CN214404687U

CN214404687U - Intermediate supporting bearing structure of loader transmission system

Info

Publication number: CN214404687U
Application number: CN202022606348.9U
Authority: CN
Inventors: 沈进; 李德林; 苏权福; 兰文财; 段红霞
Original assignee: Lonking Shanghai Machinery Parts Co ltd
Current assignee: Lonking Shanghai Machinery Parts Co ltd
Priority date: 2020-11-12
Filing date: 2020-11-12
Publication date: 2021-10-15
Anticipated expiration: 2030-11-12

Abstract

The utility model discloses a supporting bearing structure in middle of loader transmission system, include the end cover that is fixed in the bearing top through bolt and end cover packing ring to and be fixed in the integral key shaft on the bearing through slotted nut and spline shaft packing ring, and the end cover has the flange fork, still including the skeleton oil blanket that is located the end cover both ends, and the O shape circle that is located the integral key shaft both ends, the end cover is every end to be equipped with two at least skeleton oil blanket, and O shape circle is arranged in between slotted nut and the spline shaft packing ring. The utility model discloses a when two skeleton oil seals are sealed, add at the integral key shaft terminal surface and establish O shape circle, form multiple seal structure, can prevent that mud, water and foreign matter etc. from getting into the inner chamber and damaging the bearing, also can effectively prevent lubricating grease from spilling over and causing the bearing phenomenon of burning futilely, reduce the life of intermediate support, greatly reduced loader transmission system's fault rate and cost of maintenance.

Description

Intermediate supporting bearing structure of loader transmission system

Technical Field

The utility model relates to a loader transmission system intermediate support bearing structure belongs to transmission system technical field.

Background

In the prior art, a loader drive system generally comprises a front drive axle, a front drive shaft, an intermediate support, a middle drive shaft, a variable transmission case, a rear drive axle and the like, and realizes a torque transmission process of the transmission case and the front drive axle. The bearing has the defects that the lubricating is insufficient due to the fact that the intermediate bearing enters water, mud, sand and stone and other foreign matters or lubricating grease overflows, so that the bearing is greatly damaged, and the failure rate of the intermediate bearing is high. Therefore, whether the middle support bearing of the transmission system is waterproof and whether the lubricating grease is sufficient is important to the use safety and the service life of the middle support bearing of the transmission system, and higher quality requirements are put on the sealing performance of the middle support bearing of the transmission system. At present, a middle supporting bearing of a transmission system mainly adopts a single-framework oil seal, the end face of the middle supporting bearing has no waterproof function (water seepage can occur from a spline), and the fault caused by the reasons cannot be avoided.

Disclosure of Invention

The above insufficiency to prior art, the utility model aims to provide a supporting bearing structure in middle of loader transmission system can prevent effectively that middle supporting bearing from getting into the problem of muddy water and leaking lubricating grease.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

an intermediate support bearing structure of a loader drive train, comprising:

the end cover is fixed above the supporting seat through bolts and an end cover gasket, the spline shaft is fixed on the supporting seat through a slotted nut and a spline shaft gasket, and the end cover is provided with a flange fork; still including being located the skeleton oil blanket at end cover both ends and being located the O shape circle at integral key shaft both ends, the end cover is equipped with at least two every end the skeleton oil blanket, O shape circle is arranged in between slotted nut and the spline shaft packing ring.

According to the utility model discloses an embodiment, the end cover both ends respectively are equipped with two the skeleton oil blanket.

According to the utility model discloses an embodiment, the end cover middle part is equipped with the oil cup.

Compared with the prior art, the beneficial effects of the utility model reside in that:

the utility model discloses a when two skeleton oil seals are sealed, add at the integral key shaft terminal surface and establish O shape circle, form multiple seal structure, can prevent that mud, water and foreign matter etc. from getting into the inner chamber and damaging the bearing, also can effectively prevent lubricating grease from spilling over and causing the bearing phenomenon of burning futilely, reduce the life of intermediate support, greatly reduced loader transmission system's fault rate and cost of maintenance.

