CN220145203U - Auxiliary device for centering adjustment of pump shaft system - Google Patents

Abstract

The utility model discloses a centering adjustment auxiliary device for a pump shaft system of a machine, which is used for centering a shafting of the machine pump and a motor, and comprises a machine pump device pre-centering assembly and a motor centering assembly; the machine pump equipment pre-centering component is arranged on a machine pump equipment rotating shaft and used for adjusting the parallel of a machine pump reference shaft and a motor foundation support plane, and comprises an extension shaft component, a rotating frame and a dial indicator component; the extension shaft assembly can be sleeved on a rotating shaft of the pump equipment, the rotating frame is arranged on the extension shaft assembly, and the dial indicator assembly is connected with the rotating frame; the motor centering assembly comprises a bottom plate connected with the bottom surface of the motor, a connecting frame is connected to the bottom plate, and an eye bolt is arranged on the connecting frame and matched with an eye on the top of the motor. The utility model has the advantages of facilitating the centering of the motor and the pump shaft system, reducing the labor intensity of the centering of the shaft system and improving the safety of the centering of the shaft system; simple structure, strong applicability, convenient operation and disassembly, high efficiency and safety.

Description

Auxiliary device for centering adjustment of pump shaft system

Technical Field

The utility model relates to the technical field of machine pump shaft centering, in particular to a machine pump shaft centering adjustment auxiliary device.

Background

In the chemical industry, during the initial installation and the installation process after overhaul of the pump equipment, centering and alignment work must be performed on the shaft system of the rotating equipment, so that the centering and deviation value of the shaft system is controlled within an allowable value range, the shaft system is not centered, the normal work of the rotating shaft, the bearing and other parts on the shaft is influenced, even vibration or damage of the whole machine set and a foundation is caused, and therefore, most of equipment needs to accurately measure the radial and axial errors of the coupler, and centering and alignment of the pump equipment and the motor coupler are one of important working links in the installation and overhaul process.

The common method for centering and aligning the shafting is that firstly, the machine pump equipment is fixedly installed, then a motor/diesel engine is installed, but the motor is not fixed, and then intermediate equipment such as a shaft coupling, an intermediate shaft and the like are respectively installed on a machine pump equipment rotating shaft and a motor rotating shaft. The dial indicator frame is fixed on the shaft extension pair wheel of the motor pump rotor, the dial indicator head contacts the outer circle of the coupling pair wheel of the motor rotor, the motor pair wheel is measured and adjusted by taking the motor pair wheel as a reference, namely, the motor and the motor pump are centered by adding an adjusting gasket under the supporting legs of the motor. As in chinese patent literature, patent number CN201721764849.1 entitled "a machine pump centering device" at 24/7/2018, the application includes: the bottom plate is provided with a mounting plane, and the mounting plane is used for bearing the motor and the water pump; the supporting piece is arranged at the side of the bottom plate and is welded on the side wall of the bottom plate perpendicular to the mounting plane; the supporting piece is provided with an adjusting threaded hole, and the axial direction of the adjusting threaded hole is parallel to the mounting plane; and the adjusting bolt is penetrated in the adjusting threaded hole, one end of the adjusting bolt abuts against the bottom foot of the motor, and the position of the motor on the bottom plate is adjusted by rotating the adjusting bolt.

The prior art lacks the auxiliary mechanism when adjusting motor and pump axle system, and the position lifting of motor is inconvenient, and levelness adjustment when the pump is fixed also is difficult to carry out.

The prior art mainly has the following defects:

1) After the machine pump equipment is repaired and reinstalled, the machine pump equipment rotating shaft is not in an original horizontal state any more, a new angle deviation is generated between the machine pump equipment rotating shaft and the motor rotating shaft, the difficulty of motor adjustment is increased, and even the situation that the foundation bolt cannot be assembled due to overlarge deviation between the motor foundation bolt hole and the foundation bolt occurs;

2) For a unit of an lengthened coupler (such as a universal coupler) with an intermediate shaft between a pump device and a motor, the centering and alignment work is heavy;

3) For a large-scale equipment unit, the motor is heavy, and the motor is very inconvenient to adjust;

4) The machine pump unit has smaller specification, the dial indicator can not rotate for one whole circle, the axial error on the horizontal plane of the shafting is difficult to adjust, and especially the axial error in the vertical direction can not be adjusted.

