CN203076866U - Press fitting device for steering device gear shaft and torsion bar - Google Patents
Press fitting device for steering device gear shaft and torsion bar Download PDFInfo
- Publication number
- CN203076866U CN203076866U CN 201320071335 CN201320071335U CN203076866U CN 203076866 U CN203076866 U CN 203076866U CN 201320071335 CN201320071335 CN 201320071335 CN 201320071335 U CN201320071335 U CN 201320071335U CN 203076866 U CN203076866 U CN 203076866U
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- CN
- China
- Prior art keywords
- press fitting
- torsion bar
- base
- gear shaft
- clamp body
- Prior art date
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- Expired - Fee Related
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Abstract
The utility model belongs to a press fitting device, and in particular relates to a press fitting device for a steering device gear shaft and a torsion bar. The press fitting device is composed of a base, a clamp body, an upper locating rod and locating pins, wherein an assembly hole is formed in the base; the locating pins are symmetrically arranged on the circumference of the base; the assembly hole is internally provided with the clamp body; and the upper locating rod is arranged on the base below the clamp body. The press fitting device is simple in structure; during the press fitting process of the torsion bar, the gear shaft and the clamp body are arranged together and can deflect along with the center of the torsion bar, so that the consistency and coaxiality of the gear shaft and the center line of the torsion bar are ensured, and the press fitting quality is improved; and the cutting-in force of circumference is balanced during press fitting, so that the pressing-in force is stable, and the pulsing of the torsion bar after press fitting can be reduced. The press fitting device has the characteristics of being convenient to manufacture and quick to install, the coaxiality between a pressing-in head and the base is not required to be calibrated frequently, the work efficiency is improved, and the press fitting device is particularly suitable for press fitting application of the steering device gear shaft and the torsion bar.
Description
Technical field
The utility model belongs to a kind of press-loading apparatus, is specifically related to a kind of press-loading apparatus that is used for steering gear gear shaft and torsion bar.
Background technology
Gear shaft and torsion bar are the moment of torsion input and output device of steering gear the inside, the positive process of returning of steering gear is to rely on the elastic properties of materials of torsion bar to reset, so, in the steering gear the inside, it is the internal spline interference fit that general tooth is turned round the assembly press-fit approach, and the internal spline hardness of general gear shaft is more than 40HRC, and torsion bar hardness is between 30-40HRC, so also because two kinds of hardness are higher, and the incision power of internal spline is passive, so it is very big to press-fit the power that is pressed in the process, generally at 30-40KN, and press-fit the back beating of torsion bar also there is requirement, so press-loading apparatus is had higher requirement.Conventional mode adopts forcing press, press mounting structure partial pressure head and base two parts, and for the quality that guarantees to press-fit, head and base need very high axiality requirement.And conventional press-loading apparatus has following some shortcoming: 1, big owing to being pressed into power, the anchor clamps location is loosening easily, causes the axiality of pressure head and base overproof; 2, stroke very big (about 700mm) between pressure head and the base, the difficult axiality that guarantees pressure head and base; 3, the axiality of proofreading and correct between pressure head and the base need take much time, and has influenced productivity effect; 4, press-fit the back torsion bar and beat greatly, need to increase operation and carry out alignment.Therefore, at press-fiting of gear shaft and torsion bar, urgent need is taked a kind of more science and rational press-loading apparatus, promotes the total quality of gear axial compression torsion bar and reduce because of gear shaft, torsion bar assembly to press-fit unstable a series of problems of bringing to steering gear assembling and performance.
Summary of the invention
The purpose of this utility model is: provide a kind of and can effectively improve product and press-fit quality, promote high efficiency, reduce the press-loading apparatus that is used for steering gear gear shaft and torsion bar that needs to carry out straightening technology after press-fiting.
The technical solution of the utility model is:
A kind of press-loading apparatus that is used for steering gear gear shaft and torsion bar, it is made of base, clamp body, last backstay and alignment pin, it is characterized in that: base is provided with stair-stepping pilot hole, by alignment pin fixed cover and seam bolt symmetry shape alignment pin is installed on the base circumference in the pilot hole outside, by alignment pin clamp body is installed in the pilot hole of base, by spring and hold-down nut backstay is installed on the base of clamp body below.Described alignment pin is a spring positioning pin.
Advantage of the present utility model is:
This is used for the press-loading apparatus of steering gear gear shaft and torsion bar, simple in structure, torsion bar press-fits in the process, and gear shaft is with clamp body, can be offset along with the center of torsion bar, guaranteed the consistent of gear shaft and torsion bar center line, and then guaranteed to press-fit the torsion bar in the process and the axiality of gear shaft, improved and press-fit quality, and because axiality is good, circumference incision power equilibrium when press-fiting makes the power of being pressed into stable, torsion bar after press-fiting is beated reduce.This press-loading apparatus has characteristics easily manufactured, quick for installation, and the axiality between head and the base does not need often to calibrate, and operating efficiency is provided, and is specially adapted to steering gear gear shaft and torsion bar and press-fits use.
Description of drawings
Accompanying drawing 1 is a structural representation of the present utility model.
Among the figure: 1, gear shaft (workpiece), 2, clamp body, 3, alignment pin, 4, the alignment pin fixed cover, 5, pilot hole, 6, the seam bolt, 7, go up backstay, 8, base, 9, spring, 10, hold-down nut.
The specific embodiment
This press-loading apparatus that is used for steering gear gear shaft and torsion bar is made of base 8, clamp body 2, last backstay 7 and alignment pin 3.Base 8 is provided with stair-stepping pilot hole 5, by alignment pin fixed cover 4 and seam bolt 6 symmetry shapes alignment pin 3 is installed on base 8 circumference in pilot hole 5 outsides, and alignment pin 3 is a spring positioning pin.By alignment pin 3 clamp body 2 is installed in the pilot hole of base 8, by spring 9 and hold-down nut 10 backstay 7 is installed in base 8 pilot holes 5 of clamp body 2 belows.
Spring 9 lower ends of this press-loading apparatus are supported on pilot hole 5 end faces, last backstay 7 is because the tension force of spring 9 can make clamp body 2 float, during work, gear shaft (workpiece) 1 is placed in the clamp body 2, torsion bar (workpiece) is pressed into from gear shaft (workpiece) 1 upper end, press-fit in the process, when torsion bar (workpiece) and gear shaft (workpiece) 1 endoporus decentraction, the pressure that can produce a kind of lateral deviation drives clamp body 2 and is offset, the downward pressure of torsion bar (workpiece) can make unsteady clamp body 2 move down simultaneously, because clamp body 2 lower surfaces contact with stair-stepping pilot hole 5 end faces of base 8, pilot hole 5 end faces can support clamp body 2, and torsion bar (workpiece) is pressed in the gear shaft (workpiece) 1.
Because what clamp body 2 adopted is floating type, therefore the concentric of clamp body 2 and torsion bar (workpiece) can be freely adjusted, the total quality that press-fits can be promoted, and because circumference incision power equilibrium when press-fiting, make the power of being pressed into stable, torsion bar (workpiece) after press-fiting is beated reduce.This press-loading apparatus is simple in structure, not only is fit to the requirement that the steering gear gear shaft press-fits torsion bar, also is fit to the same interference part press-loading process that requires, and is with a wide range of applications.
Claims (1)
1. press-loading apparatus that is used for steering gear gear shaft and torsion bar, it is by base (8), clamp body (2), last backstay (7) and alignment pin (3) constitute, it is characterized in that: base (8) is provided with stair-stepping pilot hole (5), by alignment pin fixed cover (4) and seam bolt (6) symmetry shape alignment pin (3) is installed on base (8) circumference in pilot hole (5) outside, by alignment pin (3) clamp body (2) is installed in the pilot hole (5) of base (8), the base (8) of clamp body (2) below is gone up and by spring (9) and hold-down nut (10) backstay (7) is installed; Described alignment pin (3) is a spring positioning pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320071335 CN203076866U (en) | 2013-02-07 | 2013-02-07 | Press fitting device for steering device gear shaft and torsion bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320071335 CN203076866U (en) | 2013-02-07 | 2013-02-07 | Press fitting device for steering device gear shaft and torsion bar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203076866U true CN203076866U (en) | 2013-07-24 |
Family
ID=48822742
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320071335 Expired - Fee Related CN203076866U (en) | 2013-02-07 | 2013-02-07 | Press fitting device for steering device gear shaft and torsion bar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203076866U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108555573A (en) * | 2017-01-03 | 2018-09-21 | 东莞理工学院 | A kind of tooth shaft component assembly mechanism convenient for short axle indentation |
| CN114888558A (en) * | 2022-05-05 | 2022-08-12 | 安徽冠润汽车转向系统有限公司 | Novel pressure torsion bar calibration tool and use method thereof |
-
2013
- 2013-02-07 CN CN 201320071335 patent/CN203076866U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108555573A (en) * | 2017-01-03 | 2018-09-21 | 东莞理工学院 | A kind of tooth shaft component assembly mechanism convenient for short axle indentation |
| CN108555573B (en) * | 2017-01-03 | 2019-07-16 | 深圳市东钛宇精密机械有限公司 | A kind of tooth shaft component assembly mechanism convenient for short axle indentation |
| CN114888558A (en) * | 2022-05-05 | 2022-08-12 | 安徽冠润汽车转向系统有限公司 | Novel pressure torsion bar calibration tool and use method thereof |
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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: 20130724 Termination date: 20160207 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |