CN207673866U - A kind of inner guide pulley sealing mechanism - Google Patents
A kind of inner guide pulley sealing mechanism Download PDFInfo
- Publication number
- CN207673866U CN207673866U CN201721926112.5U CN201721926112U CN207673866U CN 207673866 U CN207673866 U CN 207673866U CN 201721926112 U CN201721926112 U CN 201721926112U CN 207673866 U CN207673866 U CN 207673866U
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- ring
- guide pulley
- inner guide
- stationary ring
- stationary
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Abstract
The utility model discloses a kind of inner guide pulley sealing mechanisms,Including housing,Sealing device and inner guide pulley axis,Sealing device further includes trim ring,Stationary ring and rotating ring,Trim ring is fixedly connected on housing and is sheathed on inner guide pulley axis outer surface,Stationary ring sliding is connected to housing and is sheathed on inner guide pulley axis outer surface,Multiple accommodating chambers are further opened on stationary ring,Accommodating chamber is set to stationary ring side close with trim ring,Compression spring is additionally provided in accommodating chamber,Compression spring one end is fixedly connected on stationary ring and its other end is fixedly connected on trim ring,Rotating ring is fixedly connected on inner guide pulley axis,The stationary ring other side is abutted against with rotating ring,When use,Trim ring is fixed,Stationary ring opposite can be moved axially with trim ring,Rotating ring is relative to stationary ring radial rotating,When stationary ring and rotating ring contact surface generate mutually abrasion and generate gap,Compression spring can push stationary ring to be axially moveable and offset gap,So as to make stationary ring and rotating ring contact surface be constantly in sealing state,It is simple in structure,Sealing effect is good.
Description
Technical field
The utility model is related to arrive rotatory sealing field, more particularly to a kind of inner guide pulley sealing mechanism.
Background technology
Rotatory sealing belongs to one kind of dynamic sealing, and rotatory sealing is by generally by the rubber of a slip ring and an offer elastic force
Circle composition, for being sealed with the bar of rotation or pendulum motion, axis, pin, rotary joint etc., engineering machinery, building machinery and
All there is revolving hydraulic rotation in each industrial circle such as automobile equipment.It is that one kind can bear pressure at both sides or alternating pressure is made
The rotating seal ring of two-way function.
The Chinese patent that existing Authorization Notice No. is CN206555445U, it discloses a kind of rotating seal components, including solid
Determine supporting sleeve, rotatory sealing set, the rotatory sealing set is sticked to form up and down relatively by the first sealing ring and the second sealing ring, the
One sealing ring and the second seal ring set are mounted in fixed supporting sleeve, and the first sealing ring, the second sealing ring and fixed supporting sleeve are coaxial
Setting, by the redesign to rotating seal component structure, the rotatory sealing set inside traditional rotating seal component from
Single sealing ring fission is set as two packing ring combinations, and rotatory sealing, which covers, uses polyurethane material, and rotating seal ring
Concave-convex uniform wave groove is circumferentially added on sealing lip, can store grease or lubricating oil in wave groove, sealing lip connects with rotary shaft
When touching, friction coefficient can be reduced, realizes low friction operating, sealing performance is improved and extends service life, by structure
It redesigns, the rotating seal ring service life of the utility model is generally in 2 years or more long.
But a kind of above-mentioned rotating seal component, when due to work, the first sealing ring and the second sealing ring relatively rotate, then
First sealing ring and the second sealing loop interface will produce opposite abrasion, but nothing after the first sealing ring and the second seal wears
Method compensates, and is continuing with, can influence sealing effect.
Utility model content
The purpose of this utility model is to provide a kind of inner guide pulley sealing mechanism, can be mended automatically after having seal wears
The advantages of repaying, not influencing leakproofness.
The above-mentioned technical purpose of the utility model technical scheme is that：
A kind of inner guide pulley sealing mechanism, including housing, sealing device and inner guide pulley axis, sealing device further include trim ring,
Stationary ring and rotating ring, trim ring are fixedly connected on housing and are sheathed on inner guide pulley axis outer surface, and stationary ring sliding is connected to housing and set
Set on inner guide pulley axis outer surface, multiple accommodating chambers are further opened on stationary ring, accommodating chamber is set to stationary ring side close with trim ring, holds
Intracavitary of receiving is additionally provided with compression spring, and compression spring one end is fixedly connected on stationary ring and its other end is fixedly connected on trim ring, and rotating ring is fixedly connected
In inner guide pulley axis, the stationary ring other side is abutted against with rotating ring.
