36results about How to "Avoid internal friction" patented technology

The invention discloses a braking device and a boarding bridge. The braking device comprises a locking member and at least one set of braking assembly. The locking member is fixedly installed on a passage of the boarding bridge; each set of braking assembly comprises a swing member which is rotationally installed on a pick-up port, a swing wheel which is installed on the swing member and an elastic member; the elastic member is provided with pre-tightening force; under normal working state of a driving belt, abutting force is formed by the swing wheel matched with the outer side of the drivingbelt for balancing the pre-tightening force of the elastic member; when the length of the driving belt between a follow-up pulley and a driving wheel exceeds a set value or the driving belt is fractured; the pre-tightening force of the elastic member rotates the swing member to the direction of the locking member and makes the swing member matched with the locking member to achieve braking.

The invention relates to an energy-saving type water collecting device. The water collecting device comprises a shell, a water outlet pipe and at least one water inlet pipe; the shell is conical, a conical flow guide core is sleeved with the shell, a spiral flow guide device is arranged on the outer surface of the flow guide core, the water inlet pipes are evenly distributed on the outer side of the shell and are tangent with the shell, and the tangent position is located between two adjacent spirals of the flow guide device; the water flow of the water inlet pipes are the same with the spirals of the flow guide device in the rotating direction of the shell, the water outlet pipe is located at the end of the shell and is tangent with the shell, and the water outlet direction of the water outlet pipe is the same with the spiral direction of the flow guide device. Through the cooperative arrangement of the flow guide core, the shell and the flow guide device, water flows in the water collecting device run in a sequential manner, the turbulent impact is reduced as much as possible, the water flow internal consumption is reduced, two problems of impact losses and noise in the prior artcan be solved, and the positive technical significance is achieved.

The invention discloses a magnetic-driven linear reciprocating yarn guide device. The device comprises a friction roller, a bobbin and a yarn guide system, wherein the yarn guide system includes a slide block unit and a slide rail unit slidingly matched with each other; the slide block unit includes a top thrust winding, a left suspension winding, a right suspension winding and a slide block top plate; the slide rail unit includes a middle thrust permanent magnet, a left suspension permanent magnet, a right suspension permanent magnet, a left slide rail and a right slide rail; in operation, the other end of a yarn wound on the bobbin is connected with a front surface of the slide block top plate after passing through a yarn guide nozzle and a yarn guide rod in sequence; the left suspension winding, the right suspension winding, the left suspension permanent magnet and the right suspension permanent magnet correspondingly generate magnetic cooperation to suspend the left slide rail and the right slide rail; and meanwhile, the top thrust winding and the middle thrust permanent magnet generate magnetic cooperation to push the slide block top plate to perform a linear reciprocating motion. The device is lower in internal friction force, lower in energy consumption, higher in control precision, simple in structure and easy to machine.

The invention relates to an automatic mechanical garage vehicle carrying platform which comprises a bearing mechanism for bearing vehicles, a push mechanism, a transmission mechanism and a controller. As a power structure for pushing the vehicles is arranged on the bearing mechanism, the structure of a push platform is eliminated, the thickness of the push platform is reduced, the automatic mechanical garage vehicle carrying platform is applicable to vehicles with low chassis, and the specific structural optimization has the technical effects that a push structure of an upper ring beam is simple, free of power, relatively light and thin, and applicable to vehicles with relatively low chassis, vehicles of which the tires are not sufficiently inflated can be taken out, two transmission systems are independent from each other, the structure is simple, the fault rate is low due to the rigid connection, the mechanical action transmission is accurate, the independence of the equipment mechanisms is high, the equipment mechanisms can be directly replaced, the equipment maintenance time is shortened, the alternative repairing can performed, most space is further saved as walking wheels are embedded into the ring beam, the whole platform is thinned, the size is reduced, and the vehicles can be carried relatively stably.

