CN202646552U - Gear speed changing box with large speed ratio - Google Patents
Gear speed changing box with large speed ratio Download PDFInfo
- Publication number
- CN202646552U CN202646552U CN 201220263170 CN201220263170U CN202646552U CN 202646552 U CN202646552 U CN 202646552U CN 201220263170 CN201220263170 CN 201220263170 CN 201220263170 U CN201220263170 U CN 201220263170U CN 202646552 U CN202646552 U CN 202646552U
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- gear
- output shaft
- sliding sleeve
- speed ratio
- straight
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Abstract
The utility model relates to a gear speed changing box with large speed ratio. The gear speed changing box with large speed ratio comprises a box body, an input main shaft and an output shaft, the gear speed changing box with large speed ratio is characterized in that the input main shaft is fixedly connected with a straight tooth gear, the straight tooth gear is engaged with a sliding straight tooth gear, the sliding straight tooth gear is sleeved at a central position where a left short shaft is opposite to a right short shaft, a bevel gear is fixedly mounted at a far end of the short shaft, a gear is fixedly mounted at a far end of the other short shaft; electromagnetic chucks are respectively arranged at the middle parts of the two short shafts, and connected with the short shafts by bearings; electromagnetic suction rings are arranged at the two end surfaces of the sliding straight tooth gear, the outer sides of a sliding sleeve are connected by the sliding straight tooth gear, convex gears and inwardly concave tooth sockets are arranged on the end surfaces of the sliding sleeve and the gear sleeved on the output shaft, wherein the end surfaces of the sliding sleeve and the gear are opposite; a worm wheel is sleeved at the lower part of the output shaft, and convex gears and inwardly concaved tooth sockets are arranged on the end surfaces of the worm wheel and the sliding sleeve, wherein the end surfaces of the worm wheel and the sliding sleeve are opposite. The gear speed changing box with large speed ratio disclosed by the utility model has the advantages of realization of large speed ratio speed change, simple structure and precise transmission.
Description
Technical field
The utility model relates to a kind of speed-changing gear box, particularly a kind of large speed ratio gear gearbox.
Background technique
The anchor clamps of holding workpiece on the present large-size numerical control machine, need to the workpiece of clamping be rotated, in order to workpiece is processed, when the clamping workpiece is thinner major axis, if when carrying out lathe grinding, just need rotating speed very fast, and when the clamping workpiece be than unskilled workman's part, and be that workpiece surface is added man-hour with milling cutter, just need workpiece to rotate with extremely slow rotational velocity, sometimes need even dozens of minutes to rotate a circle to a few hours, the motor that then drives gripping head will have large gear ratio, but present motor generally can't reach so speed change, therefore can only be to adopt speed-changing gear box to realize the speed change of large speed ratio, if but adopt common flat tooth to carry out speed change, then the diameter of gear will be very large than again, and can't carry out precision manufacturing, therefore demand designing novel large speed ratio gear gearbox urgently.
Summary of the invention
The purpose of this utility model is to solve existing the problems referred to above of large speed ratio gear gearbox in the prior art, and a kind of large speed ratio gear gearbox is provided.The utility model designs a kind of large speed ratio gear gearbox, comprise casing, entering spindle, output shaft, it is characterized in that: be fixedly connected with a straight-tooth gear on the entering spindle, straight-tooth gear is engaged with a slip straight-tooth gear, on the central position that two minor axises were relative about the slip straight-tooth gear was sleeved on, the far-end of a minor axis is installed with a umbrella gear, the far-end of another root minor axis is installed with a gear, two minor axis middle parts all are equipped with an electromagnetic chuck, electromagnetic chuck is connected with minor axis by bearing, all there is electromagnetism to inhale ring on the both ends of the surface of slip straight-tooth gear, slip straight-tooth gear axis hole place offers keyway, be equipped with corresponding key at two minor axises, be sleeved on the gear engagement of output shaft upper end portion at the hard-wired gear of the far-end of a minor axis and, output shaft middle part at the front end of gear is equipped with a sliding sleeve, offer keyway on the sliding sleeve axis hole, the key of installing on keyway and the output shaft is relative, the sliding sleeve outer side surface is slidingly connected by the slip straight-tooth gear, be provided with the teeth groove of convex gear and indent at the sliding sleeve separately end face relative with gear on being sleeved on output shaft, be set with worm gear in the output shaft bottom, be provided with the teeth groove of convex gear and indent on the worm gear separately end face relative with sliding sleeve, worm gear and a worm meshing, the top of worm screw is a umbrella gear, the hard-wired umbrella gear engagement of the far-end of umbrella gear and minor axis.It is characterized in that: entering spindle, output shaft and two minor axises are parallel to each other.The utility model has the advantages that and realize the large speed ratio speed change, and simple in structure, transmission precision.
Description of drawings
Accompanying drawing 1 is structural profile schematic representation of the present utility model.
