264 results about "Pendulum" patented technology

The proposed invention relates to the furniture industry and can be used for controlling rocking devices, such as beds and chairs with pendulum mechanisms. An external control device for a device for actuating a pendulum mechanism is proposed. The technical result achieved by the claimed invention, in addition to the fulfillment of its intended purpose, is that of overcoming the disadvantages of the prior art and, in so doing, providing universality by permitting installation on both side-to-side and back and forth pendulum mechanisms, as well as providing for ease of use with both side-to-side and back and forth pendulum mechanisms, and also providing for ease of installation and allowing more precise control of a pendulum mechanism.

The proposed invention relates to the furniture industry and can be used for controlling rocking devices, such as beds and chairs with pendulum mechanisms. A pendulum mechanism is proposed. The technical result achieved by the claimed invention, in addition to the fulfillment of its intended purpose, is that of overcoming the disadvantages of the prior art and, in so doing, providing universality by permitting installation on both side-to-side and back and forth pendulum mechanisms, as well as providing for ease of use with both side-to-side and back and forth pendulum mechanisms, and also providing for ease of installation and allowing more precise control of a pendulum mechanism.

The invention relates to a marking and / or leveling device (1) comprising a light source (4) disposed on a pendulum (3) that can pivot relative to a housing (2). According to the invention, means are provided for accelerating (9) the pendulum (3) and / or a pendulum bearing (8) in a pulsing manner.

The invention relates to the technical field of automatic warehouse logistics, in particular to a stacking machine platform automatic leveling and winding drum rope winding prevention device which comprises a horizontal moving platform, a vertical frame installed on the surface of the horizontal moving platform, a lifting frame installed on the vertical frame in a sliding mode, an objective table arranged on the lifting frame, a winding drum and a steel wire rope. One end of the steel wire rope is connected with the lifting frame, and the other end is wound on a winding drum driven by a motor. According to the gravity sensing mechanism, the inclination angle of the cargo platform is converted into mechanical displacement through a pendulum bob and a sliding block structure; the gravity center adjusting mechanism transmits pressure through a hydraulic medium to drive a balancing weight to move so as to adjust the gravity center, and the cargo table recovers to be horizontal. And the cable guide mechanism is linked along with the balancing weight through the movable guide wheel group to dynamically compensate the path length difference of the steel wire ropes on the two sides, so that the cooperative control of leveling and winding prevention is synchronously realized, and the stability, safety and reliability of equipment operation are remarkably improved.

The utility model discloses a torsional pendulum type rotational inertia experimental instrument for determining a mass center shaft through multi-point weighing, which comprises a rotating shaft bracket, a central rotating shaft is rotationally arranged on the rotating shaft bracket, a volute spiral spring is arranged on the central rotating shaft, the inner end of the volute spiral spring is fixed on the central rotating shaft, and the outer end of the volute spiral spring is fixed on the rotating shaft bracket. A dial coaxial with the central rotating shaft is fixed on the rotating shaft support, a pointer extending outwards in the radial direction is arranged on the central rotating shaft, and the pointer is used in cooperation with the dial. A first tray is fixed at the top of the central rotating shaft, a plurality of pressure sensors are uniformly distributed at the top of the first tray along the circumferential direction, a second tray for placing an object to be measured is fixed at the tops of the plurality of pressure sensors, and the first tray and the second tray are coaxially arranged with the central rotating shaft. Compared with the prior art, the mass distribution of the object to be measured is measured by adopting the plurality of pressure sensors, and the position of the mass center shaft of the object to be measured can be accurately determined, so that the accurate measurement of the rotational inertia of the object in a complex shape is realized.

