26results about How to "Avoid torsional deformation" patented technology

The invention relates to the technical field of storage and transportation equipment, in particular to a thin film enclosure structure and a liquid cargo tank enclosure system. The heat insulation piece layer is arranged on the side, back on to the wave protrusions, of the sealing film layer. And the reinforcing piece is arranged between the sealing film layer and the heat insulation piece layer, is connected to the heat insulation piece layer and extends into the wavy bulges formed by the sealing film layer. The wave protrusion structures can conduct self-contraction deformation to release stress when bearing deformation stress so as to maintain the stability of the whole structure, the reinforcing pieces can prevent the wave protrusions from generating large deformation, displacement and twisting deformation of the wave protrusions are prevented, and the service life of the whole structure is prolonged. And the supporting effect can still be effectively achieved under the condition that asymmetric stress exists in the liquid cargo tank containment system, the influence of various stress sources on the sealing thin film layer is relieved, the overall structural stability of the thin film type containment system is improved, and it is guaranteed that the good sealing effect and safety can be maintained under various operation conditions and external influences.

The invention provides a double-output air cylinder which comprises a cylinder body, a cylinder cover, a piston, a piston rod and a piston rod. A cavity is formed in the cylinder body, a partition plate is arranged in the cavity, and the partition plate divides the cavity into a front cavity and a rear cavity; the piston assembly comprises a first piston arranged in the front cavity in a sliding fit mode and a piston rod arranged on the head portion of the first piston, and the piston rod extends out of the cylinder body and serves as a first output end. The rotating assembly comprises a rotating assembly body arranged in the rear cavity, a driving shaft is arranged on the rotating assembly body, and the driving shaft penetrates through the partition plate, is in rigid connection with the first piston and can drive the piston rod to rotate in the radial direction. The double-output air cylinder is compact in structure, small in size, capable of adjusting the output shaft at any angle, high in adjusting precision, reliable and stable to use, particularly suitable for mechanical arms of non-standard equipment, and wide in application range, and has a self-locking effect.

The utility model belongs to the technical field of packaging boxes, and particularly relates to an electronic device packaging box which comprises a rear surrounding plate and a containing plate. A first side wall plate and a second side wall plate are arranged on the two opposite side edges of the rear wall plate respectively, first folded plates are arranged on the lower edge of the first side wall plate and the lower edge of the second side wall plate, second folded plates are arranged on the upper edge of the first side wall plate and the upper edge of the second side wall plate, a front wall plate is arranged on one side edge of the second side wall plate, and a sticky plate is arranged on one side edge of the front wall plate. A cover plate is arranged on the upper edge of the rear coaming, and a buckle plate is arranged on the upper edge of the cover plate. A bottom plate is arranged on the lower side of the rear coaming; the lower edge and the two side edges of the placing plate are all provided with surrounding plates, the upper edge of the placing plate is provided with a connecting plate, the upper edge of the connecting plate is connected with the lower edge of the bottom plate, and the placing plate is provided with a plurality of clamping holes. And the button switch is easy to shake and touch in the packaging box, so that the button switch is easy to damage.

The invention discloses a steel wire straightening machine, and relates to the technical field of steel wire straightening processing equipment, the steel wire straightening machine comprises a straightening machine base, a straightening traction assembly and a steel wire material, a straightening frame is fixedly mounted on the straightening machine base, the straightening traction assembly and the straightening frame are sequentially arranged in the direction of straightening the steel wire material, and a radial straightening shaping assembly is arranged in the straightening frame; the radial straightening and shaping assembly comprises a reciprocating screw rod rotationally connected to the bottom of the inner side of the straightening frame, a driving motor is fixedly installed on one side of the bottom of the straightening frame, the output end of the driving motor is fixedly connected with one end of the reciprocating screw rod, a reciprocating block is in transmission connection with the reciprocating screw rod, and a sleeve is fixedly installed at the top of the reciprocating block. By means of the structure, a steel wire is evenly shaped in a full-angle mode, the straightening rollers and a steel wire material are kept relatively static, the radial round shaping effect of the steel wire is improved, and abrasion between the straightening rollers and the steel wire material is reduced.

