CN211820677U

CN211820677U - High-speed shaft framework seal of diaphragm pump speed reducer

Info

Publication number: CN211820677U
Application number: CN201921719521.7U
Authority: CN
Inventors: 刘云春; 李剑锋; 赵增佳; 马波
Original assignee: Yunnan Dahongshan Pipeline Co Ltd
Current assignee: Yunnan Dahongshan Pipeline Co Ltd
Priority date: 2019-10-14
Filing date: 2019-10-14
Publication date: 2020-10-30
Anticipated expiration: 2029-10-14

Abstract

The utility model relates to a diaphragm pump speed reducer high-speed shaft skeleton is sealed, including reducer shaft and casing, its characterized in that, install skeleton seal I, skeleton seal II and clamp plate on the reducer shaft in proper order, skeleton seal I and skeleton seal II opening are relative, and skeleton seal I is equipped with terminal surface I and skeleton seal I, and terminal surface I contacts with lubricating oil, and skeleton seal II is equipped with terminal surface II and skeleton seal II, skeleton seal I and skeleton seal II laminate, terminal surface II laminate clamp plate; the reducer shaft, the framework seal I and the framework seal II are all installed in the casing, and the pressing plate is fixed on the casing through bolts. The utility model discloses diaphragm pump speed reducer high-speed shaft skeleton is sealed can improve the speed reducer leakproofness, avoids the speed reducer seepage to leak lubricating oil, oil level unstability to reduction in production cost is more convenient for to the field management of equipment.

Description

High-speed shaft framework seal of diaphragm pump speed reducer

Technical Field

The utility model relates to a mining pipeline transportation diaphragm pump speed reducer field specifically is a diaphragm pump speed reducer high-speed shaft skeleton is sealed.

Background

The framework seal is also called framework oil seal, the framework oil seal is a typical representative of the oil seal, and the oil seal in general is the framework oil seal. The oil seal generally serves to isolate the components to be lubricated from the external environment, so as not to allow the lubricating oil to leak. The framework acts as a reinforcement for the steel bars inside the concrete member and allows the oil seal to maintain shape and tension. Prevent external dust, impurities and the like from entering the interior of the machine.

At present, the transportation of solid materials is developed by long-distance pipeline transportation, namely, solid materials such as ore, coal and the like are ground into slurry and transported to a destination through a long-distance pipeline. In long-term practice, the diaphragm pump is widely applied to long-distance pipelines, and plays an important role in pipeline operation as power equipment of a long-distance ore pulp pipeline conveying system, and the stability of the diaphragm pump determines the safe and efficient operation of the pipelines, so that the stability of the diaphragm pump system needs to be ensured.

Diaphragm pump that uses on most present ore pulp pipelines, in power transmission process, use the speed reducer to make the speed reduction transmission between driving power spare and the work piece, under the high-speed operation condition, the skeleton sealing member of high-speed shaft end side is under operation and the friction of a period of time, wearing and tearing of different degrees can appear, the lubricating oil seepage that leads to equipment comes out, the defect of lubricating oil then can cause because of the insufficient mechanical equipment part damage that leads to of lubrication, reduce equipment life, can not in time maintain equipment, the safety of pipeline has been influenced, stable and operation.

Fig. 1 is a schematic diagram of a structure of a conventional bidirectional back-to-back oil seal, in which the conventional bidirectional oil seal adopts a back-to-back installation mode of two single oil seals, and a sealing opening of a framework is made of a soft material and is in contact with high-temperature lubricating oil, so that the abrasion of the sealing opening of the framework is caused, and the service efficiency and the service time are influenced.

Disclosure of Invention

The utility model provides a technical problem that solve provides a diaphragm pump speed reducer high-speed shaft skeleton is sealed, can improve the speed reducer leakproofness, avoids the speed reducer seepage to leak lubricating oil, oil level unstability to reduction in production cost, increase of service life is more convenient for to the field management of equipment.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model relates to a diaphragm pump speed reducer high-speed shaft skeleton is sealed, including reducer shaft and casing, its characterized in that, install skeleton seal I, skeleton seal II and clamp plate on the reducer shaft in proper order, skeleton seal I and skeleton seal II opening are relative, and skeleton seal I is equipped with terminal surface I and skeleton seal I, and terminal surface I contacts with lubricating oil, and skeleton seal II is equipped with terminal surface II and skeleton seal II, skeleton seal I and skeleton seal II laminate, terminal surface II laminate clamp plate; the reducer shaft, the framework seal I and the framework seal II are all installed in the casing, and the pressing plate is fixed on the casing through bolts.

Preferably, the framework seal I and the framework seal II operate under the conditions that the working condition environment temperature is not lower than 40 ℃ and the operating temperature is 40-55 ℃.

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

the utility model has reasonable structure design, the installed oil seal is operated under the conditions that the working condition environment temperature is not lower than 40 ℃ and the operation temperature is 40-55 ℃; two framework sealing ports are used for mounting in a mouth-to-mouth mode, so that the service life can be prolonged to 12 months, which is higher than that of the prior art; after being installed and used, the testing effect is good, and the phenomenon of oil leakage of the high-speed shaft of the speed reducer can be effectively restrained; can reduce because of the sealed mouthful production burr of skeleton or impaired wound lead to airtight not tight in the operation through the change of mounting means, simultaneously, use two skeleton sealings can be comparatively convenient adjustment oil blanket spring, solve because of the spring holds the power undersize tightly, the radial pressure undersize that leads to can not effectual sealed problem of living lubricating oil.

By improving the prior art, the problem that the mechanical equipment is not lubricated properly and the equipment is damaged due to leakage in the use process of the high-speed shaft skeleton seal of the high-pressure ore pulp pipeline membrane pump speed reducer is solved, the service life is prolonged, the leakage of lubricating oil of the high-pressure equipment is avoided, and the use efficiency of the equipment is improved; through the utility model discloses an improve, solved the sealed service life of skeleton and not reached the asynchronous problem of annual overhaul term, improve equipment availability factor reduces cost of maintenance's purpose.

Drawings

Fig. 1 is a schematic diagram of a conventional bidirectional back-to-back oil seal structure.

Fig. 2 is a schematic view of the structure of the utility model in use.

Fig. 3 is a structural schematic diagram of the framework seal I and the framework seal II in a use state.

Wherein: 1-speed reducer shaft, 2-framework seal I, 3-framework seal II, 4-lubricating oil, 5-pressing plate, 6-machine shell, 7-end face I, 8-end face II, 9-framework seal opening I and 10-framework seal opening II.

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.

Fig. 2-3 disclose a high-speed shaft skeleton seal of a diaphragm pump speed reducer, which comprises a speed reducer shaft 1 and a casing 6, and is characterized in that a skeleton seal I2, a skeleton seal II3 and a pressing plate 5 are sequentially installed on the speed reducer shaft 1, the skeleton seal I2 and the skeleton seal II3 have opposite openings, the skeleton seal I2 is provided with an end face I7, the end face I7 is in contact with lubricating oil 4, the skeleton seal I2 is provided with a skeleton seal opening I9, the skeleton seal II3 is provided with a skeleton seal opening II10, the skeleton seal opening I9 is attached to the skeleton seal opening II10, the skeleton seal II3 is provided with an end face II8, and the end face II8 is attached to the pressing plate 5; the speed reducer shaft 1, the framework seal I2 and the framework seal II3 are all installed in the machine shell 6, and the pressing plate 5 is fixed on the machine shell 6 through bolts. The framework seal I2 and the framework seal II3 are operated under the conditions that the working condition ambient temperature is not lower than 40 ℃ and the operating temperature is 40-55 ℃.

Before installation, the framework seal is checked, and whether the framework seal port, the spring quality, the radial pressure and the like meet the standards is checked; measuring the wear condition of a high-speed shaft of the speed reducer, wiping the high-speed shaft clean without foreign matters, keeping the high-speed shaft smooth, and keeping the data measured by the high-speed shaft; the mounting method in the original design is changed into a double-seal mounting mode that the framework sealing port is embedded into the mounting position inwards, the framework sealing port is oppositely mounted and embedded into the bottommost part, and then the framework sealing port is pressed by a pressing plate; in the installation process, the framework sealing port is prevented from being damaged, and an oil seal spring is adjusted; and respectively recording whether leakage conditions exist in the period of 12 months after the installation and operation are started, comparing and analyzing the leakage condition measurement and calculation results and the leakage data of the original installation mode to determine that the skeleton seal with serious defects exists, and providing early warning to guide maintenance personnel to regularly replace the skeleton seal with the defects.

The working principle is as follows: the sealed single sealing of skeleton of installing is changed into two skeleton sealings, and the sealed mouthful of skeleton of former installation is inwards changed into two skeleton sealed mouthful relative, reduces because of the sealed lip of skeleton produces burr or impaired wound leads to airtight not tight in the operation, simultaneously, adjustment oil blanket spring that can be comparatively convenient, solves because of the spring holds the power undersize tightly, and the radial pressure undersize that leads to can not effectual sealed live lubricating oil.

The installed oil seal is operated under the conditions that the working environment temperature exceeds 40 ℃ and the operating temperature is 40-55 ℃. The use period can be prolonged to 12 months by using two frameworks for sealing installation, which is higher than the prior art. Through installation and use, the test effect is good, can effectively restrain the phenomenon of speed reducer high-speed shaft oil leakage. Can reduce because of the sealed mouthful production burr of skeleton or impaired wound lead to airtight not tight in the operation through the change of mounting means, simultaneously, use two estimation seal can be comparatively convenient adjustment oil blanket springs, solve because of the spring holds the power undersize tightly, the radial pressure undersize that leads to can not effectual sealed problem of living lubricating oil.

Through the improvement to prior art, solved present high-pressure ore pulp pipeline membrane pump speed reducer high-speed shaft skeleton seal in the use, because of the seepage leads to the not in place damage to equipment of mechanical equipment lubrication, improved life, avoided the high-pressure equipment lubricating oil seepage to improve equipment availability factor. Through the utility model discloses an improve, solved the sealed inspection of skeleton, changed cycle and overhauld asynchronous problem with the year, improve equipment availability factor reduces cost of maintenance's purpose.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that 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

1. The framework seal of the high-speed shaft of the speed reducer of the diaphragm pump comprises a speed reducer shaft (1) and a casing (6), and is characterized in that a framework seal I (2), a framework seal II (3) and a pressing plate (5) are sequentially installed on the speed reducer shaft (1), the framework seal I (2) and the framework seal II (3) are opposite in opening, the framework seal I (2) is provided with an end face I (7) and a framework seal opening I (9), the end face I (7) is in contact with lubricating oil (4), the framework seal II (3) is provided with an end face II (8) and a framework seal opening II (10), the framework seal opening I (9) is attached to the framework seal opening II (10), and the end face II (8) is attached to the pressing plate (5); the speed reducer shaft (1), the framework seal I (2) and the framework seal II (3) are all installed in the casing (6), and the pressing plate (5) is fixed on the casing (6) through bolts.

2. The diaphragm pump reducer high speed shaft skeleton seal of claim 1, wherein the skeleton seal I (2) is a skeleton seal I (2) having a use temperature of 40 to 55 degrees; the framework seal II (3) is the framework seal II (3) with the use temperature of 40-55 degrees.