CN109128708A - A kind of thrust wheel wheel shaft processing method - Google Patents
A kind of thrust wheel wheel shaft processing method Download PDFInfo
- Publication number
- CN109128708A CN109128708A CN201811146662.4A CN201811146662A CN109128708A CN 109128708 A CN109128708 A CN 109128708A CN 201811146662 A CN201811146662 A CN 201811146662A CN 109128708 A CN109128708 A CN 109128708A
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- CN
- China
- Prior art keywords
- bar
- wheel shaft
- processing method
- thrust wheel
- tempering
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- 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.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
Abstract
The present invention provides a kind of thrust wheel wheel shaft processing method, is not in the mood for outer circle Vehicle Processing of the driving skills art realization to whole bar using bar, instead of the Vehicle Processing technique carried out again after the segmentation cutting of existing bar；So that wheel shaft surface is generated plastic deformation by roll process, eliminates the surface defects such as machining knife mark, pit using metal flow, improve surface smoothness, increase the compression on wheel shaft surface, improve finished surface anti-fatigue performance；Pass through induction heating, it is rapidly heated and isothermal treatment for short time, fining austenite grains, reduce workpiece surface oxide skin, it is quenched using water based quenching agent, inside workpiece is made to obtain tiny cryptocrystalline martensite, pass through the tempering of proper temperature, to achieve the purpose that heat treatment cost is greatly reduced instead of quenched process.
Description
Technical field
The present invention relates to a kind of tracked construction equipment thrust wheel wheel shaft processing methods, belong to thrust wheel wheel shaft processing technology
Field.
Background technique
Thrust wheel almost carries complete machine total weight as the critical component in tracked construction equipment running gear,
And the railway effect of crawler belt operation is played, constantly by the excitation load impact complicated and changeable from crawler belt and upper frame, work
Condition is extremely severe.Thrust wheel wheel shaft is to be hit load and one of to wear maximum components in all components of thrust wheel,
Heat treatment performance, microstructure form, surface smoothness directly determine the thrust wheel service life, and thrust wheel wheel shaft is nonstandard portion at present
Part, processing and manufacturing mode have diversity and particularity, this just needs to seek a kind of special, mature thrust wheel wheel shaft processing
Method, to meet the technical requirements of product.
Conventional bogie wheel wheel shaft processing method is:
Bar is cut into pieces by required length --- outer circle is rough turn --- meshbeltfurnace or batch-type furnace carry out after being heated to certain temperature
--- high tempering --- numerically controlled lathe carries out outer circle, the processing of O-shaped tank car --- brill both ends pin hole ---, and quench by outer circle intermediate frequency for quenching
Fire --- lonneal-grinding.Above-mentioned processing method is widely used for a long time because can guarantee that product quality requires, but it is each
Process is more complicated, and production efficiency is low, energy consumption is high, equipment input cost is big, has been unable to satisfy energy conservation and environmental protection, efficiently batch production
It is required that.
Summary of the invention
The present invention provides a kind of thrust wheel wheel shaft processing method, to solve the deficiencies in the prior art.
The present invention is realized by following technical scheme:
A kind of thrust wheel wheel shaft processing method, the processing method are as follows:
Step 1: whole of thrust wheel wheel shaft initial bar is put into Centreless lathe, surface extruding is carried out by roll squeezer, makes table
After face is coarse, billet surface defect is removed, and ensure required diametric requirements；
Step 2: bar segmentation cutting；
Step 3: segmentation bar is passed through induction heater, bar is heated to 850~920 DEG C, hydrojet is carried out to bar and is quenched
Fire；
Step 4: bar, which is put into tempering furnace, carries out tempering, tempering temperature is 500~550 DEG C, and soaking time 1.5~3 is small
When；
Step 5: turning, O-shaped slot；
Step 6: draw-bore；
Step 7: surface is heated to 800~900 DEG C and is quenched by intermediate-frequency quenching machine tool；
Step 8: bar, which is put into tempering furnace, carries out lonneal processing, tempering temperature is 180~220 DEG C, soaking time 1~2
Hour；
Step 9: bar is carried out grinding, after keeping surface coarse again, required thrust wheel wheel shaft can be obtained.
