CN208997178U - The fluid power static pressure thrust bearing of axial kick for flat double reduction gearbox output shafts - Google Patents
The fluid power static pressure thrust bearing of axial kick for flat double reduction gearbox output shafts Download PDFInfo
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- CN208997178U CN208997178U CN201821612065.1U CN201821612065U CN208997178U CN 208997178 U CN208997178 U CN 208997178U CN 201821612065 U CN201821612065 U CN 201821612065U CN 208997178 U CN208997178 U CN 208997178U
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- flat double
- reduction gearbox
- housing
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Abstract
The utility model discloses the fluid power static pressure thrust bearings of the axial kick for flat double reduction gearbox output shafts, include bearing holder (housing, cover), brearing bore there are two being set in bearing holder (housing, cover), a bearing inner-core is correspondingly provided in each brearing bore, the corresponding output axis connection with flat double reduction gearboxes in each bearing inner-core one end, corresponding stretch of the other end are located in a brearing bore；Be further fixed on a bearing jacket gland far from one end of flat double two output shaft of reduction gearbox in bearing holder (housing, cover), bearing jacket gland and being arranged in be additionally provided between each bearing inner-core in bearing holder (housing, cover) one for be filled with hydraulic oil closed cavity.The utility model mainly uses hydraulic technique principle, the axial kick that flat double reduction gearbox output shafts are carried by sealing the pressure of liquid chamber realizes the maximization design of thrust pressure under the conditions of twin shaft is arranged side by side in narrow space, simple with structure, it is reliable for operation, the advantages that long service life.
Description
Technical field
The utility model relates to the bearing support field of parallel double-screw reduction gearbox, particularly relates to for flat double decelerations
The fluid power static pressure thrust bearing of the axial kick of case output shaft.
Background technique
Flat double reduction gearboxes in the market due to transmitting torque is big and two axis centers away from small, and the axial back seat that output shaft is born
Power is very big, can not find suitable thrust bearing to bear axial force.Current primary solutions be using tandem bearing, but
It is under output shaft stress complex situations, the additional bending moment as caused by radial force easily leads to tandem bearing core shaft front end and twists into two parts,
After first row bearing is damaged, it may appear that it continuous phenomena such as failing, is integrally unable to operate normally or fails so as to cause reduction gearbox,
The reliability of influence system and service life.
In view of the above-mentioned problems, therefore the application provides a kind of fluid power static pressure thrust bearing that can be used in bearing axial kick
Component breaches the concept of traditional bearing structure, realizes the innovation of principle of products level, exports for parallel double-shaft reduction gearbox
The axial kick that bearing is received opens a new structure type.
Utility model content
The purpose of this utility model is to provide a kind of fluid power of axial kick for flat double reduction gearbox output shafts is quiet
Thrust bearing is pressed, to solve the problems in background technique.
To achieve the above object, the technical solution that the utility model is taken are as follows: the axial direction for flat double reduction gearbox output shafts
The fluid power static pressure thrust bearing of kick includes bearing holder (housing, cover), is set in the bearing holder (housing, cover) there are two brearing bore, each described
A bearing inner-core, the corresponding output with flat double reduction gearboxes in each described bearing inner-core one end are correspondingly provided in brearing bore
Axis connection, corresponding stretch of the other end are located in the brearing bore；
It is further fixed on a bearing jacket gland far from one end of two output shaft of flat double reduction gearboxes in the bearing holder (housing, cover), described
Bearing jacket gland and it is arranged between each bearing inner-core in bearing holder (housing, cover) and is additionally provided with a closed cavity, each described close
It closes in cavity filled with hydraulic oil.
Further, a circle circumferential slot is equipped on the outer circle wall of each bearing inner-core；
Several damping holes are equipped with towards closed cavity one end in each bearing inner-core；
Each described damping hole one end is connected to corresponding closed cavity, and the other end connects with corresponding circumferential slot
It is logical.
Further, a circle sealing ring is equipped between each bearing inner-core and corresponding brearing bore.
The utility model provides the work of the fluid power static pressure thrust bearing of the axial kick for flat double reduction gearbox output shafts
Make principle are as follows:
When work, axial kick suffered by flat double reduction gearbox output shafts is passed through into the two bearings that are placed in bearing holder (housing, cover) inner hole
Force is transmitted to bearing holder (housing, cover)s and bearing gland to be formed by the hydraulic oil being full of in closed oil pocket for inner core, due to closed oil
The closed and oily Incoercibility of chamber, bearing gland can be finally transmitted to by putting down axial kick suffered by double reduction gearbox output shafts
On, and then realize the maximization of thrust pressure under the conditions of twin shaft is arranged side by side in narrow space, and meet flat double extruder height and turn round
The job requirement of the big back pressure of square.
In addition, being rotated since two bearings inner core can rotate within bearing holder (housing, cover) with the output shaft of flat double reduction gearboxes
Engineering in, when flat double reduction gearbox output shaft circumference discontinuity equalization, using the damping hole and circumferential direction on bearing inner-core
Slot buffering discharges its out-of-balance force, and then guarantees bearing inner-core normal rotation in a sealed meter environment.
Compared with prior art, the advantages of the utility model and beneficial effect is: mainly using hydraulic technique principle, benefit
The axial kick of flat double reduction gearbox output shafts is carried with the pressure of sealing liquid chamber, and then is realized double in narrow space
The maximization of thrust pressure under the conditions of axis is arranged side by side designs, to meet the job requirement of the big back pressure of flat double extruder high torques；This
The advantages that utility model has structure simple, reliable for operation, long service life.
Detailed description of the invention
Fig. 1 is that the fluid power static pressure thrust bearing of this practical axial kick for flat double reduction gearbox output shafts is not filled by liquid
The structural schematic diagram of pressure oil；
Fig. 2 is that the fluid power static pressure thrust bearing of this practical axial kick for flat double reduction gearbox output shafts is filled with liquid
The structural schematic diagram of pressure oil；
In figure: 1, bearing holder (housing, cover)；2, brearing bore；3, bearing inner-core；3.1, circumferential slot；3.2, damping hole；4, output shaft；
5, bearing jacket gland；6, closed cavity；7, hydraulic oil；8, sealing ring.
Specific embodiment
To be easy to understand the technical means, creative features, achievement of purpose, and effectiveness of the utility model, below
In conjunction with the drawings and specific embodiments, it is further described how the utility model is implemented.
As depicted in figs. 1 and 2, the fluid power of the axial kick provided by the utility model for flat double reduction gearbox output shafts
Static pressure thrust bearing includes bearing holder (housing, cover) 1, is set in bearing holder (housing, cover) 1 there are two brearing bore 2, corresponding in each brearing bore 2
Equipped with a bearing inner-core 3, the corresponding output shaft 4 with flat double reduction gearboxes in each 3 one end of bearing inner-core is connect, the other end pair
It should stretch and be located in a brearing bore 2；An axis is further fixed on far from one end of two output shaft 4 of flat double reduction gearboxes in bearing holder (housing, cover) 1
Bearing sleeve gland 5 in bearing jacket gland 5 and is arranged between each bearing inner-core 3 in bearing holder (housing, cover) 1 and is additionally provided with a confined air
Chamber 6 is filled with hydraulic oil 7 in each closed cavity 6.
In order to balance the force of periphery of two output shaft 4 of double reduction gearboxes, it is equipped on the outer circle wall of each bearing inner-core 3
One circle circumferential slot 3.1；Several damping holes 3.2 are equipped with towards 6 one end of closed cavity in each bearing inner-core 3；Each resistance
3.2 one end of Buddhist nun's aperture is connected to corresponding closed cavity 6, and the other end is connected to corresponding circumferential slot 3.1.
To prevent hydraulic oil 7 in closed cavity 6 from leaking, it is all provided between each bearing inner-core 3 and corresponding brearing bore 2
There is a circle sealing ring 8.
