20 results about "Partial gravity" patented technology

The invention discloses a sensor support device and system for concrete filled steel tube ultrasonic detection. The sensor support device comprises a grip, a pressing plate and an adsorption mechanism. The lower end of the grip is connected with the pressing plate, and an ultrasonic detection sensor is installed in the center of the bottom face of the pressing plate. At least three groups of adsorption mechanisms are designed, and are uniformly arranged at intervals along the periphery of the ultrasonic detection sensor in the circumferential direction; each adsorption mechanism is provided with a magnet block used for being adsorbed to the outer wall of the steel pipe. The invention also discloses a concrete filled steel tube ultrasonic detection system. The device has the beneficial effects that the magnet block of the adsorption mechanism and the outer wall of the steel pipe can generate stable magnetic attraction acting force, the magnetic force can directly offset part of gravity load of the detection device, detection personnel only need to hold the grip to guide the direction, no extra supporting force is needed, and the device can be preliminarily attached to the surface of the steel pipe; the basic bearing burden of the hand is greatly reduced, and the problem that in the prior art, the labor intensity of workers is large is solved.

Vacuum pump as part of a vacuum wastewater system for emptying and flushing toilets and urinals - with a collecting inlet line which is connected to an inlet (2) in a housing (1) of the vacuum pump and is closed inside the housing by a flap valve (12) when the vacuum pump is not in operation, - with a cutting device (4) which is axially arranged and which crushes solid substances in the wastewater, - with an axially arranged screw spindle (5) which, when rotated, forms a water ring (6) necessary for generating the vacuum and draws in the wastewater by means of vacuum, - with an outlet (7) and - with a drive motor (9) for the cutting device (4) and the screw spindle (5), characterized in that the inlet (2) is continued inside the housing (1) as a tubular channel (10) and the outlet opening (11) from the channel (10) can be closed by the flap valve (12), supported by gravity or part of the gravity of the flap (13) of the flap valve (12).

The application discloses a horizontal moving electromagnetic friction equivalent simulation test device, and belongs to the technical field of space and deep space exploration. The upper part of an electromagnetic sleeve is a sleeve piece with large flexibility. An electromagnet is arranged on the sleeve piece. The electromagnetic attraction force is changed by changing the current of the electromagnet, so that the deformation of the sleeve piece is affected to change the normal pressure of the sleeve piece on a vertical rod. The friction between the sleeve piece of the electromagnetic sleeve and the vertical rod is changed, and part of the gravity is offset to control the equivalent gravity. The lower part of the electromagnetic sleeve is a supporting piece. The edge of the supporting piece is a bolt hole. The bolt hole is connected with a test prototype. The current of the electromagnet at the upper end of the electromagnetic sleeve is controlled and adjusted in real time, so that the control and adjustment of the equivalent gravity are realized. The moving speed of a horizontal moving platform is controlled, so that the vertical drop shock and the horizontal speed coupling working condition are simulated. The accuracy and applicability of the equivalent gravity acceleration simulation test are improved.

The application discloses a kind of airflow weight-reducing electric iron, including outer shell, control unit, high-speed air supply device and ironing unit, ironing unit is located at the lower end of outer shell, ironing unit has ironing surface, outer shell is equipped with the air inlet structure that is communicated with the air inlet end of high-speed air supply device, the lower end surface of outer shell is equipped with the air outlet structure that is communicated with the air outlet end of high-speed air supply device, so that the high-speed airflow generated by high-speed air supply device flows through air outlet structure and is sprayed towards the side of the ironed object, high-speed airflow can generate upward thrust on electric iron, so as to offset part of the gravity of electric iron or make electric iron form suspended state, ironing surface is protruded downwards from air outlet structure, high-speed airflow is generated by high-speed air supply device and sprayed towards the side of the ironed object, airflow thrust can offset part of the gravity of electric iron or make it suspended, greatly reduce the feeling of weight when hand-held operation, avoid arm fatigue caused by long-time ironing, improve use comfort and ironing efficiency.

