CN215160686U

CN215160686U - Motor rotor maintenance is with machine of lifting

Info

Publication number: CN215160686U
Application number: CN202121711019.9U
Authority: CN
Inventors: 吴高锋; 刘利强; 杨景红; 雷天峰; 王广兰
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-07-27
Filing date: 2021-07-27
Publication date: 2021-12-14
Anticipated expiration: 2031-07-27

Abstract

The utility model discloses a lifter for motor rotor maintenance, belonging to the technical field of motor maintenance; the device comprises two sets of lifting devices which are symmetrically arranged, have the same structure and support one end of a motor rotor; each set of lifting device comprises a supporting frame, a lifting device, a supporting platform and a leveling device; when in use, the supporting platform is parked on the ground; horizontally placing a motor rotor on a lifting machine, wherein two ends of the motor rotor are erected on a roller shaft device; the controller controls the first hydraulic rod to extend, the first hydraulic rod jacks the whole lifting machine backwards, the extension length of the first hydraulic rod is controlled to control the ground clearance of the motor rotor, and the electronic rotor is overhauled without bending down; the second hydraulic rod needs to be synchronously adjusted in the process of stretching of the first hydraulic rod, so that the supporting platform is kept horizontal, otherwise, the motor rotor is easy to fall off due to the fact that the supporting platform inclines.

Description

Motor rotor maintenance is with machine of lifting

Technical Field

The utility model relates to a machine of lifting for motor rotor maintenance belongs to motor maintenance technical field.

Background

The rotor in the motor is an important component for winding coils, the motor works for a long time, and the rotor is in failure, so that the maintenance of the motor rotor becomes an important component in the maintenance of the motor; when carrying out rotor maintenance, put the rotor on subaerial or stand, because the rotor can not adjust terrain clearance according to maintainer's height, the maintainer needs bow to overhaul, and large-and-medium-sized rotor maintenance is long consuming time, overhauls very big loss physical power with the state of bowing for a long time.

Disclosure of Invention

An object of the utility model is to provide an electric motor rotor maintenance is with machine of lifting solves the problem that terrain clearance can not be adjusted when current electric motor rotor maintains.

The utility model adopts the technical scheme as follows: a lifter for motor rotor maintenance comprises two sets of lifting devices which are symmetrically arranged, have the same structure and support one end of a motor rotor; each set of lifting device comprises a support frame, wherein the support frame comprises an arc-shaped support arm bent forwards, and the bottom end of the arc-shaped support arm is hinged to a first rotating shaft; the lifting device is a first hydraulic rod, the first hydraulic rod is arranged on the front side of the support frame, the upper end of the first hydraulic rod is hinged to the middle upper part of the front part of the arc-shaped support arm, and the lower end of the first hydraulic rod extends forwards and downwards and is hinged to the fourth rotating shaft; the first hydraulic rod stretches and retracts to drive the support frame to rotate around the first rotating shaft; the supporting platform comprises a supporting seat, two groups of identical roller shaft devices are symmetrically arranged on the inner side of the upper surface of the supporting seat, each group of roller shaft devices comprises a base, a V-shaped clamping groove is formed between the two bases, each base is rotatably provided with a roller shaft, and one end of a motor rotor is supported between the two roller shafts; the bottom surface of the supporting seat is provided with a convex rotating seat which is hinged at the upper end of the arc-shaped supporting arm; the leveling device is a second hydraulic rod, the bottom end of the second hydraulic rod is hinged to a first hinge portion arranged on the middle lower portion of the back face of the arc-shaped supporting arm, the upper end of the second hydraulic rod is hinged to the bottom face of the supporting seat, and the second hydraulic rod stretches and retracts to drive the supporting platform to rotate, so that the supporting platform is adjusted to be in a horizontal state.

Furthermore, one preferable structure of the support frame comprises two arc-shaped support arms which are symmetrically arranged, and the two arc-shaped support arms are connected through a plurality of transverse connecting columns; the upper ends of the two arc-shaped supporting arms are penetrated by a transverse second rotating shaft, and the rotating seat on the bottom surface of the supporting seat is hinged between the second rotating shafts at the upper ends of the two arc-shaped supporting arms; the upper middle part in front of the two arc-shaped supporting arms is provided with a transverse third rotating shaft, and the upper end of the first hydraulic rod is hinged on the third rotating shaft on the supporting frame. The support frame is strong in bearing capacity and stable in connection structure, and can meet the requirement for maintenance of large and medium-sized electronic rotors.

