CN202349099U

CN202349099U - A bearing type drive wheel

Info

Publication number: CN202349099U
Application number: CN2011202255026U
Authority: CN
Inventors: 刘运武
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-06-30
Filing date: 2011-06-30
Publication date: 2012-07-25
Anticipated expiration: 2021-06-30

Abstract

The utility model discloses a bearing type drive wheel, which aims at providing a drive wheel that has simple structure, convenient maintenance, duration of wearing, no relative friction in the process of running and single replaceable tooth. The main points of technology scheme lie in as following: an integral drive wheel is made as a combined type, at least a half of the teeth are replaced by a rotating wheel that is composed of the bearing and a sleeve and are mounted on a small shaft; the structure and shape of the other half take it as a criterion that the drive wheel and the driven wheel can realize correct engage and disengage in the process of engage with each other, namely, it can be a sheet or a curved surface opening branch or shapes like acute angle, obtuse angle and right angle opening. A bigger drive wheel is mounted on a plurality of vertical rods that can lift or slide a certain length inwardly and outwardly on an outer rim of the drive wheel at equal intervalls based on technology requirements, thus the occupied contours are increased in the operation process from engage to disengage because of the effect of the vertical rods lifting and sliding, thus transmission efficiency is kept while reducing teeth.

Description

A kind of bearing type drive wheel

Technical field

The utility model relates to the transmission part in the machine, more definitely more particularly is two gears or two above gear meshing transmissions 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; Promptly decide interior at one time separately rotating speed according to the number of teeth on each gear of principal and subordinate, promptly driving wheel is deceleration less than follower, otherwise is speedup; And the transmitted power scope is big; For a short time, can both be competent to hundreds thousand of kilowatts, and transmission efficiency is high, more or less has skidding and has reduced transmission efficiency unlike the belt transmission that kind to clock and watch are big.

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 friction relatively, the adverse consequences that friction is produced is wearing and tearing, generate heat and noise appears and stationarity 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 lubricant oil of must annotating; The outfit cause of Here it is gear-box; Perhaps both bothered spending big 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 utility model aims to provide a kind of simple in structure, easy to maintenance for solving above-mentioned deficiency; Durable in use, do not have in the running relative friction is arranged, single tooth is replaceable; The whole drive wheel of principal and subordinate's two drive wheel adjustable center distance adopts following technological scheme to be achieved in case of necessity.

Whole drive wheel is made combined type, and promptly 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 different shape and suitable different processes requirement (cylindrical gears and cone gear etc.), in order to save cost; The tooth of two phase fits need only one of them be a runner; Another is a plate leaf or recessed arcuation shape wooden fork mouth, also can do acutangulate, obtuse angle or right angle wooden fork, on-streamly being as the criterion with 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 promptly rotation in position; Also can with its be installed in one can inside and outside lifting and translocating the i.e. column of slippage certain size top up and down; The up-down 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, preceding in the engagement walks partly that the journey spring progressively is compressed or extension spring is elongated, and later halfly walks that the journey spring progressively rises or short resetting received in extension spring.Before partly walk journey and can form resistance promptly to mesh the center pillar formed back pressure that descends be backstepping; The later half journey of walking can form power, and promptly throwing off the front column formed back pressure that rises is forwards, and the two equates resistance and power to be cancelled and do not have by having to become; 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, a pair of initial engagement in back, thus make because of rising and falling the just no longer existence of formed resistance.

The tooth of selecting for use 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; Several at least at most tens just can be competent at, for column left and right sides off normal and roller is installed in its left and right sides not in up-down, and at its return after section is equipped with spring or extension spring and is used to descend down.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 the two quantity of different shape wooden fork; If differ can only be the former more than the latter be that runner and runner can be meshing with each other or claim fit; And plate leaf and plate leaf or must not mesh with other each item shape wooden forks, otherwise will because of can not from then produce friction relatively.Both can the former with the latter be installed in respectively on each drive wheel, also can on same drive wheel, replace installations, and can be meshing with each other and disengagement is as the criterion with the former and the latter in turning round.

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

In sum; The technological scheme that the utility model adopted is to be that to change combined type into be that each tooth is dismantled and assembled to integrated type driving gear of the prior art with routine; Tooth at least two/one in its edge week is replaced by the runner of ability original position rotation; Replaces with intermeshing in addition 1/2nd the wooden fork mouths of runner by plate leaf or respective shapes, bigger drive wheel can with several runners and in fitting commentaries on classics with the wooden fork mouth of the mutual fit of runner with equidistant be installed in respectively each root can be automatically inside and outside on the column of up-down certain size.By the encased runner of forming of bearing as long as change the shape of overcoat, 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 utility model is owing to eliminated relative the friction not only durable in use but also lubricant oil of need not annotating thus in engagement; When selecting for use bearing to make runner, need only use the two-sided bearing that has dust cover before dispatching from the factory, to add oiling agent in advance, save the comparatively heavy gear-box or an oil-path lubricating device and the oil plant that are used to deposit gear oil thus; The 2nd and since principal and subordinate's two gears from initial be engaged to throw off the overall process at least one of them can from then the steady noise free of running; The 3rd, do not reduce because of 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 that goes up and down additional, and promptly its centre distance of drive wheel can be regulated according to technological requirement within the specific limits, also has the advantage such as haul of being convenient in light weight in addition.

Description of drawings

Fig. 1 to Fig. 3 is respectively that routine is cylindrical spur gear of the prior art, cylindric spiral gear and spur bevel gear engagement driving schematic representation;

Fig. 4 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. 5 be one of the utility model for one of rotary-type drive wheel for the plate vane-type drive wheel each other beyond the mesh form schematic representation that is meshing with each other;

Fig. 6 be one for one of rotary-type drive wheel for arc wooden fork formula drive wheel each other with the interior engagement system schematic representation that is meshing with each other;

Fig. 7 is one, and one for being connected the arc wooden fork on the column that can inside and outside slippage goes up and down in order runner being installed on the column that can inside and outside slippage goes up and down, the two each other beyond the mesh form schematic representation that is meshing with each other.

Embodiment

Do further explanation below in conjunction with accompanying drawing:

With reference to Fig. 5; 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 being close to each other; 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 following drive wheel counterclockwise.

With reference to Fig. 6, the inside one little one that rotary-type drive wheel is installed in arc wooden fork formula drive wheel greatly in engagement driving, big be initiatively little is speedup for driven, otherwise is deceleration.

With reference to Fig. 7; Several runners 1 are installed in respectively on the column 4 in each transmission wheel rim week with several arc wooden forks 3; The top, lower end of every root post is equipped with spring 5; Off normal that roller 6 is used to prevent on-stream column is installed and alleviates friction according to up and down its left side of its column of sense of rotation or the right, its spring is also corresponding to be compressed to rising to initial engagement to throwing off fully in the running.

Claims

1. bearing type drive wheel; By the running that is meshing with each other of driving wheel and follower; It is characterized in that drive wheel is that combined type is that each tooth is dismantled and assembled; Tooth at least two/one in its edge of driving gear week is made up of the runner that several can original positions rotation, with runner intermeshing other 1/2nd replace by plate leaf or wooden fork mouth.

2. a kind of bearing type drive wheel according to claim 1 is characterized in that wooden fork mouth with the runner that is used to replace tooth and on-stream and the mutual fit of runner is installed in the column that each root can be inside and outside automatically goes up and down respectively.

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