CN219413474U

CN219413474U - Speed reducer sealing device

Info

Publication number: CN219413474U
Application number: CN202223467510.9U
Authority: CN
Inventors: 王刘东; 龚建冲; 王嫣怡; 龚海霞
Original assignee: Nantong Haosheng Lifting Equipment Co ltd
Current assignee: Nantong Haosheng Lifting Equipment Co ltd
Priority date: 2022-12-23
Filing date: 2022-12-23
Publication date: 2023-07-25
Anticipated expiration: 2032-12-23

Abstract

The utility model discloses a speed reducer sealing device, which comprises a speed reducer body and a rotating shaft arranged at the output end of the speed reducer body, wherein a bearing seat is arranged at the outer side of the output end of the speed reducer body, the bearing seat is arranged at the outer side of the output end of the speed reducer body through a bolt in the bearing seat, and a shaft end limiting mechanism is arranged in the bearing seat; this speed reducer sealing device through the mode of bolt fastening, can carry out sealed operation to its output shaft end, avoids the entering of external dust, a plurality of group axle head stop gear internals that this seal structure was inside to be offered simultaneously can carry out spacing processing to the axial force that the speed reducer produced when long-time operation, avoid this axial force to become more and more serious because failing timely restriction, prolong its life, when the axial force is serious to influence its normal operation simultaneously, can trigger automatically and trigger the alarm, in time remind the staff, guarantee the normal clear of follow-up operation.

Description

Speed reducer sealing device

Technical Field

The utility model relates to the technical field related to speed reducers, in particular to a speed reducer sealing device.

Background

The speed reducer is an independent component consisting of gear transmission and gear-worm transmission enclosed in a rigid shell, is commonly used as a speed reduction transmission device between a prime mover and a working machine, has the functions of matching rotating speed and transmitting torque between the prime mover and the working machine or an executing mechanism, is widely applied to modern machinery, and needs to be sealed at the shaft end of the speed reducer when the speed reducer is used, so that external dust is prevented from entering.

However, the structure of sealing the shaft end of the speed reducer is generally installed and fixed through bolts in the prior market, through holes matched with the shaft end are formed in the structure, so that the shaft end can rotate and work conveniently, certain axial force can be generated at the shaft end after the speed reducer is used for a long time, the shaft end is offset, the traditional speed reducer can be found only when the speed reducer is maintained or damaged, and the normal operation of the speed reducer is seriously influenced.

Disclosure of Invention

The utility model aims to provide a speed reducer sealing device, which aims to solve the problems that in the prior art, a structure for sealing the shaft end of a speed reducer in the market is generally provided, the speed reducer is generally fixed by a bolt, a through hole matched with the shaft end is formed in the speed reducer, the shaft end is convenient to rotate and work, but after long-time use, a certain axial force can be generated at the shaft end, so that the shaft end is deviated, and the conventional speed reducer can be generally discovered only when the speed reducer is maintained or damaged, so that the normal operation of the speed reducer is seriously influenced.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the speed reducer sealing device comprises a speed reducer body and a rotating shaft arranged at the output end of the speed reducer body, wherein a bearing seat is arranged on the outer side of the output end of the speed reducer body, the bearing seat is arranged on the outer side of the output end of the speed reducer body through a bolt inside the bearing seat, a shaft end limiting mechanism is arranged inside the bearing seat, and a trigger alarm is arranged at the inner bottom of the shaft end limiting mechanism.

Preferably, the structural shape of the bearing seat is a truncated cone, four groups of bolts are arranged in the bearing seat at equal intervals in an annular mode and are in threaded connection with the speed reducer body, a shaft cavity is formed in the center of the bearing seat, and a rotating shaft is arranged in the shaft cavity.

Preferably, the shaft end limiting mechanisms are arranged in four groups at equal intervals in an annular mode and extend to the inside of the shaft cavity, and bolts are arranged between two adjacent groups of shaft end limiting mechanisms.

Preferably, the shaft end limiting mechanism comprises a connecting cavity, a telescopic rod, a positioning block, a sliding block, a reset spring and a positioning assembly, wherein the connecting cavity is formed in the bearing seat, the positioning block is fixedly arranged in the connecting cavity, the telescopic rod extending to the inside of the shaft cavity is connected in a sliding mode in the positioning block, the sliding block is fixedly arranged on the outer side of the telescopic rod, the sliding block is in sliding connection with the connecting cavity, the reset spring is arranged on the outer side of the telescopic rod between the positioning block and the sliding block, the positioning assembly is arranged at the bottom of the telescopic rod, and the positioning assembly is used for positioning a rotating shaft on the inner side of the positioning assembly.

Preferably, the telescopic rod is in a T shape, the bottom of the telescopic rod is provided with a trigger alarm arranged at the bottom of the connecting cavity, and bolts are arranged between the two groups of connecting cavities.

Preferably, the structure shape of the positioning component is arc-shaped, and a rubber pad is arranged on one side, close to the rotating shaft, of the positioning component.

Compared with the prior art, the utility model has the beneficial effects that: this speed reducer sealing device through the mode of bolt fastening, can carry out sealed operation to its output shaft end, avoids the entering of external dust, a plurality of group axle head stop gear internals that this seal structure was inside to be offered simultaneously can carry out spacing processing to the axial force that the speed reducer produced when long-time operation, avoid this axial force to become more and more serious because failing timely restriction, prolong its life, when the axial force is serious to influence its normal operation simultaneously, can trigger automatically and trigger the alarm, in time remind the staff, guarantee the normal clear of follow-up operation.

Drawings

FIG. 1 is a schematic side sectional view of a bearing housing of the present utility model;

FIG. 2 is a schematic side view of the present utility model;

FIG. 3 is an enlarged schematic view of the structure of the point A in FIG. 1 according to the present utility model

Fig. 4 is a schematic elevational view of the present utility model.

In the figure: 1. a speed reducer body; 2. a rotating shaft; 3. a bearing seat; 4. a shaft end limiting mechanism; 401. a connecting cavity; 402. a telescopic rod; 403. a positioning block; 404. a sliding block; 405. a return spring; 406. a positioning assembly; 5. triggering type alarm; 6. a bolt; 7. an axial cavity.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-4, the present utility model provides a technical solution: the speed reducer sealing device comprises a speed reducer body 1 and a rotating shaft 2 arranged at the output end of the speed reducer body 1;

the outer side of the output end of the speed reducer body 1 is provided with a bearing seat 3, the bearing seat 3 is arranged at the outer side of the output end of the speed reducer body 1 through a bolt 6 in the bearing seat 3, and the inner part of the bearing seat 3 is provided with a shaft end limiting mechanism 4;

wherein, axle head stop gear 4 includes link cavity 401, telescopic link 402, locating piece 403, sliding block 404, reset spring 405 and locating component 406, link cavity 401 is seted up in the inside of bearing frame 3, the inside fixed mounting of link cavity 401 has locating piece 403, the inside sliding connection of locating piece 403 has the telescopic link 402 that extends to the inside of axle chamber 7, the outside fixed mounting of telescopic link 402 has sliding block 404, sliding block 404 and link cavity 401 sliding connection, the telescopic link 402 outside between locating piece 403 and the sliding block 404 is provided with reset spring 405, locating component 406 is installed to the bottom of telescopic link 402, locating component 406 is fixed a position its inboard axis of rotation 2, locating component 406's structural shape is the arc, locating component 406 is close to one side of axis of rotation 2 and is provided with the rubber pad.

Further, through the design of axle head stop gear 4 internal connection chamber 401, telescopic link 402, locating piece 403, sliding block 404, reset spring 405 and locating component 406, can restrict fixed the rotation position of speed reducer body 1 axle head axis of rotation 2, can restrict the processing because long-time operation leads to the axial force that axis of rotation 2 rotated to produce, life when the extension.

It should be noted that: when a certain deflection force occurs, the positioning component 406 and the telescopic rod 402 at the top of the positioning component are extruded to move, the sliding block 404 fixed at the outer side of the telescopic rod 402 is driven to move, the reset spring 405 is extruded, the operation force can be buffered and the position of the operation force can be limited again through the reverse elastic force feedback of the reset spring 405, and the rotation of the rotating shaft 2 can be protected when the deflection force which does not affect the normal operation of the positioning component 406 occurs due to the design of the rubber pad at the side surface of the positioning component, so that the abrasion of the rotating shaft 2 is avoided.

The structural shape of the bearing seat 3 is in a truncated cone shape, four groups of bolts 6 are arranged in the bearing seat 3 at equal intervals in an annular shape, the bolts 6 are in threaded connection with the speed reducer body 1, a shaft cavity 7 is formed in the center of the bearing seat 3, and a rotating shaft 2 is arranged in the shaft cavity 7.

Further, through the design of the bolt 6, the position of the bearing seat 3 can be limited and fixed, the output shaft end of the bearing seat can be sealed, the entry of external dust is avoided, and the bearing seat can be disassembled and maintained.

Four groups of shaft end limiting mechanisms 4 are arranged at equal intervals in an annular shape and extend to the inside of the shaft cavity 7, and bolts 6 are arranged between two adjacent groups of shaft end limiting mechanisms 4.

Further, through the design of axle head stop gear 4 internals and bolt 6 position for when installing, both can not take place the conflict.

The inner bottom of the shaft end limiting mechanism 4 is provided with a trigger type alarm 5, the telescopic rod 402 is of a T shape in structure, the bottom of the telescopic rod is provided with the trigger type alarm 5 arranged at the bottom in the connecting cavity 401, and bolts 6 are arranged between the two groups of connecting cavities 401.

Further, through the design of trigger formula alarm 5, when the long-time operation of speed reducer body 1 leads to its axle head deflection force great, the axle head stop gear 4 internals in this application are difficult to carry out the restriction and influence its normal operation, automatic trigger formula alarm 5 carries out the operation, timely warning staff maintains or changes it, avoids when needing to carry out long-time operation, influences the normal clear of operation, promotes the security simultaneously.

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

Claims

1. Speed reducer sealing device, including speed reducer body (1) and setting up axis of rotation (2) at speed reducer body (1) output, its characterized in that: the automatic speed reducer is characterized in that a bearing seat (3) is arranged on the outer side of the output end of the speed reducer body (1), the bearing seat (3) is arranged on the outer side of the output end of the speed reducer body (1) through a bolt (6) in the bearing seat, a shaft end limiting mechanism (4) is arranged in the bearing seat (3), and a trigger alarm (5) is arranged at the inner bottom of the shaft end limiting mechanism (4).

2. The speed reducer sealing arrangement of claim 1, wherein: the structure shape of the bearing seat (3) is in a round table shape, four groups of bolts (6) are arranged in the bearing seat (3) at equal intervals in an annular shape, the bolts (6) are in threaded connection with the speed reducer body (1), a shaft cavity (7) is formed in the center of the bearing seat (3), and a rotating shaft (2) is arranged in the shaft cavity (7).

3. The speed reducer sealing arrangement of claim 2, wherein: four groups of shaft end limiting mechanisms (4) are arranged at equal intervals in an annular mode and extend to the inside of the shaft cavity (7), and bolts (6) are arranged between two adjacent groups of shaft end limiting mechanisms (4).

4. The speed reducer sealing arrangement of claim 2, wherein: axle head stop gear (4) are including connecting chamber (401), telescopic link (402), locating piece (403), sliding block (404), reset spring (405) and locating component (406), the inside at bearing frame (3) is seted up in connecting chamber (401), the inside fixed mounting in connecting chamber (401) has locating piece (403), the inside sliding connection of locating piece (403) has telescopic link (402) that extend to the inside of axle chamber (7), the outside fixed mounting of telescopic link (402) has sliding block (404), sliding block (404) and connecting chamber (401) sliding connection, telescopic link (402) outside between locating piece (403) and sliding block (404) is provided with reset spring (405), locating component (406) are installed to the bottom of telescopic link (402), locating component (406) are fixed a position its inboard axis of rotation (2).

5. The speed reducer sealing arrangement of claim 4, wherein: the telescopic rod (402) is T-shaped in structure, the bottom of the telescopic rod is provided with a trigger alarm (5) arranged at the inner bottom of the connecting cavity (401), and bolts (6) are arranged between the two groups of connecting cavities (401).

6. The speed reducer sealing arrangement of claim 5, wherein: the structure shape of the positioning component (406) is arc-shaped, and a rubber pad is arranged on one side, close to the rotating shaft (2), of the positioning component (406).