In the prior art, shafting centering and alignment work is carried out after a motor is in place, the thickness of a gasket additionally arranged under a motor support leg is required to be frequently adjusted in centering and alignment, the condition of larger centering deviation is even required to reinstall pump equipment or ream a motor foundation bolt hole, the workload is quite heavy and the efficiency is extremely low, in the motor centering and alignment process, maintenance personnel need to tilt a stick and knock a motor support leg by a large hammer to adjust the motor axis angle, the force is difficult to control in the adjustment process, the motor is large and small in the displacement process of adjustment, the motor support leg is knocked by the large hammer, the mechanical seal of the pump equipment is easily damaged by hammering and vibration, potential safety hazards exist for maintenance personnel, and the phenomenon that the maintenance personnel can knock fingers or smash fingers is avoided.

Disclosure of Invention

In order to overcome the defects in the prior art, the utility model provides the auxiliary device for centering adjustment of the pump shaft system, which is convenient for adjusting the position of a motor, improves the centering effect and reduces the labor intensity of centering the shaft system.

In order to achieve the above object, the present utility model adopts the following technical scheme.

An auxiliary device for centering and adjusting a pump shaft system is used for centering shafting of a pump and a motor and comprises a pump device pre-centering component and a motor centering component;

the machine pump equipment pre-centering assembly is arranged on a machine pump equipment rotating shaft and used for adjusting the parallel of a machine pump reference shaft and a motor foundation support plane and comprises an extension shaft assembly, a rotating frame and a dial indicator assembly; the extension shaft assembly can be sleeved on a rotating shaft of the pump equipment, the rotating frame is arranged on the extension shaft assembly, and the dial indicator assembly is connected with the rotating frame;

the motor centering assembly comprises a bottom plate connected with the bottom surface of the motor, a connecting frame is connected to the bottom plate, and an eye bolt is arranged on the connecting frame and matched with an eye on the top of the motor.

The machine pump preparation centering assembly is applied to a machine pump shafting, the calibration of the level and the angle of a rotating shaft of the machine pump equipment is completed, the position of the motor equipment is lifted and adjusted through the motor centering assembly, the centering of a motor and the machine pump shafting is facilitated, the labor intensity of shafting centering is reduced, and the safety of shafting centering is improved; simple structure, strong applicability, convenient operation and disassembly, high efficiency and safety.

Preferably, the extension shaft assembly comprises a pump pair wheel matched with the rotation shaft of the pump equipment, a stepped through hole is formed in the middle of the pump pair wheel, an assembly flange is arranged on the outer side of the pump pair wheel, a hollow shaft is arranged on one side of the assembly flange, which is opposite to the pump pair wheel, and the rotating frame is arranged on the hollow shaft. The dial indicator assembly is conveniently matched with the rotating shaft of the machine pump equipment in installation through preassembling the extension shaft assembly and the rotating frame, the extension shaft assembly achieves axial extension of the rotating shaft of the machine pump equipment, judgment of inclination of the rotating shaft of the machine pump equipment is more conveniently achieved, and preliminary centering of the machine pump equipment is facilitated.

Preferably, the rotating frame comprises a bearing seat connected with an extension shaft assembly, a rotating shaft is rotationally connected to the bearing seat, a rotating arm is arranged on the lower side of the rotating shaft, the rotating shaft is connected to the middle position of the rotating arm, two groups of level gauges are symmetrically arranged on the upper side of the rotating arm, and the dial indicator assembly is matched with the level gauges. Through the cooperation of radial arm and spirit level, can accomplish the horizontal calibration of machine pump equipment rotation axis all directions, accomplish the centering pre-calibration to machine pump equipment.

Preferably, the connecting frame comprises upright post assemblies connected with the bottom plate, the upright post assemblies are provided with two groups positioned on two sides of the motor, the upper ends of the two groups of upright post assemblies are connected with a hoisting cross beam in a bridging mode, and the lifting bolt is arranged at the middle position of the hoisting cross beam. Lifting of the lifting beam relative to the motor is achieved through the upright post assembly, and assembly of the lifting bolt and the motor is facilitated.

