CN204527275U - The vibration cancelling arrangement of pipe column type power-assisted steering system servo unit - Google Patents
The vibration cancelling arrangement of pipe column type power-assisted steering system servo unit Download PDFInfo
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- CN204527275U CN204527275U CN201520186718.4U CN201520186718U CN204527275U CN 204527275 U CN204527275 U CN 204527275U CN 201520186718 U CN201520186718 U CN 201520186718U CN 204527275 U CN204527275 U CN 204527275U
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- steering system
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- pipe column
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Abstract
The utility model discloses a kind of vibration cancelling arrangement of pipe column type power-assisted steering system servo unit, this servo unit forms primarily of housing, worm-and-wheel gear, bearing, motor and ECU; Housing comprises the chamber of body and cylindrical tube shape, and chamber is positioned at one end of body; One end of worm screw is fixedly connected with pendulum bearing, and the other end of worm screw extend in the body of housing; Pendulum bearing is fixed in chamber, and wherein, vibration cancelling arrangement comprises: damping piece, and between the madial wall that damping piece is arranged on the chamber of housing and pendulum bearing, and damping piece is along the outer ring circumference encirclement pendulum bearing of pendulum bearing.The vibration cancelling arrangement of the pipe column type power-assisted steering system servo unit that the utility model provides eliminates diameter clearance between pendulum bearing and the madial wall in chamber by arranging damping piece between the madial wall in the chamber of pendulum bearing and housing, inhibit the relative movement between pendulum bearing and housing, change the oscillation frequency of system, thus decrease vibration & noise.
Description
Technical field
The utility model relates to the structure of automobile steering system, particularly relates to a kind of vibration cancelling arrangement of pipe column type power-assisted steering system servo unit.
Background technology
Automobile steering system is the important composition on automobile, and power-assisted steering system generally includes servo unit.
Many assemblies of servo unit are arranged in the housing, and the assembly of the two, by worm and gear transferring power, in the fitting process of actual production, together with being normally fitted in advance with pendulum bearing by worm screw, then installs on housing by servo unit.
After worm screw and pendulum bearing are arranged on housing, then install bearing cap shim additional.Gap is left in the bottom of pendulum bearing and housing, and when road conditions are bad, such as, when running car is on the stone road jolted, the gap between pendulum bearing and housing easily causes vibration and noise.Even if bearing cap shim can push bearing to housing bottom, but this thrust is inadequate.If the thrust of bearing cap shim is excessive, the diameter clearance that can affect pendulum bearing makes the oscillating function of pendulum bearing impaired, and therefore the pressure of bearing cap shim is limited.
Leave gap between pendulum bearing 2 of the prior art and the bottom surface 13 in chamber 12, when road conditions are bad, when jolting, easily there is relative movement and vibration in pendulum bearing 2, causes noise.The present embodiment, by being provided with above-mentioned O shape circle 3 as damping piece, inhibit the relative movement of pendulum bearing 2, changes the oscillation frequency of system, decrease vibration & noise.
As the preferred implementation of one, the quantity that can arrange above-mentioned groove 121 and described O shape circle 3 is two, is parallel to each other between two grooves 121.It will be appreciated by persons skilled in the art that the quantity of O shape circle 3 and groove 121 can be arranged according to concrete design requirement.
The vibration cancelling arrangement of the pipe column type power-assisted steering system servo unit that the utility model embodiment one provides encloses by arranging O shape between the madial wall in the chamber of pendulum bearing and housing the diameter clearance eliminated between pendulum bearing and the madial wall in chamber, inhibit the relative movement between pendulum bearing and housing, change the oscillation frequency of system, thus decrease vibration & noise.
Utility model content
The utility model provides a kind of vibration cancelling arrangement of pipe column type power-assisted steering system servo unit, to solve the problems of the prior art, eliminates the vibration & noise between pendulum bearing and housing.
The utility model provides a kind of vibration cancelling arrangement of pipe column type power-assisted steering system servo unit, and described pipe column type power-assisted steering system servo unit comprises housing, pendulum bearing and worm screw;
Described housing comprises the chamber of body and cylindrical tube shape, and described chamber is positioned at one end of described body;
One end of described worm screw is fixedly connected with described pendulum bearing, and the other end of described worm screw extend in the body of described housing;
Described pendulum bearing is fixed in described chamber, and wherein, described vibration cancelling arrangement comprises:
Damping piece, described damping piece is arranged between the madial wall in the chamber of described housing and described pendulum bearing, and described damping piece surrounds described pendulum bearing along the outer ring circumference of described pendulum bearing.
The vibration cancelling arrangement of pipe column type power-assisted steering system servo unit as above, wherein, preferably, described vibration cancelling arrangement also comprises the groove on the inwall being arranged on described chamber;
Described damping piece is O shape circle, and described O shape circle is embedded in the trench.
