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75results about "Lawn machines" patented technology

Turf maintenance system and methods

A turf maintenance system acquires data from one or more turf systems, generates a dashboard display screen to display the data acquired from the one or more turf systems, and schedules tasks for completing a turf maintenance job based on the acquired data.
Owner:THE TORO COMPANY

Rolling lawn aerator

The present application discloses a rolling lawn aerator, including a perforating device, where the perforating device is capable of rolling on a lawn so as to perforate and aerate the lawn. The perforating device includes a body assembly and a plurality of perforating assemblies, and the plurality of perforating assemblies are arranged in a circumferential direction of the body assembly; and each of the perforating assemblies includes a perforating pipe, and at least a part of a structure of the perforating pipe exceeds the body assembly in a radial direction of the body assembly.
Owner:ZHANG KUN

Lawncare apparatus, method, and system

The present invention is a lawn maintenance machine capable of aerating, slicing, spiking, and depositing seeds all within a single pass. The present invention is an adaptor system for adapting a pre-existing system so as to enable the current devices to be capable of aerating, slicing, spiking, and depositing seeds all within a single pass. Another aspect of the current invention is a method for adapting a currently existing system so as to be capable of aerating, slicing, spiking and depositing seeds all within a single pass. Another aspect of the present invention is a riding aerator with slicer, spiker, seeder, and spreader.
Owner:MORRIS SR MATTHEW LEAVITT

A method of repairing a degraded sward by overseeding

The application discloses a method for repairing and restoring a degraded mowing grassland to its original state, and comprises the following steps: step 1, deep cutting, a deep cutting seam with a length of not less than 10 cm is vertically cut on the surface of the degraded mowing grassland by using a disc cutter; step 2, vertical trenching, a soil and root system in the deep cutting seam is crushed by using a corrugated disc along the deep cutting seam, and the crushing depth is 6 cm to 8 cm; step 3, middle layer seedbed preparation, a T-shaped seedbed is prepared in the vertical trench by using a T-shaped seedbed preparation device in the vertical trench direction, and the seedbed depth is 4 cm to 6 cm; and step 4, blowing and pressing, blowing and fertilizing is firstly carried out along the vertical trench, and then a presser is used to press the seedbed. In the method, the cutting seam depth is increased, the soil and root system in the cutting seam is disturbed, the similar 'upper virtual lower actual' plough layer condition and the T-shaped seedbed for increasing temperature and preserving soil moisture are created, and the damage to the grassland is reduced.
Owner:CHINA AGRI UNIV

No-till cover-seeding method for restoring degraded mowing and grazing grassland

Disclosed in the present invention is a no-till cover-seeding method for restoring a degraded mowing and grazing grassland. The method comprises: step 1, providing a slot in a deep layer, wherein a disc cutter is used to vertically cut a non-ridged deep cut slot of not less than 10 cm downwards into a surface of a degraded mowing and grazing grassland; step 2, providing a vertical furrow in a mid-deep layer along the slot, and using a corrugated disc to chop soil and root systems on inner walls of the deep cut slot along the deep cut slot, wherein the chopping depth ranges from 6 cm to 8 cm; step 3, making a seedbed in a middle layer along the vertical furrow, wherein an inverted-T-shaped seedbed preparation device is used to prepare an inverted-T-shaped seedbed in a lower middle portion of the vertical furrow in the direction of the vertical furrow, wherein the depth of the seedbed ranges from 4 cm to 6 cm; and step 4, performing seed blowing and fertilizer blowing along the vertical furrow first, and then using a compacting device to compact the seedbed. In the present invention, without ridging the surface of the grassland, the depth of the slot is increased, the disturbance to soil and root systems inside the slot is increased, and a plough layer condition with "loose upper soil and compact lower soil" that is similar to farmland soil, and an inverted-T-shaped seedbed that increases temperature and conserves moisture are created, thereby reducing damage to the grassland.
Owner:CHINA AGRI UNIV