By using said program, in use, trim ring is fixed, stationary ring opposite can be moved axially with trim ring, rotating ring phase
For stationary ring radial rotating, when generating gap when stationary ring and rotating ring contact surface generation mutually abrasion, compression spring can push stationary ring
It is axially moveable and offsets gap, simple in structure so as to make stationary ring and rotating ring contact surface be constantly in sealing state, sealing effect
Fruit is good.
Preferably, being further opened with first annular slot at the stationary ring outer circle, it is close to be additionally provided with first in the first annular slot
Seal.
By using said program, it is provided with the first sealing ring at the outer circle of stationary ring, can ensure the close of housing and stationary ring
Feng Xing, simple in structure, good airproof performance.
Preferably, the stationary ring inner circle is also provided with the second annular groove, the second sealing ring is also equipped in the second annular groove.
By using said program, be equipped with the second sealing ring in stationary ring, when work, when stationary ring in rotating ring due to undesirably falling off
When fitting, stationary ring can be sealed by the second sealing ring, ensure the leakproofness of workpiece.
Preferably, being further opened with guide groove on the stationary ring, the housing is fixedly provided with lower end and is inserted in guide groove
Positioning pin.
By using said program, guide groove is opened up on stationary ring, positioning pin lower end is inserted in sliding slot on outer set, can be with
Prevent stationary ring from being rotated relative to housing, it is simple in structure.
Preferably, it is rectangular annular lug that the stationary ring is fixedly provided with cross section on rotating ring side, it is described dynamic
It is rectangular annular groove that ring is further opened with the cross section coordinated with the annular lug on stationary ring side.
By using said program, it is installed with annular lug on stationary ring, annular groove is offered on rotating ring, can enhance quiet
The leakproofness of ring and rotating ring, and when rotating ring is opposite generate slight axial vibrations with stationary ring when, by the annular lug of setting with
Annular groove can ensure the leakproofness of rotating ring and stationary ring.
Preferably, trim ring is additionally provided with the lip-type packing of rubber material far from stationary ring side, lip-shaped sealed ring lip is inside
It is installed in housing, and lip-shaped sealed ring inner ring is connected to inner guide pulley axis.
By using said program, lip-shaped sealed ring is installed in housing, and inner ring is connected to inner guide pulley axis outer surface, can
To further strengthen the leakproofness between housing and inner guide pulley axis.
Preferably, being also equipped with support frame in the lip-type packing.
By using said program, support frame is installed in lip-shaped sealed ring, it can be by support frame to lip packing
Circle is played a supporting role, moreover it is possible to ensure that lip-shaped sealed ring circle inner ring is tightly attached to inner guide pulley axis outer surface.
Preferably, the holding screw being also threaded on the rotating ring, inner guide pulley axis is further opened with for plugging tightening
The location hole of screw.
By using said program, holding screw is set on rotating ring, it can be further solid by the holding screw of setting
Determine the relative position of rotating ring and inner guide pulley axis, ensures that rotating ring can be rotated synchronously with inner guide pulley axis.
In conclusion the utility model has the advantages that：
1. in use, trim ring is fixed, stationary ring opposite can be moved axially with trim ring, and rotating ring radially turns relative to stationary ring
Dynamic, when generating gap when stationary ring and rotating ring contact surface generation mutually abrasion, compression spring can push stationary ring to be axially moveable counteracting
Gap, so as to make stationary ring and rotating ring contact surface be constantly in sealing state, simple in structure, sealing effect is good；
2. opening up guide groove on stationary ring, positioning pin lower end is inserted in sliding slot on outer set, can prevent stationary ring relative to
Housing rotates, simple in structure.
3. being installed with annular lug on stationary ring, annular groove is offered on rotating ring, can enhance the sealing of stationary ring and rotating ring
Property, and when rotating ring generates slight axial vibrations with stationary ring relatively, can be protected by the annular lug and annular groove of setting
Demonstrate,prove the leakproofness of rotating ring and stationary ring.
Description of the drawings
Fig. 1 is the exploded perspective view that inner guide pulley sealing mechanism is highlighted in embodiment；
Fig. 2 is the diagrammatic cross-section that inner guide pulley sealing mechanism is highlighted in embodiment；
Fig. 3 is the diagrammatic cross-section that lip-type seal coil structures are highlighted in embodiment；
Fig. 4 is the diagrammatic cross-section that static-ring structure is highlighted in embodiment；
Fig. 5 is the portions A enlarged drawing in Fig. 4；
Fig. 6 is the diagrammatic cross-section that movable ring structure is highlighted in embodiment.
In figure, 1, housing；11, positioning pin；2, sealing device；21, lip-shaped sealed ring；211, support frame；22, trim ring；
23, stationary ring；231, accommodating chamber；232, compression spring；233, guide groove；234, first annular slot；2341, the first sealing ring；235,
Second ring slot；2351, the second sealing ring；236, annular lug；24, rotating ring；241, annular groove；242, holding screw；3, interior
Guide wheel shaft；31, location hole.
Specific implementation mode
The utility model is described in further detail below in conjunction with attached drawing.The identical attached drawing of wherein identical parts
Label indicates.It should be noted that word "front", "rear" used in the following description, "left", "right", "up" and "down" refer to
It is the direction in attached drawing, word " bottom surface " and " top surface ", "inner" and "outside" are referred respectively to towards or away from particular elements geometry
The direction at center.
Embodiment:A kind of inner guide pulley sealing mechanism, it is close in conjunction with Fig. 1, including housing 1, sealing device 2 and inner guide pulley axis 3
Seal apparatus 2 includes lip-type packing 21, trim ring 22, stationary ring 23 and rotating ring 24.
In conjunction with Fig. 2 and Fig. 3, lip-type packing 21 is made of rubber, and support frame is also equipped in lip-shaped sealed ring 21
211, can be played a supporting role to lip-shaped sealed ring 21 by the support frame 211 of setting, and can make lip-type packing 21 with
Inner guide pulley axis 3 seal it is closer, in use, 21 lip of lip-shaped sealed ring is inwardly fixedly installed in housing 1, and lip-shaped sealed ring
21 inner ring is rotationally connected with 3 outer surface of inner guide pulley axis.
Trim ring 22, which is adopted, to be made of a steel, in use, 22 end face of trim ring is connected to the lip side of lip-type packing 21, and is pressed
The outer ring of circle 22 is fixedly connected on the inner ring of housing 1.
In conjunction with Fig. 2 and Fig. 4, stationary ring 23 is made of filled polytetrafluoroethylene, and stationary ring 23 is further opened with multiple accommodating chambers
231, accommodating chamber 231 is set to stationary ring 23 and leans on nearside with trim ring 22, and compression spring 232, compression spring 232 1 are also equipped in accommodating chamber 231
End is fixedly connected on trim ring 22 and its other end is fixedly connected on stationary ring 23, in use, compression spring 232 can push stationary ring 23 along axis
And tend to the direction movement far from trim ring 22.Guide groove 233 is further opened on stationary ring 23, housing 1 is also fixedly connected with lower end and inserts
Positioning pin 11 set on 233 upper surface of guide groove can prevent stationary ring 23 relative to outer by positioning pin 11 and the cooperation of guide groove 233
Set 1 produces relative rotation, and stationary ring 23 is further opened with first annular slot 234（With reference to figure 5）, is equipped in first annular slot 234
One sealing ring 2341 is further opened with the second annular groove 235 at 3 inner ring of stationary ring（With reference to figure 5）, also install in the second annular groove 235
There is the second sealing ring 2351, in use, stationary ring 23 is installed on trim ring 22 in housing 1 together, and 23 outer ring of stationary ring axially slides
It is connected to 1 inner ring of housing, also axially sliding is connected to 3 outer ring of inner guide pulley axis to 23 inner ring of stationary ring, passes through the first sealing ring of setting
2341 and second sealing ring 2351 can also further reinforce the leakproofness of stationary ring 23 and housing 1 and inner guide pulley axis 3.
With reference to figure 4 and Fig. 6, rotating ring 24, which is adopted, to be made of a steel, and is connected to the other side of stationary ring 23, and rotating ring 24 is close to stationary ring 23
Side is further opened with annular groove 241, and stationary ring 23 is fixedly provided with the convex annular coordinated with annular groove 241 close to 24 side of rotating ring
Block 236, annular groove 241 and the cross section of annular lug 236 are rectangle.When work, rotating ring 24 is revolved relative to stationary ring 23
When turning, cooperated by the annular groove 241 and annular lug 236 of setting, rotating ring 24 and the sealing of stationary ring 23 are even closer.
