CN202070940U - Integrated transmission case of machine tool - Google Patents
Integrated transmission case of machine tool Download PDFInfo
- Publication number
- CN202070940U CN202070940U CN 201120055305 CN201120055305U CN202070940U CN 202070940 U CN202070940 U CN 202070940U CN 201120055305 CN201120055305 CN 201120055305 CN 201120055305 U CN201120055305 U CN 201120055305U CN 202070940 U CN202070940 U CN 202070940U
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- Prior art keywords
- gear
- shaft
- transmission case
- feeding
- lathe
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Abstract
The utility model discloses an integrated transmission case of a machine tool, which adopts two sets of unidirectional transmission devices in opposite directions, realizes the quick retreating and slow feeding of the machine tool through a simple structure, and has the advantages of simple structure, low manufacturing cost, lower failure rate and low maintenance cost. Meanwhile, a torque clutch is arranged between the power system and the actuating device of the machine tool, so that the torque on a transmission shaft is increased when the feeding of the machine tool is not smooth, eventually, the torsion clutch is disengaged, the machine tool maintains a harmless clamping force and a motor is prevented from being burn out due to a locked rotor, at the moment, the motor is controlled to rotate reversely and retreat in coordination with a control circuit. The integrated transmission case of the machine tool is a mechanical locked-rotor prevention device and has the advantages of simple structure, low manufacturing cost, lower failure rate, safety and reliability. Meanwhile, the integrated transmission case of the machine tool and a planetary gear reduction gear device are integrally mounted into the same transmission case body, so as to overcome the problem of monotonous function of a mechanical transmission device and enable the whole transmission case to integrally complete the output of different speeds of mechanical forward and reverse rotations and meet the requirement of locked-rotor prevention.
Description
Technical field
The utility model relates to machine tool field, particularly a kind of lathe one transmission case.
Background technology
Lathe is general to be required to retreat fast, and require at a slow speed during feeding, retreat the efficient height to reach, the requirement that the feeding safety coefficient is high, lathe generally adopts a cover reduction gear box of rotating constant speed output at present, under the situation of the motor speed unanimity of its connection, the rotating speed of its output is the same with torque, in order to realize retreating fast and feeding at a slow speed, its speed governing generally adopts gear that motor speed governing system or clutch switch different speed ratios to realize retreating friction speed with feeding, and there is the control system complex structure in said system, the cost height, the fault rate height, shortcomings such as maintenance cost height.Its mechanical driving device function singleness can not integratedly be finished the requirement of mechanical type rotating different rotating speeds output simultaneously.In addition; plant equipment has a lot of functions to realize by transmission of torque; when load end overload or stuck, provide the motor of power stall with causing and generate heat even burn the therefore general relay overcurrent protective device that adopts; in time disconnect motor power; to reach the purpose of protection motor, in actual applications, usually, overcurrent protection caused motor to burn because losing efficacy; therefore, overcurrent protection can not be stopped the accident generation fully.In addition, some equipment need apply and keeps certain pressure to workpiece, general at present the employing is advanced into workpiece with execution units such as briquetting or work piece holders earlier, after arriving the precalculated position, it is out of service to adopt sensor or travel switch to control motor, and then the base part of locked briquetting or anchor clamps, there are two defectives in this method, the one, can not accurately control pressure or chucking power to workpiece, increase the pressure sensor control system and can increase cost greatly, the 2nd, when sensor and travel switch inefficacy, still can cause the motor stall, possible defective work piece or motor.Therefore, need to increase more reliable, the controlled pressure that again can be more accurate or the transmission device of chucking power.Simultaneously, the general speed change gear that uses of lathe is common gear-box at present, and gear quantity is more, and device volume is bigger, and cost is higher.
The utility model content
For addressing the above problem, it is a kind of simple in structure that the purpose of this utility model is to provide, and cost is lower, and fault rate is low, and volume is little, and maintenance cost is low, has the lathe one transmission case of the high mechanical type pinch resistant functionality of reliability simultaneously.
For achieving the above object, the technical solution of the utility model is: the transmission of a kind of lathe one
Case comprises:
The non-constant speed output gear of transmission case body, planetary gear and rotating wheels;
The non-constant speed output gear of described rotating wheels are provided with the driving shaft of torque input and the driven axle of output torque, and retreat driving gear, feeding driving gear, retreat driven gear and feeding driven gear;
Described driving shaft and described planetary output shaft are in transmission connection, and the dynamical system of described planetary power shaft and described lathe is in transmission connection;
Between the actuating unit of described driven axle and described lathe, also be provided with torsion clutch; Described torsion clutch comprises power input shaft and power output shaft;
Describedly retreat driven gear and the feeding driven gear is coaxial is connected on the driven axle, the power input shaft of described driven axle and described torsion clutch is in transmission connection, and the power output shaft of described torsion clutch and the actuating unit of lathe are in transmission connection;
Described retreat driving gear, feeding driving gear and describedly retreat driven gear, the feeding driven gear is corresponding respectively is in transmission connection;
The described driving gear that retreats is provided with a direction and follows driving shaft and rotate synchronously the unidirectional transmission that another direction is then freely rotated around driving shaft, described feeding driven gear is provided with a direction and follows the unidirectional transmission that another direction of the synchronous rotation of driven axle is then freely rotated around driven axle, and described two non-return devices are opposite with the servo-actuated direction of driving shaft or driven axle;
Described planetary gear, rotating non-constant speed output gear wheels and torsion clutch all are installed in the described transmission case body.
Preferably, described torsion clutch comprises power input shaft, power output shaft, moment of torsion output slide block, spring, connection ball and supporting seat;
Described power input shaft one end and described driven axle are in transmission connection;
Described power input shaft is arranged with described supporting seat, spring, moment of torsion output slide block and power output shaft successively from described driven axle one side direction opposite side; Described supporting seat is fixedly connected on the described power input shaft, and described moment of torsion output slide block and power output shaft slip cap are located on the described power input shaft;
Described moment of torsion output slide block and described power input shaft are provided with the helical groove of mutual coupling, are embedded with described connection ball in the described helical groove;
The one side that described moment of torsion output slide block and power output shaft are in contact with one another is equipped with projection;
An end and the described actuating unit away from described moment of torsion output slide block of described power output shaft are in transmission connection.
Preferably, the contact-making surface between the described projection is processed with circular arc chamfering.
Preferably, described retreat driving gear, feeding driving gear and describedly retreat driven gear, the corresponding respectively coupling of feeding driven gear is connected with a joggle.
Preferably, comprise also retreating reduction box and feeding reduction box that the described driving gear, feeding driving gear of retreating retreats reduction box and the corresponding coupling of feeding reduction box is connected with a joggle by described respectively with described driven gear, the feeding driven gear of retreating.
Preferably, described unidirectional transmission is that a direction is followed driving shaft or driven axle and rotated unilateral bearing, one-way clutch or the ratchet that another direction is then freely rotated around driving shaft or driven axle synchronously.
Preferably, the gear ratio of described feeding driving gear and described feeding driven gear less than retreat driving gear and retreat driven gear gear ratio.
Preferably, described planetary gear comprises sun gear, at least two planetary gears and planet carrier, described sun gear is connected with described power shaft fixing coaxial, and described at least two planetary gears all are rotationally connected with on the described planet carrier, and described output shaft is fixedly connected on the rotating shaft of described planet carrier.
Preferably, be connected by bearing between described power output shaft and the described power input shaft.
Preferably, described lathe one transmission case also is provided with in order to detect the sensor of moment of torsion, moment of torsion output slide block corner or moment of torsion output slide position, and described sensor is electrically connected with described dynamical system.
Adopt the beneficial effect of the technical program to be: adopt the opposite unidirectional transmission of two cover directions, can realize that the actuating unit of lathe retreats and feeding at a slow speed fast by simple structure, simple in structure, cost is low, and fault rate and maintenance cost are low.Simultaneously, in same transmission case body, between the actuating unit of the dynamical system of described lathe and described lathe, be provided with torsion clutch, make lathe when feeding is obstructed, moment of torsion on the power transmission shaft increases, and torsion clutch is threaded off, and lathe is kept harmless chucking power, and motor can not burn by stall, cooperate this moment the counter-rotating of control circuit control motor to retreat, this device is the anti-blocking rotary device of mechanical type, and is simple in structure, cost is low, and fault rate is low and safe and reliable.Simultaneously said apparatus and planetary gear speed-reduction geared system are integrated and be installed in the same transmission case body, overcome the problem of mechanical driving device function singleness, made whole transmission case can integratedly finish the requirement that stall was exported and prevented to mechanical type rotating different rotating speeds.
Description of drawings
Fig. 1 is the schematic diagram of a kind of lathe one of the utility model transmission case;
Fig. 2 is the schematic diagram when torsion clutch links in the utility model;
Fig. 3 is the decomposing schematic representation of torsion clutch in the utility model.
Numeral and the represented corresponding component title of letter among the figure:
1. dynamical system 2. retreats driving gear 3. driving shafts 4. feeding driving gears 5. and retreats driven gear 6. driven axles 7. feeding driven gears 8. actuating units 9. transmission case bodies 10. external toothings 11. planetary gears 12. sun gears 13. planet carriers 14. torsion clutches 22. power input shafts 23. supporting seats 24. springs 25. connection balls 26. moments of torsion output slide block 27. power output shafts 29. projections
The specific embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Embodiment 1,
As Fig. 1, Fig. 2, shown in Figure 3, a kind of lathe one transmission case comprises:
A kind of lathe one transmission case comprises:
The non-constant speed output gear of transmission case body 9, planetary gear and rotating wheels;
The non-constant speed output gear of described rotating wheels are provided with the driving shaft 3 of torque input and the driven axle 6 of output torque, and retreat driving gear 2, feeding driving gear 4, retreat driven gear 5 and feeding driven gear 7;
Described driving shaft 3 is in transmission connection with described planetary output shaft, and the dynamical system 1 of described planetary power shaft and described lathe is in transmission connection; Described planetary gear comprises sun gear 12, two planetary gears 11 and planet carriers 13, described sun gear 12 is connected with described power shaft fixing coaxial, described two planetary gears 11 all are rotationally connected with on the described planet carrier 13, and described output shaft is fixedly connected on the rotating shaft of described planet carrier 13.
Between the actuating unit 8 of described driven axle 6 and described lathe, also be provided with torsion clutch 14; Described torsion clutch 14 comprises power input shaft 22 and power output shaft 27;
Describedly retreat driven gear 5 and feeding driven gear 7 coaxial being connected on the driven axle 6, described driven axle 6 is in transmission connection with the power input shaft 22 of described torsion clutch 14, and the power output shaft 27 of described torsion clutch 14 is in transmission connection with the actuating unit 8 of lathe;
Described retreat driving gear 2, feeding driving gear 4 and describedly retreat driven gear 5, feeding driven gear 7 is corresponding respectively is in transmission connection;
The described driving gear 2 that retreats is provided with a direction and follows driving shaft 3 and rotate the unidirectional transmission that another directions are then freely rotated around driving shaft 3 synchronously, described feeding driven gear 7 is provided with a direction and follows the unidirectional transmission that driven axle 6 synchronous another directions of rotation are then freely rotated around driven axle 6, and described two non-return devices are opposite with the servo-actuated direction of driving shaft 3 or driven axle 6; Described retreat driving gear 2, feeding driving gear 4 and describedly retreat driven gear 5, the corresponding respectively coupling of feeding driven gear 7 is connected with a joggle.The gear ratio of described feeding driving gear 4 and described feeding driven gear 7 less than retreat driving gear 2 and retreat driven gear 5 gear ratio.
Above-mentioned unidirectional transmission is that a direction is followed driving shaft 3 or driven axle 6 and rotated unilateral bearing, one-way clutch or the ratchet that another directions are then freely rotated around driving shaft 3 or driven axle 6 synchronously.
Described planetary gear, rotating non-constant speed output gear wheels and torsion clutch 14 all are installed in the described transmission case body 9.
Described torsion clutch 14 comprises power input shaft 22, power output shaft 27, moment of torsion output slide block 26, spring 24, connects ball 25 and supporting seat 23;
Described power input shaft 22 1 ends and described driven axle 6 are in transmission connection;
Described power input shaft 22 is arranged with described supporting seat 23, spring 24, moment of torsion output slide block 26 and power output shaft 27 successively from described driven axle 6 one side direction opposite sides; Described supporting seat 23 is fixedly connected on the described power input shaft 22, and described moment of torsion output slide block 26 and power output shaft 27 slip caps are located on the described power input shaft 22;
Described moment of torsion output slide block 26 and described power input shaft 22 are provided with the helical groove of mutual coupling, are embedded with described connection ball 25 in the described helical groove;
The one side that described moment of torsion output slide block 26 and power output shaft 27 are in contact with one another is equipped with projection 29;
An end and the described actuating unit 8 away from described moment of torsion output slide block 26 of described power output shaft 27 are in transmission connection.
Contact-making surface during described machine tool feed between the described projection 29 is processed with circular arc chamfering.
Its operation principle is, when retreating, start dynamical system 1, driving sun gear 12 rotates, sun gear 12 drives planetary gear 11 and rotates around sun gear 12, planetary gear 11 drives planet carrier 13 and rotates, planet carrier 13 drives driving shaft 3 and rotates, driving shaft 3 drives and retreats driving gear 2 rotations, and driving gear 2 drives and retreats driven gear 5 rotations, retreats driving gear 5 drive driven axles 6 and rotates, driven axle 6 drives torsion clutch 14 and rotates, torsion clutch 14 drives lathe actuating unit 8 and retreats fast, and feeding this moment driven gear 7 also rotates along with driven axle 6, and it drives feeding driving gear 4 and rotates, because the existence of unidirectional transmission, feeding this moment driving gear 4 rotates freely around driving shaft 3, and does not have the transmission of moment and energy, is equivalent to the gear relevant with feeding and all has neither part nor lot in work.Otherwise, when feeding, dynamical system 1 counter-rotating, the planetary gear counter-rotating drives driving shaft 3 counter-rotatings, this moment feeding driving gear 4 and 7 work of feeding driven gear, driving torsion clutch 14 rotates, torsion clutch 14 drives 8 feedings of lathe actuating units because the gear ratio of feeding driving gear 4 and described feeding driven gear 7 less than retreat driving gear 2 and retreat driven gear 5 gear ratio, therefore realized that astern speed is greater than feed speed.Present embodiment has realized realizing the integrated requirement of finishing the output of mechanical type rotating different rotating speeds in an integral type transmission case.Omitted complicated electrical speed regulation control system.It is little to have volume, and cost is low, the reliability advantages of higher.
Wherein, the operation principle of torsion clutch 14 is, during inactive state, moment of torsion output slide block 26 is under the effect of spring 24, be on the moment of torsion output station, at this moment, connect ball 25 and be in bolt indentation near supporting seat 23 1 sides, the projection 29 of moment of torsion output slide block 26 and power output shaft 27 intersects nested, and this moment, moment of torsion output slide block 26 and power output shaft 27 were owing to the existence of projection 29 can be rotated together.When lathe starts the feeding switch, dynamical system 1 drives power input shaft 22 rotations by driving driven axle 6, owing to connect the effect of ball 25 and spring 24, moment of torsion output slide block 26 is followed rotation, under the effect of projection 29, power output shaft 27 rotates and drives actuating unit 8 feedings, finish up to the feeding process, if in the feeding process, meet with obstruction, reverse power output shaft 27 and the moment of torsion output slide block 26 of passing to of the resistance that lathe runs into, when resistance is enough big, overcome the pressure of spring 24, force moment of torsion output slide block 26 and power output shaft 22 that relative motion takes place, under the effect that connects ball 25 and helical groove, moment of torsion output slide block 26 is to supporting seat 23 1 side shiftings, connect ball 5 and finally be in helical groove near power output shaft 7 one sides, at this moment, the projection 29 of moment of torsion output slide block 26 and power output shaft 27 breaks away from mutually, the action of lathe feed-disabling, and dynamical system 1 drive moment of torsion output slide block 26 is rotated further, when projection 29 turns to nested position, under the effect of spring 24, moment of torsion output slide block 26 is retracted original position, if this moment, obstacle was removed, then lathe continues to finish feed motion, if obstacle is not removed, then the projection 29 of moment of torsion output slide block 26 and power output shaft 27 breaks away under the effect of resistance mutually, goes round and begins again, and disappears up to resistance.
Adopt the beneficial effect of the technical program to be: adopt the opposite unidirectional transmission of two cover directions, can realize retreating fast of lathe and feeding at a slow speed by simple structure, simple in structure, cost is low, and fault rate and maintenance cost are low.Simultaneously, in same transmission case body, between the actuating unit of the dynamical system of described lathe and described lathe, be provided with torsion clutch, make lathe when feeding is obstructed, moment of torsion on the power transmission shaft increases, and torsion clutch is threaded off, and lathe is kept harmless chucking power, and motor can not burn by stall, cooperate this moment the counter-rotating of control circuit control motor to retreat, this device is the mechanical type anti-pinch device, and is simple in structure, cost is low, fault rate and safe and reliable.Simultaneously said apparatus and planetary gear speed-reduction geared system are integrated and be installed in the same transmission case body, overcome the problem of mechanical driving device function singleness, made whole transmission case can integratedly finish the requirement that stall was exported and prevented to mechanical type rotating different rotating speeds.
All the other are identical with embodiment 1, and difference is that described lathe anti-pinch device also is provided with in order to detect the sensor of moment of torsion, moment of torsion output slide block 6 corners or moment of torsion output slide block 6 positions, and described sensor is electrically connected with described dynamical system.When meeting with obstruction, sensor detects correlated variables, and 1 counter-rotating of control dynamical system retreats actuating unit 8, is beneficial to remove fault.
Above-described only is preferred implementation of the present utility model; should be pointed out that for the person of ordinary skill of the art, under the prerequisite that does not break away from the utility model creation design; can also make some distortion and improvement, these all belong to protection domain of the present utility model.
Claims (10)
1. a lathe one transmission case is characterized in that, comprising:
The non-constant speed output gear of transmission case body, planetary gear and rotating wheels;
The non-constant speed output gear of described rotating wheels are provided with the driving shaft of torque input and the driven axle of output torque, and retreat driving gear, feeding driving gear, retreat driven gear and feeding driven gear;
Described driving shaft and described planetary output shaft are in transmission connection, and the dynamical system of described planetary power shaft and described lathe is in transmission connection;
Between the actuating unit of described driven axle and described lathe, also be provided with torsion clutch; Described torsion clutch comprises power input shaft and power output shaft;
Describedly retreat driven gear and the feeding driven gear is coaxial is connected on the driven axle, the power input shaft of described driven axle and described torsion clutch is in transmission connection, and the power output shaft of described torsion clutch and the actuating unit of lathe are in transmission connection;
Described retreat driving gear, feeding driving gear and describedly retreat driven gear, the feeding driven gear is corresponding respectively is in transmission connection;
The described driving gear that retreats is provided with a direction and follows driving shaft and rotate synchronously the unidirectional transmission that another direction is then freely rotated around driving shaft, described feeding driven gear is provided with a direction and follows the unidirectional transmission that another direction of the synchronous rotation of driven axle is then freely rotated around driven axle, and described two non-return devices are opposite with the servo-actuated direction of driving shaft or driven axle;
Described planetary gear, rotating non-constant speed output gear wheels and torsion clutch all are installed in the described transmission case body.
2. lathe one transmission case according to claim 1 is characterized in that, described torsion clutch comprises power input shaft, power output shaft, moment of torsion output slide block, spring, connection ball and supporting seat;
Described power input shaft one end and described driven axle are in transmission connection;
Described power input shaft is arranged with described supporting seat, spring, moment of torsion output slide block and power output shaft successively from described driven axle one side direction opposite side; Described supporting seat is fixedly connected on the described power input shaft, and described moment of torsion output slide block and power output shaft slip cap are located on the described power input shaft;
Described moment of torsion output slide block and described power input shaft are provided with the helical groove of mutual coupling, are embedded with described connection ball in the described helical groove;
The one side that described moment of torsion output slide block and power output shaft are in contact with one another is equipped with projection;
An end and the described actuating unit away from described moment of torsion output slide block of described power output shaft are in transmission connection.
3. lathe one transmission case according to claim 2 is characterized in that the contact-making surface between the described projection is processed with circular arc chamfering.
4. lathe one transmission case according to claim 2 is characterized in that, described retreat driving gear, feeding driving gear and describedly retreat driven gear, the corresponding respectively coupling of feeding driven gear is connected with a joggle.
5. lathe one transmission case according to claim 2, it is characterized in that, comprise also retreating reduction box and feeding reduction box that the described driving gear, feeding driving gear of retreating retreats reduction box and the corresponding coupling of feeding reduction box is connected with a joggle by described respectively with described driven gear, the feeding driven gear of retreating.
6. according to the arbitrary described lathe one transmission case of claim 1 to 5, it is characterized in that described unidirectional transmission is that a direction is followed driving shaft or driven axle and rotated unilateral bearing, one-way clutch or the ratchet that another direction is then freely rotated around driving shaft or driven axle synchronously.
7. lathe one transmission case according to claim 6 is characterized in that, the gear ratio of described feeding driving gear and described feeding driven gear less than retreat driving gear and retreat driven gear gear ratio.
8. lathe one transmission case according to claim 6, it is characterized in that, described planetary gear comprises sun gear, at least two planetary gears and planet carrier, described sun gear is connected with described power shaft fixing coaxial, described at least two planetary gears all are rotationally connected with on the described planet carrier, and described output shaft is fixedly connected on the rotating shaft of described planet carrier.
9. according to the arbitrary described lathe one transmission case of claim 2 to 5, it is characterized in that, be connected by bearing between described power output shaft and the described power input shaft.
10. lathe one transmission case according to claim 9, it is characterized in that, described lathe one transmission case also is provided with in order to detect the sensor of moment of torsion, moment of torsion output slide block corner or moment of torsion output slide position, and described sensor is electrically connected with described dynamical system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120055305 CN202070940U (en) | 2011-03-04 | 2011-03-04 | Integrated transmission case of machine tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120055305 CN202070940U (en) | 2011-03-04 | 2011-03-04 | Integrated transmission case of machine tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202070940U true CN202070940U (en) | 2011-12-14 |
Family
ID=45109050
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120055305 Expired - Fee Related CN202070940U (en) | 2011-03-04 | 2011-03-04 | Integrated transmission case of machine tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202070940U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102653065A (en) * | 2011-03-04 | 2012-09-05 | 张家港市九鼎机械有限公司 | Integrated transmission case for machine tool |
| CN102653066A (en) * | 2011-03-04 | 2012-09-05 | 张家港市九鼎机械有限公司 | Integrated transmission case for machine tool |
-
2011
- 2011-03-04 CN CN 201120055305 patent/CN202070940U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102653065A (en) * | 2011-03-04 | 2012-09-05 | 张家港市九鼎机械有限公司 | Integrated transmission case for machine tool |
| CN102653066A (en) * | 2011-03-04 | 2012-09-05 | 张家港市九鼎机械有限公司 | Integrated transmission case for machine tool |
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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: 20111214 Termination date: 20140304 |