CN202493604U - Aligning device for bevel gears at two ends of gear shaft - Google Patents
Aligning device for bevel gears at two ends of gear shaft Download PDFInfo
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- CN202493604U CN202493604U CN2012201295891U CN201220129589U CN202493604U CN 202493604 U CN202493604 U CN 202493604U CN 2012201295891 U CN2012201295891 U CN 2012201295891U CN 201220129589 U CN201220129589 U CN 201220129589U CN 202493604 U CN202493604 U CN 202493604U
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Abstract
The utility model relates to an aligning device for bevel gears at two ends of a gear shaft. The aligning device comprises the gear shaft, a first bevel gear and a second bevel gear, wherein the first bevel gear and the second bevel gear are coaxially arranged at two ends of the gear shaft, a first location hole and a second location hole are respectively arranged on two end faces of the gear shaft, and the first location hole and the second location hole are coaxially arranged at two ends of the gear shaft. Ends of the bevel gears and the gear shaft are connected in a mode of two pin on one face, so that a key groove connection method and the like in the prior art are substituted. Key grooves are prevented from being added on the gear shaft and the bevel gears, so that strength of the gear shaft and the bevel gears is guaranteed, the size of the gear shaft and the bevel gears is smaller, the weight is further reduced, and transmission efficiency is improved.
Description
Technical field
The utility model relates to a kind of device that is used for coaxial centering, the helical gear centralising device in motor gear axle two ends in especially a kind of slurry pump.
Background technique
Drilling mud pump is described as the heart of rig, gets out first mouthful of rig with commercial value from the whole world and uses drilling mud pump to begin, and the history in more than 100 year has been arranged.This 100 for many years, people constantly explore, it is big to be devoted to develop power, compact structure, lightweight slurry pump.
In many improvement, the gear shaft of minimizing slurry pump motor and the mode of the Transmitted chains progression between the slurry pump bent axle are particularly evident in the effect of aspects such as weight reduction, raising transmission efficiency.As more satisfactory scheme, between the bent axle of frequency conversion gear shaft and slurry pump,, satisfy the transmission demand of slurry pump through the transmission of one-level helical gear pair.
Based on the mode of helical gear pair transmission, below two kinds be structure more preferably:
1, at the two ends of slurry pump motor gear axle a pair of helical gear pair is set all, can optimizes the stressing conditions at slurry pump motor gear axle two ends.
From the consideration of stress balance, single-ended stressed for fear of gear shaft, in the ideal case, the stressed balance more that a pair of helical gear pair can make the gear shaft two ends is all installed at the two ends of gear shaft.
The normal at present method of scoring that adopts realizes auxiliary assembling; That is: at first at the gear shaft two ends along the same centering reference line that radially marks; And then the corresponding centering reference line that on two helical gears, draws, after the helical gear heat temperature raising, cover is packed on the gear shaft; Again gear shaft, helical gear centering reference line are aimed at, be cooled to and realize assembling and centering roughly behind the normal temperature.
The helical gear at gear shaft two ends is difficult to accurately align in installation process, error is big but owing to be divided into; Therefore the helical gear pair at gear shaft two ends is difficult to realize synchromesh; The life-span of whole stressing conditions and helical gear pair is all undesirable, and such preferred structure can not apply to practice well.
2, with the conical surface do not add key, mode through interference fit replaces key to connect; Cancellation is arranged at the keyway on slurry pump motor gear axle and the helical gear; Can be under the situation that guarantees gear shaft intensity, reduce gear shaft, and helical gear size, thereby further weight reduction, improve transmission efficiency.
Connect but adopt interference fit to substitute key, still exist the helical gear at gear shaft two ends in installation process, to be difficult to the problem that accurately aligns, assembly precision is not high.
Can therefore, how helical gear accurately is assemblied in the two ends of gear shaft and the helical gear that is positioned at the gear shaft two ends is rotated synchronously, be simplify the slurry pump structure, alleviate its weight and improve the key issue of transmission efficiency.
The model utility content
The technical problem that the utility model will solve is to overcome the above-mentioned deficiency of existing technology, provides a kind of simple in structure, aligns, locatees the helical gear centralising device in gear shaft two ends that is used for slurry pump accurately.
For solving the problems of the technologies described above, the utility model provides following technological scheme:
The helical gear centralising device in a kind of gear shaft two ends; Comprise gear shaft and coaxial first helical gear and second helical gear that is arranged at the gear shaft two ends; One end of said gear shaft is provided with first positioning hole; The other end of said gear shaft is provided with second positioning hole, said first positioning hole and the coaxial setting of second positioning hole; Said first helical gear is provided with the 3rd positioning hole, and said second helical gear is provided with the 4th positioning hole; Said the 3rd positioning hole and the coaxial setting of the 4th positioning hole; Also comprise first positioning plate and second positioning plate; Said first positioning plate is provided with first penetration hole and the 3rd penetration hole, and said second positioning plate is provided with second penetration hole and the 4th penetration hole; Said first penetration hole is coaxial with first positioning hole, and said first positioning plate is provided with the first rhombus pin, and the said first rhombus pin is connected first positioning plate through first penetration hole and first positioning hole with gear shaft; Said the 3rd penetration hole is coaxial with the 3rd positioning hole, and said first positioning plate is provided with first straight pin, and said first straight pin is connected first positioning plate through the 3rd penetration hole and the 3rd positioning hole with first helical gear; Said second penetration hole is coaxial with second positioning hole, and said second positioning plate is provided with the second rhombus pin, and the said second rhombus pin is connected second positioning plate through second penetration hole and second positioning hole with gear shaft; Said the 4th penetration hole is coaxial with the 4th positioning hole, and said second positioning plate is provided with second straight pin, and said second straight pin is connected second positioning plate through the 4th penetration hole and the 4th positioning hole with second helical gear.
