CN206785979U

CN206785979U - A kind of sealing structure of reduction box

Info

Publication number: CN206785979U
Application number: CN201720650811.5U
Authority: CN
Inventors: 邱连福
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-06-07
Filing date: 2017-06-07
Publication date: 2017-12-22
Anticipated expiration: 2027-06-07

Abstract

The utility model discloses a kind of sealing structure of reduction box,Including bearing block,Bearing cap on the bearing block,Bearing and axle in the bearing block,Wherein,Also include first seal,Second seal and outside end cap,The first seal is set between axle and the first endoporus of the bearing cap,The second seal is set between axle and the second endoporus of the bearing cap,The outside end cap is arranged on the right-hand member of the bearing cap,And keep out the right-hand member in the second seal,The first seal includes keeping out the boss in the left side of first endoporus and the embedded sealing transition sleeve that is connected on the boss,The second seal includes keeping out the outer seal ring on second bore area,Keep out the right side of first endoporus grease proofing sealing lip one and keep out the dust seal lip one in outside end cap inner surface.The utility model possesses the advantages of simple in construction, manufacturing cost is relatively low and sealing effectiveness is preferable.

Description

A kind of sealing structure of reduction box

Technical field

It the utility model is related to reduction box technical field of sealing technology, and in particular to a kind of sealing structure of reduction box.

Background technology

In currently used for mechanism of the passing power with motion, the application of reduction box is quite extensive, reduction box sealing Effect is bad, influences whether the quality and service life of reduction box, therefore reduction box needs to have the effect of sealing and dustproof.When subtracting Fast machine operates in that the dust such as coal yard, mining site are big, under the adverse circumstances more than impurity, and dust and impurity can enter oil sealing with lubricating grease Place, the oil sealing lost of life, shaft end permeability, oil leak situation often occur, and after long time running, oil mass is reduced, oil level declines, lubrication It is bad, bearing and gear wear, have influence on the normal use of reduction box.

Utility model content

The utility model is in view of the above-mentioned problems, offer one kind is simple in construction, manufacturing cost is relatively low and sealing effectiveness is preferable The sealing structure of reduction box.

The technical scheme in the invention for solving the above technical problem is：

A kind of sealing structure of reduction box, including bearing block, the bearing cap on the bearing block, installed in described Bearing and axle in bearing block, wherein, in addition to first seal, second seal and outside end cap, the first seal It is set between axle and the first endoporus of the bearing cap, the second seal is set in the second of axle and the bearing cap Between hole, the outside end cap is arranged on the right-hand member of the bearing cap and keeps out the right-hand member in the second seal, and described the One seal includes keeping out the boss in the left side of first endoporus and the embedded sealing transition that is connected on the boss Set, the second seal is including keeping out the outer seal ring on second bore area, keeping out in first endoporus The grease proofing sealing lip one of right side and keep out the dust seal lip one in outside end cap inner surface.

Further, the second seal also includes long-pending oil area and laying dust area；The long-pending oil area is arranged on described second The left side of seal, and between outer seal ring and grease proofing sealing lip one；The laying dust area is arranged on the second seal Right side, and between outer seal ring and dust seal lip one.

Further, the second seal also includes grease proofing sealing lip two and dust seal lip two, the anti-oil seal Lip two is contradicted on the periphery of axle, and is extended to the lower-left of axle；The dust seal lip two is contradicted on the periphery of axle, and to axle Bottom right extension.

Further, the inwall of the embedded sealing transition sleeve has several U-shaped oil grooves, and several U-shaped oil grooves are along institute The axial direction for stating embedded sealing transition sleeve is uniformly distributed.

Further, the inwall of the embedded sealing transition sleeve also has several semi-circular oil grooves, the semi-circular oil Circumference of the groove along the embedded sealing transition sleeve is uniformly distributed.

Further, the right flank of the boss is provided with several annular projections.

Further, the radial cross-sectional shape of the annular projection is arch.

Further, the annular projection number is 6.

Further, the outer surface of the outer seal ring is provided with helical raised.

Further, the helical raised is looped around on the periphery of the outer seal ring, and is sealed along described second Part it is axially extending.

The utility model has the advantages that：Simple in construction, sealing effectiveness is preferable, there is preferable economic benefit.

In addition to objects, features and advantages described above, the utility model also has other purposes, feature and excellent Point.Below with reference to figure, the utility model is described in further detail.

Brief description of the drawings

Form this specification a part, for further understand accompanying drawing of the present utility model show it is of the present utility model Preferred embodiment, and together with specification be used for illustrate principle of the present utility model.In the accompanying drawings：

Fig. 1 is cross-sectional view of the present utility model.

Fig. 2 is the cross-sectional view of first seal of the present utility model.

Fig. 3 is the cross-sectional structure schematic diagram of embedded sealing transition sleeve of the present utility model.

Fig. 4 is the cross-sectional view of second seal of the present utility model.

Wherein, in figure mark for：

Bearing block -1, bearing -2, axle -3, bearing cap -4, first seal -5, boss -51, annular projection - 511st, embed sealing transition sleeve -52, U-shaped oil groove -521, semi-circular oil groove -522, second seal -6, outer seal ring - 61st, helical raised -611, long-pending oil area -62, grease proofing sealing lip one -63, grease proofing sealing lip two -64, laying dust area -65, anti- Dirt sealing lip one -66, dust seal lip two -67, pad -7, outside end cap -8.

Embodiment

Embodiment of the present utility model is described in detail below in conjunction with accompanying drawing, but the utility model can be by right It is required that the multitude of different ways for limiting and covering is implemented.

Referring to figs. 1 to Fig. 4, a kind of sealing structure of reduction box as shown in Figure 1, including bearing block 1, installed in the axle Bearing cap 4 in bearing 1, bearing 2 and axle 3 in the bearing block 1, in addition to first seal 5, second seal 6 and outside end cap 8, the first seal 5 be set between axle 3 and the first endoporus of the bearing cap 4, it is described second sealing Part 6 is set between axle 3 and the second endoporus of the bearing cap 4, the outside end cap 8 be arranged on the bearing cap 4 right-hand member, And keep out the right-hand member in the second seal 6.

As shown in Fig. 2 the first seal 5 includes keeping out the boss 51 in the left side of first endoporus and connection Embedded sealing transition sleeve 52 on the boss 51, the right flank of the boss 51 are provided with 6 annular projections 511, the ring The radial cross-sectional shape of shape projection 511 is arch.

As shown in figure 4, the second seal 6 is including keeping out the outer seal ring 61 on second bore area, supporting Keep off the right side of first endoporus grease proofing sealing lip 1 and keep out the dust seal lip one in the outside inner surface of end cap 8 66, the outer surface of the outer seal ring 61 is provided with helical raised 611, and the helical raised 611 is looped around described outer close On the periphery of seal ring 61, and along the axially extending of the second seal 6.

The first seal 5 and the second seal 6 are provided simultaneously with the effect of sealing, simple in construction, manufacturing cost It is low, annular projection 511 and helical raised 611 are set, pressure can be concentrated on when locking target and reach close on protruding ring Effect is sealed, it is simple to operate without adjusting sealing ring form repeatedly.

The second seal 6 also includes long-pending oil area 62 and laying dust area 65；It is close that the long-pending oil area 62 is arranged on described second The left side of sealing 6, and between outer seal ring 61 and grease proofing sealing lip 1；It is close that the laying dust area 65 is arranged on described second The right side of sealing 6, and between outer seal ring 61 and dust seal lip 1, possess preferable dirt exclusion capabilities.

As shown in Figure 1 and Figure 4, the second seal 6 also includes grease proofing sealing lip 2 64 and dust seal lip 2 67, institute State grease proofing sealing lip 2 64 to contradict on the periphery of axle 3, and extend to the lower-left of axle 3；The dust seal lip 2 67 contradicts On the periphery of axle 3, and extend to the bottom right of axle 3, enhance neat sealing effectiveness.

As shown in Fig. 2 the inwall of the embedded sealing transition sleeve 52 has several U-shaped oil grooves 521, several U-shaped oil Axial direction of the groove 521 along the embedded sealing transition sleeve 52 is uniformly distributed.

As shown in figure 3, the inwall of the embedded sealing transition sleeve 52 also has several semi-circular oil grooves 522, it is described partly Circumference of the round oil groove 522 along the embedded sealing transition sleeve 52 is uniformly distributed, dependable performance, prolonged deceleration machine service life.

As shown in figure 1, being provided with pad 7 between the bearing block 1 and bearing cap 4, sealing effectiveness is further enhancing, no Increase manufacturing cost.

The first seal 5 is hydrogenation nitrile rubber sealing ring, has splendid anticorrosive, tear-proof and incompressible change Shape characteristic, resistance to ozone, resistance to sunlight, resistance to weather are preferable, have more preferably wear resistence than nitrile rubber.

Preferred embodiment of the present utility model is these are only, is not limited to the utility model, for this area Technical staff for, the utility model can have various modifications and variations.It is all within the spirit and principles of the utility model, Any modification, equivalent substitution and improvements made etc., should be included within the scope of protection of the utility model.

Claims

1. a kind of sealing structure of reduction box, including bearing block（1）, installed in the bearing block（1）On bearing cap（4）, peace Mounted in the bearing block（1）Interior bearing（2）And axle（3）, it is characterised in that also including first seal（5）, second seal （6）With outside end cap（8）, the first seal（5）It is set in axle（3）With the bearing cap（4）The first endoporus between, institute State second seal（6）It is set in axle（3）With the bearing cap（4）The second endoporus between, the outside end cap（8）It is arranged on The bearing cap（4）Right-hand member and keep out in the second seal（6）Right-hand member, the first seal（5）Including keeping out Boss in the left side of first endoporus（51）Be connected to the boss（51）On embedded sealing transition sleeve（52）, institute State second seal（6）Including keeping out the outer seal ring on second bore area（61）, keep out in first endoporus Right side grease proofing sealing lip one（63）With keep out in outside end cap（8）The dust seal lip one of inner surface（66）.

2. the sealing structure of reduction box according to claim 1, it is characterised in that the second seal（6）Also include Long-pending oil area（62）With laying dust area（65）；The long-pending oil area（62）It is arranged on the second seal（6）Left side, and positioned at outer close Seal ring（61）With grease proofing sealing lip one（63）Between；The laying dust area（65）It is arranged on the second seal（6）Right side, and Positioned at outer seal ring（61）With dust seal lip one（66）Between.

3. the sealing structure of reduction box according to claim 2, it is characterised in that the second seal（6）Also include Grease proofing sealing lip two（64）With dust seal lip two（67）, the grease proofing sealing lip two（64）Contradict in axle（3）Periphery on, and To axle（3）Lower-left extension；The dust seal lip two（67）Contradict in axle（3）Periphery on, and to axle（3）Bottom right prolong Stretch.

4. the sealing structure of reduction box according to claim 1, it is characterised in that the embedded sealing transition sleeve（52）'s Inwall has several U-shaped oil grooves（521）, several U-shaped oil grooves（521）Along the embedded sealing transition sleeve（52）Axially Even distribution.

5. the sealing structure of reduction box according to claim 4, it is characterised in that the embedded sealing transition sleeve（52）'s Inwall also has several semi-circular oil grooves（522）, the semi-circular oil groove（522）Along the embedded sealing transition sleeve（52）'s Circumferentially it is uniformly distributed.

6. the sealing structure of reduction box according to claim 4, it is characterised in that the boss（51）Right flank be provided with Several annular projections（511）.

7. the sealing structure of reduction box according to claim 6, it is characterised in that the annular projection（511）Radial direction Cross sectional shape is arch.

8. the sealing structure of reduction box according to claim 7, it is characterised in that the annular projection（511）Number is 6 It is individual.

9. the sealing structure of reduction box according to claim 1, it is characterised in that the outer seal ring（61）Outer surface It is provided with helical raised（611）.

10. the sealing structure of reduction box according to claim 9, it is characterised in that the helical raised（611）It surround In the outer seal ring（61）Periphery on, and along the second seal（6）It is axially extending.