CN210806964U

CN210806964U - Rotor dynamic balance supporting device

Info

Publication number: CN210806964U
Application number: CN201922493513.1U
Authority: CN
Inventors: 赵栗森
Original assignee: Hubei Shendian Auto Motor Co ltd
Current assignee: Hubei Shendian Auto Motor Co ltd
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-06-19
Anticipated expiration: 2029-12-31

Abstract

The utility model provides a rotor dynamic balance strutting arrangement belongs to the experimental auxiliary device field of electromechanical device, and it mainly includes first support, the second support of base and symmetry setting on the base, first support and second support are equipped with radial support rotor bearing's first supporting shoe and second supporting shoe respectively, be equipped with the telescopic machanism who makes first supporting shoe horizontal axial displacement on the first support, first supporting shoe and second supporting shoe are half annular shell structure for the cross-section to the inner wall at the shell structure who is close to rotor one end forms a V-arrangement brace table along the arch that is equipped with two relative settings, has solved the regional narrower technical problem of present rotor support position, thereby has effectively improved the accuracy of measuring initial unbalance amount, can extensively be used for rotor measurement test.

Description

Rotor dynamic balance supporting device

Technical Field

The utility model relates to an experimental auxiliary device field of electromechanical device, concretely relates to rotor dynamic balance strutting arrangement.

Background

Electrical machines are relatively common devices in the electromechanical field, wherein the rotor is an important working component of the electrical machine. In the production process of the rotor, due to the reasons of unreasonable design, uneven material quality, processing and assembling errors and the like, an initial unbalance amount inevitably exists, and a rotor dynamic balance test is a common method for measuring and correcting the unbalance amount of the motor rotor.

Traditional rotor dynamic balance supports at the bearing position, the rotational speed is more stable when measuring initial dynamic unbalance amount, because the position that present neotype rotor mostly does not have bearing position or bearing position is narrower (for example QDJ2410-200 type rotor), the copper wire winding of rotor afterbody partly stretches out outward along the rotor axial simultaneously, when leading to adopting the radial support of traditional mode on sun gear rear end bearing position, the width in radial support position region only has 1 ~ 1.5mm, the drunkenness around the rotor during simultaneous measurement, the change of support position very easily makes V type supporting shoe collide with the sun gear contact, the rotational speed is unstable and initial dynamic unbalance amount that can't measure the rotor during leading to measuring, the defective rate that produces has about 10%.

SUMMERY OF THE UTILITY MODEL

The to-be-solved problem of the utility model is to the above-mentioned not enough and provide a rotor dynamic balance strutting arrangement that exists among the prior art, solve mention among the background art because the regional narrow technical problem who leads to measuring initial unbalance amount inaccurate of support position.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a rotor dynamic balance strutting arrangement, includes that base and symmetry set up first support, the second support on the base, first support and second support are equipped with radial first supporting shoe and the second supporting shoe that supports rotor bearing respectively, be equipped with the telescopic machanism who makes first supporting shoe horizontal axial displacement on the first support, first supporting shoe and second supporting shoe are half annular shell structure so that it can stretch into rotor optical axis position all, first supporting shoe and second supporting shoe are close to the shell structure's of rotor one end inner wall along radially being equipped with the arch of two relative settings, and two archs constitution V-arrangement brace tables to make rotor bearing and the contact of V-arrangement brace table.

Compared with the prior art, the utility model discloses following beneficial effect has: through be equipped with the telescopic machanism who makes first supporting shoe horizontal axis displacement on first support, establish first supporting shoe into mobilizable support mode, and establish first supporting shoe and second supporting shoe into the shell structure that the cross-section is the semicircle annular, can effectually stretch into rotor optical axis position with the supporting shoe, thereby widen the holding position region, can also avoid the supporting shoe and rotor winding's collision, and collide with the sun gear contact, the initial unbalance amount measuring accuracy of rotor has effectively been improved, efficiency has been improved simultaneously and has been avoided repetitious measurements many times.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.

Drawings

FIG. 1 is a schematic structural view of an embodiment of the present invention with a rotor mounted thereon;

FIG. 2 is an enlarged view of a portion of FIG. 1 at C;

fig. 3 is a schematic structural diagram of a first supporting block in an embodiment of the present invention;

FIG. 4 is a cross-sectional view taken along line A-A of FIG. 3;

fig. 5 is another schematic structural diagram of the first support block in the embodiment of the present invention;

fig. 6 is a sectional view taken along line B-B of fig. 5.

Reference numerals: the device comprises a base 1, a first support 2, a second support 3, a first support block 21, a second support block 22, a telescopic mechanism 4, a V-shaped support platform 210, a connecting plate 31, a vertical chute 200, a locking device 310, a sliding block 202, a horizontal chute 100, a strip-shaped connecting block 32, a notch 211, a heat dissipation groove 212, a winding 500, a bearing position 501 and a sun wheel 511.

