Coupling wheel center adjusting device for maintenance of horizontal water pump of power plant

Abstract

The utility model discloses a coupler coupling center adjusting device for overhauling a horizontal water pump of a power plant, which relates to the technical field of overhauling of power plants and comprises a first assembly and a second assembly. The second assembly comprises a connecting part and a top plate, and the connecting part is arranged below the top plate; a plurality of connecting holes are formed in corresponding positions of the first assembly and the connecting part; the first assemblies are fixed at four corners of a base of the horizontal water pump motor to be adjusted; the connecting part and the first assembly are fixed together through a plurality of connecting holes and connecting bolts penetrating through the connecting holes; a jackscrew hole is formed in the top plate, and a jackscrew is arranged on the jackscrew hole; and the jackscrew is used for adjusting the position of the horizontal water pump motor to be adjusted on the base. The technical problems that in the prior art, working efficiency is low, and potential safety hazards exist in equipment are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of power plant maintenance, in particular to a wheel center adjustment device for a coupling for maintenance of a horizontal water pump in a power plant. Background Art

[0002] In the maintenance of large horizontal water pumps in thermal power plants, the center adjustment of the coupling is a core process. If the center of the water pump rotor is not correct, a forced torque will be generated under the operating conditions, causing defects such as shaft vibration, friction of dynamic and static parts, excessive load on some supporting bearings, increased lubricating oil temperature, and bearing wear. In severe cases, it may cause motor overload, vibration protection action, and instantaneous jamming of dynamic and static parts, resulting in water pump failure tripping, motor and water pump equipment damage, and major equipment accidents. It directly affects the safe and economic operation of the auxiliary equipment and systems of the power plant. Therefore, the maintenance of large horizontal water pumps puts forward higher requirements for the accuracy of the coupling center adjustment.

[0003] During the inspection and maintenance of the center adjustment of the coupling of a large horizontal water pump, the method of moving the motor forward and backward and left and right is generally used to adjust the left and right circumference of the shaft system and the center value of the opening. Due to the large size and heavy weight of the motor (2-6T), the traditional adjustment method requires at least 4 people to cooperate, one of whom holds a large copper rod against the motor foot to be adjusted, another person repeatedly hits the mobile motor position with a sledgehammer, and the other two monitor the dial indicator. During the work process, there are risks that the sledgehammer may slip and injure people, excessive force may damage equipment, uneven force may cause inaccurate adjustment data, and repeated operations are time-consuming and labor-intensive. Not only does it pose a safety hazard to people and equipment, but it also seriously affects work efficiency. Utility Model Content

[0004] The purpose of the utility model is to provide a wheel center adjustment device for a horizontal water pump maintenance coupling in a power plant in order to solve at least one of the above technical problems.

[0005] In the first aspect, an embodiment of the utility model provides a device for adjusting the center of a wheel of a coupling for overhauling a horizontal water pump in a power plant, comprising: a first assembly and a second assembly; the second assembly comprises a connecting portion and a top plate, the connecting portion being arranged below the top plate; a plurality of connecting holes are arranged at corresponding positions on the first assembly and the connecting portion; the first assembly is fixed to the four corners of the base of the horizontal water pump motor to be adjusted; the connecting portion is fixed together with the first assembly through the plurality of connecting holes and connecting bolts passing through the connecting holes; a top screw hole is arranged on the top plate, and a top screw is arranged on the top screw hole; the top screw is used to adjust the position of the horizontal water pump motor to be adjusted on the base.

[0006] Furthermore, the first assembly is fixed on the base by welding.

[0007] Furthermore, the connecting hole is a threaded through hole.

[0008] Furthermore, three connection holes are arranged on the first assembly, and three connection holes are arranged at corresponding positions on the connection portion.

[0009] Furthermore, the number of the first assembly and the number of the second assembly are both plural, and one first assembly and one second assembly form a group and are respectively arranged at the four corners of the base of the horizontal water pump motor to be adjusted.

[0010] Furthermore, the connecting portion and the top plate are made of an integrally formed steel plate.

[0011] Furthermore, the material of the first assembly includes steel plate.

[0012] The utility model provides a device for adjusting the center of a wheel of a coupling for overhauling a horizontal water pump in a power plant. The device has a simple structure, is easy to install, and has good operability and applicability. When adjusting the center of the coupling, the utility model can move the motor according to the initial data measurement result to accurately adjust the lateral and longitudinal positions respectively, thereby greatly reducing the number of operators, reducing measurement errors, reducing labor intensity, and improving operation efficiency. The technical problems of low work efficiency and equipment safety hazards existing in the prior art are alleviated. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the implementation methods of the present application or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0014] Figure 1 A schematic diagram of the structure of a wheel center adjustment device for a horizontal water pump maintenance coupling in a power plant provided by an embodiment of the utility model;

[0015] Figure 2 Three views of a first assembly provided in an embodiment of the utility model;

[0016] Figure 3 It is a three-view drawing of a second assembly provided according to an embodiment of the utility model;

[0017] Figure 4 The present invention is a top view schematic diagram of the installation of a wheel center adjustment device for a horizontal water pump maintenance coupling in a power plant provided by an embodiment of the utility model.

[0018] In the figure: 1, first assembly, 2, second assembly, 3, connecting part, 4, top plate, 5, connecting hole, 6, horizontal water pump motor to be adjusted, 7, base, 8, connecting bolt, 9, top screw hole, 10, top screw. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] Figure 1 The following is a schematic diagram of a device for adjusting the center of a wheel of a coupling for overhauling a horizontal water pump in a power plant according to an embodiment of the utility model. Figure 1 As shown, the device comprises: a first assembly 1 and a second assembly 2 ; the second assembly 2 comprises a connecting portion 3 and a top plate 4 , wherein the connecting portion 3 is arranged below the top plate 4 .

[0021] Figure 2 It is a three-view drawing of a first assembly provided according to an embodiment of the utility model. Figure 3 It is a three-view drawing of a second assembly provided according to an embodiment of the utility model.

[0022] Specifically, Figure 1-3 As shown, the first assembly 1 and the connecting portion 3 are provided with a plurality of connecting holes 5 at corresponding positions. The first assembly 1 is fixed to the four corners of the base 7 of the horizontal water pump motor 6 to be adjusted; the connecting portion 3 and the first assembly 1 are fixed together through the plurality of connecting holes 5 and the connecting bolts 8 passing through the connecting holes.

[0023] Specifically, Figure 1 and Figure 3 As shown, a top screw hole 9 is provided on the top plate 4, and a top screw 10 is provided on the top screw hole 9.

[0024] Specifically, the top screw 10 is used to adjust the position of the horizontal water pump motor 6 to be adjusted on the base 7.

[0025] Preferably, the first assembly 1 is fixed on the base 7 by welding.

[0026] Preferably, the first assembly 1 is fixed to the base 7 by welding all four sides.

[0027] Preferably, the connecting hole 5 is a threaded through hole, and the connecting bolt 8 is an M20 hexagonal head full-thread bolt.

[0028] Preferably, if Figure 2and Figure 3 As shown, three connection holes 5 are provided on the first assembly 1, and three connection holes 5 are provided at corresponding positions of the connection part 3. Specifically, the first assembly 1 and the connection part 3 on the second assembly 2 are connected and fixed as a whole through the corresponding three connection holes 5 using M20 hexagonal head full thread bolts.

[0029] Preferably, the top screw hole 9 is an M20 full screw top screw hole, and the top screw 10 includes an M20 full thread top screw bolt. During operation, an M32 plum wrench is used to rotate the M20 full thread top screw bolt to top move the horizontal water pump motor 6 to be adjusted.

[0030] Figure 4 The figure is a top view of the installation of a wheel center adjustment device for a horizontal water pump maintenance coupling in a power plant according to an embodiment of the utility model. Figure 4 As shown, there are multiple first assemblies 1 and second assemblies 2, and one first assembly 1 and one second assembly 2 form a group and are respectively arranged at the four corners of the base 7 of the horizontal water pump motor 6 to be adjusted.

[0031] Preferably, if Figure 4 As shown, there are 8 sets of the first assembly 1 and the second assembly 2, which are respectively installed and fixed at the four corners of the horizontal water pump motor 6 to be adjusted. When adjusting the center of the coupling, the horizontal and vertical positions of the moving motor can be accurately adjusted according to the initial data measurement results.

[0032] Preferably, the connecting portion 3 and the top plate 4 are made of an integrally formed steel plate.

[0033] Specifically, the second assembly 2 is made of No. 45 steel plate, with a thickness of 20mm, a length of 205mm, and a width of 70mm. The top screw hole 9 is an M20 fully threaded top screw hole with a depth of 20mm; the three connecting holes 5 are all φ20mm through holes with a depth of 20mm; among them, the top screw hole 9 is 75mm away from the center of the top connecting hole 5, the center distance between the top and middle connecting holes 5 is 39mm, and the center distance between the two bottom connecting holes 5 is 39mm.

[0034] Preferably, the material of the first assembly 1 includes a steel plate.

[0035] Specifically, the first assembly 1 is made of No. 45 steel plate, with a thickness of 20mm, a length of 130mm, and a width of 70mm. The three connecting holes 5 are all M20mm threaded through holes with a depth of 20mm. The center distance between the upper two connecting holes 5 is 39mm, and the center distance between the lower two connecting holes 5 is 39mm.

[0036] From the above description, it can be seen that the utility model provides a device for adjusting the center of a wheel of a coupling for maintenance of a horizontal water pump in a power plant, which has a simple structure, is easy to install, and has good operability and applicability. When adjusting the center of the coupling, the utility model can move the motor according to the initial data measurement results, and accurately adjust the lateral and longitudinal positions respectively, thereby greatly reducing the number of operators, reducing measurement errors, reducing labor intensity, and improving work efficiency. It alleviates the technical problems of low work efficiency and equipment safety hazards in the prior art.

[0037] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0038] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A device for adjusting the wheel center of a coupling for overhauling a horizontal water pump in a power plant, characterized in that: include: A first assembly and a second assembly; the second assembly includes a connecting portion and a top plate, the connecting portion is arranged at a position below the top plate; a plurality of connecting holes are arranged at corresponding positions of the first assembly and the connecting portion; the first assembly is fixed to the four corners of the base of the horizontal water pump motor to be adjusted; the connecting portion and the first assembly are fixed together through the plurality of connecting holes and connecting bolts passing through the connecting holes; A top screw hole is arranged on the top plate, and a top screw is arranged on the top screw hole; The top screw is used to adjust the position of the horizontal water pump motor to be adjusted on the base.

2. The device for adjusting the center of a wheel of a coupling for overhauling a horizontal water pump in a power plant according to claim 1 is characterized in that: The first assembly is fixed on the base by welding.

3. The device for adjusting the center of a wheel of a coupling for overhauling a horizontal water pump in a power plant according to claim 1 is characterized in that: The connecting hole is a threaded through hole.

4. The device for adjusting the wheel center of a coupling for overhauling a horizontal water pump in a power plant according to claim 1 is characterized in that: The first assembly is provided with three connection holes, and the connection portion is provided with three connection holes at corresponding positions.

5. The wheel center adjustment device for overhauling coupling of horizontal water pump in power plant according to claim 1 is characterized by: The first assembly and the second assembly are both in plurality, and one first assembly and one second assembly form a group and are respectively arranged at the four corners of the base of the horizontal water pump motor to be adjusted.

6. The device for adjusting the center of a wheel of a coupling for overhauling a horizontal water pump in a power plant according to claim 1, characterized in that: The connecting portion and the top plate are made of an integrally formed steel plate.

7. The device for adjusting the center of a wheel of a coupling for overhauling a horizontal water pump in a power plant according to claim 1, characterized in that: The material of the first assembly includes a steel plate.

Images