24315 results about "Pulley" patented technology

A cutting device includes a base plate, a motor attached to the base plate, a driving cord including a first end and a second end, the first end being attached to the motor, and a cutting assembly. The cutting assembly includes a fixed blade that is fixed to the base plate, and a driven blade that moves with respect to the fixed blade. The second end of the driving cord is attached to the driven blade to move the driven blade with respect to the fixed blade when the motor rotates.

A wall-mounted fly wall rack, which can be installed on a wall, comprises a rack body, a pulley assembly and a counterweight mechanism arranged on the rack body, wherein the rack body comprises a fixed frame and at least two movable frames; an adjustable locking mechanism is arranged between the movable frames and the fixed frame and is horizontally rotatably connected in a limited angle range; the adjustable locking mechanism comprises a pivot arm and a fixed arm; the movable frame is connected with the pivot arm, and the fixed frame is connected with the fixed arm.

The invention relates to the technical field of underground casing monitoring, and discloses an injection well immovable string casing damage rapid detection device based on efficient testing and adjusting, the injection well immovable string casing damage rapid detection device comprises a testing vehicle, a top sheave and a casing, one side in the testing vehicle is provided with a ground control system, and the other side in the testing vehicle is provided with a double-roller winch; a cable is wound on the outer side of the double-roller winch, an electromagnetic flaw detection testing instrument is installed at one end of the cable, an oil pipe is arranged in the casing pipe in a sleeved mode, a plurality of packers are sequentially installed between the outer side of the oil pipe and the inner wall of the casing pipe from top to bottom, and a plurality of water distributors are sequentially distributed in the oil pipe from top to bottom. A water injection well efficient testing and adjusting technology and an electromagnetic flaw detection technology are combined, an electromagnetic flaw detection testing instrument is tripped in through a testing vehicle, cable power supply and communication are tested, a ground control system carries out signal acquisition and processing on the electromagnetic flaw detection instrument, and rapid detection of casing damage of a water injection well immovable string is achieved.

The invention relates to a water-drop-shaped captive balloon high-altitude wind power generation system. The water-drop-shaped captive balloon and kite cloth carried by the water-drop-shaped captive balloon are used for generating lift force to drive a ground power generator to generate power. The lift force generation mechanism is that the windward side and the wind resistance are increased by adjusting the pitch angles of the aerostat and the bearing kite cloth, and the wind resistance is converted into cable tension to drive power generation. A V-shaped pulley expansion mode is adopted to uniformly distribute tension of main and auxiliary cables, so that bag damage caused by non-uniform stress in a posture adjusting process is avoided; the captive balloon is provided with an attitude controller, communicates with a ground control system through wireless data transmission, adjusts the take-up and pay-off speed of a main cable and an auxiliary cable to control the pitching angle to achieve lift force control, and greatly improves the power generation efficiency. The main cable power output winch drives a generator to generate electricity through a one-way bearing, and the input end is connected with a motor through a clutch to achieve cable recovery. The backpack kite cloth can be controlled to open and close through a small winch to increase and decrease wind resistance; lift force and wind resistance control is optimized, the power generation efficiency is improved, safety is enhanced, operation is simplified, and maintenance is convenient.

An exercise machine, having: (a) a frame; (b) a pair of weight stacks connected to opposite sides of the frame; (c) a pair of vertically moveable pulley carriages connected to front portions of the frame; (d) a lifting bar assembly connected to a rear portion of the frame; (e) a pair of arm cables, wherein each of the arm cables are connected to one of the pulley carriages and pass around a first series of pulleys such that the weight stacks are lifted when the arm cables are pulled by a user through the pulley carriages; and (f) a pair of lifting bar cables respectively connected to a pair of vertically moveable bar mounts of the lifting bar assembly that pass around a second series of pulleys such that the weight stacks are lifted when a lifting bar of the lifting bar assembly is raised by the user.

The invention relates to the technical field of railway catenary monitoring, in particular to a multi-source sensing fusion method and system for state evaluation of a catenary compensation device, and the method comprises the steps: obtaining multi-source sensing data such as vibration, temperature and current, generating a phase space trajectory through employing a self-adaptive phase space reconstruction technology, and carrying out the state evaluation of the catenary compensation device; multiple topological features are extracted to form topological feature vectors, and the vectors are combined with temperature and current data to construct a fault probability model. According to the method, the health degree score of the contact network compensation device can be calculated, trend prediction can be carried out, early warning information can be generated, high-precision early warning is realized, the clamping stagnation risk of the pulley block can be predicted three months in advance, passive response is converted into active prevention, the maintenance efficiency and safety of the contact network are remarkably improved, and the maintenance cost is reduced. By means of the innovative technology, the safety of railway operation is improved, the maintenance cost is reduced, and revolutionary transformation is brought to the railway industry.

