CN201155561Y - Friction transmission speed variator intermediate roller for automatically governing contact pressure - Google Patents
Friction transmission speed variator intermediate roller for automatically governing contact pressure Download PDFInfo
- Publication number
- CN201155561Y CN201155561Y CNU2008200974047U CN200820097404U CN201155561Y CN 201155561 Y CN201155561 Y CN 201155561Y CN U2008200974047 U CNU2008200974047 U CN U2008200974047U CN 200820097404 U CN200820097404 U CN 200820097404U CN 201155561 Y CN201155561 Y CN 201155561Y
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- China
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- section
- endoporus
- roller
- drive roller
- afterburning
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- Expired - Fee Related
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Abstract
The utility model relates to an intermediate roller wheel self-governing a contact pressure in a friction driving speed transmission, pertaining to the technical field of a transmission with a transmitting rotatory movement and providing the intermediate roller wheel self-governing the contact pressure. The technical proposal is that the utility model comprises a driving roller wheel, a driven roller wheel and a reinforcing cam; an outer surface of a left section of the driving roller wheel is a spherical surface; a right section is arranged into a collar bearing of the roller wheel; the outer surface of the right section of the driven roller wheel is the spherical surface; the left section of the driven roller wheel is arranged into the right section of an inner hole of the driving roller wheel; the reinforcing cam is a two-step circular cylinder; a first section of the reinforcing cam is provided with a spindle groove; a V-shaped groove is arranged on an end surface of the first section; for the two reinforcing cams, the spindle groove of one reinforcing cam is arranged into the spindle groove of the inner hole of the driving roller wheel; the first section is arranged into the right section of the inner hole of the driving roller wheel; another first section is arranged into the inner hole of the driving roller wheel; the spindle groove of another first section is arranged into the spindle groove of the inner hole of the driven roller wheel; a ball is arranged in the V-shaped groove; a spring is arranged in a central hole of a holder. The intermediate roller wheel can be applied to a vehicle and a machine and has beneficial effects that a driving torque can be adjusted automatically.
Description
Technical field
The utility model belongs to the transmission device technical field of the friction between rotatable member with the variable gear ratio conveying rotary motion.
Background technique
Friction driving limit quick-mounting is put, and comes conveying rotary motion with the contact pressure that produces between friction disk and the roller.The deficiency of prior art is the contact pressure between roller and the friction disk, can not change with the change of load, under heavy load condition, may cause transmission device to skid because of the contact pressure deficiency between roller and the friction disk.
Summary of the invention
Technical problem to be solved provides the friction driving speed change gear that a kind of contact pressure can increase with the increase of load and regulates the middle roller of contact pressure automatically.
Solve the technological scheme of its technical problem, the friction driving speed change gear is regulated the middle roller of contact pressure automatically, comprises drive roller, driven roller, roller ring, afterburning cam, ball, retainer and spring; Adorn bearing in the endoporus of roller ring, the antimere of roller ring surface has two fulcrums, is contained on the support that roller is installed with fulcrum, can rotate around fulcrum;
Drive roller is the second order cylinder, the left side section outer surface of drive roller is a spherical surface, the right section of drive roller external diameter is slightly less than roller ring inner bearing internal diameter, drive roller is packed into right section in the roller ring inner bearing, the endoporus of drive roller is divided into two sections, endoporus left side section internal diameter is less than the right section of endoporus internal diameter, and endoporus left side section internal surface has spline; The drive roller outer surface also can be trochoidal surface;
Driven roller is the second order cylinder, the right section outer surface of driven roller is a spherical surface, its radius equals the radius of drive roller left side section spherical outer surface, the external diameter of driven roller left side section is slightly less than the internal diameter of the right section of drive roller endoporus, driven roller is packed into left side section in the right section of drive roller endoporus, the endoporus internal diameter of driven roller equals the internal diameter of drive roller endoporus left side section, and interior internal surface of hole has spline; The right section outer surface of driven roller also can be trochoidal surface;