Further, in step 1, surface roughness Ra6.3.
Further, in step 1, surface roughness is Ra0.4~Ra0.8.
The invention has the advantages that:
The present invention provides a kind of thrust wheel wheel shaft processing method, it is therefore an objective to while saving production cost, improving processing efficiency,
Lifting wheel axis quality level.Outer circle Vehicle Processing of the driving skills art realization to whole bar is not in the mood for it using bar, instead of existing bar
The Vehicle Processing technique carried out again after segmentation cutting；So that wheel shaft surface is generated plastic deformation by roll process, utilizes metal flow
The surface defects such as machining knife mark, pit are eliminated, surface smoothness is improved, increase the compression on wheel shaft surface, improve assembled watch
Face anti-fatigue performance；By induction heating, it is rapidly heated and isothermal treatment for short time, fining austenite grains reduces workpiece surface
Oxide skin is quenched using water based quenching agent, and inside workpiece is made to obtain tiny cryptocrystalline martensite, passes through returning for proper temperature
Fire, to achieve the purpose that heat treatment cost is greatly reduced instead of quenched process.
Specific embodiment
To keep the purposes, technical schemes and advantages of the invention implemented clearer, to the technical side in the embodiment of the present invention
Case is further described in more detail.Described embodiments are some of the embodiments of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts it is all its
His embodiment, shall fall within the protection scope of the present invention.The embodiment of the present invention is described in detail below.
A kind of thrust wheel wheel shaft processing method, the processing method are as follows:
Step 1: whole of thrust wheel wheel shaft initial bar is put into Centreless lathe, surface extruding is carried out by roll squeezer, makes table
Surface roughness reaches Ra6.3, removes billet surface defect, and ensure required diametric requirements；
Step 2: bar segmentation cutting；
Step 3: segmentation bar is passed through induction heater, bar is heated to 850~920 DEG C, hydrojet is carried out to bar and is quenched
Fire；
Step 4: bar, which is put into tempering furnace, carries out tempering, tempering temperature is 500~550 DEG C, and soaking time 1.5~3 is small
When；
Step 5: turning, O-shaped slot；
Step 6: draw-bore；
Step 7: surface is heated to 800~900 DEG C and is quenched by intermediate-frequency quenching machine tool；
Step 8: bar, which is put into tempering furnace, carries out lonneal processing, tempering temperature is 180~220 DEG C, soaking time 1~2
Hour；
Step 9: bar is carried out grinding, surface roughness is made to reach Ra0.4~Ra0.8, required thrust wheel can be obtained
Wheel shaft.
It follows that the present invention provides a kind of thrust wheel wheel shaft processing method, it is therefore an objective to add saving production cost, improving
While work efficiency rate, lifting wheel axis quality level.Outer circle Vehicle Processing of the driving skills art realization to whole bar, generation are not in the mood for it using bar
For the Vehicle Processing technique carried out again after the segmentation cutting of existing bar；Wheel shaft surface is set to generate plastic deformation by roll process,
The surface defects such as machining knife mark, pit are eliminated using metal flow, improve surface smoothness, the pressure for increasing wheel shaft surface is answered
Power improves finished surface anti-fatigue performance；By induction heating, it is rapidly heated and isothermal treatment for short time, fining austenite grains,
Workpiece surface oxide skin is reduced, is quenched using water based quenching agent, so that inside workpiece is obtained tiny cryptocrystalline martensite, pass through
The tempering of proper temperature, to achieve the purpose that heat treatment cost is greatly reduced instead of quenched process.
Finally it should be noted that: the above embodiments are merely illustrative of the technical scheme of the present invention and are not intended to be limiting thereof；To the greatest extent
The present invention is described in detail with reference to preferred embodiments for pipe, it should be understood by those ordinary skilled in the art that: still
It can modify to a specific embodiment of the invention or some technical features can be equivalently replaced；Without departing from this hair
The spirit of bright technical solution should all cover within the scope of the technical scheme claimed by the invention.