Preferably, the upright post component is fixedly connected with the lifting cross beam through a U-shaped bolt. The connection is convenient and the structure is reliable.

Preferably, the middle welding of hoist and mount crossbeam is equipped with the support axle sleeve, and eye bolt passes the support axle sleeve, is equipped with adjusting nut on the eye bolt, is equipped with thrust bearing between adjusting nut's downside and the upside of support axle sleeve. The thrust bearing can realize axial bearing and rotation between the adjusting nut and the supporting shaft sleeve, the adjusting nut can complete adjustment of the extending amount of the lower end of the lifting bolt, and the lifting bolt can be matched with motors of different height specifications conveniently.

Preferably, the bottom plate is provided with jackscrew assemblies positioned at two sides of the connecting frame, each jackscrew assembly comprises an L-shaped jackscrew, one side of the L-shaped jackscrew is fixed with the bottom plate through screws, the other side of the L-shaped jackscrew is provided with jackscrews, and jackscrew nuts are matched with the jackscrews. The jackscrew can adjust the extension length through screw adjustment in the jackscrew subassembly, can accomplish the auxiliary stay to the motor both ends through the jackscrew, improves the stability of motor lifting under the link effect.

Preferably, the bottom plate is in a strip shape, and a plurality of connecting holes for connecting with the L-shaped top pins are formed in the bottom plate. The position of the L-shaped top leg can be adjusted due to the arrangement of the plurality of connecting holes, and the position adjustment and the application of the jackscrew assembly are facilitated.

The beneficial effects of the utility model are as follows: the machine pump preparation centering component is applied to a machine pump shafting to finish the calibration of the level and the angle of a rotating shaft of machine pump equipment; the motor centering component lifts and adjusts the position of the motor equipment, so that the centering of the motor and a pump shaft system is facilitated; the labor intensity of shafting centering is reduced, and the safety of shafting centering is improved; simple structure, strong applicability, convenient operation and disassembly, high efficiency and safety.

Drawings

FIG. 1 is a schematic view of the structure of the present utility model in use of a pump priming centering assembly.

Fig. 2 is a schematic view of the structure of the present utility model in the application of the motor centering assembly.

FIG. 3 is a schematic view of the pump priming centering assembly of the present utility model.

Fig. 4 is a schematic view of the structure of the extension shaft assembly of the present utility model.

Fig. 5 is a schematic view of the internal structure of the rotating frame in the present utility model.

Fig. 6 is a schematic top view of a rotating gantry and radial arm of the present utility model.

Fig. 7 is a schematic representation of the structure of the present utility model when the motor centering assembly is mated with a motor.

Fig. 8 is a schematic view of the assembled structure of the connector, base plate and jackscrew assembly of the present utility model.

Fig. 9 is a schematic view of the motor centering assembly of the present utility model.

Fig. 10 is a schematic structural view of the connecting frame in the present utility model.

Fig. 11 is a top view of a base plate in accordance with the present utility model.

Fig. 12 is a schematic view of the structure of the jack module of the present utility model.

Fig. 13 is a top view of fig. 12.

In the figure: 1 base

2 machine pump

3 motor

Pre-centering assembly of 4-machine pump equipment

4-1 elongate shaft assembly

4-1-1 pump pair wheel

4-1-2 fixing screw

4-1-3 mounting flange

4-1-4 hollow shaft

4-1-5 socket head cap screw

5 rotating frame

5-1 bearing seat

5-2 rolling bearing

5-3 rotation shaft

5-4 radial arm

5-5 level

5-6 gasket

5-7 lock nut

6 percent meter assembly

7 motor centering assembly

7-1 bottom plate

7-2 jackscrew assembly

7-2-1L type top leg

7-2-2 jackscrew

7-2-3 jackscrew nut

7-2-4 inner hexagonal fixing screw

7-3 column assembly

7-3-1 upright post

7-3-2 support plate

7-3-3 foot plate

7-3-4 set screw

7-4 hoisting beam

7-5 support shaft sleeve

7-6 eye screw

7-7 thrust bearing

7-8 adjusting nut

7-9U type bolt

7-10 base plate fixing bolts.

Detailed Description

The utility model will be further described with reference to the drawings and specific examples.

