Dumper motor rotor supporting device

Abstract

The utility model discloses a dumper motor rotor supporting device, which relates to the field of mining dumper and comprises a main supporting frame, at least one pair of symmetrically arranged supporting wheels is arranged above the main supporting frame, and the supporting wheels are fixedly mounted on the main supporting frame and used for supporting a motor rotor. The symmetrically-arranged supporting wheel supports are provided with hydraulic supporting blocks, the bottom ends of the hydraulic supporting blocks are connected with hydraulic assemblies, and the hydraulic assemblies are used for driving the hydraulic supporting blocks to ascend or descend. The main supporting frame and the supporting wheels are matched to support the motor rotor, so that the position of the motor rotor is fixed and is separated from the ground, and the occupied field area during working is effectively reduced; the motor rotor directly acts on the supporting wheels, so that the rotor can rotate at will, and a worker can conveniently maintain and overhaul the motor rotor; and meanwhile, the hydraulic assembly drives the hydraulic supporting block to make contact with the motor rotor to increase friction, so that the motor rotor can be stably kept in a static state, and the personal safety of workers is guaranteed.

Description

Technical Field

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

[0002] Mining dump trucks are the main mining equipment in the open-pit coal industry. 328kw DC motors are important components of the wheel reducer for mining dump trucks. The main function of 328kw DC motors is to convert electrical energy into mechanical energy to provide power for the wheels of mining dump trucks. The rotor of 328kw DC motors is the core component of 328kw DC motors. When the 328kw DC motor is connected to the current, a magnetic field is generated inside the motor. The rotor rotates by cutting the magnetic field, driving the planetary gears and thus the wheels.

[0003] Due to the harsh environment in the mine and the long service life of mining dump trucks, 328kw DC motors and other high-power motors require regular maintenance to ensure the stable performance of mining dump trucks. Among them, the maintenance of the motor rotor is a major project and the frequency is relatively frequent. The maintenance of the 328kw DC motor rotor includes cleaning the carbon deposits between the rotor commutator, chamfering the commutator, and applying insulating paint to the rotor's lathless belt and riser.

[0004] These tasks require frequent rotation of the rotor, but due to the heavy weight (about 1 ton) and large size of the 328kw DC motor rotor, it is very difficult to rotate, which brings difficulties and uncontrollable safety hazards to maintenance work, such as: the limitation of the work area, the large amount of manpower consumed when the rotor rotates, which greatly increases the labor intensity of the staff, and the safety hazards of manually rotating the rotor, such as squeezing the hands and feet of the staff and colliding with the body.

[0005] Some prior arts design rotatable wheels or rollers on the basis of traditional support frames to contact with the motor rotor for support, so that it can rotate flexibly and is easy to maintain. For example, patent CN 212086029 U discloses a movable large-scale motor rotor inspection and debugging bracket. However, on the one hand, this structure occupies a large area when used and its application is relatively limited. On the other hand, the rotational freedom of the motor rotor is not limited, and it is easy for the motor rotor to rotate accidentally due to factors such as accidental touch, accidental collision, and shaking of the bracket, which may collide with or injure the staff, posing a safety hazard. Utility Model Content

[0006] In view of the deficiencies in the above-mentioned prior art, the utility model provides a dump truck motor rotor support device, which can support the motor rotor and rotate it, making it convenient for staff to repair and maintain it. At the same time, it can keep the motor rotor stably in a certain position, avoiding safety accidents caused by accidental rotation of the motor rotor, and improving safety during inspection and maintenance.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] A dump truck motor rotor support device comprises a main support frame, above which at least one pair of symmetrically arranged support wheels is arranged, the support wheels are fixedly mounted on the main support frame for supporting the motor rotor; a hydraulic support block is arranged between the symmetrically arranged support wheels, the bottom end of the hydraulic support block is connected to a hydraulic component, and the hydraulic component is used to drive the hydraulic support block to rise or fall.

[0009] Furthermore, the main support frame includes two support platforms, the support wheels and the hydraulic support blocks are both arranged on the upper support platform, the upper support platform includes two steel plates with a gap between the two steel plates; the bottom surface of the hydraulic support block is in contact with the two steel plates and is welded to them.