Claims (3)
1. a kind of thrust wheel wheel shaft processing method, which is characterized in that the processing method are as follows:
Step 1: whole of thrust wheel wheel shaft initial bar is put into Centreless lathe, surface extruding is carried out by roll squeezer, makes table
After face is coarse, billet surface defect is removed, and ensure required diametric requirements；
Step 2: bar segmentation cutting；
Step 3: segmentation bar is passed through induction heater, bar is heated to 850~920 DEG C, hydrojet is carried out to bar and is quenched
Fire；
Step 4: bar, which is put into tempering furnace, carries out tempering, tempering temperature is 500~550 DEG C, and soaking time 1.5~3 is small
When；
Step 5: turning, O-shaped slot；
Step 6: draw-bore；
Step 7: surface is heated to 800~900 DEG C and is quenched by intermediate-frequency quenching machine tool；
Step 8: bar, which is put into tempering furnace, carries out lonneal processing, tempering temperature is 180~220 DEG C, soaking time 1~2
Hour；
Step 9: bar is carried out grinding, after keeping surface coarse again, required thrust wheel wheel shaft can be obtained.
2. a kind of thrust wheel wheel shaft processing method according to claim 1, it is characterised in that: in step 1, surface is thick
Rugosity is Ra6.3.
3. a kind of thrust wheel wheel shaft processing method according to claim 1, it is characterised in that: in step 1, surface is thick
Rugosity is Ra0.4~Ra0.8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811146662.4A CN109128708A (en) | 2018-09-29 | 2018-09-29 | A kind of thrust wheel wheel shaft processing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811146662.4A CN109128708A (en) | 2018-09-29 | 2018-09-29 | A kind of thrust wheel wheel shaft processing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109128708A true CN109128708A (en) | 2019-01-04 |
Family
ID=64813397
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811146662.4A Pending CN109128708A (en) | 2018-09-29 | 2018-09-29 | A kind of thrust wheel wheel shaft processing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109128708A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112589393A (en) * | 2020-12-14 | 2021-04-02 | 舟山中南锚链有限公司 | Production process of anchor chain |
| CZ309224B6 (en) * | 2020-12-14 | 2022-06-01 | Comtes Fht A.S. | Method of heat and deformation processing of metal semi-finished product |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1547904A1 (en) * | 2003-11-27 | 2005-06-29 | Koyo Seiko Co., Ltd. | Rack and pinion steering apparatus and method of manufacturing rack shaft |
| CN103331583A (en) * | 2013-07-12 | 2013-10-02 | 徐州徐工铁路装备有限公司 | Caterpillar track hinge pin machining method |
| CN104493437A (en) * | 2014-11-25 | 2015-04-08 | 浙江铂达科技有限公司 | Oil pump shaft machining process |
| CN105711337A (en) * | 2014-12-04 | 2016-06-29 | 重庆聆益机械有限公司 | Thermal treatment process for automobile semi-axles |
| CN108411073A (en) * | 2017-02-10 | 2018-08-17 | 天津市松正电动汽车技术股份有限公司 | A kind of high torque motor axis heat processing technique |
-
2018
- 2018-09-29 CN CN201811146662.4A patent/CN109128708A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1547904A1 (en) * | 2003-11-27 | 2005-06-29 | Koyo Seiko Co., Ltd. | Rack and pinion steering apparatus and method of manufacturing rack shaft |
| CN103331583A (en) * | 2013-07-12 | 2013-10-02 | 徐州徐工铁路装备有限公司 | Caterpillar track hinge pin machining method |
| CN104493437A (en) * | 2014-11-25 | 2015-04-08 | 浙江铂达科技有限公司 | Oil pump shaft machining process |
| CN105711337A (en) * | 2014-12-04 | 2016-06-29 | 重庆聆益机械有限公司 | Thermal treatment process for automobile semi-axles |
| CN108411073A (en) * | 2017-02-10 | 2018-08-17 | 天津市松正电动汽车技术股份有限公司 | A kind of high torque motor axis heat processing technique |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112589393A (en) * | 2020-12-14 | 2021-04-02 | 舟山中南锚链有限公司 | Production process of anchor chain |
| CZ309224B6 (en) * | 2020-12-14 | 2022-06-01 | Comtes Fht A.S. | Method of heat and deformation processing of metal semi-finished product |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190104 |
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| RJ01 | Rejection of invention patent application after publication |