CN208634140U - Automobile power steering cylinder fulcrum bearing - Google Patents
Automobile power steering cylinder fulcrum bearing Download PDFInfo
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- CN208634140U CN208634140U CN201821233503.3U CN201821233503U CN208634140U CN 208634140 U CN208634140 U CN 208634140U CN 201821233503 U CN201821233503 U CN 201821233503U CN 208634140 U CN208634140 U CN 208634140U
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Abstract
The utility model provides automobile power steering cylinder fulcrum bearing, belong to auto-parts technical field, comprising: pedestal, it, which is equipped with, passes through mounting hole for piston rod, the right side of the pedestal is equipped with first annular step, and the right side of the first annular step is equipped with the second ring-shaped step, is recessed to the left along the second ring-shaped step and is formed with annular groove, it is recessed to the left along annular groove and is formed with annular cone slot, the cone tank, annular groove and mounting hole is coaxial；Sealing ring, it includes the ring body for being embedded in annular groove, ring body is flushed with the second ring-shaped step, it is extended with annular cone to the left along ring body, annular cone is embedded in and is close to annular cone slot, the annular cone left side is flushed with the left side of annular cone slot, and the center of sealing ring is equipped with the axis hole coaxial with mounting hole, and sealing ring is made of elastic material；Baffle ring is connected with the second ring-shaped step and compresses sealing ring, and baffle ring is equipped with the through-hole coaxial with mounting hole.
Description
Technical field
The utility model belongs to technical field of automobile parts, is related to automobile power steering cylinder fulcrum bearing.
Background technique
Automobile power steering cylinder is generally used for car assisted steering, provides hydraulic booster, to facilitate the steering of automobile to grasp
Make.It is generally assembled by cylinder body, piston rod, piston head and fulcrum bearing in automobile power steering cylinder, passes through hydraulic power band piston
Bar moves back and forth in cylinder body, cooperates some hydraulic packing elements in addition to reduce the leakage of hydraulic medium, predominantly O shape rubber
Circle, and fulcrum bearing is mainly that piston rod provides bearing and guiding role.
In the prior art, piston rod generally passes through O-ring tensioner with fulcrum bearing and seals, and after being used for a long time, O-ring is easy old
Change and become loose, and then hydraulic medium is caused to leak, the sealing effect of fulcrum bearing is poor.Therefore, it is necessary to design a kind of sealing
The good automobile power steering cylinder fulcrum bearing of effect.
Summary of the invention
The purpose of this utility model is the presence of the above problem in view of the prior art, proposes a kind of vapour that sealing effect is good
Vehicle electronic-controlled power steering cylinder fulcrum bearing.
The purpose of this utility model can be realized by the following technical scheme: automobile power steering cylinder fulcrum bearing, comprising:
Pedestal, is equipped with the mounting hole that passes through for piston rod, and the right side of the pedestal is equipped with first annular step, and described the
The right side of one ring-shaped step is equipped with the second ring-shaped step, is recessed to the left along the second ring-shaped step and is formed with annular groove, along annular
Groove is recessed to the left is formed with annular cone slot, and the internal diameter of annular cone slot right end is less than the internal diameter of annular groove and is greater than annular cone slot
Left end internal diameter, the cone tank, annular groove and mounting hole are coaxial；
Sealing ring comprising be embedded in the ring body of annular groove, ring body is flushed with the second ring-shaped step, is extended to the left along ring body
There is annular cone, annular cone is embedded in and is close to annular cone slot, and the annular cone left side is flushed with the left side of annular cone slot, and annular
The taper of cone is greater than the taper of annular cone slot, and the center of sealing ring is equipped with the axis hole coaxial with mounting hole, and the internal diameter of axis hole is small
In the internal diameter of mounting hole, sealing ring is made of elastic material；
Baffle ring is connected with the second ring-shaped step and compresses sealing ring, and baffle ring is equipped with the through-hole coaxial with mounting hole, through-hole
Internal diameter is greater than the internal diameter of mounting hole.
The outer rim of the first annular step is equipped with several circumferential uniform cloth as a further improvement of the utility model,
The locating slot set, locating slot are arc-shaped.
The left side of the pedestal is equipped with third ring-shaped step as a further improvement of the utility model, along third annular
Step, which is recessed inwardly, is formed with oil seal groove.
The baffle ring is detachably connected with the second ring-shaped step as a further improvement of the utility model,.
Based on the above-mentioned technical proposal, the utility model embodiment at least can produce following technical effect:
1. assemble fulcrum bearing, sealing ring annular cone insertion annular cone slot, the fit structure of taper make sealing ring with
Piston rod fitting is even closer, and sealing ring is fixed by baffle ring, it is not easy to skid off, compared to common O-ring, the application
In ring structure intensity it is higher, be hardly damaged, long service life, and bigger with the contact area of piston rod, sealing effect
Fruit is more preferable.
2., convenient for the positioning of fulcrum bearing and cylinder body, installation accuracy is higher by the locating slot of setting multiple arcs.
3. by setting third ring-shaped step, and oil seal groove is arranged in third ring-shaped step, convenient for the installation of oil sealing.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of one preferred embodiment of the utility model.
Fig. 2 is the cross-sectional view of pedestal.
Fig. 3 is the structural schematic diagram of pedestal.
In figure, 100, pedestal；100a, mounting hole；110, first annular step；111, locating slot；120, the second annular table
Rank；121, annular groove；122, annular cone slot；130, third ring-shaped step；131, oil seal groove；200, sealing ring；200a, axis
Hole；210, ring body；220, annular cone；300, baffle ring；300a, through-hole；400, screw.
Specific embodiment
It is specific embodiment of the utility model and in conjunction with attached drawing below, the technical solution of the utility model is made further
Description, but the utility model is not limited to these examples.
As shown in Figure 1 to Figure 3, this automobile power steering cylinder fulcrum bearing, comprising:
Pedestal 100 is equipped with and passes through mounting hole 100a for piston rod, and the right side of the pedestal 100 is equipped with first annular
Step 110, the right side of the first annular step 110 is equipped with the second ring-shaped step 120, recessed to the left along the second ring-shaped step 120
It falls into and is formed with annular groove 121, be recessed to the left along annular groove 121 and be formed with annular cone slot 122, annular cone 122 right end of slot
Internal diameter is less than the internal diameter of annular groove 121 and is greater than annular cone 122 left end internal diameter of slot, the cone tank, annular groove 121 and peace
It is coaxial to fill hole 100a；
Sealing ring 200 comprising the ring body 210 of insertion annular groove 121, ring body 210 and the second ring-shaped step 120 are neat
It is flat, it is extended with annular cone 220 to the left along ring body 210, annular cone 220 is embedded in and is close to annular cone slot 122, annular cone
220 left sides are flushed with the left side of annular cone slot 122, and the taper of annular cone 220 is greater than the taper of annular cone slot 122, sealing
The center of circle 200 is equipped with the axis hole 200a coaxial with mounting hole 100a, and the internal diameter of axis hole 200a is less than the internal diameter of mounting hole 100a,
Sealing ring 200 is made of elastic material；
Baffle ring 300 is connected with the second ring-shaped step 120 and compresses sealing ring 200, and baffle ring 300 is equipped with and mounting hole
100a coaxial through-hole 300a, through-hole 300a internal diameter are greater than the internal diameter of mounting hole 100a.
Specifically, the application is installed on the both ends of automobile power steering oil cylinder, structure substantially dome shape, dome center is opened
Confession piston rod passes through.
When assembling fulcrum bearing, piston rod is first passed through into mounting hole 100a, the shape cone of sealing ring 200 is then embedded in annular
Slot 122 is bored, and uses 300 fixed seal ring 200 of baffle ring, at this point, the structure of taper fit makes since sealing ring 200 has elastic
The insertion of sealing ring 200 is deeper, and piston rod is pressed tighter, therefore can according to need adjustment pressing force, and is selected biggish close
The decrement of sealing ring 200 can be improved in seal 200, so that sealing ring 200 is increased tighter, sealing effect is more preferable.Compared to common
O-ring, 200 structural strength of sealing ring in the application is higher, is hardly damaged, long service life, and the contact with piston rod
Area is bigger, and sealing effect is more preferable.
The outer rim of first annular step 110 is equipped with several locating slots 111 being arranged circumferentially, and locating slot 111 is in arc
Shape.
