CN2041212U - Dual-purpose screening machine for chinese chestnut - Google Patents

Abstract

The utility model discloses a novel energy-saving dual-purpose screening machine for Chinese chestnut, and belongs to the agricultural machine field, and the dual-purpose screening machine for Chinese chestnut is mainly composed of an electric motor, a handle, a transmission mechanism, a roller, a Chinese chestnut scraping plate, a feed hopper, a collection box, a discharge hopper and a bracket. The dual-purpose screening machine for Chinese chestnut is characterized in that the transmission mechanism is provided with the double-transcending mechanism which is composed of an electric and hand ratchet wheels and ratchet wheel sleeves, wherein, the double-transcending mechanism can realize the rotation of the roller in an electric and a hand mode. The double-transcending mechanism and main shafts which are supported on two centripetal spherical bearings and are connected with the roller by a shaft sleeve, a spring and a connecting bracket are connected with the roller, the shaft center of the main shaft and the gyration centre of the roller are consistent during work. The dual-purpose screening machine for Chinese chestnut can electrically screen and can also manually screen. The utility model has the advantages of high precision, high efficiency, labour saving, small size, safe and convenient operation and simple repair, and is suitable for large-size, middle-size and small-size Chinese chestnut purchasing stations to use.

Description

Dual-purpose screening machine for Chinese chestnut

The utility model belongs to agricultural mechanical field.

Known have sifting bed formula and a drum-type Chinese chestnut screening machine.The sifting bed formula is driven the sifting bed level, teetertotters and screen by toggle by power source, and its shortcoming is that screening effeciency is low, low precision, noise is big, wasted work is many.Known drum-type screening machine is used for Chinese chestnut screening in enormous quantities, it is constructed as follows: cylinder divides two separately, the undersized Chinese chestnut of first trommelling, large-sized Chinese chestnut enters second cylinder from end discharge by lifting device along cylinder and carries out the screening of large-size, large-sized Chinese chestnut is discharged from an end along second cylinder, garbled Chinese chestnut enters corresponding collecting box separately, feed hopper and power source are at the same end of cylinder, cylinder is from then on along downward-sloping, cylinder is placed on the support by locating wheel, one all chains are arranged on the garden outside cylinder one end, and motor drives a sprocket wheel after speed change, sprocket wheel cooperates the cylinder work that drives with chain.Its weak point is that the kind of drive of cylinder is cooperating by the chain on the outer garden of cylinder one end and sprocket wheel, occurring the cylinder two ends during use rolls asynchronous, tube produces distortion, make some connect fractures such as gusset, the long more fracture of tube is serious more, and frictional force, noise are all big, can only be electronic, wasted work is many.

The utility model will be used to roughly select for middle-size and small-size Chinese chestnut purchasing station provides the dual-purpose screening machine of a kind of novel energy-saving high-efficiency Chinese chestnut, satisfy the foreign exchange earning requirement to reduce big screening machine workload.

The utility model is constructed as follows: mainly be made up of the coupling part of motor, handle, transmission mechanism, cylinder, main shaft, main shaft and cylinder, chestnut-wiping plate, feed hopper, collecting box, discharge bucket, framework, support, fastening and locating element.In transmission mechanism by one by electronic ratchet sleeve, ratchet, manually ratchet sleeve form realize two one-way elements electronic, manual revolving cylinder.When electronic, manually inoperative, otherwise, electronic inoperative when manual, realized electronic, hand rotation cylinder.Electronic ratchet sleeve, ratchet, manual ratchet sleeve are contained on the same main shaft, main shaft is contained in and chassis base fastening two entad in the spherical bearing, the main shaft overhanging end connects with cylinder by axle sleeve, spring, hitch, the spindle axis and the cylinder centre of gyration are arranged on the same axis, again because two entad uses of spherical bearing and spring, realized when spindle axis is worked with the cylinder centre of gyration consistent, and keep running steadily, noise is little.

The utility model advantage:,, satisfy the requirement of quickening outlet to reduce big refiner workload because the utility model is to be used to roughly select for middle-size and small-size Chinese chestnut purchasing station provides the dual-purpose screening machine of a kind of novel Chinese chestnut.Experiment the utility model has reached selected requirement, thereby has finished certain selected workload, has quickened foreign exchange earning.The utility model is because the two one-way elements of use can be realized electronic, manual screening, even but not have electricity manual screening.Its screening precision height, efficient height (embodiment per hour selects a ton), volume is little, simple in structure, maintenance safe convenient, noise is low, laborsaving, power saving (the embodiment motor power (output) is 370 watts), price are low.

Embodiment: the utility model embodiment is referring to accompanying drawing 1(a) and accompanying drawing 1(b), these two figure are schematic diagrames, accompanying drawing 1(a) be front view, accompanying drawing 1(b) be vertical view.It is mainly by power switch (1), handle (2), motor (3), worm-and-wheel gear (4), manual ratchet sleeve (5), the electronic ratchet sleeve of ratchet (6) (7), two spherical bearings (8) entad, main shaft (9), inner hole section is that (axle sleeve inner hole section shape can be done quadrate to square axle sleeve (10), rectangle, half garden shape is multiple), hitch (11), three cylinder circles (12), spring (13), the reinforcement (14) that is parallel to gyroaxis on the six roots of sensation cylinder outer wall, bore dia is the screen cloth (15) of 22 millimeters of φ, bore dia is the screen cloth (16) of 18 millimeters of φ, two rubber chestnut-wiping plates (17), cylinder door (18), feed hopper (19), the framework of adjustable rollers gradient (20) (can realize zero to Lu Du variation), two rubber rolls (21), the alignment pin of framework (22) (also the available adjustment screw is regulated the gradient of framework), support (23), three collecting boxs (24) (the utility model is made wallboard with jaqan on the true qualities five-ply board), three discharge buckets (25).

Ratchet connects with main shaft with key, electronic and manual ratchet sleeve is arranged on the ratchet axis direction both sides and links by spherical bearing and main shaft, main shaft support with chassis base fastening two entad in the spherical bearing, main shaft passes the axle sleeve that interior square sectional hole is arranged on the hitch, the external part outer casing spring is also used packing ring, nut location, hitch and cylinder are fastening with screw, and cylinder other end below has two rubber wheels to support.This by main shaft, entad the rotary system vibration formed of spherical bearing, axle sleeve hitch, spring, cylinder and rubber wheel reduces, turn round steadily, friction reduces, the noise reduction, be consistent easily when centre of the drum and spindle axis revolution, stress is improved can reduce damage parts, therefore security reliability improves, and wasted work also reduces.Motor makes cylinder rotate down at 15 rev/mins or 10 rev/mins by the belt wheel adjustable speed.Transmission is as follows: motor drives worm and gear by belt transmission and rotates, and worm-wheel shaft goes out end the second month in a season has a sprocket wheel to drive electronic ratchet sleeve by chain; Handle axis be placed on the fastening bearing block of chassis base in, on an end that stretches out, sprocket wheel is arranged, drive manual ratchet sleeve by chain, ratchet sleeve cooperates with ratchet and drives main shaft and cylinder rotates.Motor, worm-and-wheel gear, Handle axis bearing, the entad spherical bearing that both sides on the same axis of main shaft of two one-way elements are housed, axle sleeve hitch, cylinder, feed hopper, chestnut-wiping plate, two rubber wheels all are arranged in samely realizes zero to the framework of Lu Du adjustable tilt angle, locate with alignment pin and support at framework one end that feed hopper is arranged, the framework other end connects with support with hinges.Feed hopper, power drive mechanism are arranged in the two ends on the cylinder axis direction, and the cylinder axis of rotation can tilt to motor direction from feed hopper, this arrangement rationally, be convenient to maintenance and safe operation.

The present embodiment working condition is as follows: work as electronic mode, drive the cylinder revolution by motor, belt, worm and gear, sprocket wheel, chain, electronic ratchet sleeve, ratchet, main shaft, axle sleeve hitch after connecting power supply, Chinese chestnut imports separately collecting box respectively and puts away from discharge bucket after feed hopper is by small size, large-size, three kinds of screenings of large scale.The Chinese chestnut that the chestnut-wiping plate of cylinder outside will be stayed in the mesh is wiped the removing plug-hole off.As when not having electric hand to move, but winding by hand fixed handle beam warp sprocket wheel, chain, manually ratchet sleeve, ratchet, main shaft, axle sleeve hitch drive cylinder revolution work.The present embodiment screen cloth is selected aluminium sheet manufacturing (also available plastics or nylon sheet) for use.

Claims (3)

1, a kind of Chinese chestnut screening machine that belongs to agricultural mechanical field mainly is made up of motor, transmission mechanism, cylinder, chestnut-wiping plate, collecting box, feed hopper, discharge bucket, support, it is characterized in that in the transmission mechanism by one by electronic ratchet sleeve, ratchet, manually electronic, the manual revolving cylinder of realizing of forming of ratchet sleeve two one-way elements be supported on two entad the main shaft on the spherical bearing by axle sleeve, spring, hitch and cylinder connection make spindle axis, consistent connecting mode when the cylinder centre of gyration is worked.

2, device as claimed in claim 1, feature are that entad spherical bearing, axle sleeve hitch, cylinder, feed hopper, chestnut-wiping plate, two rubber wheels that the both sides on the main-shaft axis direction that is furnished with motor, worm-and-wheel gear, Handle axis bearing above, two one-way elements are housed are arranged can realize that zero to Lu Du regulates the framework at angle of inclination.

3, device as claimed in claim 1 or 2, feature are to have feed hopper, a power drive mechanism to be arranged in two ends on the cylinder axis direction, the arrangement that the cylinder axis of rotation can tilt to motor direction from feed hopper.

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