The conception, the specific structure and the technical effects of the present invention will be further described with reference to the accompanying drawings, so as to fully understand the objects, the features and the effects of the present invention.

Drawings

FIG. 1 is a schematic view of a prior art intermediate support bearing of a loader drive train;

FIG. 2 is a schematic diagram of the structure of the intermediate support bearing of the transmission system of the loader in the preferred embodiment.

The reference numbers are as follows:

1-slotted nut, 2-flange fork, 3-bolt, 4-washer, 5-end cover, 6-oil seal, 7-oil cup, 8-supporting seat, 9-spline shaft, 10-washer and 11-O-shaped ring.

Detailed Description

The technical contents of the preferred embodiments of the present invention will be more clearly understood and appreciated by referring to the drawings attached to the specification. The present invention may be embodied in many different forms of embodiments, and the scope of the invention is not limited to the embodiments described herein.

As shown in fig. 1, the intermediate support bearing structure of the conventional loader transmission system is composed of a slotted nut 1, a flange fork 2, a bolt 3, an end cover gasket 4, an end cover 5, a framework oil seal 6, an oil cup 7, a support base 8, a spline shaft 9 and a spline shaft gasket 10. Because one end of the end cover 5 is respectively provided with a framework oil seal, the sealing performance is not firm, foreign matters such as water, silt, stone and the like easily enter the inner cavity of the middle support to damage the bearing, and lubricating grease overflows to cause the dry burning phenomenon of the bearing. And because the terminal surface does not have waterproof function, adopt single skeleton oil blanket still to seep water from the integral key shaft easily, can't avoid the trouble to take place.

As shown in fig. 2, the utility model provides a loader transmission system intermediate support bearing structure, include: the end cover 5 is fixed above the supporting seat 8 through a bolt 3 and an end cover gasket 4, the spline shaft 9 is fixed on the supporting seat 8 through a slotted nut 1 and a spline shaft gasket 10, and the end cover 5 is provided with a flange fork 2; the spline shaft structure is characterized by further comprising framework oil seals 6 located at two ends of the end cover 5 and O-shaped rings 11 located at two ends of the spline shaft 9, wherein at least two framework oil seals 6 are arranged at each end of the end cover 5, and the O-shaped rings 11 are arranged between the slotted nuts 1 and the spline shaft washers 10.

In one embodiment, two framework oil seals 6 are respectively arranged at two ends of the end cover 5.

In one embodiment, an oil cup 7 is arranged in the middle of the end cover 5.

In the above embodiment, when the double-framework oil seal is adopted for sealing, the O-shaped ring is additionally arranged on the end face of the spline shaft to form a multiple sealing structure, so that slurry, water, foreign matters and the like can be prevented from entering the inner cavity to damage the bearing, the phenomenon of dry burning of the bearing caused by overflow of lubricating grease can be effectively prevented, the service life of the intermediate bearing is shortened, and the failure rate and the maintenance cost of a loader transmission system are greatly reduced.

The foregoing has described in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations could be devised by those skilled in the art in light of the teachings of this invention without undue experimentation. Therefore, the technical solutions that can be obtained by a person skilled in the art through logic analysis, reasoning or limited experiments based on the prior art according to the concepts of the present invention should be within the scope of protection defined by the claims.

Claims

1. The intermediate supporting bearing structure of the loader transmission system comprises an end cover fixed above a supporting seat through bolts and an end cover gasket, and a spline shaft fixed on the supporting seat through a slotted nut and a spline shaft gasket, wherein the end cover is provided with a flange fork.

2. The intermediate support bearing structure of a loader drive train according to claim 1 wherein two of said frame oil seals are provided at each end of said end cover.

3. The intermediate support bearing structure of a loader drive train according to claim 1 wherein the end cap is provided with an oil cup in the middle.