CN203592455U

CN203592455U - Device used for replacing vertical shaft equipment bearing

Info

Publication number: CN203592455U
Application number: CN201320693524.4U
Authority: CN
Inventors: 戴国平; 孙刚
Original assignee: Shanghai Meishan Iron and Steel Co Ltd; Nanjing Meishan Metallurgy Development Co Ltd
Current assignee: Baowu Equipment Intelligent Technology Co Ltd
Priority date: 2013-11-06
Filing date: 2013-11-06
Publication date: 2014-05-14
Anticipated expiration: 2023-11-06

Abstract

The utility model discloses a device used for replacing a vertical shaft equipment bearing. The device comprises a locking shaft device and a top beam. The locking shaft device is cylindrical, and at least three screw holes are uniformly formed in the periphery of the locking shaft device. A locking screw rod is connected with a locking nut in a rotation mode. Lifting lugs are symmetrically arranged on the two sides of the top of the locking shaft device. Each lifting lug is provided with at least two through holes longitudinally, and the top beam penetrates through the through holes in the lifting lugs. Planes are arranged at the two ends of the top beam and on the same horizontal surface and are parallel with the axis direction of the top beam. The device is simple in structure and reasonable in design and can be matched with a jack to enable a pump shaft to be lifted on a pump body within the gap range of the upper limit and the lower limit, and therefore fast disassembly of nuts of the pump shaft without tools can be achieved, the work efficiency is greatly improved, equipment damage possibly caused by disassembling the pump shaft with large force is avoided, the expense is saved, and the maintenance cost is reduced.

Description

A kind of for changing the device of vertical pivot equipment bearing

Technical field

The utility model belongs to the auxiliary dismantling technology of equipment field, especially relates to a kind of for changing the device of vertical pivot equipment bearing.

Background technology

There are a considerable amount of on-line operation long-shaft pumps in Mei Gang company.Due to equipment environment reason of living in, most long-shaft pumps are in negative ground face-pumping room, between pump house, moist temperature can reach 50 degree left and right, also have 30 more and spend at ordinary times summer, or the outdoor place of being exposed to the sun, drenching with rain, there is again the reason of part of appliance own, when after long-shaft pump operation certain hour, the pump housing always shakes bigger than normal, and changing long-shaft pump bearing is mainly to overhaul one of content.At present, in the time of each replacing long-shaft pump bearing, all need loop wheel machine to coordinate, and need to knock flat mouth chisel compared with sledge hammer and transmit power to pump shaft nut, make spindle jam nut little by little loosening, disassemble (because long, thicker pump shaft, pump shaft lowermost end impeller and miscellaneous part produce larger deadweight) with the state of requiring great effort very much.In unloading process, not only easily damage and regulate, lock and cap, and very easily destroy axle journal closely-pitched place, repeatedly knock in addition axle journal and can make axle journal distortion, long pump shaft (general 5-7 meters) also can produce shake under the knocking of hammer, thereby makes the rubber bushing damage contacting with pump shaft in the pump housing.Can find out, current dismounting mode overhauls that length consuming time, speed are slow, inefficiency, equipment loss are serious.

Summary of the invention

For the problems referred to above, we are according to providing all kinds of long-shaft pump related datas to all kinds of long-shaft pump pump shaft footpaths and length surveying and mapping data and producer between turn(a)round for many years, utilize pump shaft lowermost end impeller in the pump housing, to have this feature of certain adjustable clearance, through field practice repeatedly, invent a kind of special purpose device of changing vertical pivot equipment bearing, improved the operating efficiency of changing pump shaft bearing.

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

A kind of for changing the device of vertical pivot equipment bearing, comprise lock shaft device and back timber, described lock shaft device is that cylindrical shape, its periphery are evenly distributed with at least three screws, on tie down screw, be connected with lock nut, lock shaft device top bilateral symmetry is provided with hanger, is vertically arranged with at least two through holes on each hanger, and described back timber is through the through hole in hanger, described back timber two ends all have plane, and described plane is in same level and parallel with back timber axis direction.

As a kind of preferred version of the present utility model, described hanger and lock shaft device are structure as a whole.

As a kind of improvement project of the present utility model, described tie down screw top has chamfered.

Compared with prior art, the utility model is simple in structure, reasonable in design, match with jack and make the pump shaft can lifting in the pump housing upper limit and lower limit interstice coverage, thereby realize the free-hand quick-detachment of pump shaft nut, not only greatly improved operating efficiency, and avoided dismantling energetically the equipment damage that pump shaft may cause, reduce expenses, reduce maintenance cost.Longitudinal hole setting in hanger, makes the distance between back timber and lock shaft device regulate with actual conditions, applied widely.

Accompanying drawing explanation

Fig. 1 for the utility model provide for changing the application of installation schematic diagram of vertical pivot equipment bearing;

Fig. 2 is beam structure schematic diagram.

Reference numerals list:

1-lock shaft device, 11-tie down screw, 12-hanger, 13-through hole, 2-back timber, 21-plane, 3-supporting seat, 4-pump shaft, 5-jack.

The specific embodiment

Below in conjunction with the drawings and specific embodiments, further illustrate the utility model, should understand the following specific embodiment and only be not used in restriction scope of the present utility model for the utility model is described.It should be noted that, word 'fornt', 'back', " left side ", " right side ", "up" and "down" that use is described below refer to the direction in accompanying drawing, and word " interior " and " outward " refer to respectively the direction towards or away from specific features geometric center.

As shown in Figure 1, a kind of for changing the device of vertical pivot equipment bearing, comprise lock shaft device 1 and back timber 2, described lock shaft device 1 is that cylindrical shape, its periphery are evenly distributed with at least three screws, screw is arranged on the radial direction of lock shaft device 1, and lock shaft device 1 internal diameter should equal or be slightly larger than pump shaft 4 external diameters.Tie down screw 11 is installed in described screw, lock shaft device 1 top bilateral symmetry is provided with hanger 12, on each hanger 12, be vertically arranged with at least two through holes 13, described back timber 2 is through the through hole 13 in hanger 12, as shown in Figure 1,2 via heights that back timber 2 passes are identical, therefore the basic maintenance level of back timber 2.As shown in Figure 2, back timber 2 two ends all have plane 21, and described plane 21 is in same level and parallel with back timber 2 axis directions.Described back timber 2 is preferably cylindrical.Because hanger 12 will bear pump shaft weight, therefore in this device, between hanger 12 and lock shaft device 1, should there is good bonding strength, especially one-body molded as good take hanger 12 and lock shaft device 1, when technological process has in limited time, hanger 12 also can be welded on lock shaft device 1, with cost-saving.

At dismounting long-shaft pump motor, connection motor supporting base 3, expose in axle journal situation, utilize lock shaft device 4 to be inserted in pump shaft 4 appropriate locations, tighten tie down screw 11 with torque spanner, described tie down screw 11 tops preferably have chamfered, during with Anti-dismantling lock shaft device, tie down screw 11 is difficult to exit, and described top refers to tie down screw 11 one end by lock shaft device 1 axle center.Owing to being provided with through hole 13 on hanger 12, according to axle exposed length, different tonnage jack height are selected the through hole 13 of suitable height on hanger 12, back timber 2 is inserted in the through hole of hanger 12, make the plane 21 of back timber 2 down, on pump housing supporting seat 3, get appropriate location (having gusset place), put two jack 5, synchronously go up top jack 5 by suitable power, make pump shaft 4 rise to appropriate location, like this can easy removal axle nut without just knocking by hammer effort, even can with the hands dismantle axle nut, temporarily provision for disengagement after dismounting nut, pump shaft 4 is sunk to the bottom, dismounting round bearing oil box, remove to ground, stand up, knock bearing enclose from oil box back side circular hole (visible bearing) with red copper bar, make it to exit.While returning dress bearing, repair the wearing and tearing of bearing oil box, damaged part, thoroughly clean, remove casing impurity.From oil box front specific purpose tool, new bearing is pressed into oil box and puts in place.Bearing cleaning and oil box again, combination to the pump shaft that bearing and oil box are installed is applicable to position, installation shaft nut.Promote pump shaft 4 to applicable position with above-mentioned method for improving again, make pump shaft bottommost impeller in correct position, locking pump shaft nut, installs dustproof gland, pump housing shaft coupling, injects standard lubricating oil in right amount to oil box.

The disclosed technological means of the utility model scheme is not limited only to the disclosed technological means of above-mentioned embodiment, also comprises the technical scheme being made up of above technical characterictic.It should be pointed out that for those skilled in the art, not departing under the prerequisite of the utility model principle, can also make some improvements and modifications, these improvements and modifications are also considered as protection domain of the present utility model.

Claims

1. one kind for changing the device of vertical pivot equipment bearing, it is characterized in that: comprise lock shaft device and back timber, described lock shaft device is that cylindrical shape, its periphery are evenly distributed with at least three screws, on tie down screw, be connected with lock nut, lock shaft device top bilateral symmetry is provided with hanger, on each hanger, be vertically arranged with at least two through holes, described back timber is through the through hole in hanger, described back timber two ends all have plane, and described plane is in same level and parallel with back timber axis direction.

2. according to claim 1 for changing the device of vertical pivot equipment bearing, it is characterized in that: described hanger and lock shaft device are structure as a whole.

3. according to claim 1 and 2 for changing the device of vertical pivot equipment bearing, it is characterized in that: described tie down screw top has chamfered.