CN216407517U - Special bearing press-fitting device for cantilever pump - Google Patents

Abstract

The utility model discloses a special bearing press-mounting device for a cantilever pump, which comprises a pump shaft, wherein a convex shoulder is arranged at the right end of the pump shaft, a pressure plate and a bearing are arranged on the outer side of the pump shaft, the pressure plate is arranged on the left side of the bearing, a shell is arranged on the outer side of the pressure plate and the bearing, a fixed base plate is arranged on the left side of the shell, shaft penetrating holes are formed in the inner sides of the pressure plate and the fixed base plate, four short bolts are uniformly arranged on the fixed base plate, and four long bolt jackscrews are uniformly arranged on the inner sides of the short bolts. According to the utility model, by utilizing the working principle of the four-pull-rod puller and screwing four symmetrical long bolt jackscrews on the fixed base plate, the bearing is uniformly pushed to move forwards along the axial direction of the pump shaft until the bearing is tightly attached to the convex shoulder of the pump shaft, and the installation is finished.

Description

Special bearing press-fitting device for cantilever pump

Technical Field

The utility model relates to the field of special mounting tools for bearings, in particular to a special bearing press-mounting device for a cantilever pump.

Background

The bearing and the pump shaft are in transition fit, and have certain tightening force. The current installation method of the cantilever type water pump bearing is as follows: heating the bearing inner ring to a certain temperature to expand the inner diameter of the bearing inner ring, sleeving the bearing inner ring into the pump shaft, and knocking the bearing inner ring by using a hand hammer and a copper bar to enable the bearing inner ring to move along the shaft and to be close to a convex shoulder of the pump shaft. The mounting mode has the defects of uneven bearing stress, easy deflection, time and labor consumption, easy damage to a bearing body and the like. Therefore, a more convenient, fast, labor-saving, safe and reliable installation method is needed.

In the prior art, for the installation of the cantilever type water pump bearing, the traditional mode of installing the cantilever type water pump bearing is lagged behind, wastes time and labor, and the bearing is very easy to damage. The traditional installation mode is complex, time-consuming, labor-consuming, uneven in bearing stress and easy to cause damage to the bearing body.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art, and provides a special bearing press-fitting device for a cantilever pump.

In order to achieve the purpose, the utility model adopts the following technical scheme: cantilever pump special bearing pressure equipment ware, including the pump shaft, the pump shaft right-hand member is provided with the convex shoulder, the pump shaft outside is provided with pressure disk, bearing, the pressure disk is in the left side of bearing, pressure disk, the bearing outside are provided with the shell, the shell left side is provided with fixed basal disc, pressure disk, fixed basal disc inboard all are provided with wears the shaft hole, evenly be provided with four short bolts on the fixed basal disc, fixed basal disc and shell pass through short bolt fastening together, the short bolt inboard evenly is provided with four long bolt jackscrews, fixed basal disc and pressure disk pass through the long bolt jackscrew fastening together, fixed basal disc, pressure disk, bearing and pump shaft mutual slip.

As a further description of the above technical solution:

a plurality of balls are uniformly arranged in the bearing.

As a further description of the above technical solution:

four top holes are uniformly formed in one side of the pressure plate and are formed in the outer side of the shaft penetrating hole.

As a further description of the above technical solution:

four screw holes are symmetrically arranged on the end face of the shell.

As a further description of the above technical solution:

the fixed base plate is evenly provided with four screw thread bolt holes, the screw thread bolt holes are arranged on the outer side of the shaft penetrating hole, two observation holes are symmetrically formed in two ends of each screw thread bolt hole, four unthreaded holes are evenly formed in the outer sides of the observation holes, and the unthreaded holes penetrate through the fixed base plate.

The utility model has the following beneficial effects:

1. according to the utility model, by utilizing the working principle of the four-pull-rod puller, the bearings are uniformly pushed to axially advance along the pump shaft by screwing four symmetrical long bolt jackscrews on the fixed base plate until the bearings are tightly close to the convex shoulder of the pump shaft, so that the installation is finished.

2. According to the installation method of the device, the overhaul time can be greatly shortened, the working efficiency is improved, the labor intensity is obviously reduced, the installation safety and reliability are improved, the damage of the bearing during installation is avoided, and the service life of the device is prolonged.

Drawings

FIG. 1 is a sectional view of a special bearing press-fitting device for a cantilever pump according to the present invention;

FIG. 2 is a schematic structural diagram of a bearing chamber housing of the pressure mounting device for a bearing dedicated for a cantilever pump according to the present invention;

FIG. 3 is a schematic structural diagram of a fixed base plate of the pressure mounting device for a bearing dedicated for a cantilever pump according to the present invention;

fig. 4 is a schematic structural diagram of a pressure plate of the special bearing press-fitting device for the cantilever pump provided by the utility model.

Illustration of the drawings:

