CN209224856U - A kind of Cam rest with bearing and positioning pin - Google Patents
A kind of Cam rest with bearing and positioning pin Download PDFInfo
- Publication number
- CN209224856U CN209224856U CN201821769214.5U CN201821769214U CN209224856U CN 209224856 U CN209224856 U CN 209224856U CN 201821769214 U CN201821769214 U CN 201821769214U CN 209224856 U CN209224856 U CN 209224856U
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- cam rest
- cam
- hole
- bearing
- oil
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Abstract
The utility model relates to a kind of Cam rest with bearing and positioning pin, is made of Cam rest assembly, straight pin and camshaft；The Cam rest assembly is fixed with straight pin, and camshaft passes through the circular hole of back-plate and the bush hole of Cam rest assembly.A kind of Cam rest with bearing and positioning pin of the utility model, Cam rest assembly use globular lining, avoid camshaft when overloaded and bushing stuck, promote braking reliability；Cam rest is connect using two bolts and a straight pin with axle case assy, and space layout is more reasonable, reduces the weight of Cam rest.
Description
Technical field
The utility model belongs to automobile drive axle technical field, and in particular to a kind of cam branch with bearing and positioning pin
Frame.
Background technique
In domestic drive axle, there are many structure types for Cam rest, and one is be bolted to be fixed on back-plate
Integrated support, since camshaft is integrally all wrapped up by Cam rest, this construction weight is larger；One is be bolted fixation
Separating stent-graft on to axle case assy, and cooperated using the slide bushing of circular ring shape and camshaft, this structure is in drive axle
When carrying is compared with big load, since axle case bending deforms, it is easy to produce camshaft and the stuck situation of slide bushing, influences braking
Energy.
Summary of the invention
The purpose of this utility model is that integral cam weight support frame is excessive in above-mentioned existing drive axle, seperated
The low deficiency of the braking reliability of bracket provides a kind of Cam rest with bearing and positioning pin, reduces Cam rest weight
Amount, improves braking reliability.
The purpose of this utility model is achieved through the following technical solutions:
A kind of Cam rest with bearing and positioning pin, is made of Cam rest assembly 2, straight pin 4 and camshaft 5；
The Cam rest assembly 2 is fixed with straight pin 4, and camshaft 5 passes through the circular hole and Cam rest assembly 2 of back-plate 10
Bush hole.
Further, the Cam rest assembly 2 is made of Cam rest 6 and globular lining 8, the convex ball of globular lining 8
Face and the concave spherical surface of Cam rest 6 are fixed, and the oil hole of globular lining 8 is within the scope of the oil duct envelope of Cam rest 6；Cam branch
The cam shaft mounting hole both ends of frame 6 are respectively provided with oil sealing 7 and oil sealing 9, the outer end face outer end face pair with Cam rest 6 respectively
Together.The Cam rest 6 is connect by two bolts and a straight pin 4 with axle case assy 1.
Further, the Cam rest 6 is set there are two axial symmetry bolt hole, and a straight pin is equipped on the axis of symmetry
Hole, the middle part of cam shaft mounting hole are concave spherical surface, and the center of spherical surface is equipped with ring shaped oil passage, has on ring shaped oil passage and be equipped with for connecting
The two sides in the taper thread hole of oil nozzle, cam shaft mounting hole use shoulder hole structure, for installing oil sealing 7；Cam rest 6 it is another
End uses two borehole structures, for connecting gas chamber.
Further, the globular lining 8 is ring structure, and outer annular surface is convex spherical, and internal spherical surface is cylinder, ring
There are two 180 ° of symmetrical round oil holes in the middle part of shape, the middle part of internal spherical surface is equipped with a ring shaped oil passage.
Compared with prior art, the utility model has the beneficial effects that: the utility model one kind has bearing and positioning
The Cam rest of pin, Cam rest assembly use globular lining, avoid camshaft when overloaded and bushing stuck, and promoting braking can
By property；Cam rest is connect using two bolts and a straight pin with axle case assy, and space layout is more reasonable, reduces cam
The weight of bracket.
Detailed description of the invention
Fig. 1 and Fig. 2 is that a kind of Cam rest with bearing and positioning pin of the utility model is regarded applied to driving axis
Figure；
Fig. 3 is a kind of Cam rest assembly view of Cam rest with bearing and positioning pin of the utility model；
Fig. 4 a is a kind of Cam rest main view of the Cam rest with bearing and positioning pin of the utility model；
Fig. 4 b is a kind of Cam rest top view of the Cam rest with bearing and positioning pin of the utility model；
Fig. 5 is a kind of globular lining view of the Cam rest with bearing and positioning pin of the utility model；
In figure: 1. axle case assy, 2. Cam rest assembly, 3. bolt, 4. straight pin, 5. camshaft, 6. Cam rest 7.
8. globular lining of oil sealing, 9. oil sealing, 10. back-plate.
Specific embodiment
The utility model is further elaborated with reference to the accompanying drawing.
As Figure 1-Figure 2, a kind of Cam rest with bearing and positioning pin is applied to driving axis.Straight pin 4
It is packed into the blind round hole of axle case assy 1；The blind round hole of Cam rest assembly 2 is packed into straight pin 4, and two through hole and axle case assy
1 threaded hole alignment；Camshaft 5 passes through the circular hole of back-plate 10, and passes through the bush hole of Cam rest assembly 2；Tighten two
A bolt 3 is fixed to Cam rest assembly 2 on axle case assy 1.
As shown in figure 3, the convex spherical of globular lining 8 is fitted into the concave spherical surface of Cam rest 6, the oil hole of globular lining 8
Within the scope of the oil duct envelope of Cam rest 6；The cam shaft mounting hole both ends of Cam rest 6 are respectively charged into oil sealing 7 and oil sealing 9,
Its outer end face is aligned with the outer end face of Cam rest 6 respectively.
As shown in Figs. 4 a-b, Cam rest 6 uses two axial symmetry bolts hole；A circle is used on the axis of symmetry
Column pin hole；The middle part of cam shaft mounting hole uses concave spherical surface structure, and there is ring shaped oil passage at the center of spherical surface, there is cone spiral shell on ring shaped oil passage
Pit, for connecting oil nozzle；The two sides of cam shaft mounting hole use shoulder hole structure, for installing oil sealing 7；Cam rest 6
The other end uses two borehole structures, for connecting gas chamber.
As shown in figure 5, globular lining 8 uses ring structure, outer annular surface is convex spherical, and internal spherical surface is with cylindrical；
There is a ring shaped oil passage at annular middle part in the middle part of internal spherical surface there are two 180 ° of symmetrical round oil holes.
Claims (3)
1. a kind of Cam rest with bearing and positioning pin, it is characterised in that: by Cam rest assembly (2), straight pin (4) and
Camshaft (5) is constituted；The Cam rest assembly (2) and straight pin (4) are fixed, and camshaft (5) passes through back-plate (10)
The bush hole of circular hole and Cam rest assembly (2)；
The Cam rest assembly (2) is made of Cam rest (6) and globular lining (8), the convex spherical of globular lining (8) with it is convex
The concave spherical surface of wheel support (6) is fixed, and the oil hole of globular lining (8) is within the scope of the oil duct envelope of Cam rest (6)；Cam branch
The cam shaft mounting hole both ends of frame (6) are respectively provided with oil sealing (7) and oil sealing (9), and outer end face is outer with Cam rest (6) respectively
End face alignment；The Cam rest (6) is connect by two bolts and a straight pin (4) with axle case assy (1).
2. a kind of Cam rest with bearing and positioning pin according to claim 1, it is characterised in that: the cam branch
Frame (6) is set there are two axial symmetry bolt hole, and a cylinder pin hole is equipped on the axis of symmetry, and the middle part of cam shaft mounting hole is recessed
Spherical surface, the center of spherical surface are equipped with ring shaped oil passage, there is the taper thread hole being equipped with for connecting oil nozzle, camshaft installation on ring shaped oil passage
The two sides in hole are equipped with the stepped hole for installing oil sealing (7), and the other end of Cam rest (6) is equipped with two for connecting gas chamber
Circular hole.
3. a kind of Cam rest with bearing and positioning pin according to claim 1, it is characterised in that: the globe lining
Covering (8) is ring structure, and outer annular surface is convex spherical, and internal spherical surface is cylinder, and there are two 180 ° of symmetrical circles at annular middle part
The middle part of shape oil hole, internal spherical surface is equipped with a ring shaped oil passage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821769214.5U CN209224856U (en) | 2018-10-30 | 2018-10-30 | A kind of Cam rest with bearing and positioning pin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821769214.5U CN209224856U (en) | 2018-10-30 | 2018-10-30 | A kind of Cam rest with bearing and positioning pin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209224856U true CN209224856U (en) | 2019-08-09 |
Family
ID=67501171
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821769214.5U Active CN209224856U (en) | 2018-10-30 | 2018-10-30 | A kind of Cam rest with bearing and positioning pin |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209224856U (en) |
-
2018
- 2018-10-30 CN CN201821769214.5U patent/CN209224856U/en active Active
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