The utility model discloses a pendulum ball speed reducer which comprises a fixing base, a first shell is vertically arranged at the top end of the fixing base, a second shell is vertically arranged at the top end of the first shell, a second speed reduction disc is arranged in the first shell in a rotating mode, and an eccentric shaft sleeve is vertically inserted into the top end of the second speed reduction disc. An eccentric shaft assembly is vertically inserted into the top end of the eccentric shaft sleeve, an output shaft is vertically inserted into the top end of the eccentric shaft assembly, a first cross-shaped swing disc is arranged between the second speed reduction disc and the eccentric shaft sleeve, and a plurality of first cross-shaped deflection balls are arranged in parallel gaps between the second speed reduction disc and the first cross-shaped swing disc. A first speed reduction disc is arranged between the eccentric shaft sleeve and the eccentric shaft assembly, the first speed reduction disc is formed on the side edge of the top end of the eccentric shaft sleeve in a surrounding mode, and a second cross-shaped swing disc is further arranged between the eccentric shaft sleeve and the eccentric shaft assembly. And a plurality of second cross-shaped deflection balls are arranged in parallel gaps between the second cross-shaped swing disc and the first speed reduction disc.

The utility model provides a pendulum bob impact device, and belongs to the technical field of pendulum bob impact tests. A pendulum bob impact device comprises a pendulum bob, bases and an abutting piece, a rotating shaft is connected to the pendulum bob, and the bases are arranged on the two sides of the pendulum bob and symmetrically arranged. A containing space capable of containing a tool is formed in the middle of the pendulum bob, and an impact cutting edge is connected into the containing space. The base is connected with an abutting piece, the abutting piece is in an L shape, a first through hole is formed in one side of the abutting piece, and the abutting piece is connected to the base through threads. A protrusion is connected to the side, close to the pendulum bob, of each abutting piece, and a tool can be placed between the two abutting pieces. The utility model has the advantage of high precision.

This invention relates to the field of automated warehousing and logistics technology, specifically to an automatic leveling and anti-tangling device for a stacker crane platform. The device includes a horizontal moving platform, a vertical frame mounted on the surface of the platform, a lifting frame slidably mounted on the vertical frame, a loading platform on the lifting frame, a drum, and a wire rope. One end of the wire rope is connected to the lifting frame, and the other end is wound around a motor-driven drum. In this invention, a gravity sensing mechanism converts the platform's tilt angle into mechanical displacement using a pendulum and slider structure; a center-of-gravity adjustment mechanism uses hydraulic medium to transmit pressure, driving a counterweight to move and adjust the center of gravity, restoring the platform to a horizontal position; and a cable guiding mechanism, through a movable guide wheel assembly linked with the counterweight, dynamically compensates for the difference in path length between the wire ropes on both sides, thereby simultaneously achieving coordinated control of leveling and anti-tangling, significantly improving the stability, safety, and reliability of the equipment operation.

The utility model relates to the field of test equipment, and discloses an impact testing machine, which comprises a frame body, a data reading assembly, a pendulum bob assembly, a limiting assembly and an alignment piece, a limiting groove is arranged in the limiting assembly along a first direction, a limiting step is formed in the limiting assembly along a second direction, and a test piece is arranged on the limiting step along the second direction. One side of the test piece abuts against the limiting step, and the test piece stretches across the limiting groove; the alignment piece is movably connected with the limiting assembly to form an alignment state and an impact state of the alignment piece; in the alignment state, the limiting assembly is located outside the limiting groove, the alignment piece is arranged above the limiting assembly in the second direction, the alignment piece stretches across the limiting groove, and the alignment piece is used for calibrating the position of the test piece; in the impact state, the alignment piece is arranged on one side of the limiting groove, and it is avoided that swinging of the pendulum bob assembly in the limiting groove is affected. According to the impact testing machine, the alignment piece is movably connected with the limiting assembly, and the alignment piece does not affect an impact test.

The application discloses a mechanical drill bit rotary steering vertical drilling tool and relates to the technical field of geological drilling. The mechanical drill bit rotary steering vertical drilling tool comprises an upper joint, an outer cylinder, a steering drill bit body, a flow distribution component and a pendulum control system. The pendulum control system comprises a pendulum mounting component, a pendulum ball hinge, a pendulum middle cylinder and a pendulum end head. The pendulum ball hinge, the pendulum middle cylinder and the pendulum end head can rotate relative to the pendulum mounting component. A plurality of drill bit nozzles are uniformly and sequentially arranged on the steering drill bit body in a circumferential direction. Each drill bit nozzle penetrates through upper and lower ends of the steering drill bit body. A plurality of edge flow distribution holes, which penetrate through upper and lower ends of the flow distribution component, are uniformly and sequentially arranged on an outer edge of the flow distribution component in a circumferential direction. A plurality of central inclined holes, which penetrate through upper and lower ends of the flow distribution component, are uniformly and sequentially arranged on an upper end of a middle part of the flow distribution component in a circumferential direction. A central flow passage, which penetrates through upper and lower ends of the pendulum end head, is arranged on a middle part of the pendulum end head. The mechanical drill bit rotary steering vertical drilling tool is not prone to failure in a complex and changeable downhole environment, has high reliability and low cost.

The application discloses a 360-degree pendulum swing control system, which is applied to amusement equipment including a swing arm, a support frame, a cabin and a counterweight arm and specifically comprises an execution motor, a driver, an encoder and a controller, wherein the execution motor is connected with the swing arm in linkage to control swing size and direction of the swing arm; the driver is in communication connection with the execution motor; the encoder is installed on the swing arm; the controller is in communication connection with the encoder and the driver, is used for collecting feedback signals of the encoder, calculating speed and angle of the swing arm in combination with preset parameters in the controller and adjusting driving force size, direction, ramp time and starting and ending time of the driving force output by the driver according to the calculation result; and the man-machine interface is in man-machine interaction with external staff and is also in communication connection with the controller and is used for changing the preset parameters in the controller. The 360-degree pendulum swing control system avoids the problem that only the driver can control the torque output size of the execution motor and the problem that the switching and acceleration and deceleration are not smooth enough.

The present application relates to a kind of three-dimensional pendulum tuning liquid inductance device, the inductance device includes tuning liquid column damper and tuning mass inductance container, tuning liquid column damper includes swing arm, ball hinge end head, swing arm connector, annular water tank and tuning liquid, swing arm one end is connected with ball hinge end head, the other end is connected with annular water tank by swing arm connector, tuning liquid is filled in annular water tank;Tuning mass inductance container is installed in the lower portion of tuning liquid column damper, ball hinge end head is connected with the structure to be damped, annular water tank swings and drives tuning mass inductance container to carry out energy consumption, the inductance device tuning period is adjustable.Compared with prior art, the present application has can control the vibration in each direction of the structure to be controlled, wide range of use;The parameters of each component can be flexibly adjusted to achieve the best damping effect, while tuning mass inductance container can realize the energy absorption of input structure with smaller space and achieve the two goals of energy dissipation and reduction of upper tuning liquid mass.

This invention discloses a long-distance corridor belt conveyor with anti-deviation feature, comprising multiple corridor supports, each corridor support having a base plate on its bottom outer wall, a lower idler frame on the corridor support, and an upper idler frame above the base plate. It also includes a reference sensing component: fixedly installed on the top outer wall of the base plate. The reference sensing component includes a base, and the top inner wall of the base has a universal suspension bearing. A gravity pendulum is connected to the base through the universal suspension bearing. This invention utilizes the gravity pendulum as an absolute reference to automatically sense minute settlement of the corridor supports, thereby converting it into real-time automatic height compensation for the upper idler frame. This significantly reduces the frequency of manual inspection and adjustment, while eliminating problems such as belt deviation, edge tearing, increased energy consumption, and material spillage caused by corridor support settlement.

