44results about "Counterweights" patented technology

A cantilevered work platform and method with dynamic balancing counterweight are disclosed, belonging to the technical field of high-altitude work safety equipment. The platform includes a main boom, a telescopic boom, a personnel carrier frame, and a base. A dynamic center of gravity compensation device, consisting of a counterweight slide rail, a movable counterweight block, and a drive mechanism, is installed on the base. The counterweight block, linked to the pitch angle and telescopic stroke of the main boom via displacement sensors, moves in real-time along the slide rail in the opposite direction to counteract the variable overturning moment generated during operation. Simultaneously, a dual-rope self-locking fall arrest system, independent of the platform structure, is installed above the personnel carrier frame. This system includes two safety ropes anchored to high-level fixed points and corresponding speed difference controllers, directly connected to the worker's safety belt. This invention improves the overall anti-overturning stability of the machine by actively adjusting the counterweight position and ensures personnel safety even in the event of platform failure, significantly enhancing the reliability and safety of high-altitude operations.

There is provided an in-line multi-roll blind, which includes a weight bar, a first screen connected at its lower end to the weight bar and at its upper end to a first take-up roll, the first screen being wound onto or unwound from the first take-up roll as the first take-up roll rotates, a first take-up bar having the first take-up roll rotatably coupled thereto, a second screen connected at its lower end to the first take-up bar and at its upper end to a second take-up roll, the second screen being wound onto or unwound from the second take-up roll as the second take-up roll rotates, and a second take-up bar having the second take-up roll rotatably coupled thereto.

This utility model discloses an adjustable counterweight assembly for easy assembly in the field of forklift counterweight device technology. It includes a housing with a cover on top. Inside the housing are an adjustment assembly and multiple counterweight components. Each counterweight component has a through hole in its center for the adjustment assembly to pass through. The adjustment assembly includes a rod, a lifting ring fixed to the top of the rod, and a locking block on the outside of the rod. The bottom of each counterweight component has a corresponding locking groove along the circumference of the through hole, and the through hole and the locking groove are interconnected. This utility model allows adjustment of the counterweight components via the adjustment assembly. After the rod of the adjustment assembly passes through the through holes of multiple counterweight components in sequence, the locking block on the rod is screwed into the locking groove. The multiple counterweight components can then be disassembled, assembled, and lifted using the adjustment assembly, making weight adjustment of the forklift counterweight assembly more convenient.

This utility model belongs to the field of material conveying technology and discloses a lifting conveyor. The lifting conveyor includes a base, a lifting mechanism, a receiving mechanism, a translation mechanism, and a counterweight assembly. The lifting mechanism includes a driving member and a first lead screw. The first lead screw is rotatably mounted on the base in a vertical direction. The driving member is located at the end of the first lead screw to drive the first lead screw to rotate. The receiving mechanism includes a trough and a connecting member. The connecting member has a first threaded hole and is sleeved on the first lead screw through the first threaded hole to move vertically with the rotation of the first lead screw. The trough is fixed to the connecting member. The translation mechanism includes a second lead screw and a counterweight seat. The second lead screw is rotatably mounted on the base in a horizontal direction. The counterweight seat has a second threaded hole that cooperates with the second lead screw to move horizontally with the rotation of the second lead screw. The second lead screw cooperates with a gear pair at the end of the first lead screw. The counterweight assembly includes a counterweight that is detachably mounted on the counterweight seat.

The application discloses a hierarchical trigger GIL vertical corner two-way seismic response control system, which comprises displacement transmission modules symmetrically arranged on both sides of the vertical corner and a core energy dissipation module installed on the ground. The displacement transmission module is fixed to the horizontal sections on both sides of the GIL corner through a fixing member, one end of a cable is connected to the fixing member, the other end is connected to the core energy dissipation module through a support guide wheel and a ground guide wheel, and GIL horizontal displacement is transmitted to the core energy dissipation module. The core energy dissipation module is composed of a pre-tightening return device, a threshold trigger mechanism and a mass-inertial container in series. The application realizes two-way control of the GIL vertical corner in the counterclockwise and clockwise directions through symmetric cables and pre-tightening design, and the mass-inertial container is triggered in stages through the threshold trigger mechanism under normal operation and different intensity earthquakes. Under the synergistic action of damping, inertial element and adjustable stiffness unit, hierarchical vibration control is realized. The control system can be directly installed on the GIL pipeline and existing support without modifying the original structure, and is convenient to install and maintain.

The present application relates to the technical field of sensor fixing, in particular to a carbon emission intensity monitoring sensor fixing device, a plurality of groups of carbon emission intensity monitoring sensors are fixedly installed on the upper portion of the support main body through an adjusting mechanism, the support main body is fixed on the ground through a screw plug installation base, the support main body comprises a fixing support mechanism and an adjusting mechanism, the fixing support mechanism further comprises a depth strengthening module and a pouring strengthening module, the depth strengthening module can be inserted into the ground bottom, the fixing effect of the carbon emission intensity monitoring sensor on the ground is strengthened, the knocking pegs can be selectively knocked into different depths, the stability is increased, the clamping block is clamped into the first clamping groove in the inner side of the connecting plate, the stop block on the rotating ring is rotated, the stop block is staggered with the clamping block, thereby fixing the four groups of pegs in the notch at the bottom end of the connecting plate, the four groups of pegs are stably placed, and the pegs are prevented from being randomly separated during transportation.

This utility model discloses a vibration absorber for a subframe. Relating to the field of vehicle technology, the vibration absorber includes: a mass block with a first mounting hole extending through it along a first direction, which is the axial direction of the vibration absorber; a clearance opening formed on the outer peripheral wall of the mass block; a vibration-absorbing structure fixed to the mass block, with at least a portion of the structure located within the first mounting hole; and the structure for fasteners to pass through, allowing the vibration absorber to be fixed to the subframe by fasteners. By forming a clearance opening on the outer peripheral wall of the mass block, the gap between the mass block and surrounding components is increased, preventing interference and providing a larger installation allowance for the vibration absorber. This reduces the installation difficulty and improves installation efficiency. The vibration absorber, fixed to the subframe by fasteners, reduces vibration transmission to the subframe, helping to lower in-vehicle noise and vibration levels, reduce the risk of vehicle humming, and improve vehicle comfort.

The application belongs to the technical field of surveying and mapping devices, in particular to a field geological profile surveying and mapping support device, which comprises a mounting disc, a plurality of connecting rods are uniformly and fixedly installed at the bottom of the mounting disc, a base plate is fixedly installed between the plurality of connecting rods, the base plate is arranged in parallel with the mounting disc, a universal shaft is fixedly installed at the bottom of the base plate, a detection plate is fixedly installed at the bottom of the universal shaft, and a plurality of laser lamps are uniformly and fixedly installed on the inner wall of the detection plate. The application utilizes the mode that laser light emitted by the laser lamp passes through the through hole to determine the level, the laser light column is clear and has strong directivity, can be clearly visible in various light environments, is not affected by the above environmental factors, and the staff can intuitively and clearly observe the light condition, so as to quickly and accurately determine whether the device is in a horizontal state. When the light emitted by the laser lamp can pass through the through hole vertically, it can be concluded that the mounting disc is in a horizontal state.

This utility model relates to the field of forklift counterweight technology, providing a forklift counterweight that is easy to install and fix. It includes a mounting frame installed at the rear of the forklift by fixing bolts; a counterweight box for adding weight, secured to the mounting frame by a clamping plate; the counterweight box can be filled with metal sand to adjust its weight; an inlet and a outlet are respectively provided on the top and side walls of the counterweight box, the inlet providing a channel for adding metal sand and the outlet providing a channel for discharging metal sand; and a base plate fixed to the mounting frame for auxiliary support of the counterweight box. This solution provides a forklift counterweight that is easy to install and fix, and by using a counterweight box that can be filled with metal sand to adjust its weight, it allows for flexible adjustment of the counterweight according to actual needs, preventing the forklift from being overloaded due to excessive counterweight.

This utility model discloses a stacking scissor-type electric screw lifting platform, including a base and a platform. Symmetrical sliding grooves are formed on the upper left side of the base, with a screw rotatably connected inside the grooves. One end of the screw passes through the base and is fixedly connected to a bevel gear. A movable block is set on the outer surface of the screw. A scissor mechanism is set on the upper end of the base, and the platform is set on the upper side of the scissor mechanism. Symmetrical mating grooves are formed on the lower end of the platform, with guide rods installed inside the grooves. Guide blocks are fitted on the outer surface of the guide rods. The upper and lower right ends of the scissor mechanism are fixedly connected to the base and the platform, respectively. This utility model, through the flip-out extension mechanism at both ends of the platform, can flexibly expand the platform area, meet diverse operational needs, and is convenient to store, reducing space occupancy. The counterweight mechanism at the lower end of the platform can dynamically adjust the center of gravity according to actual conditions, preventing equipment swaying or tipping and ensuring operational safety.

This invention provides a multi-cavity, multi-directional bow shock absorber and a composite bow, relating to the field of composite bow technology. The multi-cavity, multi-directional bow shock absorber includes a mounting base and multiple elastic bodies. The mounting base is connected to the bow body and includes multiple lateral mounting holes evenly distributed along its circumference and an axial mounting hole facing away from the bow body. The elastic bodies are detachably fitted into the lateral mounting holes and also detachably fitted into the axial mounting holes.

The utility model discloses modularization water bag type circulating counterweight steady pipe device and dynamic regulation system relates to the technical field of temporary stabilization of pipeline, including the flexible water bag of several of being pressed on the pipeline, the shape of flexible water bag is hollow saddle shape, and the water pipe joint is connected to the upper side of flexible water bag, and the contact surface of the lower side of flexible water bag and pipeline is equipped with several antiskid convex, the utility model discloses through the flexible water bag of saddle shape and press on the pipeline, can adapt to the pipeline of multiple shapes and special shape, realizes the steady pipe effect, will not damage the surface of pipeline, can recycle, and water can be recycled, and there is no solid waste, zero material loss, and different water volume is filled in the flexible water bag, and it is convenient to adjust the counterweight weight, and the steady pipe construction efficiency is higher, especially applicable to soft base, high water level, temporary emergency and narrow operation space scene.

The application discloses a spring clamping groove type modular platform connecting piece, relates to the technical field of hydroelectric engineering equipment, and is applied to the quick and stable connection of a spider crane and an intelligent slag fetching platform, is suitable for adapting to complex working conditions of dam slag fetching operation, and comprises a spring clamping groove assembly, a variable speed gear steering assembly, an adjustable speed motor and a counterweight block. The spring clamping groove assembly is used for realizing the quick clamping and fixing of the spider crane and the connecting piece, the connecting piece is convenient to disassemble and assemble and has high connecting rigidity, the adjustable speed motor is used for driving the variable speed gear steering assembly to realize flexible steering adjustment of the slag fetching platform, the counterweight block is used for realizing the overall balance of the connecting piece, and the connecting piece is suitable for adapting to the multidirectional operation requirement of dam slag fetching; the overall structure is compact, has high waterproof and impact resistance, is suitable for the operation characteristics of an oil pressure power intelligent slag fetching machine, effectively solves the problems of complex operation, inflexible steering and poor connection stability during hoisting and connection of dam slag fetching equipment, and improves the efficiency and safety of the cooperation of the intelligent slag fetching platform and the spider crane.

The utility model relates to a kind of adjustable counterweight balance lifting appliance, belong to hoisting equipment technical field, to solve the problem that the building hoisting material with protruding structure in prior art, using vertical hoisting mode exists material cannot be transferred to target floor, and using skew way exists security risk problem.The present application includes hoisting frame and counterweight, and the side frame body of hoisting frame extends along horizontal direction outward, forms a cantilever beam;Counterweight is installed in the hoisting frame far from cantilever beam;To be hoisted object is installed in the cantilever beam of hoisting frame, when hoisting frame is hoisted by hoisting equipment, cantilever beam is hoisted under the gravity of counterweight, to hoist to-be-hoisted object in horizontal state.The present application installs to-be-hoisted object by the cantilever beam of hoisting frame, and the other side hoisting frame far from cantilever beam is installed with counterweight, so that when hoisting, hoisting frame drives to-be-hoisted object and counterweight are hoisted together, cantilever beam is in horizontal state, to-be-hoisted object is placed in target floor from side, and construction efficiency is high and construction safety is good.

The utility model relates to the technical field of fork truck, disclose a kind of electric fork truck counterweight, including the counterweight mainboard for installing lithium battery, two ends extend outward and form first, second arc-shaped mounting plate for installing pump motor assembly, hydraulic oil tank, three form the round-like gap for installing drive unit;First arc-shaped mounting plate and counterweight mainboard are diagonally provided with main mounting hole, respectively pass through corresponding main boss formed on first arc-shaped mounting plate and counterweight mainboard, by bolt sequentially penetrating main mounting hole and main boss, electric fork truck counterweight can be fixed to frame;First, second arc-shaped mounting plate is respectively provided with a lifting threaded hole, two lifting threaded holes are arranged at the centroid connecting line of electric fork truck counterweight and symmetrically distributed on the two sides of centroid;Counterweight mainboard and second arc-shaped mounting plate are also provided with a pair of auxiliary boss capable of cooperating with main boss to level. Its simple structure, the ability of carrying fork truck key components is strong, stability is high, improves the use safety of whole vehicle.

The application discloses a dynamic balance assembly of a compressor and the compressor, wherein the dynamic balance assembly of the compressor comprises a floating balance block, the floating balance block is sleeved on a shafting assembly of the compressor, the weight of a first counterweight block of the floating balance block is greater than the weight of a second counterweight block, and the floating balance block can rotate and float with the shafting assembly; a following dynamic balance block is arranged on a thrust support of the compressor; wherein the first counterweight block of the floating balance block can drive the following dynamic balance block to rotate synchronously, and the center of mass of the floating balance block deviates from the rotation center line of the shafting assembly when the floating balance block floats. According to the embodiment of the application, the floating balance block is sleeved on the shafting assembly of the compressor, the first counterweight block of the floating balance block drives the following dynamic balance block to rotate synchronously, and the center of mass of the floating balance block deviates from the rotation center line of the shafting assembly when the floating balance block floats, so that a new shafting balance is constructed to ensure the dynamic balance of the compressor, and the compressor can operate more stably.

This invention provides a winding device for controlling the elastic storage of a spring system in a lifting door installed in a wall structure. The door has at least one door panel capable of limiting vertical movement within a track. The door also has an elastic storage system with a helical spring including a fixed end and a winding end. The door system further has a central shaft held within the elastic storage system. The winding device has a ring gear including a flange, a worm gear meshing with the ring gear, and a housing, container, or retainer that holds the ring gear and worm gear in engagement, with the ring gear engaged with the central shaft by fasteners.

The utility model relates to the technical field of semiconductor chip processing discloses a rotary device for chip, including bottom plate, the top of bottom plate is provided with workstation, is provided with vacuum adsorption platform on the workstation, the inside of bottom plate is provided with motor, and the output of motor is connected with main shaft, and the main shaft is connected in the pivot of the bottom of upper vacuum adsorption platform through the shaft coupling, and motor drives vacuum adsorption platform rotation. The utility model through multiple structure cooperation promotes rotation stability, and the guiding support of rotating ring and fixed block reduces the shaking, and the counterweight sleeve and counterweight block balance the gravity center, and the damping ring absorbs the spindle vibration, and the interlayer foam aluminum and support foot weaken the overall vibration, and the multilink inhibits vibration and centrifugal deviation, improves rotation stability, and vacuum adsorption platform stable adsorption reduces the influence of shaking or vibration.

This invention belongs to the field of pipeline flaw detection technology, specifically a high-pressure gas pipeline flaw detection device. Addressing the problem of existing flaw detection trolleys easily tilting during forward movement, the following solution is proposed: a mounting base with a U-shaped groove on its upper surface, the mounting base being a horizontally placed prismatic structure. Symmetrical inclined surfaces are reserved on both sides of the mounting base, and symmetrical support legs are provided at both ends of the two inclined surfaces. Symmetrical and vertically placed centering adjustment frames are fixed at both ends of the U-shaped groove. During use, when the mounting base tilts during device advancement, the component force generated by the counterweight ball under gravity quickly returns the mounting base to a horizontal state, ensuring that the device always advances along the lowest part of the pipeline. This facilitates position and orientation calculation and positioning, thereby improving the accuracy of flaw detection location.

The utility model discloses a kind of lifting forks, it is related to logistics warehousing technical field, including rack, two sides The opposite surface both ends of the rack are fixedly installed with linear slide rail, and linear slide rail is slidably installed with lifting platform above, the notch both ends of the lifting platform are connected with traction rope, and the traction rope is connected with counterweight box away from lifting platform one end, and counterweight box is stacked with counterweight piece inside, the inner wall of the rack both sides is fixedly installed with guide shaft guide rail along height direction.The application provides a kind of lifting fork, the lifting fork of the application adopts ball screw lifting mode to replace the cylinder lifting and X type lifting mode used in traditional technology, because not by gas source pressure and mechanical structure limit, with repeat positioning precision high, the characteristics of high-speed high-frequency operation, more adapt to automation production line demand, in addition, the setting of two-way horizontal fork makes the lifting fork of the application meet vertical lifting function while also have horizontal telescopic function, more suitable.

This utility model relates to the field of water conservancy construction technology, specifically a hoist for water conservancy construction, including a transport platform. A hydraulic cylinder is rotatably mounted on the center of the top surface of the transport platform, and a support frame is rotatably mounted on one end of the transport platform. The advantages of this utility model are: by setting up a transport platform and a support frame, the support frame is driven by the hydraulic cylinder to rotate relative to the transport platform, thus facilitating the control of one end of the support frame to rotate into the interior of the foundation pit. By setting two first guide rails and a second guide rail, it is convenient to push the moving platform and water pump along the length of the first guide rail. When the support frame is in a horizontal state, the moving platform is positioned at the end of the support frame away from the transport platform. Therefore, after the support frame rotates into the foundation pit, the water pump enters the water, thus avoiding manual entry into the foundation pit and preventing potential dangers. The overall structure is simple and effectively solves the problems existing in the prior art.

This invention relates to a device for replacing the balance weight of a belt-driven oil pumping unit. The device comprises an upper gripper, a lower gripper, and a clamping lever. The lower gripper is fixed to the front side of a fixed plate. The upper and lower grippers are connected to a connecting plate via pins one and two, and a roller is mounted behind pin one, which is installed on the rear side of the upper gripper. The rear end of the connecting cylinder is a push-pull stroke cylinder, which is fixed to a push rod base and a positioning plate. The push rod is installed in the connecting cylinder and the push-pull stroke cylinder, with a front push block fixed to its front end and a rear push block fixed to its rear end. Rear spring fixing bolts on both sides of the push-pull stroke cylinder are connected to the rear of the push rod. The front push block rests against the rear of the roller. A force-applying rod is mounted on the upper end of the clamping lever, and its lower end rests against the rear of the rear push block. The front end of the handle is fixed to the rear side of the positioning plate, and the force-applying rod is engaged in the positioning plate. This invention effectively solves the problems existing in the balance adjustment of belt-driven oil pumping units and improves work efficiency.

The utility model relates to surveying and mapping engineering equipment technical field discloses a surveying and mapping engineering is with level, including shell, the inner side wall of shell is connected with the rotating ring through bearing and first pivot rotation, the inner side wall of rotating ring is connected with the connecting disc through bearing and second pivot rotation, the upper surface of connecting disc is rotatably connected with laser level body through annular sliding slot, the lower surface of connecting disc is fixedly connected with the spherical cap counterweight through connecting column, the middle part of lifting plate is fixedly connected with the jacks, the upper surface of jacks is fixedly connected with rubber top block, the outer surface of third pivot is fixedly connected with eccentric wheel, the upper surface of eccentric wheel is fixedly connected with handle, the device realizes gravity automatic calibration through double shaft rotation and spherical cap counterweight, avoids sensor cost problem, utilizes the rubber top block locking mechanism of eccentric wheel drive, fixes the measurement angle through mechanical clamping, solves the calibration dependence and stability problem, has low cost and high practicality.

This utility model discloses a novel structure for a counterweight plate of a roller shutter door, including a counterweight plate body. A protective component is installed at the bottom of the counterweight plate body. The protective component includes two slots inside the counterweight plate body, both of which are located at the bottom of the counterweight plate body. A rod is slidably inserted into the slot, and an air bladder is provided at the bottom of the rod. An arc-shaped groove adapted to the air bladder is provided on the outer wall of the bottom of the counterweight plate body. A through hole is provided on the outer wall of one end of the mounting ring, and a mounting ring is fixedly connected inside the through hole. An air injection head is threaded inside the mounting ring, and a one-way valve is provided inside the air injection head. This utility model, by setting up a protective component, effectively avoids injury to people or objects caused by impact from a single piece of the counterweight plate body, and also avoids damage to vehicles or goods when scratched by a single piece of the counterweight plate body. It can also adapt to uneven ground.

There is provided improved balancing of a rotor shaft assembly (124) for a machine tool (100). The rotor shaft assembly (124) comprises an elongated body for forming a rotor axis (112), and a guiding portion for balancing the machine tool (100), arranged at an end of the elongated body. The guiding portion comprises a connector for a tool (110) or tool shaft (104) and an orbit path (117) that is concentric with a longitudinal direction of the elongated body and eccentric with respect to the connector for a tool (110) or tool shaft (104); wherein the guiding portion comprises two or more balancing bodies (126) arranged movable at the orbit path (117) in a plane that is parallel to a radial direction of the rotor shaft assembly (124).

This application relates to the field of vibration reduction technology, and particularly to an asymmetric inertial control local resonant device and resonant system. The external rod system includes an outer frame formed by four outer frame flexible rods creating a parallelogram, with its upper and lower ends fixedly connected to an upper end plate and a lower end plate, respectively. The internal rod system includes an inner frame formed by four inner frame flexible rods creating a parallelogram, located inside the outer frame. The outer sides of the four endpoints of the inner frame are opposite to the inner sides of the four endpoints of the outer frame, forming four sets of nodes. The two ends of three flexible connecting rods are connected to any three corresponding sets of nodes of the inner and outer frames. A mass block is placed on the outer side of the free end of the inner frame. The surfaces of the outer frame flexible rods, flexible connecting rods, and inner frame flexible rods are covered with rigid plates. The upper end plate and the lower end plate are connected by a first spring. This application features a simple structure and high reliability, and can achieve a wide low-frequency vibration suppression effect that surpasses traditional symmetrical models.