The vibration cancelling arrangement of pipe column type power-assisted steering system servo unit as above, wherein, preferably, the quantity of described groove and described O shape circle is two.
The vibration cancelling arrangement of pipe column type power-assisted steering system servo unit as above, wherein, preferably, is parallel to each other between two grooves.
The vibration cancelling arrangement of pipe column type power-assisted steering system servo unit as above, wherein, preferably, described damping piece is oil layer.
The vibration cancelling arrangement of pipe column type power-assisted steering system servo unit as above, wherein, preferably, described vibration cancelling arrangement also comprises bearing cap shim, described bearing cap shim is located at the outside of described pendulum bearing, and described bearing cap shim is fixedly connected with the body of described housing.
The vibration cancelling arrangement of pipe column type power-assisted steering system servo unit as above, wherein, preferably, the body of described housing is provided with tapped bore, described bearing cap shim is fixed on the body with coordinating of described tapped bore by bolt by described bearing cap shim.
The vibration cancelling arrangement of the pipe column type power-assisted steering system servo unit that the utility model provides eliminates diameter clearance between pendulum bearing and the madial wall in chamber by arranging damping piece between the madial wall in the chamber of pendulum bearing and housing, inhibit the relative movement between pendulum bearing and housing, change the oscillation frequency of system, thus decrease vibration & noise.
Accompanying drawing explanation
The vibration cancelling arrangement structural representation of the pipe column type power-assisted steering system servo unit that Fig. 1 provides for the utility model embodiment one;
Fig. 2 is the cutaway view of Fig. 1;
Fig. 3 is the confined state schematic diagram of O shape circle;
The vibration cancelling arrangement structural representation of the pipe column type power-assisted steering system servo unit that Fig. 4 provides for the utility model embodiment two;
Fig. 5 is the cutaway view of Fig. 4;
The decomposing schematic representation of the vibration cancelling arrangement of the pipe column type power-assisted steering system servo unit that Fig. 6 provides for the utility model embodiment two.
Detailed description of the invention
Below in conjunction with embodiment, the utility model is described in detail.The identical Reference numeral of wherein identical parts represents.It should be noted that, the word "front", "rear" of use is described below, "left", "right", "up" and "down" refer to direction in accompanying drawing, word " interior " and " outward " refer to the direction towards or away from particular elements geometric centre respectively.
Embodiment one
The vibration cancelling arrangement structural representation of the pipe column type power-assisted steering system servo unit that Fig. 1 provides for the utility model embodiment one, Fig. 2 is the cutaway view of Fig. 1.
As depicted in figs. 1 and 2, the utility model embodiment provides a kind of vibration cancelling arrangement of pipe column type power-assisted steering system servo unit, and described pipe column type power-assisted steering system servo unit comprises housing 1, pendulum bearing 2 and worm screw 4.
Wherein, above-mentioned housing 1 comprises the chamber 12 of body 11 and cylindrical tube shape, and this chamber 12 is positioned at one end of body 11.One end of worm screw 4 is fixedly connected with described pendulum bearing 2, and the other end extend in the body 11 of housing 1, thus can with the worm wheel outputting power in servo unit.As depicted in figs. 1 and 2, together with one end of worm screw 4 is fitted in advance with the inner ring of pendulum bearing 2, the other end of worm screw 4 extend in body 11.
Above-mentioned pendulum bearing 2 is contained in chamber 12, and pendulum bearing 2 leaves certain gap with the bottom surface 13 in chamber 12.The vibration cancelling arrangement of the pipe column type power-assisted steering system servo unit that the utility model embodiment provides comprises damping piece, between the madial wall that this damping piece is arranged on the chamber 12 of described housing 1 and described pendulum bearing 2, and described damping piece surrounds described pendulum bearing 2 along the outer ring circumference of described pendulum bearing 2.
As the preferred implementation of one, this damping piece can be that the material of O shape circle 3, O shape circle 3 can have multiple, elastic material such as such as rubber etc.Fig. 3 is the confined state schematic diagram of O shape circle, and as shown in figures 1 and 3, the inwall in described chamber 12 is provided with groove 121, groove 121 can be formed by the mode of machine up such as turning, and above-mentioned O shape circle 3 is embedded and is fixed in this groove 121.
Embodiment two
The vibration cancelling arrangement structural representation of the pipe column type power-assisted steering system servo unit that Fig. 4 provides for the utility model embodiment two, Fig. 5 is the cutaway view of Fig. 4.
As shown in Figure 4 and Figure 5, the utility model embodiment provides a kind of vibration cancelling arrangement of pipe column type power-assisted steering system servo unit, and described pipe column type power-assisted steering system servo unit comprises housing 1, pendulum bearing 2 and worm screw 4.