Example 1

As shown in fig. 1 to 13, an auxiliary device for centering the shaft system of a pump is used for centering the shaft system of the pump and a motor and comprises a pre-centering assembly 4 of the pump equipment and a centering assembly 7 of the motor.

The machine pump equipment pre-centering component 4 is arranged on the rotating shaft of the machine pump 2 equipment and used for adjusting the parallel of the reference shaft and the ground leg supporting plane of the motor 3, and comprises the machine pump 2, an extension shaft component 4-1, a rotating frame 5 and a dial indicator component 6. The rotating frame is arranged on the extension shaft component, and the dial indicator component is connected with the rotating frame.

The extension shaft assembly 4-1 is sleeved on the rotary shaft extension of the machine pump 2, and the extension shaft assembly 4-1 comprises a machine pump pair wheel 4-1-1, a fixing screw 4-1-2, an assembly flange 4-1-3, a hollow shaft 4-1-4 and an inner hexagon screw 4-1-5.

The pump pair wheel 4-1-1 is a hollow cylinder (phi 90 multiplied by 80) with 5 steps of through holes in the middle, the aperture is phi 22mm, phi 32mm phi 35mm, phi 42mm and phi 50mm respectively, the method is suitable for 5 pump 2 rotating shaft diameters of different specifications, the depth of each step of the through holes is 15mm, 3M 12 threaded holes are uniformly formed in the largest through hole end of the pump pair wheel 4-1-1, 3M 12 fixing screws 4-1-2 are arranged in the threaded holes of the pump pair wheel 4-1-1, a boss is machined on the end face of the smallest through hole end of the pump pair wheel 4-1-1, the boss height is 5mm, the boss outer diameter tolerance zone of the pump pair wheel 4-1-1 is n6, 4 threaded holes are equidistantly formed in the end face of the boss outer ring of the pump pair wheel 4-1-1, the pump pair wheel 4-1-1 is arranged on the rotating shaft extension of the pump 2, the fixing screws 4-1-2 are screwed into the pump pair wheel 4-1-1 and firmly push against the threaded holes on the rotating shaft extension of the pump pair wheel 4-1-1, and the pump pair wheel 4-1 can be assembled on multiple pump devices with different specifications.

The assembly flange 4-1-3 is a disc with a circular groove on one side end face, the tolerance zone of the inner diameter of the groove is H7, at least 4 through holes are equidistantly arranged on the table top of the groove outer ring of the assembly flange 4-1-3, the number of the through holes on the end face of the assembly flange 4-1-3 corresponds to that of screw holes on the pump pair wheel 4-1-1 one by one, the hollow shaft 4-1-4 is welded on the end face of the other side of the assembly flange 4-1-3, the hollow shaft 4-1-4 is a hollow thick-wall circular tube, the hollow thick-wall circular tube is phi 45 multiplied by 5, the tolerance zone of the outer diameter of the hollow shaft 4-1-4 is H6, the hollow shaft 4-1-4 is connected with the pump pair wheel 4-1-1 into a whole through 4 hexagon socket head cap screws 4-1-5, and the boss of the pump pair wheel 4-1-3 is embedded into the groove on the end face of the assembly flange 4-1-3.

The rotating frame 5 is fixed below the hollow shaft 4-1-4 through a newspaper clip bolt and comprises a bearing seat 5-1, a rolling bearing 5-2, a rotating shaft 5-3, a rotating arm 5-4, a level meter 5-5, a gasket 5-6 and a locking nut 5-7. The bearing seat 5-1 is fixedly connected with the extension shaft component, the bearing seat 5-1 is of a structure with one end being closed and the other end being open, the closed end of the bearing seat 5-1 is provided with a mounting flange, the end face of the mounting flange of the bearing seat 5-1 is provided with a groove with a circular arc-shaped section (r=22.5 mm), the rolling bearing 5-2 is arranged in the bearing seat 5-1, 2 6000/C1 deep groove ball bearings are selected, the rolling bearing 5-2 is assembled on the rotating shaft 5-3, the rotating shaft 5-3 is a stepped shaft with one end being a phi 10 optical axis and the other end being an M8 external thread, the center of the rotating arm 5-4 is provided with a through hole, the threaded section of the rotating shaft 5-3 is sequentially sleeved with a locking nut 5-7 and a gasket 5-6, the threaded section of the rotating shaft 5-3 penetrates through the center hole of the rotating arm 5-4, the threaded section of the rotating shaft 5-3 is sleeved with the gasket 5-6 and the locking nut 5-7 again, and the level meter 5-5 is arranged in the center Kong Liangce of the rotating arm 5-4.

The dial indicator assembly 6 is adsorbed on the radial arm and comprises a magnetic gauge stand 6-1, a gauge stand 6-2 and a dial indicator 6-3. The meter frame 6-2 is fixedly connected to the magnetic meter seat 6-1, the dial indicator 6-3 is clamped on the meter frame 6-2, and the meter frame 6-2 can rotate freely.

The motor centering subassembly 7 is fixed in the metal base 1 of motor both sides on, has the link through bolted connection on the base, and the link includes: the lifting device comprises a bottom plate 7-1, a jackscrew assembly 7-2, a column assembly 7-3, a lifting beam 7-4, a supporting shaft sleeve 7-5, a lifting ring screw 7-6, a thrust bearing 7-7, an adjusting nut 7-8, a 7-9U-shaped bolt and a bottom plate fixing bolt 7-10.

The jackscrew assembly 7-2 is fixed on the bottom plate 7-1 through a bottom plate fixing bolt 7-10, and the jackscrew assembly 7-2 comprises an L-shaped jackpin 7-2-1, jackscrews 7-2-2, jackscrew nuts 7-2-3 and inner hexagon fixing screws 7-2-4. In the embodiment, the jackscrew 7-2-2 is a hexagon head thread sphere end screw with M12 multiplied by 1.25, 2 long round hole grooves are symmetrically arranged on the long side plate of the L-shaped jackscrew 7-2-1 along the long side axial direction, the distance between the long round hole grooves is 40mm, the inner hexagon fixing screw 7-2-4 penetrates through the long round hole of the long side plate of the L-shaped jackscrew 7-2-1, the L-shaped jackscrew 7-2-1 is fixedly connected to the bottom plate 7-1, a long round through hole is axially arranged on the central line of the short side plate of the L-shaped jackscrew 7-2-1 along the short side, the aperture phi 13mm, a through shallow groove is axially arranged on the central line of the short side plate of the L-shaped jackscrew 7-2-1 along the short side plate, the through shallow groove is 18mm, the through shallow groove on the short side plate of the L-shaped jackscrew 7-2-1 is concentric with the long round hole on the short side plate of the L-shaped jackscrew, the sphere end of the jackscrew 7-2-2 passes through the long round hole on the short side plate of the L-shaped jackscrew 7-1 and the long round hole on the short side plate of the L-shaped jackscrew 7-2-1, and the corresponding threaded nut is screwed into the corresponding threaded nut 7-2-7-1 on the short side plate 7-2-1.

The upright post assembly 7-3 is fixed on the bottom plate 7-1 through screws 7-3-4, the upright post assembly 7-3 comprises an upright post 7-3-1, a supporting plate 7-3-2, a foot plate 7-3-3 and fixing screws 7-3-4, in the embodiment, the upright post is a thick-wall round tube with phi 76.3x7, the foot plate 7-3-3 is welded at one end of the upright post 7-3-1, the foot plate 7-3-3 is an oblong steel plate, 2 through holes are symmetrically arranged along a long axis of the foot plate 7-3-3, the supporting plate 7-3-2 is welded at the other end of the upright post 7-3-1, 2 through holes are symmetrically arranged on the supporting plate 7-3-2, the projection of the center line of the 2 through holes on the supporting plate 7-3-2 is parallel to the center line of the 2 through holes on the foot plate 7-3-3, and the fixing screws 7-3-4 penetrate through the 2 through holes on the foot plate 7-3-3 to connect the upright post assembly 7-3 and the bottom plate 7-1.

The lifting beam 7-4 is a thick-wall short pipe, in the embodiment, a thick-wall round pipe with phi of 76.3 multiplied by 7, the lifting beam 7-4 is fixedly connected to the top of the upright post assembly 7-3 through a U-shaped bolt 7-9, a supporting shaft sleeve 7-5 is welded in the middle of the lifting beam 7-4, in the embodiment, a lifting ring screw 7-6 is provided with a thread M20, the lifting ring screw 7-6 is firstly screwed into an adjusting nut 7-8, the lifting ring screw 7-6 penetrates through the supporting shaft sleeve 7-5, the outer diameter of the lifting ring screw 7-6 is sleeved with a thrust bearing 7-7, the lifting ring screw 7-6 is screwed into an adjusting nut 7-8, and the lifting ring side of the lifting ring screw 7-6 faces downwards.

The bottom plate 7-1 is fixedly connected to the metal base 1 of the pump by a fixing bolt 7-10, the bottom plate 7-1 is a strip steel plate with a plurality of holes, 2 symmetrical threaded holes are arranged in the middle of the long axis of the plane of the bottom plate 7-1, 2 threaded holes on the plane of the bottom plate are used for fixedly connecting the upright post component 7-3,

2 oblong holes are symmetrically arranged on the outer sides of threaded holes on the long axis of the plane of the bottom plate 7-1, the center line of each oblong hole is perpendicular to the long axis of the plane of the bottom plate, the bottom plate fixing bolts 7-10 penetrate through the oblong holes on the bottom plate 7-1 and are screwed into threaded holes (or nuts) of the pump base 1, the bottom plate is fixedly connected to the pump base, a plurality of threaded holes which are arranged in a straight line are symmetrically arranged on the outer sides of the oblong holes on the plane of the bottom plate, the center line of the threaded holes which are arranged in a straight line on the plane of the bottom plate 7-1 is offset to be close to one side of the long edge and parallel to the long axis of the plane of the bottom plate, and the center distance of the threaded holes which are arranged in a straight line on the plane of the bottom plate 7-1 is 20mm.

The using method comprises the following steps:

the machine pump 2 equipment is placed on a machine pump metal base 1, a machine pump equipment pre-centering assembly 4 is sleeved and fixed on the rotary shaft extension of the machine pump 2, a rotary frame 5 is adjusted to the central position of the motor 3 ground support, the rotary frame 5 is fixed, the rotary shaft of the machine pump 2 is adjusted to the horizontal position of a level meter 5-5 on the rotary frame 5, a dial indicator assembly 6 is fixed on a rotating arm 5-4 of the rotary frame 5, the dial indicator 6-3 is beaten on a motor 3 ground support surface, fastening of a machine pump 2 mounting bolt is started, in the process of fastening the bolt, the rotating arm 5-4 is used for checking the deviation of a bolt hole on the motor 3 ground support surface from the central line of the machine pump 2, the fastening sequence and the fastening moment of the machine pump 2 mounting bolt are adjusted in real time, the deviation of the bolt hole on the motor 3 ground support surface from the machine pump 2 central line is controlled within an allowable range, after the machine pump 2 mounting bolt fastening is completed, the rotating arm 5-4 is used for measuring the height difference between the motor 3 ground support surface, and the motor 3 ground support surface is adjusted to be consistent by adding a spacer with standard thickness, namely, the motor 2 ground support surface and the machine pump 2 and the motor 2 ground support surface are in parallel to the axial direction of the machine pump 2 and the axial direction of the machine support shaft.

The machine pump equipment pre-centering component 4 is dismounted from the rotating shaft extension of the machine pump 2, the machine pump 2 and the motor 3 are coupled to the centering wheel, the motor 3 is placed on the motor ground supporting surface, the motor centering component 7 is fixed on the metal base 1 at two sides of the motor 3 along the axial direction of the motor 3, the dial indicator magnetic gauge stand 6-1 is fixed on the centering wheel of the rotating shaft extension of the machine pump 2, the gauge stand head contacts the outer circle of the rotating shaft extension centering wheel of the motor 3, the height difference between the rotating shaft of the machine pump 2 and the rotating shaft of the motor 3 in the vertical direction is measured, the motor 3 is hoisted by using the hanging ring screw 7-6, the thickness of a gasket on the motor 3 ground supporting surface is adjusted, the thickness of the gasket added or reduced on each motor 3 ground supporting surface is the same, the height difference between the rotating shaft of the machine pump 2 and the rotating shaft of the motor 3 in the vertical direction is adjusted to be within an allowable range, so that the radial and axial deviation between the rotating shaft of the machine pump 2 and the rotating shaft of the motor 3 in the vertical direction are all met, and the subsequent centering does not need to raise or reduce the height of the motor 3 again.

The radial and axial deviation of the horizontal direction of the rotating shaft of the pump 2 and the rotating shaft of the motor 3 only needs to be regulated, and the centering and alignment work of the rotating shaft of the pump 2 and the rotating shaft of the motor 3 can be realized by regulating the direction of the motor 3 in the horizontal direction through regulating the jackscrews 7-2-2 in the jackscrew assembly 7-2.

If only the motor 3 is maintained, and the gaskets above the ground supporting surface of the motor 3 are not disordered, only radial and axial deviation between the rotating shaft of the pump 2 and the rotating shaft of the motor 3 in the horizontal direction is required to be regulated.

Claims (8)

1. The auxiliary device for centering and adjusting the pump shaft system of the engine is characterized by being used for centering shaft systems of the engine pump and the motor and comprising a pre-centering component of the engine pump equipment and a motor centering component;

the machine pump equipment pre-centering assembly is arranged on a machine pump equipment rotating shaft and used for adjusting the parallel of a machine pump reference shaft and a motor foundation support plane and comprises an extension shaft assembly, a rotating frame and a dial indicator assembly; the extension shaft assembly can be sleeved on a rotating shaft of the pump equipment, the rotating frame is arranged on the extension shaft assembly, and the dial indicator assembly is connected with the rotating frame;

the motor centering assembly comprises a bottom plate connected with the bottom surface of the motor, a connecting frame is connected to the bottom plate, an eye bolt is arranged on the connecting frame, and the eye bolt is matched with an eye ring at the top of the motor.

2. The auxiliary device for centering and adjusting the pump shaft system according to claim 1, wherein the extension shaft assembly comprises a pump counter wheel matched with a rotating shaft of the pump equipment, a stepped through hole is formed in the middle of the pump counter wheel, an assembly flange is arranged on the outer side of the pump counter wheel, a hollow shaft is arranged on one side of the assembly flange, which is opposite to the pump counter wheel, and the rotating frame is arranged on the hollow shaft.

3. The auxiliary device for centering adjustment of a pump shaft system of a machine according to claim 1 or 2, wherein the rotating frame comprises a bearing seat connected with an extension shaft assembly, a rotating shaft is rotationally connected to the bearing seat, a rotating arm is arranged on the lower side of the rotating shaft, the rotating shaft is connected to the middle position of the rotating arm, two groups of level gauges are symmetrically arranged on the upper side of the rotating arm, and the dial indicator assembly is matched with the level gauges.

4. The auxiliary device for centering and adjusting the pump shaft system of claim 1, wherein the connecting frame comprises a column assembly connected with the bottom plate, the column assembly is provided with two groups positioned at two sides of the motor, the upper ends of the two groups of column assemblies are connected with a hoisting beam in a bridging manner, and the lifting bolt is arranged at the middle position of the hoisting beam.

5. The auxiliary device for centering and adjusting a pump shaft system according to claim 4, wherein the upright post assembly is fixedly connected with the lifting cross beam through a U-shaped bolt.

6. The auxiliary device for centering adjustment of a pump shaft system according to claim 4 or 5, wherein a supporting shaft sleeve is welded in the middle of the lifting beam, an eye bolt penetrates through the supporting shaft sleeve, an adjusting nut is arranged on the eye bolt, and a thrust bearing is arranged between the lower side of the adjusting nut and the upper side of the supporting shaft sleeve.

7. The auxiliary device for centering and adjusting the pump shaft system of claim 1, 4 or 5, wherein the bottom plate is provided with jackscrew assemblies positioned at two sides of the connecting frame, the jackscrew assemblies comprise L-shaped jackscrews, one side of each L-shaped jackscrew is fixed with the bottom plate through screws, the other side of each L-shaped jackscrew is provided with jackscrews, and jackscrews are matched with jackscrew nuts.

8. The auxiliary device for centering and adjusting the pump shaft system of claim 7, wherein the bottom plate is in a strip shape, and a plurality of connecting holes for connecting with the L-shaped top pins are formed in the bottom plate.