CN102853034A - Bearing type transmission wheel - Google Patents

Abstract

The invention discloses a bearing type transmission wheel and aims to provide a transmission wheel which is simple in structure, convenient to maintain, durable in use, zero in relative friction in operation and has replaceable single tooth. According to the key points of the technical scheme, the whole transmission wheel is made in a combined type, at least 1/2 of teeth are replaced by a rotating wheel which consists of a bearing and an outer sleeve and are arranged on a small shaft, the other 1/2 of teeth can be engaged and disengaged without an error during meshed operation of a master transmission wheel and a slave transmission wheel in the structure and shape, namely the transmission wheel can be in a shape of a plate or an arc opening fork or an acute angle, an obtuse angle and a right-angle opening, the teeth of a large transmission wheel are arranged on a plurality of upright posts which can slide and lift in a certain size inwards and outwards at the periphery of the outer edge of the transmission wheel in equal distance, so that the occupied contours are increased from engagement to disengagement due to the lifting action of the upright posts during operation, and therefore, the transmission efficiency is invariable.

Description

A kind of bearing type drive wheel

Technical field

The present invention relates to the transmission part in the machine, more definite more particularly is two gears or two engagement driving to cog in the routine.

Background technique

Gear transmission is one of kind of drive the most frequently used in the machine in modern age.This is because it can keep a constant velocity ratio, rotating speed in namely deciding separately at one time according to the number of teeth on each gear of principal and subordinate, be that driving wheel is deceleration less than follower, otherwise be speedup, and the transmitted power scope is large, littlely can both be competent to hundreds thousand of kilowatts to clock and watch are large, and transmission efficiency is high, unlike belt transmission, more or less has skidding and reduced transmission efficiency.

Be divided into outer gearing transmission, interior engagement driving and gear rack transmission according to engagement system; Can be divided into cylindrical spur gear, cylindric spiral gear, herringbone gear and spur bevel gear, spiral gear and tooth bar etc. according to the form of tooth and the mutual alignment of principal and subordinate's two Gear axis.

In the prior art, the existing deficiency one of gear transmission is no matter any gear and any kind of drive are all kept away unavoidable relatively friction, and the adverse consequences that friction produces is wearing and tearing, generate heat and noise occurs and stationarity is relatively poor; The 2nd, broken teeth appears easily, gently then must repair, heavy then integral body is scrapped; The 3rd, in order to alleviate the friction charging-up lubricant oil of being sure to, the outfit cause of Here it is gear-box, perhaps both bothered spending large by oil pump feed, its outside dimension just can't change again behind the gear forming in addition, and the centre distance of principal and subordinate's two gears does not have the leeway of adjustment etc. during installation.

Summary of the invention

The present invention is for solving above-mentioned deficiency, aims to provide a kind of simple in structurely, easy to maintenance, durable in use, and without relative friction is arranged, single tooth is replaceable in the running, and the adjustable drive wheel of principal and subordinate's two drive wheel centre distance is achieved by the following technical solutions in case of necessity.

Whole drive wheel is made combined type, and namely each tooth is dismantled and assembled, and tooth is a runner or claims rotating disk, but the relative friction of the two has been eliminated in principal and subordinate's two drive wheels its runner or rotating disk rotation in meshing process in the running thus.Its runner both can be that a circle is installed on the axle, also can be that a bearing or bearing are encased be installed on the axle, encased one is for more firm, the 2nd, can make various shapes and suitable different technological requirement (cylindrical gears and cone gear etc.), in order to save cost, the tooth of two phase fits need only one of them be runner, another is a plate leaf or recessed arcuation shape wooden fork, also can do acutangulate, pure angle or right angle wooden fork, on-streamly being as the criterion with the mutual fit of runner (engagement) and disengagement.

Several runners with equidistant installation on the outer rim contour of same drive wheel both can be to fixedly mount namely in position rotation, also it can be installed in one can inside and outside lifting and translocating the i.e. column of slippage certain size top up and down, the lifting of column (far is liter apart from the drive wheel center, otherwise for falling) principle is that hypomere is equipped with spring or extension spring therein, first half in the engagement walk the journey spring progressively compressed or extension spring be elongated, later halfly walk that the journey spring progressively rises or short resetting received in extension spring.First half is walked journey and can be formed resistance namely to mesh the center pillar formed back pressure that descends be backstepping, the later half journey of walking can form power, namely throwing off the front column formed back pressure that rises is forwards, the two equates resistance and power to be cancelled and by the change nothing is arranged, if have two pairs of teeth of principal and subordinate at least among engagement, be last to before surmounting the relative center line of two drive wheels, rear a pair of initial engagement, thus make because rising and falling the just no longer existence of formed resistance.

The tooth of selecting runner to replace gear has reduced the tooth number in each transmission wheel rim week much larger than tooth owing to its diameter, when adopting rise-fall type to install since engagement walk Cheng Bianchang and further reduce, no matter the size of drive wheel, at least several at most tens just can be competent at, for column left and right sides off normal and roller is installed in its both sides not in lifting, column in rise and fall just the rotation of both sides roller eliminated the two relative friction for the original position rotation, perhaps roller is installed on the column and with roller and places slideway, also can obtain same effect.

Runner equates with plate leaf or various the two quantity of shape wooden fork, can only be the former more than the latter be that runner and runner can be intermeshing or claim fit if differ, and plate leaf and plate leaf or must not mesh with other every shape wooden forks, otherwise will because of can not from then produce relatively friction.Both the former with the latter can be installed in respectively on each drive wheel, also can alternately install at same drive wheel, can intermeshingly be as the criterion with disengagement with the former and the latter in the running.

Be the two Strike note that occurs when meeting in initial engagement in order to alleviate principal and subordinate's two gears (such as runner and arc wooden fork), and at the plane of arc wooden fork pad dress one deck rubber peel or analog such as cloth etc., reduce noise and be as the criterion reaching.

In sum, the technical solution adopted in the present invention is to be that the tooth in its edge week of driving gear of the prior art only lacks 1/2nd and replaced by runners that can the original position rotation with routine, in addition 1/2nd wooden fork mouths by plate leaf or respective shapes are replaced, larger drive wheel can with several runners with equidistant be installed in each root can be automatically inside and outside on the column of lifting certain size.By the encased runner that forms of bearing as long as change the shape of overcoat, the conical surface profile of tooth transmission of intersecting with outer gearing transmission or diaxon in just can adapting to and gear rack transmission etc. by technological requirement.

Its beneficial effect one of the present invention is because the relative friction of having eliminated in engagement is not only durable in use but also need not charging-up lubricant oil thus, when selecting bearing to make runner, need only use two-sided bearing with dust cover to add in advance oiling agent before dispatching from the factory, save thus the comparatively heavy gear-box or oil-path lubricating device and the oil plant that are used for depositing gear oil; The 2nd and since principal and subordinate's two gears from initial be engaged to throw off only lack the overall process one of them can from then the smooth running noise free; The 3rd, do not reduce because having had gear-box and a plurality of fixing tooth manufacture cost; The 4th, owing to changeable-teeth keeps in repair more convenient; The 5th, adaptability is wider owing to can install that inside and outside slippage realizes the column of lifting additional, and namely its centre distance of drive wheel can be regulated within the specific limits according to technological requirement, also has in addition the lightweight advantage such as haul of being convenient to.

Description of drawings

Fig. 1 to Fig. 4 is respectively that routine is cylindrical spur gear of the prior art, cylindric spiral gear, spur bevel gear and wheel and rack engagement driving schematic representation;

Fig. 5 is the external gear pump structural representation (A is two Gear center distances, and d1 and d2 are respectively intersection line and pitch diameter) in the traditional method;

Fig. 6 be one of the present invention for one of rotary-type drive wheel for the plate vane-type drive wheel each other beyond the intermeshing schematic representation of mesh form;

It is that arc wooden fork formula drive wheel is each other with the intermeshing schematic representation of interior engagement system for one of rotary-type drive wheel that Fig. 7 is one;

Fig. 8 be one for runner is installed in can the column of inside and outside slippage lifting on, one for the arc wooden fork is connected to can the column of inside and outside slippage lifting on, the two each other beyond the intermeshing schematic representation of mesh form.

Embodiment

Be described further below in conjunction with accompanying drawing:

With reference to Fig. 6, on-stream its runner 1 of the rotary-type drive wheel of left side plate vane-type drive wheel and the right is that one of active is passive with 2 one on plate leaf, one is dextrorotation for left-handed one when mutually being close to, the two simultaneously the outside upwards the inside downwards, the runner 1 that wherein reclines with the plate leaf turns clockwise from transferring to again in the running counterclockwise following drive wheel.

With reference to Fig. 7, the inside one little one that rotary-type drive wheel is installed in arc wooden fork formula drive wheel greatly in engagement driving, large be initiatively littlely is speedup for driven, otherwise is deceleration.

With reference to Fig. 8, several runners 1 and several arc wooden forks 3 are installed in respectively on the column 4 in each transmission wheel rim week, the top, lower end of every root post is equipped with spring 5, according to up and down its left side of its column of sense of rotation or the right roller 6 is installed and is used for preventing the off normal of on-stream column and alleviating friction, its spring is also corresponding to be compressed to rising to initial engagement to throwing off fully in the running.

Claims (3)

1. bearing type drive wheel, by driving wheel and the intermeshing running of follower, it is characterized in that drive wheel is that combined type is that each tooth is dismantled and assembled, the tooth in its edge week of driving gear only lacks 1/2nd runners by several energy original position rotations and is formed, and is replaced with intermeshing in addition 1/2nd wooden fork mouths by plate leaf or respective shapes of runner.

2. a kind of bearing type drive wheel according to claim 1, it is characterized in that be used for replacing tooth runner and with the wooden fork mouth of the various shapes of on-stream and the mutual fit of runner be installed in respectively each root can be automatically inside and outside the column of lifting certain size.

3. a kind of bearing type drive wheel according to claim 1 and 2 is characterized by the left side of column and the right and roller is installed and the next spring or extension spring is installed at it.

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