22results about How to "Increase sliding resistance" patented technology

The invention discloses a punch forming device for producing an automobile engine oil pan, and relates to the technical field of punch forming, and the punch forming device comprises a composite mechanism. According to the punch forming device for production of the automobile engine oil pan, through the design of the composite mechanism, materials are placed in the processing mechanism and conveyed to the composite base through the processing mechanism, then a movable cross beam is controlled through a hydraulic column to enable a pressing module to extrude a bearing module, and therefore the punch forming effect is achieved; the effect of manually laying materials is reduced, potential safety hazards of operators are reduced, the operation environment is optimized, after long-time operation of the bearing module, parts can be seriously abraded, and therefore the stamping precision of follow-up materials is affected, the bearing module can be replaced, and in the process that the pressing module extrudes the materials towards the bearing module, the pressing module can be replaced, and the pressing module can be replaced. And the magazine mechanism contracts to store force, so that after stamping is finished, ejection is performed through the magazine mechanism, the effect of preventing material adhesion is achieved, and the subsequent operation efficiency is prevented from being influenced.

The reinforcing convex parts and the clamping concave parts are arranged on the outer side of the frame of the tray body, so that the strength and the stability of the outer surface of the tray are improved, different trays can be mutually nested to form a stable stacking structure, and the anti-falling convex teeth and the taking and placing grooves are arranged on the inner side of the frame and used for positioning and conveniently taking and placing products. The placing area is provided with a protection assembly and anti-skid protruding points used for reducing stress borne by the placed products, preventing skid and positioning the placed products of different sizes. By means of the novel design, a placed product can be better positioned, the friction force of the placed product is increased, the sliding resistance is increased, and the device can be shared with products with small sizes.

The invention discloses a near-space large-scale sounding balloon mold, comprising a wooden handle and a carambola-shaped body. The handle and the central axis of the body are coaxial and integrated. A preheating sleeve ring capable of moving and covering the handle for heating is provided at the free end of the handle. A plurality of anti-skid grooves for increasing the sliding resistance of the rubber film are provided along the axial direction at the outer periphery of the free end of the handle. The center of the handle and the central axis is hollowed out and inlaid with a densification inlay strip made of a heavy density material, so that the overall density of the mold is close to 1g / cm 3 . The mold of the present invention has a simple structure and has the advantages of small net buoyancy of the mold during dipping, not easy to shake during dipping, and not easy to slide down of the film. The present invention also provides a dipping method for a near-space large-scale sounding balloon mold, which adopts an oblique dipping method, and the angle between the central axis of the mold and the latex liquid surface is 60°-75°. The mold and dipping method of the present invention can be used to produce near-space large-scale sounding balloons with a launch altitude of 40km, 45km, and 50km. The balloon has good dipping molding, high pass rate, and good consistency.

This utility model provides a feeding compensation device for a fully automatic film coating machine, including a supporting base plate placed on an external lifting platform for supporting materials, a plurality of placement slots equally spaced on the supporting base plate, a plurality of support rods with one end set on the supporting base plate within each placement slot and the other end located outside the placement slot, and a counterweight block set on the other end of each support rod. The length of the support rod is greater than the length of the placement slot, and the support rod is fitted with the placement slot with a clearance. By subsequently increasing the lifting stroke of the lifting platform, the lifting frequency of the lifting platform is reduced, thereby reducing the energy consumption of the lifting platform due to frequent start-stop.

A sliding member, a fixing device, and an image forming apparatus, in which a sliding surface is configured from a heat-resistant thermoplastic resin other than a fluororesin and resin particles having a siloxane group other than the heat-resistant thermoplastic resin, the average particle diameter of the resin particles being 0.1 [mu] m to 10 [mu] m, and the average particle diameter of the resin particles being 0.1 [mu] m or more and 10 [mu] m or less. The surface roughness Rsk of the sliding surface is 1.0 or less, and the surface exposure rate of the resin particles on the sliding surface is 2% or more.

The utility model discloses a main shaft sealing mechanism, which belongs to the technical field of numerical control machine tools and comprises a main shaft, a rotating ring is fixedly connected outside the main shaft, a bearing lantern ring is rotatably sleeved outside the rotating ring, a fixing ring is fixedly sleeved on the bearing lantern ring, the bearing lantern ring is embedded in the fixing ring, and a gap is reserved between the bearing lantern ring and the bottom of the fixing ring. And a leather ring is sleeved outside the main shaft and is positioned in the rotating ring. And a reinforcing ring is fixedly connected outside the main shaft. The rotating ring comprises a first ring body, and a sealing groove is formed in the first ring body. When the main shaft rotates, the main shaft drives the rotating ring to rotate, in the process, the main shaft is better sealed through a staggered structure between the rotating ring and the bearing sleeve ring, oil dirt is prevented from falling down to burn out a bearing at the tail end of the main shaft, and the requirement for long-term stable production can be met. The use stability of the machine tool can be correspondingly improved; and the service life of the machine tool is prolonged.

The invention discloses an admixture capable of reducing cement flow velocity, and belongs to the technical field of cement grinding admixtures. The additive comprises a diethanolisopropanolamine component, a sodium thiocyanate component, molasses, a carboxylic acid polymer and water. A carboxylic acid polymer formed by acrylic acid modified unsaturated polyol is introduced and is adsorbed on the surfaces of cement particles through a carboxyl structure, and the sliding resistance among the cement particles is increased by utilizing a long-chain branch structure, so that the cement fluidity is reduced. Secondly, sodium thiocyanate is added, so that the fluidity of the cement is further reduced, the setting time of the cement is shortened, the concrete is rapidly hardened, and the strength of the cement is improved. Therefore, the admixture provided by the invention can reduce the cement flow rate, improve the belt delivery capacity and meet the cement delivery requirements under the condition that the use effect of the grinding aid is not influenced.

The present invention discloses a wear detection device for a rolling mill roll, comprising a detection mechanism; a pushing mechanism for driving the detection mechanism to move; an adjusting mechanism for adjusting the height of the detection mechanism; the detection mechanism comprises a connecting rod and a plurality of detection rods, the side wall of the connecting rod is provided with a long strip through hole, the plurality of detection rods are movably arranged in the long strip through hole, the pushing mechanism comprises a connecting plate and two first electric push rods, the two first electric push rods are symmetrically arranged on both sides of the connecting plate, one end of the first electric push rod is connected to the side wall of the connecting rod, the adjusting mechanism comprises a slide rail and a motor, a slide rail is provided with a movably connected slide plate, the side wall of the slide plate is provided with a first connecting block, one end of the output shaft of the motor is provided with a screw rod, the outer wall of the screw rod is matched with a screw rod nut, and the side wall of the screw rod nut is connected to the first connecting block. The present invention is convenient and quick to use, can realize the shape of the roll through the detection rod, and is convenient to determine the wear condition of the roll through the detection rod.

The invention belongs to the field of transformer oil change, and particularly discloses an ultra-high voltage transformer oil change device which comprises a transformer box body, a waste oil circulation assembly, a liquid level induction type valve control mechanism, a new oil filling assembly and a one-way oil drainage mechanism. The liquid level induction type valve control mechanism is located in the waste oil circulation assembly, the new oil filling assembly is arranged on the waste oil circulation assembly, and the one-way oil drainage mechanism is arranged in a transformer box in a clamped mode. The liquid level induction type valve control mechanism is creatively provided, through liquid level induction and an ingenious mechanical linkage structure, under the condition that no control module is needed, the technical effect that a plurality of valves are automatically opened and closed at the proper time is achieved, cost is greatly saved, and the popularization and practical value of the scheme is improved.

This invention discloses a welding method for fabricating a three-dimensional reinforced steel / aluminum welded joint on a steel surface, belonging to the field of dissimilar metal welding technology. This invention employs laser selective melting to fabricate a three-dimensional geometric structure on the surface of a steel substrate, forming a surface with a high aspect ratio and high specific surface area. By using brazing or fusion brazing methods, the bonding area between the liquid aluminum and the steel plate and the three-dimensional geometric structure is greatly increased, effectively suppressing crack propagation and achieving a dual enhancement of the strength and toughness of the steel / aluminum dissimilar metal joint. This method increases the specific surface area of ​​the steel / aluminum joint interface, improving sliding resistance under external loads, while the three-dimensional geometric structure itself bears some of the stress. Simultaneously, the three-dimensional geometric interface structure can alleviate joint interface stress and improve stress distribution, which is beneficial for obtaining a welded joint with good performance.

On the basis of an original elastic bandage, a metal buckle plate is removed and replaced with a hook and loop fastener with J-shaped hooks distributed on one side, the J-shaped hooks can easily hook fluff of the bandage and warp and weft in the bandage, and the good fixing effect is achieved. And when the fastener is opened, the J-shaped hook can be stressed and deformed to be released as long as the fastener is torn back along the edge of the hook and loop fastener by a hand. And the whole elastic bandage can be conveniently removed or the tightness can be conveniently adjusted. The same hook-and-loop fasteners are respectively fixed on different side surfaces of two ends of the elastic bandage body, the double-sided tapes are respectively adhered on opposite side surfaces where the hook-and-loop fasteners are fixed, and anti-slip spots are coated on two side surfaces of the middle of the elastic bandage body. Due to the integrated central symmetry design, the bandage is not divided into the head and the tail, production and use are convenient, end-to-end reverse buckling connection of the bandages can be achieved, and the bandage has the advantages of being reliable in use, obvious in anti-skid performance, simplified in production process, low in cost and the like.

The utility model relates to the technical field of temperature and humidity sensors, and particularly discloses a novel temperature and humidity sensor which comprises a temperature and humidity sensor body, a net frame is fixedly connected to the interior of the lower side of the temperature and humidity sensor body, and a filter net is fixedly connected to the inner side of the net frame. One side of the temperature and humidity sensor body is slidably connected with a push rod, and the filter screen is installed at the air inlet of the temperature and humidity sensor body, so that dust particles in air can be effectively intercepted, the dust particles are prevented from entering the temperature and humidity sensor body, and it is ensured that the temperature and humidity sensor body works normally and the measured value is accurate; a dust sweeping assembly is installed on the filter screen, dust on the filter screen can be regularly cleaned away through the dust sweeping assembly and collected through a dust collecting box, normal air inlet of an air inlet is ensured, the ventilation efficiency is guaranteed, and a temperature and humidity sensor can continuously and accurately monitor indoor environment temperature and humidity so that a user can know the current environment temperature and humidity; and the comfort of residents is improved.

The utility model relates to inner suspension pole sensor installation technical field, and disclose a kind of sensor mounting structure of inner suspension pole, comprising: mounting bracket, the mounting bracket with the sensor fixed connection, the mounting bracket includes fixed connection lower module, the surface of lower module is equipped with semicircular groove;Upper module, with the symmetrical distribution of lower module, surface is equipped with the semicircular groove of same size with lower module;Guiding limiting structure, the upper module is connected or fixed with the mounting bracket by the guiding limiting structure;Clamping structure, the clamping structure is connected with the lower module, the clamping structure includes handle, the clamping structure is connected with the upper module;The utility model solves the problem that traditional installation mode is prone to rotating displacement around pole, causes measuring datum plane to deviate, affects inclination measurement precision, installation difficult.

The application relates to the technical field of shock absorbers, and discloses a light-weight high-strength motorcycle shock absorber which comprises a connecting cylinder, a nut plate one is threadedly connected to the outer wall of the connecting cylinder, a spring one is fixedly connected to the top of the nut plate one, and the device will appear hard bottom impact when bearing huge impact; the slide rod bears pressure and drives the piston to quickly move downwards along the inner wall of the connecting cylinder; the bottom sharp corner of the supporting plate will first contact the groove at the bottom of the connecting cylinder; after the sharp corner is limited, the piston continues to move downwards and forces the supporting plate to push the fixed plate to slide along the sliding groove through the universal joint, forces the feeding port one to be dislocated with the feeding port three, and the overlapping area of the two is reduced, which will reduce the cross section of the flow aperture, increases the sliding resistance of the piston before hard bottom, and reduces the fatigue loss of the related components caused by hard bottom.

The application relates to the technical field of environment detection, and discloses an atmospheric environment instant detection device and a detection method. The device comprises a bottom plate, a mounting box fixedly installed on the top of the bottom plate, a gas inlet pipe vertically and fixedly connected to one side in the mounting box, a detection sensor fixedly installed on the inner bottom surface of the gas inlet pipe, a detection assembly arranged above the inside of the bottom plate, and a guide assembly arranged below the inside of the gas inlet pipe. Through the cooperation of the detection assembly, the guide assembly, the gas inlet pipe, the detection sensor, the pushing plate, the blocking plate and the guide plate, the segmented sampling and detection of the gas are realized, the gas is kept in full contact with the detection sensor, the detection under the condition of the change of the gas environment is adapted, the precision of the detection result is improved, and when the gas concentration is low, the blocking time of the blocking plate can be adjusted and extended, and the auxiliary guide of the auxiliary plate can be simultaneously realized.

