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36results about How to "Reduce construction length" patented technology

In-place heat regeneration integrated machine for bituminous pavements and control method

The invention provides an in-place heat regeneration integrated machine for bituminous pavements and a control method, wherein the in-place heat regeneration integrated machine for bituminous pavements integrates the functions of pavement milling-planing, bituminous mixture heating, remixing and the like. The regeneration integrated machine comprises a chassis, a milling-planing device, a conveyor, a conveyor heating device, an agitating pan, agitating pan heating devices, and a control system, wherein the conveyor is located behind the milling-planing device, the conveyor heating device is located above the conveyor, the agitating pan heating device is arranged at the top of the agitating pan, and the control system is used for controlling the travelling speed of the chassis, the heating temperature, the mixture metering and the agitating time of the agitating pan. The control method comprises the following steps: starting to accumulate travelling pulses, and if a required travelling distance reaches, switching a material distribution board to the other side; if the material distribution board is overturned, opening an agitating cylinder on the other side, discharging for a period of time, and waiting for the next switching of the material distribution board; and repeating the steps until the machine stops working.
Owner:SHANDONG LUQIAO GROUP

Dual clutch transmission

The invention relates to a dual clutch transmission comprising two clutches (K1, K2) the input sides of which are connected to an input shaft (w_an) and the output sides of which are connected to one of two transmission input shafts (w_K1, w_K2) that are arranged coaxially relative each other; at least two countershafts (w_countershaft1, w_countershaft2) on which toothed gearwheels, configured asidler gears (01, 02, 03, 04, 05, 06, 07, 08), are rotatably received; toothed gearwheels that are non-rotatably arranged on the two transmission input shafts (w_K1, w_K2), that are configured as fixed gears (12, 13, 14, 15, 16) and that engage at least partially with the idler gears (01, 02, 03, 04, 05, 06, 07, 08); a plurality of coupling devices (A-B, C-D, F-G, E, H, F) for the non-rotatable connection of an idler gear (01, 02, 03, 04, 05, 06, 07) to a countershaft (w_countershaft1, w_countershaft2) and respective pairs of power take-off gears (09, 10) mounted on the two countershafts (w_countershaft1, w_countershaft2), said pairs of power take-off gears being coupled to a toothed section of a power take-off shaft (w_ab); and at least one shift element (L) for coupling the two transmission input shafts (w_K1, w_K2), at least seven power-shifted forward gears (1, 2, 3, 4, 5, 6, 7) and at least one reverse gear (RA1, R1) being shiftable. The dual clutch transmission is characterized in that five gear planes (01-12, 01-06; 02-06, 02-07; 03-07, 03-14, 03-08; 04-15, 04-08; 05-16) are arranged in such a manner that at least one power-shifted winding path gear can be shifted via at least one shift element (L, M).
Owner:ZF FRIEDRICHSHAFEN AG

Railway vehicle and train

The invention provides a railway vehicle and a train. The railway vehicle comprises a brake system, and further comprises a carriage, a left-side support, a right-side support, at least one left-side walking portion and at least one right-side walking portion, wherein the carriage comprises a left carriage wall and a right carriage wall and is used for containing people or goods; the left-side support is located on the left side of the left carriage wall and connected with the left carriage wall through at least one left-side lifting mechanism to enable the carriage to lift along the left-side support; the right-side support is located on the right side of the right carriage wall and connected with the right carriage wall through at least one right-side lifting mechanism to enable the carriage to lift along the right-side support; the left-side walking portion is provided with the left-side support; the right-side walking portion is provided with the right-side support; the brake system is used for braking the left-side walking portion and the right-side walking portion; each walking portion comprises a walking frame and at least two metal wheels installed on the walking frame to enable the railway vehicle to be suitable for running on a railway; the railway vehicle is in an inverted U shape in the running direction so as to allow other vehicles to pass through from the position below the carriage.
Owner:张迪

Diversion drainage structure for tunnel inside in water conservancy and hydropower project and construction method of diversion drainage structure

The invention discloses a diversion drainage structure for a tunnel inside in a water conservancy and hydropower project and a construction method for building the diversion drainage structure, and belongs to the technical field of design and construction of buildings in the water conservancy and hydropower project. The invention provides the diversion drainage structure for the tunnel inside in the water conservancy and hydropower project and the construction of the building construction method. The diversion drainage structure for the tunnel inside in the water conservancy and hydropower project is short in construction period, low in construction investment cost and capable of meeting the requirement of upward moving of an opening of a diversion drainage tunnel. The construction method includes that a section of a drainage tunnel is constructed on the upstream side of a drainage tunnel body in a river flow direction, a construction maintenance diversion tunnel which communicates the drainage tunnel and the drainage tunnel body is constructed before the drainage tunnel and the drainage tunnel body are communicated, the requirement for temporary diversion drainage of an upstream river channel is met, then the connection position of the drainage tunnel and the drainage tunnel body is completely broken through, a waste upper section of the drainage tunnel body is blocked, finally, simultaneous drainage of the drainage tunnel and the downstream section of the drainage tunnel body as well as the drainage tunnel, the construction maintenance diversion tunnel and the downstream section of the drainage tunnel body is realized.
Owner:POWERCHINA CHENGDU ENG