Further, base upper portion is equipped with the roller groove, and the bearing is installed to roller groove both sides, installs the roller between two bearings, and the diameter is greater than the bearing diameter in the middle of the roller. This structure can give the comparatively stable support of roller, and satisfies the smooth and easy pivoted operation requirement of roller.

Furthermore, a speed reducing motor is connected with the outer sides of the two roll shafts on the same side, and the roll shafts are driven to rotate through the speed reducing motor, so that the motor rotor is driven to rotate. Maintenance personal need rotate the rotor in good time to make things convenient for the winding coil or accomplish other maintenance work, the volume of rotor is great, and the quality is great, rotates very inconveniently, this problem of solution that can relax through this structure.

Further, the machine of lifting installs subaerial, has seted up two parallel slots on the ground, and two sets of lifting devices symmetry are installed at two inslots, and lifting device shrink is in the slot under the contraction state, and the width of supporting seat is greater than the width of subaerial slot, and the supporting seat spanes on the slot, parks subaerial. The structural design can prolong the service life of the hydraulic rod.

Furthermore, a sensor for detecting levelness is installed on the supporting platform and is sent to the controller, and the controller adjusts the stretching amount of the second hydraulic rod according to the detected levelness, so that the supporting platform is kept in a dynamic level state.

The beneficial effects of the utility model reside in that: the utility model provides a lifting machine's theory of operation is: the supporting platform is parked on the ground; horizontally placing a motor rotor on a lifting machine, wherein two ends of the motor rotor are erected on a roller shaft device; the controller controls the first hydraulic rod to extend, the first hydraulic rod jacks the whole lifting machine backwards, the extension length of the first hydraulic rod is controlled to control the ground clearance of the motor rotor, and the electronic rotor is overhauled without bending down; the second hydraulic rod needs to be synchronously adjusted in the process of stretching of the first hydraulic rod, so that the supporting platform is kept horizontal, otherwise, the motor rotor is easy to fall off due to the fact that the supporting platform inclines.

Drawings

Fig. 1 is a working state display diagram of the lifting machine of the present invention.

Fig. 2 is a side view of the lifting machine of the present invention.

Fig. 3 is a front view of the support stand.

Fig. 4 is a rear view of the support stand.

Fig. 5 is a structural display view on the support platform.

FIG. 6 is a view showing the structure of the roller groove on the base.

Fig. 7 is an installation position display diagram of two speed reduction motors.

Fig. 8 is a state diagram of the elevator at the initial stage.

In the figure: the device comprises a support frame 1, an arc-shaped support arm 2, a transverse connecting column 3, a first hinging part 4, a first rotating shaft 5, a second rotating shaft 6, a third rotating shaft 7, a lifting device 8, a fourth rotating shaft 9, a support platform 10, a support base 11, a base 12, a roller shaft groove 13, a bearing 14, a roller shaft 15, a speed reducing motor 16, a rotating base 17, a leveling device 18, a groove 19 and a motor rotor 20.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified 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; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Examples

As shown in fig. 1 and 2, a lifting machine for maintaining a motor rotor is installed on the ground, two parallel grooves 19 can be formed in the ground in advance, the lifting machine comprises two sets of lifting devices symmetrically installed in the two grooves 19, the two sets of lifting devices have the same structure, and the lifting machine mainly comprises a support frame 1, a lifting device 8, a support platform 10 and a leveling device 18.

As shown in fig. 2, 3 and 4, the support frame 1 comprises two arc-shaped support arms 2 which are symmetrically arranged at the left and right, the arc-shaped support arms 2 are bent forwards, as shown in fig. 4, the two arc-shaped support arms 2 are connected through a plurality of transverse connecting columns 3, the middle lower parts of the back surfaces of the two arc-shaped support arms 2 are respectively provided with a first hinge part 4, the bottom ends of the two arc-shaped support arms 2 are penetrated through by a transverse first rotating shaft 5, the two ends of the first rotating shaft 5 are fixed on the inner wall of the groove 19, and the support frame 1 can rotate around the first rotating shaft 5; the upper ends of the two arc-shaped supporting arms 2 are penetrated by a transverse second rotating shaft 6; as shown in fig. 2 and 3, a transverse third rotating shaft 7 is arranged at the middle upper part of the front surface of the two arc-shaped supporting arms 2.