Adopt such structure; Structure through " plane and two pits " is connected with the gear shaft end helical gear; Substituted in the existing structure Placements such as keyway, need not gear shaft, and helical gear on set up keyway, help guaranteeing gear shaft, and helical gear intensity; And can do gear shaft and helical gear size littler, thereby further weight reduction, improve transmission efficiency.
Preferably; Said first positioning plate is provided with the Three Diamond pin; Said second positioning plate is provided with the 4th rhombus pin, and said first positioning plate is connected with said first helical gear through said Three Diamond pin, and said second positioning plate is connected with said second helical gear through said the 4th rhombus pin.
Adopt such structure; Straight pin when locating by aforementioned " plane and two pits "; Set up between helical gear and the positioning plate after one group of rhombus pin, can between helical gear and positioning plate, form " plane and two pits " location, make helical gear and positioning plate be connected as a whole before being inserted in to gear shaft; Limited the relative movement between helical gear and the positioning plate, the Location accuracy when helping improving follow-up the assembling.
Preferably, the said first helical gear pressure line and the said second helical gear pressure line intersect at said first helical gear and the symmetry plane of second helical gear on said gear shaft, and said symmetry plane is perpendicular to the axis of said gear shaft.
Gear shaft when rotated, the helical gear at two ends all rotates synchronously, avoids the staggered engagement of two ends helical gear, thereby has improved two ends helical gear working life; And optimized the stressing conditions of gear shaft, avoid because of the two ends helical gear rotate asynchronous, thereby the stressing conditions of having optimized gear shaft has improved its working life.
Need to prove that said symmetry plane also is the axial middle vertical plane of gear shaft, said first helical gear, second helical gear are symmetricly set in the gear shaft two ends with respect to said symmetry plane.
The said first helical gear pressure line and the second helical gear pressure line intersect at the symmetry plane of said gear shaft, also are that first helical gear that is positioned at the gear shaft two ends, the elongation line of the second helical gear helix angle intersect on the symmetry plane.
When the helical gear at gear shaft two ends is all adopted centering connection in such a way; When having guaranteed that said the 3rd positioning hole and the 4th positioning hole are coaxial; Said first helical gear and the second helical gear flank profil line have improved accuracy of alignment overlapping perpendicular to the projection in the plane of gear shaft axis.
Preferably, respectively be provided with at least one screw on said first positioning plate and second positioning plate, said first positioning plate is connected with first helical gear, second helical gear respectively through screw with second positioning plate.
Adopt such structure, increase stability of structure, further improve accuracy of alignment.
Preferably, said first positioning plate is provided with first screw and second screw, and said first screw, second screw are symmetrical set with respect to the first helical gear center; Said second positioning plate is provided with the 3rd screw and the 4th screw, and said the 3rd screw, the 4th screw are symmetrical set with respect to the second helical gear center.
Adopt such structure, can further increase stability of structure, and improve the dynamic balance accuracy at gear shaft two ends, optimize the stressing conditions of gear shaft.
Preferably; The said first helical gear endoporus is taper; The said second helical gear endoporus is taper, and when the said gear shaft one end profile and the said first helical gear endoporus were suitable, the said gear shaft the other end profile and the said second helical gear endoporus were suitable.
Adopt the conical surface not add the mode of the big magnitude of interference of key, the mode of combination " plane and two pits " is assembled, and has that Conncetion cimension is little, transmitting torque big, the beneficial effect of easy accessibility.
Preferably, the said first rhombus pin and the first penetration hole interference fit, the said first rhombus pin and the first positioning hole Spielpassung; Said first straight pin and the 3rd penetration hole interference fit, said first straight pin and the 3rd positioning hole Spielpassung; The said second rhombus pin and the second penetration hole interference fit, the said second rhombus pin and the second positioning hole Spielpassung; Said second straight pin and the 4th penetration hole interference fit; Said second straight pin and the 4th positioning hole Spielpassung.
Adopt such structure, easy accessibility and connection are stable.
Preferably, said first rhombus pin and Three Diamond pin are symmetrical set with respect to the first helical gear center; Said second rhombus pin and the 4th rhombus pin are symmetrical set with respect to the second helical gear center.
Adopt such structure, can further increase stability of structure, and improve the dynamic balance accuracy at gear shaft two ends, optimize the stressing conditions of gear shaft.
The production method of the helical gear centralising device in a kind of said gear axle two ends; May further comprise the steps: a, processing first positioning hole and second positioning hole: at first gear shaft is clamped on the numerical control machine tool, then feed and process first positioning hole and second positioning hole at the two ends of gear shaft;
B, with said first helical gear and the alignment of the said second helical gear flank profil line; Said first helical gear and the said second helical gear flank profil line are intersected on said first helical gear and the said second helical gear midplane, reprocess said the 3rd positioning hole and said the 4th positioning hole; C, on first positioning plate and second positioning plate, process first penetration hole, the 3rd penetration hole and second penetration hole, the 4th penetration hole.
Synchronous processing goes out first positioning hole and second positioning hole on numerical control machine tool, can guarantee the coaxality between first positioning hole and second positioning hole; Simultaneously; After first helical gear, the second helical gear flank profil line are aimed at, process the 3rd positioning hole and the 4th positioning hole, guarantee that two helical gears are after being assemblied in the gear shaft two ends; The flank profil line overlaps in the plane perpendicular to gear shaft, guarantees that two helical gears rotate with gear shaft synchronously; And the hole pitch of penetration hole is easy to control on the processing penetration hole easy processing on positioning plate, two positioning plates.