The present invention relates to the fields of water conservancy engineering and shipping engineering, and discloses a ship lift tower column structure with a sparse pile raft foundation and a layered strong constraint box beam, comprising a tower column body, the tower column body comprising two tower column groups that are symmetrical on both sides, the space between the two tower column groups forming a ship compartment, a raft foundation being arranged directly below the tower column body, a sparse pile group being arranged directly below the raft foundation, a plurality of layers of connecting box beam groups being arranged between the middle and upper parts of the two tower column groups, each layer of connecting box beam groups comprising two connecting box beams located at the most upstream and the most downstream, a top beam group comprising a plurality of top beams being arranged between the tops of the two tower column groups, and the two ends of the top beams being fixedly connected to the two tower column groups. The present invention provides a ship lift tower column structure with a sparse pile raft foundation and a layered strong constraint box beam, effectively controlling the uneven settlement of the ship lift foundation and its later rheology, reducing the lateral deformation of the structure, avoiding the torsional deformation of the tower column, and reducing the stress of each key part of the ship lift structure.

The embodiment of the invention provides a steel wire driving device and a surgical robot. The steel wire driving device comprises a support, a power assembly, a driving assembly, a connecting piece and a connecting pin. The power assembly is arranged on the support and used for providing driving force. The driving assembly is rotationally arranged on the support and connected to the power assembly, so that the driving assembly can rotate clockwise and anticlockwise around the rotating shaft under the action of the driving force of the power assembly. One end of the connecting piece is used for being connected with a steel wire, the other end of the connecting piece is rotationally connected to the driving assembly, the connecting piece has a first rotating state and a second rotating state relative to the driving assembly, a rotating shaft of the connecting piece in the first rotating state is parallel to a rotating shaft of the driving assembly, and the connecting piece rotates in the circumferential direction in the second rotating state. According to the steel wire driving device, torsional deformation of the steel wire is avoided, the movement resistance of the driving assembly can be reduced, and then the accuracy of controlling the surgical instrument is improved.

The utility model discloses an engine test bed steel frame, including steel column, hanging column and horizontal support spare, the utility model with steel column as the core bearing component, forms horizontal rigid connection through the first frame beam, second frame beam and steel beam of adjacent steel column top installation, constitutes spatial grid system, sets up the cross support system link between second frame beam, promotes the structural lateral displacement resistance ability significantly, combines steel beam pre-arch technology, ensures the stability under the large -span working condition, and the hanging column forms three point restraint system through internal structure, and the accurate positioning of cooperation assembly jig frame realizes the stable transmission of engine hoisting load, and the horizontal support spare constitutes the composite stress system by the vertical installation second connecting rod and the connecting rod of different inclination angle arrangement, forms spatial truss effect, effectively resists the horizontal vibration when the engine operation, prevents the frame torsional deformation, and the overall structure has high precision, anti -dynamic load and long -life characteristics.

This application relates to the field of vehicle chassis and provides a suspension structure and a vehicle. The suspension structure of this application includes an outer tube, an inner core disposed within the outer tube, and an elastic body disposed between the outer tube and the inner core. The elastic body has a first portion wrapped around the inner core and a second portion connected to the first portion. The second portion is disposed at the end of the inner core connected to the powertrain bracket, and when the inner core is connected to the powertrain bracket, the second portion can abut against the powertrain bracket. The suspension structure of this application can increase the friction between the elastic body and the powertrain bracket, and also increase the friction between the powertrain bracket and the inner core during the connection process, preventing the inner core from shifting. This effectively avoids torsional deformation of the elastic body, thereby improving the reliability of the elastic body and the overall suspension structure.

The utility model discloses an optical mechanism reflector installation structure which comprises an installation frame and a connecting bolt, the installation frame is provided with at least three installation feet, the installation feet are provided with installation holes, a cushion block and a disc-shaped gasket are sequentially arranged above each installation foot upwards, and a spherical gasket and a conical gasket are sequentially arranged below each installation foot downwards. The connecting bolt sequentially penetrates through the disc-shaped washer, the cushion block, the mounting hole, the spherical washer and the conical washer and then is fixedly connected with the optical mechanism in a threaded mode, and the reflector is mounted in the center of the mounting frame. The reflector is fixed on the mounting frame, the spherical washers and the conical washers which are matched with each other, the cushion blocks and the butterfly washers are arranged on the connecting bolts of the mounting feet of the mounting frame, so that the position of the mounting frame is adjusted through relative sliding of the spherical washers and the conical washers in the mounting process, and finally, the three mounting feet have no mounting stress; the installation frame is prevented from generating torsion deformation after installation, mirror surface deformation of the reflector is guaranteed, and therefore the performance requirement of an optical mechanism is met.

The utility model discloses a steel structure track beam for mechanical energy storage, the steel structure track beams are arranged at equal intervals on each floor of a mechanical energy storage system, each steel structure track beam is composed of steel beams, steel corbels and a connection steel truss, the two sides of the connection steel truss are respectively provided with one steel beam, and each steel beam is provided with one steel corbel. The mass block is stored above the steel beam, the RGV trolley runs on the steel corbel, and the wheel height of the RGV trolley is smaller than the distance between the steel beam and the flange plate, so that the RGV trolley can still pass on the track beam while the mass block is arranged on the upper surface of the steel beam; meanwhile, the vertical load of the RGV trolley is transmitted to the right triangle stiffening rib and the stiffening rib through the web in the steel corbel and then transmitted to the vertical supporting component of the mechanical energy storage system through the steel beam, and therefore the requirements for flatness and gradient of the steel structure track beam can be met, the construction difficulty is small, and the construction period is short.

The utility model discloses a greenhouse rolling rod positioning device based on a gyroscope, relates to the field of greenhouses, and aims to solve the technical problems that in the prior art, when the front end and the rear end of a rolling rod rotate through a film rolling device during rolling of a thin film, the rotating speeds are different, or rotation of one end of the rolling rod is blocked due to external force; and the problem that the rolling rod is damaged due to twisting deformation is solved. Film rolling rods are fixedly connected to the lower ends of the greenhouse films on the two sides of the greenhouse support, climbing rods are arranged at the upper end of the planting ground and on the two sides of the front end and the rear end of the greenhouse, and film rolling device shells are connected to one sides of the lower ends of the four climbing rods; the front ends and the rear ends of the two film rolling rods penetrate through the film rolling device shells at the lower ends of the four climbing rods correspondingly and are fixedly connected with gyroscopes, the rotation angular speeds of the two ends of the film rolling rods are monitored in real time through the gyroscopes, the twisting state of the rolling rods can be accurately detected, and twisting deformation or damage of the rolling rods caused by asynchronous rotation speeds of the two ends is effectively avoided.

The utility model discloses a detachable stiffening support used for a photovoltaic support. The photovoltaic support comprises an oblique beam. A plurality of purline supporting point positions are arranged on each oblique beam, a purline support is arranged at each purline supporting point position, and a purline is arranged on each purline support; a stiffening support is arranged at at least one purline supporting point; the stiffening support comprises a section of short thin-wall C-shaped steel with the outer contour matched with the inner contour of the oblique beam, the short thin-wall C-shaped steel comprises a C-shaped steel web, a C-shaped steel upper side plate and a C-shaped steel lower side plate, the C-shaped steel upper side plate and the C-shaped steel lower side plate are located on the upper side and the lower side of the C-shaped steel web respectively, and the short thin-wall C-shaped steel is tightly attached to the inner side of the oblique beam in a matched mode. A stiffening rib is arranged in the center of the short thin-wall C-shaped steel, and the stiffening rib is vertically connected with the C-shaped steel web, the C-shaped steel upper side plate and the C-shaped steel lower side plate; the short thin-wall C-shaped steel, the oblique beam, the purlin support and the purlin are installed and connected in a bolt mode. According to the scheme, the stability performance of the structure can be improved, and meanwhile the steel consumption of the structure is greatly reduced.

The invention provides a transmission mechanism and an air conditioner. The transmission mechanism comprises a rotatable power input component; at least one planet gear rotatably mounted to the power input member; the damping piece is arranged between the planet wheel and the power input component; the power output component comprises a gear structure meshed with the planet wheel; the transmission mechanism has a transmission state and a non-transmission state, in the transmission state, the planet wheel is static relative to the power input component under the damping effect of the damping piece, and the power output component can be driven by the rotating power input component to rotate; and in the non-transmission state, the planet wheel can overcome the damping effect of the damping piece to rotate relative to the power input component, and the power output component does not rotate under the driving of the rotating power input component. The transmission mechanism not only can prevent the driving motor from stalling, but also is low in cost.