Detailed Description

In order to make the utility model realize that technical means, creation characteristics, achievement purpose and effect are clearer and easily understand, it is right to combine below the figure and the detailed implementation mode the utility model discloses do further explanation:

as shown in fig. 1 to 6, an embodiment of the present invention provides a dynamic balance supporting device for a rotor, including a base 1, and a first support 2 and a second support 3 symmetrically disposed on the base 1, wherein the first support 2 and the second support 3 are respectively provided with a first support block 21 and a second support block 22 for radially supporting a rotor bearing, the support blocks can be V-shaped support blocks made of hard alloy, the first support 2 is provided with a telescopic mechanism 4 for horizontally and axially moving the first support block 21, the first support block 21 is fixedly connected to a telescopic end of the telescopic mechanism 4, so that the telescopic mechanism 4 drives the first support block 21 to move in a reciprocating manner, the first support block 21 is changed into a movable support, the distance of axial movement can be controlled, when the rotor is placed, the telescopic mechanism 4 works to retract the first support block 21 in a direction away from the second support block 22, at this time, the rotor can be grasped and placed at a designated measuring station by a manipulator, namely, one end of the rotor is in a suspended state, the other end of the rotor is placed on the second supporting block 22, then the telescopic mechanism 4 works to stretch out the first supporting block 21 towards the second supporting block 22, and stretches out to a preset position along the axial direction, namely, the optical axis position between the sun gear 511 and the winding 500 on the rotor rotating shaft is stretched, so that the supporting area position of the rotor, namely the bearing position 501, is widened, the manipulator is loosened to exit at the moment, the rotor is placed in place, the dynamic balance measurement of the rotor can be carried out, and the first supporting block 21 can be effectively avoided from colliding with the rotor winding 500.

In some embodiments, the telescopic mechanism 4 generally adopts a telescopic cylinder, and can also adopt a lead screw to slide and stretch, and a telescopic stroke distance is preset as required, and certainly, a multi-stage telescopic cylinder can also be adopted. As shown in fig. 3 and 4, in order to facilitate the first supporting block 21 to further extend into the optical axis position between the sun gear 511 and the winding 500 of the rotor, the first supporting block 21 and the second supporting block 22 are shell structures with semicircular cross sections, so that both the first supporting block 21 and the second supporting block can extend into the optical axis position of the rotor, and thus the first supporting block 21 can be prevented from dropping off due to the large-amplitude jumping of the rotor, so that the limiting effect is achieved, two opposite protrusions are arranged along the radial direction on the inner wall of the shell structure near one end of the rotor, and the protrusions form a V-shaped supporting platform 210, so that the rotor bearing is in contact with the V-shaped supporting platform 210, thereby effectively avoiding the collision between the sun gear 511 and the inner wall of the shell, and reducing the abrasion between the rotating shaft and the supporting plates, of course, lubricating oil is generally coated on the contact upper surface of the V.

In some embodiments, as shown in fig. 5 and 6, in order to further reduce the wear, a notch 211 penetrating through the housing structure is formed between two opposite V-shaped upper surfaces of the V-shaped support platform 210 along the radial direction, so as to perform a heat dissipation function, and further, a heat dissipation groove 212 may be formed on the V-shaped upper surface of the V-shaped support platform 210 along the notch 211, so as to reduce the wear and better dissipate the heat.

In some embodiments, in order to facilitate the application of different rotor measurements, the telescopic mechanism 4 is vertically slidably connected to the first support 2, so as to drive the first support block 21 to be vertically adjustable, and to be suitable for the measurement of rotors with different outer diameters at two ends of the support, specifically, the bottom of the telescopic mechanism 4 is provided with the connecting plate 31, the first support 2 is provided with the vertical chute 200, the connecting plate 31 is vertically slidably connected to the vertical chute 200, the connecting plate 31 is provided with the locking device 310 for fixing the connecting plate 31 to the first support 2, for example, a locking bolt is enough, so as to adjust the height of the first support block 21, and similarly, the second support block 22 on the second support 3 can also be vertically slidably connected to the second support 3. In order to be suitable for rotor measurement with different axial lengths, the first support 2 and the second support 3 are in linear sliding connection with the bottom plate, specifically, sliding blocks 202 are arranged at the bottoms of the first support 2 and the second support 3, a horizontal sliding groove 100 matched with the sliding blocks 202 is formed in the base 1, the sliding blocks 202 are in linear sliding connection in the horizontal sliding groove 100, in order to enable the supports to be more stable when the supports are locked, the first support 2 and the second support 3 are L-shaped supports, and the horizontal plane supporting ends of the L-shaped supports are preferably inward, namely face the rotor.