A kind of assembly method of utilizing the above-mentioned helical gear centralising device in gear shaft two ends; May further comprise the steps: a, the said first rhombus pin are assemblied on said first positioning plate with the mode of interference fit; Said first straight pin is assemblied on said first positioning plate with the mode of interference fit, and said Three Diamond pin is assemblied on said first positioning plate with the mode of interference fit; The said second rhombus pin is assemblied on said second positioning plate with the mode of interference fit; Said second straight pin is assemblied on said second positioning plate with the mode of interference fit, and said the 4th rhombus pin is assemblied on said second positioning plate with the mode of interference fit;
B, said first positioning plate and the said first helical gear pin joint, said second positioning plate and the said second helical gear pin joint, wherein, said first straight pin and the said first helical gear Spielpassung, said Three Diamond pin and the said first helical gear Spielpassung; Said second straight pin and the said second helical gear Spielpassung, said the 4th rhombus pin and the said second helical gear Spielpassung;
C, first helical gear, second helical gear are heated to more than 200 ℃ and insulation, and holding time was more than or equal to 20 minutes; Said first helical gear after d, the heating is assemblied in an end of said gear shaft through the said first rhombus pin on said first positioning plate; Said second helical gear after the heating is assemblied in the other end of said gear shaft through the said second rhombus pin on said second positioning plate; E, be cooled to normal temperature.
Adopt such method, have beneficial effect easy to assembly, that accuracy of alignment is high.
Preferably, after the said step e, first positioning plate and second positioning plate are dismantled from the two ends of gear shaft.After accomplishing the centering assembling, positioning plate is separated, can further improve transmission efficiency, and alleviate deadweight.
Compared with prior art; The beneficial effect of the utility model is: the structure through " plane and two pits " is connected with the gear shaft end helical gear; Substituted in the existing structure Placements such as keyway, need not gear shaft, and helical gear on set up keyway, help guaranteeing gear shaft, and helical gear intensity; And can do gear shaft and helical gear size littler, thereby further weight reduction, improve transmission efficiency.
Description of drawings
Fig. 1 is the exploded perspective view of the helical gear centralising device in the utility model gear shaft two ends;
Fig. 2 is the schematic representation of the helical gear centralising device in the utility model gear shaft two ends;
Fig. 3 is the side view of wherein a kind of mode of execution of the helical gear centralising device in the utility model gear shaft two ends;
Fig. 4 is the local enlarged diagram of wherein a kind of mode of execution of the helical gear centralising device in the utility model gear shaft two ends;
Fig. 5 is the schematic representation of a kind of mode of execution of the helical gear centralising device in the utility model gear shaft two ends;
Fig. 6 is the schematic representation of the another kind of mode of execution of the helical gear centralising device in the utility model gear shaft two ends.
Reference character is following: gear shaft-1; First positioning hole-1a; Second positioning hole-1b; First helical gear-2; The 3rd positioning hole-2a; Second helical gear-3; The 4th positioning hole-3a; First positioning plate-4; First penetration hole-4a; The 3rd penetration hole-4b; Second positioning plate-5; Second penetration hole-5a; The 4th penetration hole-5b; First rhombus pin-6a; Second rhombus pin-6b; First straight pin-7a; Second straight pin-7b; First screw-8a; Second screw-8b; The 3rd screw-8c; The 4th screw-8d; Three Diamond pin-9a; The 4th rhombus pin-9b.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is further described.
The mode of execution of the utility model is not limited to following examples, all belongs within the protection domain of the utility model in the various variations of making under the prerequisite that does not break away from the utility model aim.
See also Fig. 1 to Fig. 6, the helical gear centralising device in present embodiment gear shaft two ends comprises gear shaft 1 and coaxial first helical gear 2 and second helical gear 3 that is arranged at gear shaft 1 two ends,
The both ends of the surface of said gear shaft 1 are respectively arranged with the first positioning hole 1a and the second positioning hole 1b, said first positioning hole 1a and the coaxial two ends that are arranged at gear shaft 1 of the second positioning hole 1b; The first positioning hole 1a and the second positioning hole 1b can add the synchronous processing in man-hour through numerical control machine tool, thereby guarantee the coaxial precision between the first positioning hole 1a and the second positioning hole 1b.
Said first helical gear 2 is provided with the 3rd positioning hole 2a, and said second helical gear 3 is provided with the 4th positioning hole 3a; The axis of said the 3rd positioning hole 2a, the 4th positioning hole 3a all with the parallel axes of gear shaft 1, said the 3rd positioning hole 2a and the coaxial setting of the 4th positioning hole 3a; Also comprise first positioning plate 4 and second positioning plate 5; Said first positioning plate 4 is provided with the first penetration hole 4a and the 3rd penetration hole 4b, and said second positioning plate 5 is provided with the second penetration hole 5a and the 4th penetration hole 5b; The said first penetration hole 4a is coaxial with the first positioning hole 1a, and said first positioning plate 4 is provided with the first rhombus pin 6a, and the said first rhombus pin 6a passes through the first penetration hole 4a and the first positioning hole 1a, first positioning plate 4 is connected with gear shaft 1; Said the 3rd penetration hole 4b is coaxial with the 3rd positioning hole 2a, and said first positioning plate 4 is provided with the first straight pin 7a, and the said first straight pin 7a passes through the 3rd penetration hole 4b and the 3rd positioning hole 2a, first positioning plate 4 is connected with first helical gear 2; The said second penetration hole 5a is coaxial with the second positioning hole 1b, and said second positioning plate 5 is provided with the second rhombus pin 6b, and the said second rhombus pin 6b passes through the second penetration hole 5a and the second positioning hole 1b, second positioning plate 5 is connected with gear shaft 1; Said the 4th penetration hole 5b is coaxial with the 4th positioning hole 3a, and said second positioning plate 5 is provided with the second straight pin 7b, and the said second straight pin 7b passes through the 4th penetration hole 5b and the 4th positioning hole 3a, second positioning plate 5 is connected with second helical gear 3.Carry out " plane and two pits " location through above-mentioned parts, simple in structure, easy to assembly, accuracy of alignment is high.