The invention discloses a single-pendulum double-servo drive 3 + 2 electric spindle swing head which comprises an upper box body, a lower box body, a spindle box, an electric spindle, a C-axis assembly and an A-axis assembly, the C-axis assembly comprises a C-axis positioning assembly and a C-axis driving assembly, and the A-axis assembly comprises an A-axis positioning assembly and an A-axis driving assembly; the spigot of the upper box body is connected to the bottom end of the ram, the electric spindle is arranged in the spindle box, and the spindle box is of a simple pendulum offset structure; the C-axis positioning assembly comprises an upper crankset, a lower crankset, a C-axis bearing seat and a C-axis counter-pulling mechanism; the C-axis driving assembly comprises a C-axis servo motor and a C-axis speed reducer; the A-axis positioning assembly comprises an A-axis bearing seat, a triple fluted disc assembly and an A-axis oil cylinder; the A-axis driving assembly comprises an A-axis servo motor and an A-axis speed reducer. The swing head integrates a high-power high-speed motorized spindle, a crankset positioning rigidity improving function, a servo driving transposition function and a safe self-locking function, and is low in cost, easy to control, large in A / C shaft driving torque, small in overall size and suitable for 3 + 2 indexing machining.

The application discloses a pipeline welding execution method and a testing machine in a mountainous environment and relates to the technical field of pipeline welding. The pipeline welding execution method in the mountainous environment comprises a testing machine, the testing machine is provided with a pendulum, the pendulum is provided with a force sensor, and the pipeline welding execution method further comprises the following methods: test piece preparation, testing machine preparation, starting test and selecting a welding mode. The testing machine comprises a test main body, the test main body is provided with a protractor, a test table and a protection frame, the pendulum is provided with the force sensor for recording an impact dynamic process, the pendulum is connected with the test main body, the test table is placed with a pipeline test piece aligned with the pendulum, the pendulum comprises a swing arm and a U-shaped hammer head connected with each other, the U-shaped hammer head is provided with a pair of detachable counterweights on the front face and the back face, and the U-shaped hammer head is provided with a striker for impacting the test main body in a groove. The pipeline welding execution method and the testing machine in the mountainous environment have the beneficial effects that a correct welding mode is adopted, and the service life of the pipeline is longer.

The utility model relates to the technical field of ornaments, especially a stable and firm swing piece with built-in counterweight and anti-toppling function, comprising a swing body and a swing head, the top of the swing body is provided with a positioning assembly for positioning the swing head, the bottom of the swing head is provided with a connecting assembly for connecting with the swing body, the bottom of the swing body and the inside of the swing body are provided with a detachable counterweight, the detachable counterweight comprises a counterweight block arranged inside the swing body, a clamping groove is symmetrically arranged on the two sides of the counterweight block, adjusting cavities are arranged on the two sides of the swing body, the two adjusting cavities are symmetrically arranged on the two sides of the counterweight block, shafts are arranged through the bottom of the two adjusting cavities, rotating discs are fixedly connected to the top of the two shafts, and driving rods are evenly arranged on the side of the two rotating discs away from the shafts, so that the weight of the lower half of the swing piece is increased, the stability is improved, and the swing piece is prevented from toppling.

The invention relates to the technical field of feed trays, and discloses a novel feed tray detection device, which comprises an adjustable bracket used for mounting and supporting the detection device and avoiding a vibration source; the connecting support and the adjustable support are installed in a hinged mode, the connecting support is used for adjusting the detection angle of the detection device, a mounting plate is installed on one side of the connecting support, and the relative height of the mounting plate and the connecting support is adjustable; the pendulum component is arranged on the side surface of the mounting plate and is rotationally connected with the mounting plate; according to the invention, the problems of unstable material quantity and high alarm rate caused by similar colors and different heights of products in traditional optical fiber detection are comprehensively solved through a plurality of adjusting structures (the adjusting pipe has multiple gears, and the angle and height of the connecting bracket are adjustable) and different state designs (vertical / inclined / universal ball structures) of the pendulum component, and the production efficiency is effectively improved.

The proposed invention relates to the furniture industry and can be used to control rocking devices, such as beds and chairs with pendulum mechanisms. The technical result achieved when implementing the claimed invention, in addition to the invention realizing its purpose, is the elimination of the disadvantages of analogs and thus ensuring universality, that is, the possibility of installation on both transverse pendulum mechanisms and longitudinal pendulum mechanisms, as well as the possibility of simple operation with both transverse pendulum mechanisms and longitudinal pendulum mechanisms, as well as ensuring ease of installation and operation, as well as increasing the accuracy of pendulum mechanism control.

The invention relates to the technical field of damping of hoisting machinery structures, in particular to a self-adaptive damping system of a tower crane driven by tension of a hoisting steel wire rope, which comprises a swing base mounted on a balance arm, an arc track assembly is arranged on the swing base, and a movable mass block assembly is arranged in the arc track assembly. A tension actuating mechanism is connected between the lifting steel wire rope and the swing base, and a damping mechanism is hinged between the balance arm and the mass block assembly. The posture switching of the swing base is automatically driven by the tension of the lifting steel wire rope, an additional power source is not needed, and the response is quick; the arc track assembly replaces a traditional long simple pendulum with an arc structure, and the problem that the vertical installation space of the tower crane is limited is solved. The mass block assembly has the balance arm counterweight effect and the static balance and dynamic vibration reduction functions, and the structural load and cost are reduced; the damping mechanism efficiently dissipates vibration energy, self-adaptive vibration reduction is cooperatively achieved, and the dangerous bending moment and amplitude of the tower body are effectively reduced.

The invention belongs to the technical field of pendulum bob tests, and particularly relates to a pendulum bob type lateral impact test device capable of adjusting the impact direction in multiple degrees of freedom, which comprises a base, a mechanical arm mounted on the base, a small arm fixedly mounted at the movable end of the mechanical arm, and a U-shaped frame fixedly arranged at the other end of the small arm, a U-shaped frame is arranged on the upper portion of the arc-shaped track, a chain wheel is rotationally installed in the U-shaped frame, a chain is connected to the chain wheel in a meshed mode, the lower end of the chain is fixedly connected with a pendulum bob, the other end of the chain is wound on a roller of a first winch, and the first winch is fixedly installed on the small arm. The azimuth angle and the pitch angle of the pendulum bob can be quickly and accurately adjusted, so that the pendulum bob can realize repeatable impact loading under different incident angles, different transverse offsets and different spatial orientations, and the target energy level hit rate and the test repeatability are remarkably improved.

The utility model discloses a kind of tool of inclination test swing distance measurement, wherein, tool of inclination test swing distance measurement includes pendulum and guide pipe, pendulum and guide pipe are connected by first cycloid, level pointer is provided on guide pipe, the pointing direction of level pointer is perpendicular to the central axis of guide pipe;Tool further includes test box body, test box body is provided with test liquid, upper cover is provided with guide port, the edge of guide port is provided with scale, pendulum can enter test box body inside via guide port, until being completely immersed by test liquid, at this time, level pointer and scale overlap intersection, when test box body is inclined, level pointer and scale can read out swing distance.The tool of inclination test swing distance measurement can accurately read swing distance, solve the problem of inaccurate measurement according to cycloid offset distance directly in traditional method, when testing, pendulum is completely immersed by test liquid, and damping effect makes measurement more stable.

The invention relates to the technical field of physical test devices, and particularly discloses an AI digital-intelligent two-dimensional steady-state excitation Newton pendulum device, which comprises a steady-state parameter calculation module used for calculating control parameters of a motor according to the length of a light rope and the radius and material of a small ball; the steady-state parameter calculation module is connected with the motor, the motor is connected with the sliding rail device through the connector, the sliding rail device is arranged on the guide rail device, a guide rail of the guide rail device is vertically arranged, and the two small balls are connected with fixing points of the sliding rail device through the light ropes respectively. The motor drives the sliding rail device to longitudinally reciprocate along the guide rail through the connector according to the control parameters. According to the steady-state determination method based on combination of theoretical modeling and AI simulation algorithm optimization, scarce steady-state parameters can be accurately and rapidly obtained for a complex two-dimensional excitation system, and the two-dimensional excitation steady-state Newton pendulum is obtained by designing a two-dimensional excitation driving device and a digital intelligent measurement mode.

This application provides a rotor blade folding mechanism and a helicopter. The rotor blade folding mechanism includes a rotor clamp and a rotor blade. The rotor blade is rotatably connected to the rotor clamp and can move relative to the rotor clamp between a folded position and an unfolded position. It also includes a limiting component configured to restrict the rotation of the rotor blade relative to the rotor clamp in the unfolded position. The limiting component includes a limiting pin, a pendulum, a limiting groove, and an elastic element. The limiting pin is inserted and rotatably passed through the rotor clamp and the rotor blade. The pendulum is eccentrically connected to one end of the limiting pin. The bottom of the pendulum forms a groove structure. The limiting groove is formed on the rotor clamp on the same side as the pendulum. The limiting groove is a U-shaped groove with its opening opposite to the pendulum. The elastic element protrudes from the rotor clamp located between the limiting pin and the limiting groove. When the rotor blade is in the unfolded position relative to the rotor clamp, the limiting pin passes through the rotor clamp and the rotor blade. The end of the pendulum away from the limiting pin is engaged with the limiting groove, and the elastic element abuts against the groove structure of the pendulum.

The utility model discloses a pendulum bob impact test device, which comprises a rack base, a protective cover is arranged on the top surface of the rack base, a supporting vertical plate is arranged on the protective cover, a supporting beam is arranged on the supporting vertical plate, a rotating shaft is rotatably connected in the supporting beam, a pendulum bob assembly is arranged on the rotating shaft, and the pendulum bob assembly is arranged on the rack base. The pendulum bob assembly comprises a pendulum bob rod, a clamping piece is arranged on the pendulum bob rod, an electromagnetic pin is arranged on the supporting vertical plate or the protective cover and comprises an electromagnetic shaft and a pin buckle, the pin buckle is arranged at one end of the electromagnetic shaft, and the pin buckle is used in cooperation with the clamping piece. According to the utility model, the clamping piece and the electromagnetic pin which are matched for use are added, and the pendulum bob assembly is fixed through the matching of the clamping piece and the pin buckle of the electromagnetic pin; when the pendulum bob assembly needs to be released, an operator can control the opening of the electromagnetic pin through the operation table far away from the swinging path of the pendulum bob, so that the pendulum bob assembly falls, and compared with a traditional pendulum bob impact test device, the pendulum bob impact test device is safer.

This invention discloses a control method and system for stage equipment, comprising: establishing a global spatial coordinate system with the starting point of the slide rail as the origin and calibrating the static coordinates and geometric center coordinates; real-time acquisition of pressure distribution data and motion feature sets; performing Fourier transform on the pressure distribution data to generate a smooth pendulum length and obtaining the audience's center of gravity offset and offset direction; generating a safety zone based on the motion speed and smooth pendulum length, and generating a vertex coordinate sequence based on the center of gravity offset and offset direction; publishing the vertex coordinate sequence to each peripheral device based on a publish-subscribe mechanism, and obtaining the verification distance between each peripheral device and the boundary of the safety zone; comparing the verification distance with preset warning thresholds and emergency thresholds to generate control commands; and performing differentiated control on the mobile platform based on the control commands. This invention achieves unified safety interlocking between the mobile platform and peripheral devices, solving safety problems caused by the high center of gravity of standing audiences, edge gathering, and individual inertia differences.

