CN208866713U - A kind of hot dismantling device for gear and the lossless separation of axis - Google Patents
A kind of hot dismantling device for gear and the lossless separation of axis Download PDFInfo
- Publication number
- CN208866713U CN208866713U CN201821316995.2U CN201821316995U CN208866713U CN 208866713 U CN208866713 U CN 208866713U CN 201821316995 U CN201821316995 U CN 201821316995U CN 208866713 U CN208866713 U CN 208866713U
- Authority
- CN
- China
- Prior art keywords
- gear
- axis
- side plate
- hydraulic
- jacking block
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Gears, Cams (AREA)
Abstract
The utility model belongs to technical field of mechanical processing, more particularly to a kind of hot dismantling device for gear and the lossless separation of axis, solve the problems, such as that tearing method open using conventional heat carries out that damage parts even damage equipment is easily caused to lead to personal injury when gear and axis fractionation, workbench including having hydraulic mandril, workbench includes horizontally disposed bottom plate, bottom plate both ends, which are respectively perpendicular, is connected with the first side plate and the second side plate, second side plate interior sides are fixed with horizontally disposed hydraulic mandril mechanism, first side plate interior sides are provided with the fixed ring with the setting of hydraulic mandril mechanism central coaxial, cylindrical body jacking block is plugged in fixed ring, jacking block and axis connect.Utility model device structure is simple, the engaging member of gear and axis is firmly fixed on workbench, the length of jacking block should be greater than the elbow length of flame welding gun, guarantee that flame welding gun can carry out accessible heating to gear, makes the two complete to split by carrying out special heating means finally to gear and axis.
Description
Technical field
The utility model belongs to technical field of mechanical processing, and in particular to a kind of to tear open for the lossless isolated heat of gear and axis
Device.
Background technique
Gear is widely used to machinery field as important driving parts.The mating connection of gear and axial workpiece is closed
System view concrete condition and it is different.Not only to consider service condition, such as transmit the size of power, the stationarity of load, impact
Property etc., it is also contemplated that the craftsmanship of assembly.During practical set, the key connection in engagement process is not talked for the time being, it is main
Form can be divided into two kinds of clearance fit and interference fit.In order to guarantee torque transmission effect and required precision, interference fit more can
Guarantee the overall performance of the two, there is important transmission meaning.
Although interference fit greatly meets the transmission demand of gear and axis, the two is split when meeting overhaul of the equipments needs
When, then there is suitable difficulty.In particular with the extension for using the time, link position will appear stress deformation or slight erosion oxygen
Change phenomenon, exacerbates fractionation difficulty.
Existing fractionation mode mainly includes being split by tool and being expanded with heat and contract with cold firmly by relying on after its integrally heating
Performance, which is realized, to be split.The tool of fractionation includes hydraulic jack, sledgehammer and drawing horse.Usually make axial workpiece due to splitting firmly
It is broken, therefore can be carried out hot fractionation using the expansion and contraction between gear and axis being more biased towards in machining.
Although conventional hot method for splitting can be realized the separation of gear and axis, but heat is torn open method and mainly added using concentration
Heat integrally heats gear when removing, the part axis that heating position is covered whole gears and connect with gear, and
It is not directed to detailed step and the requirement to temperature control etc. in heating process, fully belongs to empirically operate.Such method is maximum
The drawbacks of be exactly to be easy to make gear that crystal variation occurs in thermal histories, cause to split cooling back-geared material inside organization
It changes, and then influences the mechanicalnesses such as original intensity, plasticity, hardness, impact flexibility, repeat impact drag and fatigue limit
Energy, the especially positions such as the gear teeth of gear and connecting hole, can occur irreversible damage.For some large-scale or oversized
Nonstandard speed reducer, the accessories such as the gear as contained by equipment and axis are nonstandard part, without replaceable part.If removed in maintenance
Tearing technique open because of heat in the process causes the decline of its mechanical performance even to damage, and the cost not only re-worked is huge, but also may produce
Raw extremely serious consequence, or even lead to a degree of personal injury etc. because equipment damage is serious.
Summary of the invention
The utility model easily causes damage parts very to solve to tear open using conventional heat when method carries out gear and axis fractionation
The problem of leading to personal injury to damage equipment, provide a kind of hot dismantling device for gear and the lossless separation of axis.
The utility model is achieved by the following technical solution: a kind of heat dismounting for gear and the lossless separation of axis
It sets, the workbench including having hydraulic mandril, workbench includes horizontally disposed bottom plate, and bottom plate both ends, which are respectively perpendicular, is connected with the
Side plate and the second side plate, the second side plate interior sides are fixed with horizontally disposed hydraulic mandril mechanism, and the first side plate interior sides are provided with
With the fixed ring of hydraulic mandril mechanism central coaxial setting, fixed ring is the hollow cylindrical structure for protruding the first surface of side plate,
Cylindrical body jacking block is plugged in fixed ring, jacking block and axis connect.
Hydraulic mandril mechanism includes the attachment base fixed with the second side plate, is provided with hydraulic cylinder, hydraulic cylinder in the middle part of attachment base
It is connected with hydraulic mandril, hydraulic oil inlet and oil outlet are provided on hydraulic cylinder, hydraulic oil inlet and oil outlet are connected by oil pipe
It is connected to hydraulic station.Wherein, attachment base is rectangle or circular slab, can be fixedly connected by bolt with the second side plate, be mainly used as adjusting
The position for saving hydraulic mandril mechanism makes it have concentricity with fixed ring.
The diameter of jacking block and the internal diameter of fixed ring it is identical and be less than axis diameter, the two difference range be 5~10mm.
The length of jacking block is greater than fixed the sum of ring length and gear thickness, and the length of jacking block should be greater than the curved of flame welding gun
Head length guarantees that flame welding gun has operating space between gear and the first side plate.
The working pressure range of hydraulic mandril mechanism is 0~300KN.
The quantity of hydraulic mandril mechanism is 3 or 4, and is averagely arranged within the scope of 360 °.
It is using the lossless isolated heat method of tearing open that the hot dismantling device of the utility model carries out gear and axis: by gear and axis knot
The spot of member surface is cleaned out and is fixed on the workbench with hydraulic mandril, and hydraulic mandril and gear face begin
Perpendicular contact is kept eventually, progressive solution further is carried out to gear using flame welding gun, while hydraulic mandril being cooperated to apply gear
Add jacking force, until gear realizes lossless separate with axis, the specific steps are as follows:
S1. normal pressure is applied to gear face using hydraulic mandril, guarantees that the engaging member of gear and axis is fixed on workbench
On；
S2. whole preheating is carried out to gear, flame temperature values are 220~250 DEG C, the flame that flame welding gun sprays when preheating
It is always positioned in the range of Gear Root circle and the movement that remains a constant speed, movement speed is 4~6mm/s；
S3. after the completion of preheating, the flame temperature that flame welding gun sprays is adjusted to 600~650 DEG C, two are carried out to gear
Secondary heating, heating sequence are radial gradually to gear centre position along gear in a manner of drawing circle since the root circle position of gear
It promotes, and distalmost end is heated to 1/3 arc position of gear compound graduation circular diameter；
S4. when heating 1/5 position of arc diameter arrival gear compound graduation circular diameter, the synchronous pushing tow by hydraulic mandril
Power is promoted to 150~180KN and keeps continuing stress；
S5. continue to promote heating interval to 1/3 position of gear compound graduation circular diameter, need to examine in the process
The relative position of gear and axis stops the pressure for heating and gradually being promoted hydraulic mandril once both discoveries have loosening situation immediately
Power, until completing the separation of gear and axis.
For the thermally equivalent for guaranteeing gear, step S3 Flame welding gun is 3~5mm/s along the speed that circular arc moves.
During heat is torn open, the gear side not contacted with hydraulic mandril should be arranged in flame welding gun, and flame welding gun sprays
Distance of the mouth apart from gear surface is maintained at 3~5cm.
The specified features and beneficial effect that the utility model has compared with prior art are:
Utility model device structure is simple, easily operated, the engaging member of gear and axis can be firmly fixed to work
On platform, the length of jacking block is greater than fixed the sum of ring length and gear thickness, and the length of jacking block should be greater than the curved of flame welding gun
Head length guarantees that flame welding gun can carry out accessible heating to gear, by carrying out special heating means most to gear and axis
The two is set to complete to split eventually.The utility model, which overcomes to tear open when method realizes that gear and axis are split using conventional heat, easily causes zero
The problem of part damages and in a disguised form increases cost and lead to equipment damage, personal injury.By flame welding gun to Gear Root circle
Circular arc range to reference diameter 1/3 carries out progressive solution, so that the generation of the connector position of gear and axis is a degree of
Heat expansion further realizes the fractionation of the two by mutually matched hydraulic mandril.Since flame welding gun directly heats position not
It is related to the gear teeth and axis, and considered critical heating temperature value, so that the gear and axis after the heating of flame welding gun will not be because of temperature
It spends high and crystal inside variation occurs, the part after splitting recycles the change that will not have intensity or toughness.This reality
There is positive meaning with the novel fractionation to gear and shaft coupling piece generally existing in existing machining field.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model realization device；
Fig. 2 is the structural schematic diagram of workbench in Fig. 1；
Fig. 3 is the structural representation side view of the first side plate in Fig. 2；
Fig. 4 is the structural representation front view of the first side plate in Fig. 2；
Fig. 5 is the structural representation front view of Tu1Zhong hydraulic mandril mechanism；
Fig. 6 is the structural representation side view of Tu1Zhong hydraulic mandril mechanism；
Fig. 7 is the structural schematic diagram of gear and axis engaging member；
Fig. 8 is the structural schematic diagram of jacking block.
In figure: 1- bottom plate, the first side plate of 2-, the second side plate of 3-, 4- hydraulic mandril mechanism, 5- axis, 6- gear, 7- jacking block,
8- fixed ring, 9- attachment base, 10- hydraulic cylinder, 11- hydraulic mandril, the hydraulic oil inlet of 12- and oil outlet.
Specific embodiment
The utility model is further elaborated referring to attached drawing, as shown in Figure 1 to 4, one kind is lossless for gear and axis
The hot dismantling device of separation, the workbench including having hydraulic mandril, workbench include horizontally disposed bottom plate 1,1 both ends of bottom plate point
It is not vertically connected with the first side plate 2 and the second side plate 3, horizontally disposed hydraulic mandril mechanism 4 is fixed on the inside of the second side plate 3,
The fixed ring 8 with the setting of 4 central coaxial of hydraulic mandril mechanism is provided on the inside of first side plate 2, fixed ring 8 is the first side plate of protrusion
The hollow cylindrical structure on 2 surfaces, cylindrical body jacking block 7 is plugged in fixed ring 8, and jacking block 7 and axis 5 connect.
As shown in figure 5, hydraulic mandril mechanism 4 includes the attachment base 9 fixed with the second side plate 3, it is provided in the middle part of attachment base 9
Hydraulic cylinder 10, hydraulic cylinder 10 are connected with hydraulic mandril 11, are provided with hydraulic oil inlet and oil outlet 12 on hydraulic cylinder 10, it is hydraulic into
Hydraulic fluid port and oil outlet 12 are connected with hydraulic station by oil pipe.The working pressure range of hydraulic mandril mechanism 4 is 0~300KN, hydraulic
The quantity of post rod mechanism 4 is 3 or 4, and is averagely arranged within the scope of 360 °.As shown in fig. 6, the number of hydraulic mandril mechanism 4
Amount is 4, and the spacing of adjacent hydraulic mandril mechanism 4 is set to 90 degrees.
As shown in figure 8, the diameter of jacking block 7 is identical as the internal diameter of fixed ring 8 and is less than the diameter of axis 5, the two difference range
For 5~10mm.The length of jacking block 7 is greater than the sum of 8 length of fixed ring and 6 thickness of gear, and the length of jacking block 7 should be greater than flame welding
The elbow length of rifle guarantees that flame welding gun has operating space between gear 6 and the first side plate 2.
As shown in fig. 7, the engaging member of gear 6 and axis 5 includes that the end of axis 5 is arranged in or the setting of gear 6 exists in gear 6
The middle part of axis 7.When the two being realized fractionation using the utility model method, it then follows the principle split from the direction of installation,
I.e. gear 6 is installed from the left end of axis 5, and fractionation when need to also be split from the left end of axis 5.It is hydraulic in the utility model
The 11 pushing tow direction of hydraulic mandril of post rod mechanism 4 and the fractionation direction of gear 6 are consistent.
Utility model device tears the realization device of method open mainly as gear 6 and 5 heat of axis, will be located at the first side plate 2
Grafting jacking block 7 in fixed ring 8.The gear 6 of fractionation is treated first and 5 engaging member of axis observe and determine splitting direction, will be torn open
One end of timesharing axis 5 identical with 6 direction of motion of gear, is arranged concentrically with jacking block 7；3 hydraulic mandril machine of the second side plate will be located at
The hydraulic mandril 11 of structure 4 carries out pushing tow and hold out against connecting with gear 6.It ultimately forms, gear 6 splits the identical shaft end in direction
5 hold out against with jacking block 7 and contact, and the other end of gear 6 is held out against with hydraulic mandril 11 to be contacted.
Before the engaging member of gear 6 and axis 5 is split, whole preheating, temperature control are carried out to gear 6 using flame welding gun
At 220~250 DEG C, after the completion of preheating, the temperature of flame welding gun is adjusted to 600~650 DEG C of ranges, and be close to the first side plate 2
To 6 end face of gear carry out reheating, heating method take since the root circle position of gear 6 by draw circle in a manner of along gear
6 is radial gradually to the propulsion of 6 center of gear, and distalmost end is heated to 1/3 arc position of 6 reference diameter of gear.
When heating, from the root circle of gear 6 reach 6 reference diameter of gear 1/5 position between region heat when, it is hydraulic
The jacking force of mandril 11 remains unchanged；
When heating 1/5 position of arc diameter arrival 6 reference diameter of gear, the synchronous jacking force by hydraulic mandril 11
It is promoted to 150~180KN and keeps stable；Continue to promote heating interval to 1/3 position of 6 reference diameter of gear, herein
Need to examine the relative position of gear 6 and axis 5 in the process, once both discoveries have loosening situation, stop immediately heating and by
The pressure of hydraulic mandril 11 is gradually promoted, until completing the separation of gear 6 and axis 5.
The lossless fractionation of gear 6 and axis 5 can be realized by tearing method and apparatus open using the utility model heat, for large-scale or especially big
The equipment without standard refill-unit such as the nonstandard speed reducer of type have great importance.
Claims (6)
1. a kind of hot dismantling device for gear and the lossless separation of axis, the workbench including having hydraulic mandril, it is characterised in that:
Workbench includes horizontally disposed bottom plate (1), and bottom plate (1) both ends, which are respectively perpendicular, is connected with the first side plate (2) and the second side plate
(3), horizontally disposed hydraulic mandril mechanism (4) is fixed on the inside of the second side plate (3), the first side plate (2) inside is provided with and liquid
The fixed ring (8) of linkage (4) central coaxial that bears down on one setting, fixed ring (8) are the hollow cylinder for protruding the first side plate (2) surface
Body structure, fixed ring (8) is interior to be plugged with cylindrical body jacking block (7), and jacking block (7) and axis (5) connect.
2. a kind of hot dismantling device for gear and the lossless separation of axis according to claim 1, it is characterised in that: hydraulic top
Linkage (4) includes the attachment base (9) fixed with the second side plate (3), is provided with hydraulic cylinder (10) in the middle part of attachment base (9), hydraulic
Cylinder (10) is connected with hydraulic mandril (11), and hydraulic oil inlet and oil outlet (12), hydraulic oil inlet are provided on hydraulic cylinder (10)
Hydraulic station is connected with by oil pipe with oil outlet (12).
3. a kind of hot dismantling device for gear and the lossless separation of axis according to claim 1, it is characterised in that: jacking block
(7) diameter is identical as the internal diameter of fixed ring (8) and is less than the diameter of axis (5), and the two difference range is 5~10mm.
4. a kind of hot dismantling device for gear and the lossless separation of axis according to claim 3, it is characterised in that: jacking block
(7) length is greater than the sum of fixed ring (8) length and gear (6) thickness, and the length of jacking block (7) should be greater than the curved of flame welding gun
Head length guarantees that flame welding gun has operating space between gear (6) and the first side plate (2).
