CN210007547U

CN210007547U - balance mechanism for vortex compressor motor

Info

Publication number: CN210007547U
Application number: CN201920910323.2U
Authority: CN
Inventors: 金鸣镝
Original assignee: SUZHOU BAISHITENG ELECTRICAL CO Ltd
Current assignee: SUZHOU BAISHITENG ELECTRICAL CO Ltd
Priority date: 2019-06-17
Filing date: 2019-06-17
Publication date: 2020-01-31
Anticipated expiration: 2029-06-17

Abstract

The utility model discloses a a balance mechanism for scroll compressor motor, which comprises a fixing plate and i, the guide bar, balancing weight and locking piece, the guide bar sets up on the fixed plate, the balancing weight slides and sets up on the guide bar, and it is fixed with balancing weight and guide bar to utilize the locking piece, and then adjust the distance between balancing weight and the motor shaft, through lead screw and balancing weight screw-thread fit, convert circular motion into linear motion, and then realize the fine setting of balancing weight at radial position, reach the fine setting to rotor dynamic balance, through the cooperation at recess and second recess, and set up the second recess into the non-groove that runs through, application rotor centrifugal force, and the characteristic of cooperation magnet, guaranteed that the locking piece is convenient to install in recess and second recess, and then lock balancing weight and guide bar, and when demolising locking piece, through the structure at recess both ends, can be convenient demolish locking piece.

Description

balance mechanism for vortex compressor motor

Technical Field

The utility model relates to a motor field, in particular to kinds of balance mechanism for scroll compressor motor.

Background

In the production process of the motor rotor, the unbalance of the rotor weight can be caused by the influence of various factors (such as air holes or shrinkage holes of uneven casting of materials, errors of part weight, machining errors and the like), so the rotor needs to be balanced after assembly, in order to ensure that the motor rotates stably, balancing blocks are arranged on the compressor motor rotor or the motor rotor, in the prior art, the balancing blocks are mainly of two types, types are formed by independently overlapping single balancing blocks, the weight of the balancing blocks is adjusted through the number of the balancing blocks and are arranged on the rotor through holes, and types of balancing blocks are formed by directly die-casting aluminum.

The balance block formed by the single piece of the balance sheet which is separately overlapped has the following problems:

the weight of the balance block is controlled by adopting the balance pieces, the weight of each balance piece is fixed, the adjustment block cannot be finely adjusted, and the weight of each balance piece is adjusted by multiple times of the weight of the balance piece;

the balance block formed by die casting is a special part, needs to be produced according to different requirements, and is narrow in application range.

Particularly, the motor used for the scroll compressor has high requirement on balance, needs small vibration during operation, operates stably, and puts higher requirement on the dynamic balance of the motor.

SUMMERY OF THE UTILITY MODEL

To the defect that prior art exists above, the utility model discloses a main aim at overcomes prior art's weak point, discloses kinds of balance mechanism for scroll compressor motor, including fixed plate, guide bar, balancing weight and locking piece, the guide bar sets up on the fixed plate, the balancing weight slides and sets up on the guide bar, and utilize the locking piece will the balancing weight with the guide bar is fixed, and then adjusts distance between balancing weight and the motor shaft.

, the guide bar comprises a screw rod, and two ends of the screw rod are fixed on the fixing plate.

, arranging a groove along the axial direction of the side wall of the screw rod, arranging a through screw hole on the counterweight block, matching the screw hole with the screw rod, axially and concavely arranging a non-through second groove in the screw hole, arranging the non-through end of the second groove at a position far away from the rotor rotating shaft, when locking, overlapping the groove and the second groove, and arranging the locking piece in the groove and the second groove.

, the lock is in interference fit with the groove and the second groove.

, an attraction layer is disposed in the second groove of the weight member and attracted by the magnet, and the locking member is a magnet.

, the fixing plate is of a circular structure.