The present application belongs to the technical field of mine hoist, and provides a mine hoist and control method for reducing rope wear, comprising: a lifting component, including a main machine assembly and a guide wheel assembly, the guide wheel assembly provides a guide and limiting action for the main machine assembly to be retracted and extended; through the setting and cooperative use of the lifting component and the load carrying component, the synergistic design of the lifting component and the load carrying component effectively reduces the rope wear. The main machine assembly in the lifting component adopts double-row retractable and extendable main machine, and the force of the balanced lifting cable is symmetrically arranged to avoid excessive friction at a single point. The load carrying component is adaptively configured according to the tunnel environment: for inclined roads, the first cage assembly adjusts the inclination angle of the first cage through the base to make part of the gravity dispersed to the limiting slide and the pulley, thereby reducing the direct tension of the lifting cable; for vertical roads, the second cage assembly connects the cable in an S-shaped arrangement through multiple limiting rollers in the lifting piece to disperse the cable stress and reduce local wear.

The invention relates to the technical field of geological drilling, in particular to an electric transmission vertical shaft drilling machine and an automatic bit feeding method. The electric transmission vertical shaft drilling machine comprises a base, a main motor driving unit, a vertical shaft rotating device, a winding device and a motor auxiliary driving unit, wherein the main motor driving unit, the vertical shaft rotating device, the winding device and the motor auxiliary driving unit are integrated on the base. The main motor driving unit drives a vertical shaft in the vertical shaft rotating device to rotate or drives a winding drum in the winding device to rotate. When pressure reduction drilling is carried out, the main motor driving unit drives a vertical shaft in the vertical shaft rotating device to rotate, and the motor auxiliary driving unit drives a winding drum in the winding device to rotate so as to lift a drill rod in the vertical shaft to offset part of gravity of the drill rod, so that the actual drilling pressure of the drill rod to a stratum reaches a preset value; and the operation interruption caused by stroke limitation is completely eliminated, so that the drill rod can continuously rotate and be lowered, and the drilling efficiency is improved.

The application discloses a kind of clean cable of semiconductor equipment air floatation movement platform with bending resistance, belong to cable technical field, including cable body and be used for the installation base of cable body limit, cable body includes combination conductor, combination conductor both ends are connected with terminal, terminal is connected with installation base by fixing part, terminal end is provided with installation wind cover, and force arm traction piece is provided on terminal for reducing the pressure of combination conductor.The application is provided with air passage in the cable, and the opening and closing air hole is provided with dynamic adjustment in the air passage, and the upward buoyancy is generated when releasing trace gas in linear motion, the normal pressure of motion platform is effectively reduced by cable dead weight, the friction and abrasion when cable movement are reduced, the opening and closing air hole is automatically opened when cable bending is stretched, the air impact baffle generates counterthrust, and dynamic support is provided for the cable of bending place, the influence of partial gravity is offset, and the interference of air floatation movement platform is reduced.

The present application relates to the technical field of geological drilling, and particularly relates to an electric transmission vertical shaft drilling machine and an automatic drill feeding method. The electric transmission vertical shaft drilling machine comprises a base and a main motor driving unit, a vertical shaft rotating device, a hoisting device and a motor auxiliary driving unit integrated on the base. The main motor driving unit drives the vertical shaft rotation in the vertical shaft rotating device or drives the drum rotation in the hoisting device. When pressure reduction drilling is performed, the main motor driving unit drives the vertical shaft rotation in the vertical shaft rotating device, and the motor auxiliary driving unit drives the drum rotation in the hoisting device, so as to lift the drill rod in the vertical shaft to offset part of the gravity, and then the actual drilling pressure of the drill rod on the stratum reaches a preset value, the operation interruption caused by stroke limitation is completely eliminated, the drill rod can continuously rotate and be lowered, and the drilling efficiency is improved.