The invention discloses a braking device and a boarding bridge. The brake device includes a lock piece and at least one set of brake components. The locking part is fixedly installed on the passageway of the boarding bridge; each brake assembly includes a swinging part rotatably installed on the machine port, a swinging wheel mounted on the swinging part and an elastic part, wherein the elastic part has a preload Under the normal working condition of the transmission belt, the oscillating wheel cooperates with the outside of the transmission belt to form an abutting force, which is used to balance the pre-tightening force of the elastic member. When the length of the transmission belt between the follower wheel and the drive wheel exceeds a set value Or in a fractured state, the pre-tightening force of the elastic member makes the swinging member rotate toward the locking member and locks and cooperates with the locking member to achieve braking.

The invention relates to complete mineral slurry processing equipment with a coarse mineral slurry pressure building up stream line and a stream line for making minerals into slurry. The equipment comprises a mineral crushing and grinding stream line, an additive solution preparing stream line, a stream line for preparing coarse mineral slurry from ground mineral powder, the coarse mineral slurrypressure building up stream line matched with the stream line for preparing coarse mineral slurry and the stream line for making minerals into slurry matched with the pressure building up stream line, wherein the stream line for making minerals into slurry comprises a mineral slurry refining device matched with the pressure building up streamline. The equipment has the advantages that a pressure building up steam line is added, bonding force and affinity between minerals and water are increased and easy generation of hard sedimentation is avoid; and a guide disc arranged on the mineral slurryrefining device can guide the mineral slurry to flow in and a valve arranged on the mineral slurry refining device can change the volume of an impact cavity and provide a space for material particles.

The invention relates to the field of stereo garage devices, in particular to a vehicle fetching platform used for a cylinder-type stereo garage. The vehicle fetching platform comprises a platform body used for parking vehicles, a correction system arranged on the platform body and used for correcting left and right positions of the vehicles, a carrying mechanism for carrying the vehicles, a pushing mechanism, a transmission mechanism, a support pin telescoping mechanism with flat bed supporting function and a controller for controlling the mechanisms. The vehicle fetching platform is reasonable in structure, stable to operate, efficient and stable and is suitable for fetching vehicles from the cylinder-type stereo garage.

The invention provides a road piezoelectric power generation device and a power generation system under asynchronous vehicle load action. Road piezoelectric power generation devices arranged symmetrically on the same cross section of a road are connected in parallel first, and then connected with a rectifier circuit, the output end of the rectifier circuit is equipped with a diode allowing current to be output only from the rectifier circuit, and a generator set is formed on the same cross section of the road. All the generator sets are connected in parallel, and then connected with a load through a filter circuit. The action forces consistent in magnitude and direction on the surfaces of piezoelectric ceramic power generation chips ensure that all the piezoelectric ceramic power generation chips output alternating current in step. By adopting the system, reverse flow of electric energy is blocked, the problem that the electric energy of the road piezoelectric power generation devices arranged at intervals along the driving direction is consumed internally under direct and inverse piezoelectric effects is avoided, and effective output of all electric energy is ensured.

The invention relates to a single-shaft transmission clamping wheel device for a mechanical garage. The single-shaft transmission clamping wheel device comprises an upper ring beam, two groups of clamping mechanisms and a telescopic shaft, wherein the two groups of clamping mechanisms are arranged on the upper ring beam by sliding rails; the two groups of clamping mechanisms are connected in series by the telescopic shaft; the power output mechanism is meshed with the telescopic shaft; each clamping mechanism comprises a pulley arranged on the upper ring beam by the corresponding sliding rail, a guide chute fixedly formed on the pulley, a sliding block arranged in the chute by the telescopic shaft and a clamping wheel arm which is arranged on the pulley by a fixed shaft, is used for clamping and lifting up an automobile tire and is arranged in pairs; clamping arms arranged in a sliding manner are automatically suitable for an axle distance and can be suitable for axle distances of all small-scale passenger vehicles; two groups of clamping trolleys are connected by a sleeve shaft, so that the single-shaft transmission clamping wheel device for the mechanical garage not only can be suitable for axle distance variation, but also can transmit torsion and is automatically suitable for variation of the displacement positions of the pulleys; connection among connecting plates, the telescopic shaft and the sliding blocks is rigid connection; the single-shaft transmission clamping wheel device for the mechanical garage has a simple structure; the clamping action is accurately transferred in place; rigid connection outputs a large clamping force; and a heavy off-road vehicle can be used.