CN203730669U - Secondary gearbox for machine tool - Google Patents
Secondary gearbox for machine tool Download PDFInfo
- Publication number
- CN203730669U CN203730669U CN201420075442.8U CN201420075442U CN203730669U CN 203730669 U CN203730669 U CN 203730669U CN 201420075442 U CN201420075442 U CN 201420075442U CN 203730669 U CN203730669 U CN 203730669U
- Authority
- CN
- China
- Prior art keywords
- machine tool
- small gear
- gearwheel
- piston rod
- main shaft
- 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.)
- Expired - Fee Related
Links
Abstract
The utility model provides a secondary gearbox for a machine tool. The secondary gearbox for the machine tool belongs to the field of mechanical technology, and solves the problems that existing machine tool gearboxes are low in automation level and not accurate in shifts. The secondary gearbox for the machine tool comprises a box body, a main shaft and a middle transition shaft, wherein the main shaft and the middle transition shaft are run through on the box body, a big gear 1 and a small gear 1 are fixedly connected on the middle transition shaft in the peripheral direction, the main shaft is fixedly connected with a big gear 2 and a small gear 2, the box body is fixedly connected with a hydraulic cylinder, a piston rod of the hydraulic cylinder stretches into the box body and is fixedly connected with a shifting fork, the big gear 1 is clamped in the shifting fork, and the big gear 1 and the small gear 2 are engaged with each other or the small gear 1 and the big gear 2 are engaged with each other when the piston rod drives the shifting fork to move. The secondary gearbox for the machine tool has the advantages of high automation level and accurate and steady shifting and the like.
Description
Technical field
The utility model belongs to field of mechanical technique, relates to a kind of gearbox, particularly a kind of two-stage transmission for machine tool.
Background technique
Lathe gearbox is transmission part important in lathe, and it can be contained in parts that form lathe in a casing individually, also can jointly be contained in a casing with other mechanisms.It falls machine motor and machine tool chief axis links up, and falls power and moment of torsion and is delivered to main shaft by motor, thereby main shaft is rotated with operative workpiece.Its Main Function is to regulate spindle speed and moment of torsion by speed change gear, thereby makes motor operate in best state.
And existing two-stage transmission complex structure is imported product mostly, expensive, and volume is larger, is unfavorable for being arranged on the lathe of compact structure.
Summary of the invention
The purpose of this utility model is for the above-mentioned problems in the prior art, provides a kind of simple in structure, the accurately reliable two-stage transmission for machine tool of gearshift.
The purpose of this utility model can realize by following technical proposal: a kind of two-stage transmission for machine tool, it is characterized in that, this two-stage transmission for machine tool comprises casing, main shaft and middle transition axle, described main shaft and middle transition axle are all arranged on casing, on described middle transition axle, be circumferentially fixed with gearwheel one and small gear one composition, on described main shaft, be fixed with gearwheel two and small gear two, on described casing, be fixed with oil hydraulic cylinder, the piston rod of described oil hydraulic cylinder stretches in casing and is connected mutually with a shift fork, described gearwheel one snaps in shift fork, gearwheel one described in after piston rod drives shift fork motion is meshed with small gear two or small gear one is meshed with gearwheel two.
The two-stage transmission that this lathe is used, drive shift fork to move along feather key by piston rod, shift fork drives the duplicate gear being made up of gearwheel one and small gear one, in the time that piston rod slides left, small gear one is meshed with gearwheel two, and in the time that piston rod slides to the right, gearwheel one is meshed with small gear two, thereby realize gearshift, the rotating speed of machine tool chief axis is changed.
In above-mentioned a kind of two-stage transmission for machine tool, described small gear one has axially extended sleeve part, and described gearwheel one is circumferentially fixed on described sleeve part.
In above-mentioned a kind of two-stage transmission for machine tool, the feather key that is fixed with bulk in described casing and be arranged in parallel with piston rod, described shift fork has the draw-in groove that snaps in feather key.
Compared with prior art, the two-stage transmission that this lathe is used drives shift fork to move along feather key by piston rod, shift fork drives the duplicate gear being made up of gearwheel one and small gear one, in the time that piston rod slides left, small gear one is meshed with gearwheel two, in the time that piston rod slides to the right, gearwheel one is meshed with small gear two, thereby realize gearshift, its gear shifting structure has improved automatization level, and gear shift is reliable.
Brief description of the drawings
Fig. 1 is the sectional structure schematic diagram of this two-stage transmission for machine tool.
Fig. 2 is the structural representation in A-A cross section in Fig. 1.
Fig. 3 is the structural representation in B-B cross section in Fig. 1.
In figure, 1, casing; 2, main shaft; 3, middle transition axle; 4, gearwheel one; 5, small gear one; 6, gearwheel two; 7, small gear two; 8, oil hydraulic cylinder; 9, piston rod; 10, shift fork; 11, sleeve part; 12, feather key; 13, draw-in groove.
Embodiment
Be below specific embodiment of the utility model by reference to the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiments.
As Fig. 1, shown in Fig. 2 and Fig. 3, this two-stage transmission for machine tool comprises casing 1, main shaft 2 and middle transition axle 3, main shaft 2 and middle transition axle 3 are all arranged on casing 1, on middle transition axle 3, be circumferentially fixed with gearwheel 1 and small gear one 5 compositions, on main shaft 2, be fixed with gearwheel 26 and small gear 27, on casing 1, be fixed with oil hydraulic cylinder 8, the piston rod 9 of oil hydraulic cylinder 8 stretches in casing 1 and is connected mutually with a shift fork 10, gearwheel 1 snaps in shift fork 10, gearwheel 1 described in after piston rod 9 drives shift fork 10 motions is meshed with small gear 27 or small gear 1 is meshed with gearwheel 26.
The feather key 12 that is fixed with bulk in casing 1 and be arranged in parallel with piston rod 9, shift fork 10 has the draw-in groove 13 that snaps in feather key 12, piston rod 9 drives shift fork 10 to move along feather key 12, and it is more stable that the setting of feather key 12 makes that shift fork 10 moves, thereby make gearbox shifting accurate.
Specific embodiment described herein is only to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various amendments or supplements or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Although more used the terms such as casing 1, main shaft 2, middle transition axle 3, gearwheel 1, small gear 1, gearwheel 26, small gear 27, oil hydraulic cylinder 8, piston rod 9, shift fork 10, sleeve part 11, feather key 12, draw-in groove 13 herein, do not got rid of the possibility that uses other term.Use these terms to be only used to describe more easily and explain essence of the present utility model; They are construed to any additional restriction is all contrary with the utility model spirit.
Claims (3)
1. a two-stage transmission for machine tool, it is characterized in that, this two-stage transmission for machine tool comprises casing (1), main shaft (2) and middle transition axle (3), described main shaft (2) and middle transition axle (3) are all arranged on casing (1), on described middle transition axle (3), be circumferentially fixed with gearwheel one (4) and small gear one (5) composition, on described main shaft (2), be fixed with gearwheel two (6) and small gear two (7), on described casing (1), be fixed with oil hydraulic cylinder (8), the piston rod (9) of described oil hydraulic cylinder (8) stretches in casing (1) and is connected mutually with a shift fork (10), described gearwheel one (4) snaps in shift fork (10), gearwheel one (4) described in after piston rod (9) drives shift fork (10) motion is meshed with small gear two (7) or small gear one (5) is meshed with gearwheel two (6).
2. a kind of two-stage transmission for machine tool according to claim 1, is characterized in that, described small gear one (5) has axially extended sleeve part (11), and described gearwheel one (4) is circumferentially fixed on described sleeve part (11).
3. a kind of two-stage transmission for machine tool according to claim 1 and 2, it is characterized in that, the feather key (12) that is fixed with bulk in described casing (1) and be arranged in parallel with piston rod (9), described shift fork (10) has the draw-in groove (13) that snaps in feather key (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420075442.8U CN203730669U (en) | 2014-02-21 | 2014-02-21 | Secondary gearbox for machine tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420075442.8U CN203730669U (en) | 2014-02-21 | 2014-02-21 | Secondary gearbox for machine tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203730669U true CN203730669U (en) | 2014-07-23 |
Family
ID=51200747
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420075442.8U Expired - Fee Related CN203730669U (en) | 2014-02-21 | 2014-02-21 | Secondary gearbox for machine tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203730669U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106493598A (en) * | 2016-11-04 | 2017-03-15 | 安徽池州家用机床股份有限公司 | A kind of high weathering zone round cut changing device |
| CN106838140A (en) * | 2017-03-27 | 2017-06-13 | 深圳市创智自动化有限公司 | A kind of new manual transmission |
-
2014
- 2014-02-21 CN CN201420075442.8U patent/CN203730669U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106493598A (en) * | 2016-11-04 | 2017-03-15 | 安徽池州家用机床股份有限公司 | A kind of high weathering zone round cut changing device |
| CN106838140A (en) * | 2017-03-27 | 2017-06-13 | 深圳市创智自动化有限公司 | A kind of new manual transmission |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20140723 Termination date: 20210221 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |