CN202560883U - Coupler for synthesizing positive feedback end face friction by motion of spherical inertial bodies - Google Patents
Coupler for synthesizing positive feedback end face friction by motion of spherical inertial bodies Download PDFInfo
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- CN202560883U CN202560883U CN2012201666393U CN201220166639U CN202560883U CN 202560883 U CN202560883 U CN 202560883U CN 2012201666393 U CN2012201666393 U CN 2012201666393U CN 201220166639 U CN201220166639 U CN 201220166639U CN 202560883 U CN202560883 U CN 202560883U
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Abstract
The utility model discloses a coupler for synthesizing positive feedback end face friction by motion of spherical inertial bodies. Inertial bodies which generate inertia forces required by friction coupling torque are designed to be spherical bodies and evenly distributed along a circumference in a driving end shell, and two sides of the spherical inertial bodies are respectively in a tangency contact with a driving end conical surface and a driven friction plate; a driving end of the inertial friction coupler and an output end of a coupling are manufactured into a whole to form a coupler shell, an inner end surface of the coupler shell is manufactured into a curved surface formed by intersecting large inner conical surfaces and small outer conical surfaces, and the inner end surface of the coupler shell is close to the coupling; a driven end is composed of an output shaft with an outer spline and the driven friction plate which is installed at the driven end and provided with an inner spline; and a bearing is supported between a driven end shell and the driving end shell, and by means of the inertia forces of the spherical inertial bodies, a driving friction plate and the driven friction plate are extruded to produce friction torque so as to transmit motion and power between the driving end shell and the driven end shell. According to the coupler for synthesizing positive feedback end face friction by motion of the spherical inertial bodies, the service life is prolonged, the structure is simplified, the cost is reduced, and the coupling effect is improved.
Description
Technical field
The utility model relates to a kind of feedback control friction coupling device that is used for mechanical soft start, especially the synthetic positive feedback end-face friction coupler of spherical inertial body motion
Background technique
Recently the coupler of tribology principle is applied in the mechanical Soft Starting System gradually; And be fast development trend; Like radial friction coupler, feedback control friction coupling device etc.; Begin to be used on the equipment such as coal mine scraper conveyor and Belt Conveyors, embodied long, advantage such as rate of fault is low, energy-conservation and overload protection of life-span.But also there is following deficiency, as: the rubbing surface shape is owed rationally, and equivalent coefficient of friction is little, and it is big to produce the identical required inertial mass of friction torque; Effectively friction area is little, and the pressure on the friction element unit area is big, and is not wear-resisting, and the life-span is short; Realize the mechanism and the complex structure of inertial force mechanism of feedback, manufacture difficulty is big, be difficult to realize standardization, the manufacturing cost height of product, and economic benefit is undesirable.The technology relevant with the utility model is the feedback control friction coupling device.
Existing feedback control friction coupling device is made up of drive end and driven end; Master and slave moved end is established a cover coasting body respectively; The deficiency that exists: the one, owing to need establish the present situation that a cover coasting body is realized positive feedback control friction coupling moment respectively in master and slave moved end, so the volume and weight of coupler is big; The 2nd, the friction type of coasting body and master and slave moved end is sliding friction, causes the device wearing and tearing to increase the weight of, and the life-span is short, and efficient is low; The 3rd, the contact area is little between driving and driven friction plate, pressure is relatively large, thereby makes that wearing and tearing are big, temperature rise, life-span be short.
The model utility content
For further improving life of product, simplified structure, reducing cost, improve the coupling effect, the utility model provides synthetic positive feedback end-face friction coupler of a kind of spherical inertial body motion and method of work thereof ".
The technological scheme that the utility model technical solution problem is adopted is:
The synthetic positive feedback end-face friction coupler of a kind of spherical inertial body motion; Mainly form by drive end and driven end; It is characterized in that; The coasting body that produces the required inertial force of friction coupling moment is designed to spheroid, and the spherical inertial body evenly distributes along circumference in the drive end housing, and spherical inertial body both sides reach with the drive end conical surface respectively and contact from movable friction plate is tangent; Inertia friction coupler drive end and coupling output terminal are made of one, constitute the coupler shell, the coupler shell is made big inner cone and the crossing curved surface of little male cone (strobilus masculinus) near the interior edge face of coupling; Driven end is by band output shaft of external splines and forming from movable friction plate of top loading band internal spline; By bearings, lean on the inertial force extruding principal and subordinate movable friction plate of spherical inertial body to produce friction torque transmitting movement and power between the two between driven end and the drive end housing.
According to kinematic principle; The linear velocity of the spherical inertial physique heart equals the speed at spheroid and drive end point of contact and half the with the speed sum at driven end point of contact; Be that the spheroid mean mass velocity is the synthetic of itself and driving and driven end-grain cutting spot speed; And this aggregate velocity produces inertial force and then produces friction coupling moment just; The speed positive feedback of driven end point of contact produces friction coupling moment, and therefore, the method for this generation coupling moment is called " the synthetic positive feedback end-face friction couling process of spherical inertial body motion ".
In order to transmit bigger coupling moment, the rubbing surface between master and slave moved end is circular flat, and with the same group of many groups of spherical inertial body control principal and subordinate movable friction plate.
The utility model method of work is:
Motor (prime mover) starts from zero rotating speed; Spherical inertial physique heart movement velocity is zero or during less than the critical velocity of coupling; Inertial force is zero or less than making principal and subordinate's movable friction plate produce the critical force of mutual extrusion; Do not produce coupling moment, motor (prime mover) zero load starts, and during startup motor and electrical network is not all produced impact; Along with the increase of motor (prime mover) rotating speed, before driven end rotated, spherical inertial physique heart linear velocity equaled itself and half of drive end point of contact speed; When spherical inertial physique heart linear velocity during greater than the critical velocity of coupling, principal and subordinate's movable friction plate mutual extrusion produces coupling moment, and increases along with the increase of motor (prime mover) rotating speed; When coupling moment during greater than the driven end resisting moment; Driven end and load begin to rotate; Spherical inertial physique heart linear velocity increase to driving and driven end-grain cutting spot speed and half the; The driven end rotating speed passes through the synthetic beginning of the speed positive feedback control friction coupling moment of spherical inertial body, and the driven end rotating speed continues increase and finally reaches and the drive end synchronization, and coupling reaches maximum comprehensive overloading ratio; When working machine seriously transshipped, the driven end rotating speed descended, and spherical inertial physique heart movement velocity descends, and the inertial force that produces coupling moment descends, and then the decline of friction coupling moment, played the overload protective function to motor (prime mover) and working machine.
The utility model has the advantages that:
1, use this method after; Changed existing feedback control friction coupling device and need establish the present situation that a cover coasting body is realized " positive feedback control friction coupling moment " respectively in master and slave moved end; Only with realized " speed with become positive feedback to control friction coupling moment " once cover " spherical inertial body ", the volume and weight of coupler descends significantly;
2, the friction type of coasting body and master and slave moved end has changed " rolling friction " into by the sliding friction of adopting in the existing coupler, and wearing and tearing alleviate, ILS, efficient improve;
3, the inertial force of coasting body generation passes to friction plate through the auger pyramidal plane of master and slave moved end, has realized bigger expansion force rate, can produce bigger friction coupling moment with same inertial mass;
4, realized end-face friction between driving and driven friction plate, can be provided with many to driving and driven friction plate, thereby realized manyly to rubbing surface, increased substantially the ability of equivalent coefficient of friction and transmitted load;
5, guarantee that desirable bigger comprehensive overloading ratio has further been eliminated the slippage between driving and driven friction plate, has improved mechanical efficiency under the prerequisite of soft start effect, avoided the sliding friction consumed power and produce heat, reduce the temperature rise of system;
6, the contact area is big between driving and driven friction plate, pressure is less relatively, and wearing and tearing are little, temperature rise is low, the life-span is long thereby make.
In a word, use this method design friction coupling device, can make that systematic function is more superior, the life-span is longer, temperature rise is lower, more compact structure, weight be lighter.
Description of drawings
Fig. 1 is an aufbauprinciple schematic representation of using " the synthetic positive feedback end-face friction coupler of spherical inertial body motion " of the design of the utility model method.
Marginal data: 1-driven end, 2-spherical inertial body, 3-drive end, 4-be from movable friction plate, 5-active friction plate, 6-output terminal awl dish friction plate.
Embodiment
Existing aufbauprinciple according to " the synthetic positive feedback end-face friction coupler of spherical inertial body motion " shown in Figure 1 further specifies the scheme of the utility model.As shown in Figure 1, the synthetic positive feedback end-face friction coupler of spherical inertial body motion is mainly formed by drive end 3, driven end 1, ball collar gonosome 2, output terminal awl dish friction plate 6, active friction plate 5 and from movable friction plate 4 etc.; Drive end 3 is that coupling, coupler housing machine drive end inner conical surface are made a member; Driven end 1 is made up of with axle head coupling arrangement (look different installation requirements and select coupling or spline axle head) the axle of a band external splines; From movable friction plate 4 and active friction plate 5 respectively with spline be contained on the output terminal splined shaft with input end housing splined hole in; Active friction plate 5 interval on excircle stamps out the end face spring sheet for 120 °, makes active friction plate 5 and when not being stressed, is separated from each other (the very little about 0.05-0.1mm in gap) from movable friction plate 4; Several spherical coasting bodies 2 are uniformly distributed along the circumference between input end inner conical surface and output terminal awl dish friction plate 6.
During enforcement, drive end 3 housing left end inner side surfaces are made the curved surface of inside and outside conical intersection, are used for supporting and driving spherical coasting body 2; Output terminal awl dish friction plate 6 left surfaces are made inner conical surface, lean on the elasticity of the end face spring sheet on the active friction plate 5 to push output terminal awl dish friction plate 6 to spherical inertial body 2, make both remain contact; In the coupling transmission process; Spherical inertial body 2 can roll between drive end 3 housings and output terminal awl dish friction plate 6; The motion of drive end 3 housings and output terminal awl dish friction plate 6 is synthesized on the spherical inertial body 2, has realized that the double action of controlling the inertial force of spherical inertial body 2 with driven end motion positive feedback is synthesized in the motion of principal and subordinate moved end; The inertial force of spherical inertial body 2 passes on principal and subordinate's movable friction plate after enlarging through output terminal awl dish friction plate 6; Principal and subordinate's movable friction plate is compressed each other and produce friction driving moment, realized the function of the synthetic positive feedback end-face friction couplings of spherical inertial body 2 motions.
It can also be seen that from Fig. 1 change the size that can change the coupler carry-over moment from the group number of movable friction plate 4 and active friction plate 5, this is more conducive to realize the seriation of coupler and the standardization of component.
In order to transmit bigger coupling moment, the rubbing surface between master and slave moved end is circular flat, and with the same group of many groups of spherical inertial body control principal and subordinate movable friction plate.
Claims (2)
1. positive feedback end-face friction coupler is synthesized in a spherical inertial body motion; Mainly form by drive end and driven end; It is characterized in that; The coasting body that produces the required inertial force of friction coupling moment is designed to spheroid, and the spherical inertial body evenly distributes along circumference in the drive end housing, and spherical inertial body both sides reach with the drive end conical surface respectively and contact from movable friction plate is tangent; Inertia friction coupler drive end and coupling output terminal are made of one, constitute the coupler shell, the coupler shell is made big inner cone and the crossing curved surface of little male cone (strobilus masculinus) near the interior edge face of coupling; Driven end is by band output shaft of external splines and forming from movable friction plate of top loading band internal spline; By bearings, lean on the inertial force extruding principal and subordinate movable friction plate of spherical inertial body to produce friction torque transmitting movement and power between the two between driven end and the drive end housing.
2. friction coupling device as claimed in claim 1 is characterized in that the rubbing surface between master and slave moved end is circular flat, and with the same group of many groups of spherical inertial body control principal and subordinate movable friction plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201666393U CN202560883U (en) | 2012-04-19 | 2012-04-19 | Coupler for synthesizing positive feedback end face friction by motion of spherical inertial bodies |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012201666393U CN202560883U (en) | 2012-04-19 | 2012-04-19 | Coupler for synthesizing positive feedback end face friction by motion of spherical inertial bodies |
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| CN202560883U true CN202560883U (en) | 2012-11-28 |
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| CN2012201666393U Expired - Fee Related CN202560883U (en) | 2012-04-19 | 2012-04-19 | Coupler for synthesizing positive feedback end face friction by motion of spherical inertial bodies |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102619905A (en) * | 2012-04-19 | 2012-08-01 | 崔希海 | Spherical inertial body motion synthesis positive feedback end surface friction coupler and working method thereof |
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2012
- 2012-04-19 CN CN2012201666393U patent/CN202560883U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102619905A (en) * | 2012-04-19 | 2012-08-01 | 崔希海 | Spherical inertial body motion synthesis positive feedback end surface friction coupler and working method thereof |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121128 Termination date: 20150419 |
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| EXPY | Termination of patent right or utility model |