CN217355561U - Sealing structure of bearing seat at tail part of elevator - Google Patents

Abstract

The utility model provides a sealing structure of a tail bearing seat of a hoisting machine, which comprises a high-pressure hose, an air inlet pipe joint, a tail bearing seat, an annular gas cavity, a PTFE sealing strip, an annular pressing cover and a plugging plate, wherein the tail bearing seat is symmetrically installed on the left and right end faces of a tail shell of the hoisting machine, the plugging plate is installed on the right end face of the tail bearing seat, the annular pressing cover is installed inside the tail bearing seat, the PTFE sealing strip is embedded in the annular side face inside the tail bearing seat, the annular gas cavity is arranged on the left side inside the tail bearing seat, the air inlet pipe joint is welded on the upper side inside the tail bearing seat, the high-pressure hose is sleeved on the annular side face of the air inlet pipe joint, this design has solved the inside problem that gets into muddy water easily of original lifting machine afterbody bearing frame and lead to wearing and tearing, the utility model discloses rational in infrastructure, possess the sealing ability of blowing, avoid outside muddy water to get into the inside wearing and tearing that cause of lifting machine afterbody bearing frame.

Description

Sealing structure of bearing seat at tail part of elevator

Technical Field

The utility model relates to a lifting machine afterbody bearing frame seal structure belongs to lifting machine technical field.

Background

In the present domestic lifting machine trade, originally just prevent liquid leakage with compressing tightly the packing, will leak when outside muddy water liquid advances between axle and the packing for a long time to lead to the afterbody bearing frame the wearing and tearing condition to appear, and then reduced lifting machine rotation axis life, the problem that above-mentioned appearance was solved to a lifting machine afterbody bearing frame seal structure that now urgently needs.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims at providing a lifting machine afterbody bearing frame seal structure to solve the problem that proposes in the above-mentioned background art, the utility model discloses rational in infrastructure, possess the sealing capacity of blowing, avoid outside muddy water to get into the inside wearing and tearing that cause of lifting machine afterbody bearing frame.

In order to achieve the above purpose, the present invention is realized by the following technical solution: a sealing structure of a tail bearing block of an elevator comprises an elevator tail shell, a belt pulley, a rotating shaft and a blowing sealing assembly, wherein the rotating shaft is arranged on the lower side in the elevator tail shell, the belt pulley is symmetrically sleeved on the left side and the right side of the annular side surface of the rotating shaft, the blowing sealing assembly is symmetrically arranged at the left end and the right end of the rotating shaft, the blowing sealing assembly comprises a high-pressure hose, an air inlet pipe connector, a tail bearing block, an annular gas containing cavity, a polytetrafluoroethylene sealing strip, an annular pressing cover and a plugging plate, the tail bearing block is symmetrically arranged on the left end surface and the right end surface of the elevator tail shell, the plugging plate is arranged on the right end surface of the tail bearing block, the annular pressing cover is arranged in the tail bearing block, the polytetrafluoroethylene sealing strip is embedded into the annular side surface in the tail bearing block, the annular gas containing cavity is formed in the left side in the tail bearing block, the air inlet pipe connector is welded on the upper side in the tail bearing block, the upper side of the annular side surface of the air inlet pipe joint is sleeved with a high-pressure hose.

Furthermore, two groups of high-pressure hoses are sleeved according to the same specification, fixed hose hoops are sleeved on the lower sides of the annular side surfaces of the two groups of high-pressure hoses, and inlets of the two groups of high-pressure hoses are communicated with an outlet of an external air pump.

Furthermore, the air inlet pipe connectors are welded in two groups in the same specification, the annular gas cavity is provided in two groups in the same specification, and the air inlet pipe connectors are communicated with the annular gas cavity.

Furthermore, the PTFE sealing strips and other specifications are plugged in two groups, an annular through cavity is formed in the left end face of the tail bearing seat, the inner diameter of the annular through cavity is larger than the diameter of the rotating shaft, and the annular gas containing cavity is communicated with the annular gas containing cavity.

Furthermore, two groups of annular compression covers are installed according to the same specification, two groups of tail bearing seats are installed according to the same specification, two groups of plugging plates are installed according to the same specification, and the annular compression covers, the tail bearing seats and the plugging plates are of detachable structures.

Furthermore, ball bearings are sleeved at the left end and the right end of the rotating shaft.

The utility model has the advantages that: the utility model relates to a sealing structure of a bearing block at the tail part of a hoisting machine, which is characterized in that an air inlet pipe joint, a bearing block at the tail part, an annular gas containing cavity and a PTFE sealing strip are added, compressed gas is continuously conveyed into two groups of high-pressure hoses by the external air pump, then the compressed gas enters the two groups of annular gas cavities through the two groups of gas inlet pipe joints, at the moment, the two groups of PTFE sealing strips can seal the insides of the two groups of tail bearing seats, compressed air in the two groups of annular gas cavities is prevented from being discharged outwards, then the two groups of annular through cavities can guide the compressed air in the two groups of annular gas cavities inwards, so as to blow off the muddy water adhered to the inner side of the annular side surface of the rotating shaft, avoid the muddy water from entering the two groups of tail bearing seats to cause the rotating shaft to be worn, and greatly prolong the service life of the rotating shaft through improvement.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

fig. 1 is a schematic structural view of a sealing structure of a bearing seat at the tail part of a hoisting machine of the utility model;

FIG. 2 is an enlarged view of A in FIG. 1;

FIG. 3 is an enlarged view of B in FIG. 2;

in the figure: 1-a shell at the tail part of the lifter, 2-a belt pulley, 3-a rotating shaft, 31-a ball bearing, 4-a blowing sealing component, 41-a high-pressure hose, 42-a gas inlet pipe joint, 43-a bearing seat at the tail part, 44-an annular gas cavity, 45-a tetrafluoro sealing strip, 46-an annular pressing cover and 47-a plugging plate.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

Referring to fig. 1-3, the present invention provides a technical solution: the utility model provides a lifting machine afterbody bearing frame seal structure, includes lifting machine afterbody casing 1, belt pulley 2, rotation axis 3 and the sealed subassembly 4 of blowing, and 1 inside downside of lifting machine afterbody casing is provided with rotation axis 3, and 3 annular side left and right sides symmetry covers of rotation axis are equipped with belt pulley 2, and the both ends symmetry is provided with the sealed subassembly 4 of blowing about the rotation axis 3.

The blowing sealing component 4 comprises a high-pressure hose 41, an air inlet pipe joint 42, a tail bearing seat 43, an annular gas containing cavity 44, a polytetrafluoroethylene sealing strip 45, an annular pressing cover 46 and a sealing plate 47, the tail bearing seat 43 is symmetrically installed on the left end face and the right end face of the tail shell 1 of the elevator, the sealing plate 47 is installed on the right end face of the tail bearing seat 43, the annular pressing cover 46 is installed inside the tail bearing seat 43, the polytetrafluoroethylene sealing strip 45 is embedded into the annular side face of the tail bearing seat 43, the annular gas containing cavity 44 is formed in the left side inside the tail bearing seat 43, the air inlet pipe joint 42 is welded on the upper side inside the tail bearing seat 43, the high-pressure hose 41 is sleeved on the annular side face of the air inlet pipe joint 42, and the problem that muddy water easily enters the tail bearing seat of the original elevator and is abraded is solved through the design.

Two groups of high-pressure hoses 41 are sleeved in an equal-specification manner, fixed hose hoops are sleeved on the lower sides of the annular side faces of the two groups of high-pressure hoses 41, inlets of the two groups of high-pressure hoses 41 are communicated with an external air pump outlet, the fixed hose hoops conveniently fix the high-pressure hoses 41 on the annular side face of an air inlet pipe joint 42, an external air pump conveniently conveys compressed air to the inside of the high-pressure hoses 41, two groups of air inlet pipe joints 42 are welded in an equal-specification manner, two groups of equal-specification annular air cavities 44 are formed in the annular air cavities 44, the air inlet pipe joint 42 is communicated with the annular air cavities 44, the compressed air in the two groups of high-pressure hoses 41 is guided into the two groups of annular air cavities 44 by the two groups of air inlet pipe joints 42, two groups of equal-specification polytetrafluoroethylene sealing strips 45 are stuffed in the two groups, an annular through cavity is formed in the left end face of a tail bearing pedestal 43, the inner diameter of the annular through cavity is larger than the diameter of a rotating shaft 3, and the annular air cavities 44 are communicated with the annular air cavities 44, two sets of tetrafluoro sealing strips 45 can seal inside two sets of tail bearing seats 43, avoid the inside compressed air in annular gas appearance chamber 44 to discharge to the outside, and the annular leads to the chamber and conveniently leads to the compressed air in annular gas appearance chamber 44 to the inboard muddy water of adhesion at the annular side of rotation axis 3 blows off.