5. a kind of hot dismantling device for gear and the lossless separation of axis according to claim 1, it is characterised in that: hydraulic top
The working pressure range of linkage (4) is 0~300KN.
6. a kind of hot dismantling device for gear and the lossless separation of axis according to claim 1 or 4, it is characterised in that: liquid
The quantity of linkage (4) of bearing down on one is 3 or 4, and is averagely arranged within the scope of 360 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821316995.2U CN208866713U (en) | 2018-08-16 | 2018-08-16 | A kind of hot dismantling device for gear and the lossless separation of axis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821316995.2U CN208866713U (en) | 2018-08-16 | 2018-08-16 | A kind of hot dismantling device for gear and the lossless separation of axis |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208866713U true CN208866713U (en) | 2019-05-17 |
Family
ID=66464792
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821316995.2U Active CN208866713U (en) | 2018-08-16 | 2018-08-16 | A kind of hot dismantling device for gear and the lossless separation of axis |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208866713U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108747309A (en) * | 2018-08-16 | 2018-11-06 | 大同墨西科技有限责任公司 | It is a kind of to tear method and its realization device open for gear and the heat of the lossless separation of axis |
| CN116174777A (en) * | 2023-01-12 | 2023-05-30 | 长沙天和钻具机械有限公司 | Tooth machine is got to impacter |
-
2018
- 2018-08-16 CN CN201821316995.2U patent/CN208866713U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108747309A (en) * | 2018-08-16 | 2018-11-06 | 大同墨西科技有限责任公司 | It is a kind of to tear method and its realization device open for gear and the heat of the lossless separation of axis |
| CN116174777A (en) * | 2023-01-12 | 2023-05-30 | 长沙天和钻具机械有限公司 | Tooth machine is got to impacter |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN208866713U (en) | A kind of hot dismantling device for gear and the lossless separation of axis | |
| CN111940510A (en) | Dismounting device and method for seamless steel pipe cold rolling expansion plug | |
| CN101307796A (en) | High intensity alloyed steel linkage rod deep cooling embrittlement bulge-breaking process | |
| CN108747309A (en) | It is a kind of to tear method and its realization device open for gear and the heat of the lossless separation of axis | |
| CN108500428B (en) | Welding method for flame tube tile of aircraft engine | |
| CN100408905C (en) | Manufacturing method of seamless steel pipe for pressure pipeline | |
| CN101768659B (en) | Heat treatment technology of ultra-long mandrel | |
| CN104017983A (en) | Long-life steel billet conveying roller way for heating furnace | |
| CN102517046B (en) | Top driving mechanism for drilling rod | |
| CN203923311U (en) | A kind of long-life process furnace billet conveying roller table | |
| CN217434204U (en) | Special tool for disassembling and assembling hydraulic coupler | |
| CN104607470A (en) | Improved energy-saving environment-friendly rolling mill guide and guard device with automatic correcting function | |
| CN214641527U (en) | Roller coupling sleeve dismounting device | |
| CN210398005U (en) | High-pressure oil pipe mechanical pressure head for controlling rotary valve table of precision forging machine manipulator | |
| CN102517047B (en) | Top driving mechanism for drilling rod | |
| CN109852786B (en) | Oil gas pipeline welded post-weld processing apparatus | |
| CN220555101U (en) | Turbine dismounting device for torque converter of diesel locomotive | |
| CN203335358U (en) | Disassembling tool of vacuum pump seal shaft sleeve | |
| CN104289595A (en) | Flat steel bend manufacturing mold and flat steel bend manufacturing device | |
| CN204194565U (en) | Band steel elbow-making mould and band steel elbow-making device | |
| CN201245689Y (en) | Integral heating device for steel plate | |
| CN212794803U (en) | Press mounting device for guide vane shaft sleeve of water turbine | |
| CN214643349U (en) | On-line replacement barrel butt joint device of roasting furnace | |
| CN221792518U (en) | Special tool for disassembling pump bearing on drilling site | |
| CN200977603Y (en) | Mechanism for correcting seamless connection shaft bore placement |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |