Sealed piece wearing and tearing volume measuring device of hydraulic turbine static pressure self -balancing axial work

The utility model discloses a sealed piece wearing and tearing volume measuring device of hydraulic turbine static pressure self -balancing axial work, it is including sealed piece, install the ring that floats on the sealed piece, it is connected with unsteady bottom plate to float to encircle, install unsteady measuring staff on the unsteady bottom plate, the pointer seat is installed at the top of unsteady measuring staff, there is the pointer through bolted connection on the pointer seat, the support ring is installed under on the apron, static pedestal mounting is on the support ring, scale rod fixed mounting is on static base, the scale passes through the scale pedestal mounting on scale rod. These wearing and tearing measuring device adopts the measurement mode of mechanical type, can measurement promptly and accurately arrive the wearing and tearing condition of sealing the piece to dynamic demonstration can the volume of measuring wearing and tearing from the scale on the scale ...

Steering brake valve for 520- horsepower soil shifter

The invention discloses a steering brake valve for a 520 horsepower soil shifter, which is characterized in that: the valve is a combined valve integrating two steering valves arranged left and right, two brake valves arranged left and right and a self-locking valve; the steering valves, brake valves and self-locking valve are integrated in a valve body I with an inside oil way; the valve body I is connected with a valve body II through a bolt I and a sealing gasket III, and is connected with a valve body III through a bolt II, a plate, a sealing gasket I and a sealing gasket II; the valve body III is provided with a brake connecting rod mechanism and a steering connecting rod mechanism which is connected with a top rod I of the steering valve through an eccentric block thereon in a free way; the brake connecting rod mechanism is connected with top rods of the brake valves in a free way; the valve body II is provided with a self-locking connecting rod mechanism and connected with an unidirectional ...

Using method of self-pumping type self-adjusting circulating sealing system

The invention discloses a using method of a self-pumping type self-adjusting circulating sealing system. The self-pumping type self-adjusting circulating sealing system comprises a sealing mechanism body, and the sealing mechanism body is connected to the outer surface of a rotating shaft in a sleeving mode; the sealing mechanism body comprises a hollow oil groove, and the upper surface of the oil groove is connected with a hollow vortex sealing cavity. An impeller is arranged in the vortex sealing cavity and is connected to the side surface of the rotating shaft; one end of the outlet pipeline is communicated with a condensing device, and the other end of the condensing device is connected with the interior of the oil tank through a pipeline. According to the system, the rotating shaft rotates to drive the impeller to rotate, sealing air pressure flow is formed through the upper blades, centrifugal force generated by the lower blades sucks out oil mist in the lower oil groove and conveys ...

Construction method for repairing scraped stone wall surface of historical building

The invention discloses a construction method for repairing a scraped stone wall surface of a historical building. The method comprises the following steps: S1, detecting a wall surface and removing a hollowing wall skin; s2, cleaning, flattening and repairing are carried out, cement lime mortar is smeared, leveling is carried out, a bottom layer is formed, and the thickness of the bottom layer is 8-10 mm; s3, neat cement paste is smeared, and the thickness of the neat cement paste is 0.8-1.2 mm; the cement limestone mortar is prepared from 0.5 part of grey cement, 1.0 part of white cement, 0.5 part of lime, 4 parts of pebbles, 2 parts of medium sand and 0.6 part of water, the diameter of the pebbles is 3-5 mm, the thickness of the cement limestone mortar is 10-12 mm, and the pebbles are scraped and modified to obtain the pebbles wall surface. According to the method, historical materials and components are reserved to the maximum extent, hollowing, crisp powder, falling, dust and smoke ...

Steering brake valve for 520- horsepower soil shifter

The invention discloses a steering brake valve for a 520 horsepower soil shifter, which is characterized in that: the valve is a combined valve integrating two steering valves arranged left and right, two brake valves arranged left and right and a self-locking valve; the steering valves, brake valves and self-locking valve are integrated in a valve body I with an inside oil way; the valve body I is connected with a valve body II through a bolt I and a sealing gasket III, and is connected with a valve body III through a bolt II, a plate, a sealing gasket I and a sealing gasket II; the valve body III is provided with a brake connecting rod mechanism and a steering connecting rod mechanism which is connected with a top rod I of the steering valve through an eccentric block thereon in a free way; the brake connecting rod mechanism is connected with top rods of the brake valves in a free way; the valve body II is provided with a self-locking connecting rod mechanism and connected with an unidirectional ...

VERNIER TYPE MULTIPURPOSE DRAFTING INSTRUMENT

Cleaning and repairing method for building wall surface

The invention discloses a cleaning and repairing method for a building wall surface. The cleaning and repairing method comprises the following steps: S1, cleaning stains on a surface layer; s2, desalting the wall surface by using a pasty material; s3, repairing holes, cracks or surfaces of the wall stone; and S4, jointing gaps among the wall surface stones, and then integrally curtain-coating a water repellent. The inorganic grouting material and the surface layer repairing material with specific components are adopted for repairing holes, cracks, surface layers and the like of the wall surface stone, stone diseases are scientifically treated, the original truth of a building is guaranteed, and reversibility and readability are achieved.

Large-span roof structure

The large-span roof structure comprises a curved wood beam, and the two ends of the curved wood beam are fixed to a concrete foundation; the curved wood beam comprises a plurality of curved woods which are spliced in sequence, and a splicing structure is arranged between every two adjacent curved woods; the laminated wood beam comprises a plurality of laminated woods which are in butt joint in sequence, every two adjacent laminated woods are connected through a butt joint piece, each butt joint piece comprises a butt joint plate, a first inserting plate is arranged on one side of each butt joint plate, and a second inserting plate is arranged on the other side of each butt joint plate; the two adjacent pieces of laminated wood are provided with inserting grooves matched with the first inserting plate and the second inserting plate respectively. The large-span roof is stable and reliable in structure, high in bearing capacity and high in stability. And the curved wood and the laminated wood ...

Vernier type multipurpose draught instrument

Environment-friendly energy-saving generator

The invention relates to an environment-friendly energy-saving generator, in particular to a device which converts the elastic potential energy of springs into mechanical energy and finally into electrical energy. The invention aims to convert the elastic potential energy of the springs into the mechanical energy and finally into the electrical energy, and has the biggest characteristics of environmental friendliness and energy saving. The invention is realized by comprising the following steps of: tightening two springs (spiral springs) to ensure that the springs have certain elastic potential energy, using the elastic potential energy of the two springs to drive two speed acceleration gear sets to rotate so as to convert the elastic potential energy into the mechanical energy, and then driving a generator rotor by the gear sets, thereby achieving the goal of converting the mechanical energy into the electrical energy. In the invention, the elastic potential energy of the springs is fully ...