CN217458755U - Novel sealing device for tail wheel of elevator - Google Patents

Abstract

The utility model discloses a novel lifting machine tailwheel is sealed device, include: the shaft sleeve is detachably arranged on a tail wheel shaft, the shaft sleeve is arranged on the shaft sleeve and can rotate relatively, the stop block is arranged on a shell of a tail box of the elevator, the end cover is arranged on the slide, and the slide is fixedly sleeved on the shaft sleeve and abutted to the stop block. In the utility model, the tail wheel assembly is completely sealed in the shell of the lifter, and the flange is connected with the filling sealing material, so that the powder overflow phenomenon is completely avoided; the wear-resistant sleeve and the bearing bush are made of wear-resistant materials and are subjected to heat treatment, so that the wear resistance is greatly improved, and the service life is prolonged; the wear-resistant shaft sleeve replaces a bearing to serve as a rotary support body, lubrication is not needed, maintenance is really free, and maintenance cost is greatly reduced compared with the prior art.

Description

Novel sealing device for tail wheel of elevator

Technical Field

The utility model belongs to the technical field of the lifting machine technique and specifically relates to a novel sealing of lifting machine tailwheel device.

Background

The hoister is widely used in various industrial and mining enterprises and is used for hoisting materials from a low position to a high position. A felt sealing gasket is arranged between the tail shell and the cover plate of the elevator, and rotary supporting components such as a sealing assembly, a bearing seat and the like are arranged outside the shell. Simple structure, it is convenient to patrol and examine, and it is convenient that the bearing fills lubricating oil. However, the tail sealing structure has the following main problems:

the sealing assembly device is installed on a tail shaft, the tail shaft is of an up-and-down floating structure, a felt sealing gasket can move relative to the sealing assembly, and the structure can cause the felt between an outer shell cover plate and a sealing plate to be abraded.

And secondly, the felt sealing gasket is integrally provided with a central hole at the shaft part of the tail wheel in the initial installation stage, and after the equipment runs for a period of time, the felt sealing gasket and the tail wheel are relatively worn, so that the sealing effect is ineffective.

And thirdly, after the equipment is abraded, if the post-treatment process needs to be recovered to the factory installation requirement, the workload is greatly increased, the treatment time is long, parts such as bearings and framework sealing are easily damaged, and the effect is not ideal.

And fourthly, due to the long-term ash leakage condition, the dust can directly pollute the lubricating state of the bearing, so that the lubrication failure is caused, the shaft part is abraded, the safety of the bearing is reduced, the maintenance cost is increased, and the equipment accident is caused.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the technical problem and providing a novel sealing device for the tail wheel of the elevator.

The technical scheme of the utility model: a novel sealing device for a tail wheel of a hoisting machine comprises: the shaft sleeve is detachably arranged on a tail wheel shaft, the shaft sleeve is arranged on the shaft sleeve and can rotate relatively, the stop block is arranged on a shell of a tail box of the elevator, the end cover is arranged on the slide, and the slide is fixedly sleeved on the shaft sleeve and abutted to the stop block.

Preferably, a flat key and a bolt are arranged between the shaft sleeve and the tail wheel shaft.

Preferably, the shaft sleeve and the bearing bush are both in a convex shape, and the bearing bush is sleeved on the shaft sleeve.

Preferably, the stop block is provided with a groove, one side of the bottom of the sliding seat abuts against the bearing bush, the sliding seat is provided with a protruding portion extending upwards, and one side of the protruding portion abuts against the groove.

Preferably, the shaft sleeve is a wear-resistant shaft sleeve, and the bearing bush is a wear-resistant bearing bush.

The utility model has the advantages that: in the utility model, the tail wheel assembly is completely sealed in the shell of the lifter, and the flange is connected with the filling sealing material, so that the powder overflow phenomenon is completely avoided; the wear-resistant sleeve and the bearing bush are made of wear-resistant materials and are subjected to heat treatment, so that the wear resistance is greatly improved, and the service life is prolonged; the wear-resistant shaft sleeve replaces a bearing to serve as a rotary support body, lubrication is not needed, maintenance is really free, and maintenance cost is greatly reduced compared with the prior art.

Drawings

FIG. 1 is a cross-sectional view of the overall structure of the preferred embodiment of the present invention in use;

fig. 2 is a schematic view of a sealing structure of a tail wheel of an original hoisting machine.

Reference numerals: the bearing comprises a shaft sleeve 10, a bearing bush 2, a sliding seat 3, an end cover 4 and a stop block 5.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to 2, a novel sealing device for a tail pulley of a hoist includes: axle sleeve 10, axle bush 2, slide 3, end cover 4 and dog 5, axle sleeve 10 detachably sets up on the tail-wheel axle, and axle bush 2 sets up on axle sleeve 10 and can rotate relative to axle sleeve 10, and dog 5 sets up on the lift tail-box casing, and end cover 4 sets up on slide 3, and slide 3 fixed cover is established on axle bush 2 and with 5 butts of dog. The utility model discloses in, axle sleeve 10 is fixed on the tail-gate shaft, axle bush 2 adopts interference fit with slide 3, axle bush 2 and axle sleeve 10 design are clearance fit and motion each other, dog 5 fixes it on the tail-gate casing through hexagon socket head cap screw, the epaxial rotation of tail-gate drives axle sleeve 10 and rotates, can't take place relative rotation when axle sleeve 10 takes place wearing and tearing with axle bush 2, axle sleeve 10 drives slide 3 through axle bush 2 and rotates, and each part is whole to be sealed up inside the hoisting machine casing, there is not the powder thoroughly and spills over the phenomenon.

As a preferred embodiment of the present invention, it may also have the following additional technical features:

in this embodiment, a flat key and a bolt are disposed between the shaft sleeve 10 and the tail wheel shaft to prevent the shaft sleeve 10 from slipping on the tail wheel shaft.

In this embodiment, axle sleeve 10 and axle bush 2 all are the convex character form, and axle bush 2 cover is established on axle sleeve 10, reaches better sealed effect.

In this embodiment, the stopper 5 is provided with a groove, one side of the bottom of the sliding seat 3 abuts against the bearing bush 2, the sliding seat 3 is provided with a protruding portion extending upwards, and one side of the protruding portion abuts against the groove, so that a better sealing effect is achieved.

In this embodiment, the shaft sleeve 10 is a wear-resistant shaft sleeve, and the bearing bush 2 is a wear-resistant bearing bush, so that the service lives of the shaft sleeve 10 and the bearing bush 2 are prolonged. Specifically, the shaft sleeve 10 can be made of a ceramic shaft sleeve or a shaft sleeve made of wear-resistant steel plates or other wear-resistant materials; the bearing bush 2 can be made of ceramic bearing bushes, wear-resistant steel plates or other wear-resistant materials.

It is to be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (5)

1. The utility model provides a novel lifting machine tailwheel is sealed device which characterized in that includes: axle sleeve (10), axle bush (2), slide (3), end cover (4) and dog (5), axle sleeve (10) detachably sets up on the tail-wheel axle, axle bush (2) set up just can be relative on axle sleeve (10) rotate, dog (5) set up on the hoist tail-wheel box casing, end cover (4) set up on slide (3), slide (3) fixed cover establish on axle bush (2) and with dog (5) butt.

2. The novel sealing device for the tail wheel of the hoisting machine as set forth in claim 1, characterized in that: and a flat key and a bolt are arranged between the shaft sleeve (10) and the tail wheel shaft.

3. The novel sealing device for the tail wheel of the hoisting machine as claimed in claim 1, wherein: the bearing bush is characterized in that the shaft sleeve (10) and the bearing bush (2) are both in a convex shape, and the bearing bush (2) is sleeved on the shaft sleeve (10).

4. The novel sealing device for the tail wheel of the hoisting machine as claimed in claim 1, wherein: the stop block (5) is provided with a groove, one side of the bottom of the sliding seat (3) is abutted to the bearing bush (2), the sliding seat (3) is provided with a protruding portion extending upwards, and one side of the protruding portion is abutted to the groove.

5. The novel sealing device for the tail wheel of the hoisting machine as claimed in claim 1, wherein: the shaft sleeve (10) is a wear-resistant shaft sleeve, and the bearing bush (2) is a wear-resistant bearing bush.

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