As shown in fig. 1 and 2, the lifting device 8 is two first hydraulic rods arranged in parallel, the first hydraulic rods are installed on the front side of the support frame 1, the upper ends of the first hydraulic rods are hinged to a third rotating shaft 7 on the support frame 1, the lower ends of the first hydraulic rods extend forwards and downwards and are hinged to a fourth rotating shaft 9, and the fourth rotating shaft 9 is transversely fixed in the groove 19; the first hydraulic rod can drive the support frame 1 to rotate around the first rotating shaft 5 through telescopic action.

As shown in fig. 4 to 6, the supporting platform 10 includes a supporting base 11, two sets of identical roller shaft devices are symmetrically disposed on the inner side of the upper surface of the supporting base 11, and more specifically, as shown in fig. 5 and 6, each set of roller shaft device includes a base 12, a V-shaped clamping groove (as shown in fig. 2) is formed between the two bases 12, a roller shaft groove 13 is disposed on the upper portion of the base 12, bearings 14 are mounted on two sides of the roller shaft groove 13, a roller shaft 15 is mounted between the two bearings 14, the middle diameter of the roller shaft 15 is greater than the diameter of the bearing 14, and as shown in fig. 5, one end of the motor rotor 20 is supported between the two roller shafts 15; further, in order to facilitate the maintenance of the rotor, the two roll shafts 15 on the same side can rotate, as shown in fig. 7, a speed reduction motor 16 is connected to the outer sides of the two roll shafts 15, and the roll shafts 15 are driven to rotate by the speed reduction motor 16, so as to drive the motor rotor 20 to rotate.

As shown in fig. 4, which is a schematic view of a connection structure at the bottom of the support platform 10, a convex rotating seat 17 is arranged on the bottom surface of the support seat 11, the rotating seat 17 is hinged between the second rotating shafts 6 at the upper ends of the two arc-shaped support arms 2, and the support platform 10 can rotate around the second rotating shafts 6; the leveling devices 18 are two second hydraulic rods, the bottom ends of the two second hydraulic rods are respectively hinged on a first hinge part 4 arranged at the middle lower part of the back surfaces of the two arc-shaped supporting arms 2, and the upper ends of the two second hydraulic rods are hinged on the bottom surface of the supporting seat 11; the two second hydraulic rods stretch and retract to drive the supporting platform 10 to rotate around the second rotating shaft 6, so that the supporting platform 10 is adjusted to be in a horizontal state.

The working principle of the lifting machine is as follows: referring to fig. 8, which is a state diagram of the lifter at the initial time, the supporting platform 10 is parked on the ground, the width of the supporting seat 11 is larger than that of the groove 19 on the ground, the supporting seat 11 spans the groove 19, and the supporting frame 1, the lifting device 8 and the leveling device 18 are retracted in the groove 19; horizontally placing the motor rotor 20 on a lifting machine, and erecting two ends of the motor rotor 20 on a roller shaft device; the controller is used for controlling the first hydraulic rod to extend, the first hydraulic rod jacks the whole lifting machine backwards, the extending length of the first hydraulic rod is controlled to control the ground clearance of the motor rotor 20, the ground clearance of the motor rotor 20 is preferably 1m-1.5m, and the electronic rotor is overhauled without stooping; the second hydraulic rod needs to be synchronously adjusted during the process of the first hydraulic rod extending and retracting so that the supporting platform 10 is kept horizontal, otherwise the supporting platform 10 is inclined laterally and the motor rotor 20 is easy to fall off. The telescopic action of the second hydraulic rod can be manually adjusted by an independent controller; a more intelligent adjustment mode is that a sensor for detecting levelness is installed on the supporting platform 10 and sent to the controller, and the controller adjusts the stretching amount of the second hydraulic rod according to the detected levelness, so that the supporting platform 10 keeps dynamic level.