Wherein, above-mentioned housing 1 comprises the chamber 12 of body 11 and cylindrical tube shape, and this chamber 12 is positioned at one end of body 11.One end of worm screw 4 is fixedly connected with described pendulum bearing 2, and the other end extend in the body 11 of housing 1, thus can with the worm wheel outputting power in servo unit.As shown in Figure 4 and Figure 5, together with one end of worm screw 4 is fitted in advance with the inner ring of pendulum bearing 2, the other end of worm screw 4 extend in body 11.
The vibration cancelling arrangement of the pipe column type power-assisted steering system servo unit that the utility model embodiment provides comprises damping piece, with the difference of embodiment one is, this damping piece is oil layer 5, and this oil layer 5 is arranged between the madial wall in pendulum bearing 2 and chamber 12.This oil layer 5 is made up of full-bodied grease, and as a kind of concrete implementation, model can be adopted to be the grease of Nye PG-44A, and under 40 degrees Celsius, its viscosity can reach 1920000 centistokes.
The decomposing schematic representation of the vibration cancelling arrangement of the pipe column type power-assisted steering system servo unit that Fig. 6 provides for the utility model embodiment two.On the basis of above-described embodiment, described vibration cancelling arrangement also comprises bearing cap shim 6, and as shown in Figure 5 and Figure 6, this bearing cap shim 6 is located at the outside of pendulum bearing 2, and this bearing cap shim 6 is fixedly connected with the body 11 of housing 1.
The mode that connection between bearing cap shim 6 and body 11 can be threaded connection realizes, particularly, the body 11 of described housing 1 is provided with tapped bore 111, and described bearing cap shim 6 is fixed on described body 11 with coordinating of described tapped bore 111 by bolt 7 by described bearing cap shim 6.
The vibration cancelling arrangement of the pipe column type power-assisted steering system servo unit that the utility model embodiment two provides eliminates diameter clearance between pendulum bearing and the madial wall in chamber by arranging oil layer between the madial wall in the chamber of pendulum bearing and housing, inhibit the relative movement between pendulum bearing and housing, change the oscillation frequency of system, thus decrease vibration & noise.
Last it is noted that above embodiment is only in order to illustrate the technical solution of the utility model, be not intended to limit; Although be described in detail the utility model with reference to previous embodiment, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the scope of each embodiment technical scheme of the utility model.
Claims (7)
1. a vibration cancelling arrangement for pipe column type power-assisted steering system servo unit, described pipe column type power-assisted steering system servo unit comprises housing, pendulum bearing and worm screw;
Described housing comprises the chamber of body and cylindrical tube shape, and described chamber is positioned at one end of described body;
One end of described worm screw is fixedly connected with described pendulum bearing, and the other end of described worm screw extend in the body of described housing;
Described pendulum bearing is fixed in described chamber, it is characterized in that, described vibration cancelling arrangement comprises:
Damping piece, described damping piece is arranged between the madial wall in the chamber of described housing and described pendulum bearing, and described damping piece surrounds described pendulum bearing along the outer ring circumference of described pendulum bearing.
2. the vibration cancelling arrangement of pipe column type power-assisted steering system servo unit according to claim 1, is characterized in that, described vibration cancelling arrangement also comprises the groove on the inwall being arranged on described chamber;
Described damping piece is O shape circle, and described O shape circle is embedded in the trench.
3. the vibration cancelling arrangement of pipe column type power-assisted steering system servo unit according to claim 2, is characterized in that, the quantity of described groove and described O shape circle is two.
4. the vibration cancelling arrangement of pipe column type power-assisted steering system servo unit according to claim 3, is characterized in that, is parallel to each other between two grooves.
5. the vibration cancelling arrangement of pipe column type power-assisted steering system servo unit according to claim 1, is characterized in that, described damping piece is oil layer.
6. according to the vibration cancelling arrangement of the arbitrary described pipe column type power-assisted steering system servo unit of claim 1-5, it is characterized in that, described vibration cancelling arrangement also comprises bearing cap shim, described bearing cap shim is located at the outside of described pendulum bearing, and described bearing cap shim is fixedly connected with the body of described housing.
7. the vibration cancelling arrangement of pipe column type power-assisted steering system servo unit according to claim 6, it is characterized in that, the body of described housing is provided with tapped bore, and described bearing cap shim is fixed on the body with coordinating of described tapped bore by bolt by described bearing cap shim.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520186718.4U CN204527275U (en) | 2015-03-30 | 2015-03-30 | The vibration cancelling arrangement of pipe column type power-assisted steering system servo unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520186718.4U CN204527275U (en) | 2015-03-30 | 2015-03-30 | The vibration cancelling arrangement of pipe column type power-assisted steering system servo unit |
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| Publication Number | Publication Date |
|---|---|
| CN204527275U true CN204527275U (en) | 2015-08-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520186718.4U Active CN204527275U (en) | 2015-03-30 | 2015-03-30 | The vibration cancelling arrangement of pipe column type power-assisted steering system servo unit |
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| Country | Link |
|---|---|
| CN (1) | CN204527275U (en) |
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2015
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |