Work table on gear scraping machine
Technical Field
The utility model relates to a scrape workstation on tooth machine.
Background
In the existing gear scraping machine, a rotating shaft of a workbench of the gear scraping machine adopts a transmission mode of a motor and a worm gear to obtain power, the rotating shaft of the mechanical transmission mode obtains a lower rotating speed, and the machined gear has the problems of low precision, low machining efficiency and the like.
Disclosure of Invention
The utility model discloses it is low to solve the pivot rotational speed of the workstation on the current tooth machine of scraping, leads to scraping the technical problem that tooth machine machining efficiency is low.
The utility model provides a technical scheme that above-mentioned technical problem adopted does:
the utility model discloses a workbench on a gear scraping machine, which comprises a seat body and a rotating shaft arranged in the seat body, wherein the bottom end of the rotating shaft is connected with an oil cylinder; be fixed with the rotor in the pivot, be equipped with in the pedestal and correspond the stator that matches with the rotor, from top to bottom in proper order the cover is equipped with upper bearing, well bearing and lower bearing in the pivot, and upper bearing, well bearing are in the top of rotor, and the lower bearing is in the below of rotor, the lower extreme position of upper end, the lower extreme of well bearing of upper bearing, lower bearing is equipped with upper bearing regulating block subassembly, well bearing regulating block subassembly, lower bearing regulating block subassembly respectively, upper bearing regulating block subassembly has the decurrent effort of axial to the upper end of upper bearing, and well bearing regulating block subassembly has the ascending effort of axial to the lower extreme of bearing, and lower bearing regulating block subassembly has the ascending effort of axial to the lower extreme of lower bearing.
The upper bearing and the lower bearing are both angular contact ball bearings.
The upper bearing adjusting block assembly comprises an inner ring adjusting block and an outer ring adjusting block, the inner ring adjusting block is movably abutted against the upper end face of the inner ring of the upper bearing, the outer ring adjusting block is fixed on the base body through a screw, and the outer ring adjusting block is abutted against the upper end face of the outer ring of the upper bearing.
The two middle bearings are provided with an inner spacer sleeve and an outer spacer sleeve respectively between two inner rings and two outer rings of the two middle bearings; wherein the inner ring and the outer ring of the middle bearing positioned above are respectively matched with the inner ring and the outer ring of the upper bearing; the middle bearing adjusting block assembly comprises a check ring arranged on the rotating shaft in a sleeved mode on the bottom surface of the inner ring of the middle bearing below, a middle nut is connected to the rotating shaft in a threaded mode, the middle nut upwards abuts against the check ring, so that the check ring abuts against the bottom surface of the inner ring of the middle bearing, and the check ring, the inner ring of the middle bearing and the rotating shaft rotate synchronously.
The outer peripheral surface of the retainer ring is provided with a downward flange, an annular oil collecting groove is arranged at the position matched with the flange in the seat body, and the flange is positioned in the annular oil collecting groove, so that a Z-shaped diversion groove is formed between the annular oil collecting groove and the flange, and the seat body is provided with an oil guide hole communicated with the annular oil collecting groove.
The lower bearing adjusting block assembly comprises a large flange fixed at the bottom end of the seat body, a first hole and a second hole are arranged in the large flange, the first hole is positioned above the second hole and is communicated with the second hole, the aperture of the first hole is smaller than that of the second hole, so that a step surface is formed between the first hole and the second hole, the lower bearing is arranged in the second hole, and the upper end of the outer ring of the lower bearing is abutted against the step surface; the upper end and the lower end of the inner ring of the lower bearing are respectively provided with an inner ring lower adjusting block A and an inner ring lower adjusting block B, the inner ring lower adjusting block A and the inner ring lower adjusting block B are both sleeved on the rotating shaft, the upper end of the inner ring lower adjusting block A abuts against a step of the rotating shaft, the rotating shaft is in threaded connection with a lower nut, the lower nut is matched with the lower end of the inner ring lower adjusting block B, and has an axially upward abutting acting force on the inner ring lower adjusting block B; the lower end of the large flange is fixedly provided with a small flange, the upper end of the small flange is provided with an outer ring lower adjusting block, and the outer ring lower adjusting block upwards supports against the lower end of the outer ring of the lower bearing.
The inner ring lower adjusting block A and the inner ring lower adjusting block B are consistent in structure and respectively comprise a ring body and an annular groove arranged on the outer peripheral surface of the ring body, and the outer peripheral surface of the ring body is respectively attached and sealed with the inner wall of the hole at the corresponding mounting position.
