CN110185753B - Lead screw type automatic gear shifting mechanism suitable for speed change of extruder - Google Patents
Lead screw type automatic gear shifting mechanism suitable for speed change of extruder Download PDFInfo
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- CN110185753B CN110185753B CN201910408524.7A CN201910408524A CN110185753B CN 110185753 B CN110185753 B CN 110185753B CN 201910408524 A CN201910408524 A CN 201910408524A CN 110185753 B CN110185753 B CN 110185753B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
- F16H3/02—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion
- F16H3/20—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially using gears that can be moved out of gear
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
- F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
- F16H63/30—Constructional features of the final output mechanisms
- F16H63/32—Gear shift yokes, e.g. shift forks
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
- F16H63/40—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism comprising signals other than signals for actuating the final output mechanisms
- F16H63/42—Ratio indicator devices
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gear-Shifting Mechanisms (AREA)
Abstract
The invention discloses a screw rod type automatic gear shifting mechanism suitable for speed change of an extruder, which comprises a screw rod supporting assembly, a shifting fork, an output shaft assembly and an input shaft, wherein the upper part of the shifting fork is matched with the screw rod supporting assembly through a threaded hole, the lower part of the shifting fork is matched with the output shaft assembly, the input shaft adopts a gear shaft, and the output shaft assembly is meshed with a gear of the input shaft through a gear. The invention has the advantages of concise integral structure, small volume, simple part structure and easy manufacture and production; the screw rod can provide self-locking performance to prevent the gear of the transmission from being out of gear in the running process of the equipment; the upper part of the shifting fork can synchronously move along with the shifting fork, and the shifting fork is fed back by pressing the button, so that the automatic control is facilitated.
Description
Technical Field
The invention belongs to a speed change mechanism, and particularly relates to a screw rod type automatic gear shift mechanism suitable for speed change of an extruder.
Background
The automatic gear shifting mechanism can centralize equipment control, the workload of workers is reduced under the condition of realizing remote control, and the gear shifting mechanism has the gear-out prevention function. The existing forward structure is simple, gear shifting is rapid and accurate, and the influence of a gear shifting mechanism on an output mechanism is developed in the direction as small as possible.
The extruder screw only needs to set the speed before the operation of the equipment, at the moment, the rotating speeds of the screw and other intermediate transmission devices are zero, the gear shifting is convenient, and the speed change system of the extruder is developing towards automation, simplification and light weight at present.
A hydraulic control gear shifting actuating mechanism is provided in 'design and simulation of hybrid torque automobile DHT gear shifting actuating mechanism based on AMESim' by Lukai et al, hydraulic pressure is controlled to drive a synchronizer to move, and the gear shifting effect is achieved.
Patent CN201820640863.9 discloses a novel tractor PTO gear shifting control mechanism, which has the problem that the information of the gear of a speed change mechanism cannot be automatically fed back, and automatic gear shifting is difficult to achieve.
Patent CN201820157345.1 discloses an "electric control mechanical automatic gear shift mechanism", which adopts a gear shift sensing shaft connected with a gear shift position sensor to detect the actual moving position of a gear shift finger, and has a problem that a sensing device for measuring the gear shift position occupies a large space.
Disclosure of Invention
The invention aims to provide a screw rod type automatic gear shifting mechanism suitable for the speed change of an extruder, and when a gear is in an improper position after equipment is stopped, automatic gear shifting can be realized through the screw rod type automatic gear shifting mechanism. The invention has simple structure, is convenient for processing and production, has the function of preventing gear shifting, can feed back the gear of the gear shifting mechanism and provides position information for a control system.
The technical solution for realizing the purpose of the invention is as follows: the utility model provides a lead screw formula automatic gear shifting mechanism suitable for extruder variable speed, includes lead screw supporting component, shift fork, output shaft subassembly and input shaft, and shift fork upper portion is through screw hole and lead screw supporting component cooperation, and the shift fork lower part and the cooperation of output shaft subassembly, input shaft adopt the gear shaft, and the output shaft subassembly passes through the gear engagement of gear and input shaft.
The lead screw supporting assembly comprises a first support, a second support, a lead screw, a first copper sleeve, a second copper sleeve and three buttons. The first support is a square box body and is not provided with a bottom surface and two interconnected side surfaces, one side surface is provided with a first second-order through hole, the hole diameter of the inner side is large, the other side surface is provided with three first through holes with equal heights, three buttons are arranged in the three first through holes respectively, and output signal wires of the three buttons extend out of the first support. The second support is a cuboid, a second-order through hole is formed in the center of the second support, and the diameter of the hole in the inner side wall of the second support is large. The screw rod is formed by sequentially connecting a first cylinder, a second cylinder, a third cylinder and a fourth cylinder with different diameters, and a key groove is formed in the end part of the first cylinder; the diameter of the second cylinder is larger than that of the first cylinder; the diameter of the third cylinder is larger than that of the second cylinder, and the third cylinder is provided with an external thread and is a main body part of the screw rod; the diameter of the fourth cylinder is smaller than the small diameter of the third cylinder thread. The first support is matched with the first copper sleeve through a hole with a large aperture in the first second-order through hole, the lead screw is matched with the first copper sleeve through the second cylinder, the third cylinder of the lead screw is located inside the first support during matching, the second copper sleeve is matched with the fourth cylinder of the lead screw, the second copper sleeve is matched with the hole with the large aperture in the second-order through hole of the second support, the upper portion of the shifting fork is sleeved on the third cylinder through a threaded hole, and the second support is fixed to one end, without a side wall, of the first support and fixedly connected through a bolt.
The shifting fork comprises an arc-shaped clamping piece, a connecting rod, a connecting block and a protrusion, the bottom surface of the connecting rod is fixedly connected with the top surface of the outer side wall of the arc-shaped clamping piece, the top surface of the connecting rod is fixedly connected with the bottom surface of the connecting block, a threaded hole is formed in the center of the connecting block, and the shifting fork is connected with a third cylinder of a lead screw in the lead screw supporting assembly in a matched mode through the threaded hole. The bulge is fixed on any one side surface of the connecting block, the side surface has no threaded hole, and the arc-shaped clamping piece is matched with the output shaft assembly. The protrusion can move along the axial direction of the screw rod along with the shifting fork, and when the protrusion moves to one of the three first through holes facing the screw rod supporting assembly, the protrusion is matched with a button in the three first through holes, and the button can be pressed down to connect an output signal wire of the button.
The output shaft assembly includes a first gear set, a second gear set, an output shaft, a synchronizing sleeve, a splined hub, and a key. The first gear set comprises a first gear and a fifth cylinder, the diameter of the first gear is larger than that of the fifth cylinder, the first gear is located on the outer side of the fifth cylinder, and an external spline is machined on the outer circumference of the fifth cylinder. The second gear set comprises a second gear and a sixth cylinder, the diameter of the second gear is larger than that of the sixth cylinder, the second gear is located on the outer side of the sixth cylinder, and an external spline is machined on the outer circumference of the sixth cylinder. The output shaft is formed by sequentially connecting a seventh cylinder, an eighth cylinder, a ninth cylinder, a tenth cylinder and an eleventh cylinder which have different diameters, and the diameter of the seventh cylinder is smaller than that of the eighth cylinder; the eighth cylinder adopts a collar; the diameter of the ninth cylinder is smaller than that of the eighth cylinder, and a key groove is formed in the outer circumference of the ninth cylinder; the diameter of the tenth cylinder is smaller than that of the ninth cylinder; the diameter of the eleventh cylinder is smaller than that of the tenth cylinder, and a key groove is formed in the open end of the eleventh cylinder. The synchronizing sleeve is a circular ring, an inner spline is machined on the inner wall of the synchronizing sleeve, a circle of circular groove is formed in the middle of the outer wall of the synchronizing sleeve, and the arc-shaped clamping piece of the shifting fork is clamped in the circular groove. The spline hub is a circular ring, the inner hole is provided with a key groove, and the outer wall is an external spline. The first gear set is matched with a seventh cylinder of the output shaft, the end part of a spline on the fifth cylinder is matched with the end face of an eighth cylindrical shaft collar in the output shaft, the spline hub is matched with a ninth cylinder of the output shaft, a key groove of the spline hub is matched with a ninth cylinder key groove in the output shaft through a key, the second gear set is matched with a tenth cylinder of the output shaft, and the end part of a sixth cylindrical spline in the second gear set is matched with the end face of the spline hub.
The input shaft is formed by a twelfth cylinder, a thirteenth cylinder, a fourteenth cylinder, a fifteenth cylinder and a sixteenth cylinder which are different in diameter in sequence, the diameter of the twelfth cylinder is smaller than that of the thirteenth cylinder, and a key groove is formed in the open end of the twelfth cylinder; the diameter of the thirteenth cylinder is smaller than that of the fourteenth cylinder; a gear shaft is adopted as the fourteenth cylinder; the diameter of the fifteenth cylinder is smaller than that of the fourteenth cylinder; the diameter of the sixteenth cylinder is larger than that of the fifteenth cylinder, and the sixteenth cylinder adopts a gear shaft. In the operation process, the fourteenth cylinder of the input shaft is meshed with the first gear of the output shaft assembly, and the sixteenth cylinder is meshed with the second gear of the output shaft assembly.
Compared with the prior art, the invention has the remarkable advantages that:
(1) the whole structure is concise, the volume is small, the structure of the part is simple, and the manufacture and the production are easy.
(2) Possesses self-locking performance, reaches the anticreep shelves effect.
(3) The automatic control device has a shifting fork position feedback function and is beneficial to automatic control.
Drawings
Fig. 1 is an exploded view of a screw type automatic gear shifting mechanism suitable for speed change of an extruder according to the present invention.
Fig. 2 is an assembly schematic diagram of the screw type automatic gear shifting mechanism suitable for the speed change of the extruder.
Fig. 3 is an exploded view of the lead screw support assembly of the present invention.
Figure 4 is a schematic view of the screw bearing assembly of the present invention.
FIG. 5 is a schematic view of a fork assembly of the present invention.
Fig. 6 is an exploded view of the output shaft assembly of the present invention.
FIG. 7 is a schematic illustration of the gear I state of the present invention.
FIG. 8 is a state diagram for gear II of the present invention.
FIG. 9 is a schematic illustration of the neutral state of the present invention.
Detailed Description
The present invention is described in further detail below with reference to the attached drawing figures.
With reference to fig. 1 to 9, the screw type automatic gear shifting mechanism suitable for speed change of an extruder includes a screw supporting assembly, a shifting fork 4, an output shaft assembly and an input shaft 8, wherein the upper portion of the shifting fork 4 is matched with the screw supporting assembly through a threaded hole, the lower portion of the shifting fork 4 is matched with the output shaft assembly, the input shaft 8 adopts a gear shaft, and the output shaft assembly is engaged with a gear of the input shaft 8 through a gear.
The screw rod supporting assembly comprises a first support 12, a second support 2, a screw rod 14, a first copper sleeve 13, a second copper sleeve 3 and three buttons 1. The first support 12 is a square box body and is not provided with a bottom surface and two interconnected side surfaces, one side surface is provided with a first second-order through hole, the hole diameter of the inner side is large, the other side surface is provided with three first through holes with equal heights, the three buttons 1 are respectively arranged in the three first through holes, and output signal wires of the three buttons 1 extend out of the first support 12. The second support 2 is a cuboid, a second-order through hole is formed in the center, and the diameter of the hole in the inner side wall of the second support 2 is large. The screw 14 is formed by sequentially connecting a first cylinder, a second cylinder, a third cylinder and a fourth cylinder with different diameters, and a key groove is formed in the end part of the first cylinder; the diameter of the second cylinder is larger than that of the first cylinder; the diameter of the third cylinder is larger than that of the second cylinder, and the third cylinder is provided with external threads and is a main body part of the screw rod 14; the diameter of the fourth cylinder is smaller than the small diameter of the third cylinder thread. The first support 12 is matched with the first copper sleeve 13 through a hole with a large aperture in the first second-order through hole, the lead screw 14 is matched with the first copper sleeve 13 through the second cylinder, the third cylinder of the lead screw 14 is positioned inside the first support 12 during matching, the second copper sleeve 3 is matched with the fourth cylinder of the lead screw 14, the hole with a large aperture in the second-order through hole of the second copper sleeve 3 and the second support 2 is matched, the upper part of the shifting fork 4 is sleeved on the third cylinder through a threaded hole, and the second support 2 is fixed to one end, without a side wall, of the first support 12 and is fixedly connected with the end, without the side wall, of the first support 12 through a bolt.
The shifting fork 4 comprises an arc-shaped clamping piece, a connecting rod, a connecting block and a protrusion 15, the bottom surface of the connecting rod is fixedly connected with the top surface of the outer side wall of the arc-shaped clamping piece, the top surface of the connecting rod is fixedly connected with the bottom surface of the connecting block, a threaded hole is formed in the center of the connecting block, and the shifting fork is connected with a third cylinder of a lead screw 14 in the lead screw supporting assembly in a matched mode through the threaded hole. The bulge 15 is fixed on any one side surface of the connecting block, the side surface has no threaded hole, and the arc-shaped clamping piece is matched with the output shaft assembly. The bulge 15 can move along the axial direction of the screw rod 14 along with the shifting fork 4, and when the bulge moves to one of the three first through holes of the screw rod supporting assembly, the bulge is matched with the button 1, so that the button 1 can be pressed down, and an output signal wire of the button 1 is connected.
The output shaft assembly includes a first gear set 10, a second gear set 7, an output shaft 6, a synchronizing sleeve 5, a splined hub 9, and a key 11. The first gear set 10 includes a first gear and a fifth cylinder, the diameter of the first gear is larger than that of the fifth cylinder, the first gear is located outside the fifth cylinder, and an external spline is processed on the outer circumference of the fifth cylinder. The second gear set 7 comprises a second gear and a sixth cylinder, the diameter of the second gear is larger than that of the sixth cylinder, the second gear is located on the outer side of the sixth cylinder, and an external spline is machined on the outer circumference of the sixth cylinder. The output shaft 6 is formed by sequentially connecting a seventh cylinder, an eighth cylinder, a ninth cylinder, a tenth cylinder and an eleventh cylinder which have different diameters, and the diameter of the seventh cylinder is smaller than that of the eighth cylinder; the eighth cylinder adopts a collar; the diameter of the ninth cylinder is smaller than that of the eighth cylinder, and a key groove is formed in the outer circumference of the ninth cylinder; the diameter of the tenth cylinder is smaller than that of the ninth cylinder; the diameter of the eleventh cylinder is smaller than that of the tenth cylinder, and a key groove is formed in the open end of the eleventh cylinder. Synchronous sleeve 5 is the ring, and inner wall processing has internal spline, and open at the outer wall middle part has the round ring groove, and the arc fastener card of shift fork 4 is in the ring groove. Spline hub 9 is the ring, and the hole is opened there is the keyway, and the outer wall is external splines. First gear train 10 and 6 seventh cylinder cooperations of output shaft, the cooperation of the eighth cylindrical axle ring terminal surface in spline tip and the output shaft 6 on the fifth cylinder, spline hub 9 and the cooperation of the 6 ninth cylinder of output shaft, spline hub 9 keyway and the cooperation of the ninth cylinder keyway in the output shaft 6 pass through key 11, second gear train 7 and the cooperation of the 6 tenth cylinder of output shaft, the cylindrical spline tip of the sixth in the second gear train 7 and the cooperation of spline hub 9 terminal surface.
The input shaft 8 is composed of a twelfth cylinder, a thirteenth cylinder, a fourteenth cylinder, a fifteenth cylinder and a sixteenth cylinder which are different in diameter in sequence, the diameter of the twelfth cylinder is smaller than that of the thirteenth cylinder, and a key groove is formed in the open end of the twelfth cylinder; the diameter of the thirteenth cylinder is smaller than that of the fourteenth cylinder; the fourteenth cylinder adopts a gear shaft; the diameter of the fifteenth cylinder is smaller than that of the fourteenth cylinder; the sixteenth cylinder diameter is greater than the fifteenth cylinder, and the sixteenth cylinder adopts the gear shaft. During operation, the fourteenth cylinder of the input shaft 8 is engaged with the first gear of the output shaft assembly, and the sixteenth cylinder is engaged with the second gear of the output shaft assembly.
With reference to fig. 7, 8 and 9, the working process of the present invention is as follows: the power input position transmitted by the gear shifting mechanism is a key groove of a twelfth cylinder of the input shaft 8, the power output position is a key groove of an eleventh cylinder of the output shaft 6, the input position of the driving torque of the gear shifting action is a key groove of a first cylinder of the lead screw 14, and in the operation process, the lead screw 14, the input shaft 8 and the output shaft 6 only have rotary motion around the central axis of the lead screw 14, the input shaft 8 and the output shaft 6. The relative position of the shifting fork 4 and the output shaft 6 is adjusted, so that when the protrusion 15 of the shifting fork 4 is located in the first through hole in the middle of the first support 12, the symmetrical surface of the synchronizing sleeve 5 coincides with the symmetrical surface of the spline hub 9, the initial position of the gear shifting mechanism is set to be finished, and the gear shifting mechanism is in a neutral position at the moment. When the gear is shifted, the shifting fork 4 is located at a certain gear, at the moment, the protrusion 15 of the shifting fork 4 presses the button 1 which extends into the corresponding first through hole of the first support 12 and reflects the gear information, the output signal line of the button 1 is connected, and the control system receives the current position information of the shifting fork 4. After the next gear to be changed is judged, the torque outputs the torque in the corresponding direction to the screw rod 14 through the first cylindrical key groove of the screw rod 14, the shifting fork 4 is driven to move, the synchronous sleeve 5 is simultaneously meshed with the spline hub 9 and the spline of the gear corresponding to the gear when the gear is changed to the gear I or the gear II, the torque is input into the input shaft 8 through the twelfth cylindrical key groove of the input shaft 8, the input shaft 8 inputs the torque into the spline hub 9 through the gear meshing and the spline of the synchronous sleeve 5, and finally the torque is output to a driven mechanism from the eleventh cylindrical key groove of the output shaft 6. When the shift is to the neutral gear, the synchronizing sleeve 5 is not engaged with the external spline of the first gear set 10 or the second gear set 7, and the torque cannot be transmitted from the first gear set 10 or the second gear set 7 to the spline hub 9 and further to the output shaft 6. When the protrusion 15 of the shifting fork 4 moves to the first through hole of the first support 12 corresponding to the set new gear, the button 1 extending into the first through hole is pressed, the output signal line of the button is connected, the position information of the shifting fork 4 is sent, the control screw 14 immediately stops, and the gear shifting action is completed.
Claims (5)
1. The utility model provides a lead screw formula automatic gear shifting mechanism suitable for extruder variable speed which characterized in that: the automatic transmission mechanism comprises a screw rod supporting assembly, a shifting fork (4), an output shaft assembly and an input shaft (8), wherein the upper part of the shifting fork (4) is matched with the screw rod supporting assembly, the lower part of the shifting fork (4) is matched with the output shaft assembly, the input shaft (8) adopts a gear shaft, and the output shaft assembly is meshed with a gear of the input shaft (8) through the gear;
the lead screw supporting assembly comprises a first support (12), a second support (2), a lead screw (14), a first copper sleeve (13), a second copper sleeve (3) and three buttons (1); the first support (12) is a square box body and is not provided with a bottom surface and two interconnected side surfaces, one side surface is provided with a first second-order through hole, the hole diameter of the hole positioned on the inner side is large, the other side surface is provided with three first through holes with equal heights, three buttons (1) are respectively arranged in the three first through holes, the second support (2) is a cuboid, the center is provided with a second-order through hole, and the hole diameter positioned on the inner side wall of the second support (2) is large; the screw rod (14) is formed by sequentially connecting a first cylinder, a second cylinder, a third cylinder and a fourth cylinder with different diameters, and a key groove is formed in the end part of the first cylinder; the third cylinder is provided with an external thread; the diameter of the fourth cylinder is smaller than the small diameter of the third cylinder thread; the first support (12) is matched with the first copper sleeve (13) through a hole with a large aperture in the first second-order through hole, the lead screw (14) is matched with the first copper sleeve (13) through a second cylinder, a third cylinder of the lead screw (14) is positioned inside the first support (12) during matching, the second copper sleeve (3) is matched with a fourth cylinder of the lead screw (14), the second copper sleeve (3) is matched with the hole with the large aperture in the second-order through hole of the second support (2), the upper part of the shifting fork (4) is sleeved on the third cylinder through a threaded hole, and the second support (2) is fixedly connected with one end, without a side wall, of the first support (12);
The shifting fork (4) comprises an arc-shaped clamping piece, a connecting rod, a connecting block and a protrusion (15), the bottom surface of the connecting rod is fixedly connected with the top surface of the outer side wall of the arc-shaped clamping piece, the top surface of the connecting rod is fixedly connected with the bottom surface of the connecting block, and a threaded hole is formed in the center of the connecting block and is in fit connection with a third cylinder of a lead screw (14) in the lead screw supporting assembly through the threaded hole; the bulge (15) is fixed on any one side surface of the connecting block, the side surface has no threaded hole, and the arc-shaped clamping piece is matched with the output shaft assembly;
the output shaft assembly comprises a first gear set (10), a second gear set (7), an output shaft (6), a synchronous sleeve (5), a spline hub (9) and a key (11); the first gear set (10) comprises a first gear and a fifth cylinder, the first gear is positioned on the outer side of the fifth cylinder, and an external spline is machined on the outer circumference of the fifth cylinder; the second gear set (7) comprises a second gear and a sixth cylinder, the second gear is positioned on the outer side of the sixth cylinder, and an external spline is machined on the outer circumference of the sixth cylinder; the output shaft (6) is formed by sequentially connecting a seventh cylinder, an eighth cylinder, a ninth cylinder, a tenth cylinder and an eleventh cylinder which have different diameters, wherein the eighth cylinder adopts a shaft collar; the diameter of the ninth cylinder is smaller than that of the eighth cylinder, and a key groove is formed in the outer circumference of the ninth cylinder; the diameter of the eleventh cylinder is smaller than that of the tenth cylinder, and a key groove is formed in the open end of the eleventh cylinder; the synchronous sleeve (5) is a circular ring, an internal spline is processed on the inner wall of the synchronous sleeve, a circle of circular ring groove is formed in the middle of the outer wall of the synchronous sleeve, and an arc-shaped clamping piece of the shifting fork (4) is clamped in the circular ring groove; the spline hub (9) is a circular ring, an inner hole is provided with a key groove, and the outer wall is an external spline; the first gear set (10) is matched with a seventh cylinder of the output shaft (6), the end part of a spline on the fifth cylinder is matched with the end face of an eighth cylindrical shaft collar in the output shaft (6), the spline hub (9) is matched with a ninth cylinder of the output shaft (6), a key groove of the spline hub (9) is matched with the ninth cylinder key groove in the output shaft (6) through a key (11), the second gear set (7) is matched with a tenth cylinder of the output shaft (6), and the end part of a spline of a sixth cylinder in the second gear set (7) is matched with the end face of the spline hub (9).