[0010] Furthermore, the hydraulic assembly includes a hydraulic jack, the top of which is bolted to the hydraulic support block and can drive the hydraulic support block to rise or fall.

[0011] Furthermore, a fixing seat is provided at the bottom of the hydraulic jack, and the fixing seat is bolted to the main support frame.

[0012] Furthermore, the hydraulic assembly also includes a hydraulic pump, which is arranged below the upper support platform. The hydraulic pump is connected to the hydraulic jack through an oil pipe and can provide hydraulic oil.

[0013] Furthermore, an anti-skid shock-absorbing sleeve is provided on the top of the hydraulic support block to increase the friction between the motor rotor and the hydraulic support block, thereby playing a braking role, lifting and fixing the motor rotor, and preventing the motor rotor from rotating accidentally.

[0014] Furthermore, the hydraulic support block is made of rubber material, which can avoid scratching the rotor surface. At the same time, it has good friction resistance and certain insulation properties, which is conducive to insulation detection on the bracket.

[0015] Furthermore, a support block fixing steel plate is provided at the bottom of the hydraulic support block, and the support block fixing steel plate is fixedly connected to the hydraulic support block to provide a certain rigid support for the hydraulic support block to prevent the hydraulic support block from being excessively deformed due to stress.

[0016] Furthermore, the bottom surface of the main support frame is affixed with anti-skid and shock-absorbing stickers to ensure that the main support frame has good stability when placed on various ground surfaces or platforms.

[0017] Furthermore, the main support frame is welded from alloy steel and has high strength and good plasticity and toughness.

[0018] Furthermore, the support wheel adopts a flat wheel double-ended thread, and the flat wheel double-ended thread is fixedly connected to the main support frame through a nut.

[0019] By adopting the above technical solution, the beneficial effects of the utility model are as follows:

[0020] 1. The utility model supports the motor rotor through the cooperation of the main support frame and the support wheel, so that the position of the motor rotor is fixed and off the ground, effectively reducing the site area occupied during work; the motor rotor directly acts on the support wheel, which can realize the arbitrary rotation of the rotor, and is convenient for the staff to maintain and repair the motor rotor; at the same time, when the maintenance position is confirmed, the hydraulic support block can be driven by the hydraulic component to contact the motor rotor to increase friction, so that the motor rotor can maintain a relatively stable static state, avoid injuries caused by accidental rotation of the rotor, ensure the personal safety of the staff, and improve safety performance.

[0021] 2. The utility model has a simple structure and is easy to use, which greatly reduces the investment in manpower and maintenance resources and is conducive to improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] 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.

[0023] Figure 1 It is a front view of an embodiment of the utility model;

[0024] Figure 2 It is a partial schematic diagram of the hydraulic assembly of an embodiment of the utility model.

[0025] In the figure: 1. Main support frame; 2. Support wheel; 3. Hydraulic support block; 4. Hydraulic assembly; 5. Motor rotor;

[0026] 401. Hydraulic jack; 402. Fixing bolts; 403. Support block fixing steel plate; 404. Fixing seat; 405. Hydraulic pump; 406. Oil pipe. DETAILED DESCRIPTION

[0027] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0028] 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.

[0029] 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.

[0030] 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.

[0031] Embodiment 1

[0032] In a typical embodiment of the present application, a dump truck motor rotor support device is provided, such as Figure 1-2 As shown, it includes a main support frame 1, at least one pair of symmetrically arranged support wheels 2 are arranged above the main support frame 1, the support wheels 2 are fixedly mounted on the main support frame and contact the electronic rotor 5, and are used to support the motor rotor; a hydraulic support block 3 is arranged between the symmetrically arranged support wheels 2, and the bottom end of the hydraulic support block 3 is connected to a hydraulic component 4, and the hydraulic component 4 is used to drive the hydraulic support block 3 to rise or fall. Among them, the support wheel adopts a flat wheel double-headed wire.

