CN102797818B - Milling machine V-belt speed change mechanism capable of changing speed without stropping - Google Patents
Milling machine V-belt speed change mechanism capable of changing speed without stropping Download PDFInfo
- Publication number
- CN102797818B CN102797818B CN201210307079.3A CN201210307079A CN102797818B CN 102797818 B CN102797818 B CN 102797818B CN 201210307079 A CN201210307079 A CN 201210307079A CN 102797818 B CN102797818 B CN 102797818B
- Authority
- CN
- China
- Prior art keywords
- steel ball
- belt wheel
- belt pulley
- axle
- roller
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000008859 change Effects 0.000 title claims abstract description 17
- 238000003801 milling Methods 0.000 title claims abstract description 8
- 230000007246 mechanism Effects 0.000 title abstract description 3
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 45
- 239000010959 steel Substances 0.000 claims abstract description 45
- 230000005540 biological transmission Effects 0.000 abstract description 14
- 238000005096 rolling process Methods 0.000 abstract 2
- 230000000694 effects Effects 0.000 description 3
- 230000004907 flux Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000004904 shortening Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Landscapes
- Friction Gearing (AREA)
- Transmission Devices (AREA)
Abstract
The invention relates to a milling machine V-belt speed change mechanism capable of changing speed without stropping, comprising a motor shaft, wherein the motor shaft is fixedly connected with a driving pulley, the driving pulley is connected with an upper belt wheel and a lower belt wheel through a belt wheel, the interiors of the upper belt wheel and the lower belt wheel are connected with shafts through bearings, the upper belt wheel and the lower belt wheel are axially provided with inner holes, the symmetric outer surfaces of the shafts are provided with circular arc slots, the shafts are further provided with an upper steel ball hole and a lower steel ball hole respectively, steel balls are arranged in the upper steel ball and the lower steel ball contains, a spring is arranged between an upper rolling column and a lower rolling column, an upper transmission sleeve is arranged between bearings in the upper belt wheel, a lower transmission sleeve is arranged between bearings in the lower belt wheel, the lower transmission sleeve and the lower belt wheel are in key connection, the upper transmission sleeve and the lower transmission sleeve are internally provided with semicircular arc slots, push rods are arranged in the inner holes and are in shapes of stepped shafts, step points of the push rods correspond to the steel balls, a sliding slot is arranged at the lower part of each shaft, a pin hole is arranged on each push rod, a pin passes through each pin hole, and a sliding sleeve is connected with the end part of each pin.
Description
Technical field
The present invention relates to a kind of gear, relate in particular to a kind of milling machine vee belt gear of the speed change of not stopping.
Background technique
The drive mechanism of general lathe these two kinds of gear transmission and belt transmission nothing more than, the gear of gear is generally by porose disc or gear change hand lever control shift fork or shifting block, then controls engagement and the disengagement of driving gear, to realize gear change; The speed change of the transmission of belt is generally that mode by manual replacing belt pulley is to realize; These two kinds traditional gear change processes of above gear transmission and belt transmission, all must, through parking, speed change, three steps of startup, lose time, and are difficult to raise the efficiency, and especially belt transmission, needs manually-operable belt and belt pulley, and efficiency is lower; Frequent starting motor immediate current brings very greatly simultaneously the waste of electric flux and the shortening of electrical machinery life.
Summary of the invention
The object of this invention is to provide the milling machine vee belt gear of the speed change of not stopping that a kind of using effect is good.
For achieving the above object, the technical solution used in the present invention is: a kind of milling machine vee belt gear of the speed change of not stopping, comprise motor shaft, on motor shaft, be fixedly connected with driving pulley, driving pulley is connected with upper belt pulley and lower belt pulley by belt, it is characterized in that: in upper belt pulley and lower belt pulley, be connected with axle by bearing, axially, have endoporus, the symmetrical outer surface of axle has arc groove, on axle, also have steel ball hole and lower steel ball hole, upper steel ball hole communicates with arc groove and endoporus, lower steel ball hole communicates with arc groove and endoporus, in upper steel ball hole and lower steel ball hole, steel ball is housed, the both sides of steel ball are designed with roller and lower roller, upper roller and lower roller are positioned at arc groove, between upper roller and lower roller, be designed with spring, between bearing in upper belt pulley, be designed with upper driving cover, upper driving cover is connected by key with upper belt pulley, between bearing in lower belt pulley, be designed with underdrive cover, underdrive cover is connected by key with lower belt pulley, in upper driving cover and underdrive cover, be designed with half-arc groove, push rod is housed in endoporus, push rod is multidiameter shaft shape, the maximum diameter place of push rod matches with endoporus, the ladder point of push rod is corresponding with steel ball, the bottom of axle has sliding-groove, on push rod, have pin-and-hole, in pin-and-hole, be installed with pin, pin end is connected with flip sleeve, flip sleeve is enclosed within the bottom of axle.
Advantageous effect of the present invention is: due to this structure of the present invention, so use the present invention can carry out the conversion of three positions in the situation that lathe does not stop electric machine rotation, be convenient to workman's operation, improve the efficiency of work, and owing to not stopping motor, prevent the frequent starting of motor, the waste of the electric flux that immediate current brings very greatly and the shortening of electrical machinery life, the double-speed motor that this structure can also replace existing market to use, cost is lower than double-speed motor, and the advantage of high pulling torque while the shortcoming of the low moment of torsion of double-speed motor being become to low speed in the time of the low speed of lathe, using effect is good.
Brief description of the drawings
Fig. 1 is structural representation of the present invention;
Fig. 2 is the A-A sectional view of Fig. 1;
Fig. 3 is structural representation of the present invention;
Fig. 4 is the B-B sectional view of Fig. 3;
Fig. 5 is structural representation of the present invention;
Fig. 6 is the C-C sectional view of Fig. 5.
In accompanying drawing: 1, upper belt pulley; 2, upper roller; 3, upper driving cover; 4, upper steel ball hole; 5, axle; 6, push rod; 7, bearing; 8, belt; 9, driving pulley; 10, motor shaft; 11, spring; 12, arc groove; 13, endoporus; 14, pin-and-hole; 15, sliding-groove; 16, flip sleeve; 17, lower steel ball hole; 18, underdrive cover; 19, lower roller; 20, lower belt pulley; 21, key; 22, half-arc groove.
Embodiment
Below in conjunction with the drawings and specific embodiments, the invention will be further described:
The present invention is as Fig. 1, 2, 3, 4, 5, shown in 6, a kind of milling machine vee belt gear of the speed change of not stopping, comprise motor shaft 10, on motor shaft 10, be fixedly connected with driving pulley 9, driving pulley 9 is connected with upper belt pulley 1 and lower belt pulley 20 by belt 8, it is characterized in that: in upper belt pulley 1 and lower belt pulley 20, be connected with axle 5 by bearing 7, axle 5 upwards has endoporus 13, the symmetrical outer surface of axle 5 has arc groove 12, on axle 5, also have steel ball hole 4 and lower steel ball hole 17, upper steel ball hole 4 communicates with arc groove 12 and endoporus 13, lower steel ball hole 17 communicates with arc groove 12 and endoporus 13, in upper steel ball hole 4 and lower steel ball hole 17, steel ball is housed, the both sides of steel ball are designed with roller 2 and lower roller 19, upper roller 2 and lower roller 19 are positioned at arc groove 12, between upper roller 2 and lower roller 19, be designed with spring 11, between bearing 7 in upper belt pulley 1, be designed with upper driving cover 3, upper driving cover 3 is connected by key 21 with upper belt pulley 1, between bearing 7 in lower belt pulley 20, be designed with underdrive cover 18, underdrive cover 18 is connected by key 21 with lower belt pulley 20, in upper driving cover 3 and underdrive cover 18, be designed with half-arc groove 22, push rod 6 is housed in endoporus 13, push rod 6 is multidiameter shaft shape, the maximum diameter place of push rod 6 matches with endoporus 13, the ladder point of push rod 6 is corresponding with steel ball, the bottom of axle 5 has sliding-groove 15, on push rod 6, have pin-and-hole 14, in pin-and-hole 14, be installed with pin, pin end is connected with flip sleeve 16, flip sleeve 16 is enclosed within the bottom of axle 5.
Motor shaft drives driving pulley to rotate, driving pulley drives upper belt pulley and lower belt pulley to rotate by vee belt, upper belt pulley and lower belt pulley drive upper driving cover and the synchronous rotation of underdrive cover by key, at this moment upper roller and lower roller are in state freely, upper driving cover and underdrive cover and upper roller and lower roller are in half contact condition, the rotation of upper driving cover and underdrive cover can only drive roller and lower roller to do rotation motion along the axis of oneself, so axle is not followed upper driving cover and underdrive cover does rotation motion.
