CN115750694A - Cutter frame gear shifting mechanism of large-scale numerical control gear hobbing machine - Google Patents
Cutter frame gear shifting mechanism of large-scale numerical control gear hobbing machine Download PDFInfo
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- CN115750694A CN115750694A CN202211307380.4A CN202211307380A CN115750694A CN 115750694 A CN115750694 A CN 115750694A CN 202211307380 A CN202211307380 A CN 202211307380A CN 115750694 A CN115750694 A CN 115750694A
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- hobbing machine
- gear shifting
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- 230000007246 mechanism Effects 0.000 title claims abstract description 18
- 230000005540 biological transmission Effects 0.000 claims abstract description 7
- 238000007789 sealing Methods 0.000 claims description 23
- 230000008878 coupling Effects 0.000 claims 1
- 238000010168 coupling process Methods 0.000 claims 1
- 238000005859 coupling reaction Methods 0.000 claims 1
- 238000006073 displacement reaction Methods 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 14
- 238000003754 machining Methods 0.000 description 5
- 229910000997 High-speed steel Inorganic materials 0.000 description 4
- 229910045601 alloy Inorganic materials 0.000 description 4
- 239000000956 alloy Substances 0.000 description 4
- 239000010720 hydraulic oil Substances 0.000 description 4
- 238000003801 milling Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Abstract
The invention discloses a cutter frame gear shifting mechanism of a large numerical control gear hobbing machine, and belongs to the technical field of mechanical equipment. The utility model provides a large-scale numerical control gear hobbing machine knife rest gearshift, include the one-level axle with motor output shaft, the epaxial first gear and the second gear that are equipped with of one-level, one-level axle one side is equipped with the integral key shaft, sliding connection has third gear and fourth gear on the integral key shaft, third gear and fourth gear fixed connection, integral key shaft one side is equipped with the subassembly of shifting, the subassembly of shifting can drive third gear and fourth gear and carry out axial displacement along the integral key shaft, thereby change the mode that one-level axle and integral key shaft transmission are connected, the integral key shaft is connected with knife rest spindle drive. The cutter frame gear shifting mechanism of the large-sized numerical control gear hobbing machine has two gears, can stably run under two working conditions of high-efficiency cutting and heavy-load cutting, and the motor always runs in a rated rotating speed range.
Description
Technical Field
The invention belongs to the technical field of mechanical equipment, and particularly relates to a cutter frame gear shifting mechanism of a large-scale numerical control gear hobbing machine.
Background
When a large-scale numerical control gear hobbing machine performs gear hobbing, two working conditions of high-speed efficient cutting and heavy-load cutting exist. When a large-scale numerical control gear hobbing machine carries out high-efficiency cutting machining, a main shaft of a cutter frame of the gear hobbing machine needs to enter a high-speed rotating state; when a large gear hobbing machine carries out heavy-load cutting processing, a main shaft of a cutter frame of the gear hobbing machine needs to enter a low-speed rotating state. However, the tool rest of the traditional large-scale numerical control gear hobbing machine only has one gear, and according to a power torque characteristic curve of a servo motor, when the rotating speed of the motor is greater than the rated rotating speed during high-efficiency cutting processing of the large-scale numerical control gear hobbing machine, the torque of the motor is rapidly reduced, so that the hobbing cutting force is reduced, and the load of a main shaft is increased. The cutter damage is aggravated due to the reduction of cutting force and the increase of the load of the spindle, and the gear on the rotating shaft of the motor runs at a high speed after the rotating speed of the motor is higher than the rated rotating speed, so that the damage of the gear and the bearing is accelerated. When a large-scale numerical control gear hobbing machine carries out heavy-load cutting machining, the rotating speed of a hob is low, machining cutting force is large, and at the moment, because the traditional large-scale numerical control gear hobbing machine only has one gear, the main shaft torque is low, so that the motor load is large, and heavy-load cutting cannot be finished.
Therefore, there is a need for a hob spindle that can be shifted so that a massive alloy indexable hob/milling cutter/solid high speed steel hob can operate stably in both cutting conditions.
Disclosure of Invention
In view of this, the present invention provides a gear shifting mechanism for a tool rest of a large-scale numerically controlled gear hobbing machine. The invention aims to solve the problem that a traditional gear hobbing machine tool rest only has one gear and cannot stably work under two working conditions of efficient cutting and heavy-load cutting.