Be equipped with between pivot and the pedestal and prevent getting rid of oily device, prevent getting rid of oily device including installing in the pivot keep off the oil jacket, install the oil guide sleeve on the pedestal, the oil guide sleeve establishes the ring and leads oily platform including inlaying, inlay and establish the ring and match in the inside that keeps off the oil jacket, and inlay and establish the clearance between the outer wall of ring and the inner wall that keeps off the oil jacket, it is in the below that keeps off the oil jacket to lead oily platform, and leads the mesa of oily platform and be the slope downwards.
The oil blocking sleeve comprises an installation seat and an annular sleeve, the inner wall of the installation seat is matched and attached to the outer peripheral surface of the flange of the rotating shaft, an O-shaped ring is arranged on the outer peripheral surface of the flange, and the O-shaped ring is attached to the inner wall of the installation seat in a sealing mode; the embedded ring is matched in the wrapping range of the annular sleeve.
The oil guide table is fixed on the base body through screws, and O-shaped rings are arranged between the oil guide table and the base body and between the embedded ring and the base body.
The inner wall of the oil retaining sleeve sequentially forms a first oil retaining surface and a second oil retaining surface from top to bottom, and the inner diameter of the first oil retaining surface is smaller than that of the second oil retaining surface, so that a step is formed between the first oil retaining surface and the second oil retaining surface.
An oil filling hole communicated with the upper bearing is arranged in the rotating shaft.
The utility model has the advantages that:
compared with the prior art, the workbench on the gear scraping machine of the utility model has the advantages that the tightness degree of the inner ring and the outer ring of the upper bearing, the middle bearing and the lower bearing is just moderate through the axial acting force of the upper bearing adjusting block component, the middle bearing adjusting block component and the lower bearing adjusting block component on each bearing, so that the running smoothness of the upper bearing, the middle bearing and the lower bearing is high, and the service life is long;
compared with the prior art, the working table on the gear scraping machine of the utility model has the advantages that the rotor is arranged on the rotating shaft, and the stator matched with the rotor is arranged in the seat body, so that the rotating shaft is directly driven by the motor, and the rotating speed and the working efficiency are improved;
compared with the prior art, the utility model discloses a workstation on gear scraping machine through upper bearing adjusting block subassembly, lower bearing adjusting block subassembly for the hole of the inner circle of upper bearing, lower bearing is hugged closely the outer wall of pivot all the time, and upper bearing, lower bearing are angular contact ball bearing, thereby make the concentricity of upper bearing, pivot, lower bearing keep unanimous, improve the precision when the pivot is rotatory, then improve gear scraping machine's machining precision;
compared with the prior art, the working table on the gear scraping machine of the utility model has the advantages that as the rotating shaft rotates at high speed, grease such as lubricating oil is inevitably splashed outwards, and therefore, the oil splashing prevention device is arranged between the rotating shaft and the base body, so that the grease flows outwards along the gap between the outer wall of the embedded ring and the inner wall of the oil baffle sleeve and finally flows out from the table top of the oil guide table which is inclined downwards;
compared with the prior art, the utility model discloses a scrape workstation on tooth machine, lead the oilhole in addition on the pedestal, be in order to avoid between pedestal and the pivot, the lubricating oil that each bearing position's lubricating oil too much leads to flows into rotor, stator position, influences the normal operating of rotor, stator, and too much lubricating oil outwards throws away downwards along retaining ring, turn-ups, makes lubricating oil flow into annular oil catch bowl then, finally follows and leads the oilhole and discharge.
Drawings
FIG. 1 is a sectional view of the structure of a worktable on the gear scraping machine of the utility model;
FIG. 2 is an enlarged view of portion A of FIG. 1;
FIG. 3 is an enlarged view of portion B of FIG. 1;
fig. 4 is an enlarged view of a portion C of fig. 1.
Detailed Description
The invention will be described in further detail with reference to the following drawings and detailed description:
referring to fig. 1 to 4, the utility model provides a workbench on a gear scraping machine, which comprises a base body 1 and a rotating shaft 2 arranged in the base body 1, wherein the bottom end of the rotating shaft 2 is connected with an oil cylinder 3; a rotor 4 is fixed on the rotating shaft 2, a stator 5 correspondingly matched with the rotor 4 is arranged in the base body 1, an upper bearing 6, a middle bearing 7 and a lower bearing 8 are sequentially sleeved on the rotating shaft 2 from top to bottom, the upper bearing 6 and the middle bearing 7 are positioned above the rotor 4, the lower bearing 8 is positioned below the rotor 4, the upper bearing 6 and the lower bearing 8 are both angular contact ball bearings, the upper end of the upper bearing 6, the lower end of the middle bearing 7 and the lower end of the lower bearing 8 are respectively provided with an upper bearing adjusting block component 9, a middle bearing adjusting block component 10 and a lower bearing adjusting block component 11, the upper bearing adjusting block assembly 9 has an axial downward acting force on the upper end of the upper bearing 6, the middle bearing adjusting block assembly 10 has an axial upward acting force on the lower end of the middle bearing 7, and the lower bearing adjusting block assembly 11 has an axial upward acting force on the lower end of the lower bearing 8.