A high-pressure jet injection lawn loosening machine

ActiveCN224267303ULawn machinesVehicle frameJet injection
This invention provides a high-pressure jet injection lawn loosening machine, including a frame, wheel assembly, working unit, and control unit. The working unit includes an injection assembly, a water circuit assembly, and an air circuit drive assembly. The injection assembly includes an injection cylinder, a movable circular pressure plate sleeved on the lower end of the injection cylinder, and an injection tube fixed to the lower end of the injection cylinder and passing through the movable circular pressure plate. An elastic element is provided between the movable circular pressure plate and the cylinder seat of the injection cylinder. The water circuit assembly includes a water tank, a high-pressure pump, a high-pressure storage tank, and a switch valve. The outlet of the water tank is connected to the inlet of the high-pressure pump, and the outlet of the high-pressure pump is connected to the inlet of the high-pressure storage tank. The outlet of the high-pressure storage tank is connected to the injection tube via the switch valve. The air circuit drive assembly includes an air compressor, which is connected to the injection cylinder and used to drive the injection cylinder to move the injection tube in a reciprocating injection motion. This invention allows the site to be used immediately after operation without a recovery period and can be operated by a single person.
Owner:徐海兴

Lawn maintenance system

The invention discloses a lawn maintenance system, and relates to the technical field of lawn nursing, and the lawn maintenance system comprises a parameter collection module which is used for dynamically collecting the current parameters of a lawn; the ground walking module is used for moving the lawn maintenance system to a target position of the lawn, and the target position is a lawn area needing maintenance; the temperature and humidity control module is used for regulating and controlling the temperature and / or humidity of the lawn according to the current parameters acquired by the parameter acquisition module; and the oxygenation stress resistance module is used for providing oxygen and / or stress resistance factors for the lawn according to the current parameters acquired by the parameter acquisition module. According to the application, the regulation and control of multiple environmental factors of the lawn are realized through the synergistic effect of the modules, and the stress resistance of the lawn is enhanced.
Owner:SHENZHEN WENKE LANDSCAPE CO LTD

Tool holding device for piercing tools of a soil working device

PendingEP4681518A1Lawn machines
A Tool holding device (1) for piercing tools (2) of a soil working device (4) for creating cavities in a soil (5) is provided, with - at least one basic tool body (6) which can be coupled with a machine frame (30) of the soil working device (4), - several tool-receiving-cavities (10) in the basic tool body (6), into each of which a piercing tool (2) can be inserted, whereby the cross-sections of the tool-receiving-cavity (10) are adapted to the cross-sections of the piercing tools (2) to be received, - at least one fastening device (12) per tool-receiving-cavity (10), with which the piercing tools (2) can be fastened in the tool-receiving-cavity (10), wherein the at least one fastening device (12) has a fastening-receiving region (14) into which the respective piercing tool (2) can be introduced when it is inserted into the tool-receiving-cavity (10), wherein, when the respective fastening device (12) is tightened, at least one clamping surface (16) of the respective fastening-receiving region (14) can be pressed against at least one piercing tool (2) introduced into the respective fastening-receiving region (14) in such a way that the introduced piercing tool (2) can be clamped between the clamping surface (16) of the respective fastening-receiving region (14) and at least one surface (18) of the respective tool-receiving-cavity (10).
Owner:REDEXIM BV

Lawn maintenance device with screening function

According to the technical scheme, the lawn maintenance device with the screening function is characterized in that the lawn maintenance device comprises a vehicle body, a sand storage box, a sand covering mechanism, a bulldozing mechanism and a punching mechanism, the screening mechanism is arranged in the sand storage box, a sand outlet is formed in the lower end of the sand storage box, and the sand covering mechanism is arranged at the sand outlet; the bulldozing mechanism and the punching mechanism are arranged on the two sides of the sand covering mechanism correspondingly. The screening mechanism comprises a screening seat, a screening disc and a driving part, a plurality of sand storage cavities are formed in the screening seat, the screening disc is rotationally connected to the lower end of the screening seat, a discharging opening is formed in the screening disc, and the multiple sets of punching mechanisms are arranged in the width direction of the vehicle body at equal intervals; and the bulldozing mechanism comprises a bulldozing plate and guide structures, the guide structures are arranged in the length direction of the bulldozing plate at equal intervals, the guide structures and the punching mechanisms are arranged in a one-to-one correspondence mode, and the full-automatic maintenance all-in-one machine can conduct a series of operations such as sand filtering, sand covering and punching.
Owner:ZHEJIANG RUIJIA CONSTR GRP CO LTD