An exercise system includes a base structure including a first cross brace including first cross brace mounting plates disposed at each end of the first cross brace. A pair of base guide rail supports is secured to and extended substantially orthogonal from the first cross brace and includes a pair of base guide rail receivers. A pair of base pulley supports is secured to and extended substantially orthogonal from the first cross brace and further includes a pulley-support pulley housing. A pair of pulley-support pulleys is rotatably secured to the pulley-support pulley housing. A second cross brace includes a central portion substantially parallel to the first cross brace. The central portion is secured to the pair of base guide rail supports and the pair of base pulley supports. Two end portions are disposed at an angle to the central portion and terminate at second cross brace mounting plates disposed at each end of the two end portions and two central-portion pulley housings. A central-portion pulley is rotatably secured to each of the two central-portion pulley housings.

The invention discloses a forearm of a manipulator, which is provided with a wrist joint axis and an elbow joint axis, and comprises a shell comprising a supporting part and a main body part which are integrally formed, and the supporting part is provided with a first pressing end; the wrist belt wheel is coaxial with the axis of the wrist joint, the wrist belt wheel and the shell form a mounting space, the wrist belt wheel comprises a shaft part and a belt wheel part which are integrally formed, and a second pressing end is formed at the joint of the shaft part and the belt wheel part; the bearing is arranged in the mounting space, and the bearing is provided with an inner ring and an outer ring; the pressing assembly is coaxial with the axis of the wrist joint and comprises a first pressing piece and a second pressing piece; wherein the first press-fit part and the first press-fit end form axial constraint on the outer ring of the bearing, and the second press-fit part and the second press-fit end form axial constraint on the inner ring of the bearing, so that the wrist belt wheel can rotate relative to the shell through the bearing. By adopting the scheme, the concentricity of the forearm of the manipulator is improved, and the axial mounting space is reduced.

The invention discloses a mirror surface paperboard slitting device and method. The device comprises a treatment bin, an air flotation conveying mechanism, a slitting mechanism and a dust collection body. The air floatation conveying mechanism sprays an air film to the bottom face of the paperboard through a first air conveying structure and a second air conveying structure which are symmetrically arranged, and sprays an air film to the top face of the paperboard through a first air pressure structure and a second air pressure structure, and double-face non-contact conveying is achieved. The slitting mechanism adopts a servo motor to drive a helical tooth column for meshing transmission, a belt pulley transmission main body drives a blade to rotate, and vertical and front-back position adjusting assemblies are integrated and matched with a blade bottom cambered surface supporting wheel to provide anti-deformation support; the dust collection body is arranged in a front-arranged mode to absorb slitting dust in real time. The method comprises the steps of paper jam release, double-sided air flotation starting, limiting adjustment, multi-dimensional slitting control, synchronous dust collection and finished product storage. The problems of mirror surface damage, insufficient slitting precision and dust pollution are solved, and the slitting quality and efficiency are remarkably improved.

An umbrella assembly includes a support pole having a locking fixture, a lower hub assembly movably coupled to the support pole, umbrella ribs extending from the lower hub assembly, and a canopy extending over the umbrella ribs. The lower hub assembly can be moved along the support pole to move the umbrella assembly between open and closed configurations. The lower hub assembly includes a runner hub and a hub controller. The hub controller includes an upper portion, a handle portion, and a locking mechanism integrated into the handle portion. The locking mechanism includes an actuator, a locking feature coupled to the actuator, and a spring configured to bias the actuator towards the support pole. The actuator is moveable between a first position in which the locking feature is engaged with the locking fixture and a second position in which the locking feature is disengaged from the locking fixture.

A water tank wire drawing machine for metal wire machining comprises a water tank and a wire drawing mechanism, a cooler is arranged in a first water tank, and the cooler comprises a cooling water pipe arranged above a wire drawing cone pulley and a wire drawing die and a flow guide component arranged below the wire drawing cone pulley and the wire drawing die; the cooling water pipe is used for spraying cooling liquid to the upper side of the wire drawing cone pulley and the upper side of the wire drawing die, the cooling liquid is used for cooling the parts, making contact with the wire, of the wire drawing cone pulley and the wire drawing die, meanwhile, the cooling liquid can also achieve the lubricating effect, and the abrasion condition of the wire in the wire drawing process is further reduced; the cooling liquid near the wire drawing cone pulley and the wire drawing die can flow downwards and be guided out through the shape structure of the flow guide component, the flowing speed of the cooling liquid near the wire drawing cone pulley and the wire drawing die can be increased, and the cooling effect on the wire drawing cone pulley and the wire drawing die is improved.