In order to achieve the above purpose, the invention provides a large-scale numerical control gear hobbing machine knife rest gear shifting mechanism, which comprises a primary shaft, wherein one end of the primary shaft is connected with an output shaft of a motor through a coupler, the other end of the primary shaft is rotationally connected with a gear hobbing machine shell, a first gear and a second gear are fixedly connected with the primary shaft, one side of the primary shaft is provided with a spline shaft rotationally connected with the gear hobbing machine shell, the spline shaft is parallel to the primary shaft, the spline shaft is provided with a third gear and a fourth gear, the third gear is fixedly connected with the fourth gear, splines are arranged in the third gear and the fourth gear, the third gear and the fourth gear are slidably connected with the spline shaft through the splines, the third gear is matched with the first gear, the fourth gear is matched with the second gear, one side of the spline shaft is provided with a gear shifting shaft parallel to the primary shaft, one end of the gear shifting and shifting shaft is slidably connected with a sliding seat fixedly connected with the inner wall of the gear hobbing machine, the other side of the inner wall of the gear hobbing machine is provided with a hydraulic cylinder corresponding to the sliding seat, one end of the hydraulic cylinder far away from the sliding seat is fixedly connected with a joint disc, one end of the gear shifting shaft far away from the sliding seat penetrates through the hydraulic cylinder and the joint disc, a shaft sleeve is arranged at the position of the gear shifting shaft corresponding to the hydraulic cylinder and is fixedly connected with the gear shifting shaft through a pin, the shaft sleeve is in sliding fit with the inner wall of the hydraulic cylinder, the inner cavity of the hydraulic cylinder is divided into a first oil cavity and a second oil cavity by the shaft sleeve, the first oil cavity and the second oil cavity are both connected with a hydraulic pump and a hydraulic control valve, a gear shifting block is fixedly connected with the gear shifting shaft, one side of the gear shifting block close to a fourth gear is provided with a clamping groove, the side edge of the fourth gear is placed in the clamping groove, and the gear shifting block can drive the fourth gear to axially move along a spline shaft, therefore, the mode that the primary shaft is in transmission connection with the spline shaft is changed, the spline shaft is provided with a driving rear-stage gear, and the spline shaft is in transmission connection with the tool rest main shaft through the driving rear-stage gear.
By adopting the technical scheme, when a large-scale numerical control gear hobbing machine needs to carry out efficient cutting processing, the gear shifting shaft and the gear shifting block are controlled to move towards the first gear in a hydraulic driving mode, the gear shifting block abuts against the fourth gear, and the fourth gear is fixedly connected with the third gear so as to drive the third gear to move towards the first gear until the first gear is meshed with the third gear; when a large numerical control gear hobbing machine needs heavy-load cutting machining, the gear shifting shaft and the gear shifting block are controlled to move towards the second gear in a hydraulic driving mode, the gear shifting block props against the fourth gear to move towards the second gear until the second gear is meshed with the fourth gear, then the motor is started to drive the primary shaft, the first gear and the second gear to synchronously rotate, the second gear with the smaller circumference is meshed with the fourth gear with the larger circumference, and then the alloy indexable hobbing cutter/milling cutter/integral high-speed steel hobbing cutter is driven to efficiently cut.
Furthermore, the one end that the sliding seat was kept away from to the selector shaft is equipped with the signal piece, signal piece one side is equipped with low-speed gear sensor and high-speed gear sensor, the selector shaft drives the signal piece and removes when just keeping off the sensor to high-speed, first gear meshes with the third gear mutually, the selector shaft drives the signal piece and removes when just keeping off the sensor to low-speed, the second gear meshes with the fourth gear mutually.
Due to the structural design, the meshing condition of the gear can be directly judged through the signal block, the low-speed gear sensor and the high-speed gear sensor, and the gear meshing device is simple, convenient and visual.
Furthermore, a first sealing ring is arranged at the joint of the hydraulic cylinder and the gear shifting shaft.
Furthermore, a second sealing ring is arranged at the joint of the hydraulic cylinder and the gear hobbing machine shell.
Furthermore, a third sealing ring is arranged at the joint of the shaft sleeve and the inner wall of the hydraulic cylinder.
Furthermore, a fourth sealing ring is arranged at the joint of the flange and the inner wall of the hydraulic cylinder.
Furthermore, a fifth sealing ring is arranged at the joint of the connecting disc and the gear shifting shaft.
