CN202388295U - Main variable-speed control device for miller - Google Patents
Main variable-speed control device for miller Download PDFInfo
- Publication number
- CN202388295U CN202388295U CN2011205072296U CN201120507229U CN202388295U CN 202388295 U CN202388295 U CN 202388295U CN 2011205072296 U CN2011205072296 U CN 2011205072296U CN 201120507229 U CN201120507229 U CN 201120507229U CN 202388295 U CN202388295 U CN 202388295U
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- CN
- China
- Prior art keywords
- ratch
- speed
- gear
- speed change
- bevel gear
- Prior art date
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- Expired - Fee Related
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Abstract
The utility model discloses a main variable-speed control device for a miller. A speed selecting disk is arranged on a shell and is connected with a first bevel gear through a shaft, the first bevel gear is meshed with a second bevel gear, the second bevel gear is connected with a hole disk through a driving shaft, a plurality of first through holes and second through holes are arranged on the hole disk, one end provided with a stepped shaft of a first variable-speed toothed bar and one end provided with a stepped shaft of a second variable-speed toothed bar are inserted into the first through holes or the second through holes respectively, the first variable-speed toothed bar and the second variable-speed toothed bar are meshed with a driving gear, the first variable-speed toothed bar is connected with a triple sliding gear through a shifting fork, a hole disk shifting fork is arranged on the driving shaft, one end of the hole disk shifting fork is connected with a toothed bar, the toothed bar is meshed with a sector gear, and the sector gear is connected with a control handle through a pin. The main variable-speed control device for the miller has the advantages of simple structure and easiness in operation.
Description
Technical field
The utility model relates to the Machining Technology field, is specifically related to a kind of milling machine main speed changing poaptor.
Background technology
In the process that the employing milling machine is processed, need operate the transformation of speed of milling machine usually, so that milling machine obtains different rotating speed.For existing gear controller; It is the axle axial displacement that makes three shifting slide gears through multilevel gear drive mechanism; Drive three shifting slide gears and move axially, thereby pass through meshing of three shifting slide gears, obtain different output speeds in different working position and output gear.Because the structure of multilevel gear drive mechanism is not only complicated, require great effort very much during operation, and cost is high.
Summary of the invention
The purpose of the utility model provides a kind of simple in structure, light milling machine main speed changing poaptor of operation, simultaneously, the utlity model has the low advantage of cost.
The milling machine main speed changing poaptor; Choosing speed dish is arranged on the housing; Choosing speed dish is connected with first bevel gear through axle, first bevel gear and the engagement of second bevel gear, and second bevel gear is connected with a porose disc through power transmission shaft; This porose disc is provided with several first through holes and second through hole; The end that the first speed change ratch and the second speed change ratch are provided with multidiameter is inserted into respectively in first through hole or second through hole, the first speed change ratch and the second speed change ratch and a travelling gear engagement, and the first speed change ratch is connected with three shifting slide gears through shift fork; On said power transmission shaft, be provided with the porose disc shift fork, an end of this porose disc shift fork is connected with a ratch, this ratch and a sector gear engagement, and sector gear is connected with control crank through bearing pin.
Adopted such scheme, when needing speed change, switching left after handle depressed through the rotation of sector gear, drives ratch and moves right with the porose disc shift fork, and porose disc is moved right with it, breaks away from the first speed change ratch and the second speed change ratch.Rotate choosing speed dish then, confirm that needed rotating speed is corresponding with arrow labeled 18 grades of rotating speeds on selecting the speed dish,, the bevel gear that is fixed on its end is rotated, drive bevel gear and rotate, thereby make porose disc also turn to a certain position thereupon through rotating choosing speed dish.Again handle is removed to original position,, porose disc is moved to the left slippages through sector gear, ratch and shift fork.Since on the porose disc position of respective aperture with vary in size; Effect through the ladder pin on the first speed change ratch and the second speed change ratch; Just can make the first speed change ratch and the second speed change ratch correspondingly do certain moving axially; Promote shift fork, three shifting slide gears are shifted one's position, to reach the purpose of conversion rotating speed.
The structure of the utility model is comparatively simple, when needing conversion rate, only needs that control crank is applied less turning power and can carry out variable speed operation.
Description of drawings
Fig. 1 is the structural representation of the utility model;
In the accompanying drawing, 1 is shift fork, and 2 is the first speed change ratch, and 2a is three shifting slide gears, and 3 is travelling gear, and 4 is the second speed change ratch; 5 is porose disc, and 5a is first through hole, and 5b is second through hole, and 6 is the porose disc shift fork, and 7 are the impulsion switch; 8 is control crank, and 9 is push rod, and 10 is projection, and 11 are choosing speed dish, and 11a is an axle; 12 is first bevel gear, and 13 is the engagement of second bevel gear, and 13a is a power transmission shaft, and 14 is ratch, and 15 is sector gear.
The specific embodiment
With reference to Fig. 1; The milling machine main speed changing poaptor of the utility model, choosing speed dish 11 is arranged on the housing, and choosing speed dish is connected with first bevel gear 12 through axle 11a; First bevel gear 12 and second bevel gear engagement 13; Second bevel gear 13 is connected with a porose disc 5 through power transmission shaft 13a, and this porose disc 5 is provided with several the first through hole 5a and the second through hole 5b, and the end that the first speed change ratch 2 and the second speed change ratch 4 are provided with multidiameter is inserted into respectively among the first through hole 5a or the second through hole 5b; The first speed change ratch 2 and the second speed change ratch 4 and travelling gear 3 engagements, the first speed change ratch 2 is connected with three shifting slide gear 2a through shift fork 1.On power transmission shaft 13a, be provided with porose disc shift fork 6, an end of this porose disc shift fork 6 is connected with a ratch 14, this ratch 14 and sector gear 15 engagements, and sector gear 15 is connected with control crank 8 through bearing pin.When speed change is handled,, prevent that tooth from pushing up with tooth mutually, on sector gear 15, be provided with projection 10 in order to protect the smooth joint between gear, an end in contact of this projection 10 and a push rod 9, the other end of this push rod 9 contacts with impulsion switch 7.When moving control crank 8 rotations, projection 9 compressing push rods 9, moment is connected impulsion switch 7; Make initiatively motor instantaneous starting; Drive each instantaneous revolution in the main spindle box, at this moment shifting slide gear is meshed with fixed gear, just the phenomenon that tooth and tooth push up mutually can not occur.The impulsion switch can also work the protective effect that prevents mistake speed change during main axis rotation except that playing above-mentioned effect.If in the process of main axis rotation, pull control crank 8, the projection momentary connections impulsion switch 7 below the sector gear 15, then main motor is braked immediately and is stopped the rotation, and can avoid damaging gear like this.
During speed change, switching left after control crank 8 depressed through the rotation of sector gear 15, drives ratch 14 and moves right with porose disc shift fork 6, and porose disc 5 is moved right with its axle, breaks away from the first speed change ratch 2 and the second speed change ratch 4.Rotate choosing speed dish 11 then; Confirm that needed rotating speed is corresponding with arrow labeled 18 grades of rotating speeds on selecting the speed dish, rotate through rotating choosing speed dish, can make the bevel gear 12 that is fixed on its end; Drive bevel gear 13 and rotate, thereby make porose disc also turn to a certain position thereupon.Again control crank 8 is removed to original position,, porose disc 5 is moved to the left slippages through sector gear 15, ratch 14 and porose disc shift fork 6.Since on the porose disc position of respective aperture with vary in size; Effect through the ladder pin on the first speed change ratch 2 and the second speed change ratch 4; Just can make the first speed change ratch 2 and the second speed change ratch 4 correspondingly do certain moving axially; Promote shift fork, three shifting slide gears are shifted one's position, to reach the purpose of conversion rotating speed.
Claims (2)
1. milling machine main speed changing poaptor; It is characterized in that: choosing speed dish is arranged on the housing; Choosing speed dish is connected with first bevel gear through axle, first bevel gear and the engagement of second bevel gear, and second bevel gear is connected with a porose disc through power transmission shaft; This porose disc is provided with several first through holes and second through hole; The end that the first speed change ratch and the second speed change ratch are provided with multidiameter is inserted into respectively in first through hole or second through hole, the first speed change ratch and the second speed change ratch and a travelling gear engagement, and the first speed change ratch is connected with three shifting slide gears through shift fork; On said power transmission shaft, be provided with the porose disc shift fork, an end of this porose disc shift fork is connected with a ratch, this ratch and a sector gear engagement, and sector gear is connected with control crank through bearing pin.
2. milling machine main speed changing poaptor according to claim 1 is characterized in that: said sector gear is provided with projection, an end in contact of this projection and a push rod, and the other end of this push rod contacts with the impulsion switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205072296U CN202388295U (en) | 2011-12-08 | 2011-12-08 | Main variable-speed control device for miller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205072296U CN202388295U (en) | 2011-12-08 | 2011-12-08 | Main variable-speed control device for miller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202388295U true CN202388295U (en) | 2012-08-22 |
Family
ID=46663247
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205072296U Expired - Fee Related CN202388295U (en) | 2011-12-08 | 2011-12-08 | Main variable-speed control device for miller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202388295U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102490063A (en) * | 2011-12-08 | 2012-06-13 | 常州市新特力工具有限公司 | Main variable speed operating control device for milling machine |
| CN104476297A (en) * | 2014-12-14 | 2015-04-01 | 遵义金惠机械制造有限责任公司 | Lathe head gearbox operation and control mechanism |
-
2011
- 2011-12-08 CN CN2011205072296U patent/CN202388295U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102490063A (en) * | 2011-12-08 | 2012-06-13 | 常州市新特力工具有限公司 | Main variable speed operating control device for milling machine |
| CN104476297A (en) * | 2014-12-14 | 2015-04-01 | 遵义金惠机械制造有限责任公司 | Lathe head gearbox operation and control mechanism |
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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: 20120822 Termination date: 20121208 |