Lawn punching device

The utility model discloses a lawn punching device, and relates to the technical field of landscaping engineering. A portal frame is fixedly installed on the top face of the base, an air cylinder is fixedly installed on the bottom face of the portal frame, a connecting block is fixedly connected to the surface of the telescopic end of the air cylinder, a distance adjusting mechanism is arranged on the surface of the connecting block, punching rods are fixedly installed on the surface of the distance adjusting mechanism, the number of the punching rods is three, and punching heads are fixedly installed on the bottom faces of the punching rods. Buffering mechanisms are arranged on the surfaces of the punching rods, and through grooves are formed in the surface of the base. According to the lawn punching device, the distance adjusting mechanism drives the punching rods on the two sides to move face to face or back to back, the distance between the three punching rods can be adjusted, the air cylinder on the surface of the portal frame drives the connecting block to descend, the punching rods and the punching heads are driven to descend to penetrate through the through grooves to punch a lawn, at the moment, the buffering mechanism is extruded, and punching is completed. The vibration influence of the device on the lawn is relieved, and the punching work can be smoothly carried out.
Owner:SICHUAN KUANYI CONSTRUCTION ENGINEERING CO LTD

A lawn soil loosening device for landscaping engineering

The utility model relates to the technical field of soil loosening device field, disclose a lawn soil loosening device for landscaping engineering, including protection shell, the top of protection shell is fixedly connected with water tank, one side of water tank is fixedly connected with the pump of drawing, the top of pump of drawing is fixedly connected with water pipe, the other end of water pipe is fixedly connected with the spray head, one side of spray head has the slide of connecting plate, one side of connecting plate is fixedly connected with the support plate, the top of the top of protection shell is equipped with the air pressure pump, the drive end of air pressure pump is fixedly connected with the slide rack plate, one side of spray head is fixedly connected with gear, the slide rack plate with gear is meshed connection. In the utility model, when the slide rack plate removes, will drive gear rotation through meshing effect, the slide rack plate with gear is meshed connection, the linear motion of slide rack plate can convert into the circumferential motion of gear, thereby realizes the swing function effect of spray head.
Owner:INNER MONGOLIA FUHUI CONSTR GRP CO LTD

Aerator attachment

A strap-on aerator wheel comprises two or more curved pieces having metal spikes protruding outwardly from an outside surface, a first strap end fixed to a first end of a first curved piece and a second strap end fixed to a second end of a last curved piece, a linking mechanism joining each second end of a curved piece to a first end of a next curved piece not already fixed to a first or second strap end wherein when the first and second strap ends are joined, the two or more curved pieces form a circular shape and wherein each linking mechanism is configured to be adjusted to conform to the diameter of the wheel wherein the circular shape is held onto the wheel and wherein the metal spikes are configured to aerate a lawn as the wheel is moved over the lawn.
Owner:MENTILLO JEREMY R

Guide mechanism and turf maintenance station

The utility model discloses a guiding mechanism and a turf maintenance station, the guiding mechanism comprises a first guiding assembly and / or a second guiding assembly, the first end of the first guiding assembly is installed on a shell of a punching device, the second end of the first guiding assembly abuts against a punching pipe of the punching device, the first end of the second guiding assembly is installed on the shell, and the second end of the second guiding assembly abuts against the punching pipe of the punching device. The second end of the second guide assembly abuts against the punching pipe. Through the arrangement of the first guide assembly and / or the second guide assembly, the punching pipe is guided, the force of the driving mechanism for driving the punching pipe to conduct punching is reduced, the outer side of the punching pipe is limited, when the punching pipe is bent when colliding with foreign matter in soil, certain pressure can be applied to the bent position of the punching pipe, and the punching effect is improved. The bending position of the punching pipe can be recovered to a certain degree, the influence on the punching precision of the punching device is avoided, and the service life of the punching device is prolonged.
Owner:HUNAN FEIYI INTELLIGENT TECHNOLOGY CO LTD

Grass planting restoration device for grassland ecology

The utility model discloses a grass planting restoration device for grassland ecology, and relates to the field of grassland restoration tools. The device comprises a frame, a slide rail, a push plate and a pressing part, the bottom of the frame is of an opening structure, two sets of sliding rails are symmetrically arranged on the inner side wall of the frame, the sliding rails are of bent arc structures, and the push plate is slidably installed on the arc-shaped sliding rails and is made of a bendable metal material; the pressing part is installed on one side above the push plate and used for providing driving force for the push plate to cut soil, the push plate and the sliding rail are combined, the arc-shaped sliding rail and the bendable metal push plate are combined, the guiding function of the sliding rail and the elastic deformation capacity of the push plate are utilized, friction resistance generated when soil is cut is remarkably reduced, and damaged grass blocks are made to be separated more easily; meanwhile, sawtooth cutting edges are arranged at the bottom of the frame and the edge of the push plate, a double cutting mechanism is formed, grass roots and soil can be thoroughly cut off, and the separation efficiency is improved.
Owner:LIAONING EIGHTH GEOLOGICAL BRIGADE CO LTD

A soil moisture monitoring device for turf protection

The application discloses a soil humidity monitoring device for turf protection and relates to the technical field of soil humidity monitoring. The device comprises a body mechanism, the body mechanism comprises a vehicle body, the upper surface of the vehicle body is fixedly provided with a mounting rack, the upper surface of the vehicle body is fixedly provided with a monitor main machine, and the inside of the mounting rack is provided with a processing mechanism. The processing mechanism comprises a soil leveling unit, the soil leveling unit is arranged in the inside of the mounting rack, and the soil leveling unit is used for leveling the turf soil to be monitored. The soil humidity monitoring device for turf protection is provided with the soil leveling unit, so that when the device monitors the humidity of the soil in the turf, the soil in the monitoring area is leveled, the humidity of the soil to be monitored is kept uniform, the monitoring effect of the whole is avoided from being affected by the local humidity of the turf, the soil humidity is more representative, and the measurement accuracy of the device is improved.
Owner:SINOHYDRO BUREAU 5

Mounting aids

To provide an attachment aid that enables attachment work to be performed without supporting a plurality of piercing tools with hands or the like when attaching the plurality of piercing tools to a mounting part of a clamping attachment structure in a piercing work machine. [Solution] The mounting aid 1A is an mounting aid used in a clamping mounting structure in which the magnetic mounting portions of multiple piercing tools to be pierced into the ground, such as grass, are inserted side by side between the fixed plate and clamping plate of the mounting part of the piercing machine, and then the clamping plate is fastened to the fixed plate with screws to clamp the tool. The mounting aid 1A is configured as a structure including a base plate 2 that is elongated in one direction and a magnet 3 placed on one side of the base plate 2. The mounting aid 1A is installed with the magnet 3 facing between the fixed plate and clamping plate when the mounting portions of the multiple piercing tools are inserted between the fixed plate and clamping plate, and is removed after installation is complete.
Owner:SAKAMOTO SEIKI CO LTD

Device for loosening soil on agricultural or horticultural areas

The present invention relates to a soil-working machine having rotary soil-working units. Particularly advantageous are the protection of the soil structure by way of the smallest possible soil movement, the low energy consumption compared to alternative soil loosening means, the good road transport possibilities, and a high combinability of the machine. Particularly advantageous is the soil loosening by means of rotary soil-working units, in which at least one circular-path-guiding element guides working elements on a circular path, where said working elements are connected in a rotatably mounted manner to the circular-path-guiding element. The pivot angle plays a very important role here. If the pivot angle is too small, the soil does not fall back sufficiently into its original position when the working element is lifted out. If the pivot angle is too large, the working elements can, in unfavourable situations, rotate in such a way that they do not reach their target working depth. This problem is solved in the context of the present invention in that the angle of the stop elements, connected to the working elements, to one another and the positions of the stop elements fixedly connected to the circular-path-guiding element are designed such that the rotational movement of the working elements in the circumferential bearing point is limited to a pivot angle, in particular preferably 94°.
Owner:SLS SYSTEMENTWICKLUNGEN GMBH

Turf aerator

PCT designated stageWO2025250917A1Lawn machinesControl theoryMechanical engineering
An aerator for creating a plurality of holes in a ground surface can include a linkage assembly operable to raise and lower a coring head between a raised transport position and a lowered operating position and between a first coring configuration and a second coring configuration. In the first coring configuration, and in a lowered operating position, a coring head frame of the coring head is disposed at a first angle relative to a vertical axis and at a first height relative to the ground. In the second coring configuration, and in a lowered operating position, the coring head frame is disposed at a second angle relative to the vertical axis and at a second height relative to the ground, wherein the second height is greater than the first height and the second angle is less than the first angle.
Owner:THE TORO COMPANY

Soil treatment apparatus

PendingEP4651697A1Lawn machines
The present invention relates to a soil treatment apparatus (100) for loosening soil, in particular along a working direction (B), in particular soil covered with grass, said apparatus comprising: a support device (102) and a holding device (142) which is preferably movably held thereon and on which a plurality of injection elements (144) are held; a reciprocating device (146) by means of which the injection elements (144) can be inserted into and withdrawn from the soil; and a fluid supply device (134) which is fluidically connected, directly or indirectly, to the injection elements (144) for supplying fluid, characterised in that each injection element (144) is held on the holding device (142) and can be inserted into and withdrawn from the soil individually and / or separately and / or independently of the other injection elements (144).
Owner:NOVOKRAFT AG

Low impact turf wheel and wheel cleaning system

A turf wheel having a wheel rim having an inner and outer surface, and an annular tread portion; a plurality of projections extending radially outward from the outer surface of the wheel rim, wherein each projection provides a stem, a ground contacting pad, and a ground engaging lug; and a hub. A wheel cleaning system having a frame provided by a wheeled apparatus; at least one turf wheel mounted to the frame; a turf wheel scraper assembly, the turf wheel scraper assembly providing a turf wheel scraper and an attachment mechanism, where the attachment mechanism is adapted to be mounted to the frame, and couples the turf wheel scraper to the frame.
Owner:MTD PRODUCTS INC

Outdoor power equipment vehicle adapted for performing work operations on turf surfaces

A vehicle combining the attributes of a tractor and a utility vehicle includes a three point linkage and other locations to which a plurality of attachments for performing grooming or working operations on a ground or turf surface may be couple. The vehicle includes a front mounted engine, a mid-mounted operator compartment and a rear mounted bed or box. A PTO shaft and / or a hydraulic power system of the vehicle power attachments that require power. A control system and a visual display and data entry device linked thereto are provided for allowing an authorized person to setup, store and thereafter use an operational profile for each attachment that is to be coupled to the vehicle. In a rate dependent attachment, the control system maintains the ground speed and the attachment implement in a fixed ratio. A down / up control is used to signal the start and end of an operational sequence to the control system.
Owner:THE TORO COMPANY

Machine for soil aeration

PendingEP4662992A1Lawn machines
Object of the present invention is an agricultural machine for soil aeration, described in its basic configuration (310) and in some execution variants (320, 330, 340, 350, 360) depending on some of the possible kinematic mechanisms (200) used. The basic feature is that the kinematic mechanism (200) comprises at least one pin (202) having a horizontal axis, to which a corresponding aerating tool (1; 110) is idle coupled; the kinematic mechanism (200) moves the at least one pin (202) along a predefined path that brings the aerating tool (1, 110) to a first position (202') where, subject only to the force of gravity, it grazes the ground with its tip (V), then to a subsequent position (202") in which it is driven into the ground, where it creates a fulcrum (F) that becomes a carriage with hinge-type constraint, and then to a third position (202‴) in which it is extracted from the ground again.
Owner:BALLERINI VALERIO +1

Lawn hole puncher

The utility model relates to the technical field of lawn maintenance instruments, and discloses a lawn puncher which comprises a connecting seat and a handle rod perpendicularly and fixedly connected with the connecting seat, a connecting frame is arranged on the lower side of the connecting seat, the connecting frame and the connecting seat are distributed in parallel, the two ends of the connecting frame are fixedly connected with the connecting seat through guide rods, and the handle rod is arranged on the connecting seat. A plurality of barrel cutters which are distributed at equal intervals are arranged on the connecting frame, and a lower pedal is arranged on the side face of the connecting frame; a lifting seat is arranged between the connecting seat and the connecting frame, the two ends of the lifting seat are in sliding connection with the guide rods respectively, a plurality of ejector rods which are coaxially distributed with the cylindrical cutter are arranged on the lifting seat, pressing blocks extending into the upper end of the cylindrical cutter are arranged at the lower ends of the ejector rods, and an upper pedal is arranged on the side face of the lifting seat. The utility model has the beneficial effects that the soil in the channel can be conveniently cleaned after each time of punching, and the use is more convenient.
Owner:HANGZHOU WEST LAKE WATER RESOURCES MANAGEMENT OFFICE

Grass treatment device and system

A grass treatment device comprises a traction frame 10 with a driven rear roller or wheel and a tool frame 30 with a grass treatment tool and a front roller or wheel. The grass treatment tool can be a
Owner:MTD PRODUCTS INC

Rolling type lawn perforating machine

The utility model belongs to the field of agricultural mechanical equipment, and provides a rolling type lawn perforating machine which comprises a rack, an engine, a handrail, a transmission mechanism and a perforating device, the perforating device comprises a plurality of perforating cutters, a perforating shaft and five groups of relatively independent perforating discs, and the perforating discs are in transmission connection with the perforating shaft through one-way keys. A water tank is arranged in the advancing direction of the punching device and is of a cylindrical structure, the two ends of the water tank are connected to the rack, and the engine is arranged above the water tank. The transmission mechanism comprises a belt transmission assembly and a chain type transmission assembly. The chain type transmission assembly comprises a chain, a first chain wheel coaxially connected with the belt transmission assembly, a second chain wheel coaxially connected with the punching device, a third chain wheel coaxially connected with the water tank, a first tensioning chain wheel and a second tensioning chain wheel, wherein the first tensioning chain wheel and the second tensioning chain wheel are connected with the machine frame. The utility model has the advantages of reasonable design and various counterweight measures, is favorable for improving the punching quality, is convenient to steer, is favorable for improving the working performance of equipment, and is suitable for large-scale popularization.
Owner:LIAOCHENG JADE AGRI & FORESTRY EQUIP CO LTD

Soil treatment apparatus

A soil treatment apparatus for loosening soil includes a supporting device and a holding device movably held on the supporting device. A plurality of injection elements are held on the holding device. The injection elements are insertable into and withdrawable from soil via a lifting device. A fluid supply device is in fluid connection with the injection elements for providing fluid. The supporting device includes a first supporting device portion and a second supporting device portion. The soil treatment apparatus is configured to be caused to move in a processing direction via the first supporting device portion. The holding device is held on the second supporting device portion. The first and second supporting device portions are arranged one behind the other in the processing direction and interconnected so as to be movable and in particular displaceable relative to one another in the processing direction.
Owner:NOVOKRAFT AG

Punching device and turf maintenance station

The utility model discloses a punching device and turf maintenance station, including casing, drive mechanism, pressing bar, punch pipe and transmission mechanism, transmission mechanism includes first transmission subassembly and second transmission subassembly, and first transmission subassembly and second transmission subassembly are rotated respectively and are installed in casing, and first transmission subassembly is connected with second transmission subassembly, and the output of drive mechanism is connected with the input of first transmission subassembly or second transmission subassembly, and the output of first transmission subassembly is connected with punch pipe, and the output of second transmission subassembly is connected with pressing bar, the setting of first transmission subassembly drives punch pipe to move up and down, and the soil is taken out by inserting turf, and the setting of second transmission subassembly drives pressing bar to move up and down, and the soil in punch pipe is pushed out, thereby accomplishing soil loosening, and under the cooperation of mixing mechanism, the fertilizer can enter the deep soil when loosening, promotes the soil permeability and water permeability, simple structure improves turf maintenance's work efficiency.
Owner:HUNAN FEIYI INTELLIGENT TECHNOLOGY CO LTD

Lawn trimming robot

The invention discloses a lawn trimming robot, and relates to the technical field of lawn trimming, the robot comprises a shell, a controller is arranged in the shell, a camera is arranged at the front end of the shell, and moving wheels are arranged on both sides of the bottom of the shell; a trimming structure used for trimming a lawn and a punching structure used for punching the trimmed lawn are sequentially arranged at the bottom of the shell from front to back. When the blade of the trimming structure rotates to trim a lawn, the bristles of the cleaning structure can synchronously rotate, enter the interior through the top opening in the protective shell, brush and sweep grass clippings on the blade, and discharge the grass clippings out of the protective shell through the bottom opening. The real-time cleaning mechanism effectively prevents grass clippings from being accumulated on the blade, the problems that the trimming effect is reduced and the abrasion of the blade is accelerated due to winding of the grass clippings are solved, the continuity and consistency of the trimming effect are ensured, the service life of the blade is prolonged, and the maintenance cost is reduced.
Owner:ANHUI POLYTECHNIC UNIV MECHANICAL & ELECTRICAL COLLEGE