Due to the structural design, the sealing performance of the hydraulic cylinder can be improved through the sealing ring, and even if the gear shifting shaft moves back and forth, the hydraulic cylinder, the first oil cavity and the second oil cavity can keep good sealing performance, and the operation is more stable.
Further, the gear shifting block is connected with the gear shifting shaft through a set screw and a fixing screw.
Due to the structural design, the gear shifting block can be stably fixed on the gear shifting shaft.
Further, the third gear is fixedly connected with the fourth gear through a screw.
By the structural design, the third gear and the fourth gear can be stably connected together.
The invention has the beneficial effects that:
the invention provides a cutter frame gear shifting mechanism of a large numerical control gear hobbing machine, which is provided with a primary shaft, a first gear, a second gear, a spline shaft, a third gear, a fourth gear, a hydraulic cylinder, a sliding seat, a gear shifting shaft, a receiving disc, a shaft sleeve and a gear shifting block, wherein the gear shifting is carried out by changing the transmission connection mode of the primary shaft and the spline shaft, so that a main shaft of the cutter frame can enter a high-speed gear for high-efficiency cutting at a high rotating speed and enter a low-speed gear for heavy-load cutting at a low rotating speed; according to the gear hobbing machine knife rest gear shifting mechanism, under two working conditions of efficient cutting and heavy-load cutting, the motor always runs in a rated rotating speed range, and the rated torque range rotates circularly.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention may be realized and attained by the means of the instrumentalities and combinations particularly pointed out hereinafter.
Drawings
FIG. 1 is a front view of a gear shifting mechanism of a knife rest of a large numerical control gear hobbing machine according to the present invention;
FIG. 2 isbase:Sub>A cross-sectional view of section A-A of FIG. 1;
FIG. 3 is a cross-sectional view of section B-B of FIG. 1;
FIG. 4 is a cross-sectional view of section C-C of FIG. 1;
FIG. 5 is a side view of the shift assembly of the present invention;
the reference numbers in the figures are as follows: the gear-hobbing machine comprises a primary shaft 1, a coupler 2, a motor 3, a gear hobbing machine shell 4, a first gear 5, a second gear 6, a spline shaft 7, a third gear 8, a fourth gear 9, a hydraulic cylinder 10, a sliding seat 11, a gear shifting shaft 12, a connecting disc 13, a shaft sleeve 14, a pin 15, a first oil cavity 16, a second oil cavity 17, a gear shifting block 18, a signal block 19, a low-speed gear sensor 20, a high-speed gear sensor 21, a first sealing ring 22, a second sealing ring 23, a third sealing ring 24, a fourth sealing ring 25, a fifth sealing ring 26, a set screw 27, a fixing screw 28 and a driving rear-stage gear 29.
Detailed Description
In order to make the technical solutions, advantages and objects of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the invention without any inventive step, are within the scope of protection of the present application.
As shown in fig. 1-5, the invention provides a cutter frame gear shifting mechanism of a large-scale numerical control gear hobbing machine, which comprises a primary shaft 1, wherein the left end of the primary shaft 1 is fixedly connected with an output shaft of a motor 3 through a coupler 2, the right end of the primary shaft 1 is rotatably connected with a gear hobbing machine shell 4, a first gear 5 and a second gear 6 are fixedly connected on the primary shaft 1, and the diameter of the first gear 5 is larger than that of the second gear 6. One side of the first-level shaft 1 is provided with a spline shaft 7 rotationally connected with the gear hobbing machine shell 4, the spline shaft 7 is parallel to the first-level shaft 1, the spline shaft 7 is provided with a third gear 8 and a fourth gear 9, the fourth gear 9 is larger than the diameter of the third gear 8, splines are arranged in the third gear 8 and the fourth gear 9, the third gear 8 and the fourth gear 9 are in sliding connection with the spline shaft 7 through the splines, and the third gear 8 is fixedly connected with the fourth gear 9 through a screw.
A shift shaft 12 parallel to the primary shaft 1 is arranged on one side of the spline shaft 7, a sliding seat 11 fixedly connected with the inner wall of the hobbing machine is connected to the left end of the shift shaft 12 in a sliding manner, a hydraulic cylinder 10 is installed on the right side of the inner wall of the hobbing machine corresponding to the sliding seat 11, a connecting disc 13 is fixedly connected to the right end of the hydraulic cylinder 10, the right end of the shift shaft 12 penetrates through the hydraulic cylinder 10 and the connecting disc 13, a shaft sleeve 14 is installed on the shift shaft 12 corresponding to the hydraulic cylinder 10, the shaft sleeve 14 is fixedly connected with the shift shaft 12 through a pin 15, the shaft sleeve 14 is in sliding fit with the inner wall of the hydraulic cylinder 10, the inner cavity of the hydraulic cylinder 10 is divided into a first oil cavity 16 and a second oil cavity 17 by the shaft sleeve 14, the first oil cavity 16 and the second oil cavity 17 are both connected with a hydraulic pump and a hydraulic control valve, a shift dial 18 is fixedly connected to the shift shaft 12, the shift dial 18 is connected with the shaft 12 through a set screw 27 and a set screw 28, a clamping groove is formed on one side of the dial 18 close to the fourth gear 9, the side of the fourth gear 9 is placed in a clamping groove, the shifting dial 18 can drive mode that the fourth gear 9 is connected with the first gear 7 and the rear drive spindle 7, and the rear drive gear 7, and the rear drive spindle 6 are connected with the spline shaft 7 in a rear drive mode that the rear drive spindle 6.
A first sealing ring 22 is installed at the joint of the hydraulic cylinder 10 and the gear shifting shaft 12, a second sealing ring 23 is installed at the joint of the hydraulic cylinder 10 and the gear hobbing machine shell 4, a third sealing ring 24 is installed at the joint of the shaft sleeve 14 and the inner wall of the hydraulic cylinder 10, a fourth sealing ring 25 is installed at the joint of the flange 13 and the inner wall of the hydraulic cylinder 10, and a fifth sealing ring 26 is installed at the joint of the flange 13 and the gear shifting shaft 12.
The right end of the gear shifting shaft 12 is provided with a signal block 19, one side of the signal block 19 is provided with a low-speed gear sensor 20 and a high-speed gear sensor 21, when the gear shifting shaft 12 drives the signal block 19 to move to just face the high-speed gear sensor 21, the first gear 5 is just meshed with the third gear 8, when the gear shifting shaft 12 drives the signal block 19 to move to just face the low-speed gear sensor 20, the second gear 6 is just meshed with the fourth gear 9.
When a large-scale numerical control gear hobbing machine needs to carry out efficient cutting machining, the gear shifting assembly is started to drive the third gear 8 and the fourth gear 9 to move towards the first gear 5 along the spline shaft 7, so that the first gear 5 is meshed with the third gear 8, when the first gear 5 is meshed with the third gear 8, the signal block 19 is over against the high-speed gear sensor 21, so that a high-speed gear meshing signal is sent to the numerical control system, then the numerical control system starts the motor 3 to rotate, the motor 3 drives the primary shaft 1, the first gear 5 and the second gear 6 to synchronously rotate, the first gear 5 with a larger circumference is meshed with the third gear 8 with a smaller circumference, so that the spline shaft 7 and the rear-stage gear 29 are driven to rotate at a high speed, and the rear-stage gear 29 is driven to be in transmission connection with the tool rest main shaft, so that the alloy hobbing cutter/milling cutter/integral high-speed steel hobbing cutter is driven to carry out efficient cutting; when a large-scale numerical control gear hobbing machine needs heavy-load cutting, the gear shifting assembly is started to drive the third gear 8 and the fourth gear 9 to move towards the second gear 6 along the spline shaft 7, so that the second gear 6 is meshed with the fourth gear 9, when the second gear 6 is meshed with the fourth gear 9, the signal block 19 is over against the low-speed gear sensor 20, a low-speed gear meshing signal is sent to the numerical control system, then the motor 3 is started to drive the primary shaft 1, the first gear 5 and the second gear 6 to synchronously rotate, the second gear 6 with the smaller circumference is meshed with the fourth gear 9 with the larger circumference, and then the alloy indexable hob/milling cutter/integral high-speed steel hob is driven to carry out high-efficiency cutting.