The upper bearing adjusting block assembly 9 comprises an inner ring upper adjusting block 12 and an outer ring upper adjusting block 13, the inner ring upper adjusting block 12 is movably abutted against the upper end face of the inner ring of the upper bearing 6, the outer ring upper adjusting block 13 is fixed on the base body 1 through screws, and the outer ring upper adjusting block 13 is abutted against the upper end face of the outer ring of the upper bearing 6.
The number of the middle bearings 7 is two, and an inner spacer 14 and an outer spacer 15 are respectively arranged between two inner rings and two outer rings of the two middle bearings 7; wherein, the inner ring and the outer ring of the middle bearing 7 positioned above are respectively matched with the inner ring and the outer ring of the upper bearing 6; the middle bearing adjusting block assembly 10 comprises a check ring 16 which is arranged on the bottom surface of the inner ring of the middle bearing 7 below and sleeved on the rotating shaft 2, a middle nut 17 is screwed on the rotating shaft 2, the middle nut 17 upwards supports against the check ring 16, so that the check ring 16 supports against the bottom surface of the inner ring of the middle bearing 7, and the check ring 16, the inner ring of the middle bearing 7 and the rotating shaft 2 synchronously rotate.
The outer peripheral surface of the retainer ring 16 is provided with a downward flange 18, an annular oil collecting groove 19 is arranged at a position matching the flange 18 in the seat body 1, and the flange 18 is positioned in the annular oil collecting groove 19, so that a Z-shaped flow guide groove 20 is formed between the annular oil collecting groove 19 and the flange 18, and the seat body 1 is provided with an oil guide hole 21 communicated with the annular oil collecting groove 19.
The lower bearing adjusting block assembly 11 comprises a large flange 22 fixed at the bottom end of the seat body 1, a first hole 23 and a second hole 24 are arranged in the large flange 22, the first hole 23 is positioned above the second hole 24 and is communicated with the second hole 24, the aperture of the first hole 23 is smaller than that of the second hole 24, so that a step surface 25 is formed between the first hole 23 and the second hole 24, the lower bearing 8 is arranged in the second hole 24, and the upper end of the outer ring of the lower bearing 8 is abutted against the step surface 25; an inner ring lower adjusting block A26 and an inner ring lower adjusting block B27 are respectively arranged at the upper end and the lower end of the inner ring of the lower bearing 8, the inner ring lower adjusting block A26 and the inner ring lower adjusting block B27 are sleeved on the rotating shaft 2, the upper end of the inner ring lower adjusting block A26 abuts against a step 28 of the rotating shaft 2, a lower nut 29 is screwed on the rotating shaft 2, the lower nut 29 is matched with the lower end of the inner ring lower adjusting block B27, and upward abutting acting force is provided for the inner ring lower adjusting block B27; the lower end of the large flange 22 is fixedly provided with a small flange 30, the upper end of the small flange 30 is provided with an outer ring lower adjusting block 31, and the outer ring lower adjusting block 31 upwards abuts against the lower end of the outer ring of the lower bearing 8.
The inner ring lower adjusting block A26 and the inner ring lower adjusting block B27 are consistent in structure and respectively comprise a ring body 32 and an annular groove 33 arranged on the outer peripheral surface of the ring body 32, and the outer peripheral surface of the ring body 32 is respectively attached and sealed with the inner wall of a hole at a corresponding mounting position.
Be equipped with between pivot 2 and the pedestal 1 and prevent getting rid of oily device, prevent getting rid of oily device including installing fender oil jacket 34 in pivot 2, installing the oil guide sleeve 35 on pedestal 1, oil guide sleeve 35 establishes ring 36 and leads oily platform 37 including inlaying, inlay and establish ring 36 and match in the inside of keeping off oil jacket 34, and inlay and establish and have clearance 38 between the outer wall of ring 36 and the inner wall of keeping off oil jacket 34, it is in the below of keeping off oil jacket 34 to lead oily platform, and leads mesa 39 of oily platform 37 and be the slope downwards.
The oil blocking sleeve 34 comprises an installation seat 40 and an annular sleeve 41, the inner wall of the installation seat 40 is matched and attached to the outer peripheral surface of a flange 42 of the rotating shaft 2, an O-shaped ring 43 is arranged on the outer peripheral surface of the flange 42, and the O-shaped ring 43 is attached to the inner wall of the installation seat 40 in a sealing mode; the insert ring 36 fits within the envelope of the annular sleeve 41.
The oil guide table 37 is fixed on the seat body 1 through screws, and O-rings 43 are arranged between the oil guide table 37 and the seat body 1 and between the embedded ring 36 and the seat body 1.
The inner wall of the oil retaining sleeve 34 sequentially forms a first oil retaining surface 44 and a second oil retaining surface 45 from top to bottom, and the inner diameter of the first oil retaining surface 44 is smaller than that of the second oil retaining surface 45, so that a step 48 is formed between the first oil retaining surface 44 and the second oil retaining surface 45.
An oil filling hole 46 communicated with the upper bearing 6 is arranged in the rotating shaft 2. Meanwhile, an oil hole (not visible in the figure) is also formed in the position of the lower bearing, and the rotating shaft and each bearing can be lubricated through the oil hole 46, so that normal work is guaranteed.
The following is to the working principle of the working table on the gear scraping machine of the utility model:
the utility model discloses a scrape workstation on tooth machine sets up rotor 4, stator 5 through counter shaft 2 to make pivot 2 directly become motor output shaft, thereby make the operating speed of pivot 2 improve greatly, improve machining efficiency then.
The utility model discloses an upper bearing 6, lower bearing 8 is for having radial positioning function's angular contact ball bearing, that is to say, the shaft hole of the inner circle of bearing is the slope, it is corresponding, pivot 2 is last to have corresponding conical surface 47, thereby make pivot 2 and upper bearing 6, lower bearing 8's assembly matching degree, the concentricity is higher, when the equipment, in order to reach upper bearing 6, well bearing 7, lower bearing 8's elasticity is moderate, it is special, with adjusting block 13 on the outer lane of upper bearing adjusting block subassembly 9, adjusting block 31 under the outer lane of the small flange 30 of lower bearing adjusting block subassembly 11, 1mm is reserved more to the processing height of adjusting block 31, like this, when the assembly, we all with pivot 2, well bearing 7, lower bearing 8, upper bearing adjusting block subassembly 9, well bearing adjusting block subassembly 10, the inner spacer 14 between lower bearing adjusting block subassembly 11 and two well bearings 7 and outer spacer 15, all with pivot 2, After the seat body 1 is installed in place, firstly, the centering nut 17 and the lower nut 29 are screwed, the middle nut 17 axially and upwards abuts against the retainer ring 16, so that the inner rings of the middle bearing 7 and the upper bearing 6 are mutually extruded and tightly abut against the corresponding inner spacer 14 and the inner ring upper adjusting block 12, and then the outer ring upper adjusting block 13 of the upper bearing adjusting block component 9 is fastened; and the lower nut 29 axially and upwards presses the inner ring lower adjusting block B27, so that the inner ring lower adjusting block A26, the inner ring of the lower bearing 8 and the inner ring lower adjusting block B27 are abutted to the proper positions, then the small flange 30 is installed, finally the rotating shaft 2 is rotated to ensure the smooth rotation of the rotating shaft 2, at this time, the inner ring assembly positions of all the bearings are explained to be proper positions, at this time, a tool is adopted to detect a gap between the lower end surface of the outer ring upper adjusting block 13 and the upper end surface of the outer ring of the upper bearing 6 and a gap between the upper end surface of the outer ring lower adjusting block 31 and the lower end surface of the outer ring of the lower bearing 8, and as the 1mm allowance is reserved during processing, the gap inevitably exists, after the data of the gap are measured, the lower end surface of the outer ring upper adjusting block 13 and the upper end surface of the outer ring lower adjusting block 31 are polished, the polished thickness is equal to the data of the gap, The lower adjusting block 31 of the outer ring is assembled back, namely the outer rings of the upper bearing 6 and the lower bearing 8 are properly abutted, so that the purpose of moderate tightness of each bearing can be achieved.
After the rotating speed of the rotating shaft 2 is increased, lubricating oil on the workbench is inevitably splashed, so the oil splashing prevention device is specially designed, and the lubricating oil flows downwards along the inner wall of the oil blocking sleeve 34 and the outer wall of the oil guide sleeve 35.
The above detailed description is made on the working table on the gear scraping machine provided by the embodiment of the present invention, and the specific examples are applied herein to explain the principle and the implementation manner of the present invention, and the description of the above embodiments is only used to help understand the technical solution disclosed by the present invention; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the specific implementation and application scope, to sum up, the content of the present specification should not be understood as the limitation of the present invention.