The invention relates to the technical field of non-metal waste treatment, in particular to recycling equipment for plastic defective products. In order to solve the problem that when a pipe rolls during crushing, the residence time of materials in a crushing cavity is prolonged, and the crushing efficiency is low. Comprising a bottom frame, a crushing shell is fixedly connected to the bottom frame, a connecting and guiding shell is fixedly connected to the crushing shell, a crushing roller set is arranged in the crushing shell, a motor is fixedly connected to the bottom frame, transmission is conducted between an output shaft of the motor and the crushing roller set through a belt wheel and a belt, extrusion rollers distributed in a mirror image mode are rotationally connected to the crushing shell, and the extrusion rollers are connected to the crushing shell. And the extrusion rollers in mirror image distribution are in transmission through a gear set. According to the pipe crushing device, a pipe is pre-compressed in advance through the extrusion rollers when the pipe is crushed, a cylindrical pipe is compressed into an elliptic cylindrical pipe, then vertical feeding crushing is conducted, the rolling probability of the pipe during crushing is reduced, and the crushing efficiency of the pipe is improved.

A resistance training machine, a method of providing custom workouts, and a method of providing feedback on user form and user balance are disclosed. The resistance training machine includes a left and right motor, a left and right pulley system, a left and right cable, a machine controller, and a human machine interface. Advantageously, the resistance training machine can provide isotonic exercises, isokinetic exercises, and feedback on form and balance for a user. The first method includes a user calibrating one or more exercises, selecting an exercise, selecting an exercise mode, and performing the exercise. For each exercise, a motor may ramp up to and ramp down from a selected velocity or force level.

The invention discloses a hoisting device and method for casting production. The hoisting device comprises a hoisting plate, two clamping pincers and an automatic telescopic piece, and two sets of inserting claws are arranged at the bottoms of the two clamping pincers in a staggered mode; two pulleys are connected below the lifting plate in a left-right sliding mode, the top ends of the clamping pincers are each fixedly connected with a set of lifting ropes, and the two sets of lifting ropes are crossed, then bypass the pulleys in the opposite side directions and are connected with the inserting claws; a rectangular ring is arranged at the crossed position of the lifting ropes, the upper end of the rectangular ring is connected with an automatic telescopic piece, a rhombic four-bar linkage is hinged to the lower end of the rectangular ring, and the left and right sides of the rhombic four-bar linkage are hinged to power arms of the clamping pincers; through the arrangement of the automatic telescopic piece, the lifting plate, the clamping pincers, the pulley, the inserting claw, the rectangular ring and the lifting rope, the automatic telescopic piece stretches out and draws back up and down, the two clamping pincers can be driven to be opened or closed through the rhombic four-bar linkage, and therefore a casting is automatically clamped or released, and time and labor are saved; in addition, through coordination and cooperation of a lifting rope, a rhombic four-bar linkage and an inserting claw, the clamping effect on the casting is improved.

The invention provides a test device for simulating ejection impact load, which is characterized in that side columns of the test device are fixedly arranged, a movement guide rail is arranged on the inner wall of each side column along the vertical direction, a variable stiffness spring is arranged below each movement guide rail, and an electromagnet is arranged at a certain height between the two side columns. The load block is connected with the electromagnet under the magnetic force effect of the electromagnet, the two ends of the load block are slidably connected with the movement guide rails, the impact force sensor is arranged on the load block, the lower bottom face of the impact force sensor is flush with the lower end faces of the two ends of the support, and the model box is arranged below the load block and filled with soil. The surface of a soil body in the model box is flush with the upper end face of the variable-rigidity spring, each crank pulley mechanism is arranged on the corresponding side column and located above the variable-rigidity spring, and after the load block impacts the soil body for the first time and bounces, limiters in the crank pulley mechanisms move to the movement guide rails to prevent the load block from impacting the soil body again.

The utility model relates to the field of door and window processing, and discloses a welding device for metal door and window processing, which comprises a bottom plate, an adjusting mechanism, an arc plate, a control module and a metal door and window, two supporting plates are arranged on the bottom plate, a same workbench is arranged at the tops of the two supporting plates, an arc plate is fixedly installed on the workbench, two sliding rails are arranged on the arc plate, pulleys are connected into the two sliding rails, one ends of the two pulleys are fixedly connected with a same box body, an adjusting mechanism is arranged on the box body, and the adjusting mechanism is arranged on the box body. A control module is arranged on the workbench, and the adjusting mechanism is connected with the control module. Compared with the prior art, the metal door and window welding device has the advantages that the top and the bottom of the metal door and window can be welded without turning over the metal door and window through cooperation of all the components, convenience and machining efficiency are improved, the structure is simple and convenient, and practicability is higher.

A personal exercise device with a cable and resistance mechanism comprises a sensor arrangement configured to detect two orthogonal angles to define a trajectory of the cable extending in a 3-dimensional space during use. The sensor arrangement comprises a pulley to direct the cable as it extends from the device during use, a cable follower through which the cable passes, the cable follower pivotally mounted to pivot about a first pivot axis and about a second pivot axis, the second pivot axis orthogonal to the first pivot axis, and wherein the first pivot axis is collinear with a rotational axis of the pulley, and one or more sensors configured to detect pivoting of the cable follower about the first and second pivot axes and provide one or more outputs indicative of the two orthogonal angles to define the trajectory of the cable extending in the 3-dimensional space.

The invention relates to the technical field of mirror roller surface polishing, in particular to a mirror roller surface polishing device which comprises a polishing assembly used for polishing the surface of a mirror roller body, the polishing assembly comprises a belt pulley set, one end of the belt pulley set is fixedly connected with a reciprocating lead screw, and the reciprocating lead screw is rotationally connected with two sets of mounting supports. Two sets of wire grooves are symmetrically formed in the surface of the reciprocating screw rod, the surface of the reciprocating screw rod is in meshed connection with moving rings, a gear ring is arranged between the middles of the moving rings, a plurality of sets of mounting bases of arc-shaped structures are arranged in the gear ring at equal intervals, and grinding pieces are clamped to the inner arc surfaces of the mounting bases; the surface of the gear ring is connected with a meshing gear ring in a meshing mode, and two sets of sliding blocks are symmetrically installed on the inner wall of the meshing gear ring. Through cooperative use of all the parts, the grinding efficiency of the mirror surface roller body can be improved, and the grinding time is saved.

The utility model discloses a landscape ecological vertical greening structure, which relates to the technical field of landscape ecological vertical greening and comprises a U-shaped base, a trimming unit, a lifting unit for trimming the whole vertical plane and a height fixing unit for adjusting the vertical height according to greening types. The interior of the U-shaped base is hollow, the two ends of the U-shaped base are connected with height adjusting strips in an up-down sliding mode, and the height adjusting strips on the two sides are bound with attachment nets. The trimming unit comprises vertical grooves symmetrically formed in the exteriors of the two sides of the two height adjusting strips, the vertical grooves penetrate through the two sides of the U-shaped base, and the interiors of the vertical grooves are slidably connected with groove pulleys; the reciprocating moving plate drives the T-shaped cutter strip on the reciprocating moving plate to do horizontal reciprocating motion, plants climbing on the attachment net can be trimmed, the grooved pulley moves upwards, the trimming strip moves upwards synchronously, the vertical face parallel to the whole attachment net is trimmed comprehensively, trimming is more comprehensive, efficiency is higher, and the device is safer and better in effect during use.

The invention discloses edible mushroom culture medium mixing equipment, and belongs to the technical field of edible mushroom culture medium processing, the edible mushroom culture medium mixing equipment comprises a shell, a discharge valve is fixedly connected to the lower surface of the shell, a motor is fixedly connected to the surface of the shell, a transverse plate is fixedly connected to the inner wall of the shell, and a connecting shaft is rotatably arranged in the transverse plate; a pipe sleeve is movably arranged on the lower surface of the connecting shaft, and mixing blades are fixedly connected to the surface of the pipe sleeve; a connecting rod is slidably arranged in the transverse plate, and the lower surface of the connecting rod is fixedly connected with a shifting plate moving in the horizontal direction. The upper portion of the shell is of an open structure, during working, raw materials are added into the shell, the motor is started at the same time, when the motor works, the belt pulley drives the connecting shaft, the pipe sleeve and the mixing blades to rotate, meanwhile, the pipe sleeve and the mixing blades move in the vertical direction, the mixing effect is optimized, and the finished product quality is better.

The invention discloses an anti-clogging water supply and drainage filtering device, and relates to the technical field of water supply and drainage filtering, the anti-clogging water supply and drainage filtering device comprises a water supply and drainage pipeline, and the front end and one side of the water supply and drainage pipeline are respectively provided with a water inlet and a water outlet. The driving motor drives the supporting shaft A to enable the rolling brush to revolve, the rolling brush reversely rotates by means of the fluted disc A and the gear ring A, and dynamic shearing force is formed to efficiently strip impurities on the surface of the filter screen; the inclined push plate and the rolling brush guide the stripped impurities into the impurity guide piece through centrifugal force, and the spiral piece is combined for discharging, so that secondary blockage is avoided; the supporting shaft A is linked with the supporting shaft B through the belt pulley group, so that the filter screen reversely rotates at a constant speed, the relative speed of the rolling brush and the filter screen is multiplied, the impurity stripping effect is enhanced, loose impurities are thrown to the edge of the filter screen through centrifugal force, the accumulation risk of a central area is reduced, and self-cleaning of the filter screen, directional discharging of the impurities and dynamic prevention and control of the blocking risk are achieved through the mode. The continuous operation efficiency of the water supply and drainage filtering device is effectively improved, and maintenance cost and energy consumption are reduced.

Endoscope has vertical bending operation wires transmitting a pulling force to a bending portion of an insertion portion, a vertical bending pulley having pulley grooves on an outer circumference, and wire guides in a partial region in a circumference direction of each pulley groove and guiding the vertical bending operation wires to be wound in the respective pulley grooves. The pulleys rotate within a 180-degree angular range, and a width of a bottom portion of each pulley groove allows each wire to be wound for at most two revolutions. The width of the bottom portion of the pulley groove is narrowed down with each wire guide so that each wire is wound only one revolution in a rotation axis direction of each pulley, and a tapered shape of each wire guide guides the wire to be wound in the partial region to the bottom portion of each pulley groove.

The invention relates to a method for manufacturing a server shielding cable in the technical field of information, which comprises the following steps of: after a cable structure is determined, manufacturing by adopting a precise extrusion and weaving process, strictly controlling the temperature in a range of 1150-2100 DEG C and the pressure parameter in a range of 0.5-1.5 MPa in the production process, and manufacturing the server shielding cable by adopting the precise extrusion and weaving process. The size precision and consistency of the cable are ensured, the manufacturing defects are found and eliminated in time by using the on-line detection and quality control technology, and the qualified rate and reliability of the cable are improved; after manufacturing is completed, cable wiring design is carried out, a three-dimensional wiring simulation technology is adopted, the wiring path and the bending radius of the cable in a narrow space are optimized, a pulley guide device and an elastic fixing clamp which can adjust tension are designed, stress concentration of the cable in the wiring process is reduced, the service life of the cable is prolonged, and according to the wiring design result, the cable is manufactured. And the overall structure of the cable is further optimized so as to meet the requirements of an actual wiring environment.

The invention belongs to the technical field of vibration control, and provides a large-span bridge vortex vibration control device. The large-span bridge vortex vibration control device comprises a cable, a sling, a pulley, a balancing weight, a damping element, an extension spring and other components, and multi-order vortex vibration of a large-span bridge can be controlled at the same time through parameter optimization design and reasonable arrangement without tuning. During vortex vibration of a bridge, the main beam moves relative to the cable, the sling and the balancing weight, and the damping element provides damping force for the device, so that vortex vibration of the bridge is effectively controlled. The device is simple in design, light in weight, low in manufacturing cost, high in efficiency and good in durability, is suitable for multi-order vortex vibration control, and also plays a role in inhibiting buffeting, flutter and vibration caused by traffic load.

The utility model discloses an undercarriage drop test stand, which comprises a vertical track support, a vertical pulley assembly is arranged on the vertical track support, the vertical pulley assembly moves up and down along the vertical track support, and a cantilever pulley track assembly is fixedly connected to the vertical pulley assembly. The cantilever pulley track assembly moves up and down along the vertical track support along with the vertical pulley assembly, a horizontal pulley assembly is connected to the cantilever pulley track assembly in a sliding mode, an undercarriage mounting base is arranged on the lower side of the horizontal pulley assembly, and the undercarriage mounting base directly faces an inclined plane base plate arranged on the ground. According to the invention, impact generated by vertical falling of the undercarriage can be simulated, horizontal displacement generated by falling contact with a slope can also be simulated, various simulation test environments are provided, and the damage degree of the undercarriage and the stability of a connection area of the undercarriage and an aircraft main body are judged according to recorded test data.