In all the other mode of executions, first helical gear 2 and second helical gear 3 be spur gear also, and suitable with above-mentioned assembling centering structure, can accomplish the centering assembling equally.
The production method of the helical gear centralising device in present embodiment said gear shaft two ends may further comprise the steps:
A, the processing first positioning hole 1a and the second positioning hole 1b:
At first with gear shaft 1 clamping on numerical control machine tool, under the situation that does not change the clamping state, the control cutter moves, feed, and processes the first positioning hole 1a and the second positioning hole 1b at the two ends of gear shaft 1;
Because only clamping is once on numerical control machine tool for gear shaft 1; Accomplish after the clamping; Promptly successively process the first positioning hole 1a and the second positioning hole 1b, therefore, process the first positioning hole 1a with all the other methods and compare with the second positioning hole 1b at its two ends; Adopt such method, make the first positioning hole 1a and the second positioning hole 1b have higher coaxality.
B, processing the 3rd positioning hole 2a and the 4th positioning hole 3a: with the flank profil line alignment of first helical gear 2 and second helical gear 3, reprocess the 3rd positioning hole 2a and the 4th positioning hole 3a earlier;
Promptly earlier first helical gear 2 and second helical gear 3 are stacked and its outer contour is alignd each other; Again along helical gear axial drilling; Once boring promptly and respectively forms the 3rd positioning hole 2a, the 4th positioning hole 3a on first helical gear 2, second helical gear 3, has guaranteed the precision after the assembling.
C, on first positioning plate 4 and second positioning plate 5, process the first penetration hole 4a, the 3rd penetration hole 4b and the second penetration hole 5a, the 4th penetration hole 5b.
During according to coaxial assembling; The distance between shafts of the distance between shafts of the first positioning hole 1a and the 3rd positioning hole 2a or the second positioning hole 1b and the 4th positioning hole 3a; With first positioning plate 4 and second positioning plate 5 superimposed after, on first positioning plate 4 and second positioning plate 5, get out the first penetration hole 4a, the 3rd penetration hole 4b and the second penetration hole 5a, the 4th penetration hole 5b.
Utilize the assembly method of the helical gear centralising device in gear shaft two ends of present embodiment, may further comprise the steps:
At first, positioning plate and rhombus pin, straight pin that " plane and two pits " located are assembled into one earlier, and be concrete:
A, the first rhombus pin 6a is assemblied on first positioning plate 4 with the mode of interference fit, the first straight pin 7a is assemblied on first positioning plate 4 with the mode of interference fit, and Three Diamond pin 9a is assemblied on first positioning plate 4 with the mode of interference fit; The second rhombus pin 6b is assemblied on second positioning plate 5 with the mode of interference fit, and the second straight pin 7b is assemblied on second positioning plate 5 with the mode of interference fit, and the 4th rhombus pin 9b is assemblied on second positioning plate 5 with the mode of interference fit.
Be connected as a single entity helical gear and positioning plate again, concrete:
B, with first positioning plate 4 and first helical gear, 2 pin joints, second positioning plate 5 and second helical gear, 3 pin joints, wherein, the first straight pin 7a and first helical gear, 2 Spielpassung, Three Diamond pin 9a and first helical gear, 2 Spielpassung; The second straight pin 7b and second helical gear, 3 Spielpassung, the 4th rhombus pin 9b and second helical gear, 3 Spielpassung;
The enlarged in size that heats up again, so that assembling is concrete:
C, be heated to more than 200 ℃ first helical gear 2, second helical gear 3 and insulation, holding time was more than or equal to 20 minutes;
D, first helical gear 2 after will heating are through the location of the first rhombus pin 6a on first positioning plate 4 and be assemblied in an end of gear shaft 1; Second helical gear 3 after the heating is located and is assemblied in the other end of gear shaft 1 through the second rhombus pin 6b on second positioning plate 5;
E, be cooled to normal temperature.
After accomplishing aforesaid operations, can first positioning plate 4 and second positioning plate 5 be removed.
See also Fig. 1 to Fig. 6; In this mode of execution; First positioning plate 4 is provided with Three Diamond pin 9a, and second positioning plate 5 is provided with the 4th rhombus pin 9b, and first positioning plate 4 is connected with first helical gear 2 through Three Diamond pin 9a; Second positioning plate 5 is connected with second helical gear 3 through the 4th rhombus pin 9b, further increases the precision of connection stability and centering.
Straight pin when locating by aforementioned " plane and two pits "; Set up between helical gear and the positioning plate after one group of rhombus pin; Can between helical gear and positioning plate, form " plane and two pits " location, make helical gear and positioning plate be connected as a wholely before to gear shaft being inserted in, limit the relative movement between helical gear and the positioning plate; Location accuracy when helping improving follow-up the assembling, specific as follows:
In order to keep the dynamic balance accuracy at gear shaft 1 two ends, the first rhombus pin 6a and Three Diamond pin 9a are symmetrical set with respect to first helical gear, 2 centers; The second rhombus pin 6b and the 4th rhombus pin 9b are symmetrical set with respect to second helical gear, 3 centers.
The production method of the helical gear centralising device in present embodiment gear shaft two ends may further comprise the steps:
A, the processing first positioning hole 1a and the second positioning hole 1b:
At first with gear shaft 1 clamping on numerical control machine tool, under the situation that does not change the clamping state, the control cutter moves, feed, and processes the first positioning hole 1a and the second positioning hole 1b at the two ends of gear shaft 1;
Because only clamping is once on numerical control machine tool for gear shaft 1; Accomplish after the clamping; Promptly successively process the first positioning hole 1a and the second positioning hole 1b, therefore, process the first positioning hole 1a with all the other methods and compare with the second positioning hole 1b at its two ends; Adopt such method, make the first positioning hole 1a and the second positioning hole 1b have higher coaxality.
B, processing the 3rd positioning hole 2a and the 4th positioning hole 3a: with the flank profil line alignment of first helical gear 2 and second helical gear 3, reprocess the 3rd positioning hole 2a and the 4th positioning hole 3a earlier;
Promptly earlier first helical gear 2 and second helical gear 3 are stacked and its outer contour is alignd each other; Again along helical gear axial drilling; Once boring promptly and respectively forms the 3rd positioning hole 2a, the 4th positioning hole 3a on first helical gear 2, second helical gear 3, has guaranteed the precision after the assembling.
C, on first positioning plate 4 and second positioning plate 5, process the first penetration hole 4a, the 3rd penetration hole 4b and the second penetration hole 5a, the 4th penetration hole 5b.
During according to coaxial assembling; The distance between shafts of the distance between shafts of the first positioning hole 1a and the 3rd positioning hole 2a or the second positioning hole 1b and the 4th positioning hole 3a; With first positioning plate 4 and second positioning plate 5 superimposed after, on first positioning plate 4 and second positioning plate 5, get out the first penetration hole 4a, the 3rd penetration hole 4b and the second penetration hole 5a, the 4th penetration hole 5b.
D, on first positioning plate 4, second positioning plate 5, get out respectively in order to the tapped hole of the first screw 8a, the second screw 8b and the 3rd screw 8c, the 4th screw 8d to be installed.
E, on first positioning plate 4, second positioning plate 5, get out respectively in order to the penetration hole of Three Diamond pin 9a, the 4th rhombus pin 9b to be installed.
Utilize the assembly method of the helical gear centralising device in gear shaft two ends of present embodiment, may further comprise the steps:
At first, positioning plate and rhombus pin, straight pin that " plane and two pits " located are assembled into one earlier, and be concrete:
A, the first rhombus pin 6a is assemblied on first positioning plate 4 with the mode of interference fit, the first straight pin 7a is assemblied on first positioning plate 4 with the mode of interference fit, and Three Diamond pin 9a is assemblied on first positioning plate 4 with the mode of interference fit; The second rhombus pin 6b is assemblied on second positioning plate 5 with the mode of interference fit, and the second straight pin 7b is assemblied on second positioning plate 5 with the mode of interference fit, and the 4th rhombus pin 9b is assemblied on second positioning plate 5 with the mode of interference fit.
Be connected as a single entity helical gear and positioning plate again, concrete:
B, with first positioning plate 4 and first helical gear, 2 pin joints, second positioning plate 5 and second helical gear, 3 pin joints, wherein, the first straight pin 7a and first helical gear, 2 Spielpassung, Three Diamond pin 9a and first helical gear, 2 Spielpassung; The second straight pin 7b and second helical gear, 3 Spielpassung, the 4th rhombus pin 9b and second helical gear, 3 Spielpassung; Make first positioning plate 4 and first helical gear 2, second positioning plate 5 and second helical gear 3 all form the whole position structure of " plane and two pits ", avoid relative movement in the postorder assembling, thereby improve assembly precision.
The enlarged in size that heats up is again carried out hot jacket, and is concrete:
C, be heated to more than 200 ℃ first helical gear 2, second helical gear 3 and insulation, holding time was more than or equal to 20 minutes;
D, first helical gear 2 after will heating are through the location of the first rhombus pin 6a on first positioning plate 4 and be assemblied in an end of gear shaft 1; Second helical gear 3 after the heating is located and is assemblied in the other end of gear shaft 1 through the second rhombus pin 6b on second positioning plate 5;
E, first positioning plate 4 is threaded with first helical gear 2 through the first screw 8a and the second screw 8b; Through the 3rd screw 8c and the 4th screw 8d second positioning plate 5 is threaded with second helical gear 3;
F, be cooled to normal temperature.
After accomplishing aforesaid operations, can first positioning plate 4 and second positioning plate 5 be removed.
All the other structures see also embodiment 1.
See also Fig. 1 to Fig. 4, in this mode of execution, the pressure line of the pressure line of first helical gear 2 and second helical gear 3 intersects at first helical gear 2 and the symmetry plane of second helical gear 3 on gear shaft 1, and symmetry plane is perpendicular to the axis of gear shaft 1; The pressure line of the pressure line of first helical gear 2 and second helical gear 3 intersects at the axial middle vertical plane of gear shaft 1, and first helical gear 2, second helical gear 3 are symmetricly set in the two ends of gear shaft 1 with respect to this symmetry plane.The helical gear that makes gear shaft 1 two ends is when rotating, and the stressing conditions of gear shaft 1 is better.
Above-mentioned symmetry plane also is the axial middle vertical plane of gear shaft 1, and first helical gear 2, second helical gear 3 are symmetricly set in the two ends of gear shaft 1 with respect to symmetry plane.
In all the other mode of executions, first helical gear 2 and second helical gear 3 be spur gear also, and suitable with above-mentioned assembling centering structure, can accomplish the centering assembling equally.
Adopt spur gear to replace first helical gear 2 and second helical gear 3, then the flank profil line aligns at the axial direction of the basic rack tooth profile that is meant two gears perpendicular to the coincidence of the projection in the plane of gear shaft axis along gear, thereby makes the gear synchromesh at gear shaft two ends.
All the other structures see also embodiment 2.
The production method of the helical gear centralising device in present embodiment gear shaft two ends sees also embodiment 2.
Utilize the assembly method of the helical gear centralising device in gear shaft two ends of present embodiment, see also embodiment 2.
See also Fig. 1 to Fig. 6; In this mode of execution, the endoporus of first helical gear 2 is taper, and the endoporus of second helical gear 3 is taper; When the one end profile of gear shaft 1 and the endoporus of first helical gear 2 were suitable, the endoporus of gear shaft 1 the other end profile and second helical gear 3 was suitable.
Adopt said structure, in the connection procedure of first helical gear 2, second helical gear 3 and gear shaft 1, rely on the pairing of helical gear inner conical surface and gear shaft male cone (strobilus masculinus), guiding to insert, easy for installation, and guiding, location are accurate.
All the other structures see also embodiment 3.
The production method of the helical gear centralising device in present embodiment gear shaft two ends sees also embodiment 3.
Utilize the assembly method of the helical gear centralising device in gear shaft two ends of present embodiment, see also embodiment 3.
See also Fig. 1 to Fig. 6, in this mode of execution, the first rhombus pin 6a and the first penetration hole 4a interference fit, the first rhombus pin 6a and the first positioning hole 1a Spielpassung; The first straight pin 7a and the 3rd penetration hole 4b interference fit, the first straight pin 7a and the 3rd positioning hole 2a Spielpassung; The second rhombus pin 6b and the second penetration hole 5a interference fit, the second rhombus pin 6b and the second positioning hole 1b Spielpassung; The second straight pin 7b and the 4th penetration hole 5b interference fit; The second straight pin 7b and the 4th positioning hole 3a Spielpassung.
All the other structures see also embodiment 4.
The production method of the helical gear centralising device in present embodiment gear shaft two ends sees also embodiment 4.
Utilize the assembly method of the helical gear centralising device in gear shaft two ends of present embodiment, see also embodiment 4.
See also Fig. 1 to Fig. 6; In this mode of execution; Respectively be provided with two screws on first positioning plate 4 and second positioning plate 5, first positioning plate 4 and second positioning plate 5 are connected with first helical gear 2, second helical gear 3 respectively through screw, and be concrete; First positioning plate 4 is provided with the first screw 8a and the second screw 8b, and the first screw 8a, the second screw 8b are symmetrical set with respect to first helical gear, 2 centers; Second positioning plate 5 is provided with the 3rd screw 8c and the 4th screw 8d, and the 3rd screw 8c, the 4th screw 8d are symmetrical set with respect to second helical gear, 3 centers.
Through being threaded; Limit first helical gear 2, second helical gear 3 moves gear shaft 1 two ends; Increase stability of structure, and further improve accuracy of alignment; And screw all is symmetrical in the axis setting of gear shaft 1, improves the dynamic balance accuracy at gear shaft 1 two ends, optimizes the stressing conditions of gear shaft 1.
All the other structures see also embodiment 5.
The production method of the helical gear centralising device in present embodiment gear shaft two ends may further comprise the steps:
A, the processing first positioning hole 1a and the second positioning hole 1b:
At first with gear shaft 1 clamping on numerical control machine tool, under the situation that does not change the clamping state, the control cutter moves, feed, and processes the first positioning hole 1a and the second positioning hole 1b at the two ends of gear shaft 1;
Because only clamping is once on numerical control machine tool for gear shaft 1; Accomplish after the clamping; Promptly successively process the first positioning hole 1a and the second positioning hole 1b, therefore, process the first positioning hole 1a with all the other methods and compare with the second positioning hole 1b at its two ends; Adopt such method, make the first positioning hole 1a and the second positioning hole 1b have higher coaxality.
B, processing the 3rd positioning hole 2a and the 4th positioning hole 3a: with the flank profil line alignment of first helical gear 2 and second helical gear 3; The flank profil line of first helical gear 2 and second helical gear 3 is intersected on the midplane of first helical gear 2 and second helical gear 3, reprocess the 3rd positioning hole 2a and the 4th positioning hole 3a;
Promptly earlier first helical gear 2 and second helical gear 3 are stacked and its outer contour is alignd each other; Again along helical gear axial drilling; Once boring promptly and respectively forms the 3rd positioning hole 2a, the 4th positioning hole 3a on first helical gear 2, second helical gear 3, has guaranteed the precision after the assembling.
C, on first positioning plate 4 and second positioning plate 5, process the first penetration hole 4a, the 3rd penetration hole 4b and the second penetration hole 5a, the 4th penetration hole 5b.
During according to coaxial assembling; The distance between shafts of the distance between shafts of the first positioning hole 1a and the 3rd positioning hole 2a or the second positioning hole 1b and the 4th positioning hole 3a; With first positioning plate 4 and second positioning plate 5 superimposed after, on first positioning plate 4 and second positioning plate 5, get out the first penetration hole 4a, the 3rd penetration hole 4b and the second penetration hole 5a, the 4th penetration hole 5b.
D, on first positioning plate 4, second positioning plate 5, get out respectively in order to the tapped hole of the first screw 8a, the second screw 8b and the 3rd screw 8c, the 4th screw 8d to be installed.
Utilize the assembly method of the helical gear centralising device in gear shaft two ends of present embodiment, may further comprise the steps:
At first, positioning plate and rhombus pin, straight pin that " plane and two pits " located are assembled into one earlier, and be concrete:
A, the first rhombus pin 6a is assemblied on first positioning plate 4 with the mode of interference fit, the first straight pin 7a is assemblied on first positioning plate 4 with the mode of interference fit, and Three Diamond pin 9a is assemblied on first positioning plate 4 with the mode of interference fit; The second rhombus pin 6b is assemblied on second positioning plate 5 with the mode of interference fit, and the second straight pin 7b is assemblied on second positioning plate 5 with the mode of interference fit, and the 4th rhombus pin 9b is assemblied on second positioning plate 5 with the mode of interference fit.
Be connected as a single entity helical gear and positioning plate again, concrete:
B, with first positioning plate 4 and first helical gear, 2 pin joints, second positioning plate 5 and second helical gear, 3 pin joints, wherein, the first straight pin 7a and first helical gear, 2 Spielpassung, Three Diamond pin 9a and first helical gear, 2 Spielpassung; The second straight pin 7b and second helical gear, 3 Spielpassung, the 4th rhombus pin 9b and second helical gear, 3 Spielpassung;
The intensification enlarged in size, so that assembling is concrete:
C, be heated to more than 200 ℃ first helical gear 2, second helical gear 3 and insulation, holding time was more than or equal to 20 minutes;
D, first helical gear 2 after will heating are through the location of the first rhombus pin 6a on first positioning plate 4 and be assemblied in an end of gear shaft 1; Second helical gear 3 after the heating is located and is assemblied in the other end of gear shaft 1 through the second rhombus pin 6b on second positioning plate 5;
E, first positioning plate 4 is threaded with first helical gear 2 through the first screw 8a and the second screw 8b; Through the 3rd screw 8c and the 4th screw 8d second positioning plate 5 is threaded with second helical gear 3;
F, be cooled to normal temperature.
See also Fig. 1 to Fig. 6, in this mode of execution, the helical gear centralising device in gear shaft two ends comprises gear shaft 1 and coaxial first helical gear 2 and second helical gear 3 that is arranged at gear shaft 1 two ends,
The both ends of the surface of gear shaft 1 are respectively arranged with the first positioning hole 1a and the second positioning hole 1b, the first positioning hole 1a and the coaxial two ends that are arranged at gear shaft 1 of the second positioning hole 1b; The first positioning hole 1a and the second positioning hole 1b can add the synchronous processing in man-hour through numerical control machine tool, thereby guarantee the coaxial precision between the first positioning hole 1a and the second positioning hole 1b.
First helical gear 2 is provided with the 3rd positioning hole 2a, and second helical gear 3 is provided with the 4th positioning hole 3a; The axis of the 3rd positioning hole 2a, the 4th positioning hole 3a all with the parallel axes of gear shaft 1, the 3rd positioning hole 2a and the coaxial setting of the 4th positioning hole 3a; Also comprise first positioning plate 4 and second positioning plate 5; First positioning plate 4 is provided with the first penetration hole 4a and the 3rd penetration hole 4b, and second positioning plate 5 is provided with the second penetration hole 5a and the 4th penetration hole 5b;
As shown in Figure 6; Different with embodiment 1 is that in the present embodiment, the first penetration hole 4a is coaxial with the first positioning hole 1a; First positioning plate 4 is provided with the first straight pin 7a, and the first straight pin 7a passes through the first penetration hole 4a and the first positioning hole 1a, first positioning plate 4 is connected with gear shaft 1; The 3rd penetration hole 4b is coaxial with the 3rd positioning hole 2a, and first positioning plate 4 is provided with the first rhombus pin 6a, and the first rhombus pin 6a passes through the 3rd penetration hole 4b and the 3rd positioning hole 2a, first positioning plate 4 is connected with first helical gear 2;
Corresponding, the second penetration hole 5a is coaxial with the second positioning hole 1b, and second positioning plate 5 is provided with the second straight pin 7b, and the second straight pin 7b passes through the second penetration hole 5a and the second positioning hole 1b, second positioning plate 5 is connected with gear shaft 1;
The 4th penetration hole 5b is coaxial with the 4th positioning hole 3a, and second positioning plate 5 is provided with the second rhombus pin 6b, and the second rhombus pin 6b passes through the 4th penetration hole 5b and the 4th positioning hole 3a, second positioning plate 5 is connected with second helical gear 3.Carry out " plane and two pits " location through above-mentioned parts, simple in structure, easy to assembly, accuracy of alignment is high.
All the other structures see also embodiment 1.
The production method of the helical gear centralising device in present embodiment gear shaft two ends sees also embodiment 1.
Utilize the assembly method of the helical gear centralising device in gear shaft two ends of present embodiment, see also embodiment 1.
The utility model is not limited to aforesaid embodiment.The utility model expands to any new feature or any new combination that discloses in this manual, and the arbitrary new method that discloses or step or any new combination of process.
Claims (5)
1. the helical gear centralising device in gear shaft two ends comprises gear shaft (1) and coaxial first helical gear (2) and second helical gear (3) that is arranged at said gear shaft (1) two ends, it is characterized in that:
One end of said gear shaft (1) is provided with first positioning hole (1a), and the other end of said gear shaft (1) is provided with second positioning hole (1b), said first positioning hole (1a) and the coaxial setting of said second positioning hole (1b);
Said first helical gear (2) is provided with the 3rd positioning hole (2a), and said second helical gear (3) is provided with the 4th positioning hole (3a); Said the 3rd positioning hole (2a) and the coaxial setting of said the 4th positioning hole (3a);
Also comprise first positioning plate (4) and second positioning plate (5); Said first positioning plate (4) is provided with first penetration hole (4a) and the 3rd penetration hole (4b), and said second positioning plate (5) is provided with second penetration hole (5a) and the 4th penetration hole (5b);
Said first penetration hole (4a) is coaxial with said first positioning hole (1a); Said first positioning plate (4) is provided with the first rhombus pin (6a), and the said first rhombus pin (6a) is connected said first positioning plate (4) through said first penetration hole (4a) and said first positioning hole (1a) with said gear shaft (1);
Said the 3rd penetration hole (4b) is coaxial with said the 3rd positioning hole (2a); Said first positioning plate (4) is provided with first straight pin (7a), and said first straight pin (7a) is connected said first positioning plate (4) through said the 3rd penetration hole (4b) and said the 3rd positioning hole (2a) with said first helical gear (2);
Said second penetration hole (5a) is coaxial with said second positioning hole (1b); Said second positioning plate (5) is provided with the second rhombus pin (6b), and the said second rhombus pin (6b) is connected said second positioning plate (5) through said second penetration hole (5a) and said second positioning hole (1b) with said gear shaft (1);
Said the 4th penetration hole (5b) is coaxial with said the 4th positioning hole (3a); Said second positioning plate (5) is provided with second straight pin (7b), and said second straight pin (7b) is connected said second positioning plate (5) through said the 4th penetration hole (5b) and said the 4th positioning hole (3a) with said second helical gear (3).
2. the helical gear centralising device in gear shaft according to claim 1 two ends; It is characterized in that: said first positioning plate (4) is provided with Three Diamond pin (9a); Said second positioning plate (5) is provided with the 4th rhombus pin (9b); Said first positioning plate (4) is connected with said first helical gear (2) through said Three Diamond pin (9a), and said second positioning plate (5) is connected with said second helical gear (3) through said the 4th rhombus pin (9b).
3. the helical gear centralising device in gear shaft according to claim 2 two ends; It is characterized in that: the pressure line of the pressure line of said first helical gear (2) and said second helical gear (3) intersects at said first helical gear (2) and the symmetry plane of said second helical gear (3) on said gear shaft (1), and said symmetry plane is perpendicular to the axis of said gear shaft (1).
4. the helical gear centralising device in gear shaft according to claim 3 two ends; It is characterized in that: the endoporus of said first helical gear (2) is taper; The endoporus of said second helical gear (3) is taper; When the endoporus of said gear shaft (1) one end profile and said first helical gear (2) was suitable, the endoporus of said gear shaft (1) the other end profile and said second helical gear (3) was suitable.
5. the helical gear centralising device in gear shaft according to claim 4 two ends is characterized in that:
Said first rhombus pin (6a) and said first penetration hole (4a) interference fit, said first rhombus pin (6a) and said first positioning hole (1a) Spielpassung;
Said first straight pin (7a) and said the 3rd penetration hole (4b) interference fit, said first straight pin (7a) and said the 3rd positioning hole (2a) Spielpassung;
Said second rhombus pin (6b) and said second penetration hole (5a) interference fit, said second rhombus pin (6b) and said second positioning hole (1b) Spielpassung;
Said second straight pin (7b) and said the 4th penetration hole (5b) interference fit; Said second straight pin (7b) and said the 4th positioning hole (3a) Spielpassung.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201295891U CN202493604U (en) | 2012-03-30 | 2012-03-30 | Aligning device for bevel gears at two ends of gear shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201295891U CN202493604U (en) | 2012-03-30 | 2012-03-30 | Aligning device for bevel gears at two ends of gear shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202493604U true CN202493604U (en) | 2012-10-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201295891U Withdrawn - After Issue CN202493604U (en) | 2012-03-30 | 2012-03-30 | Aligning device for bevel gears at two ends of gear shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202493604U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102606634A (en) * | 2012-03-30 | 2012-07-25 | 四川宏华石油设备有限公司 | Centering device of helical gears at two ends of gear shaft and manufacture and assembling method thereof |
| CN103541880A (en) * | 2013-10-23 | 2014-01-29 | 四川宏华石油设备有限公司 | Well drilling five-cylinder pump and method for installing helical gears thereof |
-
2012
- 2012-03-30 CN CN2012201295891U patent/CN202493604U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102606634A (en) * | 2012-03-30 | 2012-07-25 | 四川宏华石油设备有限公司 | Centering device of helical gears at two ends of gear shaft and manufacture and assembling method thereof |
| CN102606634B (en) * | 2012-03-30 | 2014-01-08 | 四川宏华石油设备有限公司 | Centering device of helical gears at two ends of gear shaft and manufacture and assembling method thereof |
| CN103541880A (en) * | 2013-10-23 | 2014-01-29 | 四川宏华石油设备有限公司 | Well drilling five-cylinder pump and method for installing helical gears thereof |
| CN103541880B (en) * | 2013-10-23 | 2016-02-10 | 四川宏华石油设备有限公司 | The drilling well helical gear installation method of five cylinder pumps and five cylinder pumps thereof |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20121017 Effective date of abandoning: 20140108 |
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