The process of the gear shift assembly driving the third gear 8 and the fourth gear 9 to move axially along the spline shaft 7 is as follows:
hydraulic oil is injected into a first oil cavity 16 of the hydraulic cylinder 10 through a hydraulic pump and a hydraulic control valve, under the hydraulic action of the hydraulic oil, the shaft sleeve 14 moves rightwards, the gear shifting shaft 12 and the gear shifting block 18 move rightwards synchronously along with the shaft sleeve 14, and the gear shifting block 18 props against the fourth gear 9 to move rightwards until the fourth gear 9 is meshed with the second gear 6; when the third gear 8 needs to be moved leftwards to enable the third gear 8 to be meshed with the first gear 5, hydraulic oil is injected into a second oil cavity 17 of the hydraulic cylinder 10 through a hydraulic pump and a hydraulic control valve, the shaft sleeve 14 moves leftwards under the hydraulic action of the hydraulic oil, the gear shifting shaft 12 and the gear shifting block 18 synchronously move leftwards along with the shaft sleeve 14, in principle, the gear shifting block 18 pushes the fourth gear 9 to move leftwards, and the fourth gear 9 is fixedly connected with the third gear 8 until the third gear 8 is meshed with the first gear 5.
Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that various changes, modifications and equivalents may be made therein without departing from the spirit and scope of the present invention.
Claims (9)
1. The utility model provides a large-scale numerical control gear hobbing machine knife rest gearshift, includes one-level axle (1), the output shaft of shaft coupling (2) and motor (3) is passed through to one-level axle (1) one end, and the other end rotates with gear hobbing machine casing (4) to be connected its characterized in that: fixedly connected with first gear (5) and second gear (6) on one-level axle (1), one-level axle (1) one side is equipped with rotates integral key shaft (7) of being connected with gear hobbing machine casing (4), integral key shaft (7) and one-level axle (1) are parallel, be equipped with third gear (8) and fourth gear (9) on integral key shaft (7), third gear (8) and fourth gear (9) fixed connection, all be equipped with the spline in third gear (8) and fourth gear (9), third gear (8) and fourth gear (9) pass through spline and integral key shaft (7) sliding connection, third gear (8) cooperate with first gear (5), fourth gear (9) cooperate with second gear (6), integral key shaft (7) one side is equipped with selector shaft (12) that parallel with one-level axle (1), selector shaft one end (12) sliding connection has selector seat (11) with gear hobbing machine inner wall fixed connection, the slider seat inner wall corresponds the slider seat (10) the position and the link plate (13) that the pneumatic cylinder (10) one end (11) and the link plate (13) are kept away from pneumatic cylinder (10), the gear shifting device is characterized in that a shaft sleeve (14) is arranged at a position, corresponding to the hydraulic cylinder (10), of the gear shifting shaft (12), the shaft sleeve (14) is fixedly connected with the gear shifting shaft (12) through a pin (15), the shaft sleeve (14) is in sliding fit with the inner wall of the hydraulic cylinder (10), the inner cavity of the hydraulic cylinder (10) is divided into a first oil cavity (16) and a second oil cavity (17) by the shaft sleeve (14), the first oil cavity (16) and the second oil cavity (17) are both connected with a hydraulic pump and a hydraulic control valve, a gear shifting block (18) is fixedly connected to the gear shifting shaft (12), a clamping groove is formed in one side, close to a fourth gear (9), of the gear shifting block (18), the side edge of the fourth gear (9) is placed in the clamping groove, the gear shifting block (18) can drive the fourth gear (9) to move axially along the spline shaft (7), so that the mode that the primary shaft (1) is in transmission connection with the spline shaft (7) is changed, a rear-stage gear (29) is arranged on the spline shaft (7), and a main shaft transmission tool rest is connected with the rear-stage gear (29) through driving.
2. The large numerical control gear hobbing machine knife rest gear shifting mechanism of claim 1, characterized in that: the shift shaft (12) keep away from the one end of sliding seat (11) and be equipped with signal piece (19), signal piece (19) one side is equipped with low-speed fender sensor (20) and high-speed fender sensor (21), shift shaft (12) drive signal piece (19) and remove to just when keeping off sensor (21) to high-speed, first gear (5) mesh mutually with third gear (8), shift shaft (12) drive signal piece (19) and remove to just when keeping off sensor (20) to low-speed, second gear (6) mesh mutually with fourth gear (9).
3. The large numerical control gear hobbing machine knife rest gear shifting mechanism of claim 1, characterized in that: and a first sealing ring (22) is arranged at the joint of the hydraulic cylinder (10) and the gear shifting shaft (12).
4. The large numerical control gear hobbing machine knife rest gear shifting mechanism of claim 1, characterized in that: and a second sealing ring (23) is arranged at the joint of the hydraulic cylinder (10) and the gear hobbing machine shell (4).
5. The large numerical control gear hobbing machine knife rest gear shifting mechanism of claim 1, characterized in that: and a third sealing ring (24) is arranged at the joint of the shaft sleeve (14) and the inner wall of the hydraulic cylinder (10).
6. The gear shifting mechanism of a large numerically controlled gear hobbing machine knife rest according to claim 1, characterized in that: and a fourth sealing ring (25) is arranged at the joint of the flange (13) and the inner wall of the hydraulic cylinder (10).
7. The large numerical control gear hobbing machine knife rest gear shifting mechanism of claim 1, characterized in that: and a fifth sealing ring (26) is arranged at the joint of the connecting disc (13) and the gear shifting shaft (12).
8. The gear shifting mechanism of a large numerically controlled gear hobbing machine knife rest according to claim 1, characterized in that: the gear shifting block (18) is connected with the gear shifting shaft (12) through a set screw (27) and a fixed screw (28).
9. The large numerical control gear hobbing machine knife rest gear shifting mechanism of claim 1, characterized in that: the third gear (8) is fixedly connected with the fourth gear (9) through a screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211307380.4A CN115750694A (en) | 2022-10-25 | 2022-10-25 | Cutter frame gear shifting mechanism of large-scale numerical control gear hobbing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211307380.4A CN115750694A (en) | 2022-10-25 | 2022-10-25 | Cutter frame gear shifting mechanism of large-scale numerical control gear hobbing machine |
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| Publication Number | Publication Date |
|---|---|
| CN115750694A true CN115750694A (en) | 2023-03-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211307380.4A Pending CN115750694A (en) | 2022-10-25 | 2022-10-25 | Cutter frame gear shifting mechanism of large-scale numerical control gear hobbing machine |
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| CN (1) | CN115750694A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5974907A (en) * | 1996-12-31 | 1999-11-02 | Daewoo Heavy Industries Ltd. | Machine tool transmission with an improved gear shifting device |
| KR20000014042U (en) * | 1998-12-29 | 2000-07-15 | 추호석 | Automatic Tool Changer in Machining Center |
| CN202301899U (en) * | 2011-09-15 | 2012-07-04 | 无锡桥联数控机床有限公司 | Gearshift mechanism for main transmission case |
| DE102011117452A1 (en) * | 2011-10-31 | 2013-05-02 | GM Global Technology Operations LLC (n. d. Gesetzen des Staates Delaware) | Manually switchable seven-gear transmission for drive train of e.g. bus, has seventh gear synchronizer device, reverse gear-synchronizer device, and shift forks switchable along longitudinal direction of sleeve in opposite directions |
| CN205278251U (en) * | 2016-01-15 | 2016-06-01 | 重庆机床(集团)有限责任公司 | Gear hobbing knife rest that possesses adjustable function of permanent power in in a big way |
| CN214534428U (en) * | 2021-03-25 | 2021-10-29 | 辽宁金川数控机床有限公司 | Automatic gear shifting mechanism of machine tool transmission |
-
2022
- 2022-10-25 CN CN202211307380.4A patent/CN115750694A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5974907A (en) * | 1996-12-31 | 1999-11-02 | Daewoo Heavy Industries Ltd. | Machine tool transmission with an improved gear shifting device |
| KR20000014042U (en) * | 1998-12-29 | 2000-07-15 | 추호석 | Automatic Tool Changer in Machining Center |
| CN202301899U (en) * | 2011-09-15 | 2012-07-04 | 无锡桥联数控机床有限公司 | Gearshift mechanism for main transmission case |
| DE102011117452A1 (en) * | 2011-10-31 | 2013-05-02 | GM Global Technology Operations LLC (n. d. Gesetzen des Staates Delaware) | Manually switchable seven-gear transmission for drive train of e.g. bus, has seventh gear synchronizer device, reverse gear-synchronizer device, and shift forks switchable along longitudinal direction of sleeve in opposite directions |
| CN205278251U (en) * | 2016-01-15 | 2016-06-01 | 重庆机床(集团)有限责任公司 | Gear hobbing knife rest that possesses adjustable function of permanent power in in a big way |
| CN214534428U (en) * | 2021-03-25 | 2021-10-29 | 辽宁金川数控机床有限公司 | Automatic gear shifting mechanism of machine tool transmission |
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