The invention relates to the technical field of plate erecting machines, in particular to a prefabricated part wallboard erecting machine which comprises a first base plate and a hydraulic cylinder arranged at the bottom of the first base plate, a first supporting plate is fixedly installed on the upper surface of the first base plate, a storage frame is hinged to the top of the first supporting plate, and a first roller set is arranged on the storage frame; and sleeves are arranged on the two sides of the storage frame correspondingly, limiting frames are detachably connected into the sleeves, and the limiting frames are used for limiting the wallboards when the wallboards are stored. According to the wall board clamping device, the wall board can automatically slide into the clamping frame, on one hand, damage to the wall board due to the fact that the contact portion of the wall board and the clamping device in a traditional mode is too large in stress is avoided, on the other hand, when the wall board inclines, gravity can be dispersed, part of gravity of the wall board can be borne by the clamping frame, and the bearing load of the clamping frame is reduced.

The utility model relates to a kind of pendulum conveying devices for rock wool conveying, it is characterized by: including pendulum rack, pendulum unit, linear reciprocating drive unit, transition feeding unit and pendulum movable support unit;In the utility model, support guide roller for supporting is arranged on the side of pendulum unit, and pendulum movable support unit is arranged at the top of pendulum rack, when pendulum unit bottom swings under the drive of linear reciprocating drive unit, pendulum movable support unit is supported by the lever structure formed around the flap hinge point by the flap structure of support cylinder support, pendulum unit can let part gravity be applied on pendulum movable support unit, reduce the pressure to linear reciprocating drive unit, improve the service life of entire linear reciprocating drive unit.

The utility model discloses a power transmission line cross arm, which relates to the technical field of cross arms and comprises a tower, a reinforcing assembly and a cross arm assembly, the reinforcing assembly is arranged on the outer side of the tower, and the cross arm assembly is arranged on the upper side of the reinforcing assembly. The reinforcing assembly comprises reinforcing hoops and first reinforcing blocks, the reinforcing hoops are arranged on the left side and the right side of the tower, the reinforcing hoops, the connecting shaft, the cross arm body and the installation hoops are arranged, the device can be matched with the cross arm body through the installation hoops for fixation, the cross arm body is reinforced through the two reinforcing hoops, and the cross arm body is fixed through the first reinforcing blocks and the second reinforcing blocks. Meanwhile, the reinforcing hoop and the cross arm body are connected through the adjustable connecting shaft, the cross arm body can be positioned through the connecting shaft and the reinforcing hoop, so that the device is easier to disassemble and assemble, meanwhile, part of gravity borne by the cross arm body is conducted to the reinforcing hoop through the connecting shaft, and the device can achieve reliable fixation of the cross arm body and a tower; the cross arm body is more stable, and power transmission lines are prevented from being broken.

The utility model relates to mechanical technical field, concretely is a kind of for the sliding board with air hole of sliding platform. Including the sliding board of inclination arrangement, the lower end of the one side of sliding board is connected with connecting plate, connecting plate both sides are equipped with side plate, and the inside of sliding board lower end, connecting plate, side plate forms cavity, and air pipe one end connects compressed air source, and air pipe other end is connected with the connector assembly on connecting plate, and sliding board surface is equipped with several air holes. Compared with prior art, upward airflow overcomes the partial gravity of bagged cement, and the dust on the surface of sliding board is cleaned to a certain extent, the friction between bagged cement and sliding board is reduced, and the smooth operation of equipment is more beneficial.

The utility model provides a power grid service system based on gravity energy storage, which comprises a first subsystem consisting of a closed guide rail system arranged on a fluctuating structural surface, a plurality of gravity energy conversion vehicles running in the guide rail system and the like. Part of the gravitational energy conversion vehicle in the first subsystem converts photovoltaic electricity into gravitational potential energy of the gravitational energy conversion vehicle in the process of ascending along the track; meanwhile, the other part of the gravity energy conversion vehicle converts potential energy into controllable alternating current which is preferred by a power grid and has rotational inertia in the descending process along the track and transmits the controllable alternating current to the power grid. The second subsystem is a vertical gravity energy storage system, can independently complete charging-discharging work, and can cooperate with the first subsystem to complete stable power supply to the network. The service system can carry out real-time charging-discharging work in the morning and afternoon; energy is stored in the'light (electricity) abandoning 'period at noon, and discharging is carried out in the electricity utilization peak at night, so that the economical efficiency of a photovoltaic power generation project is greatly improved.

The invention discloses an inclined self-balancing wall-attached support for a hydraulic climbing formwork frame body of a super high-rise building, and relates to the technical field of climbing formwork wall-attached supports, the inclined self-balancing wall-attached support comprises a wall-attached anchor plate used for being anchored on a wall body, a base framework and an armature framework are fixed on the wall-attached anchor plate through bolts, and a locking mechanism for converting the gravity of a climbing formwork into positive pressure on the wall-attached anchor plate is arranged on the base framework. The locking mechanism comprises a threaded shaft seat which rotates on the base framework in a fixed-axis mode, positive pressure seats used for being connected with the wall-attached anchor plate in an abutting mode are arranged on the two horizontal sides of the base framework, and a positive pressure assembly which drives the positive pressure seats to extrude the wall-attached anchor plate according to the deflection degree of the threaded shaft seat is arranged on the base framework. By arranging the locking mechanism, part of gravity of the creeping formwork frame body can be converted into active pressing force of the positive pressure seat on the wall-attached anchor plate, stabilizing moment generated by the pressing force can directly and effectively offset overturning moment generated by inclining a wall surface, and stress concentration and potential failure risks of bolts are avoided.

The invention belongs to the technical field of elastic structure design, and particularly relates to a torsion energy storage device for wing folding. The device comprises a supporting seat, a torsion energy storage spring and a connecting joint, the torsion energy storage spring comprises an outer cylinder and an inner cylinder, the outer cylinder and the inner cylinder are connected through a plurality of spring plates, the outer cylinder is connected with a folding shaft of a wing through a connector at the first end of the torsion energy storage spring, and the inner cylinder is connected with a supporting structure through a supporting seat at the second end, opposite to the first end, of the torsion energy storage spring. Part of recycled gravitational potential energy is utilized, the power requirement for a driving system is reduced, the size and weight of a driver are reduced, and meanwhile vibration impact at the moment of wing flattening is relieved.

The utility model provides a power assisting device for a top rod of a stair-climbing trolley, which relates to the technical field of stair-climbing trolleys and comprises a frame, one end of the frame is a resistance end, the other end of the frame is a force application end, the frame is provided with a loading end, a stair-climbing wheel set, a fulcrum rotating shaft and a handle, the loading end and the stair-climbing wheel set are arranged at the resistance end, the handle is arranged at the force application end, and the fulcrum rotating shaft is arranged at the force application end. The supporting point rotating shaft is arranged at the force application end, the supporting point rotating shaft is arranged between the resistance end and the force application end, and an ejector rod used for abutting against stair steps is hinged to the supporting point rotating shaft. Compared with an existing stair-climbing vehicle which needs to overcome all the gravity of the vehicle frame and the cargos to drag and climb stairs, the stair-climbing vehicle is more labor-saving, and a user only needs to overcome part of the gravity of the vehicle frame and the cargos to achieve stair-climbing transportation.

