74results about How to "Increase shock load" patented technology

The invention relates to a transmission arrangement for controlling a force of a translation, the transmission arrangement comprising a drive collar (13) connectable to a translative drive means (11) and prevented from rotating with respect to a ground (12) of the drive means (11), a flange face of the drive collar (13) bearing against a mating flange face of a friction collar (20), the friction collar (20) slidable in longitudinal direction and rotationally constrained by engagement in a cam track (12.3), another flange face of the friction collar (20) bearing against a mating flange face of a plunger (8), the plunger (8) slidable in longitudinal direction and prevented from rotating.

The present invention relates to a concrete agitator truck with a lift system and a long life, which is capable of realizing unloading at different slope angles, preventing the agitator drum and subframe from jumping during the running process of the vehicle, and being used for a plurality of operating conditions. The concrete agitator truck with a lift system comprises a chassis, a subframe and a agitator drum supported on the subframe, wherein the tail part of the subframe is hinged with the tail part of the chassis, the front end of the subframe is provided with the lift system which comprises a lift oil cylinder and an oil cylinder support which is arranged on the chassis, the lift oil cylinder is hinged with the oil cylinder support at one end and is hinged with the subframe at the other end.

Downhole drilling tools designed and manufactured to minimize or reduce imbalance forces and wear by disposing cutting elements in cutter groups and cutter sets in a level of force balance and by placing impact and/or wear resistant cutters on blades subject to high impact forces and/or large loadings. Manufacturing costs may be reduced by placing inexpensive cutters on blades not subject to high impact forces and/or loadings. Some embodiments comprise designing downhole tools with combinations of thicker blades to receive high impact forces and/or loadings with thinner blades. Some embodiments comprise designing downhole drilling tools with optimized fluid-flow properties. Designing methods may comprise performing simulations on a designed tool, evaluating respective forces acting on cutters during simulated engagement with a downhole (uniform and transitional) and/or evaluating wear on cutters and bit, and/or CFD simulations to evaluate fluid-flow optimization on a tool. Various cutter layout procedures and algorithms are described.

A bumper/muffler assembly is provided comprising a bumper; and a muffler having an outer shell. The outer shell may be formed from a non-high impact resistant material, such as a thin metal or a composite material. The muffler may comprise a separate element from the bumper, which is coupled thereto, or is formed as an integral part of the bumper.

A treadmill including a frame, an endless belt having an upwardly-exposed exercise section, a deck disposed underneath the exercise section of the belt, and a cushion assembly positioned between the deck and the frame for providing cushion in order to reduce high impact loads on the user's body. The cushion assembly comprises a lever having a first portion that is operably coupled to the deck and a second portion that is rotatably coupled to the frame. The cushion assembly also comprises a resilient member coupled to both the lever and the frame so that the resilient member resists rotation of the lever as the lever is rotated. The elastic deformation of the resilient member provides resistance to displacement of the deck and therefore creates a cushion effect on the user's feet, ankles and knees as the user's feet contact the belt.

This invention relates to a stationary friction-type descent control device for use with an anchored rope and a load supporting harness characterized by a block of metal having several channels spaced by furrows providing benefit of friction and a rotatably fixed mandrel having the simultaneous purpose of first slowing the advancement of rope by friction and secondly by means of said friction causing rotation of the mandrel shaft whereby a cam action impinges upon an advanced section of channeled rope providing yet additional benefit of friction; and with a detachable plate to provide simple access to the channels for sinuously installing an unloaded medial section of rope and with the plate reattached and maintained in place by means of a carabiner positioned through aligned slotted openings in the block and plate a person may descend a rope at a governed rate of speed

Disclosed is a tower earthworm bio-filter system, which is composed of a hydrolysis acidification tank and a multi-stage tower earthworm bio-filter. The hydrolysis acidification tank is a buried tank, the tower earthworm bio-filter employs modes of a modular structure, a gradient tower layer design and multistage units in series connection, and tower layers employ mode combination of a stair type or a rotary type. Inner water distributors are additionally arranged inside an earthworm bed for uniformly distributing water. The drop-aeration technique and the water spray technique are employed to increase the concentration of dissolved oxygen in sewage. The tower earthworm bio-filter system can effectively increase impact load to the sewage, and the surface hydraulic load can reach up to 1m3/ (m2,d). Capability of denitrification and dephosphorization of the system can be largely increased, total nitrogen removal efficiency of the system can be higher than 80% as tested, the total phosphorous removal efficiency can be more than 90%, and discharged water can meet the qualifications of GB8978-1996 national sewage discharge standard. The system is low in project and operation costs and less in accommodation area, can realize automatically controlling of operation, and is adaptable to domestic sewage treatment of relatively concentrated discharge at towns and villages and scenic spots.

An assembly for dissipating energy generated by a force applied to an article fixed to a ground surface, the assembly comprising at least one expandable member having a first part which is fastened to the ground surface, at least a second part fixed to said device, the expandable member including means to enable expansion along at least one dimension in response to an impact load applied to the article to which the member is attached; the expansion of the expandable member allowing dissipation of energy generated by a loading to the article; thereby restraining the device from complete separation from fastening said at least one bracket.

A composite blast door, when used as an exterior door of a protected structure, can significantly decrease the risk of life threatening hazards to interior occupants. The composite blast door is composed of outer sheets of steel, intermediate sheets of fiber reinforced polymers (FRP), and a filled core of vaporized aluminum. Rubber gaskets may be used as a buffer layer between the FRP and vaporized aluminum core. Fabrication begins with a door skeleton created from steel framing elements, either hollow structural steel members or channels. Afterwards, the rear panels are attached to the door skeleton in inward order: beginning with the outer steel plate, then the FRP sheet and lastly the optional rubber gasket. The door can now be used as a form to receive the vaporized aluminum filling. After filling, the front panels are attached in the reverse order as the rear panels; rubber first, then FRP, then steel.

The present invention discloses a novel membrane aerated anaerobic granular sludge reactor, belonging to the technical field of wastewater treatment. The reactor solves the problems of low solubility of gas substances in an aqueous solution, large gas-liquid mass transfer resistance and low mass transfer rate. The top of a reactor body is provided with a water outlet, and the middle side wall of the reactor body is provided with a middle water outlet; the middle water outlet of the reactor body is connected with a water inlet of a membrane module; a water outlet of the membrane module is connected with a bottom water inlet of the reactor body through a circulating pump, a water inlet is connected with the bottom water inlet of the reactor body through a feed pump, a high pressure gas cylinder outputs high pressure gas to the membrane module, and a gas pressure regulating valve is arranged between the high pressure gas cylinder and the membrane module. The novel membrane aerated anaerobic granular sludge reactor improves the content of a gas substrate therein, and shortens the formation time of granular sludge. The method for efficient nitrogen removal and greenhouse gas mitigation has higher nitrate and ammonia removal rates and a higher dissolved methane removal rate within a shorter time.

A multi-barreled shotgun barrel assembly construction, which breaks down barrel components into a Muzzle Block, Extended Chopper Block, and Barrel Tubes that join the two blocks enabling precise alignment to direct shot to a desired point of impact.

A battery housing unit with a releasable cover for minimizing mis-alignment of a battery housed therein during high impact loads. The battery unit includes a battery holder having retention members biased towards one another that receive a battery. The retention members engage stop ribs projecting from the cover. The cover fits over the retention members of the battery holder and to a base of the housing unit. The retention members and stop ribs are engaged when high impact loads are delivered to the housing unit and the battery is urged against the biasing nature of the retention members. Movement and mis-alignment of the battery is thus minimized and high impact loads are re-distributed throughout the cover. Detents may be provided on each retention member for engaging a corresponding cavity provided on each stop rib. The detents and cavities interlock the retention members and stop ribs together upon high impact. In this manner, movement and mis-alignment of the battery is also minimized.

The invention discloses a high-performance fiber fabric and foam based flexible protection structure. The flexible protection structure includes a buffer screen, foams, filling screens and a back wall; the buffer screen is used for breaking space debris; the foams are used for adjusting the compression amount or the swelling amount of the protection structure; the filling screens are used for disintegrating space debris cloud; the back wall is used for capturing the space debris cloud; andthe buffer screen, the foams, the filling screens, and the back wall are successively glued through an adhesive. The flexible protection structure can be folded and compressed through the filling screens, is easy to launch, and can make up the defect of low reliability of the conventional protection structures; and the protection spacing of the flexible protection structure can break through a space limit of a rocket fairing through the foams, the protection ability of the flexible protection structure is significantly enhanced, and the problem that the conventional protection structures are much in energy consumption and are poor in environment suitability.

A vehicle-loading structure of a battery pack is provided. A battery pack is fastened and connected to a side frame via an attachment bracket that is capable of securing and supporting the battery pack. The attachment bracket has an interference portion that is configured to interfere with a gusset when the battery pack moves in a vehicle forward direction caused by the disconnection of the attachment bracket from the side frame due to a shock applied to a vehicle. The interference portion of the attachment bracket interferes with the gusset, so that the battery pack can be supported by the gusset.

The invention discloses high-chromium cast iron for a wear-resisting grinding ball and a preparation method of the high-chromium cast iron, and relates to the technical field of wear-resisting grinding balls. The high-chromium cast iron comprises the following components of, in percentage by weight, 2.3%-3.0% of C, 0.5%-1.0% of Si, 0.4%-1.0% of Mn, 16%-20% of Cr, 0.3%-0.6% of Mo, 0.4%-0.8% of Ni,0.02%-0.08% of V, 0.05%-0.1% of B, 0.1%-0.2% of Nb, 0.01%-0.1% of Re, less than or equal to 0.03% of S, less than or equal to 0.03% of P, and the balance of Fe. According to the high-chromium cast iron, the contents of the chemical components in the high-chromium cast iron are reasonably adjusted, and the quenching stress is effectively eliminated by controlling the chromium-carbon ratio and the heat treatment process; a prepared grinding ball is high in impact load, and the hardness, the impact toughness and the wear-resisting property of the cast ball can be well balanced, so that the phenomena that in early stage, the surface of the cast ball is easy to be peeled, the broken ball rate is high and the like are improved; and the prepared grinding ball is high in impact load, and can meetthe use requirements of large-scale ball grinders in the industry of cement, mines, electric power and the like.

The invention provides a viscous material conveying pipe supporting device which comprises a fixed supporting part and a conveying pipe mounting part (1). The fixed supporting part comprises a fixed section (3) and a supporting section (2), the conveying pipe mounting part (1) is connected on the supporting section (2), a deflection enhancement structure is formed on the supporting section (2) and characterized in that a bend with at least two inflection points is formed on the supporting section (2), the inflection points are basically positioned in the same plane, or the size of the cross section of the supporting section (2) along a first direction is the largest, the size of the cross section of the supporting section (2) along a second direction is the smallest, and the first direction is perpendicular to the section direction. In addition, the invention further provides a viscous material conveying pipe supporting structure and concrete conveying machinery. The viscous material conveying pipe supporting device has a more reasonable and scientific stress structure according to the stress principle in the material conveying process of a viscous material conveying pipe, so that stress concentration is avoided, and the service life of the conveying pipe supporting structure is prolonged.

The invention discloses a key-connection combined vertical roll and belongs to the technical field of rolls. The key-connection combined vertical roll comprises a roll shaft and a roll sleeve. The roll sleeve is connected to the outer circumference of the middle of the roll shaft through a key in a matched mode. By adoption of the key-connection combined vertical roll, the problem that the difference between the diameter of a roll body and the diameter of a roll neck of the vertical roll is large, the overall casting gross-to-net ratio is large, and consequentially the production cost is high is solved, the production cost is greatly lowered, the centring performance is good, and the bearing capacity is high.

The invention relates to the technical field of preparation of tubes, in particular to a preparation method of a flame retardant flexible heat-shrinkable tube. The preparation method comprises the following steps: mixing phragmites australis powder, organic modified hydrotalcite and ethyl acetate to obtain wood stone fibers; putting high density polyethylene masterbatch particles into a rubber refining machine for smelting and doping the wood stone fibers to obtain a rubber compound; transferring the rubber compound to an internal mixer and doping an ethylene-vinyl acetate copolymer for treatment to obtain the flame retardant flexible heat-shrinkable tube. The lignin is adsorbed to the fiber surface and in pores, so that an interfacial binding force between wood fibers and polyethylene isenhanced and further the heat-shrinkable tube becomes soft and resilient; the magnesium aluminum hydrotalcite is enabled to lose interlayer water molecules and interlayer anions and a dehydroxylationreaction is initiated in the combustion process of the heat-shrinkable tube, so as to play a role of protecting polymers and isolating air and further improve the flame retardant property of the heat-shrinkable tube. The broad application prospect is achieved.

The present invention relates to a kind of built-in movable pallet for containers, including the rectangular chassis with several rollers at the bottom. Several guiding mechanisms are set at both sides and the corners of front edge of the above-mentioned chassis; guiding mechanisms are guide roller structures; outer peripheral surface of guiding rollers protrudes to side edge of the chassis; locking mechanisms are installed at the two corners at rear edge of the chassis. In this invention, guide rollers are installed at two sides and the corners of front edge, so that the sliding friction with high resistance is converted into rolling friction with low resistance. While loading, outer peripheral surface of the guide rollers at corners of front edge contacts the firm doorframe of the container firstly, so relative parallel position of the pallet and the container is adjusted properly and basically; while further pushing, the relative position between the pallet and the container may be adjusted adaptively by guide rollers at sides, so as to prevent wall of the container from being crashed and even cut and protect the container effectively; the locking hook at corners of rear edge is reasonable structure, convenient for use and can be locked reliably.