The invention discloses a drilling device and method for greenhouse steel pipe production, belongs to the technical field of steel pipe drilling, and provides the following scheme that the drilling device comprises a drilling mechanism, and a drilling auxiliary mechanism is arranged in the drilling mechanism; the drilling assembly moves downwards, a pulley moves along with the drilling assembly and extrudes an inclined plane between the pulley and a sliding rail, a first piston rod moves, an elastic supporting assembly is hydraulically driven to move, a supporting head enters a steel pipe fitting, the steel pipe fitting can be limited by the supporting head, and meanwhile an inner cavity of the steel pipe fitting is full of the supporting head; secondly, the elastic supporting assembly further drives the toothed bar and the clamping assembly to conduct transmission, so that the clamping assembly clamps and fixes the steel pipe, then extrusion movement between a pulley and a sliding rail is adopted, acting force can be converted through hydraulic pressure, and therefore the steel pipe can be clamped and fixed; and the toothed bar smoothly drives the clamping assembly to complete automatic positioning of the steel pipe fitting, so that the purpose of efficient operation is achieved.

A pulley device according to the present disclosure includes a loop string including a ring-shaped loop portion formed in an upper portion and first and second string extension portions extending downward, a loop fixing stopper through which the first and second string extension portions pass and to which a loop portion is connected to form a knot, and a pulley to which the first and second string extension portions are connected and which includes a pulley wheel.

The invention discloses a welding tool for a metal joint of an automobile brake pipe, and relates to the technical field of welding tools. The bracket assembly is fixedly mounted at the top of the base; the downward pressing assembly is arranged at the bottom of the support assembly; the welding gun spray head is fixedly mounted at the bottom of the downward pressing assembly; the synchronous turnover mechanism is arranged at the top of the base; the synchronous turnover mechanism comprises a rotating shaft, a first servo motor and two first belt wheels, the output end of the first servo motor is connected with the rotating shaft, the two first belt wheels are both installed on the outer surface wall of the rotating shaft, and the outer side of each first belt wheel is sleeved with a first transmission belt; according to the automobile brake pipe and metal joint welding device, through the arrangement of the synchronous turnover mechanism, the automobile brake pipe and the metal joint which are clamped and in butt joint are driven to rotate synchronously, the welding work difficulty is reduced, the welding precision is improved, and the defective product yield is reduced.

The utility model relates to the technical field of food processing, in particular to an automatic dough mixer which comprises a rack and further comprises a dough hopper, a stirring mechanism, a dough mixer, a dough mixer and a control system, one end of the flour hopper is connected with a worm gear which is meshed with a horizontal worm, and one end part of the worm is connected with a tipping bucket belt wheel; the switch baffle is fixedly mounted at the upper end of the side of the worm gear; the two limiting switches are installed on the machine frame and comprise the limiting switch a and the limiting switch b, the limiting switch a and the limiting switch b are located on the two sides of the switch blocking piece respectively, and when the switch blocking piece makes contact with the limiting switches, the noodle hopper stops overturning; the proximity switch catch is fixedly mounted at the lower end of the side of the worm gear; the two proximity switches are respectively a proximity switch a and a proximity switch b, the proximity switch a and the proximity switch b are fixed on the arc-shaped mounting plate, and after the proximity switch separation blade is in contact with the proximity switches, the noodle hopper stops overturning. According to the utility model, the overturning and aligning of the flour hopper can be accurately controlled.

The invention relates to the technical field of machining, and discloses belt pulley precision punching and surface polishing integrated equipment which comprises a loading box, a guide rod is connected to the top end of the loading box, a mounting transverse plate is slidably arranged at the top end of the guide rod, and multiple sets of downward pressing hydraulic cylinders are connected to the top end of the mounting transverse plate; and the output end of the downward pressing hydraulic cylinder penetrates through the mounting transverse plate and is connected with a connecting shell, and an adjustable drilling mechanism is arranged in the connecting shell in a connected mode. A belt pulley is positioned through the clamping unit, meanwhile, the belt pulley can be well positioned due to the moving synchronism of all the inner supporting blocks, multi-hole work can be conducted on the belt pulley at the same time through the adjustable drilling mechanism, the device is also suitable for machining of belt pulleys of different sizes, the working efficiency is effectively improved, and the practicability is high. The machined belt pulley rotates in the polishing sand, polishing work is conducted through friction, operation procedures are reduced, the production cost is reduced, and meanwhile the working efficiency is further improved.