In the time of needs speed change, external force moves flip sleeve and moves upward, flip sleeve is by pin upward sliding in sliding-groove, thereby drive push rod to move upward, in the time that the large place of the diameter of push rod arrives upper steel ball place, upper steel ball moves the radial direction of the upper steel ball hole along axle, and the mobile above roller that promotes of upper steel ball outwards moves, upper roller moves in half slot, stops mobile.
The upper belt pulley of motion drives upper driving cover to rotate by key, and upper driving cover is synchronizeed and rotated with it by upper roller belt moving axis, has realized the transmission to axle by motor.
In the time of needs speed change, flip sleeve moves downward, drive push rod to move down by bearing pin, upper roller and upper steel ball are returned to home position, and push rod continues to move down, in the time that the large place of the diameter of push rod arrives lower steel ball place, lower steel ball moves the radial direction of the sliding-groove along axle, lower steel ball mobile promotes lower roller and outwards moves, and when lower roller moves in the half-arc groove of underdrive cover, stops mobile.
The lower belt pulley of motion drives underdrive cover to rotate by key, and underdrive cover is synchronizeed and rotated with it by two lower roller belt moving axis, has realized the transmission to axle by motor.
Working principle of the present invention is: under the state not stopping, by the operation to flip sleeve, make the upper steel ball of push rod promotion or lower steel ball change the position of upper roller and lower roller, and then the convenient, fast and safe and reliable connecting and disconnecting that realize power transmission, reach the object of the speed change of not stopping.
Claims (1)
1. the milling machine vee belt gear of the speed change of not stopping, comprise motor shaft (10), on motor shaft (10), be fixedly connected with driving pulley (9), driving pulley (9) is connected with upper belt pulley (1) and lower belt pulley (20) by belt (8), it is characterized in that: in upper belt pulley (1) and lower belt pulley (20), be connected with axle (5) by bearing (7), axle (5) upwards has endoporus (13), the symmetrical outer surface of axle (5) has arc groove (12), on axle (5), also have steel ball hole (4) and lower steel ball hole (17), upper steel ball hole (4) communicates with arc groove (12) and endoporus (13), lower steel ball hole (17) communicates with arc groove (12) and endoporus (13), in upper steel ball hole (4) and lower steel ball hole (17), steel ball is housed, the both sides of steel ball are designed with roller (2) and lower roller (19), upper roller (2) and lower roller (19) are positioned at arc groove (12), between upper roller (2) and lower roller (19), be designed with spring (11), between bearing (7) in upper belt pulley (1), be designed with upper driving cover (3), upper driving cover (3) is connected by key (21) with upper belt pulley (1), between bearing (7) in lower belt pulley (20), be designed with underdrive cover (18), underdrive cover (18) is connected by key (21) with lower belt pulley (20), in upper driving cover (3) and underdrive cover (18), be designed with half-arc groove (22), push rod (6) is housed in endoporus (13), push rod (6) is multidiameter shaft shape, the maximum diameter place of push rod (6) matches with endoporus (13), the ladder point of push rod (6) is corresponding with steel ball, the bottom of axle (5) has sliding-groove (15), on push rod (6), have pin-and-hole (14), pin-and-hole is installed with pin in (14), pin end is connected with flip sleeve (16), flip sleeve (16) is enclosed within the bottom of axle (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210307079.3A CN102797818B (en) | 2012-08-27 | 2012-08-27 | Milling machine V-belt speed change mechanism capable of changing speed without stropping |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210307079.3A CN102797818B (en) | 2012-08-27 | 2012-08-27 | Milling machine V-belt speed change mechanism capable of changing speed without stropping |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102797818A CN102797818A (en) | 2012-11-28 |
| CN102797818B true CN102797818B (en) | 2014-09-24 |
Family
ID=47197059
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210307079.3A Active CN102797818B (en) | 2012-08-27 | 2012-08-27 | Milling machine V-belt speed change mechanism capable of changing speed without stropping |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102797818B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108526195B (en) * | 2018-03-23 | 2021-05-18 | 孔繁士 | Spring conduction bearing combined device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2212528Y (en) * | 1995-02-06 | 1995-11-15 | 陈伯恒 | Non-stop speed change mechanism |
| JP3328761B2 (en) * | 1995-09-01 | 2002-09-30 | ヤンマー農機株式会社 | Continuously variable transmission for agricultural machinery |
| CN200958569Y (en) * | 2006-08-18 | 2007-10-10 | 南通西马特机器制造有限公司 | Stepless speed change mechanism |
| CN201281114Y (en) * | 2008-08-28 | 2009-07-29 | 乐山市五通桥三缘电机厂 | Positive and negative rotating unilateral transmission device |
| CN202934391U (en) * | 2012-08-27 | 2013-05-15 | 山东威达重工股份有限公司 | Shutdown-free speed-change v-belt speed change mechanism for milling machine |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003090415A (en) * | 2001-09-19 | 2003-03-28 | Nsk Ltd | Pulley device with built-in roller clutch |
-
2012
- 2012-08-27 CN CN201210307079.3A patent/CN102797818B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2212528Y (en) * | 1995-02-06 | 1995-11-15 | 陈伯恒 | Non-stop speed change mechanism |
| JP3328761B2 (en) * | 1995-09-01 | 2002-09-30 | ヤンマー農機株式会社 | Continuously variable transmission for agricultural machinery |
| CN200958569Y (en) * | 2006-08-18 | 2007-10-10 | 南通西马特机器制造有限公司 | Stepless speed change mechanism |
| CN201281114Y (en) * | 2008-08-28 | 2009-07-29 | 乐山市五通桥三缘电机厂 | Positive and negative rotating unilateral transmission device |
| CN202934391U (en) * | 2012-08-27 | 2013-05-15 | 山东威达重工股份有限公司 | Shutdown-free speed-change v-belt speed change mechanism for milling machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102797818A (en) | 2012-11-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201723695U (en) | Ball screw type gear selection and shift execution mechanism | |
| CN204140852U (en) | A kind of automotive gear-shifting fork | |
| CN105465305A (en) | Friction-type stepless transmission | |
| CN202934391U (en) | Shutdown-free speed-change v-belt speed change mechanism for milling machine | |
| CN102797818B (en) | Milling machine V-belt speed change mechanism capable of changing speed without stropping | |
| CN102198532B (en) | Device for automatically converting positive rotation and reverse rotation of electric drill | |
| CN201227746Y (en) | Frequency conversion spindle apparatus for lathe spindle | |
| CN201644955U (en) | Threading machine | |
| CN203077093U (en) | Heavy type numerical-control roll grinder headstock main transmission system | |
| US11181186B2 (en) | Handheld power tool gearbox unit | |
| US20130305860A1 (en) | Electric Drill Forward And Reverse Rotation Automatic Switching Apparatus | |
| CN202402581U (en) | Variable-pitch-radius based star chain transmission stepless speed change device | |
| CN202239760U (en) | Double-speed electric impact drill | |
| CN100366949C (en) | Planet differential actuator | |
| CN202129478U (en) | Automatic switch device for forward and backward rotation of electric drill | |
| CN107061652B (en) | Stepless speed change device | |
| CN207378072U (en) | A kind of centre wheel inputs two shift transmission of manual shift | |
| CN203570986U (en) | Gearbox two-shaft assembly with 18-equal-section inner ring cam | |
| CN202402588U (en) | Mechanical gearbox | |
| CN206889631U (en) | A kind of automatic transmission | |
| CN101377217B (en) | Inner star wheel cam post rod type overrunning clutch | |
| CN202510683U (en) | Two-gear variable speed shaft for electric vehicle | |
| CN203297529U (en) | Gearbox of built-in clutch gear | |
| CN211889126U (en) | Stepless speed change machining table for machining | |
| CN203796786U (en) | Hand wheel clutch device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240325 Address after: 1999 Beixin West Road, Jinghe Street, Tengzhou City, Zaozhuang City, Shandong Province (within Weida Heavy Industry Institute) Patentee after: Shandong Weida Jinggong Intelligent Equipment Co.,Ltd. Country or region after: China Address before: 277500 Shandong city of Zaozhuang province Tengzhou City Hengyuan Economic Development Zone, Road No. 1188 Patentee before: SHANDONG WEIDA HEAVY INDUSTRIES Co.,Ltd. Country or region before: China |