This utility model discloses a volute-less fan specifically for gas filtration equipment, relating to the field of volute-less fans. The utility model includes a base and a housing. A motor is mounted on the top of the base, and an impeller is connected to the motor's output end. A junction box is mounted on the top of the motor, and the outer surface of the junction box has two connection ports. This utility model incorporates a sliding groove, a sliding block, a spring, an arc-shaped block, a protective pad, and a damping pad. When the cable at the connection port bends, it pushes the arc-shaped block corresponding to the bending direction to move. The arc-shaped block then pushes the sliding block to slide inside the sliding groove. As the sliding block slides, it compresses the spring, causing the spring to compress and generate a reaction force. The arc-shaped block prevents excessive bending of the cable, thus avoiding problems such as insulation damage and internal wire breakage due to excessive bending, thereby improving the cable protection effect. Simultaneously, the protective pad (made of silicone rubber) directly contacts the cable, reducing friction damage.

The invention relates to the technical field of gouging machines, and discloses a vertical gouging machine for metal plate processing, which comprises a machine body, a worktable for placing a metal plate, a fixing mechanism for fixing the metal plate, and a feeding mechanism for moving the metal plate at equal intervals, the fixing mechanism comprises a fixing piece rotationally arranged on the machine body and a servo air cylinder fixedly installed on the machine body, and the fixing piece is located above the metal plate. According to the invention, the working procedure of releasing the fixation of the metal plate by the fixing mechanism and the working procedure of equidistant movement of the metal plate by the feeding mechanism are combined, so that only the time for releasing the fixation of the metal plate needs to be consumed, the time required for moving the metal plate by the feeding mechanism is saved, and no time difference exists between the two working procedures; and therefore, the time required by a complete dadoing period can be effectively shortened, and the dadoing speed of the metal plate is increased.

This utility model discloses a car interior handrail cover, including a rotating plate hinged to the top of the storage compartment. A connecting plate is slidably mounted on the surface of the rotating plate, and the surface of the connecting plate is detachably covered with a soft fabric. The rotating plate has two symmetrically distributed limiting grooves inside, with a slot between the two limiting grooves, and the slot communicating with the two limiting grooves. Two symmetrically distributed sliders are fixedly connected to the bottom of the connecting plate, and the sliders are slidably mounted within the limiting grooves. Two mutually movable baffles are provided inside the slot, with both ends of the baffles slidably connected to the inner wall of the slot. In this utility model, by operating the drive assembly, the distance between the two baffles decreases, reducing the degree of compression → reducing friction → reducing the sliding resistance of the sliders. At this time, the driver and passengers can easily push the connecting plate, improving operational convenience (especially suitable for one-handed adjustment scenarios).

The present invention discloses a linear track with adjustable increased sliding resistance. A metal plate is fixedly connected to the side surface of a slider sliding on the linear track, and a magnetic adjustable mechanism is arranged outside the plate. The magnetic adjustable mechanism is composed of a magnet and a gap adjustable mechanism. The gap adjustable mechanism is composed of a backrest, a sliding rod, and a sliding connection bracket. The magnet is closely attached to the inner side of the backrest. One end of the sliding rod is fixedly connected to the outside of the backrest, and the other end of the sliding rod passes through a sliding hole on the sliding connection bracket and can move through it, so that the magnet backrest and the sliding rod move synchronously, thereby adjusting the gap between the magnet and the metal plate, and further changing the magnetic force. The present invention increases the sliding resistance of the linear track, reduces the sliding distance, and the sliding or vibration amplitude is easy to design and control.

Provided is a wire-equipped stent having further improved ease of handling. A wire-equipped stent 10 includes a wire 12, a stent 11 connected to a distal side D1 end portion of the wire 12, and a highly smooth portion provided at or adjacent to a distal side D1 portion of the wire 12. The wire-equipped stent 10 is adapted for insertion into and use in a catheter including a structure including a mesh coil and a spiral coil overlapping each other.