[0033] Specifically, the main support frame is made of alloy steel welded as a whole and is divided into two layers, including: a first steel plate of 800mm×520mm×50mm, which is placed horizontally as the bottom of the entire support frame; four second steel plates of 180mm×135mm×50mm, which are symmetrically welded vertically on the upper surface of the first steel plate in pairs and 100mm away from the corner side, serving as the four legs at the bottom; two third steel plates of 600mm×135mm×50mm, which are welded on the top of the second steel plates in pairs. The long side is parallel to the long side of the first steel plate, serving as the upper support platform of the support frame; four 320mm×135mm×80mm first channel steels are welded on the third steel plate in pairs with the wide side of the third steel plate as the reference, and are flush with the wide side edge; in addition, there are four trapezoidal alloy channel steels with an upper bottom of 70mm, a lower bottom of 250mm, and a height of 80mm, which are welded between the third steel plate and the first channel steel, and the two waist edges are welded and connected to the upper surface of the third steel plate and the side of the first channel steel, respectively, for the installation of the flat wheel double-headed wire. Among them, the steel plates and channel steels used in the main support frame are alloy steels with high strength, good plastic toughness, good weldability, and no quenching structure or cracks at the weld, which can effectively ensure the support strength of the 328kw DC motor rotor and other large motor rotors.

[0034] The flat wheel double-ended thread adopts an existing product with a diameter of 100mm and a thickness of 100mm, and has two built-in 6205 bearings. In this embodiment, four flat wheel double-ended threads are arranged in two pairs, which are symmetrically arranged on the upper supporting platform of the main supporting frame. Each flat wheel double-ended thread is fixedly installed at the recess of the second channel steel with a nut, and the bearing capacity can reach 6 tons, which can meet the needs of 328kw DC motor rotors and other large motor rotors.

[0035] Place the motor rotor to be repaired and maintained on the main support frame, so that the entire motor rotor is free from the ground and directly acts on the four flat wheel double-ended screws. The flat wheel double-ended screws can rotate with the motor rotor, so the motor rotor can be rotated to any surface as needed for easy maintenance. Among them, the flat wheel double-ended screws are fixed to the holes on the main support frame, and the double ends of the flat wheel shaft are locked with nuts and brake pads and spring washers to prevent sliding.

[0036] Considering that when working on a certain place or a certain area of ​​the motor rotor, if the motor rotor suddenly rotates due to errors and other reasons, it is easy to collide with the staff and cause injuries. In this embodiment, a hydraulic support block that can be lifted and lowered is used to increase its friction strength when the motor rotor needs to be stationary at a certain position to prevent the motor rotor from suddenly moving. Specifically, the hydraulic support block 3 is made of rubber material to avoid scratching the rotor surface, and its insulation can be used to perform insulation detection on the bracket. The rubber is a hard rubber block with good friction performance, wear resistance and support. The hydraulic support block 3 is placed on the upper support platform of the main support frame 1, and a hydraulic component 4 is set at the bottom to drive the hydraulic support block to rise and fall. The top of the hydraulic support block 3 is set to an arc surface, which corresponds to the shape of the motor rotor and can fit the motor rotor. At the same time, anti-skid and shock-absorbing measures are taken on the top arc surface of the hydraulic support block. Specifically, in this embodiment, an anti-skid and shock-absorbing sleeve is set on the top of the hydraulic support block to play a shock-absorbing role when carrying the motor rotor and increase the friction force on the contact surface with the motor rotor. When the motor rotor needs to be stationary at a certain position, the hydraulic support block is driven up by the hydraulic assembly to be in close contact with the motor rotor, thereby preventing the motor rotor from rotating freely and causing safety hazards.

[0037] Regarding the setting method of hydraulic components, such as Figure 2 As shown, the hydraulic assembly 4 includes a fixing seat 404, which is arranged on the upper support platform of the main support frame and fixedly connected by a plurality of bolts. A hydraulic jack 401 is arranged on the fixing seat 404, and the top of the hydraulic jack 401 is fixedly connected to the upper hydraulic support block 3 by a fixing bolt 402. When the hydraulic jack is fed with hydraulic oil, the upper hydraulic support block can be driven to move up and down. A support block fixing steel plate 403 is arranged at the bottom of the hydraulic support block 3, which is used to fix the hydraulic support block and provide a certain rigid support for the rubber block to prevent excessive deformation of the rubber hydraulic support block when subjected to force.

[0038] The hydraulic assembly 4 also includes a hydraulic pump 405 disposed below the upper support platform, the hydraulic pump is connected to an oil pipe 406, and the oil pipe 406 passes upward through the upper support platform and is connected to the hydraulic jack 401 to provide hydraulic oil for the hydraulic jack. Specifically, in the present embodiment, the upper support platform is composed of the two third steel plates mentioned above, a certain interval is set between the two steel plates, and the hydraulic support block is placed on the main support frame across the interval and in contact with both steel plates. The oil pipe passes through the interval between the steel plates from bottom to top to connect the hydraulic pump and the hydraulic jack, and the cooperation can drive the hydraulic support block to rise and contact with the motor electronics, or to descend and disengage from the motor rotor so that the motor rotor can rotate freely. The hydraulic jack and the hydraulic pump adopt existing products, such as the electric hydraulic pump of DYB-63A and the hydraulic jack of FPY-10.

[0039] In order to improve the effect of limiting the rotation of the motor rotor, multiple groups of hydraulic support blocks and hydraulic components can be set according to the volume of the motor rotor. In this embodiment, two front and rear groups of hydraulic support blocks are set between the flat wheel double-headed wires symmetrically arranged on the left and right to improve safety performance.

[0040] In addition, anti-slip and shock-absorbing stickers are also affixed to the bottom surface of the first steel plate to ensure that the main support frame has good stability when encountering various ground surfaces, thereby improving the stability of the support for the motor rotor.

[0041] 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 motor rotor support device, characterized in that: It includes a main support frame, above which at least one pair of symmetrically arranged support wheels are arranged, and the support wheels are fixedly mounted on the main support frame for supporting the motor rotor; a hydraulic support block is arranged between the symmetrically arranged support wheels, and the bottom end of the hydraulic support block is connected to a hydraulic component, and the hydraulic component is used to drive the hydraulic support block to rise or fall; when the motor rotor needs to be stationary at a certain position, the hydraulic support block is driven to rise and be in close contact with the motor rotor through the hydraulic component.

2. A dump truck motor rotor support device as claimed in claim 1, characterized in that: The hydraulic assembly comprises a hydraulic jack, and the top of the hydraulic jack is bolted to the hydraulic support block.

3. A dump truck motor rotor support device as claimed in claim 2, characterized in that: A fixing seat is arranged at the bottom of the hydraulic jack, and the fixing seat is bolted to the main supporting frame.

4. A dump truck motor rotor support device as claimed in claim 2, characterized in that: The main support frame includes two support platforms, the support wheels and the hydraulic support blocks are both arranged on the upper support platform, the upper support platform includes two steel plates with a gap between the two steel plates; the bottom surface of the hydraulic support block is in contact with the two steel plates and is welded to them.

5. A dump truck motor rotor support device as claimed in claim 4, characterized in that: The hydraulic assembly also includes a hydraulic pump, which is arranged below the upper support platform and is connected to the hydraulic jack through an oil pipe.

6. A dump truck motor rotor support device as claimed in claim 1, characterized in that: An anti-skid shock-absorbing sleeve is arranged on the top of the hydraulic support block.

7. A dump truck motor rotor support device as claimed in claim 1, characterized in that: The hydraulic support block is made of rubber.

8. A dump truck motor rotor support device as claimed in claim 7, characterized in that: A support block fixing steel plate is arranged at the bottom of the hydraulic support block, and the support block fixing steel plate is fixedly connected to the hydraulic support block.

9. A dump truck motor rotor support device as claimed in claim 1, characterized in that: The bottom surface of the main support frame is affixed with an anti-skid and shock-absorbing sticker.

10. A dump truck motor rotor support device as claimed in claim 1, characterized in that: The support wheel adopts a flat wheel double-end screw, and the flat wheel double-end screw is fixedly connected to the main support frame through a nut.

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