, the guide rod is arranged in the diameter direction of the fixing plate.

, several fixing holes are set on the fixing board, the fixing holes are on the same circumference , and fixed with the motor rotor through the fixing holes.

, a notch is formed on the fixing plate where the guide rod is arranged for the fixing plate and the guide rod to reach self-balance.

The utility model discloses the beneficial effect who gains:

through lead screw and balancing weight screw-thread fit, convert circular motion into linear motion, and then realize the balancing weight at the fine setting of radial position, reach the fine setting to rotor dynamic balance, through the cooperation at recess and second recess, and set up the second recess into the non-groove that runs through, application rotor centrifugal force, and the characteristic of cooperation magnet, guaranteed that the locking piece is convenient install in recess and second recess, and then with balancing weight and guide bar locking, and when demolising the locking piece, through the structure at recess both ends, can be convenient demolish the locking piece.

Drawings

Fig. 1 is a perspective view of balancing mechanisms for scroll compressor motors according to the present invention;

fig. 2 is an exploded view of balancing mechanisms for scroll compressor motors according to the present invention;

FIG. 3 is a schematic structural view of a weight member;

FIG. 4 is a schematic structural view of a screw rod;

FIG. 5 is a diagram illustrating the usage of the lead screw and the weight block;

the reference numbers are as follows:

1. fixing plate, 2, guide bar, 3, balancing weight, 4, locking piece, 11, fixing hole, 12, notch, 21, lead screw, 22, th groove, 31, screw hole, 32 and second groove.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in detail below in with reference to the accompanying drawings and embodiments.

The utility model discloses a balance mechanism for scroll compressor motor, as shown in fig. 1-2, including fixed plate 1, guide bar 2, balancing weight 3 and locking piece 4, set up the through-hole 12 that allows the rotor pivot to pass through on the fixed plate 1. the fixed setting of guide bar 2 is on fixed plate 1, balancing weight 3 slides and sets up on guide bar 2, and then adjusts balancing weight 3 relative position on guide bar 2, and fix 2 remaining balancing weights 3 of guide bar through locking piece 4. when using, the through-hole 12 is passed in the pivot, and fixed plate 1 is fixed the tip that sets up the rotor at the motor, through adjusting balancing weight 3 position on guide bar 2, and then adjust the distance between balancing weight 3 and the rotor pivot, realize the balanced regulation of rotor.

In embodiment, as shown in fig. 1-5, the guide rod 2 includes a screw rod 21, both ends of which are fixedly disposed on the fixing plate 1, the counterweight block 3 is screw-engaged with the screw rod 21, and the position of the counterweight block 3 is adjusted by rotating the counterweight block 3, wherein the locking member may be a nut screw-engaged with the screw rod 21, and after the counterweight block 3 is adjusted, both ends of the counterweight block are limited by the nut screw, in preferred embodiment, a groove 22 is axially disposed on a side wall of the screw rod 21, the counterweight block 3 is provided with a through screw hole 31, and the screw hole 31 is screw-engaged with the screw rod 21, a non-through second groove 32 is axially disposed in the screw hole 31, that is, only the end of the second groove 32 is through the end of the counterweight block 3, and the non-through end of the second groove 32 is disposed at a position far from the rotation axis of the rotor, when locking, the groove 22 is overlapped with the second groove 32 (the groove 22 is opposite to the opening of the second groove 32), the locking member 4 is disposed in the groove 22 and the second groove 32, thereby achieving the fixing of the groove 22 and the second groove 32, preventing the rotation of the counterweight block from occurring, and the counterweight block the rotation of the rotor, and the rotor is always able to prevent the second groove from.

In the above embodiment, the locking member 4 is in interference fit with the th groove 22 and the second groove 32, so that the locking member 4 is prevented from moving axially along the screw 21, and the balancing weight 3 is unlocked from the screw 21.

In another embodiment, an attraction layer capable of being attracted by a magnet is disposed in the second groove 32 of the weight 3, and the locking member 4 is a magnet, it can be understood that when the locking member is disposed in the groove 22 and the second groove 32, the magnet is fixed to the attraction layer, and the locking member 4 is prevented from freely falling down by the magnet and the attraction layer, so that the weight 3 is unlocked from the screw 21.

In the embodiment, the fixing plate 1 has a circular structure, which makes the fixing plate 1 reach balance by itself, preferably, the guide rods 2 are arranged in the diameter direction of the fixing plate 1, namely, outwards from the center of a circle.

In the embodiment, a plurality of fixing holes 11 are provided on the fixing plate 1, and the fixing holes 11 are on the same circumference , and the fixing plate 1 and the motor rotor are fixedly installed through the fixing holes 11.

In the embodiment, the fixing plate 1 is provided with a notch 12 at the guide bar 2 for self-balancing the fixing plate 1 and the guide bar 2.

The utility model discloses when using, as shown in fig. 1-5, install fixed plate 1 on the rotor through fixed orifices 11, and change the direction of mating of balancing weight 3 through rotating fixed plate 1, then through extracting locking piece 4, rotate balancing weight 3 and adjust its position on guide bar 2, then coincide recess 22 with second recess 32, insert locking piece 4 again, lock balancing weight 3 with guide bar 2 advancing the action balance detection, repeat above-mentioned step until the rotor reaches the action balance the method of demolising of locking piece 4 is as follows, insert from recess 22 through the pole, withstand locking piece 4, promote locking piece 4 to the centre of a circle promotion of rotor, make locking piece 4 leave second recess 32, realize the unblock to guide bar 2 and balancing weight 3. in addition, if need increase the weight of balancing weight 3, then can pass through the screw fixation on balancing weight 3 with the counterweight.

The above are only preferred embodiments of the present invention, and are not intended to limit the scope of the present invention; the scope of the appended claims should be accorded the broadest interpretation so as to encompass all such modifications and equivalent arrangements as is within the spirit and scope of the present invention.

Claims

1, a balance mechanism for scroll compressor motor, its characterized in that, including fixed plate, guide bar, balancing weight and locking piece, the guide bar sets up on the fixed plate, the balancing weight slides and sets up on the guide bar, and utilize the locking piece will the balancing weight with the guide bar is fixed, and then adjusts distance between balancing weight and the motor shaft.

2. The balance mechanism for a scroll compressor motor of claim 1, wherein the guide bar comprises a lead screw having both ends fixed to the fixed plate.

3. The balance mechanism for a scroll compressor motor according to claim 2, wherein the screw has a th groove along its axial direction, the weight has a threaded hole therethrough, and the threaded hole is threadedly engaged with the screw, a non-through second groove is axially recessed in the threaded hole, the non-through end of the second groove is disposed away from the rotor shaft, and when locked, the th groove coincides with the second groove, and the locking member is disposed in the th groove and the second groove.

4. The counterbalance mechanism for a scroll compressor motor of claim 3, wherein the lock is in interference fit with the groove and the second groove.

5. The balance mechanism for a scroll compressor motor according to claim 3, wherein an attraction layer capable of being attracted by a magnet is disposed in the second recess of the weight, and the locking member is a magnet.

6. The balance mechanism for a scroll compressor motor of claim 1, wherein the fixed plate is of circular configuration.

7. The balance mechanism for a scroll compressor motor of claim 6, wherein the guide rod is disposed in a diameter direction of the fixed plate.

8. The balance mechanism for a scroll compressor motor of claim 6, wherein the fixing plate has a plurality of fixing holes, the fixing holes are located on the same circumference , and the fixing holes are fixed with the motor rotor.

9. The balance mechanism for a scroll compressor motor of claim 1, wherein the fixing plate is provided with a notch where the guide bar is provided for the fixing plate and the guide bar to reach self-balance.