44results about How to "Guaranteed anti-deformation effect" patented technology

The invention provides a section-variable tunnel-crossing lining trolley which comprises a portal system, a template system, a connecting part and a walking mechanism, wherein the portal system comprises a frame part, a jacking mechanism and a bracket part; the jacking mechanism comprises multiple sets of jacking single pieces; each of the jacking single pieces comprises a multi-level jacking part; the bracket part comprises a truss girder and an adjusting support frame for a walking mechanism; the template system comprises a top template, a left template and a right template; and the connecting part comprises a support jack and a hydraulic cylinder. The section-variable tunnel-crossing lining trolley provided by the invention has the effects that the whole structure is simple; the assembling is convenient; the jacking mechanism is in a multi-level jacking mode; the trolley not only can adapt to the construction for the tunnel sections in different heights but also can achieve higher lifting volume; the trolley can meet the requirement of constructing multiple parallel tunnels by one trolley in the manner of constructing the working tunnel; due to the design of the bracket part, the lining trolley can meet the stability requirement, and meanwhile, the structure is simplified and the whole trolley can be supported.

The invention relates to a crystallizer for semi-continuous casting of aluminum alloy. A graphite lining is embedded in a cavity of a body; the body is provided with a water cavity; an upper cover is connected on the body, the bottom of the upper cover is provided with a lug boss, and the lug boss on the upper cover is matched with the water cavity of the body; the water cavity of the body is provided with two groups of cooling water holes, and the two groups of cooling water holes are distributed across; a filter is arranged in the water cavity of the body, and the upper end of the filter is fixed with the upper cover; and the bottom of the body is provided with a water inlet pipe head which is communicated with the filter. After the lug boss designed on the upper cover is assembled, the upper cover extends to the interior of the water cavity, so the crystallizer has good deformation resistance, and the service life of the whole crystallizer is prolonged; the water cavity is designed with the two groups of cooling water holes, and double rows of cross cooling water cool the ingots so as to increase watering points and cooling active regions of the cooling water on the ingots; and the filter ensures that the cooling water enters the cavity after filtering, and the filter can be directly detached on the upper cover, so the cleaning operation is simple and convenient.

The invention relates to a construction method for an assembled foundation pit support structure. A prefabricated reinforced concrete pile and a prefabricated box type component are mainly adopted. The prefabricated box type component comprises at least one standard piece. Trapezoid tenons 11 and trapezoid mortises 12 are formed in transverse and longitudinal connector positions of the standard pieces in a staggered manner. The prefabricated reinforced concrete pile comprises a front part 41, a rear part 42 and a pile head 43, wherein trapezoid tenons 412 and trapezoid mortises 413 are formed in the two sides of the front part in a staggered manner, and the tenons and the mortises of the prefabricated reinforced concrete pile and the tenons and the mortises of the prefabricated box type component are matched in size. A clamp support 421 used for supporting a prefabricated box type component located at the adjacent position is arranged at the position, close to the front part 41, of the rear part 42. After the whole support structure is spliced, compaction grouting is conducted on the position of a last anti-seepage grouting hole where the corresponding standard piece is arranged, and the anti-seepage grouting holes formed by the standard pieces and a pile body are fully filled with pulp from bottom to top. When it is observed that the pulp overflows out of an anti-seepage grouting hole channel of the top-layer standard piece, grouting is stopped.

The invention relates to a battery box concealed mounting structure for a Z-shaped vehicle beam pipe. The battery box concealed mounting structure comprises the vehicle beam pipe being of a hollow structure and is characterized in that the pipe wall at an end port of the vehicle beam pipe is fixedly connected with a connecting pipe, and a battery box mounting inlet is formed in the end port of thevehicle beam pipe; and a battery box is inserted and mounted from the battery box mounting inlet of the vehicle beam pipe, and a battery box mounting seat for supporting and being electrically connected with the battery box is mounted in the vehicle beam pipe. The battery box concealed mounting structure is scientific and reasonable in design, and inserting-type mounting of the battery box from the end port of the vehicle beam pipe can be achieved, so that integrity of the vehicle beam pipe is maintained, the strength and deformation resistance of the vehicle beam pipe are ensured, and the battery box concealed mounting structure has the advantages of being stable and reliable in structure and convenient to operate.

