31results about How to "Small driving force" patented technology

The invention belongs to the technical field of high-temperature alloy heat treatment, and relates to a method for inhibiting abnormal growth of GH6783 alloy grains. The method comprises the following steps: step 1, determining the non-growth temperature of GH6783 alloy grains; 2, after the temperature of the heat treatment furnace reaches the non-growth temperature, the GH6783 alloy bar is placed in the furnace, timing is started after the temperature in the furnace reaches the non-growth temperature again, and heat preservation is conducted for the appointed time A; and 3, the GH6783 alloy bar is slowly cooled to the beta-phase aging temperature along with the furnace and then subjected to heat preservation for 8-10 h, and after heat preservation is finished, the GH6783 alloy bar is discharged out of the furnace and subjected to air cooling. According to the method, the abnormal growth phenomenon of crystal grains after solution heat treatment of the GH6783 alloy bar can be remarkably inhibited, and the structure uniformity of the GH6783 alloy is improved.

A method for manufacturing high-strength, hydrogen-embrittlement-resistant bolts based on microsphere shot peening, and the bolts themselves, are disclosed. The manufacturing method includes: S1, cold heading and thread rolling of alloy structural steel billets to obtain bolt forming parts; S2, surface cleaning of the bolt forming parts, followed by overall surface peening with microspheres driven by high-pressure air; after overall peening, targeted strengthening peening treatment is performed on stress concentration areas such as thread roots, undercut grooves, and flange transition corners to obtain reinforced bolt parts; S3, the reinforced bolt parts are cleaned, dried, and phosphated to obtain finished bolt parts. This design, through a "overall + targeted" composite microsphere shot peening strategy, introduces a uniform residual compressive stress field and a micron-level fine-grained plastic deformation layer on the bolt surface, forming a thicker strengthening layer in stress concentration areas, significantly improving the fatigue strength and delayed fracture resistance of high-strength bolts, while ensuring uniform surface roughness and stable assembly friction coefficient.

This invention relates to the field of polishing machines, specifically disclosing a concrete polishing machine with protective functions. It includes a base with a hand handle, a mounting plate on the base, a polishing assembly on the base, a drive assembly connected to the polishing assembly on the base, a push assembly on the base, a brake assembly between the push assembly and the polishing assembly, and an inflation assembly on the mounting plate. This invention provides primary buffering, secondary buffering, braking, and support functions. When the hand is released, it effectively counteracts the polishing machine's continuous spinning and irregular movements, providing effective protection against abnormal movements from multiple angles. This ensures the polishing machine quickly stops working after an malfunction, reducing collision damage and preventing malfunctions, minimizing threats to surrounding workers, improving work efficiency, and accelerating construction progress.

The application relates to the technical field of sealing joints, in particular to a sealing joint for a high-pressure hydrogen gas conveying pipeline, which comprises a male connector seat, a female connector seat and a valve core group, the joint ends of the male connector seat and the female connector seat are respectively provided with lock plates and flange joint plates, the outer periphery of the flange joint plate is provided with wedge locking blocks and screw rods, the opposite surfaces of the lock plate and the flange joint plate are respectively provided with first sealing ring groups and second sealing ring groups, the surface of the lock plate is provided with a sealing gasket, the valve core group comprises a core shaft, a spring, a valve sleeve and a guide head, and a gradually tapered section, a throat section and a gradually expanded section flow channel structure are formed between the valve sleeve and a flow channel. The male connector seat and the female connector seat are quickly locked and connected through the wedge locking blocks, a composite sealing structure is formed through labyrinth sealing and elastic sealing, the static pressure of a joint jointing area is reduced through the Venturi effect, the hydrogen gas leakage driving force is reduced, a multilayer leakage prevention mechanism is formed, and the sealing joint has the advantages of good sealing performance, high connection stability and suitability for high-pressure hydrogen gas conveying working conditions.

The utility model discloses an exposure scanning shaft drive mechanism, exposure scanning shaft drive mechanism adopts the mode of linear motor module drive, eliminates mechanical transmission gap, improves the scanning speed of exposure scanning shaft, improves the positioning accuracy of vertical exposure equipment, satisfies the high accuracy requirement of exposure machine field. The counterweight of the present application is connected with the mounting base, and the counterweight offsets the weight of the lens module, which can reduce the driving force when the linear motor module is driven, so that the exposure scanning shaft drive mechanism is suitable for heavy load occasions. At the same time, the problem of the lens module falling due to its own weight after the linear motor module is powered off can be avoided, and the adaptability of the exposure scanning shaft drive mechanism is improved. In addition, the exposure scanning shaft drive mechanism of the present application has simple and reliable structure, low noise and low wear, which greatly reduces the maintenance cost in the later period.