2. The lead screw type automatic gear shifting mechanism suitable for the variable speed of the extruder according to claim 1, wherein: the diameter of the second cylinder is larger than that of the first cylinder; the third cylinder is larger in diameter than the second cylinder.
3. The lead screw type automatic gear shifting mechanism suitable for the speed change of the extruder according to claim 1, wherein: the diameter of the first gear is larger than that of the fifth cylinder, the diameter of the second gear is larger than that of the sixth cylinder, the diameter of the seventh cylinder is smaller than that of the eighth cylinder, and the diameter of the tenth cylinder is smaller than that of the ninth cylinder.
4. The lead screw type automatic gear shifting mechanism suitable for the speed change of the extruder according to claim 1, wherein: the input shaft (8) is composed of a twelfth cylinder, a thirteenth cylinder, a fourteenth cylinder, a fifteenth cylinder and a sixteenth cylinder which are different in diameter in sequence, and a key groove is formed in the open end of the twelfth cylinder; a gear shaft is adopted as the fourteenth cylinder; the diameter of the fifteenth cylinder is smaller than that of the fourteenth cylinder; a sixteenth cylinder adopts a gear shaft; in the operation process, the fourteenth cylinder of the input shaft (8) is meshed with the first gear of the output shaft assembly, and the sixteenth cylinder is meshed with the second gear of the output shaft assembly.
5. The lead screw type automatic gear shifting mechanism suitable for the speed change of the extruder according to claim 4, wherein: the diameter of the twelfth cylinder is smaller than that of the thirteenth cylinder, and the diameter of the thirteenth cylinder is smaller than that of the fourteenth cylinder; the sixteenth cylinder is larger in diameter than the fifteenth cylinder.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910408524.7A CN110185753B (en) | 2019-05-16 | 2019-05-16 | Lead screw type automatic gear shifting mechanism suitable for speed change of extruder |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910408524.7A CN110185753B (en) | 2019-05-16 | 2019-05-16 | Lead screw type automatic gear shifting mechanism suitable for speed change of extruder |
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| CN110185753A CN110185753A (en) | 2019-08-30 |
| CN110185753B true CN110185753B (en) | 2022-06-28 |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107654640A (en) * | 2017-10-31 | 2018-02-02 | 江苏悍特森动力科技有限公司 | Gearshift component and gearbox designs |
| CN207034103U (en) * | 2017-07-07 | 2018-02-23 | 重庆富瑞机械制造有限公司 | The preposition force adding direction reverser of motor tricycle |
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| US5205179A (en) * | 1990-07-21 | 1993-04-27 | Ina Walzlager Schaeffler Kg | Speed changing device |
| CN103557316A (en) * | 2013-11-23 | 2014-02-05 | 合肥工业大学 | Screw-nut gear-shifting mechanism for automatic two-gear transmission of electric car |
| CN203847684U (en) * | 2014-06-06 | 2014-09-24 | 合肥工业大学 | Gear sensor for two-gear automatic transmission of pure electric vehicle |
| CN106051137A (en) * | 2016-06-28 | 2016-10-26 | 泰州市海博汽车科技有限公司 | Multi-gear gearbox and control method thereof |
| CN206958229U (en) * | 2017-04-28 | 2018-02-02 | 苏州绿控传动科技有限公司 | A kind of AMT automatic gear shift apparatus |
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- 2019-05-16 CN CN201910408524.7A patent/CN110185753B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207034103U (en) * | 2017-07-07 | 2018-02-23 | 重庆富瑞机械制造有限公司 | The preposition force adding direction reverser of motor tricycle |
| CN107654640A (en) * | 2017-10-31 | 2018-02-02 | 江苏悍特森动力科技有限公司 | Gearshift component and gearbox designs |
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