The application carries out installation cooperation by first annular step 110 and the cylinder body with automobile power steering cylinder, specifically,
In the cylindrical structure insertion cylinder body of first annular step 110, and by 100 closed cylinder of pedestal, when insertion, in order to guarantee first
Ring-shaped step 110 and cylinder body are coaxial, can be positioned by the locating slot 111 of several arcs, on locating slot 111 and cylinder body
It is four that corresponding location structure, which matches 111 quantity of locating slot to realize positioning and guiding function, in the application, coaxial to position
It is more accurate.
The left side of pedestal 100 is equipped with third ring-shaped step 130, is recessed inwardly along third ring-shaped step 130 and is formed with oil sealing
Slot 131, oil seal groove 131 is for installing oil sealing to realize the integral sealing of steering cylinder.
The external circumferential of second annular convex platform is uniformly arranged multiple threaded holes, and baffle ring 300 passes through screw 400 and the second annular
Step 120 is threadedly coupled, and threaded connection pressing force is big, guarantees that the elastic deformation amount of sealing ring 200 must to improve sealing effect
Baffle ring 300 can also be removed when wanting and replaces sealing ring 200, and the compatibility of fulcrum bearing is more preferable.
The specific embodiments described herein are merely examples of the spirit of the present invention.The utility model institute
Belonging to those skilled in the art can make various modifications or additions to the described embodiments or using similar
Mode substitute, but without departing from the spirit of the present application or beyond the scope of the appended claims.
Claims (4)
1. automobile power steering cylinder fulcrum bearing characterized by comprising
Pedestal, is equipped with the mounting hole that passes through for piston rod, and the right side of the pedestal is equipped with first annular step, first ring
The right side of shape step is equipped with the second ring-shaped step, is recessed to the left along the second ring-shaped step and is formed with annular groove, along annular groove
Recess is formed with annular cone slot to the left, and the internal diameter of annular cone slot right end is less than the internal diameter of annular groove and is greater than annular cone slot left end
Internal diameter, the annular cone slot, annular groove and mounting hole are coaxial；
Sealing ring comprising be embedded in the ring body of annular groove, ring body is flushed with the second ring-shaped step, is extended with ring to the left along ring body
Shape cone, annular cone are embedded in and are close to annular cone slot, and the annular cone left side is flushed with the left side of annular cone slot, and annular cone
Taper be greater than the taper of annular cone slot, the center of sealing ring is equipped with the axis hole coaxial with mounting hole, and the internal diameter of axis hole is less than peace
The internal diameter in hole is filled, sealing ring is made of elastic material；
Baffle ring is connected with the second ring-shaped step and compresses sealing ring, and baffle ring is equipped with the through-hole coaxial with mounting hole, through-hole internal diameter
Greater than the internal diameter of mounting hole.
2. automobile power steering cylinder fulcrum bearing according to claim 1, which is characterized in that outside the first annular step
Edge is equipped with several locating slots being arranged circumferentially, and locating slot is arc-shaped.
3. automobile power steering cylinder fulcrum bearing according to claim 2, which is characterized in that the left side of the pedestal is equipped with the
Three ring-shaped steps are recessed inwardly along third ring-shaped step and are formed with oil seal groove.
4. automobile power steering cylinder fulcrum bearing according to claim 3, which is characterized in that the baffle ring and the second annular table
Rank is detachably connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821233503.3U CN208634140U (en) | 2018-08-01 | 2018-08-01 | Automobile power steering cylinder fulcrum bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821233503.3U CN208634140U (en) | 2018-08-01 | 2018-08-01 | Automobile power steering cylinder fulcrum bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208634140U true CN208634140U (en) | 2019-03-22 |
Family
ID=65739759
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821233503.3U Active CN208634140U (en) | 2018-08-01 | 2018-08-01 | Automobile power steering cylinder fulcrum bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208634140U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111069404A (en) * | 2020-01-06 | 2020-04-28 | 泰富特钢悬架(成都)有限公司 | Corner cut punching die for automobile manufacturing |
-
2018
- 2018-08-01 CN CN201821233503.3U patent/CN208634140U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111069404A (en) * | 2020-01-06 | 2020-04-28 | 泰富特钢悬架(成都)有限公司 | Corner cut punching die for automobile manufacturing |
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