CN104308799B - Crankshaft timing gear draw-off gear - Google Patents
Crankshaft timing gear draw-off gear Download PDFInfo
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- CN104308799B CN104308799B CN201410556846.3A CN201410556846A CN104308799B CN 104308799 B CN104308799 B CN 104308799B CN 201410556846 A CN201410556846 A CN 201410556846A CN 104308799 B CN104308799 B CN 104308799B
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- gear
- screw
- draw
- sleeve
- platen
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
- B25B27/023—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same using screws
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
The invention discloses a kind of crankshaft timing gear draw-off gear.This draw-off gear includes: push rod, comprising: screw rod, bearing, platen and back-up ring, one end of screw rod has and screws homalocephalus, the other end is three grades of multidiameter structures, the big axle in inner side is as the stop lug of described bearing, and axis is as the axle that wears of bearing, and the little axle in outside wears the centre bore of described platen, can be relatively rotated by described bearing with it, and by back-up ring backstop；Sleeve, it is the pipe box shape of ladder tube chamber, the outer end of its lumen have with described screw rod screw formed screw thread pair the first screw, the outer end sidewall of the big tube chamber of sleeve offers inserting-plate hole；And inserted sheet, it is the flake inserted with inserting-plate hole adaptation, and middle part offers the calabash shaped through hole of the pore size of the big tube chamber that can adjust sleeve.This draw-off gear avoids the friction damage to bent axle head；It addition, the inserted sheet of this draw-off gear and the gear teeth post, avoid the friction damage to the gear teeth equally.
Description
Technical field
The present invention relates to engine art, particularly to a kind of crankshaft timing gear draw-off gear.
Background technology
Crankshaft timing gear provision for disengagement is engine remanufacturing or the usual means of routine use maintenance, crankshaft timing gear dismounting can generally adopt Electromagnetic Heating to dismantle, bent axle and timing gears are damaged only small by the method, and efficiency is higher but needs Special Equipment and place, has high input.
Crankshaft timing gear dismounting can also adopt fluid power to draw horse, pneumatic draw horse, the provisions for disengagement such as spiral puller, its common ground is to use 2-3 hook type pawl or inserted sheet to hook gear tooth portions, and screw rod realizes drawing function by bulb or direct contact bent axle head relative motion, wherein, when hooking gear tooth portions by hook type pawl or inserted sheet, owing to the fitting area of hook type pawl or inserted sheet and gear tooth portions is little, and screw rod by bulb or directly contacts bent axle head relative motion, it is easy to damage bent axle head and the gear teeth.It addition, above-mentioned provision for disengagement also has type greatly, the shortcoming of operation effort.
It is disclosed in the information of this background section and is merely intended to increase the understanding of the general background to the present invention, and be not construed as admitting or imply in any form that this information structure is for prior art that persons skilled in the art are known.
Summary of the invention
It is an object of the invention to provide a kind of simple and reasonable crankshaft timing gear draw-off gear, this crankshaft timing gear draw-off gear can withstand bent axle head by platen by being arranged on screw rod end in relative rotation with it, and between screw rod and platen, it is arranged to thrust ball bearing in relative rotation, make screw rod be rotated on bearing slideway to the pressurized of platen to carry out, platen and bent axle head non-contact type relative motion, thus avoiding the friction damage to bent axle head；It addition, this crankshaft timing gear draw-off gear is by arranging the laminar inserted sheet that could alter that sleeve essence aperture so that inserted sheet and the gear teeth post, and binding face is big, and uniform force avoids the friction damage to the gear teeth equally.
For achieving the above object, the invention provides crankshaft timing gear draw-off gear, including: push rod, comprising: screw rod, bearing, platen and back-up ring, one end of described screw rod has and screws homalocephalus, the other end is three grades of multidiameter structures, the big axle in inner side of these three grades of multidiameter structures is as the stop lug of described bearing, the axis of these three grades of multidiameter structures wears axle as described bearing, the little axle in outside of these three grades of multidiameter structures wears the centre bore of described platen, can be relatively rotated by described bearing with described platen, and described platen is by described back-up ring backstop；Sleeve, it is the pipe box shape of ladder tube chamber, the outer end of its lumen have with described screw rod screw formed screw thread pair the first screw, the outer end sidewall of the big tube chamber of described sleeve offers inserting-plate hole；And inserted sheet, it is the flake inserted with described inserting-plate hole adaptation, offers the calabash shaped through hole of the pore size of the big tube chamber that can adjust sleeve in the middle part of this inserted sheet.
Preferably, in technique scheme, bearing is thrust ball bearing.
Preferably, in technique scheme, back-up ring is shaft block ring.
Preferably, in technique scheme, calabash shaped through hole includes the large aperture circle and the small-bore circle that intersect.
Preferably, in technique scheme, the big tube chamber sidewall outer face of sleeve inwardly offers the second screw running through described inserting-plate hole, and screw screws at this second screw and in being located in the through hole of described inserted sheet.
Preferably, in technique scheme, the sleeve lateral wall corresponding with described second screw offers screw slot to make way.
Preferably, in technique scheme, calabash shaped through hole also includes screw socket.
Compared with prior art, there is advantages that this crankshaft timing gear draw-off gear can withstand bent axle head by platen by being arranged on screw rod end in relative rotation with it, and between screw rod and platen, it is arranged to thrust ball bearing in relative rotation, make screw rod be rotated on bearing slideway to the pressurized of platen to carry out, platen and bent axle head non-contact type relative motion, thus avoiding the friction damage to bent axle head；It addition, this crankshaft timing gear draw-off gear is by arranging the laminar inserted sheet that could alter that sleeve essence aperture so that inserted sheet and the gear teeth post, and binding face is big, and uniform force avoids the friction damage to the gear teeth equally.
Accompanying drawing explanation
Fig. 1 is the perspective view of the crankshaft timing gear draw-off gear of the present invention.
Fig. 2 is the main TV structure schematic diagram of the crankshaft timing gear draw-off gear of the present invention.
Fig. 3 is the side-looking structural representation of the crankshaft timing gear draw-off gear of the present invention.
Fig. 4 is the push rod perspective view of the crankshaft timing gear draw-off gear of the present invention.
Fig. 5 is the push rod sectional structure schematic diagram of the crankshaft timing gear draw-off gear of the present invention.
Fig. 6 is the screw-rod structure schematic diagram of the crankshaft timing gear draw-off gear of the present invention.
Fig. 7 is the press plate structure schematic diagram of the crankshaft timing gear draw-off gear of the present invention.
Fig. 8 is the sleeve perspective view of the crankshaft timing gear draw-off gear of the present invention.
Fig. 9 is the sleeve sectional structure schematic diagram of the crankshaft timing gear draw-off gear of the present invention.
Figure 10 is the sleeve side-looking structural representation of the crankshaft timing gear draw-off gear of the present invention.
Figure 11 is the plate-inserting structure schematic diagram of the crankshaft timing gear draw-off gear of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail, it is to be understood that protection scope of the present invention is not by the restriction of detailed description of the invention.
Explicitly indicate that unless otherwise other, otherwise in entire disclosure and claims, term " includes " or its conversion will be understood to comprise the element or ingredient stated at such as " comprising " or " including " etc., and does not get rid of other element or other ingredient.
As shown in Figure 1 to Figure 3, the concrete structure according to the crankshaft timing gear draw-off gear of the specific embodiment of the invention includes: push rod 1, sleeve 2 and inserted sheet 3.Wherein, the screw rod of push rod 1 and sleeve 2 screw formation screw thread pair and produce pulling capacity, and the platen of push rod 1 holds out against bent axle head simultaneously, and the through hole of inserted sheet 3 can block sleeve 2 to obtain the essence aperture of size variation.When essence aperture is bigger, the cylindrical hole of sleeve 2 and the through hole of inserted sheet 3 can pass through outside circle and arrive axle journal, now promotes inserted sheet 3, makes essence aperture diminish, and inserted sheet 3 fastens with gear face；Then passing through screw-in push rod 1, its platen heads on bent axle head, and screw-in moment is converted into pulling force and gear is extracted.
As shown in Figure 4 and Figure 5, push rod 1 includes: screw rod 11, thrust ball bearing 12, platen 13 and shaft block ring 14, and wherein, as shown in Figure 6 and Figure 7, one end of screw rod 11 has and screws homalocephalus, for rotating with screwing tool and produce pulling capacity with the use of screwing screw rod 11；The other end of screw rod 11 is three grades of multidiameter structures, wherein, the big axle in inner side is as the stop lug of thrust ball bearing 12, axis wears axle as thrust ball bearing 12, and the little axle in outside is used for wearing shaft block ring 14 and platen 13, assembling thrust ball bearing 12 between screw rod 11 and platen 13, screw rod 11 wears the centre bore of platen 13, and the two can relatively rotate.The platen of push rod 1 holds out against bent axle head, and screw rod 11 and platen 13 relatively rotate generation pulling capacity.
As shown in Fig. 8 to Figure 10, sleeve 2 is the pipe box shape of ladder tube chamber, and wherein, the outer end of lumen has the first screw 21, and this first screw 21 produces pulling capacity for screwing formation screw thread pair with screw rod 11.The outer end sidewall of the big tube chamber of sleeve 2 offers inserting-plate hole 22, for inserting inserted sheet 3 to obtain the essence aperture of the big tube chamber size variation of sleeve 2.When essence aperture is bigger, the big tube chamber of sleeve 2 and the through hole of inserted sheet 3 can pass through outside circle and arrive axle journal, now promotes inserted sheet 3, makes essence aperture diminish, and inserted sheet 3 fastens with gear face；Then passing through screw-in push rod 1, its platen heads on bent axle head, and screw-in moment is converted into pulling force and gear is extracted.The big tube chamber sidewall outer face of sleeve 2 inwardly offers the second screw 23 running through inserting-plate hole 22, sleeve 2 sidewall corresponding with this second screw 23 offers screw slot to make way, when the inserting-plate hole 22 of sleeve 2 inserts inserted sheet 3, screw at the second screw 23 by screw 24, and be located in the through hole 31 of inserted sheet 3, it is possible to prevent inserted sheet 3 from coming off and strengthen herein by force intensity.
As shown in figure 11, inserted sheet 3 is the flake inserted adaptive with inserting-plate hole 22, and middle part offers calabash shaped through hole 31.This calabash shaped through hole 31 includes: the large aperture circle intersected and small-bore circle, and screw socket, and wherein, when the inserting-plate hole 22 of sleeve 2 inserts inserted sheet 3, the large aperture circle of through hole 31 can adjust the big tube chamber of sleeve 2 and pass through outside circle arrival axle journal；And the big tube chamber that the small-bore circle of through hole 31 can adjust sleeve 2 makes its essence aperture diminish, inserted sheet 3 fastens with gear face, then screws in push rod 1, and platen 13 heads on bent axle head, and screw-in moment is converted into pulling force and gear is extracted.Screw socket screws when the second screw 23 for screw traverse at screw 24, to prevent inserted sheet 3 from coming off and to strengthen herein by force intensity.
During assembling, form screw thread pair at the screw rod 11 of push rod 1 with the first screw 21 of sleeve 2, and inserted slot smears moderate lubrication fat so that operate more laborsaving.Platen 13 acts on bent axle head, by spiral component and frictional force and the laminating of bent axle head；The sliding inserting-plate hole 23 fitting over sleeve 2 of inserted sheet 3, through hole 31 can block the big tube chamber of sleeve 2；Screw 24 screws at the second screw 23, wears through hole 31, it is possible to prevents inserted sheet 3 from coming off and strengthens herein by force intensity.Owing to inserted sheet 3 through hole 31 can block the big tube chamber of sleeve 2, it is thus achieved that the essence aperture of size variation.When essence aperture is bigger, the big tube chamber of sleeve 2 and inserted sheet 3 through hole 31 can pass through outside circle and arrive axle journal, now promotes inserted sheet 3, makes essence aperture diminish, and inserted sheet 3 fastens with gear face；Then screwing in push rod 1, platen 13 heads on bent axle head, and screw-in moment is converted into pulling force and gear is extracted.After gear relaxes, promotion inserted sheet 3, make essence aperture become big, take out gear and push rod back-out wait is used next time.Due to push rod 1 band thrust ball bearing 12, pressurized carries out when rotating on bearing slideway, and frictional force is little of bent axle head non-contact type relative motion；Inserted sheet 3 posts for one-piece sheet shape and the gear teeth, and binding face is big.This gear draw-off gear is made to have simple in construction, uniform force, rapid operation, the feature of less damage bent axle head and the gear teeth.
It addition, this gear draw-off gear is simple and reasonable, on-wing maintenance is facilitated to use.If push rod 1 is unloaded completely, sleeve 2 and inserted sheet 3 coordinate when essence aperture is less, it is also possible to the drift as assembling gear uses, thus realizing mounting or dismounting to share purpose.
To sum up, this crankshaft timing gear draw-off gear can withstand bent axle head by platen by being arranged on screw rod end in relative rotation with it, and between screw rod and platen, it is arranged to thrust ball bearing in relative rotation, make screw rod be rotated on bearing slideway to the pressurized of platen to carry out, platen and bent axle head non-contact type relative motion, thus avoiding the friction damage to bent axle head；It addition, this crankshaft timing gear draw-off gear is by arranging the laminar inserted sheet that could alter that sleeve essence aperture so that inserted sheet and the gear teeth post, and binding face is big, and uniform force avoids the friction damage to the gear teeth equally.