The utility model discloses a kind of contact mechanism, load switch and electric meter, it is related to low-voltage electrical apparatus technical field.The contact mechanism includes shell and the moving contact, static contact and elastic member being set in shell, the one end of moving contact is connected with elastic member, the other end is used to be combined with static contact and be opened and closed, both ends of moving contact can be movable relative to static contact, elastic member is used to apply elastic force to moving contact in the opened and closed state to assist closing, elastic member is also used to apply elastic force to moving contact in the closed state to increase contact pressure.The contact mechanism can solve the problem that closing driving force is larger in prior art, energy consumption is higher, economic benefit is poorer, and contact pressure is smaller, reliability is poorer.

This invention relates to the field of construction machinery technology, providing a paver control method, a paver travel system, a paver, and electronic equipment. The paver control method includes acquiring the current discharge pressure of the travel pump; determining that the current discharge pressure of the travel pump is greater than a preset pressure, where the preset pressure is less than the design discharge pressure of the travel pump; and controlling at least one of the speed and acceleration of the paver's travel mechanism to decrease until the current discharge pressure of the travel pump is determined to be less than or equal to the preset pressure. The paver control method provided by this invention addresses the defect in existing technologies where sudden stop of the travel mechanism leads to rollover. By controlling the discharge pressure of the travel pump, it ensures that the travel pump operates stably, providing stable driving force to the travel mechanism, thus achieving controllable paver movement.

The application relates to the technical field of relays, in particular to a novel magnetic latching relay which comprises a shell, a contact mechanism fixedly installed in the shell, the contact mechanism comprising a first static foot and a second static foot, the first static foot and the second static foot being fixedly installed on one side in the shell, a first static contact being fixedly installed on the first static foot, a second static contact being fixedly installed on the second static foot, a rotating mechanism being rotatably connected to one side in the shell and located between the first static foot and the second static foot, two dynamic contacts being fixedly installed on the rotating mechanism and used for cooperating with the first static contact and the second static contact to realize circuit on-off, a pushing assembly being fixedly installed in the shell and used for driving the rotating mechanism to rotate, and an electromagnetic assembly being fixedly installed in the shell and used for driving the pushing assembly, through rotation of the rotating mechanism, the two dynamic contacts on the rotating mechanism are respectively attached to the first static contact and the second static contact, the single-contact stroke is shortened, and the working efficiency of the device is improved.

The utility model discloses a computer dust adsorbing and removing assembly, and relates to the technical field of dust removing assemblies, the computer dust adsorbing and removing assembly comprises a middle layer plate, an upper cover plate and a bottom cover plate, the four corners of the middle layer plate are all rotatably connected with rotating shafts in an inserted mode, and each rotating shaft comprises three first rotating shafts and a second rotating shaft; a first transmission chain wheel and a second transmission chain wheel are fixedly connected to the shaft wall, located below the middle-layer plate, of the three first rotating shafts and the shaft wall, located below the middle-layer plate, of the second rotating shaft in a sleeving mode correspondingly, and the first transmission chain wheel and the second transmission chain wheel are in transmission connection through a transmission chain belt. The masking paper feeding device has the advantages that masking paper is discharged through the unwinding roller, the masking paper is guided by the rubber guide roller to move close to the surface of a computer, and dust is effectively adsorbed and removed. The adhesive force between the masking paper and dust is strong, and no adhesive residue is left, so that the thoroughness and safety of dust removal are ensured.

This utility model relates to a locking mechanism for a multi-point lock, a door lock, and a door lock suitable for wide cabinet doors. The locking mechanism includes a locking base, a steel bolt, a drive shaft component, and a shaft drive assembly. The drive shaft component is rotatably mounted on the locking base. The shaft drive assembly includes a driven member mounted on the input shaft of the drive shaft component and an active member located to the side of the drive shaft component and sliding linearly. The driven member is a rocker arm, which includes a mounting portion fixed to the input shaft. The mounting portion is connected to a rocker arm extension extending radially along the input shaft. The active member has a drive connection end connected to the rocker arm extension, which is movable relative to the rocker arm extension along the length of the rocker arm extension. It has the advantages of high transmission efficiency and labor-saving operation.

This application discloses a feeding device for a coagulation analyzer, comprising: a mounting cavity, a reagent dispensing head, a dust cover, a spring assembly, a through hole, a test tube rack, a lifting mechanism, a lifting block, and a lever amplification mechanism, all disposed within the coagulation analyzer. When the lifting mechanism drives the test tube rack to rise, the lifting block contacts and pushes the second end of the lever arm upward. The lever arm rotates around its fulcrum axis, causing the first end to move downward and abut against the inner wall of the mounting cavity. Simultaneously, the second end lifts the dust cover, overcoming the preload of the spring assembly and allowing the outlet end of the reagent dispensing head to pass through the through hole. This invention amplifies the lifting force of the lifting block through the lever amplification mechanism, enabling a smaller lifting force to overcome the preload of the spring assembly on the dust cover. This significantly reduces the driving force required for the electric push rod, thereby reducing the system load. The rotational movement of the lever arm is smoother than direct pushing, effectively reducing impact vibration and avoiding interference with the reagent dispensing head and sample test tubes.

The utility model discloses a height difference torque vector distribution device which comprises a differential mechanism, a left half shaft is connected to one end of the differential mechanism, and a right half shaft is connected to the other end of the differential mechanism; a motor is arranged on one side of the left half shaft, a first-stage speed reduction assembly is arranged on the motor, a third-stage speed reduction assembly is arranged on the left half shaft, and the third-stage speed reduction assembly is in transmission connection with the first-stage speed reduction assembly through a second-stage speed reduction assembly; the three-stage speed reduction assembly transmits received power to the planetary gear assembly, and a first gear ring and a second gear ring on the planetary gear assembly transmit the power to a shell and a left half shaft of the differential mechanism respectively. The beneficial effects of the utility model are mainly reflected in that the arrangement has a torque distribution function, and gives consideration to the energy consumption problem and driving experience in yaw dynamics control; and the energy consumption problem and the driving experience in yaw dynamics control are considered.

A method for preparing high-strength, high-elongation seamless magnesium alloy tubes and its application are disclosed, belonging to the field of magnesium alloy technology. The preparation method includes the following steps: material preparation—melting—preparation of alloy billet—pre-extrusion—piercing needle extrusion—double-stage aging heat treatment—annealing heat treatment, to obtain high-strength, high-elongation Mg-Zn-Nd-Y-Zr seamless magnesium alloy tubes; and the application of high-strength, high-elongation Mg-Zn-Nd-Y-Zr seamless magnesium alloy tubes prepared by the above method in the preparation of oxygen storage cylinders is also disclosed. This invention adopts a micro-alloying design, introducing trace amounts of rare earth elements Y and Nd into ordinary Mg-Zn-Zr alloys. Through the melt purification of rare earth elements Y and Nd, the synergistic strengthening and refining effect of forming dispersed LPSO with Zn elements, high-quality ingots are prepared, thereby realizing the forming of seamless magnesium alloy tubes. This solves the problem of extrusion bar head bending during traditional extrusion and improves material utilization.

The utility model discloses plunger assembling equipment which comprises a plunger rod clamping assembly, a positioning assembly, a first driving assembly and a flattening assembly. The positioning assembly is arranged on one side of the plunger rod clamping assembly; the flattening assembly comprises two pressing blocks, the two pressing blocks are each provided with a guide groove, the two guide grooves are oppositely and obliquely formed, a guide rod is arranged in each guide groove, a second driving assembly is arranged on one side of each guide rod, and the two guide rods are both connected with the second driving assembly. The two guide rods are driven by the second driving assembly to move along the guide grooves, so that the two pressing blocks are relatively close to or away from each other, and one end of the plunger rod is flattened. The plunger rod, the spring and the shell can be automatically assembled together, automation is achieved, the working efficiency is improved, and the consistency of products is improved. The guide groove obliquely formed in the pressing block can increase the clamping force of the pressing block, the solid iron rod can be flattened through small force, and driving force is saved.

This invention provides a heat treatment process for the weld seam of a wind turbine tower frame, relating to the field of metal material heat treatment technology, including the following steps: S1: Pre-treatment of the fillet weld seam area of ​​the wind turbine tower frame; S2: Gradient heating treatment at the same heating rate: first heating the fillet weld seam area to 280±20°C for a first heat preservation, then continuing heating to 450°C±20°C for a second heat preservation, and finally continuing heating to 580°C±20°C for a third heat preservation; S3: After the heat preservation is completed, the workpiece is cooled. This invention can not only eliminate welding residual stress and prevent the initiation of delayed cracks and fatigue cracks, but also significantly improve the microstructure of the weld metal, increasing its low-temperature impact toughness by more than double, thereby greatly improving the operational reliability of wind turbine towers and solving the problem of tower frame cracking in winter.

The invention relates to a movable connecting rod compressor which is mainly composed of a left novel movable connecting rod front portion, a movable connecting pin, a left novel movable connecting rod rear portion, a right novel movable connecting rod, a swing rod, a swing rod installation structure and the like. The problem that abrasion is difficult to eradicate due to the poor lubricating condition of the crosshead pin is solved, a threaded connection structure is replaced with the movable connecting pin technology, the problem that stress of threads at the end of a piston rod is seriously concentrated inevitably is solved, the problem of fatigue crack damage of the threaded connection position is solved, energy is saved, and the service life of a compressor is prolonged. And the significant progress of the compressor technology is achieved.

The utility model discloses a litter box, include: main casing, be equipped with along the sand basin and the collection of the first direction in proper order distribution's warehouse, and the top side of sand basin and the top side of collection warehouse are all open mouth arrangement, the plough of climbing, the plough of climbing sets up in sand basin, and the top of plough of climbing has the connecting shaft of setting up perpendicularly to the first direction, two mounting brackets, two mounting brackets are opposite and are equipped with in the vertical direction interval of the first direction in the both sides of main casing, and the both ends of connecting shaft are rotatably connected two mounting brackets, and one mounting bracket is equipped with the rotary drive subassembly, and the one end of connecting shaft is close to rotary drive subassembly and is equipped with the connecting portion of bending to the side of connecting shaft, and rotary drive subassembly connects the connecting portion for driving plough of climbing rotates around connecting shaft. The utility model technical scheme has reduced the power of the rotary drive subassembly of litter box, makes litter box more energy -conserving.

The utility model discloses a kind of axial flow type flow regulating valve with balance observation hole, it is related to valve technical field, including valve body, the transmission rod being vertically and perpendicularly arranged on the upper portion of valve body and the valve stem assembly being arranged in the inside of valve body and the linkage of transmission rod, it is characterized in that, the two sides of the horizontal direction of the valve body are equipped with the import and export being connected with valve body, transmission rod cavity is vertically and perpendicularly arranged in the upper portion of valve body, the transmission rod is arranged in transmission rod cavity, the valve body is equipped with the balance hole being connected with transmission rod cavity, pressure balance valve is installed in the balance hole.The utility model is arranged on the valve body balance hole being connected with transmission rod cavity and installs pressure balance valve on balance hole, can effectively balance the pressure inside and outside transmission rod cavity, make transmission rod cavity with external atmospheric pressure balance.

The utility model relates to dish-washing machine drainage technical field discloses drainage assembly and dish-washing machine, and drainage assembly includes water cup and drainage pump, and water cup includes the water cup main part of having water passing cavity and sets up the drainage interface of water cup main part side part, and the bottom wall of water passing cavity is equipped with first drainage port, and the drainage interface has the drainage channel of communication with first drainage port in it, and the drainage pump includes drainage pump body, output shaft and cutting blade, and drainage pump body installs in the drainage interface, and output shaft sets up along the horizontal direction, and the end of output shaft away from drainage pump body extends to the meeting place of drainage channel and first drainage port, and cutting blade is fixed on the end of output shaft, and the utility model guarantees that food residue is fully pulverized by cutting blade before discharging, avoids its accumulation in the bottom of drainage channel, reduces the frequency that user washes filter screen, reduces the risk that user complains because of the poor drainage, thereby promotes the use experience of user.

This invention relates to the field of wire rope production technology, specifically to a double-parallel twist crane wire rope and its production process using a double-strand synchronous low-stress twisting method. The wire rope body has a 9-strand parallel twist structure, designated 3X40SF / 3X24F-3X7, comprising: an inner layer of 3 strands with a 3X7 structure twisted in an S-direction parallel twist; and an outer layer of 6 strands twisted in an S-direction parallel twist, with 3 strands having a 3X40SF structure and 3 strands having a 3X24F structure. The inner and outer layers are joined together using a Z-direction parallel twist. The wire rope body is prepared using a pre-tensioned tubular double-parallel twisting process. This invention, through a pre-tensioned tubular double-parallel twisting device, applies a constant and precise online pre-tension force simultaneously during the twisting process, forcing the wire to undergo lattice slip and dislocation reorganization during plastic deformation. This significantly eliminates residual stress generated during twisting and forging, solving the problems of low efficiency and uneven results associated with traditional offline pre-tensioning.

The pinch valve of the present application comprises a valve body, a lever, a reversing seat, an electromagnetic valve body and a pinch mechanism; the valve body comprises a first valve part and a second valve part which are in communication with each other, and the second valve part is provided with a slot for the soft tube to pass through; the lever is rotatably installed in the valve body and comprises a long rod part and a short rod part; the reversing seat is installed in the first valve part in a liftable manner and is in driving connection with the long rod part; the electromagnetic valve body comprises a movable iron core which is in driving connection with the reversing seat and is used to control the lifting of the reversing seat; the pinch mechanism is installed on the second valve part and comprises a first pinch member and a second pinch member which are oppositely arranged, the first pinch member is in driving connection with the short rod part and can move towards the second pinch member under the driving of the short rod part to control the opening / closing of the soft tube; and the transmission arm of the long rod part is smaller than that of the short rod part. In this way, the driving force required for the operation of the pinch valve can be reduced and the moving stroke of the movable iron core can be reduced.

The invention relates to the technical field of chemical equipment, and discloses a quick assembly device and a quick assembly method of a modular ammonia still tray and an ammonia still system. The quick assembly device comprises a tower body, a maintenance channel, a treatment cover and a push-out mechanism. A tower tray capable of horizontally moving is arranged in the tower body, a maintenance channel with a detachable cover is arranged on the side wall of the tower body, the treatment cover is fixed on the outer wall of the tower body and is communicated with the maintenance channel, and a treatment cavity is formed in the treatment cover; the push-out mechanism is located on the side, opposite to the maintenance channel, of the tower tray in the tower and comprises a pushing block and a driving piece. And when the opening cover is opened, the driving piece drives the material pushing block to push the tray into the processing chamber through the maintenance channel. According to the device, the tray is laterally moved out, so that non-entering type rapid maintenance is realized, the production interruption time is reduced, the safety risk that personnel enter a limited space for operation is avoided, and the maintenance labor intensity is reduced.

The utility model relates to a millimeter wave radar device with a self-cleaning heat dissipation structure, which comprises a heat dissipation mechanism, a cleaning mechanism and a rotating mechanism, the heat dissipation mechanism comprises a fixed part, a heat dissipation fan and at least two heat dissipation fins, the heat dissipation fan and the at least two heat dissipation fins are arranged on the fixed part, the heat dissipation fins are obliquely arranged, and the cleaning mechanism comprises a protruding plate and at least two cleaning frames. The cleaning frame is slidably arranged on the cooling fins in a sleeving mode, the protruding plate is fixed to one end of the cleaning frame, the rotating mechanism is in driving connection with the protruding plate, and the rotating mechanism is located between the cooling fan and the cooling fins. Compared with the prior art, when the heat dissipation mechanism is started each time, the heat dissipation fins can be cleaned, the heat dissipation effect of the heat dissipation fins is guaranteed, and the heat dissipation device has the advantages of being simple and reliable in structure and the like.

The utility model relates to the technical field of forklifts, and discloses a telescopic forklift with a leveling function, which comprises a cab, a fork frame component, a movable component, a support rod and a base, and is characterized in that a screw is spirally inserted into a screw hole to correspond to the insertion of a sliding plate and fix the position of a center block after the center block moves; according to the lever principle, the extension of the force arm can reduce the driving force required by the telescopic rod and reduce the pressure load of the second hydraulic rod, so that the telescopic rod can easily push the force bearing plate to rotate and move, and the force bearing assembly can be conveniently adjusted. And the fork frame can be easily kept in a horizontal state when the materials are inserted and taken, the situation that the materials inserted and taken by the fork frame are too heavy, consequently, stability of hydraulic pressure of the second hydraulic rod is affected is prevented, and failure and leakage of a telescopic rod sealing piece caused by too large pressure load are avoided.

The utility model discloses a kind of heel mounting machine pressing plate assemblies, including fixed seat, shoe heel press, fixed seat is connected on the heel mounting machine lower pressing device, the shoe heel press is hinged in the lower part of fixed seat, the rear side of shoe heel press is connected with a pull rod, pull rod upper end is connected with linear drive device, the linear drive device drives pull rod to move and drive shoe heel press to swing back to facilitate taking and placing shoes.The utility model discloses a kind of heel mounting machine pressing plate assemblies, which drives pull rod to move and drive shoe heel press to swing back to facilitate taking and placing shoes by linear drive device, only need to drive shoe heel press, without driving the lower pressing device of heel mounting machine above, the driving force required is small, and the swing stroke is short, action is rapid, and production efficiency is high.

The invention provides a bending structure, an insertion part and a medical catheter, and relates to the technical field of medical instruments. The device comprises a lining bending pipe and a traction rope, the lining bending pipe is of a pipe body structure which is continuously arranged in a closed mode in the circumferential direction, the far end of the traction rope is fixedly connected relative to the far end of the lining bending pipe, and the traction rope can apply traction force to the lining bending pipe; the action direction of the traction force deviates from the axial direction of the lining bent pipe. Compared with the prior art, the bending starting state can be optimized, the driving force needed by bending operation is reduced, the difficulty that the whole catheter achieves the bending action is reduced, and therefore the bending response performance and the control efficiency are improved.

The invention discloses a double-cavity balance type piezoelectric valve which comprises a valve seat, a valve core, a pressure sensor, a first pressure sensor and a second pressure sensor. The piezoelectric valve plate is arranged in the cavity and divides the cavity into a first chamber and a second chamber, the first air outlet communicates with the first chamber so that the first chamber can exhaust air to the outside through the first air outlet, and the piezoelectric valve plate is suitable for deforming to control the first air outlet to be opened and closed; the air inlet flow channel comprises an air inlet, a first branch and a second branch, the first branch and the second branch are separated from the air inlet and are independent fluid channels, and after fluid of the air inlet is divided, the fluid enters the first cavity and the second cavity independently through the first branch and the second branch. Therefore, when no air flow is output from the first cavity and the second cavity, the air pressure in the first cavity and the air pressure in the second cavity are kept balanced, the valve plate does not need to additionally overcome pressure difference deformation, then the driving force needed for opening or closing the valve by the piezoelectric valve plate is reduced, and the response speed of the valve is higher.

A kind of micro air floating measuring head based on diamond vibrator drive belongs to high-precision measurement and electromechanical technical field;Two air floating short sleeves are fixedly connected on the base of the device, air floating guide rail is installed between the base and air floating short sleeve, measuring needle and metal target are respectively fixedly connected at the two ends of air floating guide rail;Diamond vibrator is installed in the middle of air floating guide rail, pre-tightening hinge is installed on the periphery of diamond vibrator, the matching relationship between pre-tightening hinge and both sides of diamond vibrator is interference fit, pre-tightening hinge is fixedly connected with motor cover shell through upper mounting hole, motor cover shell is installed between two air floating short sleeves and is fixedly connected on the base, and capacitor sensor is installed on the side facing metal target.The device has no Abbe error in principle, has active trigger and self-locking function, so it has the advantages of small trigger measurement force and high measurement precision.

The utility model belongs to the technical field of beam limiter, specifically relates to a beam limiter additional filter device, including filter assembly and motor, filter assembly includes the base plate, one end of base plate is equipped with the mounting hole, is equipped with the filter piece on the mounting hole, the other end of base plate is equipped with the shaft sleeve, the shaft sleeve is connected with motor, and motor is used for driving base plate to rotate with the shaft sleeve as the center, when using, make filter piece cover the ray export of beam limiter through motor drive filter assembly rotation, filter harmful rays, simple, fast, and the whole device structure is simple, small, can save the installation space, is favorable to the miniaturization design of beam limiter.