Dumper generator rotor fixer

Abstract

The utility model discloses a dumper generator rotor fixer, which relates to the field of mining dumper, and comprises a fixer main body, the fixer main body is a cylindrical structure, and the bottom of the fixer main body is provided with a groove for placing a generator rotor; two symmetrically-arranged supporting blocks are arranged on the two sides of the groove in the fixator body, the far ends of the supporting blocks are connected with hydraulic jacks, and the hydraulic jacks can drive the supporting blocks to be relatively close to or away from each other. The opposite sides of the supporting blocks are arc surfaces and used for being attached to the end face of a motor rotor. The cylindrical fixer main body is used for accommodating the generator rotor, is in contact with the generator rotor for supporting, and is matched with the arc-shaped supporting blocks to be in contact with the end face of the rotor from the two sides for supporting, so that the generator rotor is stably supported, the rotor can be prevented from toppling over, the personal safety of workers is guaranteed, and the safety of the rotor during overhaul and maintenance is improved.

Description

Technical Field

[0001] The utility model relates to the field of mining dump trucks, in particular to a rotor fixer for a generator of a dump truck. Background Art

[0002] Mining dump trucks are the main mining equipment in open-pit coal mines. 783KW AC generators are important components of mining dump trucks, but they are prone to failure in the complex working environment of mines. In order to ensure that mining dump trucks can run normally during work, 783KW generators need to be regularly repaired and maintained. When regularly repairing and maintaining the 783KW main generator, the generator needs to be disassembled and the easily worn parts need to be replaced. When disassembling and assembling the generator, the motor rotor needs to be erected. However, the bottom of this large generator rotor is only about 20cm wide in contact with the workbench, the outer diameter of the rotor is about 51cm, and the weight of the rotor is about 1.5T. If the rotor is erected without any support, there is a great possibility of tipping over, and there is a risk of maintenance personnel being hit and squeezed. Utility Model Content

[0003] In view of the deficiencies in the above-mentioned prior art, the utility model provides a rotor fixer for a dump truck generator. After the 783KW main motor is disassembled, the main motor rotor can be fixed and placed for inspection and maintenance, so that it is in a stable state, avoiding injuries to workers during rotor repair and maintenance.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A dump truck generator rotor holder, comprising a holder body, the holder body being a cylindrical structure, a groove being provided at the bottom of the holder body for placing the generator rotor;

[0006] Two support blocks are symmetrically arranged in the fixture body, and the distal ends of the support blocks are connected to the hydraulic jacks, which can drive the support blocks to move relatively closer or farther away; the opposite side of the support block is set as an arc surface for fitting with the end face of the motor rotor.

[0007] Furthermore, it also includes a hydraulic pump, which is connected to two hydraulic jacks through hydraulic oil pipes to provide hydraulic oil.

[0008] Furthermore, the hydraulic oil pipe adopts a steel wire hose, which is light in weight, not easy to deform and corrosion-resistant, easy to replace and maintain, and economical.

[0009] Furthermore, the fixture body is made of alloy steel, has a stable structure, strong bearing capacity, and is heat-resistant and corrosion-resistant.

[0010] Furthermore, the support block is made of steel, and a non-slip shock-absorbing sleeve is provided on the surface of the support block, which can prevent the outer surface of the rotor from being damaged when the support block clamps the rotor of the main motor while ensuring that the support block has good rigidity.

[0011] Furthermore, the anti-skid shock-absorbing sleeve is a plastic sleeve.

[0012] Furthermore, a connecting seat is provided in the fixing body, and the connecting seat fixedly connects the hydraulic jack to the inner wall of the fixing body.

[0013] Furthermore, the support block is bolted to the hydraulic jack.

[0014] Furthermore, a support block fixing steel plate is provided between the support block and the hydraulic jack to fix the anti-skid shock-absorbing sleeve to prevent the anti-skid shock-absorbing sleeve from falling off.

[0015] Furthermore, two symmetrical surfaces on the outer surface of the fixture body are hollowed out to leave enough operating space for the staff.

[0016] By adopting the above technical solution, the beneficial effects of the utility model are as follows:

[0017] 1. The utility model accommodates the generator rotor through the cylindrical fixture body, contacts with the generator rotor for support, and cooperates with the arc-shaped support blocks to contact and support the rotor end faces from both sides, thereby achieving stable support for the generator rotor, preventing the rotor from tipping over, ensuring the personal safety of the staff, and improving the safety during rotor inspection and maintenance.

[0018] 2. The utility model has a simple structure and is easy to use, and effectively avoids the risk of maintenance personnel being hit or squeezed. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0020] Figure 1 It is a front view of an embodiment of the utility model;

[0021] Figure 2 A top view of an embodiment of the utility model;

[0022] Figure 3 It is a schematic diagram of the assembly of the hydraulic jack according to an embodiment of the utility model;

[0023] Figure 4 This is a schematic diagram of the disassembly of the hydraulic jack accessories of the embodiment of the utility model;

[0024] Figure 5This is a schematic diagram of a generator rotor fixed according to an embodiment of the utility model.

[0025] In the figure: 1. Fixer body; 2. Support block; 3. Hydraulic jack; 4. Connecting seat; 5. Support block fixing steel plate; 6. Hydraulic pump; 7. Hydraulic oil pipe; 8. Fixing bolt; 9. Groove; 10. Rotor. DETAILED DESCRIPTION

[0026] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0027] It should be noted that the following detailed descriptions are exemplary and are intended to provide further description of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0028] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the utility model. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0029] Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present utility model.

[0030] Embodiment 1

[0031] In a typical embodiment of the present application, a dump truck generator rotor holder is provided, such as Figure 1-5 As shown, it includes a fixture body 1, which is a cylindrical structure. A groove is opened at the bottom of the fixture body for placing and engaging the generator rotor. The rotor 10 of the generator is placed at the bottom of the fixture body 1 from above. In this embodiment, it is the rotor of a 783KW AC generator.

[0032] Two support blocks 2 are radially symmetrically arranged in the fixture body, and the far ends of the support blocks are connected to the hydraulic jacks 3, which can drive the support blocks to move relatively closer or farther away; the opposite side of the support block is set as an arc surface for fitting with the end face of the generator rotor.

[0033] Specifically, Figure 1As shown, the fixture body 1 is designed as a hollow cylinder without a cover, made of alloy steel with high strength and good plastic toughness. The outer diameter of the cylinder is 90 cm, the height of the cylinder is 80 cm, and a groove with a circular opening of 24 cm in diameter is provided at the center of the bottom of the cylinder for placing and locking the generator rotor to play a limiting role. The outer surface of the two symmetrical surfaces where the symmetrical support blocks are located is hollowed out to facilitate maintenance by staff.

[0034] like Figure 1 , 3 As shown, the hydraulic jack 3 connected to the two support blocks are symmetrically embedded in the inner surface of the cylinder from both sides. The hydraulic jack is embedded in the fixture body in the radial direction and extends into the interior where the support blocks are fixed, so as to contact and fix the rotor. In order to fix the hydraulic jack, a groove of a certain depth is longitudinally opened on the inner wall of the fixture body 1. A connecting seat 4 fixedly connected to the hydraulic jack is fixed in the groove. At the same time, the connecting seat 4 is bolted to the fixture body 1, thereby fixing the hydraulic jack to the fixture body, thereby ensuring the stability of the hydraulic jack installation. Figure 1 , 5 As shown, the support block is fixedly connected to the hydraulic jack via fixing bolts 8. When the hydraulic jack is started, the support block can be driven to move horizontally to contact or move away from the generator rotor.

[0035] In this embodiment, the length of the fixture body is 20.8 cm, and a hydraulic jack weighing 7.5 kg and two support blocks with a length of 19 cm, a height of 30 cm and a width of 1.5 cm are used.

[0036] The generator rotor holder also includes a hydraulic pump 6, such as Figure 1 , 2 As shown, the hydraulic pump 6 is installed on the outside of the fixing body 1, and is connected to the hydraulic jacks 3 on both sides through the hydraulic oil pipe 7, which is used to provide hydraulic oil to drive the support blocks on both sides to move. The hydraulic oil pipe adopts a steel wire hose, which has the characteristics of light weight, strong durability, easy transfer, soft pipe body, sensitive use, high temperature and low temperature resistance, and anti-aging. It is not easy to deform, has good corrosion resistance, is easy to replace and maintain, and has good economy. In this embodiment, the hydraulic pump adopts a 220V electric hydraulic pump, and other parameters are: power is 750W, high pressure 70Mpa, low pressure 7Mpa, high pressure flow 1L / min, low pressure flow 5L / min, and motor speed 1400r / min.

[0037] In this embodiment, the support block 2 is made of steel, which can ensure the rigidity of the support block and avoid obvious deformation. Preferably, the surface of the support block 2 is covered with an anti-skid shock-absorbing sleeve, which is a fan-shaped plastic sleeve. The plastic has good elasticity and wear resistance, which can prevent the outer surface of the rotor from being damaged when the support block clamps the rotor of the main motor.

[0038] Preferably, a support block fixing steel plate 5 is provided between the support block 2 and the hydraulic jack 3, the purpose of which is to fix the anti-skid shock-absorbing sleeve and play a supporting role so that the anti-skid shock-absorbing sleeve is not easy to fall off.

[0039] The working principle is:

[0040] like Figure 5 As shown, the generator rotor is placed in the fixture body 1, the bottom of the rotor 10 is embedded in the groove 9 at the bottom of the fixture, and the outer cylindrical surface of the rotor 10 is in contact with or against the inner wall of the fixture body. After the hydraulic pump 6 is powered on, the switch is turned on, and the hydraulic oil flows into the hydraulic jack 3 through the hydraulic oil pipe 7. The static pressure transmitted by the hydraulic oil causes the jack columns on both sides to extend, so that the arc-shaped support block 2 firmly adheres to the end face of the generator rotor for support, ensuring that the generator rotor is in a stable state, preventing the generator rotor from tipping over, and avoiding the risk of workers being hit or squeezed.

[0041] The generator rotor holder provided in this embodiment can adapt to generator rotors of various diameters. When the generator rotor diameter is the same as the inner diameter of the holder body, the rotor fits against the inner wall of the holder body in the groove; for rotors with a diameter larger than the inner diameter of the holder body, the rotor can be placed in the groove against the inner wall of the holder body. At the same time, the supporting blocks are in close contact with the end faces of the generator rotor from both sides to achieve stable support and position fixation of large generator rotors, which can prevent the rotor from tipping over during maintenance and improve the safety of rotor maintenance.

[0042] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Those skilled in the art should understand that the utility model can be modified and varied in various ways. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A dump truck generator rotor holder, characterized in that: It includes a fixture body, the fixture body is a cylindrical structure, and a groove is provided at the bottom of the fixture body for placing the generator rotor; The fixture body is symmetrically provided with two support blocks, the distal ends of which are connected to hydraulic jacks, which can drive the support blocks to move relatively closer or farther away; the opposite side of the support block is set as an arc surface for fitting with the end face of the motor rotor.

2. A dump truck generator rotor holder as claimed in claim 1, characterized in that: It also includes a hydraulic pump, which is connected to the two hydraulic jacks through hydraulic oil pipes.

3. A dump truck generator rotor holder as claimed in claim 2, characterized in that: The hydraulic oil pipe is a steel wire hose.

4. A dump truck generator rotor holder as claimed in claim 1, characterized in that: The fixer body is made of alloy steel.

5. A dump truck generator rotor holder as claimed in claim 1, characterized in that: The support block is made of steel, and a non-slip shock-absorbing sleeve is provided on the surface of the support block.

6. A dump truck generator rotor holder as claimed in claim 5, characterized in that: The anti-skid shock-absorbing sleeve is a plastic sleeve.

7. A dump truck generator rotor holder as claimed in claim 1, characterized in that: A connecting seat is also provided in the fixing body, and the connecting seat fixedly connects the hydraulic jack to the inner wall of the fixing body.

8. The dump truck generator rotor holder according to claim 1, characterized in that: The support block is connected with the hydraulic jack bolts.

9. A dump truck generator rotor holder as claimed in claim 5, characterized in that: A support block fixing steel plate is provided between the support block and the hydraulic jack.

10. The dump truck generator rotor holder according to claim 1, characterized in that: The two symmetrical surfaces on the outer surface of the fixator body are hollowed out.

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