Embodiment
During use, velocity ratio when the large rotating speed of needs, then utilize controller, the electromagnetism of the both ends of the surface of slip straight-tooth gear is inhaled ring 11 be arranged to upper slip, the electric polarity of inhaling ring 11 upper ends at electromagnetism exactly and the far-end of minor axis are installed with the opposite sex that the electrode of the electromagnetic chuck 9 of a gear 8 is arranged to inhale mutually, and be installed with the same sex that the electrode of the electromagnetic chuck 9 of a umbrella gear 7 is arranged to repel each other at the far-end that electromagnetism is inhaled the electric polarity of ring 11 lower ends and minor axis, so, slip straight-tooth gear 5 is a minor axis above the engagement just, thereby driven gear 8 rotates, while moving upward along with slip straight-tooth gear 5, the sliding sleeve 15 that install at output shaft 3 middle parts is upward sliding also, the convex gear 18 of sliding sleeve 15 and 19 engagements of the teeth groove of the indent of the gear 14 that is sleeved on the output shaft upper end portion, thereby gear 8 also drives sliding sleeve 15 and rotates, and sliding sleeve 15 is by key 17 transmissions of installing on keyway 16 and the output shaft, driving output shaft 3 rotates, because whole transmission does not have large speed ratio to change, therefore, substantially be according to the rotation of external motor with rotating speed faster from output shaft 3 outputs.
And when needing the transmission of large reduction of speed ratio, then utilize controller, the electromagnetism of the both ends of the surface of slip straight-tooth gear is inhaled ring 11 be arranged to lower slider, the electrode that the electric polarity of inhaling ring 11 upper ends at electromagnetism exactly and the far-end of minor axis are installed with the electromagnetic chuck 9 of a gear 8 be arranged to the to repel each other same sex of suction, and the far-end of the electric polarity of inhaling ring 11 lower ends at electromagnetism and minor axis is installed with the opposite sex that the electrode of the electromagnetic chuck 9 of a umbrella gear 7 is arranged to inhale mutually, so, slip straight-tooth gear 5 is a following minor axis of engagement just, thereby driving umbrella gear 7 rotates, while moving downward along with slip straight-tooth gear 5, the sliding sleeve 15 that install at output shaft 3 middle parts is down sliding also, the convex gear 21 of sliding sleeve 15 and 22 engagements of the teeth groove of the indent of the worm gear 20 that is sleeved on the output shaft bottom, thereby umbrella gear 7 drives umbrella gear 24 and rotates, umbrella gear 24 drives worm screw 23 again and rotates, worm screw 23 meshes worm gear 20 again and rotates, because worm screw 23, the transmission of worm gear 20, worm screw 23 is rotated a circle, worm gear 20 rotates a tooth, can greatly reduce rotational velocity, worm gear 20 drives sliding sleeve 15 again and rotates, and sliding sleeve 15 is by key 17 transmissions of installing on keyway 16 and the output shaft, driving output shaft 3 rotates, because whole transmission is by worm screw 23, the transmission of worm gear 20, therefore there is great speed ratio to change, therefore, can realize output shaft 3 outputs of slow rotation.
Claims (2)
1. large speed ratio gear gearbox, comprise casing, entering spindle, output shaft, it is characterized in that: be fixedly connected with a straight-tooth gear on the entering spindle, straight-tooth gear is engaged with a slip straight-tooth gear, on the central position that two minor axises were relative about the slip straight-tooth gear was sleeved on, the far-end of a minor axis is installed with a umbrella gear, the far-end of another root minor axis is installed with a gear, two minor axis middle parts all are equipped with an electromagnetic chuck, electromagnetic chuck is connected with minor axis by bearing, all there is electromagnetism to inhale ring on the both ends of the surface of slip straight-tooth gear, slip straight-tooth gear axis hole place offers keyway, be equipped with corresponding key at two minor axises, be sleeved on the gear engagement of output shaft upper end portion at the hard-wired gear of the far-end of a minor axis and, output shaft middle part at the front end of gear is equipped with a sliding sleeve, offer keyway on the sliding sleeve axis hole, the key of installing on keyway and the output shaft is relative, the sliding sleeve outer side surface is slidingly connected by the slip straight-tooth gear, be provided with the teeth groove of convex gear and indent at the sliding sleeve separately end face relative with gear on being sleeved on output shaft, be set with worm gear in the output shaft bottom, be provided with the teeth groove of convex gear and indent on the worm gear separately end face relative with sliding sleeve, worm gear and a worm meshing, the top of worm screw is a umbrella gear, the hard-wired umbrella gear engagement of the far-end of umbrella gear and minor axis.
2. by a kind of large speed ratio gear gearbox claimed in claim 1, it is characterized in that: entering spindle, output shaft and two minor axises are parallel to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220263170 CN202646552U (en) | 2012-06-06 | 2012-06-06 | Gear speed changing box with large speed ratio |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220263170 CN202646552U (en) | 2012-06-06 | 2012-06-06 | Gear speed changing box with large speed ratio |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202646552U true CN202646552U (en) | 2013-01-02 |
Family
ID=47415662
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220263170 Expired - Lifetime CN202646552U (en) | 2012-06-06 | 2012-06-06 | Gear speed changing box with large speed ratio |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202646552U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103527727A (en) * | 2013-10-23 | 2014-01-22 | 厦门市文忠不锈钢制品有限公司 | Speed change gear box |
| CN104343534A (en) * | 2014-10-30 | 2015-02-11 | 魏伯卿 | Combination of cylinder groups with different work volumes of engine |
-
2012
- 2012-06-06 CN CN 201220263170 patent/CN202646552U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103527727A (en) * | 2013-10-23 | 2014-01-22 | 厦门市文忠不锈钢制品有限公司 | Speed change gear box |
| CN103527727B (en) * | 2013-10-23 | 2016-01-06 | 厦门市文忠不锈钢制品有限公司 | Speed-change gear box |
| CN104343534A (en) * | 2014-10-30 | 2015-02-11 | 魏伯卿 | Combination of cylinder groups with different work volumes of engine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130102 |
|
| CX01 | Expiry of patent term |