CN202571722U - Roll processing mechanism for torsion bar of tracked vehicle - Google Patents
Roll processing mechanism for torsion bar of tracked vehicle Download PDFInfo
- Publication number
- CN202571722U CN202571722U CN 201220263751 CN201220263751U CN202571722U CN 202571722 U CN202571722 U CN 202571722U CN 201220263751 CN201220263751 CN 201220263751 CN 201220263751 U CN201220263751 U CN 201220263751U CN 202571722 U CN202571722 U CN 202571722U
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- roller
- torsion bar
- processing mechanism
- roller shaft
- rolling
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Abstract
The utility model provides a roll processing mechanism for a torsion bar of a tracked vehicle, relates to a processing mechanism, and aims at solving the problems that the torsion of the tracked vehicle is short in fatigue life and poor in work reliability. The technical scheme one includes that the roll processing mechanism for the torsion bar of the tracked vehicle comprises a roller, a roller shaft, a press cover, a limiting piece, a first bearing and two second bearings. The first bearing and the two second bearings are respectively disposed on the roller shaft in sleeved mode. The first bearing is positioned between the two second bearings. The roller is fixedly connected with the roller shaft through the first bearing. Tooth-shaped gear hobs are disposed in the middle of the outer circumferential surface of the roller. Two ends of the roller shaft are disposed on the press cover. One side of the roller shaft is fixedly connected with a machine tool through the limiting piece. Unlike the technical scheme one, the technical scheme two suggests that the outer circumferential surface of the roller is an arc surface protruding towards the radial direction. The roll processing mechanism is used for rolling tension bars.
Description
Technical field
The utility model relates to a kind of organisation of working, belongs to the Machining Technology field.
Background technology
Torsion bar plays an important role in endless-track vehicle; The range of application of torsion bar is extremely extensive; Because torsion bar is to be prone to the consumption member in endless-track vehicle; Directly determining the serviceability of vehicle the service life of torsion bar, because the torsion bar in the endless-track vehicle exists the problem of weak point fatigue life, dependability difference, is problem demanding prompt solution so in the process of torsion bar, improve the service life and the reliability of torsion bar.
The utility model content
The purpose of the utility model provides a kind of rolling and processing mechanism of endless-track vehicle torsion bar, to solve torsion bar weak point fatigue life on the endless-track vehicle, the problem of dependability difference.
The utility model is to solve the problems of the technologies described above the technical scheme of taking to be: the technical scheme of the utility model comprises scheme one and scheme two.
Scheme one: the rolling and processing mechanism of said endless-track vehicle torsion bar comprises roller, roller shaft, gland, locating part, clutch shaft bearing and two second bearings; Clutch shaft bearing and two second bearings all are sleeved on the roller shaft; Clutch shaft bearing is between two second bearings; Roller is fixedly connected on the roller shaft through clutch shaft bearing; The middle part of said roller outer circumference surface is processed with a thread form gear hobbing, and the two ends of roller shaft are installed on the gland, and a side of roller shaft is fixedly connected on the lathe through locating part.
Scheme two: the rolling and processing mechanism of said endless-track vehicle torsion bar comprises roller, roller shaft, gland, locating part, clutch shaft bearing and two second bearings; Clutch shaft bearing and two second bearings all are sleeved on the roller shaft; Clutch shaft bearing is between two second bearings; Roller is fixedly connected on the roller shaft through clutch shaft bearing, and the wheel face of said roller is circular, and the excircle of roller be the arc surface of giving prominence to direction radially; The two ends of roller shaft are installed on the gland, and a side of roller shaft is fixedly connected on the lathe through locating part.
The utlity model has following beneficial effect: the gear rolling root of the utility model roller is designed to thread form, is used for the roll extrusion of the spline tooth root of torsion bar; The gear rolling root of roller is designed to circular arc, is used for the roll extrusion of bar portion, spline and bar portion transition circle segmental arc; Torsion bar is strengthened rolling and processing through the utility model to its surface.Not only reduced the profile arithmetic mean value on torsion bar surface through the rolling and processing of the utility model; Make radium be reduced to 0.8 μ m or 0.4 μ m by 3.2 μ m; And can make metal produce plastic deformation; Form certain depth on its surface and reach flow harden layer and certain precommpression internal stress between the 0.2mm to 0.8mm; To offset the tension that torsion bar suffered shock loading in the endless-track vehicle driving process causes fatigue crack, improved the stress state on top layer, limited generation and the development of fatigue crack effectively on the top layer; The utility model is simple in structure, and is easy to operate, has wide range of applications, and the torsion bar that processes through the utility model goes out to reverse continuously through the verification test of durability fatigue test and reaches more than 180,000 times.
Description of drawings
Fig. 1 is the main TV structure profile that the middle part of the roller outer circumference surface of the utility model is processed with a thread form gear hobbing; Fig. 2 is that the excircle of the roller of the utility model is the main TV structure profile to the arc surface that radially direction is outstanding; Fig. 3 is the main TV structure profile of roller shaft; Fig. 4 is the vertical view of Fig. 3, and Fig. 5 is the main TV structure profile that the middle part of roller outer circumference surface is processed with a thread form gear hobbing, and Fig. 6 is that the excircle of roller is the main TV structure profile to the arc surface that radially direction is outstanding.
The specific embodiment
The specific embodiment one: combine Fig. 1, Fig. 3, Fig. 4 and Fig. 5 that this embodiment is described; The rolling and processing mechanism of the said endless-track vehicle torsion bar of this embodiment comprises roller 1, roller shaft 2, gland 3, locating part 4, clutch shaft bearing 5 and two second bearings 6; Clutch shaft bearing 5 and two second bearings 6 all are sleeved on the roller shaft 2; Clutch shaft bearing 5 is between two second bearings 6, and roller 1 is fixedly connected on the roller shaft 2 through clutch shaft bearing 5, and the middle part of said roller 1 outer circumference surface is processed with a thread form gear hobbing 7; The two ends of roller shaft 2 are installed on the gland 3, and a side of roller shaft 2 is fixedly connected on the lathe 8 through locating part 4.
The specific embodiment two: combine Fig. 1, Fig. 3 and Fig. 4 explanation, the said roller shaft 2 of this embodiment is the high-carbon-chromium bearing steel roller shaft.High-carbon-chromium bearing steel is for making the most frequently used steel grade of bearing and bearing parts, and the high-carbon-chromium bearing steel roller shaft is applied to make in the utility model roller shaft more wear-resistant, long service life.Other composition and annexation are identical with the specific embodiment one.
The specific embodiment three: combine Fig. 1 and Fig. 5 explanation, the said roller 1 of this embodiment is the high-speed steel roller for tungsten.Tungsten is that the high-speed steel roller has better comprehensive performance, promptly has higher hardness, intensity, toughness and hear resistance all better, makes the whole wearability of utility model high, and other composition and annexation are identical with the specific embodiment one or two.
The specific embodiment four: combine Fig. 1 explanation, the radial spacing between said roller 1 of this embodiment and the clutch shaft bearing 5 is 0.01mm～0.03mm.Spacing between roller and the roller shaft is set to 0.01～0.03mm, and the setting of this spacing is in order to add lubricating oil, to help prolonging the service life of the utility model, and other composition and annexation are identical with the specific embodiment one.
The specific embodiment five: combine Fig. 1 and Fig. 5 explanation, the angle of thread α that the said roller 1 of this embodiment is taken turns the top is 55 °, and said angle of thread α is a circular arc, the radius R of circular arc angle of thread α
1Be 0.75mm.The roller that is provided with like this is mainly used in the spline tooth of roll extrusion trisection, and other composition and annexation are identical with the specific embodiment one.
The specific embodiment six: combine Fig. 2, Fig. 3, Fig. 4 and Fig. 6 that this embodiment is described; The rolling and processing mechanism of the said endless-track vehicle torsion bar of this embodiment comprises roller 1, roller shaft 2, gland 3, locating part 4, clutch shaft bearing 5 and two second bearings 6; Clutch shaft bearing 5 and two second bearings 6 all are sleeved on the roller shaft 2, and clutch shaft bearing 5 is between two second bearings 6, and roller 1 is fixedly connected on the roller shaft 2 through clutch shaft bearing 5; The wheel face of said roller 1 is circular; The excircle of roller 1 is that the two ends of roller shaft 2 are installed on the gland 3 to the outstanding arc surface 7 of direction radially, and a side of roller shaft 2 is fixedly connected on the lathe 8 through locating part 4.
The specific embodiment seven: combine Fig. 2, Fig. 3 and Fig. 4 explanation, the said roller shaft 2 of this embodiment is the high-carbon-chromium bearing steel roller shaft.High-carbon-chromium bearing steel is for making the most frequently used steel grade of bearing and bearing parts, and the high-carbon-chromium bearing steel roller shaft is applied to make in the utility model roller shaft more wear-resistant, long service life.Other composition and annexation and specific embodiment six phase are together.
The specific embodiment eight: combine Fig. 2 and Fig. 6 explanation, the said roller 1 of this embodiment is the high-speed steel roller for tungsten.Tungsten is that the high-speed steel roller has better comprehensive performance, promptly has higher hardness, intensity, toughness and hear resistance all better, makes the whole wearability of the utility model high, and other composition and annexation are identical with the specific embodiment six or seven.
The specific embodiment nine: combine Fig. 2 explanation, the radial spacing between said roller 1 of this embodiment and the clutch shaft bearing 5 is 0.01mm～0.03mm.Spacing between roller and the roller shaft is set to 0.01～0.03mm, and the setting of this spacing is in order to add lubricating oil, to help prolonging the service life of the utility model, other composition and annexation and specific embodiment six phase with.
The specific embodiment ten: combine Fig. 2 and Fig. 6 that this embodiment is described, the wheel top of the said roller 1 of this embodiment is a circular arc, the radius R of circular arc
2Be 5mm.Be provided with like this is that diameter for the bar portion of torsion bar is at 40～60mm; Arc radius is during less than 200mm; The utility model can bear enough radial loads when roll extrusion; Having guaranteed simultaneously has suitable contact area with the bar portion and the circular arc of axle, and other composition and annexation and specific embodiment six phase are together.
Operation principle in conjunction with the specific embodiment one, two, three, four, five, six, seven, eight, nine and ten explanation the utility model: at first the utility model is fixedly connected on the lathe 7 through locating part 4; Then torsion bar is fixed to clamp on lathe; Roller 1 is connected with power source; Power source is for clamping application of force oil cylinder, utilizes the spline tooth root of thread form gear hobbing 7 roll extrusion torsion bars of the middle part processing of said roller 1 outer circumference surface, the top of roller 1 is aligned the spline tooth root after; Roller 1 begins roll extrusion work under the effect of the hydraulic system application of force; Simultaneously lathe 8 mounting plates drive the utility model and carry out axial feed, accomplish the roll extrusion to a keyway of torsion bar, then the next tooth of the spline through roll extrusion torsion bar behind the gear device; Utilize bar portion, torsion bar upper spline and the bar portion transition circle segmental arc of excircle for coming the roll extrusion torsion bar of roller 1 to the arc surface 7 that radially direction is outstanding; Roller 1 is contacted with torsion bar; Act on the roller 1 through the hydraulic system application of force; The torsion bar rotation, the supporting plate on the lathe 8 drives whole rolling mechanism and carries out axial feed, accomplishes the roll extrusion to bar portion, torsion bar upper spline and the bar portion transition circle segmental arc of torsion bar.
Claims (10)
1. the rolling and processing mechanism of an endless-track vehicle torsion bar; The rolling and processing mechanism that it is characterized in that said endless-track vehicle torsion bar comprises roller (1), roller shaft (2), gland (3), locating part (4), clutch shaft bearing (5) and two second bearings (6); Clutch shaft bearing (5) and two second bearings (6) all are sleeved on the roller shaft (2); Clutch shaft bearing (5) is positioned between two second bearings (6), and roller (1) is fixedly connected on the roller shaft (2) through clutch shaft bearing (5), and the middle part of said roller (1) outer circumference surface is processed with a thread form gear hobbing (7); The two ends of roller shaft (2) are installed on the gland (3), and a side of roller shaft (2) is fixedly connected on the lathe (8) through locating part (4).
2. the rolling and processing mechanism of endless-track vehicle torsion bar according to claim 1 is characterized in that said roller shaft (2) is the high-carbon-chromium bearing steel roller shaft.
3. the rolling and processing mechanism of endless-track vehicle torsion bar according to claim 1 and 2 is characterized in that said roller (1) is the high-speed steel roller for tungsten.
4. the rolling and processing mechanism of endless-track vehicle torsion bar according to claim 1 is characterized in that the radial spacing between said roller (1) and the clutch shaft bearing (5) is 0.01mm～0.03mm.
5. the rolling and processing mechanism of endless-track vehicle torsion bar according to claim 1 is characterized in that the angle of thread α at said roller (1) wheel top is 55 °, and said angle of thread α is a circular arc, the radius R of circular arc angle of thread α
1Be 0.75mm.
6. the rolling and processing mechanism of an endless-track vehicle torsion bar; The rolling and processing mechanism that it is characterized in that said endless-track vehicle torsion bar comprises roller (1), roller shaft (2), gland (3), locating part (4), clutch shaft bearing (5) and two second bearings (6); Clutch shaft bearing (5) and two second bearings (6) all are sleeved on the roller shaft (2); Clutch shaft bearing (5) is positioned between two second bearings (6); Roller (1) is fixedly connected on the roller shaft (2) through clutch shaft bearing (5), and the wheel face of said roller (1) is circular, and the excircle of roller (1) be the arc surface of giving prominence to direction radially (7); The two ends of roller shaft (2) are installed on the gland (3), and a side of roller shaft (2) is fixedly connected on the lathe (8) through locating part (4).
7. the rolling and processing mechanism of endless-track vehicle torsion bar according to claim 6 is characterized in that said roller shaft (2) is the high-carbon-chromium bearing steel roller shaft.
8. according to the rolling and processing mechanism of claim 6 or 7 described endless-track vehicle torsion bars, it is characterized in that said roller (1) is the high-speed steel roller for tungsten.
9. the rolling and processing mechanism of endless-track vehicle torsion bar according to claim 6 is characterized in that the radial spacing between said roller (1) and the clutch shaft bearing (5) is 0.01mm～0.03mm.
10. the rolling and processing mechanism of endless-track vehicle torsion bar according to claim 6, the wheel top that it is characterized in that said roller (1) is a circular arc, the radius R of circular arc
2Be 5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220263751 CN202571722U (en) | 2012-06-06 | 2012-06-06 | Roll processing mechanism for torsion bar of tracked vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220263751 CN202571722U (en) | 2012-06-06 | 2012-06-06 | Roll processing mechanism for torsion bar of tracked vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202571722U true CN202571722U (en) | 2012-12-05 |
Family
ID=47241174
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220263751 Expired - Fee Related CN202571722U (en) | 2012-06-06 | 2012-06-06 | Roll processing mechanism for torsion bar of tracked vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202571722U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102017102447A1 (en) | 2017-02-08 | 2018-08-09 | Eckehard Müller | Method for installing a compressive residual stress in a rotationally symmetrical metal component, torsion bar and use of such |
| CN112570509A (en) * | 2020-12-23 | 2021-03-30 | 同济大学 | Tool head for roll forming a part |
-
2012
- 2012-06-06 CN CN 201220263751 patent/CN202571722U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102017102447A1 (en) | 2017-02-08 | 2018-08-09 | Eckehard Müller | Method for installing a compressive residual stress in a rotationally symmetrical metal component, torsion bar and use of such |
| DE102017102447B4 (en) | 2017-02-08 | 2019-03-21 | Eckehard Müller | Method for installing a compressive residual stress in a rotationally symmetrical metal component, torsion bar and use of such |
| CN112570509A (en) * | 2020-12-23 | 2021-03-30 | 同济大学 | Tool head for roll forming a part |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121205 Termination date: 20170606 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |