Axis feeding gear
Technical field
The present invention relates to a kind of gear, particularly relate to a kind of axis feeding gear.
Background technology
At present, the axis feeding system that the light-duty radial drilling machine of existing Z32 uses still adopts Manual feeding device, and in real work, axis feeding is uneven, and operation effort is inconvenient, and labour intensity is large, inefficiency, and is difficult to ensure machining accuracy.
Summary of the invention
The object of this invention is to provide simple, the easy for operation convenient power-saving of a kind of structure, the axis feeding gear of main shaft auto-feed can be realized.
For achieving the above object, the technical solution used in the present invention is:
A kind of axis feeding gear, comprise casing, casing extenal fixation is provided with motor, the first splined shaft is relatively rotatably installed with in casing, first splined shaft upper driving is connected with the second travelling gear and the first triple gear, the output shaft upper driving of motor is connected with the first travelling gear, first travelling gear is meshed with the second travelling gear, it is characterized in that, also main shaft connecting axle is relatively rotatably installed with in casing, first line shaft, second line shaft, second splined shaft and cantilevered axle, main shaft connecting axle is connected with spindle drive, second splined shaft is connected with feed system transmission, main shaft connecting axle upper driving is connected with main spindle multiple spline cover and the 3rd travelling gear, main spindle multiple spline cover is corresponding with the first triple gear and transmission connected, cantilevered axle upper driving is connected with the first duplicate gear, first duplicate gear is corresponding with the 3rd travelling gear and transmission connected, first line shaft upper driving is connected with the second duplicate gear, second duplicate gear is corresponding with the first duplicate gear and transmission connected, second line shaft upper driving is connected with the second triple gear, second triple gear is corresponding with the second duplicate gear and transmission connected, second splined shaft upper driving is connected with the 3rd triple gear, 3rd triple gear is connected with gear operation system, 3rd triple gear is corresponding with the second triple gear and transmission connected.
According to described axis feeding gear, it is characterized in that, described second splined shaft is also connected with overload protection arrangement, overload protection arrangement comprises coupling band, and coupling band is fixedly connected on the second splined shaft outer end, and coupling band sidewall has through hole, this through hole internal thread is connected with jackscrew, jackscrew inner end is provided with spring and steel ball successively, and the sidewall of the second splined shaft has dug pit, and steel ball withstands in this pit; Worm shaft is provided with outside second splined shaft, worm shaft inner end is connected with conical friction by flat key, worm shaft outside conical friction has been threaded double nut, worm shaft between double nut and conical friction is externally connected with pressuring spring, conical friction is connected to the outer end of coupling band, conical friction and coupling band friction contact.
According to described axis feeding gear, it is characterized in that, described first travelling gear is arranged on the output shaft of described motor by pin.
According to described axis feeding gear, it is characterized in that, described gear operation system comprises connecting axle, connecting axle is through the sidewall of described casing, connecting axle outer end is connected with gear change hand lever by the 3rd pin, connecting axle inner end is connected with connecting plate by the second pin, and connecting plate is connected with shift fork by the first pin, and shift fork is corresponding with the first triple gear or the 3rd triple gear to be connected.
The present invention is the axis feeding gear being applicable to the light-duty radial drilling machine of Z32 uses, the present invention includes motor, casing, travelling gear, also comprise line shaft, power transmission shaft, main spindle multiple spline cover, each line shaft passes through gears meshing, to realize the power transmission between each axle, by gears meshing on main spindle multiple spline cover, make feed change system by power transmission to feed system.Simple, the easy for operation convenient power-saving of structure of the present invention, main shaft auto-feed can be realized.Casing handles shifting slide gear by shift control system and realizes each rotating speed, to reach three different feed speeds.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation of gear operation system in the present invention;
Fig. 3 is the structural representation of overload protection arrangement in the present invention.
In accompanying drawing:
1, casing; 2, the 3rd travelling gear; 3, the first duplicate gear; 4, main shaft connecting axle; 5, main spindle multiple spline cover; 6, the first triple gear; 7, the second travelling gear; 8, motor; 9, pin; 10, the first travelling gear; 11, the first splined shaft; 12, cantilevered axle; 13, the second duplicate gear; 14, the first line shaft; 15, the second triple gear; 16, the second line shaft; 17, the 3rd triple gear; 18, the second splined shaft; 19, overload protection arrangement.
20, shift fork; 21, connecting plate; 22, the first pin; 23, the second pin; 24, connecting axle; 25, the 3rd pin; 26, gear change hand lever; 27, flat key; 28, pressuring spring; 29, double nut; 30, conical friction; 31, worm shaft; 32, steel ball; 33, spring; 34, jackscrew; 35, coupling band.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the invention will be further described:
A kind of axis feeding gear, as Fig. 1, shown in Fig. 2 and Fig. 3, comprise casing 1, casing 1 extenal fixation is provided with motor 8, the first splined shaft 11 is relatively rotatably installed with in casing 1, first splined shaft 11 upper driving is connected with the second travelling gear 7 and the first triple gear 6, the output shaft upper driving of motor 8 is connected with the first travelling gear 10, first travelling gear 10 is meshed with the second travelling gear 7, also main shaft connecting axle 4 is relatively rotatably installed with in casing 1, first line shaft 14, second line shaft 16, second splined shaft 18 and cantilevered axle 12, main shaft connecting axle 4 is connected with spindle drive, second splined shaft 18 is connected with feed system transmission, main shaft connecting axle 4 upper driving is connected with main spindle multiple spline cover 5 and the 3rd travelling gear 2, main spindle multiple spline cover 5 is corresponding with the first triple gear 6 and transmission connected, cantilevered axle 12 upper driving is connected with the first duplicate gear 3, first duplicate gear 3 is corresponding with the 3rd travelling gear 2 and transmission connected, first line shaft 14 upper driving is connected with the second duplicate gear 13, second duplicate gear 13 is corresponding with the first duplicate gear 3 and transmission connected, second line shaft 16 upper driving is connected with the second triple gear 15, second triple gear 15 is corresponding with the second duplicate gear 13 and transmission connected, second splined shaft 18 upper driving is connected with the 3rd triple gear 17, 3rd triple gear 17 is connected with gear operation system, 3rd triple gear 17 is corresponding with the second triple gear 15 and transmission connected.
In the present embodiment, described second splined shaft 18 is also connected with overload protection arrangement 19, overload protection arrangement 19 comprises coupling band 35, coupling band 35 is fixedly connected on the second splined shaft 18 outer end, coupling band 35 sidewall has through hole, and this through hole internal thread is connected with jackscrew 34, and jackscrew 34 inner end is provided with spring 33 and steel ball 32 successively, the sidewall of the second splined shaft 18 has dug pit, and steel ball 32 withstands in this pit; Worm shaft 31 is provided with outside second splined shaft 18, worm shaft 31 inner end is connected with conical friction 30 by flat key 27, worm shaft 31 outside conical friction 30 has been threaded double nut 29, worm shaft 31 between double nut 29 and conical friction 30 is externally connected with pressuring spring 28, conical friction 30 is connected to the outer end of coupling band 35, conical friction 30 and coupling band 35 friction contact.Described first travelling gear 10 is arranged on the output shaft of described motor 8 by pin 9.Described gear operation system comprises connecting axle 24, connecting axle 24 is through the sidewall of described casing 1, connecting axle 24 outer end is connected with gear change hand lever 26 by the 3rd pin 25, connecting axle 24 inner end is connected with connecting plate 21 by the second pin 23, connecting plate 21 is connected with shift fork 20 by the first pin 22, and shift fork 20 is corresponding with the first triple gear 6 or the 3rd triple gear 17 to be connected.
In the present invention, first travelling gear 10 is connected in by pin 9 on the output shaft of motor 8, first travelling gear 10 engages with the second travelling gear 7, and power reached main shaft connecting axle 4(by the first triple gear 6 on the first splined shaft 11 and connects main shaft) on main spindle multiple spline cover 5, to realize main motion.
The 3rd travelling gear 2 on main shaft connecting axle 4 engages, by power transmission to feeding speed change system with the first duplicate gear 3 in cantilevered axle 12.
The first duplicate gear 3 in cantilevered axle 12 engages with the second duplicate gear 13 on the first line shaft 14, second duplicate gear 13 engages with the second triple gear 15 on the second line shaft 16 again, second splined shaft 18(connects feed system) on the 3rd triple gear 17 control to realize slippage on the second splined shaft 18 by gear operation system on casing, engage with the diverse location of the second triple gear 15 on the second line shaft 16 respectively, to realize three kinds of friction speeds of feed system, second splined shaft 18 is also furnished with overload protection arrangement 19 and is connected with feed system.
In gear operation system of the present invention, shift fork 20 is connected by the first pin 22 with connecting plate 21, connecting axle 24 is connected with connecting plate 21, gear change hand lever 26 respectively by the second pin 23, the 3rd pin 25, shift fork 20 handsetting gear is driven by gear change hand lever 26, to realize the axial slip of gear, reach the object of different gears meshing.
In feed system, produce pressure by jackscrew 34 top pressure spring 33 to compress steel ball 32, realize connecting of coupling band 35 and the second splined shaft 18, power is passed to coupling band 35 by the second splined shaft 18.Conical friction disk body 30 is connected with worm shaft 31 by flat key 27, double nut 29, pressuring spring 28 compress conical friction 30 and produce pressure to realize conical friction 30 with the inner conical surface of coupling band 35, conical friction 30 is made to produce frictional force with the inner conical surface of coupling band 35, with by power transmission to worm shaft 31, drive worm and worm gear.
As above structure achieves bidirectional protective effect, and when axis feeding surprisingly transships, conical friction 30 inner conical surface skids, and can not pass into gear-box by impulsive force, plays the effect of the unlikely damage of protection gear.If main spindle box causes transmission not normal because of unexpected; at this moment the second splined shaft 18 and coupling band 35 will make skid between coupling band 35 and the second splined shaft 18 by the combined mechanism of steel ball 32, spring 33, jackscrew 34; thus protection worm gear below, the unlikely damage of worm mechanism; more can ensure that main shaft can not unexpected feeding, strengthen the security of production.