125results about How to "Increase the counterweight" patented technology

The invention relates to a positioner device or large-bearing moving device provided with a vertical shaft needing to move vertically and applied to a robot welding system or manual welding, in particular to a small-resistance anti-stall lifting device with the vertical shaft needing to move vertically. The small-resistance anti-stall lifting device comprises a vertical column assembly, a ball screw transmission system, a balance system, an emergency brake system and the like, wherein the vertical column assembly comprises a base, a vertical column, a support, a moving frame and a cantilever beam. A servo motor transmits power through a coupler which is connected with a ball screw, and therefore, the moving frame drives the cantilever beam to move vertically. The moving frame is connected with the cantilever beam, balancing is achieved through chain transmission and counter weight, and resistance is negligible when the vertical shaft moves vertically. A gear rack is arranged at rear of the small-resistance anti-stall lifting device and matched with a laser sensor to measure the speed, when the speed exceeds a set value of a brake, the judgement that the small-resistance anti-stall lifting device stalls can be performed, an outage signal is transmitted to the brake arranged at the bottom end of the screw and matched with the screw through a gear, the brake performs braking hold, emergency brake is achieved, and safety accidents caused by stall due to damage to the ball screw transmission system are avoided.

The invention discloses an underground pipeline dredging method. The underground pipeline dredging method is characterized in that sludge in a pipeline is gathered to a designated position through a pipeline dredging device and then removed out of the pipeline through external force. By means of the underground pipeline dredging method, the dredging effect of the pipeline can be effectively improved, the amount of sludge in the pipeline is greatly lowered, the occurrence ratio of sludge in the pipeline is controlled below 5%, smoothness of the pipeline is ensured, and drainage efficiency of an urban drainage system is improved.

The invention discloses a suspended self-support type piling method and a piling machine. The suspended self-support type piling method comprises the following steps: forwards extending a first main beam and a second main beam, and suspending a front-end supporting joining beam above a to-be-constructed pile foundation; horizontally mounting the to-be-constructed precast pile on the front side surface of a stand column tower frame, and fixing the to-be-constructed precast pile; starting an amplitude-varying winch, shortening a distance between a first slide wheel and a second slide wheel, realizing amplitude varying of the stand column tower frame; while amplitude varying of the stand column tower frame achieves a predetermined amplitude-varying angle, extending an amplitude-varying telescopic oil cylinder, and rotatably connecting a second slide support base with an amplitude-varying oil cylinder fixing base through a movable insertion pin; and shrinking the amplitude-varying telescopic oil cylinder, and lifting the stand column tower frame to a predetermined angle which corresponds to the to-be-constructed pile foundation. The key point of the suspended self-support type piling method is that the original bridging mechanism is utilized to perform collaborative design of the process and equipment for suspended piling for a heavy ultra-long precast pile, structure collaborativedesign of a bridging machine and the piling machine is also performed, a supporting position at the front end does not need to provide, the construction cost is reduced, and progress of works is improved.

The invention discloses a basement additionally built in an existing plant. A static pressure pile is struck into the ground of an underground excavation space in the existing plant, a raft plate anda bearing table are anchored at the upper end of a pile foundation of the static pressure pile or the slightly low appropriate position of the pile foundation, an anti-seepage water-stop steel plate is welded to the middle of the additional bearing table, and mortar is poured; additional basement columns are connected and supported to the positions between the additional bearing table and the bottom faces of original columns of the plant; and longitudinal and transverse reinforced concrete beams and the reinforced concrete ground are arranged on the original first-layer ground. A constructionprocess has the key characteristics that multi-time transformation for supporting force of the original columns is just like making mobile warfare, contradictions are transferred, and column and pileconversion is completed in the transformation process; the construction process specifically comprises the steps: adding of a support and the static pressure pile, switching of the supporting force from inside to outside, basement excavation and original bearing table emptying, original bearing table dismantling, adding of the basement columns, switching of the supporting force from outside to inside, and static pressure pile cutting off; and the construction process is particularly suitable for the basement additionally built in the existing plant.

The invention relates to a slurry extractor and an extraction method thereof. The slurry extractor comprises a cylinder barrel, a second lifting rope and a sleeve pull rod; the top of the cylinder barrel moves up and down through the traction of the sleeve pull rod and the second lifting rope. The slurry extractor and the extraction method thereof are characterized in that a slurry inlet is formed in the center of the top of the cylinder barrel, a slurry seal piece matched with the slurry inlet is arranged in the cylinder barrel, a seal piece pull rod is vertically fixed in the center of the slurry seal piece, the seal piece pull rod moves up and down through the traction of a first lifting rope, a lifting screw is arranged in the center of the bottom of the cylinder barrel, and the lifting screw is equipped with an annular balancing weight. The slurry extractor can be lowered to different depths of slurry liquid and simultaneously complete grouting and sealing of the slurry liquid, and the independence of the slurry liquid at the depth is guaranteed. Meanwhile, the balancing weight of the slurry extractor can be increased according to the depth, density and the size of buoyancy of the extracted slurry liquid, and it is guaranteed that the slurry extractor can sink to a specified depth, so that the extraction work of the slurry liquid at different depths can be completed.

The invention relates to an alarm type electronic fence which is composed of a plurality of vertical rods. The vertical rods are coaxially sleeved with sheathes. Hang buckles are arranged on each sheath at intervals, LED lamp straps are hung between the hang buckles on the same horizontal line on every two adjacent vertical rods, the vertical rods are hollow rods, power supplies are installed at the positions, connected with bases, inside the vertical rods, wire penetrating holes are formed in the vertical rods, the LED lamp straps are connected with the power supplies through the wire penetrating holes, sensor bases are installed on the tops of the vertical rods respectively, infrared split sensors are installed between the sensor bases on the adjacent vertical rods, and the sensor bases are provided with ultrasonic wave sensors. According to the alarm type electronic fence, the infrared sensor assembly is used for carrying out scanning and early warning on objects within the vertical rod preset range, and the ultrasonic wave sensor assembly is installed in a middle sensor installation sleeve and used for carrying out detection scanning and early warning on construction sites where the vertical rods are located, particularly objects for underground and borehole operation and the like.

The invention relates to an energy-saving and noise-reducing vacuum pump, which comprises a motor, a motor shell, a pump body and a pump cover, wherein both ends of a motor shaft are connected with a left pull rod and a right pull rod respectively; the head parts of the left pull rod and the right pull rod are fixedly connected with a film pressing piece and stretch into a left pump chamber and a right pump chamber; and a membrane is arranged between the head parts of the left pull rod and the right pull rod and the film pressing piece. The vacuum pump is characterized in that eccentric wheels are arranged between both ends of the motor shaft and the left pull rod and the right pull rod respectively. After the balance weight of the eccentric wheels is increased, the vacuum pump runs steadily during working, and the deflection phenomena can be avoided. The moving phase of the two pull rods is guaranteed to be 180 degrees so as to reduce various mechanical noises caused by gaps such as the gap between the motor shaft and a motor bearing, the gap between the motor bearing and a motor end cover, the gap between the eccentric wheels and the bearing, the gap between the bearing and the pull rods, and the like, and the mechanical noise is controlled to be below 45 decibels so as to meet the requirements on the noise of household appliances.

The invention relates to the technical field of metal plastic forming process and equipment, and provides a double rotating shaft type electric servo flexible skew-rolling mill. The double rotating shaft type electric servo flexible skew-rolling mill includes a base unit, a machine frame synchronization unit, two rolls, two main shaft rotation systems, an axial thrust system, two roll inclinationangle adjustment systems, a roll pitch adjustment system and a counterweight unit. The base unit supports a whole machine body of the skew-rolling mill. The axial thrust system exerts axial thrust ona blank. The machine frame synchronization unit ensures that the two machine frames are pressed down synchronously in a centring mode. The two main shaft rotation systems drive the rotation of the tworolls. The inclination angle adjustment system adjusts the inclination angle between the axis line of the two rolls and the axis line of the blank, the roll pitch adjustment system adjusts the roll pitch of the two rolls, and the counterweight unit reduces the torque required by the inclination angle adjustment system. Driven by a servo motor and controlled by a servo driver, the double rotatingshaft type electric servo flexible skew-rolling mill has the advantages of compact structure, high degree of automation, low vibration noise, wide rolling range and the like, and is suitable for flexible skew rolling of large shaft parts.

The invention provides a crane counterweight hoisting system. A first control valve bank and a first oil cylinder are in pilot connection. A second control valve bank and a second oil cylinder are in pilot connection. The first oil cylinder and the second oil cylinder are both double-acting oil cylinders. The crane counterweight hoisting system also comprises a synchronous selection control valve which is arranged between a main control valve bank and the first and second oil cylinders and contains a first working state and a second working state. In the first working state of the synchronous selection control valve, the first oil cylinder is separately controlled by the first control valve bank, and the second oil cylinder is separately controlled by the second control valve bank. In the second working state of the synchronous selection control valve, a lower rod port of the first oil cylinder is connected with an upper rod port of the second oil cylinder through the synchronous selection control valve so as to connect the first oil cylinder and the second oil cylinder in series. Thus, synchronization action of the first and second oil cylinders is realized. According to the invention, the problem that synchronization action of counterweight oil cylinders cannot be reliably realized by a crane counterweight hoisting system is solved.

The invention relates to a water drainage control method for a multi-tub washing machine. The multi-tub washing machine at least comprises a first washing tub and a second washing tub. The method comprises the following steps: when the first washing tub reaches a water drainage procedure, judging whether the second washing tub is under water drainage or dehydration or not, and if the second washing tub is under water drainage or dehydration, starting draining water from the first washing tub until dehydration of the second watching tub is finished; if the second washing tub is not under water drainage or dehydration, judging whether to start draining the water from the first washing tub only after dehydration of the second washing tub is finished or not.

The invention provides a lateral pushing device for preventing a columnar sampler from toppling and a using method. the device comprises four sets of propellers which are arranged in a cross-shaped symmetrical mode are arranged on the upper surface of the side pushing device, and four sets of pulley telescopic supports are installed in the side pushing device in a cross-shaped symmetrical mode; apropeller control bin, an attitude sensor, a pressure gauge and six sets of rechargeable battery packs are further annularly and fixedly installed in the side pushing device in sequence. According tothe technical scheme of the invention, the dumping posture of the columnar sampler in the underwater sampling process can be effectively corrected, the sampling success rate of an underwater columnarsediment sample is remarkably improved, the balance weight of the sampler and the length of the sampling pipe can be increased as required on the basis, the sampling length requirement of a marine sediment sample is met, and the time and labor cost of a sampling ship is saved. The lateral pushing device is wide in application range, is suitable for upgrading and reconstruction of an existing common columnar sampler with any caliber, has a certain application market, and can reduce development and manufacturing cost.

The pumping unit includes a main frame, a support on the frame, a motor mounted on one platform in the support, a brake mounted on the motor, a control device connected to the motor and the brake and outputting voltage in set frequency to the motor, a drive device connected between the motor output shaft and the drive shaft, a pumping rod, a polished rod eye, a balance weight, a driving shaft mounted on the support, a driving rope to connect the pumping rod and the polished rod eye to the balance weight, a driving wheel mounted on the driving shaft, a winch set on the support and connected to the balance weight, and a hoist rope. The present invention elevates the balance weight with the winch, rather than directly with the motor, and can lower the power of the motor obviously.

The invention discloses a multi-drum washing machine, and relates to the technical field of washing machines. The multi-drum washing machine solves the problems of large space occupation, vibration and noise of a single-drum washing machine, and comprises a tank body, wherein the tank body is internally provided with at least one drum washing unit and a plurality of impeller washing units, the impeller washing units are arranged side by side and fixedly connected through connecting pieces, the drum washing units and the impeller washing units are fixedly connected through rigid connecting pieces, and the drum washing units are connected to the tank body through a fixing assembly. The multi-drum washing machine is used for washing clothes.

The invention provides a manual motor tricycle, and belongs to the technical field of tricycles. A manual motor tricycle comprises a tricycle body, a single-wheel suspension structure, a double-wheelsuspension structure, an adjusting assembly and a direction control device. The single-wheel suspension structure with a front wheel and the double-wheel suspension structure with a rear wheel are respectively arranged at the front end and the rear end of the tricycle body; and an adjusting assembly connected to the double-wheel suspension structure and the direction control device for controllingthe front wheels to steer and acting on the adjusting assembly are arranged on the tricycle body. When the front wheels are steered, the adjusting assembly can be pulled through the direction controldevice; the double-wheel suspension structure is driven to deflect towards the side opposite to the steering direction; and the tricycle body inclines towards one side of the steering direction, so that the vehicle is stressed in a balanced manner, structural parts are prevented from being damaged, the service life is prolonged, safety accidents such as rollover are avoided; and the balance weight of the vehicle is increased, the stability of the vehicle is higher, and use and popularization of the motor tricycle are better facilitated.

The invention discloses a heat dissipation and anti-falling protection device for electronic equipment, and the device comprises a housing, a first-stage cavity and a second-stage cavity which are communicated with each other are formed in the bottom end of the housing, water cooling mechanisms are arranged in the first-stage cavity and the second-stage cavity, storage side grooves are correspondingly formed in two sides of the housing, and supporting mechanisms are arranged in the storage side grooves. The first-stage cavity and the second-stage cavity are respectively provided with a water bag filled with low-temperature distilled water and a guide plate for transmitting low temperature, and the low-temperature guide plate is used for providing comprehensive low-temperature contact for the electronic equipment nested in the housing, so that water-cooling heat dissipation is realized; the water bag and the guide plate are used for increasing the balance weight at the bottom end of thehousing, so that the low-temperature distilled water in the water bag can flow into a sleeve in a falling state, and a collision switch is triggered to be connected and opened; a controller is used for controlling a main miniature telescopic rod and an auxiliary miniature telescopic rod to be opened in sequence, and therefore support with damping and buffering effects is provided for the housingand the electronic equipment which freely fall off due to falling.

The invention discloses a desktop robot with a harmonic reducer. The desktop robot comprises a robot base, a balance weight positioning mechanism and a balance weight adjusting mechanism. The balanceweight postponing mechanism comprises a spring groove and a first balance weight. Springs fixedly connected are distributed in the spring groove. The spring groove is fixedly connected with a movableplate through the top ends of the springs. Due to design of the first balance weight, the balance weight can be conveniently increased for the robot, when the robot is used for a long time, a bottom plate is abraded, and the friction force is reduced, the friction force between the bottom plate of the robot and a desktop can be increased by increasing the first balance weight; due to the design offirst limiting clamping bars and first limiting clamping grooves, clamping fixing can be conducted on the first balance weight; and in addition, the position of the first balance weight can be changed by changing the different clamping positions between the first limiting clamping bars and the first limiting clamping grooves, and therefore the gravity center applied to the robot by the first balance weight is changed, and balance weight adjustment can be better conducted.

The invention discloses a novel textile yarn tube, which comprises a tube tube, an upper connecting tube and a lower connecting tube. The tube tube is provided with an upper connecting tube, the inner wall of the upper connecting tube is provided with internal threads, and the outer wall of the lower connecting tube is provided with External thread, the upper connecting pipe and the lower connecting pipe are connected by threads, and a row of uniform threaded blind holes are arranged on the outer wall of the upper connecting pipe. The upper end of the tube is provided with bolts to connect with the threaded blind holes of the upper connecting pipe. The end of the connecting pipe is connected with an upper baffle, the end of the lower connecting pipe is connected with a lower baffle, the inner wall of the aforementioned tube is provided with a rectangular groove, and the outer wall of the upper connecting pipe is provided with a groove matching the rectangular groove. Rectangular protrusions, the upper baffle and the lower baffle are connected with ring-shaped counterweights. The length of the bobbin is adjustable, which can meet the use requirements of different yarns on the length of the bobbin.

The invention provides a device for filtering metal components in sewage of a grinding workshop, and belongs to the technical field of sewage treatment. The problems that metal components in sewage are filtered in an existing grinding workshop in the mode that a filter screen is installed at a sewage draining exit, although a filtering effect is achieved, sewage draining can be affected after long-time use, and the filter screen needs to be frequently cleaned manually are solved. The device for filtering metal components in sewage of a grinding workshop comprises a shell, a working cavity is defined in the shell, a water inlet is formed in the upper end wall of the shell, a water outlet is formed in the lower end wall of the shell, and a water storage mechanism is arranged in the water outlet. The device for filtering metal components in sewage of a grinding workshop is more convenient to use, labor-saving and better in filtering efficiency.