CN214404629U

CN214404629U - High-speed end pressure sealing buffer mechanism of cutting reducer of continuous mining machine

Info

Publication number: CN214404629U
Application number: CN202120043176.0U
Authority: CN
Inventors: 郭进彬; 马福文; 王炳效; 郭大武; 庞宇; 申国建
Original assignee: Taiyuan Institute of China Coal Technology and Engineering Group; Shanxi Tiandi Coal Mining Machinery Co Ltd
Current assignee: Taiyuan Institute of China Coal Technology and Engineering Group; Shanxi Tiandi Coal Mining Machinery Co Ltd
Priority date: 2021-01-08
Filing date: 2021-01-08
Publication date: 2021-10-15
Anticipated expiration: 2031-01-08

Abstract

The utility model belongs to the technical field of even adopt quick-witted cutting reduction gear, specifically be a even adopt quick-witted cutting reduction gear high-speed end pressure seal buffer gear. The bearing seat is installed on a high-speed end shell of a speed reducer, a bearing is installed in the bearing seat, one end of an output shaft is fixed in the bearing, a retaining ring and a spring seat are sleeved on the end portion of the output shaft, an oil seal is arranged below the retaining ring, a sliding gap is arranged between the retaining ring and the oil seal, the oil seal is located between the output shaft and the bearing seat, a plurality of holes are uniformly distributed in the inner side of the spring seat along the circumferential direction, springs are arranged in the holes, the springs are supported between the retaining ring and the spring seat, the outer side of the spring seat is sealed with a binding surface of a motor end cover through an O-shaped ring, the center of the spring seat is provided with a round hole through which a motor connecting shaft can penetrate, the spring seat is embedded on a sealing cover, a seal is arranged between the spring seat and the sealing cover, and the bearing seat are fixed on the high-speed end shell of the speed reducer through screws.

Description

High-speed end pressure sealing buffer mechanism of cutting reducer of continuous mining machine

Technical Field

The utility model belongs to the technical field of even adopt quick-witted cutting reduction gear, specifically be a even adopt quick-witted cutting reduction gear high-speed end pressure seal buffer gear.

Background

The cutting motor of the cutting reducer of the existing continuous mining machine is connected with a cutting part for fixing the reducer through a long bolt and a spigot, the outer side of a gland at the high-speed end of the reducer is sealed with a motor end cover through a static seal, the motor has large overall dimension and long cantilever, and vibration is large during cutting, so that the motor and the long bolt are easily caused to generate certain flexural deformation along with cutting vibration, a gap is easily formed between the gland of the reducer and a binding surface of the motor, external water is caused to enter the reducer and the motor, the motor is burnt out, and oil in the reducer is emulsified; meanwhile, the high-speed box body of the speed reducer has large pressure, and is sealed under the repeated release impact action of pressure gas, so that continuous slippage and failure oil leakage are easy to occur.

Disclosure of Invention

The utility model discloses a solve above-mentioned problem, provide a even high-speed end pressure seal buffer gear of adopting machine cutting reduction gear.

The utility model adopts the following technical proposal: the utility model provides a continuous miner cutting reducer high speed end pressure seal buffer gear, including installing the bearing frame on the casing of reduction gear high speed end, install the bearing in the bearing frame, the bearing internal fixation has the one end of output shaft, the tip cover of output shaft has fender ring and spring holder, it is provided with the oil blanket to keep off the ring below, it is equipped with sliding clearance to keep off between ring and the oil blanket, the oil blanket is located between output shaft and the bearing frame, a plurality of holes of inboard edge circumference equipartition of spring holder, the downthehole spring that is provided with, the spring supports between fender ring and spring holder, the spring holder outside is sealed through O shape circle and motor end cover binding face, the spring holder center is provided with the round hole that can let the motor connecting axle pass, the spring holder is inlayed and is covered in the sealing, be provided with sealedly between spring holder and the sealed lid, sealed lid and bearing frame pass through the fix with screw on reduction gear high speed end casing.

Further, a groove body used for installing a bearing is arranged on the inner side of the lower portion of the bearing seat, a step-shaped groove body is arranged on the inner side of the upper portion of the bearing seat, the oil seal is arranged on the innermost side of the step-shaped groove body, and the baffle ring is clamped at the step.

Further, a seal is arranged between the bearing seat and the high-speed end shell of the speed reducer.

Furthermore, the number of the holes distributed on the inner side of the spring seat along the circumferential direction is 4.

Compared with the prior art, when the pressure of the high-speed box body of the speed reducer expands, the oil seal is extruded to slide to a certain extent and slowly release gas, and when the pressure is reduced to balance the internal pressure and the external pressure, the oil seal restores to the original position under the action of the spring; because the vibration is large during cutting, and the motor is in a long cantilever state, the connection rigidity is easy to be insufficient, and a gap is formed between the motor end cover and the end face of the reducer spring seat, so that water inflow is caused. At this moment, under the effect of spring, the spring holder can keep laminating with the motor is connected to realize outside waterproof effect.

Drawings

FIG. 1 is an installation drawing of the present invention;

FIG. 2 is a schematic structural view of the present invention;

in the figure, 1-motor, 2-motor fixing long bolt, 3-O-shaped ring, 4-motor end cover, 5-spring seat, 6-spring, 7-baffle ring, 8-oil seal, 9-sealing cover, 10-bearing seat, 11-bearing, 12-output shaft and 13-speed reducer high-speed end shell.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention; 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.

As shown in fig. 1 and 2, a high-speed end pressure sealing buffer mechanism of a cutting reducer of a continuous mining machine comprises a bearing seat 10 arranged on a high-speed end shell 13 of the reducer, a bearing 11 is arranged in the bearing seat 10, one end of an output shaft 12 is fixed in the bearing 11, the end part of the output shaft 12 is sleeved with a baffle ring 7 and a spring seat 5, an oil seal 8 is arranged below the baffle ring 7, a sliding gap is arranged between the baffle ring 7 and the oil seal 8, the oil seal 8 is positioned between the output shaft 12 and the

bearing seat

10, 4 holes are uniformly distributed on the inner side of the spring seat 5 along the circumferential direction, a spring 6 is arranged in the hole, the spring 6 is supported between the baffle ring 7 and the spring seat 5, the outer side of the spring seat 5 is sealed with a binding surface of a motor end cover 4 through an O-shaped ring 3, a round hole through which a motor connecting shaft can pass is arranged in the center of the spring seat 5, the spring seat 5 is embedded on a sealing cover 9, and a seal is arranged between the spring seat 5 and the sealing cover 9, the sealing cover 9 and the bearing seat 10 are fixed on a speed reducer high-speed end shell 13 through screws.

The inboard of bearing frame 10 lower part is provided with the cell body that is used for installing bearing 11, and the inboard of bearing frame 10 upper portion is provided with step-like cell body, oil blanket 8 set up the most inboard at step-like cell body, fender ring 7 card in step department.

A seal is provided between the bearing block 10 and the housing 13 at the high speed end of the reducer.

The outer side of a reducer spring seat 5 is sealed with an end cover binding face of a motor 1 through an O-shaped ring 3, four springs 6 are uniformly distributed in a spring seat hole along the circumferential direction, the springs 6 are supported through a retaining ring 7, a certain sliding gap is formed between the retaining ring 7 and an oil seal 8, when the pressure of a high-speed box body of the reducer expands, the oil seal 8 is extruded to slide to a certain degree and slowly release gas, and when the pressure is reduced to balance the internal pressure and the external pressure, the oil seal is restored to the original position under the action of the springs; because the vibration is large during cutting, and the motor is in a long cantilever state, the connection rigidity is easy to be insufficient, and a gap is formed between the motor end cover and the end face of the reducer spring seat, so that water inflow is caused. At this moment, under the effect of spring, the spring holder can keep laminating with the motor is connected to realize outside waterproof effect.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims

1. The utility model provides a high-speed end pressure seal buffer gear of continuous miner cutting reducer which characterized in that: comprises a bearing seat (10) arranged on a high-speed end shell (13) of a speed reducer, a bearing (11) is arranged in the bearing seat (10), one end of an output shaft (12) is fixed in the bearing (11), a baffle ring (7) and a spring seat (5) are sleeved on the end part of the output shaft (12), an oil seal (8) is arranged below the baffle ring (7), a sliding gap is arranged between the baffle ring (7) and the oil seal (8), the oil seal (8) is positioned between the output shaft (12) and the bearing seat (10), a plurality of holes are uniformly distributed on the inner side of the spring seat (5) along the circumferential direction, a spring (6) is arranged in each hole, the spring (6) is supported between the baffle ring (7) and the spring seat (5), the outer side of the spring seat (5) is sealed with a binding surface of a motor end cover (4) through an O-shaped ring (3), a round hole through which a motor connecting shaft can pass is arranged at the center of the spring seat (5), the spring seat (5) is inlaid on a sealing cover (9), a seal is arranged between the spring seat (5) and the seal cover (9), and the seal cover (9) and the bearing seat (10) are fixed on a high-speed end shell (13) of the speed reducer through screws.

2. The high-speed end pressure sealing buffer mechanism of the cutting reducer of the continuous miner according to claim 1, characterized in that: the bearing seat is characterized in that a groove body used for installing a bearing (11) is arranged on the inner side of the lower portion of the bearing seat (10), a step-shaped groove body is arranged on the inner side of the upper portion of the bearing seat (10), the oil seal (8) is arranged on the innermost side of the step-shaped groove body, and the baffle ring (7) is clamped at a step.

3. The high-speed end pressure sealing buffer mechanism of the cutting reducer of the continuous miner according to claim 1, characterized in that: and a seal is arranged between the bearing seat (10) and the high-speed end shell (13) of the speed reducer.

4. The high-speed end pressure sealing buffer mechanism of the cutting reducer of the continuous miner according to claim 1, characterized in that: the number of the holes distributed along the circumferential direction on the inner side of the spring seat (5) is 4.