It is to be understood that the present invention has been described with reference to certain embodiments, and that various changes or equivalents may be substituted for elements thereof by those skilled in the art without departing from the spirit and scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from the essential scope thereof. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of the present application are intended to be covered by the present invention.

Claims

1. A kind of electric motor rotor maintenance uses the hoist, including two sets of lifting devices installed symmetrically, the structure of two sets of lifting devices is the same, each supports one end of the electric motor rotor (20); it is characterized in that each set of lifting device comprises,

the support frame (1) comprises an arc-shaped support arm (2) bent forwards, and the bottom end of the arc-shaped support arm (2) is hinged to the first rotating shaft (5);

the lifting device (8) is a first hydraulic rod, the first hydraulic rod is installed on the front side of the support frame (1), the upper end of the first hydraulic rod is hinged to the middle upper part of the front surface of the arc-shaped support arm (2), and the lower end of the first hydraulic rod extends forwards and downwards and is hinged to a fourth rotating shaft (9); the first hydraulic rod stretches and retracts to drive the support frame (1) to rotate around the first rotating shaft (5);

the supporting platform (10) comprises a supporting base (11), two groups of identical roller shaft devices are symmetrically arranged on the inner side of the upper surface of the supporting base (11), each group of roller shaft devices comprises a base (12), a V-shaped clamping groove is formed between the two bases (12), a roller shaft (15) is rotatably arranged on each base (12), and one end of a motor rotor (20) is supported between the two roller shafts (15); the bottom surface of the supporting seat (11) is provided with a convex rotating seat (17), and the rotating seat (17) is hinged at the upper end of the arc-shaped supporting arm (2);

the leveling device (18) is a second hydraulic rod, the bottom end of the second hydraulic rod is hinged to a first hinged portion (4) arranged on the middle lower portion of the back face of the arc-shaped supporting arm (2), the upper end of the second hydraulic rod is hinged to the bottom face of the supporting seat (11), and the second hydraulic rod stretches and retracts to drive the supporting platform (10) to rotate, so that the supporting platform (10) is adjusted to be in a horizontal state.

2. The motor rotor maintenance lifting machine according to claim 1, wherein: the support frame (1) comprises two arc-shaped support arms (2) which are symmetrically arranged, and the two arc-shaped support arms (2) are connected through a plurality of transverse connecting columns (3); the upper ends of the two arc-shaped supporting arms (2) are penetrated by a transverse second rotating shaft (6), and a rotating seat (17) on the bottom surface of the supporting seat (11) is hinged between the second rotating shafts (6) at the upper ends of the two arc-shaped supporting arms (2); the middle upper part in front of the two arc-shaped supporting arms (2) is provided with a transverse third rotating shaft (7), and the upper end of the first hydraulic rod is hinged on the third rotating shaft (7) on the supporting frame (1).

3. The motor rotor maintenance lifting machine according to claim 1, wherein: base (12) upper portion is equipped with roller groove (13), and bearing (14) are installed to roller groove (13) both sides, installs roller (15) between two bearing (14), and the diameter is greater than bearing (14) diameter in the middle of roller (15).

4. The motor rotor maintenance lifting machine according to claim 1, wherein: a speed reducing motor (16) is connected with the outer sides of the two roll shafts (15) on the same side, and the roll shafts (15) are driven to rotate through the speed reducing motor (16), so that a motor rotor (20) is driven to rotate.

5. A lifter for repairing a rotor of an electric machine according to any one of claims 1 to 4, wherein: the lifting machine is arranged on the ground, two parallel grooves (19) are formed in the ground, the two sets of lifting devices are symmetrically arranged in the two grooves (19), the lifting devices are contracted in the grooves (19) in a contraction state, the width of the supporting seat (11) is larger than that of the grooves (19) in the ground, and the supporting seat (11) stretches across the grooves (19) and is parked on the ground.

6. The motor rotor maintenance lifting machine according to claim 5, wherein: and a sensor for detecting levelness is arranged on the supporting platform (10) and is sent to the controller, and the controller adjusts the telescopic amount of the second hydraulic rod according to the detected levelness, so that the supporting platform (10) is kept in a dynamic level state.