The invention discloses a shield tunnel segment lining structure of a stratum junction section and a design method. The shield tunnel segment lining structure comprises a junction section, conventional pipe sections are arranged on the two sides of the junction section, and the rigidity of a longitudinal joint bolt between every two adjacent segment rings on the junction section is higher than therigidity of each longitudinal joint bolt of the conventional pipe sections. The design method comprises the steps of establishing a longitudinal finite element numerical calculation model of a shieldtunnel, taking tunnel lining segments as concrete segments, and calculating the longitudinal sediment amount and the longitudinal deformation curve radius generated by the stratum junction section. According to the shield tunnel segment lining structure and the design method, the problem that in the prior art, the longitudinal deformation of a shield tunnel segment lining structure of the soft-hard stratum junction section is too large, the non-uniform stress is concentrated, and inter-ring longitudinal joints are damaged can be effectively solved.

The invention provides a key structure and a mobile terminal. The key structure comprises a key and a supporting part, wherein a conducive base is arranged on the inner side face of the key; the supporting part is positioned in the mobile terminal; the first end surface of the supporting part is in contact with the conductive base; the second end surface of the supporting part is in contact with a switch in the mobile terminal, wherein the midperpendicular of the first end surface and the midperpendicular of the second end plane are non-collinear. According to the technical scheme, the non-collinear conductive base and switch are connected together through the supporting part; the force on the conductive base is smoothly transmitted to the switch by the supporting part, so that the switch can be moved to a preset position to further switch on a switch circuit; and in addition, the supporting part is elastic and can enable the key to spring back rapidly, so that the user experience is improved.

The invention provides an air guide plate, an injection mold and a molding method. The method comprises the following steps: a molded air guide plate insert is positioned in a molding cavity of the injection mold through a magnetic sucking piece; and a molten air guide plate outer-layer material is injected in the molding cavity, so that the outer-layer material wraps the air guide plate insert to form the air guide plate. The air guide plate adopts a sandwich layer embedding form to replace a double-layer structure form of a conventional aluminum alloy air guide plate, can only occupy less internal space of the air guide plate under the condition of guaranteeing strength and deformation resistance of the air guide plate, reduces the whole thickness of the air guide plate, and reduces the shape volume of the air guide plate.

The invention discloses a high-toughness splitting-resistant carbon fiber composite wire core rod and a preparation method. The wire core rod is made of a plurality of kinds of fiber hybrid composite materials, wherein carbon fibers are adopted as main body reinforcing fibers. The wire core rod is composed of a rigid core, a flexible layer, an anti-splitting layer and a surface wear-resistant layer which are distributed from inside to outside sequentially; the rigid core is made of a high-performance carbon fiber composite material, so that the deformation resistance of the overall core rod can be ensured; the flexible layer is made of a glass fiber composite material, so that the toughness of the core rod can achieve winding of a certain curvature; the anti-splitting layer is made of a hybrid fiber helical winding structure, so that the splitting problem of the wire core rod in a winding process can be solved; and the surface wear-resistant layer is made of a carbon fiber surface felt or a two-dimensional braided high-performance fiber mixture, so that the surface wear-resistant characteristic of the wire core rod can be ensured, and the stability of the internal structural of the wire core rod can be effectively protected. With the multi-layer structured carbon fiber composite wire core rod of the invention adopted, the comprehensive mechanical properties of a current wire steel core or a traditional composite material wire core rod can be improved, and the service life of the current wire steel core or the traditional composite material wire core rod can be effectively prolonged.

The invention belongs to the field of rock mechanics experiments, and specifically discloses a device and a method for taking and storing mudstone core. The device comprises an inner cladding, an integral bracket, a conformal casting layer, and a compression spring assembly. The conformal casting layer is arranged in the metal integral bracket. The inner cladding is arranged in the conformal casting layer. The compression spring assembly is arranged between the top of the integral bracket and the inner cladding. The method comprises the following steps of: wrapping the mudstone core sample bythe inner cladding; positioning the integral bracket and the mudstone core sample; mounting the integral bracket, the compression spring assembly and the conformal casting layer; casting a solidifiedmaterial in the conformal casting layer to shape the mudstone core sample; controlling the compression spring assembly to simulate a three-way compression state of the mudstone core sample, wherein this is the storage state of the mudstone core sample; and sampling the mudstone core sample. Therefore, the taking and store of the mudstone core are completed. According to the device and the method for taking and storing the mudstone core, the physical and mechanical properties of the mudstone core sample just after exiting the hole can be maintained after long-term suspension and long-distance transportation.

