43results about How to "Act as limit protection" patented technology

The invention discloses a mold mechanism driven by an up-down movement arm, which solves the technical problems of slow speed of mold opening and closing, large transverse occupied space, poor precision of mold opening and closing, small mold locking force and poor synchronism of a bottom formwork existing in the prior mold mechanism. The mold mechanism comprises a framework, a left formwork, an intermediate formwork, the bottom formwork, a connecting rod and a right formwork, wherein the left formwork and the right formwork are fixed at both ends of the connecting rod; the intermediate formwork is positioned between the left formwork and the right formwork and is arranged on the connecting rod in a sliding way; the bottom formwork is positioned below the left formwork and the intermediate formwork; a crank arm mechanism is arranged between the intermediate formwork and the right formwork; the middle part of the crank arm mechanism is connected to a lifting plate; both ends of the crank arm mechanism are connected to the intermediate formwork and the right formwork respectively; and the lifting plate is connected to a driving arm which moves up and down. The mold mechanism saves space occupation, optimizes a product structure, saves a synchronous transmission mechanism of a gear and a rack, reduces the quality problem caused by a mold-closing impact force, improves the speed and the accuracy of mold opening and closing, and has coordinative and steady operation.

The invention discloses an active and passive integrated four-feet converged type vibration isolator which comprises an upper connection plate (1), inclined micro-vibration control units (2), a thirdslotted disk spring (4), a lower connection plate (5) and a slotted cylindrical spring (6); one end of the slotted cylindrical spring (6) is connected with the third slotted disk spring (4); the otherend of the slotted cylindrical spring (6) is fixed to the middle part of the lower connection plate (5); the third slotted disk spring (4) is fixed to the middle part of the upper connection plate (1); the inclined micro-vibration control units (2) are uniformly distributed around a center shaft of the slotted cylindrical spring (6) in the circumferential direction of the upper connection plate (1), and are obliquely mounted; one ends of the inclined micro-vibration control units (2) are connected with the upper connection plate (1); and the other ends of the inclined micro-vibration controlunits (2) are connected with the lower connection plate (5). With the adoption of an active and passive integrated structure, wide frequency band micro-vibration control can be realized, the vibrationisolation efficiency of the vibration isolator and the adaptability of the vibration isolator to a complex environment and a changing object are improved.

The invention discloses a crawling training device for infants and relates to a training device for infants. The device comprises a crawling channel, a supporting base, a channel gradient adjustment mechanism, a channel plane rotation mechanism, anti-rollover mechanisms and a music learning control system. The crawling channel is a cross crawling channel, obstacle cloth bags are arranged in the channel, and a direction training operation button is arranged at the inner side of an end point of one end of the channel; the supporting base comprises a supporting plate, anti- turnover clump weights, a lower supporting column and the like; the channel gradient adjustment mechanism comprises front and rear supporting blocks, left and right adjustment rotary buttons, left and right limit blocks and the like; the channel plane rotation mechanism comprises a plane bearing, and the four anti-rollover mechanisms are symmetrically connected to the bottom of the crawling channel separately. According to the crawling training device for the infants, the gradient of the crawling channel can be adjusted according to the channel gradient adjustment mechanism, the crawling difficulty of the infants is increased, and the training effect is improved; the device can also assist the infants in developing the direction consciousness, has the advantages of being capable of rotating flexibly and freely,good in safety performance, convenient to use, high in interestingness and the like, and is easy to apply and popularize.

The invention relates to the technical field of intelligent locks, and discloses an intelligent lock convenient to mount and dismount. The intelligent lock comprises a door panel. The top of the frontface of the door panel is fixedly connected with a fixing plate. Sliding grooves are formed in the two sides of the fixing plate. The interiors of the sliding grooves are movably connected with movable sliding blocks, and a connecting plate is fixedly connected between the two movable sliding blocks. A lock face is fixedly connected to the bottom of the connecting plate, and the front face of thelock face is provided with an alarm loudspeaker, a display module, a rotation shaft base, a keyboard and a microphone from top to bottom. According to the intelligent lock convenient to mount and dismount, through the fixing plate fixedly connected to the door panel, the intelligent lock can be conveniently fixed; through the sliding grooves formed in the two sides of the fixing plate, the sliding blocks can conveniently move up and down, accordingly, the lock face is moved up and down, and detaching is convenient; the sliding blocks are prevented from sliding out through a baffle on the topof the fixing plate; the limiting protection function is achieved; a bottom plate at the bottom of the fixing plate plays a supporting role, fixing is conducted through a threaded rod, rapid dismounting and mounting can be achieved, operation is simple, and the purpose of convenient mounting and dismounting is achieved.

