CN104896044A - Friction transmission mechanism and speed reducer - Google Patents
Friction transmission mechanism and speed reducer Download PDFInfo
- Publication number
- CN104896044A CN104896044A CN201510309726.8A CN201510309726A CN104896044A CN 104896044 A CN104896044 A CN 104896044A CN 201510309726 A CN201510309726 A CN 201510309726A CN 104896044 A CN104896044 A CN 104896044A
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- China
- Prior art keywords
- compression plate
- axle
- transmission
- interval
- friction
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H19/00—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion
- F16H19/02—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion for interconverting rotary or oscillating motion and reciprocating motion
- F16H19/025—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion for interconverting rotary or oscillating motion and reciprocating motion comprising a friction shaft
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- One-Way And Automatic Clutches, And Combinations Of Different Clutches (AREA)
- Friction Gearing (AREA)
Abstract
The invention discloses a friction transmission mechanism. The friction transmission mechanism comprises a first shaft, a second shaft, at least two compaction plates and at least one transmission wheel, wherein the first shaft and the second shaft are distributed at intervals in parallel; the compaction plates are arranged on the first shaft; the transmission wheels are fixedly arranged on the second shaft and correspond to the compaction plates; and inner supporting mechanisms are arranged among the compaction plates or at least parts of the compaction plates, so that gaps are formed, outer edges of the transmission wheels can be inserted in the gaps, and lateral friction transmission can be implemented. Positive pressure between the shafts is changed into inserted type inclined plane friction transmission, lateral pressing is implemented with the aid of a pre-expanding force of a spring, the shortcomings that the compaction force of transmission of the traditional friction wheel on a shaft is large, and the power transmission capability is low are overcome effectively, and a transmission ratio is a diameter ratio of peripheries of two wheels, and is set simply and quickly. By the friction transmission mechanism, a driving force can be increased. Moreover, the friction transmission mechanism can replace the traditional gear transmission mechanism, and has wide application value.
Description
Technical field
The present invention relates to technical field of mechanical transmission, particularly relate to a kind of slip gear and retarder.
Background technique
General mechanical transmission; as the transmission of speed reducer; all send by gear transmission or friction wheel the Power output transmitting prime mover (comprising motor car engine or motor), object be change Driving Torque, device is moved in output speed, isolation and load to protect prime mover.
Friction driving is compared to gear transmission; there is stable working, noise is little, structure simply easily manufactures and manufacturing price is low; there is the ability absorbing impact and overload protection simultaneously; but also face velocity ratio instability, transmission efficiency is low, velocity range is little; especially two between centers need to apply positive pressure; the carrying of axle and bearing is large, and the life-span is shorter, and the pressure-bearing problem of the axle and bearing that how to solve friction driving becomes the technical problem being badly in need of solving.
Summary of the invention
The object of the invention is the technological deficiency for existing in prior art, and a kind of slip gear and retarder of adjustable large driving force are provided.
The technological scheme adopted for realizing object of the present invention is:
A kind of slip gear, comprise the first axle, the second axle arranged with the first axle parallel interval, be arranged at least two compression plates on the first axle, and to be fixedly installed on the second described axle and at least one drive wheel of arranging corresponding to described compression plate, wherein, at least one compression plate axially movably can be arranged on the first axle along the first axle, the first described axle is also provided with the pressing mechanism compressed to another compression plate by moveable compression plate, inner support mechanism is provided with the outer rim insertion forming the drive wheel described in allowing wherein and realize the interval of side friction transmission between described compression plate or at least partly compression plate, wherein, the cross section of the outer rim of described drive wheel is trapezoidal, the outer end of the inner side surface of the compression plate that two of the interval described in formation are adjacent is formed with corresponding inclined-plane.
Described compression plate is in pairs on the first axle, and the outside of two compression plates of often pair of compression plate is provided with pressing mechanism respectively accordingly, and forms described interval between two of often pair of compression plate compression plates.
Comprise multiple closed assembly and be arranged on compression plate on the first axle, wherein, form described interval between at least part of two adjacent compression plates, have pressing mechanism in outermost two compression plate arranged outside.
Described compression plate is made of cast iron, and the outer cause rubber of described drive wheel or at least drive wheel is made.
Described pressing mechanism comprises the locking nut be fixedly installed on the first axle, is set in the elastic member that on the first axle and two ends hold with locking nut and compression plate outer side surface respectively.
Described inner support mechanism comprises the inside support ring that setting is arranged on the caulking groove on two compression plate inner side surfaces of both sides, interval matchingly and embeds matchingly in described caulking groove.
A kind of slip gear comprises transmission shaft, the transmission bar arranged with transmission shaft perpendicular separation, be arranged at least two compression plates on transmission shaft, and to be fixedly installed on described transmission bar and corresponding with described compression plate arrange at least one to rub rib, wherein, at least one compression plate axially movably can be arranged on transmission shaft along transmission shaft, described transmission shaft is also provided with the pressing mechanism compressed to another compression plate by moveable compression plate, inner support mechanism is provided with to form the insertion of the friction rib upper end portion described in allowing wherein and realize the interval of side friction transmission between described compression plate or at least partly compression plate, the cross section of described friction rib or at least its upper end portion is trapezoidal, the outer end of the inner side surface of the compression plate that two of the interval described in formation are adjacent is formed with corresponding inclined-plane.
Described compression plate is made of cast iron, and the upper end portion of described friction rib or the rib that at least rubs is made up of rubber.
Described pressing mechanism comprises the locking nut be fixedly installed in transmission, be set in the elastic member that on transmission shaft and two ends hold with locking nut and compression plate outer side surface respectively, described inner support mechanism comprises the inside support ring that setting is arranged on the caulking groove on two compression plate inner side surfaces of both sides, interval matchingly and embeds matchingly in described caulking groove.
A kind of retarder, comprises and the slip gear described in any one of claim 1-6.
Compared with prior art, the invention has the beneficial effects as follows:
The present invention is by changing into the transmission of plug-in type bevel friction by the positive pressure of between centers, preset tension by spring realizes lateral pressurization, it is effective that to improve conventional friction wheel gearing impacting force on axle large, the feature that transmitted power ability is low, and velocity ratio is all circular diameter ratios of two-wheeled, arranges more simple and convenient.
Accompanying drawing explanation
Figure 1 shows that the axial arrangement schematic diagram of the slip gear of the first embodiment;
Figure 2 shows that the side-looking structural representation shown in Fig. 1;
Figure 3 shows that the axial arrangement schematic diagram of the slip gear of the second embodiment;
Figure 4 shows that the side-looking structural representation shown in Fig. 3.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
First embodiment
As illustrated in fig. 1 and 2, slip gear of the present invention comprises the first axle 1 as driving shaft, the second axle 2 arranged as driven shaft and with the first axle parallel interval, four compression plates 3, two drive wheels 4, hold-down mechanism and pressing mechanism, wherein, middle two compression plates can be arranged on movably vertically on the first axle and to be closely disposed adjacent, two other compression plate forms interval respectively and between two of centre compression plates, certainly, middle two compression plates also can be fixedly installed on the first described axle, described pressing mechanism is separately positioned on the first described axle to be compressed to the inside by two of outside compression plates, two inner support mechanism are arranged between the compression plate in two outsides and the compression plate of corresponding centre accordingly to be inserted wherein to form the drive wheel outer rim described in allowing and realizes the interval of side friction transmission.Two described drive wheels to be fixedly installed on the second described axle and correspondingly with described two intervals to arrange.
Specifically, described pressing mechanism comprises the locking nut 5 be fixedly installed on the first axle, is set in the elastic member 6 that on the first axle and two ends hold with locking nut and compression plate outer side surface respectively.Certainly, pressing mechanism also can adopt the axial compression mechanism of hydraulic type or other modes.Described elastic member is preferably disc spring or other elastic elements, because the impacting force of disc spring is larger, when the outer rim that the side at interval is transmitted wheel is inserted, namely described inner support mechanism is used for preventing compression plate crooked, preferably, described inner support mechanism comprises the inside support ring 7 that setting is arranged on the caulking groove on two compression plate inner side surfaces of both sides, interval matchingly and embeds matchingly in described caulking groove, inside support ring both ends of the surface are parallel, and inside support ring two ends comprise portion compresses dish respectively, effectively can reach overall unanimously parallel by support compression dish.Certainly the spring that described inner support mechanism also can adopt two ends to hold with compression plate inner side surface respectively realizes.Because inside support ring directly determines the minimum width at interval, also the dynamics requirement that drive plate outer rim is inserted and the size inserting trailing flank frictional force is just determined, namely, the tension force of the width of inside support ring, the degree of depth of caulking groove and disc spring is set by coupling, the size adjustment transmitting moment can be realized.
The present invention is by changing into the transmission of plug-in type bevel friction by the positive pressure of between centers, preset tension by spring realizes lateral pressurization, it is effective that to improve conventional friction wheel gearing impacting force on axle large, the feature that transmitted power ability is low, and velocity ratio is all circular diameter ratios of two-wheeled, arranges more simple and convenient.
Preferably, for increasing the friction factor between compression plate and drive wheel, described compression plate is made of cast iron, and the outer rim (as shade hatched parts in 1 and Fig. 2) of described drive wheel or at least drive wheel is made up of rubber.Certainly, the outer cause rubber of compression plate is made, and drive wheel is made of cast iron the object that can realize the present invention equally.
In order to prevent " skidding " between compression plate and drive wheel, the cross section of the outer rim of described drive wheel is trapezoidal, the outer end of the inner side surface of the compression plate that two of the interval described in formation are adjacent is formed with corresponding inclined-plane, described trapezoidal base angle is 30 °-45 °, adopt corresponding conical design, effectively improve area of contact, and described base angle and pressure angle, also be Self-locking angle arctgf, wherein, f is the friction factor of compression plate and drive plate material, as cast iron and rubber about 0.8, then this base angle is arranged on about 40 °.This base angle is rationally set, effectively can ensures contact, the separation of the conical surface, can also effectively avoid skidding simultaneously.
It should be noted that, above-mentioned is with the first axle for driving shaft, and the second described axle is that driven shaft carries out exemplary illustrated, and certainly, the first axle also can be driven shaft, and the second axle is driving shaft.Namely the setting of compression plate and follower can optionally do any adjustment.
As an extension, the more compression plate of closed assembly and drive wheel can also increase frictional force, that is, multiple compression plate is gone here and there successively on the first axle and hold-down mechanism is only set in outermost both sides, inner support mechanism can be utilized at two often adjacent compression plates to form interval, also jumpily interval can be formed, that is, often pair of compression plate forms an interval, and two adjacent two pairs of compression plates are close contacts, such energy reserves enough spaces to the setting of drive plate, constructability.
One as above-mentioned transmission is out of shape, described compression plate is in pairs on the first axle, the outside of two compression plates of often pair of compression plate is provided with pressing mechanism respectively accordingly, and form described interval between two of often pair of compression plate compression plates, namely an independent frictional transmission unit is formed at often pair of compression plate and drive wheel, by arranging the gear unit of multiple mutual noninterference, arrange simplified overhauling and change facility, driving torque is adjustable.
Using the core component of the slip gear of the present embodiment as retarder, have volume equally little, configuration is convenient, the advantages such as transmission is adjustable.
Second embodiment
As shown in Figure 3 and Figure 4, the slip gear of the present embodiment comprises transmission shaft 11, the transmission bar 12 arranged with transmission shaft perpendicular separation, be arranged on four compression plates 13 on transmission shaft, and to be fixedly installed on described transmission bar the rib 14 and two of arranging corresponding to described compression plate rub, be provided with inner support mechanism between two pairs of compression plates to insert wherein and the interval realizing side friction transmission to form the friction rib upper end portion described in allowing, the cross section of described friction rib or at least its upper end portion is trapezoidal, the outer end of the inner side surface of the compression plate that two of the interval described in formation are adjacent is formed with corresponding inclined-plane.That is, gear & rack structure is also used slip gear to realize.
Compared with a upper embodiment, on transmission shaft, the setting of compression plate is completely similar to arranging of compression plate on the first axle, the present embodiment also supports that the various expansions of the first embodiment extend and distortion completely, described friction rib arranges completely similar to the outer rim of drive wheel in the first embodiment, specifically, the present embodiment is by changing into the transmission of plug-in type bevel friction by the positive pressure between transmission shaft and transmission bar, preset tension by spring realizes lateral pressurization, effective to improve conventional friction gearing impacting force on axle large, the feature that transmitted power ability is low.
Preferably, for increasing the friction factor between compression plate and friction rib, described compression plate is made of cast iron, and the upper end portion (hatched parts namely shown in Fig. 3 and Fig. 4) of described friction rib or the rib that at least rubs is made up of rubber.Certainly, the outer cause rubber of compression plate is made, and friction rib is made of cast iron the object that can realize the present invention equally.
In order to prevent between compression plate and friction rib " skidding ", the cross section of the upper end portion of described clamping disk(-sc) is trapezoidal, the outer end of the inner side surface of the compression plate that two of the interval described in formation are adjacent is formed with corresponding inclined-plane, described trapezoidal base angle is 30 °-45 °, adopt corresponding conical design, effectively improve area of contact, and described base angle and pressure angle, also be Self-locking angle arctgf, wherein, f is the friction factor of compression plate and friction rib material, as cast iron and rubber about 0.8, then this base angle is arranged on about 40 °.This base angle is rationally set, effectively can ensures contact, the separation of the conical surface, can also effectively avoid skidding simultaneously.
As an extension, the all right more compression plate of closed assembly, arranges multiple friction rib to increase frictional force, namely, multiple compression plate is gone here and there successively on transmission shaft, only hold-down mechanism is set in outermost both sides, inner support mechanism can be utilized at two often adjacent compression plates to form interval, also jumpily can form interval, namely, often pair of compression plate forms an interval, and two adjacent two pairs of compression plates are close contacts, reserve enough spaces, constructability can to like this setting of friction rib.
One as above-mentioned transmission is out of shape, described compression plate is in pairs on the first axle, the outside of two compression plates of often pair of compression plate is provided with pressing mechanism respectively accordingly, and form described interval between two of often pair of compression plate compression plates, namely an independent frictional transmission unit is formed at often pair of compression plate and a friction rib, by arranging the gear unit of multiple mutual noninterference, arrange simplified overhauling and change facility, driving torque is adjustable.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (10)
1. a slip gear, it is characterized in that, comprise the first axle, the second axle arranged with the first axle parallel interval, be arranged at least two compression plates on the first axle, and to be fixedly installed on the second described axle and at least one drive wheel of arranging corresponding to described compression plate, wherein, at least one compression plate axially movably can be arranged on the first axle along the first axle, the first described axle is also provided with the pressing mechanism compressed to another compression plate by moveable compression plate, inner support mechanism is provided with the outer rim insertion forming the drive wheel described in allowing wherein and realize the interval of side friction transmission between described compression plate or at least partly compression plate, wherein, the cross section of the outer rim of described drive wheel is trapezoidal, the outer end of the inner side surface of the compression plate that two of the interval described in formation are adjacent is formed with corresponding inclined-plane.
2. slip gear as claimed in claim 1, it is characterized in that, described compression plate is in pairs on the first axle, and the outside of two compression plates of often pair of compression plate is provided with pressing mechanism respectively accordingly, and forms described interval between two of often pair of compression plate compression plates.
3. slip gear as claimed in claim 1, it is characterized in that, comprise multiple closed assembly and be arranged on compression plate on the first axle, wherein, form described interval between at least part of two adjacent compression plates, have pressing mechanism in outermost two compression plate arranged outside.
4. the slip gear as described in any one of claim 1-3, is characterized in that, described compression plate is made of cast iron, and the outer cause rubber of described drive wheel or at least drive wheel is made.
5. slip gear as claimed in claim 4, it is characterized in that, described pressing mechanism comprises the locking nut be fixedly installed on the first axle, is set in the elastic member that on the first axle and two ends hold with locking nut and compression plate outer side surface respectively.
6. slip gear as claimed in claim 4, it is characterized in that, described inner support mechanism comprises the inside support ring that setting is arranged on the caulking groove on two compression plate inner side surfaces of both sides, interval matchingly and embeds matchingly in described caulking groove.
7. a slip gear, it is characterized in that, comprise transmission shaft, the transmission bar arranged with transmission shaft perpendicular separation, be arranged at least two compression plates on transmission shaft, and to be fixedly installed on described transmission bar and corresponding with described compression plate arrange at least one to rub rib, wherein, at least one compression plate axially movably can be arranged on transmission shaft along transmission shaft, described transmission shaft is also provided with the pressing mechanism compressed to another compression plate by moveable compression plate, inner support mechanism is provided with to form the insertion of the friction rib upper end portion described in allowing wherein and realize the interval of side friction transmission between described compression plate or at least partly compression plate, the cross section of described friction rib or at least its upper end portion is trapezoidal, the outer end of the inner side surface of the compression plate that two of the interval described in formation are adjacent is formed with corresponding inclined-plane.
8. slip gear as claimed in claim 7, it is characterized in that, described compression plate is made of cast iron, and the upper end portion of described friction rib or the rib that at least rubs is made up of rubber.
9. slip gear as claimed in claim 7, it is characterized in that, described pressing mechanism comprises the locking nut be fixedly installed in transmission, be set in the elastic member that on transmission shaft and two ends hold with locking nut and compression plate outer side surface respectively, described inner support mechanism comprises the inside support ring that setting is arranged on the caulking groove on two compression plate inner side surfaces of both sides, interval matchingly and embeds matchingly in described caulking groove.
10. a retarder, is characterized in that, comprises and the slip gear described in any one of claim 1-6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510309726.8A CN104896044B (en) | 2015-06-08 | 2015-06-08 | Slip gear and decelerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510309726.8A CN104896044B (en) | 2015-06-08 | 2015-06-08 | Slip gear and decelerator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104896044A true CN104896044A (en) | 2015-09-09 |
| CN104896044B CN104896044B (en) | 2017-12-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510309726.8A Active CN104896044B (en) | 2015-06-08 | 2015-06-08 | Slip gear and decelerator |
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| Country | Link |
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| CN (1) | CN104896044B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111420438A (en) * | 2020-04-08 | 2020-07-17 | 杭州天惠实业有限公司 | Pressure filter suitable for laboratory is used in way |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2435568Y (en) * | 2000-06-09 | 2001-06-20 | 番禺市力丰食品机械厂 | Belt-type variable-speed device |
| CN103459891A (en) * | 2011-03-16 | 2013-12-18 | 日本精工株式会社 | Friction roller type deceleration device and drive device for electric automobile |
| JP2014190537A (en) * | 2013-03-28 | 2014-10-06 | Nsk Ltd | Friction roller type reduction gear |
| CN104405838A (en) * | 2014-11-10 | 2015-03-11 | 常州市双成工具有限公司 | Power transmission device |
| CN204704343U (en) * | 2015-06-08 | 2015-10-14 | 刘正山 | Slip gear and retarder |
-
2015
- 2015-06-08 CN CN201510309726.8A patent/CN104896044B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2435568Y (en) * | 2000-06-09 | 2001-06-20 | 番禺市力丰食品机械厂 | Belt-type variable-speed device |
| CN103459891A (en) * | 2011-03-16 | 2013-12-18 | 日本精工株式会社 | Friction roller type deceleration device and drive device for electric automobile |
| JP2014190537A (en) * | 2013-03-28 | 2014-10-06 | Nsk Ltd | Friction roller type reduction gear |
| CN104405838A (en) * | 2014-11-10 | 2015-03-11 | 常州市双成工具有限公司 | Power transmission device |
| CN204704343U (en) * | 2015-06-08 | 2015-10-14 | 刘正山 | Slip gear and retarder |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111420438A (en) * | 2020-04-08 | 2020-07-17 | 杭州天惠实业有限公司 | Pressure filter suitable for laboratory is used in way |
| CN111420438B (en) * | 2020-04-08 | 2022-02-08 | 杭州天惠实业有限公司 | Pressure filter suitable for laboratory is used in way |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104896044B (en) | 2017-12-05 |
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