CN206845666U - A kind of ship lift gear shaft - Google Patents

A kind of ship lift gear shaft Download PDF

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Publication number
CN206845666U
CN206845666U CN201720586817.0U CN201720586817U CN206845666U CN 206845666 U CN206845666 U CN 206845666U CN 201720586817 U CN201720586817 U CN 201720586817U CN 206845666 U CN206845666 U CN 206845666U
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China
Prior art keywords
axle
bevel gear
gear
ship lift
cone
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CN201720586817.0U
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Chinese (zh)
Inventor
张军警
杜华
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CHONGQING ZHIZHAN GEAR TRANSMISSION Co Ltd
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CHONGQING ZHIZHAN GEAR TRANSMISSION Co Ltd
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Abstract

The utility model discloses a kind of ship lift gear shaft in gear shaft field, including axle body, bevel gear body, axle body includes first axle, second axle, 3rd axle, 4th axle and the 5th axle, bevel gear body by integral forming is between first axle and the second axle, first axle is located at the back cone side of bevel gear body, second axle position is in the face cone side of bevel gear body, the axle body length of first axle is less than the axle body length of the second axle, second axle, 3rd axle, 4th axle is integrally formed in end of second axle away from bevel gear body successively, first axle, bevel gear body, second axle, 3rd axle, 4th axle and the 5th axle are coaxially disposed.This programme avoids operating personnel using being integrally formed, during use and carries out gear and the process of axle assembling, improves the efficiency of assembling of operating personnel, avoid the rigging error between gear and axle, so that ship lift is more steady with being driven during gear shaft use, vibrations are small, and noise is small.

Description

A kind of ship lift gear shaft
Technical field
It the utility model is related to gear shaft field, and in particular to a kind of ship lift gear shaft.
Background technology
Ship lift is to be lifted using the power of mechanical device or declined ship, overcome and the height of water, simultaneously is concentrated on navigation channel Ship is set to pass through the plant equipment of dam.Ship lift is the most critical equipment of power station lifting system, has output torque Greatly, the features such as gearratio is big, shape and structure size is big, the drive system of ship lift is mainly by motor, decelerator, shaft coupling and same Walk axle etc. to form, internal generally use gear drive, the commutation transmission that bevel gear completes power is commonly used in ship lift, in order to Meet the needs of internal structure, the bevel gear that ship lift uses is longer in the length of the axle of face cone side, prior art frequently with The mode that the bevel gear of separation is assembled on multi-diameter shaft by modes such as key connections is realized to the connection of gear and axle, but so Cooperation between part requires more, inevitable error at each cooperation be present, Errors Catastrophic causes ship lift internal drive Vibrations are big, noise is big, transmission efficiency is low.
Utility model content
The utility model is intended to provide a kind of ship lift gear shaft, and assembled bevel gear is used to solve existing ship lift The problem of mismatch error be present.
To reach above-mentioned purpose, basic technology scheme of the present utility model is as follows:A kind of ship lift gear shaft, including axle Body, bevel gear body, axle body include first axle, the second axle, the 3rd axle, the 4th axle and the 5th axle, and bevel gear body by integral forming is Between one axle and the second axle, first axle is located at the back cone side of bevel gear body, and the second axle position is in the face cone side of bevel gear body, first axle Axle body length be less than the second axle axle body length, the second axle, the 3rd axle, the 4th axle be integrally formed successively the second axle away from cone The end of gear mass, first axle, bevel gear body, the second axle, the 3rd axle, the 4th axle and the 5th axle are coaxially disposed.
The advantages of this programme is:One is used between first axle, bevel gear body, the second axle, the 3rd axle, the 4th axle and the 5th axle It is body formed, operating personnel is avoided during use and carries out gear and the process of axle assembling, the efficiency of assembling of operating personnel is improved, keeps away The rigging error between gear and axle is exempted from so that ship lift is more steady with being driven during gear shaft use, and vibrations are small, make an uproar Sound is small;The length of first axle is less than the length of the second axle, face cone side the second axle of direction of bevel gear body, so that gear axial plane The shaft length of cone side meets to use needs, is easy to fix by first axle progress clamping in process;Integral type bevel gear exists Transmit in dynamic process, because the impetus at each position is evenly distributed, there is stronger bearing capacity, avoid split type cone tooth The drawbacks of fitting recess and fitted key stress are excessively concentrated on wheel shaft.
Preferred scheme one, based on scheme a kind of improvement, the one end of the second axle away from bevel gear body is circumferentially uniform Some oblique coggings are distributed with.Set oblique cogging to enable increases a power transmission by gear shaft so that gear s function More, ship lift inner body is advantageously reduced, is advantageous to the error for controlling parts mating band.
A kind of improvement of preferred scheme two, preferably one, the 4th axle offer the first key close to the 3rd axle one end Groove.The first keyway is set to be easy to assemble parts on the 4th axle.
A kind of improvement of preferred scheme three, preferably two, the second keyway being axially distributed is offered on the 5th axle, Second keyway is oblong slots, and the 5th end face of the axle away from the 4th axle is run through in the one end of the second keyway away from the 4th axle.So set The second keyway be easy to the 5th axle carry out Set and Positioning, be easy to assemble parts on the 5th axle.
A kind of improvement of preferred scheme four, preferably three, on end face of the first axle away from bevel gear body, the 5th axle Centre bore is equipped with end face away from the 4th axle.Centre bore is set to be easy in process carry out centering clamping to axle, favorably In the accurate processing of gear shaft.
A kind of improvement of preferred scheme five, preferably four, first axle, the 3rd axle, the table of the 4th axle and the 5th axle Face is coated with antiseepage carbon-coating.The cost for carrying out Carburization Treatment to gear shaft beneficial to control is so provided with, ensures teeth through processing The use cost of auxiliary material in process is reduced while there is higher hardness afterwards.
A kind of improvement of preferred scheme six, preferably five, the back cone outer of bevel gear body is provided with chamfering.Set Chamfering causes the edge of bevel gear body without sharp edge, to be advantageous to control the abrasion at bevel gear body edge and be easy to cutter in process Operation.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model embodiment.
Embodiment
The utility model is described in further detail below by embodiment:
Reference in Figure of description includes:First axle 1, bevel gear body 2, the second axle 3, the 3rd axle 4, the 4th axle 5, 5th axle 6, the second keyway 7, roller gear 8.
Embodiment is substantially as shown in Figure 1:A kind of ship lift gear shaft, including axle body, bevel gear body 2, axle body includes First axle 1, the second axle 3, the 3rd axle 4, the 4th axle 5 and the 5th axle 6, the integrally casting shaping of bevel gear body 2 is in first axle 1 and second Between axle 3, first axle 1 is located at the back cone side of bevel gear body 2, and the second axle 3 is located at the face cone side of bevel gear body 2, the axle of first axle 1 Body length is less than the axle body length of the second axle 3, and the second axle 3, the 3rd axle 4, the 4th axle 5 are integrally formed remote in the second axle 3 successively The end of bevel gear body 2, first axle 1, bevel gear body 2, the second axle 3, the 3rd axle 4, the 4th axle 5 and the 5th axle 6 are coaxially disposed.The Two one end of axle 3 away from bevel gear body 2 have been uniformly distributed circumferentially some oblique coggings and have formed roller gear 8.4th axle 5 is close to The one end of three axle 4 offers the first keyway.The second keyway 7 being axially distributed is offered on 5th axle 6, the second keyway 7 is oblong slots, The 5th end face of the axle 6 away from the 4th axle 5 is run through in second one end of keyway 7 away from the 4th axle 5.First axle 1 is away from bevel gear body 2 Centre bore is equipped with end face, on the 5th end face of the axle 6 away from the 4th axle 5.First axle 1, the 3rd axle 4, the 4th axle 5 and the 5th axle 6 surface is coated with antiseepage carbon-coating.The back cone outer of bevel gear body 2 is provided with chamfering.
In the present embodiment, ship lift is processed with gear shaft using following processing technology:
A, stock up, rough forging, blank normalizing is warming up to 930 DEG C and is incubated 3 hours, is cooled to room temperature in atmosphere, then It is warming up to 680 DEG C and is incubated 3 hours, then be cooled to room temperature in atmosphere, in the both ends chamfering bit B5 centre bores of blank, by clamping workpiece On lathe, the gear mass of lathe tool turner part, each stage of gear shaft are cylindrical, remove workpiece surface oxide layer, obtain bevel gear Rough turn body;So processing can refine the tissue of blank, reach non-metallic inclusion requirement, make its Brinell hardness reach HB215~ 235, it is easy to process;
B, detect a flaw, the ultrasonic wave for being 2.5MHz with frequency detects to workpiece, and the workpiece, defect after detection allows≤φ 2mm, bottom ripple reduction amount≤6dB, workpiece is set not produce extension defect and close defect area;
C, it is rough turn, centre frame is taken on lathe, by the rough turn body clamping of bevel gear on lathe, further passes through turner part tooth Wheel body, each step of gear shaft be cylindrical and length, unilateral to stay 5mm surpluses, repaiies both ends centre bore, and therefrom cut first Body sample and the second bulk sample;
D, blank is rechecked, and the reinspection of chemical composition, grain size, non-metallic inclusion is carried out to the first noumenon sample, to the Two bulk samples carry out mechanical performance reinspection;
E, tooth is rough milled, rough milling is carried out to gear mass with hard alloy cylindrical bar milling cutter, using its milling of hard alloy cylindrical bar milling cutter To cut that speed is higher, machined surface quality is also preferable, and the workpiece with sclerderm and quench-hardened case can be processed, stable cutting is more preferable, Machining accuracy is higher;Bevel gear pair model is created, given correction of the flank shape is repaiied to parameter, work in-process and generates procedure in the heart, will add Engineering sequence carries out mirror image, crosspoint position is changed to negative axial direction by the positive axial direction of mounting surface, all coordinate point values are carried out just Negative conversion, machining direction by being changed to along positive X-direction along negative X-direction, along negative X-direction be changed to along positive X-direction, make cutter path With respect to teeth in clockwise;Ensure mesh regional position, the centre bore in workpiece face cone direction, institute are withstood using special tooling Stating special tooling includes lathe dividing head, tailstock and the tailstock centre on tailstock, clamping dividing head and tailstock centre, makes Dividing head is located at the positive X axis of tailstock, dividing head claw face tailstock centre and distance is more than 1 meter, respectively to indexing head and tail Seat progress centering is levelling, both centres of gyration is overlapped with X-axis, dividing head clamping gear face cone axis of orientation neck, clamping position Put and be more than 450mm apart from bevel gear teeth, rough milling is carried out to gear mass with milling cutter, mills out the left and right flank of tooth;Determine region of engagement Position, cylindrical bar milling cutter carry out Milling Process in a manner of climb cutting to the rough turn body of bevel gear, and cylindrical bar milling cutter feed path is parallel to bevel gear The face cone of rough turn body is set;The left and right flank of tooth is milled out using more number of teeth processing mode, first the left surface of tooth processed, then to tooth Right flank is processed, and the left surface of each tooth is processed along back cone to inner cone direction, and right flank is processed along inner cone to back cone direction, Tooth form is processed into along the high direction of tooth is progressive;Processed using the more number of teeth, intermittent processing is carried out to the gear teeth, reduces tool wear Add up the influence of trueness error to gear;Midpoint reference circle chordal thickness reserves the thick finish-milling tooth amounts of 1mm, to flank profil chamfering 1.5 × 45 °, to tooth top rounding, tooth root sinks deep amount for the modulus in 0.16 times of the high direction of tooth, transverse tooth thickness direction is with heavy deep arc transition 0.5mm, in axle body upper rolling tooth forming cylinder gear, common normal allowance 0.6mm, it is molded as one formula ship lift gear shaft;
F, be heat-treated, by addition to bevel gear and roller gear teeth remainder apply after the thick antiseepage carbon-coatings of 0.3mm 920 ~ 930 DEG C be incubated 8 hours, be then air-cooled to 400~500 DEG C, then be warming up to 820~830 DEG C insulation 4 hours after carry out oil quenching, oil Temperature is 60 DEG C so that tooth face hardness is HRC56~60, and core hardness is HRC30~42;This Technology for Heating Processing has with stove simultaneously Sample can carry out hardness determination, make the superficial layer of workpiece there is high rigidity and wearability, and the core of workpiece is still Remain the toughness and plasticity of mild steel;
G, shot-peening, bead is carried out to tooth surfaces of bevel gears with 2.5mm iron sand, it is HRC58~62 to make tooth face hardness;This Cause the flank of tooth wearability of bevel gear to improve after sample processing, be not easy to be worn during long-term use of.Using more when processing tooth form The number of teeth is processed;
H, smart car, smart car is carried out to the bevel gear after bead, the bevel gear clamping after shot-peening is on lathe, lathe card Clamping back cone direction axle journal, the top top surface cone direction axle journal centre bore of staight shank of special tooling, lathe tool skiving wheel shaft, gear mass are each Step it is cylindrical it is unilateral stay 0.3mm surpluses, 0.2mm surpluses are stayed in end face;
I, roughly grind, the clamping workpiece cylindrical grinder after smart car, Double Tops bevel gear centre bore, corase grind gear shaft, gear mass are each Step it is cylindrical, it is unilateral to stay 0.15mm surpluses, grind Cylinder Gear, it is desirable to without grinding crack, grinding length to finished product;
J, finish-milling tooth, the bevel gear clamping after corase grind, dividing head clamping gear back cone direction axle journal, is withstood with special tooling The centre bore in workpiece face cone direction, the left and right flank of tooth is finished using procedure when rough milling tooth, the processing of midpoint transverse tooth thickness To finished product;First the left surface of tooth is processed, then the right flank of tooth is processed, the left surface of each tooth is along back cone to inner cone side To processing, right flank is processed along inner cone to back cone direction, and tooth form is processed into along the high direction of tooth is progressive;
K, coloring rolling is examined, and the gear after finish-milling tooth is coloured with the gear to match, and clamping bevel gear pair is engaged Experiment, length direction accounts for the 45%~65% of total facewidth in mesh regional during underloading, and short transverse accounts for the 50% of fully teeth height, contacts position Put in the inclined bevel gear small end in the middle part of mesh regional, determine locating distance and sideshake, 5~10 points of light running is carried out on rolling inspection machine Clock, detect noise≤80 decibel;There are size, status requirement in gear tooth contact zone, and contact zone ratio is too small, the moment of torsion of transmission Requirement is not reached, ratio is excessive, and meshing interference, easy broken teeth occur after loading.Length direction accounts for always in setting mesh regional The 45%~65% of the facewidth, short transverse account for the 50% of fully teeth height, so set and are engaged region to the bevel gear machined Detection, intuitively can effectively reflect the engagement situation of gear, be easy to solve the problem in time, and reduction problem finds to bring not in time Follow-up remedy cost;
L, detect, the finished product bevel gear after coloring rolling inspection send gear inspector to detect its teeth portion precision, and carries out magnetic spy Wound, it is allowed to linear discontinuities≤0.5 after workpiece flaw detection, circular flaw≤0.1;
M, refine, the workpiece after detection is refined, each step of workpiece is cylindrical arrives finished product for fine grinding;
N, examine eventually, the workpiece after fine grinding carries out whole inspection, examines each dimensional accuracy, and make a record.
Above-described is only embodiment of the present utility model, the general knowledge such as known concrete structure and/or characteristic in scheme Do not describe excessively herein.It should be pointed out that for those skilled in the art, before the utility model structure is not departed from Put, several modifications and improvements can also be made, these should also be considered as the scope of protection of the utility model, and these are all without shadow Ring effect and practical applicability that the utility model is implemented.This application claims protection domain should be with its claim Appearance is defined, and the record such as embodiment in specification can be used for the content for explaining claim.

Claims (7)

1. a kind of ship lift gear shaft, including axle body, bevel gear body, it is characterised in that the axle body includes first axle, second Axle, the 3rd axle, the 4th axle and the 5th axle, between first axle and the second axle, first axle is located at the bevel gear body by integral forming The back cone side of bevel gear body, for the second axle position in the face cone side of bevel gear body, the axle body length of first axle is less than the axle body of the second axle Length, second axle, the 3rd axle, the 4th axle are integrally formed in end of second axle away from bevel gear body successively, and described first Axle, bevel gear body, the second axle, the 3rd axle, the 4th axle and the 5th axle are coaxially disposed.
2. ship lift gear shaft according to claim 1, it is characterised in that:Second axle away from bevel gear body one End has been uniformly distributed circumferentially some oblique coggings.
3. ship lift gear shaft according to claim 2, it is characterised in that:4th axle is opened close to the 3rd axle one end Provided with the first keyway.
4. ship lift gear shaft according to claim 3, it is characterised in that:Axial distribution is offered on 5th axle The second keyway, the second keyway is oblong slots, and the 5th end of the axle away from the 4th axle is run through in the one end of the second keyway away from the 4th axle Face.
5. ship lift gear shaft according to claim 4, it is characterised in that:End of the first axle away from bevel gear body Centre bore is equipped with face, on the 5th end face of the axle away from the 4th axle.
6. ship lift gear shaft according to claim 5, it is characterised in that:The first axle, the 3rd axle, the 4th axle and The surface of 5th axle is coated with antiseepage carbon-coating.
7. ship lift gear shaft according to claim 6, it is characterised in that:The back cone outer of the bevel gear body is set There is chamfering.
CN201720586817.0U 2017-05-24 2017-05-24 A kind of ship lift gear shaft Active CN206845666U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109520796A (en) * 2018-10-24 2019-03-26 株洲硬质合金集团有限公司 A kind of production method that sintering cemented carbide accompanies sample

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109520796A (en) * 2018-10-24 2019-03-26 株洲硬质合金集团有限公司 A kind of production method that sintering cemented carbide accompanies sample

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