Afterburning cam is the second order cylindrical body that endoporus is arranged, one section that afterburning cam diameter is little has and drive roller endoporus left side section and the corresponding spline tooth of driven roller endoporus spline in appearance, one section big diameter of afterburning cam diameter is slightly less than the right section of drive roller endoporus internal diameter, and it is the V-shaped groove of V-arrangement that one section end face that the diameter of afterburning cam is big has several sections; Middle roller has two afterburning cams, afterburning cam is packed into the little one section spline tooth of its diameter in the section spline of a drive roller endoporus left side, in one section right section of the drive roller endoporus of packing into that diameter is big, another afterburning cam is packed into big one section of diameter in the right section of drive roller endoporus, packs in the spline of endoporus of driven roller with the little one section spline tooth of diameter;
With the ball of V-shaped groove number respective numbers, be contained in respectively in each V-shaped groove of afterburning cam; Retainer has center hole to reach and the corresponding ball hole of ball quantity, and retainer is contained between interior two the afterburning cams of the right section of drive roller endoporus; Spring passes the retainer center hole and is contained in the afterburning cam endoporus, and both ends of the spring contacts with two afterburning cam endoporus bottoms respectively, produces the tension force between two afterburning cams;
Middle roller is contained between the input friction disk and output friction disk of drive transmission device, and the left section surface of the drive roller in the middle roller contacts with the surface of input friction disk, and the right section surface of driven roller contacts with the output friction disk, produces contact pressure therebetween.When input friction disk when rotation, the input friction disk is abutted against and presses power transmission drive roller and rotate thereupon, the rotation of drive roller driven transmission roller, and driven roller is abutted against and presses the rotation of power transmission output friction disk; When load increased, the stressed increase of the ball between the afterburning cam promoted afterburning cam in the right and driven roller and moves to right, and increases the contact pressure between roller and the friction disk.
Beneficial effect: the utility model is applied to various vehicles and mechanical transmission.Beneficial effect is, can obtain continuous level and smooth velocity ratio, realizes the stepless change transmission, and its driving torque increases with the increase of load, and transmission device can not skid.
Description of drawings
Fig. 1 is a structural drawing of the present utility model.Among Fig. 1,1 is drive roller, and 2 is driven roller, and 3 is the roller ring, and 4 is afterburning cam, and 5 is ball, and 6 is retainer, and 7 is spring, and 8 is bearing, and 10 is spline.Fig. 2 is roller ring figure, and 9 is fulcrum among the figure.Fig. 3 is afterburning cam diagram, and 11 is V-shaped groove among the figure.12 is spline tooth.
Embodiment
Embodiment, there are two fulcrums 9 on roller ring 3 surfaces, are contained in fulcrum 9 on the support that middle roller is installed; Drive roller 1 is the second order cylinder, and left side section appearance is a spherical surface, and drive roller 1 is with in the right section roller ring 3 endoporus bearings 8 of packing into, and drive roller 1 endoporus is divided into two sections, and endoporus left side section internal diameter is less than the right section of endoporus internal diameter, and table has spline 10 in the left section of endoporus; Driven roller 2 is for there being the second order cylinder of endoporus, driven roller 2 right section appearances are spherical surface, its radius equals the radius of drive roller 1 left side section spherical surface, driven roller 2 left side section external diameters are slightly less than the right section of drive roller 1 endoporus internal diameter, driven roller 2 is packed into left side section in the right section of drive roller 1 endoporus, the endoporus internal diameter of driven roller 2 equals drive roller 1 endoporus left side section internal diameter, and table has spline 10 in the endoporus; Afterburning cam 4 is the second order cylindrical body, one section little appearance of afterburning cam 4 diameters has and drive roller 1 endoporus left side section and driven roller 2 endoporus splines 10 corresponding spline tooths 12, one section big diameter of afterburning cam 4 diameters is slightly less than the right section of drive roller 1 endoporus internal diameter, on the big one section end face of the diameter of afterburning cam 4 several V-shaped grooves 11 is arranged; Middle roller has two afterburning cams 4, pack in the spline 10 of endoporus left side section of drive roller 1 with one section little spline tooth 12 of its diameter for one, in the right section of the endoporus of one section drive roller 1 of packing into that diameter is big, another afterburning cam 4 is with in the right section of the endoporus of one section big drive roller 1 of packing into of diameter, packs in the spline 10 of endoporus of driven roller 2 with one section little spline tooth 12 of diameter; Ball 5 with the number respective numbers of V-shaped groove 11 is contained in respectively in each V-shaped groove 11 of afterburning cam 4; Retainer 6 has center hole to reach and the corresponding ball hole of ball quantity, and retainer 6 is contained between interior two the afterburning cams 4 of the right section of drive roller 1 endoporus; The center hole that spring 7 passes retainer 6 is contained in the endoporus of afterburning cam 4, and spring 7 two ends contact with the endoporus bottom of two afterburning cams 4 respectively, produces the tension force between two afterburning cams 4.
Claims (1)
1. the friction driving speed change gear is regulated the middle roller of contact pressure automatically, it is characterized in that comprising drive roller (1), driven roller (2), roller ring (3), afterburning cam (4), ball (5), retainer (6) and spring (7);
Adorn bearing (8) in the endoporus of roller ring (3), the antimere on the surface of roller ring (3) has two fulcrums (9), is contained in fulcrum (9) on the support that middle roller is installed;
Drive roller (1) is the second order cylinder, the left side section outer surface of drive roller (1) is a spherical surface, the right section of drive roller (1) external diameter is slightly less than bearing (8) internal diameter in the roller ring (3), drive roller (1) is packed into right section in roller ring (3) inner bearing (8), the endoporus of drive roller (1) is divided into two sections, endoporus left side section internal diameter is less than the right section of endoporus internal diameter, and endoporus left side section internal surface has spline (10);
Driven roller (2) is the second order cylinder, the right section outer surface of driven roller (2) is a spherical surface, its radius equals the radius of drive roller (1) left side section spherical outer surface, the external diameter of driven roller (2) left side section is slightly less than the internal diameter of the right section of drive roller (1) endoporus, driven roller (2) is packed into left side section in the right section of drive roller (1) endoporus, the endoporus internal diameter of driven roller (2) equals the internal diameter of drive roller (1) endoporus left side section, and interior internal surface of hole has spline (10);
Afterburning cam (4) is for there being the second order cylindrical body of endoporus, one section that afterburning cam (4) diameter is little has and the endoporus left side section of drive roller (1) and the corresponding spline tooth (12) of spline (10) of driven roller (2) endoporus in appearance, one section big diameter of afterburning cam (4) diameter is slightly less than the right section of the endoporus internal diameter of drive roller (1), and on big one section the end face of the diameter of afterburning cam (4) several sections being arranged is the V-shaped groove (11) of V-arrangement; Middle roller has two afterburning cams (4), pack in the spline (10) of endoporus left side section of drive roller (1) with one section little spline tooth (12) of its diameter for one, in the right section of the endoporus of one section drive roller of packing into (1) that diameter is big, another afterburning cam (4) is with in the right section of the endoporus of the big one section drive roller of packing into (1) of diameter, packs in the spline (10) of driven roller (2) endoporus with one section little spline tooth (12) of diameter;
With the ball (5) of the corresponding quantity of V-shaped groove (11) number, be contained in respectively in each V-shaped groove (11) of afterburning cam (4); Retainer (6) has center hole to reach and the corresponding ball hole of ball (5) quantity, and retainer (6) is contained between interior two the afterburning cams (4) of the right section of drive roller (1) endoporus; The center hole that spring (7) passes retainer (6) is contained in the endoporus of afterburning cam (4), and spring (7) two ends contact with the endoporus bottom of two afterburning cams (4) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200974047U CN201155561Y (en) | 2008-01-03 | 2008-01-03 | Friction transmission speed variator intermediate roller for automatically governing contact pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200974047U CN201155561Y (en) | 2008-01-03 | 2008-01-03 | Friction transmission speed variator intermediate roller for automatically governing contact pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201155561Y true CN201155561Y (en) | 2008-11-26 |
Family
ID=40103344
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200974047U Expired - Fee Related CN201155561Y (en) | 2008-01-03 | 2008-01-03 | Friction transmission speed variator intermediate roller for automatically governing contact pressure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201155561Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102192299A (en) * | 2010-03-19 | 2011-09-21 | 江从寿 | Toroidal stepless speed changing system |
-
2008
- 2008-01-03 CN CNU2008200974047U patent/CN201155561Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102192299A (en) * | 2010-03-19 | 2011-09-21 | 江从寿 | Toroidal stepless speed changing system |
| CN102192299B (en) * | 2010-03-19 | 2015-08-05 | 江从寿 | Toroidal stepless speed changing system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081126 Termination date: 20110103 |