Multi-stage centrifugal pump (axial face seal)

An axial face seal (13), which seals a pump housing in the region of the pump shaft (12), is constructed in an axially compact manner. Spring holders (24, 25), which transmit the required pressing force of a compression spring (23), are connected to one another with a positive fit in a rotation direction, and hold a rotating axial face seal ring (19) in a rotationally fixed manner to the pump shaft (12). The spring holders (24, 25) are compact and enclose an abutment ring (33) for pump impellers as well as the compression spring (23). A motor-side spring (24) engages over the rotating axial face seal ring (19), by which an axially extremely short constructional length is achieved.
Owner:GRUNDFOS MANAGEMENT AS

Circular stockyard

The invention belongs to the field of storage and conveying facilities of bulk materials and relates to a circular stockyard. The circular stockyard comprises a sealed storage shed, a material feeding and piling system, a material taking and discharging system, storage cells, radial retaining walls and an annular retaining wall, wherein the inner side of the annular retaining wall forms the storage bin in an enclosed manner, and the outer side of the annular retaining wall and the radial retaining walls form the storage cells in an enclosed manner; a first annular rail is arranged on the annular retaining wall, a second annular rail is arranged at the outer edges of the radial retaining walls, a storage cell material taking frame is arranged on a gantry type frame between the first annular rail and the second annular rail, and the radial retaining walls and the annular retaining wall support each other. The circular stockyard has the advantages that the annular retaining wall structure has good space force transmission performance, a load bearing structure high in bearing capacity and large in rigidity can be formed by a small structural thickness, the stockyard structure can evidently reduce the length and thickness of the retaining walls, civil engineering cost is low, and the circular stockyard has extremely high engineering application value.
Owner:CISDI RES & DEV CO LTD

Drive-assisted vertical slot fishway structure and fish collection method

The invention discloses a driving assistance type vertical-seam fishway structure and a fish gathering method thereof. The driving assistance type vertical-seam fishway structure comprises a bottom plate, a side wall, multiple long separating plates, multiple short separating plates and multiple driving assistance platforms, wherein a fishway is divided into multiple pool chambers by the long separating plates and the short separating plates, and fish passing vertical seams are reserved between the long separating plates and the short separating plates; each driving assistance platform is formed by a J-shaped plate, an arc-shaped separating plate, a water outlet seam, a water supplementation seam and a small-sized wave generation machine, and arresting nets are arranged at the outer sides of the arc-shaped separating plates. According to the driving assistance type vertical-seam fishway structure disclosed by the invention, the water flow in the pool chambers and the fish passing situation in the positions of the fish passing vertical seams can be monitored in real time by cameras which are arranged in the long separating plates, images can be synchronously transmitted to a computer automatic control system for being analyzed, a command for regulating and controlling the frequency of the small-sized wave generation machine can be sent from the computer automatic control system to the small-sized wave generation machine, the water flow which is suitable for fish migration and the water sound which is capable of attracting fish to swim upstream can be formed in the corresponding pool chamber, the fish passing efficiency of a traditional vertical-seam fishway can be obviously increased, the influence on the fish migration caused by hydro-power and hydraulic engineering can be reduced, and the driving assistance type vertical-seam fishway structure is beneficial for ecological protection for a river.
Owner:嘉善永升五金厂

Construction device and construction method of self-adaptive post-tensioning prefabricated box girder

The invention discloses a construction device and a construction method for a prefabricated box girder by an adaptive post-tensioning method. The construction device comprises a fixed pedestal and two adjustable pedestals respectively arranged at both ends of the fixed pedestal. The adjustable pedestal comprises a pedestal foundation and an upper hinged pedestal. , the lower hinged pedestal, the pedestal translation track and the pedestal translation track, the pedestal translation track is set on the base of the pedestal, the lower hinged pedestal is movably set on the pedestal translation track, the upper hinged pedestal and the lower hinged pedestal are hinged through a hinge shaft, and the upper A locking component is also arranged between the hinged base and the lower hinged base to limit the relative rotation of the two, the base of the base is abutted against the fixed base, and the top surface of the upper hinged base is flat. Construction methods include pedestal installation, upper hinged pedestal positioning, formwork installation, concrete pouring, formwork removal and tensioning. The invention can ensure that the bottom of the beam is always in the state of surface contact and load before and after tensioning, and effectively solves the problems of stress concentration and cracking of the beam end concrete during the tensioning process.
Owner:CHINA RAILWAY 12TH BUREAU GRP +1
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