CN211288010U - Combined compressor rotor balance block - Google Patents

Abstract

The utility model belongs to the technical field of the balancing piece technique and specifically relates to a modular compressor rotor balancing piece, including balancing piece body, balancing piece body is the arc, the mounting hole has been seted up perpendicularly on the balancing piece main part tip, just the welding has first balancing weight on the lateral wall of balancing piece body one side, the shape of first balancing weight agrees with the balancing piece body mutually, a plurality of weight ports have been seted up to balancing piece body cambered surface inner circle the weight port includes big weight port and little weight port, big weight port has and only has one, big weight port includes first sliding hole and second sliding hole, first sliding hole is seted up perpendicularly from balancing piece body inner circle cambered surface, thereby second sliding hole balancing piece body outer lane cambered surface is seted up perpendicularly, first sliding hole and second sliding hole intercommunication. The utility model discloses when the rotor is rotatory, the centrifugal force of production can make the balancing weight tightly compact downthehole at the balancing weight, can not throw away because of the rotor rotates.

Description

Combined compressor rotor balance block

Technical Field

The utility model relates to a balancing piece technical field especially relates to a modular compressor rotor balancing piece.

Background

The balance weight of the existing compressor is usually cast or punched integrally, and the weight and the mass center of the balance weight are fixed and cannot be adjusted. However, compressors of different displacement models must use counterweights of different masses and centroids to balance the eccentric forces due to the difference in eccentric weight or motor height.

Therefore, the existing balance block can only be matched with one compressor type for use, and the universality is poor. Different molds are needed for manufacturing different balance blocks, the mold opening cost is higher, and the manufacturing cost is increased.

In order to solve the above problems, the patent No. CN201520764106.9 discloses a combined balance block, but in practical applications, it is found that a certain vibration is generated when the rotor is closed and started, and after a long time, the filling block falls off from the counter bore, which results in the compressor being unable to be used normally.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the shortcoming that the filling block can drop from the counter bore and lead to the unable normal use of compressor among the prior art, and a modular compressor rotor balancing piece that provides.

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

the design relates to a combined compressor rotor balancing block, which comprises a balancing block body, wherein the balancing block body is arc-shaped, the end part of the balancing block body is vertically provided with a mounting hole, the side wall of one side of the balancing block body is welded with a first balancing block, the shape of the first balancing block is matched with the balancing block body, the inner arc surface of the balancing block body is provided with a plurality of balancing holes, each balancing hole comprises a large balancing hole and only one small balancing hole, each large balancing hole comprises a first sliding hole and a second sliding hole, the first sliding hole is vertically arranged from the inner arc surface of the balancing block, the second sliding hole is vertically arranged from the outer arc surface of the balancing block body, the first sliding hole is communicated with the second sliding hole, the central axis of the first sliding hole and the central axis of the second sliding hole are positioned on the same straight line, and the diameter length of the second sliding hole is smaller than that of the first sliding hole, the little weight port has a plurality ofly, just little weight port evenly distributed is in big weight port both sides, just little weight port is about the central line symmetrical arrangement of balancing piece body, little weight port includes third sliding hole and fourth sliding hole, the third sliding hole is seted up perpendicularly from balancing piece inner circle cambered surface, thereby fourth sliding hole balancing piece body outer lane cambered surface is seted up perpendicularly, third sliding hole and fourth sliding hole intercommunication, just the axis of third sliding hole and the axis of fourth sliding hole are in on the same straight line, the diameter length of fourth sliding hole is less than the diameter length of third sliding hole, the downthehole second balancing weight that has all the cartridge of big weight.

Preferably, the second balancing weight includes conical kicking block, little balancing weight and big balancing weight, the kicking block welding is on little balancing weight one end terminal surface, the perpendicular welding of little balancing weight other end is on big balancing weight terminal surface, big balancing weight slidable mounting is in first sliding hole, little balancing weight slidable mounting is in the second sliding hole, the kicking block extends to the external world from the second sliding hole in, the maximum diameter length of big balancing weight is greater than the diameter length of second sliding hole.

Preferably, the small counterweight hole is internally provided with a corresponding counterweight block.

Preferably, the small weight ports symmetrical about the center line of the balance weight body are on the same circumference.

The utility model provides a modular compressor rotor balancing piece, beneficial effect lies in: this combined compressor rotor balancing piece welds corresponding first balancing weight on the balancing piece body, the downthehole balancing weight that installs of little balancing weight corresponds, the quality that makes the balancing weight is in the within range that the rotor allows, then to the downthehole balancing weight of packing into of balancing weight, the weight and the focus of adjustment balancing weight, thereby it is required to adapt to different rotors, this balancing weight passes through the mounting hole and installs perpendicularly on the rotor lateral wall, balancing hole perpendicular to rotor axis, when the rotor is rotatory, the centrifugal force that produces can make the balancing weight tightly compact at the balancing weight downthehole, can not throw away because of the rotor rotates.

Drawings

Fig. 1 is a perspective view of a combined compressor rotor balance block provided by the present invention.

Fig. 2 is a side view of the combined compressor rotor balance weight provided by the present invention.

Fig. 3 is a top sectional view of the combined compressor rotor balance block provided by the present invention.

Fig. 4 is a schematic view of a counterweight structure of a combined compressor rotor balance block according to the present invention.

In the figure: the balance weight comprises a balance weight body 1, a mounting hole 2, a first balance weight block 3, a large balance weight hole 4, a first sliding hole 401, a second sliding hole 402, a small balance weight hole 5, a third sliding hole 501, a fourth sliding hole 502, a second balance weight block 6, a top block 601, a small balance weight block 602 and a large balance weight block 603.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Example 1

Referring to fig. 1-3, a combined compressor rotor balancing block comprises a balancing block body 1, wherein the balancing block body 1 is arc-shaped, an installation hole 2 is vertically formed in the end part of the balancing block body 1, a first balancing weight 3 is welded on the side wall of one side of the balancing block body 1, the shape of the first balancing weight 3 is matched with that of the balancing block body 1, a plurality of balancing weight holes are formed in the inner ring of the arc surface of the balancing block body 1, the balancing weight holes comprise large balancing weight holes 4 and small balancing weight holes 5, only one large balancing weight hole 4 is provided, the large balancing weight hole 4 comprises a first sliding hole 401 and a second sliding hole 402, the first sliding hole 401 is vertically formed from the arc surface of the inner ring of the balancing block body 1, the second sliding hole 402 is vertically formed from the arc surface of the outer ring of the balancing block body 1, the first sliding hole 401 is communicated with the second sliding hole 402, and the central axes of the first, the length of the diameter of the second slide port 402 is smaller than that of the first slide port 401, and the small weight ports 5 are plural, the small weight holes 5 are evenly distributed on two sides of the large weight hole 4, the small weight holes 5 are symmetrically arranged about the center line of the balance block body 1, and a group of small weight ports 5 symmetrical about the center line of the balance weight body 1 are positioned on the same circumference, the small weight ports 5 include a third sliding port 501 and a fourth sliding port 502, the third sliding port 501 is vertically provided from the arc surface of the inner ring of the balance weight body 1, the fourth sliding port 502 is vertically provided so that the arc surface of the outer ring of the balance weight body 1, the third sliding port 501 is communicated with the fourth sliding port 502, and the central axis of the third sliding hole 501 and the central axis of the fourth sliding hole 502 are on the same straight line, the diameter length of the fourth sliding hole 502 is smaller than that of the third sliding hole 501, and the second balancing weights 6 are inserted into the large weight holes 4. Corresponding first balancing weight 3 of welding on balancing piece body 1, install corresponding balancing weight in the little weight port 5, the quality that makes the balancing weight is in the within range that the rotor allows, then pack the balancing weight into to the balancing weight downthehole, the weight and the focus of adjustment balancing weight, thereby it is required to adapt to different rotors, this balancing weight passes through mounting hole 2 and installs perpendicularly on the rotor lateral wall, balancing weight port perpendicular to rotor axis, when the rotor is rotatory, the centrifugal force that produces can make the balancing weight tightly compact at the balancing weight downthehole, can not throw away because of the rotor rotates.