A threaded hole 242 is also provided on rotating ring 24,242 internal thread of threaded hole is connected with holding screw 243, inner guide pulley axis 3
On be further opened with the location hole 31 coordinated in holding screw 243（With reference to figure 2）, when work, by tighten holding screw 243 make it is quiet
Determine 243 lower end of screw and is inserted in the relative position that can further fix rotating ring 24 and inner guide pulley axis 3 in location hole 31, to
Rotating ring 24 is set to rotate and rotate with inner guide pulley axis 3.
The course of work：In use, lip-shaped sealed ring 21, trim ring 22 and stationary ring 23 are installed on housing 1 and inner guide pulley successively
Between axis 3, rotating ring 24 is installed on inner guide pulley axis 3 and one side is connected to stationary ring 23, when work, the rotation of inner guide pulley axis 23 to
The rotating ring 24 for being connected to stationary ring 23 is driven to rotate, when stationary ring 23 generates abrasion due to working long hours, compression spring 232 can push away
Dynamic and static ring 23 moves, and makes up abrasion automatically.
This specific embodiment is only the explanation to the utility model, is not limitations of the present invention, ability
Field technique personnel can as needed make the present embodiment the modification of not creative contribution after reading this specification, but
As long as all being protected by Patent Law in the right of the utility model.
Claims (8)
1. a kind of inner guide pulley sealing mechanism, including housing (1), sealing device (2) and inner guide pulley axis (3), it is characterised in that：It is close
Seal apparatus (2) further includes trim ring (22), stationary ring (23) and rotating ring (24), and trim ring (22) is fixedly connected on housing (1) and is arranged
In inner guide pulley axis (3) outer surface, stationary ring (23) sliding is connected to housing (1) and is sheathed on inner guide pulley axis (3) outer surface, stationary ring
(23) multiple accommodating chambers (231) are further opened on, accommodating chamber (231) is set to stationary ring (23) and the close side of trim ring (22), holds
Chamber (231) of receiving is interior to be additionally provided with compression spring (232), and compression spring (232) one end is fixedly connected on stationary ring (23) and its other end is fixedly connected
In trim ring (22), rotating ring (24) is fixedly connected on inner guide pulley axis (3), and stationary ring (23) other side is abutted against with rotating ring (24).
2. a kind of inner guide pulley sealing mechanism according to claim 1, it is characterised in that：It is also opened at stationary ring (23) outer circle
Equipped with first annular slot (234), the first sealing ring (2341) is additionally provided in the first annular slot (234).
3. a kind of inner guide pulley sealing mechanism according to claim 1, it is characterised in that：Stationary ring (23) inner circle is also opened
There is the second annular groove (235), the second sealing ring (2351) is also equipped in the second annular groove (235).
4. a kind of inner guide pulley sealing mechanism according to claim 1, it is characterised in that：The stationary ring (23) is close to rotating ring
(24) it is rectangular annular lug (236) that cross section is fixedly provided on side, and the rotating ring (24) is close to stationary ring (23) side
On to be further opened with the cross section coordinated with the annular lug (236) be rectangular annular groove (241).
5. a kind of inner guide pulley sealing mechanism according to claim 1, it is characterised in that：Trim ring (22) is far from stationary ring (23) one
Side is additionally provided with the lip-type packing of rubber material, and lip-shaped sealed ring (21) lip is inwardly installed in housing (1), and lip-type seal
Circle (21) inner ring is connected to inner guide pulley axis (3).
6. a kind of inner guide pulley sealing mechanism according to claim 5, it is characterised in that：It is also installed in the lip-type packing
There is support frame (211).
7. a kind of inner guide pulley sealing mechanism according to claim 1, it is characterised in that：Screw thread company is gone back on the rotating ring (24)
The holding screw (242) being connected to, inner guide pulley axis (3) are further opened with the location hole (31) for plugging holding screw (242).
8. a kind of inner guide pulley sealing mechanism according to claim 1, it is characterised in that：It is further opened on the stationary ring (23)
Guide groove (233), the housing (1) are fixedly provided with the positioning pin (11) that lower end is inserted in guide groove (233).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721926112.5U CN207673866U (en) | 2017-12-30 | 2017-12-30 | A kind of inner guide pulley sealing mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721926112.5U CN207673866U (en) | 2017-12-30 | 2017-12-30 | A kind of inner guide pulley sealing mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207673866U true CN207673866U (en) | 2018-07-31 |
Family
ID=62972100
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721926112.5U Active CN207673866U (en) | 2017-12-30 | 2017-12-30 | A kind of inner guide pulley sealing mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207673866U (en) |
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2017
- 2017-12-30 CN CN201721926112.5U patent/CN207673866U/en active Active
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