The aforementioned description to the specific illustrative embodiment of the present invention illustrates that and the purpose of illustration.These describe and are not wishing to limit the invention to disclosed precise forms, and it will be apparent that according to above-mentioned instruction, it is possible to carry out much changing and change.Purpose exemplary embodiment selected and describe is in that to explain the certain principles of the present invention and practical application thereof, so that those skilled in the art is capable of and utilizes the various different exemplary of the present invention and various different selection and change.The scope of the present invention is intended to be limited by claims and equivalents thereof.
Claims (6)
1. a crankshaft timing gear draw-off gear, it is characterised in that including:
Push rod, comprising: screw rod, bearing, platen and back-up ring, one end of described screw rod has and screws homalocephalus, the other end is three grades of multidiameter structures, the big axle in inner side of these three grades of multidiameter structures is as the stop lug of described bearing, and the axis of these three grades of multidiameter structures wears axle as described bearing, and the little axle in outside of these three grades of multidiameter structures wears the centre bore of described platen, can be relatively rotated by described bearing with described platen, and described platen is by described back-up ring backstop；
Sleeve, it is the pipe box shape of ladder tube chamber, the outer end of its lumen have with described screw rod screw formed screw thread pair the first screw, the outer end sidewall of the big tube chamber of described sleeve offers inserting-plate hole；And
Inserted sheet, it is the flake inserted with described inserting-plate hole adaptation, offers the calabash shaped through hole of the pore size of the big tube chamber that can adjust sleeve in the middle part of this inserted sheet；Described calabash shaped through hole includes the large aperture circle and the small-bore circle that intersect.
2. crankshaft timing gear draw-off gear according to claim 1, it is characterised in that described bearing is thrust ball bearing.
3. crankshaft timing gear draw-off gear according to claim 1, it is characterised in that described back-up ring is shaft block ring.
4. crankshaft timing gear draw-off gear according to claim 1, it is characterized in that, the big tube chamber sidewall outer face of described sleeve inwardly offers the second screw running through described inserting-plate hole, and screw screws at this second screw and in being located in the through hole of described inserted sheet.
5. crankshaft timing gear draw-off gear according to claim 4, it is characterised in that the sleeve lateral wall corresponding with described second screw offers screw slot to make way.
6. crankshaft timing gear draw-off gear according to claim 4, it is characterised in that described calabash shaped through hole also includes screw socket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410556846.3A CN104308799B (en) | 2014-10-20 | 2014-10-20 | Crankshaft timing gear draw-off gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410556846.3A CN104308799B (en) | 2014-10-20 | 2014-10-20 | Crankshaft timing gear draw-off gear |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104308799A CN104308799A (en) | 2015-01-28 |
| CN104308799B true CN104308799B (en) | 2016-07-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410556846.3A Active CN104308799B (en) | 2014-10-20 | 2014-10-20 | Crankshaft timing gear draw-off gear |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111300333B (en) * | 2020-04-07 | 2024-05-03 | 重庆江增船舶重工有限公司 | Mixed-flow turbocharger shaft sleeve mounting tool and method |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4210990A (en) * | 1978-12-14 | 1980-07-08 | B. K. Sweeney Manufacturing Company | Gear puller |
| US5165156A (en) * | 1990-05-29 | 1992-11-24 | Shultz William E | Clutch housing assembly and planetary gear assembly tool |
| US5117546A (en) * | 1991-06-17 | 1992-06-02 | Bethlehem Steel Corporation | Apparatus and method for replacing a bull gear on a trunnion |
| US6006411A (en) * | 1998-09-23 | 1999-12-28 | Motorbay Company | Bearing carrier puller improvements |
| CN2501649Y (en) * | 2001-10-18 | 2002-07-24 | 石油大学(华东) | Novel extractor |
| CN2589148Y (en) * | 2002-12-06 | 2003-12-03 | 重庆力帆实业（集团）有限公司 | Engine correct time gear mounting apparatus |
| CN200957547Y (en) * | 2006-06-30 | 2007-10-10 | 重庆隆鑫工业（集团）有限公司 | Shaft-gear detaching workpiece |
| CN201437198U (en) * | 2009-08-12 | 2010-04-14 | 广西玉柴机器股份有限公司 | Device for drawing timing gears |
| CN203077201U (en) * | 2013-01-16 | 2013-07-24 | 江苏新誉重工科技有限公司 | Wind driven generator impeller stop pin shaft pulling device |
| CN204123347U (en) * | 2014-10-20 | 2015-01-28 | 广西玉柴机器股份有限公司 | Crankshaft timing gear draw-off gear |
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- 2014-10-20 CN CN201410556846.3A patent/CN104308799B/en active Active
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| CN104308799A (en) | 2015-01-28 |
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