Example 2

Referring to fig. 4, on the basis of the above embodiment 1, the second balancing weight 6 includes a conical top block 601, a small balancing weight 602, and a large balancing weight 603, the top block 601 is welded on an end face of the small balancing weight 602, the other end of the small balancing weight 602 is vertically welded on an end face of the large balancing weight 603, the large balancing weight 603 is slidably installed in the first sliding hole 401, the small balancing weight 602 is slidably installed in the second sliding hole 402, the top block 601 extends from the inside of the second sliding hole 402 to the outside, and the maximum diameter length of the large balancing weight 603 is greater than the diameter length of the second sliding hole 402. The balancing weight can be in the same place with the sliding hole laminating under long-time centrifugal force, leads to being difficult to take off, and this application sets up a toper kicking block 601 on the balancing weight top, only needs to exert external force to kicking block 601 when dismantling and can drop.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims (4)

1. The utility model provides a modular compressor rotor balancing piece, includes balancing piece body (1), its characterized in that: the balance weight body (1) is arc-shaped, a mounting hole (2) is vertically formed in the end portion of the balance weight body (1), a first balance weight (3) is welded on the side wall of one side of the balance weight body (1), the shape of the first balance weight (3) is matched with the balance weight body (1), a plurality of balance weight holes are formed in the inner ring of the arc surface of the balance weight body (1), each balance weight hole comprises a large balance weight hole (4) and a small balance weight hole (5), only one large balance weight hole (4) is arranged, each large balance weight hole (4) comprises a first sliding hole (401) and a second sliding hole (402), each first sliding hole (401) is vertically formed in the inner ring arc surface of the balance weight body (1), each second sliding hole (402) is vertically formed in the outer ring arc surface of the balance weight body (1), and each first sliding hole (401) is communicated with each second sliding hole (402), the central axis of the first sliding hole (401) and the central axis of the second sliding hole (402) are in the same straight line, the diameter length of the second sliding hole (402) is smaller than that of the first sliding hole (401), a plurality of small weight holes (5) are arranged, the small weight holes (5) are uniformly distributed on two sides of the large weight hole (4), the small weight holes (5) are symmetrically arranged relative to the central line of the balance weight body (1), each small weight hole (5) comprises a third sliding hole (501) and a fourth sliding hole (502), the third sliding hole (501) is vertically formed from the inner ring arc surface of the balance weight body (1), the fourth sliding hole (502) is vertically formed from the outer ring arc surface of the balance weight body (1), the third sliding hole (501) is communicated with the fourth sliding hole (502), and the central axis of the third sliding hole (501) and the central axis of the fourth sliding hole (502) are in the same straight line, the diameter length of the fourth sliding hole (502) is smaller than that of the third sliding hole (501), and second balancing weights (6) are inserted into the large balancing weight holes (4).

2. A combined compressor rotor counterbalance according to claim 1, wherein the second counterbalance block (6) comprises a conical top block (601), a small counterbalance block (602) and a large counterbalance block (603), the top block (601) is welded on one end face of the small counterbalance block (602), the other end of the small counterbalance block (602) is vertically welded on the end face of the large counterbalance block (603), the large counterbalance block (603) is slidably mounted in the first sliding hole (401), the small counterbalance block (602) is slidably mounted in the second sliding hole (402), the top block (601) extends from the inside of the second sliding hole (402) to the outside, and the maximum diameter length of the large counterbalance block (603) is greater than the diameter length of the second sliding hole (402).

3. A combined compressor rotor counterbalance according to claim 1, wherein the small weight port (5) has a corresponding weight mounted therein.

4. A combined compressor rotor counterbalance according to claim 1, wherein a set of small weight ports (5) symmetrical about the centre line of the counterbalance body (1) are on the same circumference.

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