CN211501570U

CN211501570U - Oil-seal-free speed reducer for pinch roll in steel industry

Info

Publication number: CN211501570U
Application number: CN201922447532.0U
Authority: CN
Inventors: 陆晓妹; 孙健; 康宝刚; 翁燕; 张梅红; 殷庆凤
Original assignee: Jiangsu Tailong Decelerator Machinery Co Ltd
Current assignee: Jiangsu Tailong Decelerator Machinery Co Ltd
Priority date: 2019-12-30
Filing date: 2019-12-30
Publication date: 2020-09-15
Anticipated expiration: 2029-12-30

Abstract

The utility model relates to an there is not oily sealed speed reducer for steel industry pinch roll, input shaft one end is through stifle encapsulation, the other end cross-under passes through the lid, pass through the support bearing of lid crimping input shaft on the box, cup joint the oil slinger on the input shaft outside the support bearing, the oil slinger outside along the axial equipartition more than two oil slinger pieces, pass through the lock of the outer input shaft axial segment of lid on the connection and through the bolt upper and lower oil slinger shell, upper and lower oil slinger shell is equipped with more than two sections of semi-circular oil slinger rooms along the input shaft axial, two half circular oil slinger rooms form a complete circular oil slinger room, oil slinger room lateral wall and oil slinger outer peripheral wall clearance fit, all hold an oil slinger piece in each room, oil slinger piece and the chamber bottom contact of semi-circular oil slinger room; the structure of the output shaft penetrating through the cover is the same as that of the input shaft. The structure is compact, and the sealing device is suitable for safe sealing use in the environment of the steel industry.

Description

Oil-seal-free speed reducer for pinch roll in steel industry

Technical Field

The utility model relates to a speed reducer, it is one kind specifically to say so and be used for steel industry pinch roll not to have oil seal speed reducer.

Background

With the rapid development of industrial technology in China, the speed reducer is widely applied to mechanical equipment in the industries of metallurgy, mine, chemical industry, building, agriculture, transportation, power generation and the like. The requirement on the speed reducer is higher and higher, wherein for the special use environment of high temperature and dust in the steel industry, the oil seal structure adopted by the traditional speed reducer is easy to age or enter dust after long-term use, so that the sealing performance and the service life are influenced, and the increasingly higher performance requirement on mechanical equipment cannot be met.

Disclosure of Invention

The utility model provides a compact structure is fit for the steel industry pinch roll that is used for the safe sealing under the steel industry environment and does not have the oil blanket speed reducer.

The utility model adopts the technical proposal that: the utility model provides a be used for steel industry pinch roll not have oily speed reducer that seals, includes box, case lid, input shaft, output shaft, and input shaft, output shaft stretch out the box back to the back mutually and adorn characterized by through the case lid: one end of the input shaft is packaged by a blank cap, the other end of the input shaft is connected with a through cap in a penetrating mode, the through cap is in compression joint with a support bearing of the input shaft on a box body, an oil slinger is sleeved on the input shaft outside the support bearing, more than two oil slinger sheets are uniformly distributed on the outer side of the oil slinger along the axial direction, an input shaft section outside the through cap is connected in a wrapping mode and locked with an upper oil slinger shell and a lower oil slinger shell through bolts, more than two sections of semicircular oil slinger cavities along the axial direction of the input shaft are arranged in the upper oil slinger shell and the lower oil slinger shell respectively, the two semicircular oil slinger cavities form a complete circular oil slinger cavity, the side wall of the oil slinger cavity is in clearance fit with; the structure of the output shaft penetrating through the cover is the same as that of the input shaft.

Furthermore, locking feet which are locked by bolts are correspondingly arranged on two sides of the outer wall of the upper oil throwing shell and the lower oil throwing shell from top to bottom.

Furthermore, a distance ring is arranged between a gear meshed with the input shaft and the output shaft and a gland side support bearing corresponding to each shaft.

Furthermore, a feeding/discharging pipeline is arranged at the bottom of one side of the box body, and a feeding/discharging pipeline is arranged at one side of the box cover.

Furthermore, the bottom of one side of the box body is provided with a screw plug.

Furthermore, a sight hole cover is arranged at the top of the box cover.

Further, a ventilation cover is arranged on the top of the box cover.

The utility model discloses set up the oil slinger that the area threw away the oil ring piece on passing through the outer shaft part of lid, through every oil slinger piece cooperation respectively correspond to holding tightly epaxial, in the circular oil slinger chamber single cavity of interior oil slinger shell of lower time, the incasement fluid is through the oil slinger piece swing realization movive seal in the cavity, can effectively avoid traditional rubber oil seal's high temperature ageing simultaneously, and get rid of the dust when the tight fit is sealed and influence sealed face and lead to the problem that the motion clearance produced the leakage, a structure is simple, sealed dustproof effectual, be fit for the safety seal under the steel industry environment and use.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a top half-sectional view of FIG. 1;

fig. 3 is an enlarged view of a portion a in fig. 2.

In the figure: the device comprises a box body 1, a box cover 2, an input shaft 3, an output shaft 4, a gear 5, a distance ring 6, a blank cover 7, a transparent cover 8, an oil slinger 9, an oil slinger sheet 10, a semicircular oil slinger shell 11, a circular oil slinger cavity 12, an inlet/outlet pipeline 13, a screw plug 14, a sight hole cover 15, a ventilation cover 16 and a support bearing 17.

Detailed Description

The following further description is made in conjunction with the accompanying drawings and examples.

Fig. 1, 2 and 3 show: an oil-free sealing speed reducer for a pinch roll in the steel industry comprises a box body 1, a box cover 2, an input shaft 3, an output shaft 4, a gear 5, a distance ring 6, a blank cap 7, a transparent cap 8, an oil slinger 9, an oil slinger sheet 10, a semicircular oil slinger shell 11, an inlet/outlet pipeline 13, a screw plug 14, a sight hole cover 15 and a ventilation hood 16. An input shaft 3 and an output shaft 4 extend out of the box body 1 in a back-to-back manner and are covered by a box cover 2, one end of the input shaft 3 is encapsulated by a blank cover 7, the other end of the input shaft penetrates through a through cover 8, the through cover is pressed and connected with a support bearing 17 of the input shaft on the box body, an oil slinger 9 is sleeved on the input shaft outside the support bearing, more than two oil slinger sheets 10 are uniformly distributed on the outer side of the oil slinger along the axial direction, an upper semicircular oil slinger shell 11 and a lower semicircular oil slinger shell 11 are connected on the shaft, the two sides of the outer wall of the lower two semi-circular oil throwing shell are both provided with an upper locking pin and a lower locking pin, and the locking pins are connected with bolts in a penetrating way for locking, more than two sections of semi-circular oil throwing cavities along the axial direction of the input shaft are arranged in the upper two semi-circular oil throwing shells and the lower two semi-circular oil throwing shells, the two semi-circular oil throwing cavities form a complete circular oil throwing cavity 12, the side wall of the complete circular oil throwing cavity 12 is in clearance fit with the outer circumferential wall of an oil throwing ring, an oil throwing ring sheet is arranged in each cavity, and the oil throwing ring sheets; the structure of the output shaft penetrating through the cover is the same as that of the input shaft. A distance ring 6 is arranged between the gear 5 meshed with the input shaft and the output shaft and the support bearing at the side of the gland cover corresponding to the respective shafts.

In order to further improve the usability of the speed reducer, an inlet/outlet pipeline 13 is arranged at the bottom of one side of the box body and at the side of the box cover. The bottom of one side of the box body is provided with a screw plug 14. The top of the box cover is provided with a sight hole cover 15. A vent hood 16 is provided at the top of the box cover.

Claims

1. The utility model provides a be used for steel industry pinch roll not have oily speed reducer that seals, includes box, case lid, input shaft, output shaft, and input shaft, output shaft stretch out the box back to the back mutually and adorn characterized by through the case lid: one end of the input shaft is packaged by a blank cap, the other end of the input shaft is connected with a through cap in a penetrating mode, the through cap is in compression joint with a support bearing of the input shaft on a box body, an oil slinger is sleeved on the input shaft outside the support bearing, more than two oil slinger sheets are uniformly distributed on the outer side of the oil slinger along the axial direction, an input shaft section outside the through cap is connected in a wrapping mode and locked with an upper oil slinger shell and a lower oil slinger shell through bolts, more than two sections of semicircular oil slinger cavities along the axial direction of the input shaft are arranged in the upper oil slinger shell and the lower oil slinger shell respectively, the two semicircular oil slinger cavities form a complete circular oil slinger cavity, the side wall of the oil slinger cavity is in clearance fit with; the structure of the output shaft penetrating through the cover is the same as that of the input shaft.

2. The oil-seal-free speed reducer for the pinch roll in the steel industry as claimed in claim 1, wherein: and locking feet which are locked by bolts are correspondingly arranged at the two sides of the outer wall of the upper oil throwing shell and the lower oil throwing shell.

3. The oil-seal-free speed reducer for the pinch roll in the steel industry as claimed in claim 1, wherein: and a distance ring is arranged between the gear meshed with the input shaft and the output shaft and the support bearing on the side of the gland cover corresponding to each shaft.

4. The oil-seal-free speed reducer for the pinch roll in the steel industry as claimed in claim 1, wherein: and the bottom of one side of the box body is provided with a feeding/discharging pipeline, and one side of the box cover is provided with a feeding/discharging pipeline.

5. The oil-seal-free speed reducer for the pinch roll in the steel industry as claimed in claim 1, wherein: and a screw plug is arranged at the bottom of one side of the box body.

6. The oil-seal-free speed reducer for the pinch roll in the steel industry as claimed in claim 1, wherein: and a sight hole cover is arranged at the top of the box cover.

7. The oil-seal-free speed reducer for the pinch roll in the steel industry as claimed in claim 1, wherein: and a ventilation cover is arranged at the top of the box cover.