The utility model provides the work of the fluid power static pressure thrust bearing of the axial kick for flat double reduction gearbox output shafts
Make principle are as follows:
When work, by axial kick suffered by flat double reduction gearbox output shafts 4 by being placed in the brearing bore 2 of bearing holder (housing, cover) 1
In two bearings inner core 3 force is transmitted to bearing holder (housing, cover) 1 and bearing gland 5 be formed by closed oil pocket 6 be full of it is hydraulic
On oil 7, due to the closed and oily Incoercibility of closed oil pocket 6, axial kick suffered by double reduction gearbox output shafts 4 is put down most
After can be transmitted on bearing gland 5, and then realize the maximization of thrust pressure under the conditions of twin shaft is arranged side by side in narrow space,
And meet the job requirement of the big back pressure of flat double extruder high torques.
In addition, being revolved since two bearings inner core 3 can rotate within bearing holder (housing, cover) 1 with the output shaft 4 of flat double reduction gearboxes
In the engineering turned, when flat double 4 circumference discontinuity equalizations of reduction gearbox output shaft, using the damping hole 3.2 on bearing inner-core 3
It buffered with circumferential slot 3.1, discharge its out-of-balance force, and then guarantee the normal rotation in a sealed meter environment of bearing inner-core 3.
Finally illustrate, the above description is only the embodiments of the present invention, is not intended to limit the patent of the utility model
Range, equivalent structure or equivalent flow shift made by using the description of the utility model and the drawings, or directly or
Other related technical areas are used in indirectly, are also included in the patent protection scope of the utility model.
Claims (3)
1. the fluid power static pressure thrust bearing of the axial kick for flat double reduction gearbox output shafts, includes bearing holder (housing, cover) (1), feature
It is: is set in the bearing holder (housing, cover) (1) there are two brearing bore (2), be correspondingly provided with one in each brearing bore (2)
Bearing inner-core (3), the corresponding output shaft (4) with flat double reduction gearboxes in each described bearing inner-core (3) one end connect, the other end
Corresponding stretch is located in the brearing bore (2)；
It is further fixed on a bearing jacket gland (5) far from one end of flat double two output shafts of reduction gearbox (4) in the bearing holder (housing, cover) (1),
A confined air is additionally provided between each bearing inner-core (3) in bearing holder (housing, cover) (1) in the bearing jacket gland (5) and setting
Chamber (6) is filled with hydraulic oil (7) in each closed cavity (6).
2. the fluid power static pressure thrust bearing of the axial kick according to claim 1 for flat double reduction gearbox output shafts,
It is characterized by: being equipped with a circle circumferential slot (3.1) on the outer circle wall of each bearing inner-core (3)；
Several damping holes (3.2) are equipped with towards closed cavity (6) one end in each bearing inner-core (3)；
The each damping hole (3.2) one end with corresponding closed cavity (6) be connected to, the other end with corresponding circumferential slot
(3.1) it is connected to.
3. the fluid power static pressure thrust bearing of the axial kick according to claim 1 for flat double reduction gearbox output shafts,
It is characterized by: being equipped with a circle sealing ring (8) between each bearing inner-core (3) and corresponding brearing bore (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821612065.1U CN208997178U (en) | 2018-09-30 | 2018-09-30 | The fluid power static pressure thrust bearing of axial kick for flat double reduction gearbox output shafts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821612065.1U CN208997178U (en) | 2018-09-30 | 2018-09-30 | The fluid power static pressure thrust bearing of axial kick for flat double reduction gearbox output shafts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208997178U true CN208997178U (en) | 2019-06-18 |
Family
ID=66802312
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821612065.1U Active CN208997178U (en) | 2018-09-30 | 2018-09-30 | The fluid power static pressure thrust bearing of axial kick for flat double reduction gearbox output shafts |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208997178U (en) |
-
2018
- 2018-09-30 CN CN201821612065.1U patent/CN208997178U/en active Active
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