The invention belongs to the technical field of gear hobbing machines, and particularly relates to a hobbing cutter main shaft mechanism of a CNC gear hobbing machine. The hobbing cutter main shaft mechanism of the CNC gear hobbing machine solves the technical problems that practicability is poor in the prior art and the like. The hobbing cutter main shaft mechanism of the CNC gear hobbing machine comprises a cutter rest shell and hobbing cutter main shaft which is arranged in the cutter rest shell in a penetrating mode and can rotate relative to the cutter rest shell, the front end of the hobbing cutter main shaft is inserted into the cutter rest shell and is arranged in a suspending mode, the tail end of the hobbing cutter main shaft penetrates through the cutter rest shell and extends out of the cutter rest shell, a first rolling structure is arranged between the cutter rest shell and the hobbing cutter main shaft, a supporting plate fixedly connected with the cutter rest shell is arranged in the cutter rest shell and is provided with a barrel-shaped locating body which is fixedly connected with the supporting plate and arranged on the periphery of the suspended end of the hobbing cutter main shaft in a sleeved mode, a second rolling structure is arranged between the hobbing cutter main shaft and the barrel-shaped locating body, and an axial locating mechanism used for preventing axial float of the hobbing cuter is further arranged between the hobbing cutter main shaft and the barrel-shaped locating body. The hobbing cutter main shaft mechanism of the CNC gear hobbing machine has the advantages of being high in structural intensity, rigidity and practicability during interrupted cutting.

The invention relates to a connector. The connector includes an installing shell, a conductive spring leaf and an auxiliary spring leaf are arranged on the installing shell, the conductive spring leaf has a conductive spring leaf fixed root and a conductive spring leaf elastic overhanging end elastically overhanging forwards, the auxiliary spring leaf has an auxiliary spring leaf fixed root and an auxiliary spring leaf elastic overhanging end elastically overhanging forwards and used for being matched with the conductive spring leaf elastic overhanging end in a pressing manner, and a conductive spring leaf deformation anti-interference space is arranged between a connecting position of the conductive spring leaf elastic overhanging end and the conductive spring leaf fixed root and the auxiliary spring leaf. The connector provided by the invention solves the problem in the prior art that since the connecting position of the fixed root and the elastic overhanging end of the conductive spring leaf is subjected to interference of the auxiliary spring leaf, a deformation capability of the conductive spring leaf is limited.

The invention discloses a large-tonnage automobile loading elevator. The elevator comprises two guide rails (1) arranged in a well, a car platform bracket structure (2) is arranged on the guide rails (1) and is provided with an elevator car (3), and a machine room arrangement structure (4) is arranged above the well. The car platform bracket structure (2) comprises two straight beam frames (201) matched with the guide rails (1), the straight beam frames (201) comprise straight beams (202) matched with the guide rails, lower beams (203) are arranged below the straight beams (202), bases (204) are arranged on the lower beams (203), the elevator car (3) is fixed to the bases (204), car platform wheel lower beams (205) are fixed below the bases (204), car top wheels (206) are arranged at the two ends of each car platform wheel lower beam (205), upper beams (207) are arranged above the straight beams (202), and connection beams (208) are arranged between the two sets of upper beams (207).

The invention provides a double-layer solid wood composite floor and a preparation method thereof. The double-layer solid wood composite floor comprises a surface plate and a back plate. Multiple through holes are formed in the back plate in a hollowed-out mode. A glue layer is arranged between the surface plate and the back plate, hot pressing is conducted, a double-layer wood plate structure is formed, wood grain directions of the surface plate and the back plate are identical, and wood blocks perpendicular to grain of the surface plate and grain of the back plate and corresponding to the contours of the through holes are embedded into the through holes. By means of the double-layer solid wood composite floor, glue layers are reduced, only one glue layer is used, and the emission amount of harmful gas is reduced. The wood blocks with perpendicular middle grain are embedded, longitudinal strength is greatly improved, and the big-width floor can be machined. The problems that double-layer solid wood composite floors are poor in deformation and stress resisting capacity, traditional three-layer or multi-layer composite wood floors are provided with too many glue layers, and excessive harmful gas is released are solved.

The invention provides a section-variable tunnel-crossing lining trolley which comprises a portal system, a template system, a connecting part and a walking mechanism, wherein the portal system comprises a frame part, a jacking mechanism and a bracket part; the jacking mechanism comprises multiple sets of jacking single pieces; each of the jacking single pieces comprises a multi-level jacking part; the bracket part comprises a truss girder and an adjusting support frame for a walking mechanism; the template system comprises a top template, a left template and a right template; and the connecting part comprises a support jack and a hydraulic cylinder. The section-variable tunnel-crossing lining trolley provided by the invention has the effects that the whole structure is simple; the assembling is convenient; the jacking mechanism is in a multi-level jacking mode; the trolley not only can adapt to the construction for the tunnel sections in different heights but also can achieve higher lifting volume; the trolley can meet the requirement of constructing multiple parallel tunnels by one trolley in the manner of constructing the working tunnel; due to the design of the bracket part, the lining trolley can meet the stability requirement, and meanwhile, the structure is simplified and the whole trolley can be supported.

The invention relates to the technical field of asphalt pavement construction methods, and discloses permeable asphalt and an improved construction method thereof.The permeable asphalt is characterized in that 1, rubber powder and an HVA high-viscosity modifier are used for conducting composite modification on asphalt, and the cohesiveness of the asphalt is improved; and 2) the permeable asphalt is heated to 180 DEG C to enable the permeable asphalt to be in a flowing state, and respectively 6%, 8%, 10% and 12% of micro-particle HVA high-viscosity modifiers are added into the permeable asphalt. According to the permeable asphalt and the improved construction method thereof, the influence of water damage on the service life of an asphalt pavement can be reduced, the service life of the pavement can be greatly prolonged, the viscosity of the asphalt can be greatly improved by doping the micro-particle HVA modifier and a proper amount of rubber powder, and the high and low temperature resistance and the fatigue resistance of an asphalt mixture can be comprehensively improved; and the use stability of the permeable asphalt pavement in a high-temperature region and a cold region is improved, and the junked tires are combined with the permeable asphalt pavement, so that the pavement performance can be improved, and the environmental pressure caused by the junked tires can be relieved.

The invention discloses a glue solution for coating a television circuit board and a preparation method of the glue solution, and particularly relates to the technical field of circuit board glue solutions. The glue solution comprises a component A liquid and a component B. The component A liquid comprises epoxy resin, a curing agent, pyrolytic graphite, nano silicon dioxide and an organic solvent; and the component B liquid comprises polyurethane, a curing accelerator, nano cellulose, hexagonal boron nitride microchips and an organic solvent. The heat-resistant and high-temperature-resistant performance of the glue solution can be effectively improved, the toughness and flexibility of the glue solution in a high-temperature environment and the protection effect on a circuit board can be effectively guaranteed, the glue solution can be prevented from being dried up and hardened in the high-temperature environment when the circuit board is coated with the glue solution, double modification treatment can be effectively combined on the basis of effectively guaranteeing the performance of epoxy resin, on the basis of effectively ensuring the self performance of polyurethane, double modification treatment can be compounded, and the heat resistance and stability of the component A liquid and the component B liquid can be effectively enhanced.

The invention discloses a method for reinforcing unloading beams of an unloading station of a coal mine. The method includes technological steps of (1), chiseling away concrete of redundant portions of inner sides of the unloading beams A and B; (2), increasing widths of reinforced concrete beams of outer sides of the unloading beams; (3), welding anchor bars on steel plates which have thicknesses ranging from 8mm to 12mm and are used as formworks, and then anchoring the steel plates on the inner sides of the unloading beams; (4), grouting and compacting high-strength non-shrinkage grouting materials in gaps among the steel plates and the unloading beams; (5), additionally arranging concealed beams on an access slope between the unloading beams to prevent the unloading beams from continuing deforming inwardly after the unloading beams are reinforced; and (6), grooving parts among the unloading beams and a concrete slab of the top of a coal bunker. The method has the advantages that the method is simple in implementation process, easy to implement, short in period, and low in cost, and becomes effectively quickly, the deformation resistance and the bearing capacity of the unloading beams can be effectively improved, service lives of the unloading beams of the coal bunker are prolonged, safe running of production of the coal mine is guaranteed, and problems that unloading beams deform and tramcars cannot run through due to deformation of an unloading chamber are effectively solved.

The invention discloses a precast beam construction technology, and particularly relates to a precast beam pedestal obtained through a pre-tensioning method. The precast beam pedestal comprises a rectangular plate bottom plate and force transmission columns arranged on the two sides of the bottom plate in parallel. A fixing end steel beam is arranged at one ends of the force transmission columns, and a tensioning end steel beam is arranged at the other ends of the force transmission columns. A tensioning device is connected to the tensioning end steel beam. Steel strands are arranged between the fixing end steel beam and the tensioning end steel beam. When the tensioning device conducts tensioning on the steel strands, the steel strands and the tensioning end steel beam move relatively, and therefore the fixing end steel beam can be tensioned and closely attached to one ends of the force transmission columns, and meanwhile the tensioning end steel beam is pressed and closely attached to the other ends of the force transmission columns. According to the precast beam pedestal obtained through the pre-tensioning method, by changing the structural form of the pedestal, the defects that a traditional pedestal is complex in structure, wastes materials and labor and is long in manufacturing period are overcome, the precast beam pedestal can be simple in structure, cost is substantially saved, and the construction progress is accelerated.