CN2501301Y

CN2501301Y - Follow type electric rolling speed reducer for greenhouse

Info

Publication number: CN2501301Y
Application number: CN01261730U
Authority: CN
Inventors: 施立平
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-09-20
Filing date: 2001-09-20
Publication date: 2002-07-24
Anticipated expiration: 2011-09-20

Abstract

The utility model discloses a traveling type electric roller shutter reducer for a plastic greenhouse, which belongs to a technology field of agriculture automation equipments. The inventing goal is to provide the electric roller shutter reducer which has the advantages of small volume, light weight, convenient and safe operation and long service life. A worm and worm gear deceleration transmission mechanism which is supported by a bearing and a shaft sleeve is arranged in a machine box which consists of a main shell (14) and an accessory shell (4), and couplings (17) are separately arranged on two ends of an output shaft of the worm gear (13), and a machine base with fixing hole, which can be fixedly connected to a support frame, is arranged on one side of the machine box. The utility model is characterized in that a gear transmission mechanism which has at least two grades are arranged inside the machine box, and thereof terminal grade low-speed gear (49) is arranged on one side of a worm shaft (35), which is coaxially connected to the worm shaft to form a transmission system, and a big pulley (24) is arranged on an end part of a gear shaft (33). The utility model has the advantages of small volume, large mechanical strength and long service life, which is convenient for generalized and popularized using and can be used in various plastic greenhouses.

Description

Plastic tunnel is with line electric rolling reductor

The utility model discloses a kind ofly, belong to the agricultural automation equipment technical field with line greenhouse plastic tunnel electric rolling reductor.

The insulation of traditional greenhouse plastic tunnel covers that the many employings of curtain are manually drawn, the thatch putting curtain with mat, and the big efficient of labour intensity is low, has adopted the electric rolling machine to replace that manpower draws, the thatch putting curtain.

At present; installing type electric rolling machine before the canopy; basically all belong to retinue installation method; divide three kinds again by the structure difference of reductor: first kind is pure gear type structure; in order to be adapted to big reduction of speed ratio, level has adopted and has pulled the hoist crane machine core structure at a high speed, has satisfied the needs of reduction of speed significantly; for the needs slow speed turbine stage of exporting high pulling torque and satisfying big carrying has adopted big modulus roller gear, for shut down midway and when having a power failure the demand of braking adopted braking of friction format or castellated braking etc.The major defect of this structure is that the chain block structure is not suitable at a high speed, and the life-span of reductor is fallen greatly; Big modulus causes the reductor volume big, and heaviness is unfavorable for installing; Easily freeze on the winter brake, usually cause the malfunctioning and poor stability of auto-lock function.

Second kind is that the chain block structure is changed to have the worm and wormwheel structure of self-locking property, finishes big reduction of speed ratio and realizes auto-lock function.Though designs simplification has been finished the needs of two kinds of functions in theory, understand that with use certificate the worm and wormwheel structure can not be used for the transmission of high-speed overload in fact by experiment, make the high speed worm gear wear and tear fast, reduced the service life of this type.

The third is the second-stage worm worm gear arrangement.This structural advantages is a reduction of speed than big, satisfied draw, the rate request of thatch putting curtain, self-locking property is good, can shut down and not roll down in any position.Simple in structure, in light weight, cost is low, be convenient to install.The shortcoming of this type maximum is exactly that the easy premature wear of high speed level worm gear wears no resistance, the life-span is low.

Goal of the invention of the present utility model provides the greenhouse plastic tunnel of little in light weight, easy and safe to operate, the long service life of a kind of volume with line electric rolling reductor.

Technical characterictic of the present utility model is that the first order has adopted belt transmission, motor and speed reducer is separated, install and adjust with convenient, simultaneously except that finishing the reduction of speed function, also play soft start and overload back belt creep, prevent the electromotor stall and overcurrent is ruined the effect of machine.The second level, the third level have been adopted double geared reducer structure, utilize mainly that the gear drive high speed is good, stable working, mill patience be good, overcome other type at a high speed level wear no resistance the shortcoming that the life-span is short.The fourth stage has adopted the transmission of big modulus worm and gear, has mainly utilized the good self-locking property and the characteristic of big reduction of speed than big bearing capacity of worm and gear.Thereby realized the good braking function of complete machine, can make complete machine and cover curtain with mat to rest on any position, overcome the shortcoming of other type poor stop.

Below specifically introduce structure of the present utility model: a kind of plastic tunnel is with line electric rolling reductor, at main casing, support installation worm and wormwheel reduction gearing mechanism by axle sleeve in the cabinet that subshell is formed, shaft coupling respectively is equipped with at the output shaft two ends of worm gear, one side of cabinet is provided with the support of the band fixing hole that can be connected and fixed with bracing frame, it is characterized in that having installed in the cabinet secondary gear transmission speed reducer structure at least, its final stage gear is installed in a side and the coaxial formation power train that links to each other of worm shaft of worm shaft, and big belt pulley is equipped with in the power input shaft end of first order gear drive reducing gear.

The course of work of the present utility model is the motor driven big belt pulley, through the second gear reduction unit structure slow down, power passes to curtain rolling shaft by the shaft coupling of worm and wormwheel reduction gearing mechanism, curtain rolling shaft is rolled when covering curtain with mat roller shutter machine band and bracing frame along the same moved further of canopy face.

Characteristics of the present utility model are as follows:

The first order adopts belt transmission and reduction of speed, and belt, belt pulley are also being undertaken soft start and overload back skid in case electromotor stall and effect that overcurrent is burnt except that finishing the reduction of speed function.The second level and the third level are the gear reductions of combining, and this combination has made full use of that high speed performance is good, stable working, wear-resisting advantage such as reliable.The main task of the fourth stage is under an amount of reduction of speed prerequisite, for guaranteeing the required mechanical strength of high pulling torque, has adopted the transmission of big modulus worm and gear, so both improved efficiency of transmission, ensured mechanical strength again, utilized its good self-locking performance, glided voluntarily after preventing to cover with mat curtain and rolling.

Major advantage of the present utility model: because adopted secondary gear transmission ways of deceleration, volume is little, and the big life-span of mechanical strength is long, thereby has reduced total input, is convenient to popularize use, can be applied in the various greenhouses plastic tunnel.Simultaneously because little in light weight, the stable drive of its volume, safe and reliable, do not have impact, noiseless, comparatively ideal bearing capacity is arranged, complete machine transmission stability and reliability are improved greatly.

Figure of description 1 is master of the present utility model (a cuing open) view.

Figure of description 2 is of the present utility model bowing (cuing open) views.

Figure of description 3 is structure master's (cuing open) views that secondary gear transmission speed reducer structure adopts column gear transmission.

Figure of description 4 is (cuing open) views of bowing of Fig. 3.

Embodiment of the present utility model is referring to accompanying drawing 1,2, a kind of plastic tunnel is with line electric rolling reductor, in main casing (14), in the cabinet that subshell (4) is formed, by bearing, axle sleeve supports installs the worm and wormwheel reduction gearing mechanism, shaft coupling (17) respectively is equipped with at the output shaft two ends of worm gear (13), one side of cabinet is provided with the support of the band fixing hole that can be connected and fixed with bracing frame, it is characterized in that having installed in the cabinet secondary gear transmission speed reducer structure at least, its final stage low-speed gear (49) is installed in a side and the coaxial formation power train that links to each other of worm shaft of worm shaft (35), and big belt pulley (24) is equipped with in power input gear axle (33) end of first order gear drive reducing gear.

Among the embodiment of the present utility model, secondary gear transmission speed reducer structure can adopt column gear transmission, it is good adopting conical gear, the second level to adopt the column gear transmission structure with the first order, its operation principle: the belt pulley of electromotor self passes to big belt pulley (24) by V belt with rotation, finishes first order retarded motion; Big belt pulley fuses with small coning gear shaft (33) by key (28), plain cushion (27), groove mother (26), hatch lock (25), small coning gear shaft also can be rotated flexibly by the assembly supporting that bearing holder (housing, cover) (21), bearing spacer (22), side pressure lid (23), bearing (30), oil sealing (29), side pressure cap packing (34) and securing member are formed, drive bevel gear wheel (39) simultaneously and rotate, finish second level retarded motion; Bevel gear wheel is connected with gear shaft (37) by key (36), and the rotation of gear shaft drives the low-speed gear (49) that is meshed with it and rotates, and finishes third level retarded motion; Low-speed gear is fixing by cover (48) on key (47), the worm screw and worm shaft (35), it rotates the rotation of the worm gear (13) that drives worm shaft and be meshed with worm screw, finishing the fourth stage slows down, worm gear links by key (7) and the output shaft assembly of being made up of output shaft (8), key (2), bolt (5) shaft coupling, and the low-speed big of exporting the most at last by shaft coupling passes to the purpose that curtain rolling shaft realizes rolling up the thatch putting curtain.

Custom when rotating reductor manually when having a power failure in order to take into full account changes transmission direction by conical gear, and big belt pulley is arranged on the right, and concrete structure is seen Fig. 2.Manually during the thatch putting curtain, the people stands in covering with mat on the curtain and rotating big belt pulley with the right hand, the so promptly safe custom that meets people's right-hand operated again of having launched.Can will cover curtain in order to have a power failure with mat puts down smoothly and (rolls when covering curtain with mat and do not consider, because green house can not rolled in several days, but can not cover curtain with mat, otherwise temperature of shed just reduces the several years because of putting next hour evening because of having a power failure not put down, time has been grown just by causing freezing vegetables, lose very big), an end pass-out cabinet of gear shaft (37), the side of having, end tenon, put down and cover curtain with mat in order to rotate this axle with instrument, at thatch putting curtain initial stage during use, because the torsion that need provide is big, it is more laborsaving therefore to rotate big belt pulley; After putting down a circle, owing to cover curtain has had downward rolling under the effect of deadweight component with mat, at this moment use rotation idler gear shaft efficiency instead and will improve greatly, shortened and put down the time of covering curtain with mat, be beneficial to booth thermal insulation.

Another one embodiment of the present utility model sees accompanying drawing 3,4, it is the structure that secondary gear transmission speed reducer structure adopts column gear transmission, can will cover curtain with mat in order to have a power failure puts down smoothly, one end pass-out cabinet of the roller gear axle of its secondary gear transmission speed reducer structure, the end is the side's of having tenon respectively, puts down and covers curtain with mat in order to rotate this axle with instrument.At thatch putting curtain initial stage during use, because the torsion that need provide is big, it is more laborsaving therefore to rotate first axial ratio; After putting down a circle,, at this moment use rotation idler gear shaft efficiency instead and will improve greatly owing to cover curtain has had downward rolling under the effect of deadweight component with mat.

Claims

1, a kind of plastic tunnel is with line electric rolling reductor, in main casing (14), in the cabinet that subshell (4) is formed, by bearing, axle sleeve supports installs the worm and wormwheel reduction gearing mechanism, shaft coupling (17) respectively is equipped with at the output shaft two ends of worm gear (13), one side of cabinet is provided with the support of the band fixing hole that can be connected and fixed with bracing frame, it is characterized in that having installed in the cabinet secondary gear transmission speed reducer structure at least, its final stage low-speed gear (49) is installed in a side and the coaxial formation power train that links to each other of worm shaft of worm shaft (35), and big belt pulley (24) is equipped with in power input gear axle (33) end of first order gear drive reducing gear.

2, according to the described plastic tunnel of claim 1 with line electric rolling reductor, it is characterized in that secondary gear transmission speed reducer structure can adopt column gear transmission, it is good adopting conical gear, the second level to adopt the column gear transmission structure with the first order.

3, according to the described plastic tunnel of claim 1 with line electric rolling reductor, it is characterized in that an end pass-out cabinet of the gear shaft (37) of secondary gear transmission speed reducer structure, the side of having, end tenon.