The invention belongs to the technical field of mine hoists, and provides a mine hoist capable of reducing wear of a lifting rope and a control method.The mine hoist comprises a hoisting component, a hoisting component, a hoisting component and a hoisting component, the hoisting component comprises a main machine assembly and a guide wheel assembly, and the guide wheel assembly provides guiding and limiting effects for retraction and release of the main machine assembly; through the arrangement and cooperative use of the lifting component and the carrying component, the collaborative design of the lifting component and the carrying component effectively reduces the wear of the lifting rope. A main machine assembly in the lifting component adopts a double-row retractable lifting main machine, stress of a lifting cable is balanced through symmetrical arrangement, and single-point excessive friction is avoided. The carrying component is self-adaptively configured according to the tunnel environment: for a chute, the first lifting cage assembly adjusts the inclination angle of a first cage through a regulation and control base, so that part of gravity is dispersed to a limiting sliding strip and a pulley, and the direct pulling force for lifting a mooring rope is reduced; for the vertical channel, the second lifting cage assembly is connected with the cable in an S shape through a plurality of limiting idler wheels in the lifting piece, the cable stress is dispersed, and local abrasion is reduced.

The utility model discloses an energy-saving sugarcane seed cutting machine which solves the problems that an existing sugarcane seed cutting machine is large in energy consumption and high in maintenance cost and better meets the requirements of a standardized processing production line of healthy sugarcane seed stems. The sugarcane seed cutting machine comprises a machine shell, a hinged plate, a rotating motor, a cutter and a telescopic air cylinder, the cutter and the rotating motor are installed on the hinged plate hinged to the upper portion of the machine shell, the telescopic air cylinder drives the hinged plate and the cutter to swing, and therefore straw chopper type sugarcane cutting is achieved. Part of gravity of the cutter and the rotating motor can be converted into cutting force for cutting the sugarcane, so that the sugarcane stem can be quickly cut off, and the energy consumption can be saved; meanwhile, the hinged plate is hinged to the upper portion of the machine shell, and compared with an original mode that a hinged rotating shaft of the hinged plate is installed on the lower portion of the machine shell, bagasse and sugarcane juice generated by sugarcane cutting cannot be splashed or stacked on the hinged rotating shaft of the hinged plate, rotating resistance of the hinged plate cannot be increased, and faults are not prone to occurring.

The present application relates to the technical field of goods transfer, in particular to an energy recovery type rail type warehouse goods loading and unloading transfer device. It comprises an I-shaped rail laid on the top of a base, an I-shaped rail top rollingly adheres to a rail car, the top of the rail car is fixedly connected with a mounting base; the top of the mounting base is provided with a load bearing plate with adjustable spacing from itself, and the two sides of the rail car are fixedly connected with a generator moving synchronously with itself; the load bearing plate receives heavy objects at a high position to store gravitational potential energy, the heavy objects drive the load bearing plate to slide down along the surfaces of the first connecting rod and the second connecting rod, the spring is synchronously compressed to convert part of the gravitational potential energy into elastic potential energy, buffer and stabilize the descending speed of the load bearing plate, and avoid the sudden increase of the rotating speed of the generator driving wheel; the load bearing plate drives the driving rack to slide downward when descending, the driving rack meshes with the driving gear to rotate, and then drives the generator driving wheel to rotate to generate electricity, and converts the gravitational potential energy into electrical energy and stores it.

The utility model discloses a paper pulp molding buffer piece structure which comprises a support, communicating grooves are formed in the left side and the right side of the outer surface of the support respectively, placing grooves are formed in the inner sides of the communicating grooves, positioning grooves are formed in the four corners of the upper surface of the support respectively, and four positioning embedding blocks are fixedly connected to the four corners of the lower surface of the support respectively. The lower surface of the support is fixedly connected with a clamping block. The positioning embedded blocks are tightly embedded into the positioning grooves, part of gravity of the upper-layer support is borne, force is evenly transmitted to the lower-layer support, unstable stacking caused by uneven stress is avoided, the risk that the support collapses or deforms can be effectively reduced no matter the support is stored in a static mode or bears certain external force, and the stability of the support is improved. And the communicating grooves formed in the left side and the right side of the outer surface of the support communicate with the containing grooves in the inner side, and convenience is provided for observing the state of the workpiece.