In some embodiments, in order to facilitate the height adjustment of the first support block 21, the first support block 21 is connected with the telescopic end of the telescopic mechanism 4 through the bar-shaped connecting block 32, the bar-shaped connecting block 32 is a vertical long strip-shaped structure, the telescopic end of the telescopic mechanism 4 is fixedly connected with one end of the bar-shaped connecting block 32, the other end of the bar-shaped connecting block 32 is fixedly connected with one end of the first support block 21, which deviates from the rotor, namely, the first support block 21 is fixedly connected with the lower half part of the bar-shaped connecting block 32, and the telescopic end of the telescopic mechanism 4 is fixedly connected with the upper half part of the opposite surface of the bar-shaped connecting block 32.

The utility model has the use principle that before use, the first support 2 and the second support 3 on the sliding adjusting base 1 are fixed to the preset positions, the connecting plate 31 on the first support 2 is adjusted and locked so as to adjust the height position of the first supporting block 21, and the telescopic stroke distance of the sliding table cylinder is adjusted; when placing the rotor, slip table cylinder work is with first supporting shoe 21 toward keeping away from the withdrawal of second supporting shoe 22 direction, grasp with the manipulator and put in appointed measurement station in advance with the rotor, the one end of rotor is in unsettled state this moment, the rotor other end is placed on the second supporting shoe 22, then slip table cylinder work stretches out first supporting shoe 21 toward second supporting shoe 22 direction, stretch out to preset position along the axial, stretch into the optical axis position between pivot and the rotor winding 500 promptly, so that the support region position of rotor obtains the widening, the manipulator is loosened and is withdrawed from this moment, the rotor is placed in place, can carry out the dynamic balance of rotor and measure. Use the utility model discloses can effectual widen the support position region of rotor, can also effectively avoid first supporting block 21 to collide rotor winding 500, bushing position and V type brace table contact rotation are steady during the measurement, and the erroneous judgement that the rotational speed is inaccurate to result in when having stopped the detection of initial unbalance amount improves efficiency simultaneously, avoids a lot of repetition measurement.

Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.

Claims

1. The utility model provides a rotor dynamic balance strutting arrangement, includes base (1), first support (2) and second support (3) that the symmetry set up on base (1), first support (2) and second support (3) are equipped with first supporting shoe (21) and second supporting shoe (22) that support rotor bearing respectively, its characterized in that: be equipped with on first support (2) and make first supporting shoe (21) horizontal axial displacement's telescopic machanism (4), first supporting shoe (21) and second supporting shoe (22) are the shell structure that the cross-section is half annular so that it homoenergetic stretches into rotor optical axis position, first supporting shoe (21) and second supporting shoe (22) are close to the inner wall of the shell structure of rotor one end and radially are equipped with the arch of two relative settings, and two archs constitute V-arrangement brace table (210) to make rotor bearing and V-arrangement brace table (210) contact.

2. A rotor dynamic balance support device according to claim 1, wherein: the telescopic mechanism (4) is a telescopic cylinder.

3. A rotor dynamic balance support device according to claim 1, wherein: the bottom of telescopic machanism (4) is equipped with connecting plate (31), first support (2) are equipped with vertical spout (200), sliding connection about connecting plate (31) and vertical spout (200), be equipped with locking device (310) of fixed connection board (31) and first support (2) on connecting plate (31).

4. A rotor dynamic balance support device according to claim 1, wherein: the base is characterized in that sliding blocks (202) are arranged at the bottoms of the first support (2) and the second support (3), horizontal sliding grooves (100) matched with the sliding blocks (202) are formed in the base (1), and the sliding blocks (202) are connected in the horizontal sliding grooves (100) in a sliding mode.

5. A rotor dynamic balance support device according to claim 1, wherein: first supporting block (21) are through bar connecting block (32) and telescopic machanism (4) fixed connection, bar connecting block (32) are vertical elongated structure, the flexible end and the bar connecting block (32) one end rigid coupling of telescopic machanism (4), the bar connecting block (32) other end and first supporting block (21) deviate from the one end rigid coupling of rotor.

6. A rotor dynamic balance support device according to any one of claims 1 to 5, wherein: and a notch (211) penetrating through the shell structure is formed between two opposite V-shaped upper surfaces of the V-shaped support platform (210) along the radial direction.

7. A rotor dynamic balance support device according to claim 1, wherein: and the V-shaped upper surface of the V-shaped support platform (210) is provided with a heat dissipation groove (212) along the direction of the notch (211).

8. A rotor dynamic balance support device according to any one of claims 1 to 5, wherein: the first support (2) and the second support (3) are L-shaped supports.