upper clamping head can realize the feeding of tin wires and the resetting of the device; the heating device can melt the fed tin wires internally; and the tin discharging device is used for guiding molten tin out. The handheld tin soldering device has the benefits as follows: the feed amount of tin wires can be manually controlled, tin wires are prevented from getting stuck, and the waste of tin wires is reduced during the manual tin soldering process; besides, the tin soldering device can be operated by one hand during use, and the tin soldering process is safe and convenient.

The invention discloses a fixing structure of light bars in an LED backlight module. The fixing structure of the light bars in the LED backlight module comprises LED light bar PCBs (Printed circuit boards) and a metal back plate; the LED light bar PCBs are provided with at least one U-shaped groove; the metal back plate is provided with positioning columns which are formed by stamping and used for matching with the U-shaped grooves, and is also provided with a plurality of first limit protrusions and a plurality of second limit protrusions, the first limit protrusions and the second limit protrusions are formed by stamping, two long sides of the LED light bar PCBs abut against the positions of the first limit protrusions and the second limit protrusions to enable the LED light bar PCBs to be clamped between the first limit protrusions and the second limit protrusions, the first limit protrusions are also provided with elastic press pieces to press the surfaces of the LED light bar PCBs towards the large surface of the metal back plate. The fixing structure of the light bars has the advantages of being easy and convenient to install, high in production efficiency, relatively low in costs, accurate and reliable in positioning, not easy to slip off in vibration and drop tests, good in contact between the light bars and the metal back plate and capable of smoothly conducting heat out through the metal back plate.

The invention discloses anti-panic rope ascender / descender equipment. The anti-panic rope ascender / descender equipment comprises a body, a movable cam and a releasing and clamping mechanism, wherein a lockhole is formed in one end of the body, one end of the movable cam stretches into the end, deviating from the lockhole, of the body, the end of the body is hinged with the movable cam, and a first rope threading gap is formed between the end of the movable cam and the body; the releasing and clamping mechanism comprises a handle, a first friction element and a second friction element, andthe first friction element and the second friction element are arranged on the handle; one end of the handle is hinged with the end, deviating from the body, of the movable cam; and a second rope threading gap is formed between the first friction element and the second friction element. The anti-panic rope ascender / descender equipment is simple in structure, by arranging the first rope threadinggap, the second rope threading gap and the movable cam, the anti-panic rope ascender / descender equipment is smooth when a rope ascends and is locked automatically within a very short travel when the rope is loaded, and self-locking can be achieved during descending when a user instinctively clenches the handle due to panic caused by rapid falling.