1. a pump shaft; 101. a shaft hole is penetrated; 2. a bearing; 201. a ball bearing; 3. a platen; 301. a top hole; 4. fixing the basal disc; 401. an observation hole; 5. long bolt jackscrews; 501. a threaded bolt hole; 6. a short bolt; 601. a light hole; 7. a housing; 701. and (4) screw holes.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-4, one embodiment of the present invention is provided: a bearing press-mounting device special for a cantilever pump comprises a pump shaft 1, wherein a convex shoulder is arranged at the right end of the pump shaft 1 and is used for four symmetrical long bolt jackscrews 5 on a fixed base disc to uniformly push a bearing 2 to move forward along the axial direction of the pump shaft 1 and tightly abut against the bearing, a pressure disc 3 and the bearing 2 are arranged on the outer side of the pump shaft 1, a shell 7 is arranged on the outer sides of the pressure disc 3 and the bearing 2, the fixed base disc 4 is fixed by the shell 7, the fixed base disc 4 is arranged on the left side of the shell 7, shaft penetrating holes 101 are formed in the inner sides of the pressure disc 3 and the fixed base disc 4, the pump shaft 1, the bearing 2, the pressure disc 3 and the fixed base disc 4 are sleeved together by the shaft penetrating holes 101, four short bolts 6 are uniformly arranged on the fixed base disc 4, the fixed base disc 4 and the shell 7 are fixed together through the short bolts 6, the four long bolt jackscrews 5 are uniformly arranged on the inner sides of the short bolts 6, the fixed base discs 4 and 3 are fixed together through the long bolt jackscrews 5, the fixed base plate 4, the pressure plate 3, the bearing 2 and the pump shaft 1 slide mutually, and the pressure plate 3, the fixed base plate 4, the short bolt 6 and the long bolt jackscrew 5 are all made of carbon steel.

A plurality of balls 201 are uniformly arranged in the bearing 2, four top holes 301 are uniformly arranged on one side of the pressure plate 3, the top holes 301 enable the long bolt jackscrews 5 to be abutted to push the pressure plate 3 and the bearing 2 to advance together, the top holes 301 are arranged on the outer side of the shaft penetrating hole 101, four screw holes 701 are symmetrically arranged on the end surface of the shell 7, the screw holes 701 are used for fixing the base plate 4 firmly, four screw thread bolt holes 501 are uniformly arranged on the fixing base plate 4, the long bolt jackscrews 5 penetrate through the screw thread bolt holes 501, the screw thread bolt holes 501 are arranged on the outer side of the shaft penetrating hole 101, two observation holes 401 are symmetrically arranged at two ends of the screw thread bolt holes 501, the advancing position of the pressure plate 3 can be observed in real time through the observation holes 401 on the fixing base plate 4 in the installation process, four light holes 601 are uniformly arranged on the outer side of the observation holes 401, the light holes 601 enable the short bolts 6 to penetrate through the inside and are screwed into the screw holes 701 and fixed with the shell 7 together, the optical hole 601 penetrates the fixed base 4.

The working principle is as follows: the diameter of the through shaft hole 101 of the fixed base plate 4 and the pressure plate 3 is one millimeter to three millimeters larger than the diameter of the pump shaft 1. Firstly, when in installation, the inner ring of a bearing 2 is slightly heated and sleeved into a pump shaft 1, then a pressure plate 3 and a fixed base plate 4 are respectively sleeved into the pump shaft 1, then four long bolt jackscrews 5 are screwed into screw thread bolt holes 501 of the fixed base plate 4, the end heads of the long bolt jackscrews are inserted into four top holes 301 of the pressure plate 3, then four short bolts 6 pass through four smooth holes 601 of the fixed base plate 4 and are screwed into holes of an end cover of a shell 7 of a cantilever pump, so that the fixed base plate 4 and the shell 7 are fastened together, then the four long bolt jackscrews 5 on one side of the fixed base plate 4 uniformly push the pressure plate 3 and the bearing 2 to advance along the direction of the pump shaft 1 until the bearing 2 is tightly close to a convex shoulder of the pump shaft 1, namely, in the installation process, the advancing position of the pressure plate 3 can be observed in real time through observation holes 401 on the fixed base plate 4, the device utilizes the working principle of a four-pull rod horse puller, the mounting method can greatly shorten the overhaul time, improve the working efficiency, obviously reduce the labor intensity, simultaneously improve the safety and the reliability of mounting, avoid the damage of the bearing 2 during mounting, prolong the service life of the device, use the device during mounting, shorten the mounting time from twenty to thirty minutes in the past to less than ten minutes, and have high practicability because all parts are not damaged during mounting.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the utility model.

Claims (5)

1. Cantilever pump special bearing pressure equipment ware, including pump shaft (1), its characterized in that: a convex shoulder is arranged at the right end of the pump shaft (1), a pressure plate (3) and a bearing (2) are arranged at the outer side of the pump shaft (1), the pressure plate (3) is arranged on the left side of the bearing (2), the outer side of the pressure plate (3) and the bearing (2) is provided with a shell (7), a fixed base plate (4) is arranged on the left side of the shell (7), shaft penetrating holes (101) are formed in the inner sides of the pressure plate (3) and the fixed base plate (4), four short bolts (6) are uniformly arranged on the fixed base plate (4), the fixed base plate (4) and the shell (7) are fixed together through the short bolts (6), four long bolt jackscrews (5) are uniformly arranged on the inner side of the short bolt (6), the fixed base plate (4) and the pressure plate (3) are fixed together through a long bolt jackscrew (5), the fixed base plate (4), the pressure plate (3), the bearing (2) and the pump shaft (1) slide mutually.

2. The cantilever pump dedicated bearing press-fit device according to claim 1, wherein: a plurality of balls (201) are uniformly arranged in the bearing (2).

3. The cantilever pump dedicated bearing press-fit device according to claim 1, wherein: four top holes (301) are uniformly formed in one side of the pressure plate (3), and the top holes (301) are formed in the outer side of the shaft penetrating hole (101).

4. The cantilever pump dedicated bearing press-fit device according to claim 1, wherein: the end face of the shell (7) is symmetrically provided with four screw holes (701).

5. The cantilever pump dedicated bearing press-fit device according to claim 1, wherein: evenly be provided with four screw thread bolt holes (501) on fixed basal disc (4), screw thread bolt hole (501) are in wear axle hole (101) outside, screw thread bolt hole (501) both ends symmetry is provided with two observation holes (401), observe hole (401) outside and evenly be provided with four unthreaded hole (601), unthreaded hole (601) run through in fixed basal disc (4).

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