The application discloses a multi-angle welding device for steel plate processing, and relates to the field of metal welding equipment. The outer side of a bearing welding base body is provided with a hydraulic driving part, the output end of the hydraulic driving part is connected with a bearing butt joint assembly, and the upper end of the bearing butt joint assembly is used for placing a steel plate workpiece to be welded. The multi-angle welding device for steel plate processing is independently and synchronously driven to rotate the steel plate placed by the bearing butt joint assembly around the same rotary axis. When the hydraulic driving part pushes the corresponding steel plate upward to make the steel plate angularly move, the rotation angle of the steel plate and the stroke of the driving rod are in linear relationship. An operator can quickly calculate the extension amount of the driving rod according to the required included angle, and the repeated trial is not needed. The symmetrical adjustment mode makes the angle adjustment of the two steel plates not interfere with each other, and the adjustment process is stable and continuous. The adjustment can be realized in the range of 0-180 degrees, and the stable angular welding stability of the two groups of steel plates in angular contact can be ensured.

The present invention relates to the technical field of aluminum stranded wire preparation, and specifically discloses an aging-resistant aluminum stranded wire and a preparation method thereof, comprising a fixed tube, the outer surface of the fixed tube is provided with a fitting groove, the fitting groove is extended in a spiral shape, and a plurality of the fitting grooves are arranged at fixed intervals around the central axis of the fixed tube, and also comprises: an aluminum wire, the inner surface of the aluminum wire is tightly fitted in the fitting groove, and the aluminum wire is combined into a tubular aluminum stranded wire. By providing a groove on the second steel core and arranging the groove and the contact hole relative to each other, after the aluminum wire is twisted on the fixed tube, the aluminum wire will also achieve point contact and mutual engagement through the groove and the second steel core. Through this engagement method, the second steel core can be limited during use to avoid the second steel core being linearly distributed in the fixed tube and shifting to reduce the structural strength of the aluminum stranded wire. By distributing the second steel core linearly, the production time can be greatly reduced, and the production efficiency can be greatly improved.

The utility model discloses an observation well, which belongs to the technical field of observation wells and comprises a main pipeline and a plurality of branch pipelines, an opening at one end of the main pipeline is used for being communicated with the ground, one end of each branch pipeline is connected with the outer side surface of the main pipeline, and the branch pipelines are communicated with the main pipeline; the longitudinal section of the branch pipe wall of the branch pipeline comprises a linear structure and / or an arc-shaped structure, and the linear structure and / or the arc-shaped structure are / is connected with each other. The longitudinal section of the branch pipe wall of the branch pipeline comprises the linear structure and the arc-shaped structure, the linear structure and the arc-shaped structure are connected with each other, and the arc-shaped structure can disperse loads, reduce stress concentration of the branch pipe wall and improve compressive strength and deformation resistance of the branch pipeline.

The utility model relates to the field of hinge discloses a small size embedded hinge, including two sleeves, two sleeve all weld in the right side of female hinge, the inner wall of sleeve inserts with central axis, the right side of female hinge sets up sub hinge, the left side of sub hinge is welded with a plurality of connecting barrels, the connecting barrel corresponds with sleeve, the connecting barrel is equipped in the outer wall of central axis, two connecting frames are welded on the sub hinge, one end of connecting frame is welded with support cylinder, the support cylinder corresponds with connecting barrel, the support cylinder is equipped in the outer wall of central axis, in the utility model, through the cooperation of connecting frame, support cylinder and X-shaped support frame, can disperse stress through the principle of triangular truss when sub hinge bears axial load, forms multidirectional constraint when sub hinge is loaded, effectively prevents the bending and torsional deformation of sub hinge and connecting barrel under stress, and simultaneously spreads local stress to the whole of connecting frame.

The invention relates to a high-flux pipe surface machining device and method. The high-flux pipe surface machining device comprises a support; the clamping block is arranged on the bracket around the high-flux tube; the groove block is rotationally connected to the clamping block; the driving wheel set is rotationally arranged on the bracket; the driving mechanism is arranged on the support to drive the clamping blocks to move close or away in a reciprocating mode; wherein the driving mechanism drives the clamping blocks to get close to each other, and the clamping blocks clamp the high-flux pipe and push the high-flux pipe to move; the driving mechanism drives the clamping blocks to be away from each other, and the clamping blocks are separated from the high-flux tube; the driving wheel set makes contact with and drives the high-flux pipe to rotate by a certain angle, and the machining path of the surface of the high-flux pipe is changed. When the clamping blocks clamp the high-flux pipe, the groove blocks are pressed into the surface of the high-flux pipe, and machining marks are formed. The problems that in an existing scheme, the medium in a longitudinal groove is high in flow speed and short in standing time are solved; and meanwhile, the media in the longitudinal grooves flow smoothly, and the two media cannot form effective heat exchange, so that the longitudinal grooves in the high-flux pipe are limited in improving the heat exchange efficiency.

The utility model discloses a shock -absorbing carbon fiber bicycle front fork, this shock -absorbing carbon fiber bicycle front fork includes: upper pipe, fork shoulder, stroke pipe, fork bucket, disc brake mounting seat and plug foot, the shock -absorbing carbon fiber bicycle front fork still includes shock -absorbing subassembly, and the shock -absorbing subassembly is installed in the stroke pipe of main fork bucket and cooperation connection, to form the main shock -absorbing structure of bicycle front fork, the shock -absorbing subassembly includes oil spring shock -absorbing subassembly, elastic metal damping unit and damping damping unit, and oil spring shock -absorbing subassembly is installed in the stroke pipe of main fork bucket and cooperation connection, elastic metal damping unit sets up in the plunger rod top of oil spring shock -absorbing subassembly, and damping damping unit sets up between plunger rod bottom and main fork bucket bottom wall. Shock -absorbing carbon fiber bicycle front fork bears the core damping function through main fork bucket integration shock -absorbing subassembly, and metal damping unit is placed in plunger rod top, and it is deformed in priority before oil spring shock -absorbing subassembly starts, and high -efficient absorption high -frequency small vibration.

The present invention discloses a self-tilting side wall formwork trolley, which relates to the technical field of construction engineering, including a frame, a template can be adjusted on one side of the frame, an adjustment device for adjusting the position of the template is arranged between the template and the frame, a wheel travel device is arranged at the bottom of the frame for facilitating the movement of the frame position, and a self-tilting demoulding device for pushing the frame to tilt is also arranged at the bottom of the frame; the self-tilting demoulding includes a rotating mechanism and a pushing device respectively arranged on both sides of the frame. In view of the problem of demoulding difficulty in the prior art, the present invention tilts the frame, and subsequently uses the deadweight of the frame to restore the horizontal placement position to achieve demoulding, improve demoulding efficiency, and has low operation requirements.

The utility model discloses a pot opening sealing structure which is arranged on a pot cover and used for sealing a pot opening of a pot body. Comprising a bearing plate connected to a pot cover; the cover plate is detachably connected to the bearing plate; the pot opening sealing ring is arranged on the cover plate in a sleeving manner; wherein a straight arm part extending in the axial direction is formed on the peripheral wall of the cover plate, the pot opening sealing ring is fixed to the peripheral wall of the straight arm part, and after the distance between the straight arm part and the pot opening subtracts the thickness of the pot opening sealing ring, a deformation space allowing the pot opening sealing ring to deform is formed. The deformation space formed between the straight arm part of the cover plate and the pot opening allows the pot opening sealing ring to generate controllable deformation under the action of pressure, so that the sealing effect is improved, and meanwhile, the pot opening sealing ring is prevented from being damaged due to excessive deformation; the sealing ring is supported and positioned through the straight arm part of the cover plate, so that secondary sealing protection of the pot opening sealing ring is realized, and the leakage risk caused by aging and deformation of the pot opening sealing ring is reduced.

The utility model provides a hanger for network equipment, which relates to the technical field of network equipment installation and comprises a fixing frame, guide grooves are formed in the outer surfaces and the inner walls of the two sides of the fixing frame, and the two sides of the fixing frame are connected with movable installation frames in a sliding mode. The movable mounting frames are arranged in a movable mode and connected with positioning holes through positioning rods, sliding openings are formed in the positions, close to the edges of the rear sides, of the tops of the two movable mounting frames, the two sides of the fixed frame are located in the two sliding openings, and guide blocks are fixed to the inner walls of the two sides of the two sliding openings. Therefore, the movable mounting frame can be positioned, and the problem that an existing router is directly fixed on a wall surface or other positions through screws and is inconvenient to disassemble is solved.

The application discloses a rear cross beam structure, a vehicle frame and a vehicle. The rear cross beam structure comprises a main body, a connecting piece and a mounting piece. The first side wall is concave upward and downward in the first direction, and the second side wall is convex upward in the second direction. The load bearing capacity of the rear cross beam on the towing hook is improved. Due to the distance between the towing part and the towing hook, the first structure section and the second structure section are formed at different heights to further increase the torsional resistance of the first connecting section, improve the reliability when supporting the towing object, reduce the torsional force applied to the main body in the direction of the combined dynamic inertia direction along the gravity direction of the towing hook, further avoid the torsional deformation of the main body, the overall rear cross beam mechanism can reduce the thickness to obtain a good lightweight effect, improve the overall structural reliability of the rear cross beam structure, reduce the welding difficulty requirement and quality risk, improve the overall vehicle handling performance, and reduce the braking distance.

The utility model relates to the technical field of stop valves, and provides a liquid hydrogen stop valve which comprises a valve body, a valve clack and a valve cover, and the valve cover is arranged above the valve body and fixedly connected with the valve body through a guide rod. The guide block is arranged on the guide rod and is in sliding connection with the guide rod; the valve rod penetrates through the valve cover and the guide rod in the longitudinal direction, the bottom of the valve rod is fixedly connected with the valve clack, and the top of the valve rod is fixedly connected with the guide block; the operating rod penetrates through the valve cover in the longitudinal direction and is in threaded connection with the valve cover, and the bottom of the operating rod is rotationally connected with the guide block; the corrugated pipe is arranged on the valve rod in a sleeving manner, and the lower end of the corrugated pipe is fixedly connected with the valve rod; the heat insulation ring is arranged at the lower end of the valve rod in a sleeving mode, fixedly connected with the valve body and located below the corrugated pipe; the sealing assembly is arranged above the corrugated pipe and used for achieving sealing between the valve rod and the valve body.

The invention relates to the technical field of mining blasting, in particular to a damaged emulsion explosive remodeling device and method. The remodeling device comprises a plastic package roll rotating shaft and an explosive roll rotating shaft which are arranged in parallel, the plastic package roll rotating shaft and the explosive roll rotating shaft are telescopic rod pieces and detachably arranged on a support, the plastic package roll rotating shaft and the explosive roll rotating shaft are rotationally connected with the support, and the explosive roll rotating shaft is further provided with a gap used for containing a damaged emulsion explosive roll. The cartridge rotating shaft is provided with clamping pieces on the two sides of the gap respectively, and the clamping pieces are used for fixing the damaged emulsion explosive cartridge. According to the method, the damaged emulsion explosive is wrapped by the plastic film again, the problem that the emulsion explosive cartridge with the damaged outer package is directly used or the waste is recycled can be solved, the method is safe, simple and low in cost, the performance of the emulsion explosive is not affected after remodeling, and the method has wide application prospects.

The invention discloses a device for solving turning deformation of aluminum alloy thin-wall cabin type parts, which comprises a clamp body, a locking screw sleeve, a positioning screw sleeve, a centering block, a mandrel and a cover plate, the locking screw sleeve is arranged on the clamp body, the clamp body and the centering block are mounted on the mandrel through flat keys, an inner positioning thread is arranged on the inner side of the locking screw sleeve, and the cover plate is arranged on the inner side of the positioning screw sleeve. A first locking nut is arranged on the mandrel and arranged on one side of the centering block, the cover plate is arranged at the tail end of the mandrel in a sleeved mode, and a second locking nut is arranged on the mandrel and arranged on one side of the cover plate. A supporting block is slidably arranged on the mandrel, and a compression spring is arranged on one side of the supporting block. A third locking nut is arranged on the mandrel and arranged on one side of the supporting block. One end of the supporting block is of a conical structure. Axial tensioning force is applied to the main shaft end through the positioning threaded sleeve, the middle of the main shaft is supported in a radial auxiliary mode through the supporting block, the tail end of the mandrel is supported through the lathe tail top, the tool centering requirement is met, and elastic and torsional deformation in the machining process is avoided.