This invention discloses an adaptive reconstructive post-processing method for overtravel of rotary axes in a dual-swivel-head five-axis machine tool, belonging to the field of CNC machining technology. The method first establishes a rotary axis state observer based on historical cache to monitor the state increment of the rotary axis in real time. By constructing a dewinding and abrupt change feature discrimination model, it determines the graded adaptive tool retraction distance. When a risk of overtravel or abrupt change in posture is detected, it triggers an axis-wise tool retraction based on tool axis isovector constraints, ensuring the tool retracts along the cutting vector line to avoid interference. Subsequently, after physical rewinding, the kinematic solution boundary conditions of the post-processor are corrected through a virtual state injection mechanism. Historical states are used as initial solution constraints for secondary solving, forcibly maintaining consistent head polarity. This invention maximizes continuous machining travel capability through seamless path reconstruction, eliminates tool marks caused by posture flipping, and significantly improves the surface consistency and efficiency of precision layered machining.

Device for generating energy under a waterfall, consisting of a rotatably mounted pendulum sphere which is set into rotation by the impacting mass of water and which has propellers or blades on its surface which amplify the torque generated by the waterfall, wherein the rotational movement of the pendulum sphere drives a generator arranged inside the sphere via a central axis or an internal transmission system to generate electrical energy.

The invention discloses a safety system for low-altitude wing-mounted flight and an operation method, the safety system comprises a first steel cable, a swinging rope, a whole-body safety belt and a diving platform, the diving platform is used for being installed on a first supporting structure, the diving platform is used for allowing a user to stand and take off, and the first steel cable extends in the horizontal direction; the two ends of the first steel cable are used for being connected to first steel rings on the two opposite sides of the second supporting structure respectively, the first end of the swinging rope is detachably connected to a first connecting point on the first steel cable, and a whole-body safety belt is arranged at the second end of the swinging rope and can be worn on the trunk part of a user located on the diving platform. Therefore, after a user jumps out of the diving platform, the swinging rope can be driven to do pendulum swinging motion in a vertical plane around the first connecting point. According to the safety system, the pendulum principle is utilized, traditional high-altitude protection equipment is combined, a wing-mounted flight experience mode which is stimulated and relatively safe is provided, and therefore the high threshold needed by traditional wing-mounted flight is lowered, and the technical requirements of traditional wing-mounted flight are lowered.

The invention relates to a pendulum device (1) comprising a pendulum (2) with a horizontal pendulum axis (24) and with a horizontal axis (31) of a shelf (3) arranged in the upper end region of the pendulum (2), the weight of which is balanced by a counterweight (42) arranged in the lower end region of the pendulum. The pendulum device (1) can be connected to the furniture (5) via a receiving device (11) with a coupling device (12) that can be connected to the furniture (5). The pendulum (2) comprises a first pendulum rod (21) extending from the horizontal pendulum axis (24) to the upper end region, which is connected to the pendulum axis (24) by means of a first fastening device (13) and to the horizontal axis (31) of the shelf (3) by means of an upper fastening device (14). In order to achieve a particularly stable and torsionally rigid support, it is proposed that the pendulum (2) has a second pendulum rod (22) extending from the horizontal pendulum axis (24) to the upper end region, which together with the first pendulum rod (21) supports the horizontal axis (31) against the pendulum axis (24).

The invention discloses a pendulum type tuned mass damping device based on a guide cable, a pulley block and an inerter, and belongs to the technical field of vibration control, the pendulum type tuned mass damping device comprises an upper fixing platform, a tower drum and a lower fixing platform, a mass pendulum is connected below the upper fixing platform, a pulley fixing platform is arranged at the lower end of the mass pendulum, and an upper pulley is arranged at the lower end of the pulley fixing platform; a lower pulley is arranged on the lower fixed platform, a guide cable is arranged between the upper pulley and the lower pulley, and the guide cable is connected with an inerter damper. According to the pendulum type tuned mass damping device based on the guide cable, the pulley block and the inerter, the pulley block is arranged on the mass pendulum, and the displacement of the mass pendulum is amplified and transmitted to the inerter damper connected with the guide cable through the pulley block and the guide cable on the pulley block; the lightweight design of the tuned mass damping device in a narrow space is realized through the mass amplification effect of the inerter damper, and the suppression of the vibration of the tower drum is realized through the inertia force of the mass pendulum and the damping force of the damping element.