52results about How to "Avoid shearing" patented technology

The invention discloses a vapor chamber having support posts with an inner-sintering structure. The vapor chamber is characterized in that: upper cover plate sintering capillary wicks and lower cover plate sintering capillary wicks are arranged in a cavity between an upper cover plate and a lower cover plate, a plurality of support posts and a plurality of stress absorption rings having a sinking structure are distributed at the inner bottom of the lower cover plate, the upper cover plate sintering capillary wicks and the lower cover plate sintering capillary wicks are provided with a plurality of mounting holes through which the support posts penetrate; and a plurality of bosses which are naturally formed during sintering, and correspondingly matched with sinking positions of the stress absorption rings are distributed on the lower surface of the lower cover plate sintering capillary wicks. The vapor chamber has the advantages that: the stress absorption rings of the vapor chamber can effectively absorb deformation; the regional support post distribution eliminates the influence of the support posts on the enhanced boiling structure of the lower cover plate; capillary porosity wicks in the support posts shorten the refluxing path of liquid working medium in condensing section, separate raising vapor generated by enhanced boiling and reflux falling liquid working medium in the vapor chamber, avoid a shearing effect generated by the contact between a vapor interface and a liquid working medium interface and improve heat-transfer capability.

The invention discloses a glue spraying device. The glue spraying device comprises a cam, wherein the cam is connected with the left end of a sliding rod switch; the right side of the sliding rod switch is connected with a compression spring; under the combined action of the cam and the compression spring, the reciprocating rectilinear movement of the sliding rod switch is controlled; the sliding rod switch is movably arranged in a glue cylinder; an upper channel is formed in the upper part of the glue cylinder, and a lower channel is formed in the lower part of the glue cylinder; the sliding rod switch is movably arranged between the upper channel and the lower channel; in the reciprocating rectilinear movement process of the sliding rod switch, when a connecting hole of the sliding rod switch directly faces the upper channel and the lower channel, the connecting hole connects the upper channel with the lower channel, so that glue spraying is realized; when the sliding rod switch moves for a certain distance, the connecting hole of the sliding rod switch is staggered from the upper channel and the lower channel, the upper channel is disconnected from the lower channel, and glue spraying is stopped. A complicated rotary mechanism is replaced by a simple rectilinear mechanism. Due to the fact that the rectilinear movement distance is quite small and produced heat is quite small, a cooling device does not need to be used, so that energy is saved. The invention further discloses a glue spraying method.

The invention provides an automobile tailboard, and belongs to the technical field of unloading equipment, and solves the problem that in the prior art the automobile tailboard cannot meet the strength requirement and light weight design simultaneously. The automobile tailboard with the improved structure comprises a base board and a surface board. The surface board covers the base board and is fixedly connected with the base board. The automobile tailboard is characterized in that several reinforcing horizontal boards and several reinforcing longitudinal boards are integrally molded on the upper surface of the base board. Both the reinforcing horizontal boards and reinforcing longitudinal boards are in flattened strip shapes and are perpendicularly arranged with the surface board. The reinforcing horizontal boards and reinforcing longitudinal boards crisscross with each other to form several filling convex cavities. Each filling convex is filled with plastic filler. The automobile tailboard can achieve the light weight design of the tailboard on the precondition of meeting the strength requirement.

The invention discloses a reactor for realizing static culture and continuous growth of aerobic filamentous biofilm, which comprises a feed tank, a peristaltic pump, an aeration pump, a gas flow meter, a reaction tank, a carrier bracket, an upper partition, an upper conduit, Vessel carrier, lower baffle, downcomer, support, microporous aeration tube, enclosure; the gas pumped by the present invention enters the microporous aeration tube through the adjustment of the gas flow meter to form air bubbles, enclosure and support The bubbles are gathered, and the bubbles pass through the hollow channel formed by the downcomer, the vascular carrier, and the upper catheter, which promotes and drives the waste water to flow upward through the inside of the vascular carrier, avoiding the direct impact of the air bubbles and waste water on the aerobic filamentous biofilm, and realizing the reactor The aerobic filamentous biofilm in the vascular carrier obtains oxygen and nutrients from the inside of the vascular carrier, thereby avoiding the aging and death of the filamentous biofilm close to the vascular carrier in the reactor due to hypoxia and nutrition, and solving the problem of filamentous The problem of complete detachment of biofilms from vascular supports.

The invention discloses an efficient coal underground gasifier and a construction method thereof. The efficient coal underground gasifier includes an igniting channel, a gas collection channel, gas inlet channels, and a gas outlet channel that are arranged at a quadrilateral coal layer block, the horizontal distance of the gas outlet channel at the edge of the quadrilateral coal layer block from the gas collection channel is more than 10m, a backward combustion method is adopted to expand the cross section of the gas collection channel to be more than 2*2m<2>, and the plurality of gas inlet channels spacing at a certain distance are communicated with the expanded gas collection channel at the lower side to realize gas collection; and when the fire zone working face in the gas collection channel retreats to the vicinity of an outlet hole, the fracturing and reverse fire penetration combustion are carried out at the hole to communicate the gas outlet channel and the gas collection channel. The efficient coal underground gasifier can realize the parallel gasification of the plurality of gas inlet channels, so that the productivity of the gasifier is improved. By means of the methods of backward combustion and reverse penetration, the construction period of the gasifier is shortened. A gas outlet system consisting of vertical boreholes is arranged outside the stress concentration zone to improve the stability of the gas outlet system.

The invention discloses a loading device for a supporting rod of a spiral propeller of a double-in and double-out steel-ball coal mill. The loading device comprises a supporting rod, wherein a spring seat is movably arranged on the supporting rod in a sheathed manner, and the spring seat and a spring seat cover form a cavity body; a spring, a spring upper-pressing sleeve and a spring lower-pressing sleeve are positioned in the cavity body; the fixing between the spring lower-pressing sleeve and the supporting rod is realized by a locking nut; and a thread hole is formed in the lower end surface of the supporting rod and is used for connecting a loading screw rod of a hydraulic pre-loading device. The loading device disclosed by the invention has the advantages that the supporting rod can move axially by extension or compression of the spring so as to compensate the displacement of a substrate and maintain jacking force; and simultaneously, the supporting rod can deflect by a certain angle so as to compensate manufacture and installation errors. The invention also discloses a hydraulic pre-loading device.