CN203404319U - Speed change mechanism - Google Patents
Speed change mechanism Download PDFInfo
- Publication number
- CN203404319U CN203404319U CN201320489247.5U CN201320489247U CN203404319U CN 203404319 U CN203404319 U CN 203404319U CN 201320489247 U CN201320489247 U CN 201320489247U CN 203404319 U CN203404319 U CN 203404319U
- Authority
- CN
- China
- Prior art keywords
- gear
- gearshift
- driven shaft
- driving shaft
- triple
- 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
- 238000005096 rolling process Methods 0.000 claims abstract description 5
- 238000000034 method Methods 0.000 claims description 2
- 239000010720 hydraulic oil Substances 0.000 abstract 7
- 239000003921 oil Substances 0.000 abstract 1
- 238000007789 sealing Methods 0.000 abstract 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
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- Gear Transmission (AREA)
Abstract
The utility model provides a speed change mechanism which is used for effectively overcoming the shortages existing in the prior art. The speed change mechanism is composed of a motor and a gearbox and is characterized in that the motor is fixed to the gearbox, a driving shaft is connected with the motor, a first driving shaft gear, a second driving shaft gear and a third driving shaft gear are fixed to the driving shaft, the driving shaft gears are arranged in the gearbox, a driven shaft gear is arranged on a driven shaft, a shifting triple gear is arranged on the driven shaft, one end of a piston pull rod of a shifting hydraulic oil cylinder is connected with the shifting triple gear through a triple gear connecting hinge pin and a triple gear connecting pin check ring, the other end of the piston pull rod of the shifting hydraulic oil cylinder is connected with a hydraulic oil cylinder piston through a rolling bearing, a hydraulic oil cylinder piston pull rod block check ring and a piston sealing cover, the shifting hydraulic oil cylinder is fixed to the gearbox, a piston guide screw is arranged on the shifting hydraulic oil cylinder, an open groove is formed in the hydraulic oil cylinder piston, the shifting triple gear is pulled in a matched mode along the piston guide screw and a shifting oil cylinder electromagnetic locating device, so that speed change of a high gear, a medium gear and a low gear is conducted, the requirements for speed change of the high gear, the medium gear and the low gear are satisfied, and a shifting fork and a supporting wheel in the prior art are omitted.
Description
Technical field
The utility model relates to a kind of gear, is applied to lathe and other machinery industry variable speed drive.
Background technique
At present, known gear is generally that common electric machine is directly connected with variable-speed motor, can keep off by manual many quick changes, numerical control machine tool is not generally shifted gears now, more advanced can only high and low two gears, there is no conventional middling speed and gear shift fork support roller quick abrasion, while using especially, fault is more.Also, because there is no high, medium and low three class gear shift machine, slewing range is little, large in bite especially, can not meet processing request while needing low-speed big.If strengthen two grades of speed ratios, meet high pulling torque and high rotating speed, just there is no conventional intermediate cut torsion and speed.
Summary of the invention
The purpose of this utility model is to provide a kind of gear, in order to effectively to overcome existing above-mentioned deficiency in prior art.The purpose of this utility model is to improve on the basis of existing technology realization.It is comprised of motor and gearbox, it is characterized in that motor is fixed on gearbox, driving shaft is connected with motor, the first driving shaft gear in gearbox, the second driving shaft gear and the 3rd driving shaft gear are fixed on driving shaft, driven shaft gear is contained on driven shaft, gearshift triple gear is contained on driven shaft, gearshift hydraulic cylinder piston pull bar one end connects bearing pin by triple gear and triple gear connecting pin retaining back-up ring is connected with gearshift triple gear, the gearshift hydraulic cylinder piston pull bar the other end passes through rolling bearing, hydraulic cylinder piston pull bar fixture block back-up ring and piston capping are connected with hydraulic cylinder piston, gearshift hydraulic jack is fixed on gearbox, piston guide screw is contained on gearshift hydraulic jack, hydraulic cylinder piston is provided with opening slot, along piston guide screw, coordinate with shift cylinder electromagnetic locator and pull gearshift triple gear to carry out height, in, low three class gear shift, thereby met the height of gear, in, low three class gear shift demand, and original selector fork and support roller have been saved, utilize mesopore gearshift location, without wearing and tearing.
Driven shaft intermediate portion is the splined shaft of longitudinal opening.
Driven shaft gear end is provided with internal gear, and coordinates with driven shaft after the small gear engagement by gearshift triple gear one end, drives driven shaft to transmit torsion and rotating speed.
Gearshift hydraulic cylinder piston pull bar is placed in driven shaft inside, can move forward and backward and rotate with driven shaft.
The beneficial effects of the utility model are no longer with gear shift fork and support roller, to increase middling speed, and third gear adds stepless change, is the state-of-the-art variable-speed motor in the current world, and its slewing range is large, can realize high, medium and low gearshift.Not only be applicable to various numerical control machine tools, and can also meet other NC heavy mechanical speed change needs.
Accompanying drawing explanation
Fig. 1 is plan view of the present utility model.
Fig. 2 is top view of the present utility model.
Fig. 3 is the utility model partial sectional view.
Fig. 4 is the comprehensive sectional view of the utility model.
Embodiment
Accompanying drawing has provided specific embodiment of the utility model.
Embodiment: according to Fig. 1, Fig. 2, shown in Fig. 3 and Fig. 4, the 1st, motor, the 2nd, gearbox, the 3rd, driving shaft, 4 is first driving gears, 5 is second driving gears, 6 is the 3rd driving gears, the 7th, driven shaft, the 8th, gearshift triple gear, the 9th, triple gear connects bearing pin, the 10th, triple gear connecting pin retaining back-up ring, the 11st, driven shaft gear, the 12nd, gearshift hydraulic cylinder piston pull bar, the 13rd, piston capping, the 14th, rolling bearing, the 15th, hydraulic cylinder piston pull bar fixture block back-up ring, the 16th, shift cylinder electromagnetic locator, the 17th, piston guide screw, the 18th, hydraulic cylinder piston, the 19th, gearshift hydraulic jack, the 20th, small gear, the 21st, internal gear.Motor 1 is fixed on gearbox 2, driving shaft 3 is connected with motor 1, the first driving shaft gear 4 in gearbox 2, the second driving shaft gear 5 and the 3rd driving shaft gear 6 are fixed on driving shaft 3, driven shaft gear 11 is contained on driven shaft 7, gearshift triple gear 8 is contained on driven shaft 7, gearshift hydraulic cylinder piston pull bar 12 one end connect bearing pin 9 by triple gear and triple gear connecting pin retaining back-up ring 10 is connected with gearshift triple gear 8, gearshift hydraulic cylinder piston pull bar 12 the other ends are by rolling bearing 14, hydraulic cylinder piston pull bar fixture block back-up ring 15 and piston capping 13 are connected with hydraulic cylinder piston 18, gearshift hydraulic jack 19 is fixed on gearbox 2, piston guide screw 17 is contained on gearshift hydraulic jack 19, hydraulic cylinder piston 18 is provided with opening slot, along piston guide screw 17, coordinate with shift cylinder electromagnetic locator 16 and pull gearshift triple gear 8 to carry out height, in, low three class gear shift.And saved original selector fork and support roller, utilize mesopore gearshift location, without wearing and tearing.
Small gear 20 on gearshift triple gear 8 coordinates with the internal gear 21 on driven shaft gear 11, and when the 3rd driving gear 6 is with driven shaft gear 11 engagement, gear is in low-speed big state; When gearshift triple gear 8 and the second driving gear 5 engagement, gear is torque condition in middling speed; When gearshift triple gear 8 meshes with the first driving gear 4, gear is in the little torque condition of high speed, thereby met the high, medium and low three class gear shift demand of gear.
Claims (4)
1. a gear, it is comprised of motor (1) and gearbox (2), it is characterized in that motor (1) is fixed on gearbox (2), driving shaft (3) is connected with motor (1), the first driving shaft gear (4) in gearbox (2), the second driving shaft gear (5) and the 3rd driving shaft gear (6) are fixed on driving shaft (3), driven shaft gear (11) is contained on driven shaft (7), gearshift triple gear (8) is contained on driven shaft (7), gearshift hydraulic cylinder piston pull bar (12) one end connects bearing pin (9) by triple gear and triple gear connecting pin retaining back-up ring (10) is connected with gearshift triple gear (8), gearshift hydraulic cylinder piston pull bar (12) the other end is by rolling bearing (14), hydraulic cylinder piston pull bar fixture block back-up ring (15) and piston capping (13) are connected with hydraulic cylinder piston (18), gearshift hydraulic jack (19) is fixed on gearbox (2), piston guide screw (17) is contained on gearshift hydraulic jack (19), hydraulic cylinder piston (18) is provided with opening slot, along piston guide screw (17), coordinate with shift cylinder electromagnetic locator (16) and pull gearshift triple gear (8) to carry out height, in, low three class gear shift, thereby met the height of lathe, in, low three class gear shift process requirements, and original selector fork and support roller have been saved, utilize mesopore gearshift location, without wearing and tearing.
2. gear according to claim 1, is characterized in that the splined shaft that said driven shaft (7) intermediate portion is longitudinal opening.
3. gear according to claim 1, it is characterized in that said driven shaft gear (11) end is provided with internal gear (21), and coordinate with driven shaft (7) after small gear (20) engagement by gearshift triple gear (8) one end, drive driven shaft (7) to transmit torsion and rotating speed.
4. gear according to claim 1, is characterized in that said gearshift hydraulic cylinder piston pull bar (12) is placed in driven shaft (7) inside, can move forward and backward and rotate with driven shaft (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320489247.5U CN203404319U (en) | 2013-08-12 | 2013-08-12 | Speed change mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320489247.5U CN203404319U (en) | 2013-08-12 | 2013-08-12 | Speed change mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203404319U true CN203404319U (en) | 2014-01-22 |
Family
ID=49940256
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320489247.5U Expired - Fee Related CN203404319U (en) | 2013-08-12 | 2013-08-12 | Speed change mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203404319U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015021742A1 (en) * | 2013-08-12 | 2015-02-19 | 山东义信重机制造有限公司 | Gear change mechanism |
| CN111765220A (en) * | 2020-06-03 | 2020-10-13 | 浙江日发精密机床有限公司 | Three-speed gear box structure |
-
2013
- 2013-08-12 CN CN201320489247.5U patent/CN203404319U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015021742A1 (en) * | 2013-08-12 | 2015-02-19 | 山东义信重机制造有限公司 | Gear change mechanism |
| CN111765220A (en) * | 2020-06-03 | 2020-10-13 | 浙江日发精密机床有限公司 | Three-speed gear box structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20150311 Granted publication date: 20140122 |
|
| RINS | Preservation of patent right or utility model and its discharge | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20160311 Granted publication date: 20140122 |
|
| PP01 | Preservation of patent right |
Effective date of registration: 20160311 Granted publication date: 20140122 |
|
| RINS | Preservation of patent right or utility model and its discharge | ||
| PD01 | Discharge of preservation of patent | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20180311 Granted publication date: 20140122 |
|
| PP01 | Preservation of patent right |
Effective date of registration: 20180311 Granted publication date: 20140122 |
|
| PP01 | Preservation of patent right | ||
| PD01 | Discharge of preservation of patent | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20200311 Granted publication date: 20140122 |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140122 Termination date: 20190812 |