A one-dimensional fiber bragg grating vibration sensor with temperature and prestress compensation is characterized in that a track penetrates through the bottom in a sensor shell, a left prestress adjusting table and a right prestress adjusting table are arranged on the tracks on the two sides outside the sensor shell, a mass block is connected to the track in the middle in the sensor shell through a sliding block, and an optical fiber is adhered to the mass block; a first grating and a second grating are inscribed on the optical fiber, tail fibers at the two ends of the optical fiber penetrate through the sensor shell to be fixedly arranged on a left prestress adjusting table and a right prestress adjusting table respectively, a left spring plunger sequentially penetrates through the left prestress adjusting table and the sensor shell, and a positioning ball at the end of the left spring plunger abuts against the left side wall of the mass block. Left spring plungers on the two sides of the left prestress adjusting table are in threaded connection with a left outer adjusting nut and a left inner adjusting nut, a right spring plunger sequentially penetrates through the right prestress adjusting table and the sensor shell, and a positioning ball at the end of the right spring plunger abuts against the right side wall of the mass block. A right outer adjusting nut and a right inner adjusting nut are in threaded connection with right spring plungers on the two sides of the right prestress adjusting table.

The invention relates to the technical field of glass tempering auxiliary equipment, and in particular relates to an air grid lifting device. The air grid lifting device comprises a base, a guide column, a motor and a lifting base, wherein the motor is connected to a driving shaft, and the driving shaft is connected to a driven shaft. The air grid lifting device is characterized in that crank connecting link lifting mechanisms are arranged at two ends of the driving shaft and the driven shaft; the crank connecting link lifting mechanisms are hinged to the lifting seat for driving the lifting seat to lift along the guide column; the front ends of the driving and driven shafts are connected to a first parallel double crank connecting link lifting mechanism and the back ends of the driving and driven shafts are connected to a second parallel double crank connecting link lifting mechanism; the first and second parallel double crank connecting link lifting mechanisms are symmetrically distributed and are driven by the motor to move synchronously so as to drive the driving and driven shafts to rotate synchronously. The air grid lifting device has the advantages that the air grid liftingdevice is simple in structure, stable to operate and small in noise, and meanwhile, the invention also provides a tempered air grid system adopting the air grid lifting device.

The invention discloses an automatic assembling device with an anti-skid clamping structure for an automobile key cover plate, and relates to the technical field of automobile key cover plate assembling. The automatic assembling device specifically comprises an automatic conveying belt, a clamping plate piece and a dust collection assembly, wherein an automobile key main body is arranged on the surface of the automatic conveying belt, the clamping plate piece is arranged on the right side of a touch sensing plate, a limiting plate piece is arranged at the bottom of the left side of a cover plate preparation box, and the dust collection assembly is connected to the tail end of a corrugated pipe. According to the automatic assembling device with the anti-skid clamping structure for the automobile key cover plate, an inner cavity formed by splicing the touch sensing plate and the clamping plate piece is matched with the outer contour of the automobile key main body, so that clamping is realized, and the anti-skid and anti-loosening effects are achieved; and meanwhile, the automobile key main body can be lifted, a cover plate body is pushed out by a feeding push plate so that the uppersurface of the cover plate body can be abutted by the limiting plate piece, and as a result, a clamping piece on the surface of the automobile key main body is accurately clamped into a clamping groove in the bottom of the cover plate body, and the assembling difficulty can be reduced.

The invention discloses a medical nursing anti-slip walking stick for the orthopedics department. The walking stick comprises a sleeve, supports are symmetrically welded to the two sides of the top ofthe sleeve, and a handle is welded to the inner surface wall between the two supports; a shoulder supporting plate is arranged at the tops of the two supports, a hollowed-out plate is arranged in theshoulder supporting plate, fixing pipes are symmetrically welded to the outer surface walls of the inclined ends of the two sides of a supporting column, and buffer springs are connected to the middles of auxiliary supporting feet. According to the medical nursing anti-slip walking stick, through arrangement of the auxiliary supporting feet, when a cushion block is unevenly stressed and slides towards the two sides, a pressure bearing column can be inclined, the auxiliary supporting feet can be in contact with the ground at this moment, and when the auxiliary supporting feet are excessively stressed, the buffer springs can be compressed and deform, and clamping columns can move upwards and be embedded in grooves at this moment; on one hand, the auxiliary supporting feet have the limit andprotection effect, on the other hand, a user is also prevented from slipping down when using the walking stick, the use safety of the walking stick is improved, and then the personal safety of use personnel is guaranteed to the greatest degree.

The invention discloses a multi-angle welding robot, and relates to the technical field of robot equipment. The multi-angle welding robot comprises a bottom plate. A box body is fixedly connected to the top of the bottom plate, a partition plate is fixedly connected between the two sides of the inner wall of the box body, and the position, located on one side of the box body, of the top of the bottom plate is fixedly connected with a protective cover; a motor is fixedly connected to one side of the inner wall of the protective cover, one end of an output shaft of the motor is fixedly connectedwith a worm through a coupling, and the end, away from the motor, of the worm penetrates through the box body and extends into the box body; the end, extending into the box body, of the worm is rotatably connected with one side of the inner wall of the box body through a bearing; and the bottom of the inner wall of the box body is rotatably connected with a robot body through a bearing. Accordingto the multi-angle welding robot, multiple objects can be welded simultaneously, the direction of the welding robot does not need to be adjusted manually, the time and labor are saved, much convenience is brought to workers, and the working efficiency is improved.

The invention discloses a power supply control device of an electric anastomat and the electric anastomat. The power supply control device comprises a control switch assembly, a power supply assembly and a circuit connecting base, wherein the power supply assembly and the circuit connecting base are located in a handle shell containing cavity; the power supply assembly is electrically connected with the circuit connecting base, and the circuit connecting base is provided with a driving wire used for being electrically connected with an anastomat driving source and a pressing control part used for controlling a circuit to be connected and disconnected; the control switch assembly comprises a pressing piece and a triggering piece, when the pressing piece is located at the first position, the triggering piece is limited to move towards the triggering position, and when the pressing piece is located at the second position, the triggering piece can move from the initial position to the triggering position so as to drive the pressing control part to a circuit connection position; and when the triggering piece is located at the triggering position, the pressing piece is limited to move towards the first position. Through blocking cooperation of the pressing piece and the triggering piece, after a power source is used once, the control switch assembly cannot return and reset, and the risk caused by secondary utilization of the power source of the electric anastomat is prevented.

The present invention provides a monorail crane centrifugal release device. The monorail crane centrifugal release device comprises a wheel body, a cylindrical sliding block, a positioning plate, a spring, hexagon socket screws and hexagon nuts; the cylindrical sliding block is installed in a through hole of the wheel body; the positioning plate is welded and fixed on an end surface of the wheel body and also provided with through holes and a lifting lug; one end of the spring is connected to the cylindrical sliding block, and the other end of the spring is connected to the lifting lug of the positioning plate; and the hexagon socket screws pass through the through holes, are abutted against an end surface of the cylindrical sliding block, and are fixed by the hexagon nuts. According to the monorail crane centrifugal release device, the hexagon socket screws and the hexagon nuts are rotated and adjusted to stretch and tension the spring to a preset position, when a monorail crane normally operates, centrifugal force is relatively small, centrifugal force of the cylindrical sliding block and tensile force of the spring are balanced, and the cylindrical sliding block is effectively prevented from moving up and down when the monorail crane normally operates; and the cylindrical sliding block is provided with a circular bench to prevent the sliding block from being thrown away, limiting and protecting effects are achieved, and therefore structure of a centrifugal releaser is stable and reliable.

The invention discloses an intelligent snow removal roof structure and relates to the technical field of intelligent buildings. The intelligent snow removal roof structure comprises a main body, wherein the main body is a right-angled trapezoid in cross-section and the inside of the main body is hollow, the upper slope of the main body is sloped from top to bottom from back to front, the top wallof the main body is provided with rotating holes that are round through holes, the number of the rotating holes is set according to the size of the main body, a rotating rod is provided inside the rotating holes, the rotating rod is a round rod with a smooth surface, the rotating rod extends from the inside of the rotating hole to the top of the main body, a set of fan blades are sleeved on the outer cylinder of the rotating rod, and each set of fan blades are left-and-right symmetrical triangular fan blades. In the invention, by providing a snow removal block, the triangles on the front and back sides of the snow removal block can break the ice that has solidified with water when the triangular blocks on the front and back sides of the snow removal block are in contact with snow piles inside a snow trough during the back and forth movement of the snow removal block inside the snow trough, thereby avoiding the situation that the snow is hard to remove when being solidified with water.

The invention discloses processing equipment for a luggage compartment internal decorative plate with a sensor. The processing equipment comprises an equipment body, mounting support frames, two groups of stamping mechanisms and a slide mechanism. The mounting support frames are in longitudinal arrangement and fixed to the upper surface of the equipment body, and the two groups of stamping mechanisms are used for mounting of a mounting part and the sensor. The slide mechanism comprises a slide drive wheel, a sliding table and a decorative plate support. The slide drive wheel is mounted in theequipment body, and the decorative plate support is fixed to the sliding table which is mounted in a top slide groove of the equipment body. A supporting plate which fits the internal decorative platein shape is arranged at the top of the decorative plate support and provided with a stamping groove corresponding to the sensor, and the sliding table is connected with a slide driving mechanism through a transmission mechanism. The processing equipment is high in stamping mounting speed and high in production efficiency. The internal decorative plate can be accurately transferred to a correct position by a slide device, so that high qualification rate of processed products is realized.

The invention provides a labor-saving conveying device for conveying materials. The labor-saving conveying device comprises conveying frames, lifting frames, a synchronous shaft, hydraulic cylinders,driving pieces and universal wheels, wherein the conveying frames are fixedly connected at the middle positions of the inner sides of two mounting frames through welding brackets; a cylinder body of each hydraulic cylinder is fixedly connected to the two ends of the inner side surface of the corresponding mounting frame, and the output end of each hydraulic cylinder is fixedly connected to the outer side surface of a lifting conveying frame; the inner side surface of each lifting frame is slidably connected with a top plate; the outer sides of the lifting frames are connected to the conveyingframes through the meshing of gears and racks; and the synchronous shaft is rotatably connected to the upper surfaces of the lifting frames through bearings and connected with the lifting frames. According to the labor-saving conveying device for conveying the materials, when the conveying frames are used, the lifting and conveying of a goods tray are realized, and goods are lifted from the bottomof the tray, so that the height of the conveying equipment and the lifting height of the tray are reduced as much as possible, the goods on the tray are conveniently conveyed below a workbench and anoperation table in a workshop, the operation is convenient, and the occupied area is small.

The invention relates to a surfboard fish fin trimming pattern and belongs to the technical field of the processing for the surfboard. The surfboard fish fin trimming pattern includes a pattern platebody, the upper end of the pattern plate is provided with a fish fin support plate, the middle part of the pattern plate is provided with a locating plate and ejector pin passing holes, the lower endof the pattern plate is provided with a horizontal compaction clamp, and a positioning pin is installed in the pattern plate and the locating plate. The fish fin to be trimmed is fixed on the horizontal compaction clamp, the spacing is realized by the pattern plate body and the accuracy of the processing size is guaranteed, The surfboard fish fin trimming pattern has advantages of convenient installation, fast loading and unloading, stable clamp force, and high work efficiency. The processing efficiency and processing quality of the surfboard fish fin is greatly improved.

The invention discloses a novel corrugated steel web external prestress box girder bridge steering device which comprises a cushion frame structure and a buckle frame structure vertically arranged atthe top of the cushion frame structure, the cushion frame structure and the buckle frame structure are the same in shape, and the cushion frame structure comprises a plurality of cushion plates with the same ruler diameter. A steering engine is arranged in the center of the base plate, the top output end of the steering engine is connected with the bottom end of a buckle frame structure, a load-bearing frame is arranged at the top of the buckle frame structure, the load-bearing frame is a square body, an opening is formed in the top of the load-bearing frame, and a plurality of limiting structures are further arranged on the outer side of the steering engine. And a column pipe corresponding to the limiting structure is arranged at the bottom of the base plate. The shapes of the cushion frame structure and the buckling frame structure correspond to each other, and the corresponding limiting structures and the corresponding column tubes are added to the cushion frame structure and the buckling frame structure, so that the cushion frame structure and the buckling frame structure can be adjusted to stretch out and draw back and buckled with the column tubes through the limiting structures, the supporting balance is enhanced, and the limiting protection effect is achieved.

The invention discloses a large-tonnage automobile loading lift, and relates to the field of automobile lifts. The large-tonnage automobile loading lift comprises a lift car and a lift shaft, guide blocks are fixed on the two sides of the lift car, guide rails are fixed on the two sides in the lift shaft, a traction rope is mounted at the top of the lift car, an automobile is loaded in the lift car, and locking assemblies are arranged on the two sides in the lift car. The locking assemblies and limiting assemblies are arranged, first air cylinders operate, and piston rods push clamping blocks to clamp the two sides of an automobile tire located in a positioning groove, so that an automobile is prevented from sliding; two second air cylinders operate, the piston rods can push limiting plates to upwards abut against the position of an automobile chassis, the friction is increased, and the automobile deviation is prevented; and meanwhile, an air pump operates, an air exhaust main pipe exhausts air to enable air exhaust branch pipes and multiple suction grooves to exhaust air, thus the suction grooves attached to the automobile chassis can further adsorb and fix the automobile, automobile loading and transportation are safer and more stable, and the situation that the automobile is not safe enough in the lift car is avoided.

The invention relates to the field of continuous casting machines in the metallurgical industry, in particular to a vibration buffer limit device, which includes a buffer connection frame and a buffer connection seat, an upper roller assembly is arranged on the lower part of the buffer connection frame, a roller mounting frame is arranged on the upper part of the buffer connection seat, and the roller is installed The lower roller assembly is arranged on the frame, the two sides between the buffer connection frame and the buffer connection seat are respectively provided with vertical limit plates, the upper part of the limit plate is provided with a vertical first limit hole, and the upper roller assembly has an upper roller and an upper roller. The roller shaft, the lower roller assembly has a lower roller, and a buffer is arranged between the upper roller and the lower roller. The present invention, through the first limit hole opened on the limit plate, can limit the stroke of the upper roller shaft when the buffer is forced to reciprocate, thereby limiting the position of the reciprocating motion of the buffer, and can give the vibration device It plays the role of limit protection, so as to avoid accidents such as downtime caused by the over-travel operation of the buffer.

The invention discloses a strain type two-component surface frictional resistance measuring balance. The surface frictional resistance measuring balance is of an integrated structure, and is characterized in that a main body is a cylinder; the upper half part of the cylinder is provided with a through hole I and a through hole II which are bilaterally symmetrical; the upper and lower edges of thethrough hole I and the through hole II are straight edges; the left and right side edges of the through hole I and the through hole II are arc-shaped edges; an entity reserved between the through holeI and the through hole II is an X1 measuring beam; the projection shapes of an upper section and a lower section of the X1 measuring beam are symmetrical arcs; and the projection shape of a middle section of the X1 measuring beam is rectangular; entities reserved on the outer sides of the through hole I and the through hole II are separated through symmetrical straight seams to form symmetrical X1 overload protection seams; the lower half part of the cylinder is provided with a through hole III and a through hole IV which are similar to each other, and an X2 measuring beam and an X2 overloadprotection seam are obtained; and the X1 measuring beam is perpendicular to the X2 measuring beam. The surface frictional resistance measuring balance can simultaneously measure surface frictional resistances in two perpendicular directions on the surfaces of a model and an aircraft, and can realize accurate measurement.

The invention discloses a height-adjustable pipeline storage structure. The height-adjustable pipeline storage structure comprises a storage frame and a temporary storage frame which are arranged on a base, wherein the temporary storage frame is arranged on one side of the storage frame, a transferring assembly is arranged on the side, close to the storage frame, of the temporary storage frame, a limiting assembly is arranged on the side, close to the temporary storage frame, of the storage frame, the limiting assembly is used for limiting pipelines in the storage frame, a jacking mechanism is arranged on the other side of the storage frame and conveys the pipelines located in the storage frame into the temporary storage frame one by one through the transferring assembly. Through cooperation of the jacking assembly, the transferring assembly and the limiting assembly, the pipelines in the storage frame are conveyed into the temporary storage frame one by one to wait for hoisting, so that the positions of the to-be-hoisted pipelines can be fixed, thereby guaranteeing that a traveling crane can automatically travel to the temporary storage frame every time, the pipelines can be automatically hoisted conveniently, and the machining efficiency of the heat preservation pipeline is greatly improved.

The invention discloses a car-following rod-colliding preventing device, and relates to the technical field of traffic facilities. The car-following rod-colliding preventing device comprises a barriergate case body and a barrier gate rod, and further comprises a photoelectric sensor installed on the ground. A first-stage stroke switch is installed on the barrier gate case body and corresponds tothe barrier gate rod. A through groove is formed in the lower portion of the barrier gate rod in the length direction. A barrier assembly is arranged in the through groove, and comprises a bearing plate arranged in the through hole, a first-stage releasing device arranged at the inner right end of the through groove, a second-stage releasing device arranged at the left end of the top face of the bearing plate, and a barrier body device arranged on the lower side of the bearing plate. The left side of the bearing plate is rotationally connected with the front side wall and the rear side wall ofthe through groove through rotating shafts. A load bearing block is fixed to the right side of the bearing plate. A pressure spring is arranged at the right portion of the upper side wall of the through groove in the vertical direction. The car-following rod-colliding preventing device has the advantages that the problem that a car behind closely follows a car in front and rushes through a barrier gate rod when passing through a barrier gate can be avoided, and operation is simple.

The invention discloses a crawling training device for infants and relates to a training device for infants. The device comprises a crawling channel, a supporting base, a channel gradient adjustment mechanism, a channel plane rotation mechanism, anti-rollover mechanisms and a music learning control system. The crawling channel is a cross crawling channel, obstacle cloth bags are arranged in the channel, and a direction training operation button is arranged at the inner side of an end point of one end of the channel; the supporting base comprises a supporting plate, anti- turnover clump weights, a lower supporting column and the like; the channel gradient adjustment mechanism comprises front and rear supporting blocks, left and right adjustment rotary buttons, left and right limit blocks and the like; the channel plane rotation mechanism comprises a plane bearing, and the four anti-rollover mechanisms are symmetrically connected to the bottom of the crawling channel separately. According to the crawling training device for the infants, the gradient of the crawling channel can be adjusted according to the channel gradient adjustment mechanism, the crawling difficulty of the infants is increased, and the training effect is improved; the device can also assist the infants in developing the direction consciousness, has the advantages of being capable of rotating flexibly and freely,good in safety performance, convenient to use, high in interestingness and the like, and is easy to apply and popularize.

The invention discloses a hardware water pipe inner wall machining device. The hardware water pipe inner wall machining device comprises a base; a pressure bearing rod is welded to the upper surface of one side of the base; a clamping pipe is welded to the top of the pressure bearing rod; a connection rod is welded to the outer surface wall of one side of the clamping pipe; limiting rings are arranged on the inner surface walls of the horizontal ends of the two sides of the connection rod; a support is welded to the top of a touch board; a drive motor is fixed to the top of the support througha bolt; the drive motor is in transmission connection with a brush roller shaft through a transmission shaft; and limiting boards are symmetrically arranged on the upper surface of the base and located on the two sides of the support. Through arrangement of a lateral roller shaft, the lateral roller shaft is in mutual rolling connection with the touch board, when the support moves left and right,the touch board plays a friction reduction function, at the same time, the move amplitude of the touch board plays the limiting protection function, shaking of the touch board is avoided, and the work stability of the hardware water pipe inner wall machining device is improved.

The invention discloses an active and passive integrated all-metal micro-vibration control device which comprises a supporting rod, diaphragm springs and the like. The supporting rod penetrates in a first shell inner cylinder, and a coil support is fixedly installed at the other end of the supporting rod through a supporting plate. A voice coil motor rotor is installed on the coil support and moves transversely between an inner ring permanent magnet and an outer ring permanent magnet of a voice coil motor stator in the axial direction. One end of a metal spring is fixedly installed at the connecting opening position of a second shell and a first shell through an end cover, and the other end of the metal spring is matched with the end portion of a limiting sleeve. The limiting sleeve is supported in the second shell through a metal rubber gasket. The metal spring is connected with external equipment through an inner thread at the end portion and presses the limiting sleeve. The diaphragm springs are installed between the supporting rod and an end cover of the first shell, between the coil support and the inner wall of the end cover of the first shell and between the supporting plate of the coil support and the end cover of the metal spring. According to the active and passive integrated all-metal micro-vibration control device, wide-frequency-band micro-vibration control can be achieved, the vibration isolation effect of a vibration isolator is improved, and adaptability to various complex environments is improved.

The invention discloses a driving wheel of an electric forklift truck. The driving wheel comprises a driving bracket, a driving motor mounted on the driving bracket, a transmission component and a rubber wrapping wheel component connected to the outer ring of the driving motor in a rotary manner, wherein the driving bracket comprises a mounting part and a connecting part, the connecting part comprises a transverse plate and a hollow connecting column, and a threading through hole communicated with the inner cavity of the connecting column is formed in the side wall of the transverse plate; thedriving motor is fixed to one side of the mounting part, a power control line sequentially penetrates through the threading through hole and the inner cavity of the connecting column to be connectedwith the control system of the electric forklift truck, the transmission component comprises a driving gear, a transmission shaft, a first driven gear and a second driven gear fixedly sleeved on the transmission shaft, the driving gear is fixed to an output shaft of the driving motor, the transmission shaft is mounted on the mounting part through bearing support in a rotary manner, the driving gear meshes with the first driven gear, the rubber wrapping wheel component comprises a sleeve and a rubber wrapping wheel, the sleeve is mounted on the outer ring of the driving motor in a rotary and sleeved manner, and an inner gear ring meshing with the second driven gear is arranged on the inner wall of the sleeve.

The invention discloses a high-reliability motor bearing structure. The structure comprises a stop block which is in contact with one end of a rotor in a motor. The axis of the rotor is provided withan axially extending output shaft, and the output shaft penetrates through the stop block. The structure further comprises a bearing which is assembled with one end of the output shaft. The stop blockis located between the rotor and the bearing, and the bearing is a radial bearing sequentially composed of an inner ring, a ball and an outer ring from the centroid to the outside. The structure further comprises an end cover which wraps the shaft end of the motor. The end cover is provided with a pit for accommodating the bearing. The side wall of the pit is in contact with the outer ring of thebearing, and the bottom of the pit is in contact with the shaft end on one side of the bearing. The structure further comprises a compression spring. The output shaft is sleeved with the compressionspring. One end of the compression spring makes contact with the stop block, and the other end of the compression spring makes contact with the inner ring of the bearing. The elastic force is appliedto the bearing on the motor all the time, so that the bearing is prevented from being loosened and abraded after being used for a long time. The noise of the motor can be reduced, and meanwhile the rotating resistance of the motor is not increased.