Annular compresses tightly and covers such as 46 specifications and installs two sets ofly, tail bearing frame 43 specifications and installs two sets ofly, plugging plate 47 specifications and installs two sets ofly, annular compresses tightly and covers 46, tail bearing frame 43 and plugging plate 47 are detachable construction, two sets of annular compresses tightly and covers 46 and can press down spacingly to two sets of tetrafluoro seal strip 45, both ends are sealed the protection about two sets of tail bearing frame 43 can be to rotating shaft 3, and two sets of plugging plates 47 can carry out the shutoff to two sets of tail bearing frame 43 openings, both ends all overlap and are equipped with ball bearing 31 about rotating shaft 3, ball bearing 31 makes rotating shaft 3 rotational stability better.

As an embodiment of the present invention: in the rotation use of rotation axis 3, the staff starts external air pump, make external air pump work constantly to the inside compressed gas that carries of two sets of high-pressure hose 41, back compressed gas can get into and be led to two sets of annular gas appearance chambeies 44 through two sets of air inlet pipe joints 42, and two sets of tetrafluoro sealing strip 45 can seal two sets of afterbody bearing frame 43 insides this moment, avoid two sets of annular gas appearance chamber 44 inside compressed air to discharge to the outside, two sets of annular leads to the chamber and can lead to the inboard compressed gas that holds 44 with two sets of annular gas appearance chambeies immediately, so as to blow off the inboard muddy water of adhesion at the annular side of rotation axis 3, avoid muddy water to get into two sets of afterbody bearing frame 43 insides and lead to the rotation axis 3 to be worn and torn.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above, it will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (6)

1. The utility model provides an elevator afterbody bearing frame seal structure, includes elevator afterbody casing, belt pulley, rotation axis and the sealed subassembly of blowing, its characterized in that: a rotating shaft is arranged on the lower side in the tail shell of the elevator, belt pulleys are symmetrically sleeved on the left side and the right side of the annular side surface of the rotating shaft, and air blowing sealing components are symmetrically arranged at the left end and the right end of the rotating shaft;

the air blowing sealing assembly comprises a high-pressure hose, an air inlet pipe connector, a tail bearing seat, an annular gas containing cavity, a polytetrafluoroethylene sealing strip, an annular pressing cover and a plugging plate, the tail bearing seat is symmetrically installed on the left end face and the right end face of a tail shell of the elevator, the plugging plate is installed on the right end face of the tail bearing seat, the annular pressing cover is installed inside the tail bearing seat, the polytetrafluoroethylene sealing strip is embedded into the annular side face in the tail bearing seat, the annular gas containing cavity is formed in the left side inside the tail bearing seat, the air inlet pipe connector is welded on the upper side inside the tail bearing seat, and the high-pressure hose is sleeved on the upper side of the annular side face of the air inlet pipe connector.

2. The elevator tail bearing block sealing structure of claim 1, wherein: two groups of the high-pressure hoses are sleeved in an equal-specification mode, and the lower sides of the annular side faces of the two groups of the high-pressure hoses are sleeved with fixed hose hoops.

3. The elevator tail bearing block sealing structure of claim 1, wherein: the gas inlet pipe connector is welded with two groups of gas inlet pipe connectors in an equal specification mode, the annular gas containing cavity is welded with two groups of gas inlet pipe connectors in an equal specification mode, and the gas inlet pipe connectors are communicated with the annular gas containing cavity.

4. The elevator tail bearing block sealing structure of claim 1, wherein: tetrafluoro sealing strip isotacticity is filled in two sets of, afterbody bearing frame left end face has been seted up the annular and has been led to the chamber, and the annular leads to the intracavity internal diameter and be greater than the rotation axis diameter.

5. The elevator tail bearing block sealing structure of claim 1, wherein: the annular compaction cover is installed two sets ofly to the isotacticity, two sets ofly are installed to afterbody bearing frame isotacticity, two sets ofly are installed to specifications such as shutoff board.

6. The elevator tail bearing block sealing structure of claim 1, wherein: ball bearings are sleeved at the left end and the right end of the rotating shaft.

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