CN116026526A - Balance detection device and rotor assembly balance adjustment method - Google Patents

Abstract

The invention relates to the technical field of static balance detection, and discloses a balance detection device and a rotor assembly balance adjustment method. Wherein the conical sleeve is connected to the mandrel. The conical sleeve is penetrated into the connecting hole of the connecting sleeve from one side of the connecting sleeve and is connected with the baffle plate positioned at the other side of the connecting sleeve so as to connect the connecting sleeve with the mandrel. The mandrel support is connected to the support frame. Through this kind of structure setting, be connected dabber and rotor assembly through toper cover and baffle, and then carry out the detection of rotor assembly equilibrium. The conical sleeve comprises a plurality of sections with different diameters, and the balance detection device can be suitable for rotor assemblies with connecting sleeves with different sizes by adjusting the insertion depth of the conical sleeve in the connecting holes of the connecting sleeves. Therefore, the universality of the balance detection device is greatly improved.

Description

Balance detection device and rotor assembly balance adjustment method

technical field

The invention relates to the technical field of static balance detection, in particular to a balance detection device and a rotor assembly balance adjustment method.

Background technique

The sand making machine is used for the crushing of ore materials, and it is widely used in many fields such as metallurgy, building materials, roads, railways, water conservancy and chemical industries. The rotor is the core component of the sand making machine. During operation, it is necessary to strictly ensure the balance of the rotor. If the rotor is out of balance, it will lead to problems such as large vibration of the sand making machine, low sand making efficiency and shortened service life of the main shaft assembly. Therefore, it is often necessary to detect and adjust the balance of the rotor. In the rotor balance detection device, the rotor is usually connected to the mandrel through a connecting piece. In the prior art, different types of rotors need to be equipped with connectors of different sizes, which is poor in versatility.

Contents of the invention

The invention provides a balance detection device, which is used to solve or improve the problem of poor versatility of the existing balance detection device.

According to a first aspect of the present invention, a balance detection device is provided, including a support frame, a mandrel, a tapered sleeve and a baffle.

Wherein, the tapered sleeve is connected to the mandrel. The tapered sleeve is penetrated from one side of the connecting sleeve to the connecting hole of the connecting sleeve, the baffle plate is located on the other side of the connecting sleeve, and the tapered sleeve is connected with the baffle plate so that The connecting sleeve is connected with the mandrel. The mandrel support is connected to the support frame.

According to a balance detection device provided by the present invention, the tapered sleeve is arranged coaxially with the mandrel. The mandrel is arranged coaxially with the connecting hole of the connecting sleeve.

According to a balance detection device provided by the present invention, the support frame includes a first support body, a second support body and a connecting part.

Wherein, the first support body and the second support body are arranged in parallel and at intervals. One end of the connection part is connected to the first support body, and the other end of the connection part is connected to the second support body.

According to a balance detection device provided by the present invention, one end of the mandrel is connected with a first bearing, and the other end of the mandrel is connected with a second bearing. A first bearing seat is arranged on the first support body, and a second bearing seat is arranged on the second support body. The first bearing is installed into the first bearing housing. The second bearing is installed into the second bearing housing.

According to a balance detection device provided by the present invention, a shaft shoulder is provided on the mandrel, the tapered sleeve is sleeved on the mandrel, and one end of the tapered sleeve is stuck on the shaft shoulder, The other end of the tapered sleeve is locked and connected with the mandrel through a nut.

According to a balance detection device provided by the present invention, the conical sleeve is connected to the baffle plate through a connecting piece. The connectors include bolts. The bolt extends through the baffle plate into the connecting hole of the connecting sleeve and is connected with the tapered sleeve.

According to the second aspect of the present invention, there is provided a rotor assembly balance adjustment method based on the above-mentioned balance detection device, including:

Connect the rotor assembly to the mandrel and support the mandrel horizontally on the support frame;

Stir the rotor assembly to rotate and make it stop naturally to determine the most important position of the rotor assembly;

Observe the height position of each balance point in the rotor assembly to determine the weight distribution state of the rotor assembly;

According to the weight distribution state of the rotor assembly, add counterweights at the corresponding counterweight positions in the rotor assembly until the rotor assembly reaches a balanced state.

According to a rotor assembly balance adjustment method provided by the present invention, the step of connecting the rotor assembly to the mandrel and horizontally supporting the mandrel on the support frame includes:

The tapered sleeve is coaxially sleeved on the mandrel, and the tapered sleeve is fixedly connected to the mandrel through a nut;

Pass the mandrel from one side of the connecting hole of the connecting sleeve to the other side of the connecting hole of the connecting sleeve, and make the tapered sleeve fit and connect with the connecting hole of the connecting sleeve;

Set the baffle plate on the mandrel from the other side of the connection hole of the connecting sleeve, and fix the baffle plate with the tapered sleeve through bolts;

Place the support frame in the horizontal support plane, and install the first bearing and the second bearing on the mandrel;

Use lifting equipment to hoist the rotor assembly to the position where the first bearing fits into the first bearing seat, and adjust the position of the second bearing so that the second bearing fits into the second bearing seat.

According to a rotor assembly balance adjustment method provided by the present invention, the step of observing the height position of each counterpoint position in the rotor assembly to determine the weight distribution state of the rotor assembly includes:

The rotor assembly includes three counterpoints distributed uniformly in a circular array, and the three counterpoints of the rotor assembly are marked with counterpoint A, counterpoint B and counterpoint C in sequence;

According to the height positions of the distribution point A, the distribution point B and the distribution point C, determine the highest point, the second point and the lightest point among the three points A, B and C .

According to a rotor assembly balance adjustment method provided by the present invention, according to the weight distribution state of the rotor assembly, adding counterweights at the corresponding counterweight positions in the rotor assembly until the rotor assembly reaches a balanced state include:

Place the counterweight at the sub-emphasis position until the sub-emphasis position and the most eminent position are symmetrical to each other with the vertical axis as the axis of symmetry;

Turn the rotor assembly manually so that the lightest point rotates and maintains it at a certain angle;

Place the counterweight at the lightest point until the lightest point can still be maintained at the above angle when the rotor assembly is released;

Lock and connect each counterweight to the rotor assembly;

Manually rotate the rotor assembly several times to any angle and then release the rotor assembly, and observe whether the rotor assembly can remain stationary after releasing the rotor assembly each time.

In the balance detection device provided by the present invention, the parts used to connect the mandrel and the connecting sleeve are tapered sleeves and baffles. Specifically, a tapered sleeve is connected to the mandrel. The mandrel is penetrated from one side of the connecting hole of the connecting sleeve to the other side thereof, so that one end of the tapered sleeve penetrates into the connecting hole of the connecting sleeve, and the other end of the tapered sleeve is clamped outside the connecting hole of the connecting sleeve. The baffle is sleeved on the mandrel and locked on the other side of the connecting hole of the connecting sleeve. The baffle is connected with the tapered sleeve so that the rotor assembly is fixedly connected with the core shaft.

For example, the connecting hole of the connecting sleeve is a cylindrical hole or a tapered hole. When the connecting hole of the connecting sleeve is a cylindrical hole, the outer edge of the connecting hole of the connecting sleeve fits and snaps on the outer wall of the tapered sleeve. When the connecting hole of the connecting sleeve is a tapered hole, the inner sidewall in at least part of the section of the connecting hole of the connecting sleeve is attached to the outer sidewall of the tapered sleeve. Since the tapered sleeve includes multiple sections with different diameters, by adjusting the insertion depth of the tapered sleeve in the connecting hole of the connecting sleeve, the balance detection device can be adapted to rotor assemblies with connecting sleeves of different sizes.

Through this structural arrangement, the mandrel is connected to the rotor assembly through the tapered sleeve and the baffle, and then the balance of the rotor assembly is detected. Since the tapered sleeve includes multiple sections with different diameters, by adjusting the insertion depth of the tapered sleeve in the connecting hole of the connecting sleeve, the balance detection device can be adapted to rotor assemblies with connecting sleeves of different sizes. Thus, the versatility of the balance detection device is greatly improved.

Description of drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are For some embodiments of the present invention, those skilled in the art can also obtain other drawings based on these drawings without creative work.

Fig. 1 is a schematic diagram of an exploded structure of a balance detection device according to an embodiment of the present invention;

Fig. 2 is a schematic diagram of the combined structure of the rotor assembly and the balance detection device in the rotor assembly balance adjustment method according to an embodiment of the present invention;

Fig. 3 is a second schematic diagram of the combined structure of the rotor assembly and the balance detection device in the rotor assembly balance adjustment method according to an embodiment of the present invention;

Fig. 4 is a schematic diagram of the combined structure of the rotor assembly and the balance detection device in the method for adjusting the balance of the rotor assembly according to an embodiment of the present invention;

Reference signs:

100. Support frame; 101. First support body; 102. Second support body; 103. Connecting part; 104. First bearing seat; 105. Second bearing seat; 200. Mandrel; 201. First bearing; 202 , the second bearing; 300, the tapered sleeve; 400, the baffle; 500, the connector; 501, the nut; 600, the rotor assembly; 601, the connecting sleeve.

Detailed ways

Embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but should not be used to limit the scope of the present invention.

In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right" , "vertical", "horizontal", "top", "bottom", "inner", "outer" and other indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing this The embodiments and simplified descriptions of the invention do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be construed as limiting the embodiments of the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and should not be understood as indicating or implying relative importance.

In the description of the embodiments of the present invention, it should be noted that unless otherwise specified and limited, the terms "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection, Or integrated connection; it can be mechanical connection or electrical connection; it can be direct connection or indirect connection through an intermediary. Those of ordinary skill in the art can understand the specific meanings of the above terms in the embodiments of the present invention in specific situations.

In the embodiments of the present invention, unless otherwise specified and limited, the first feature may be in direct contact with the first feature or the first feature and the second feature may pass through the middle of the second feature. Media indirect contact. Moreover, "above", "above" and "above" the first feature on the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. "Below", "beneath" and "beneath" the first feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is less horizontally than the second feature.

In the description of this specification, descriptions referring to the terms "one embodiment", "some embodiments", "example", "specific examples", or "some examples" mean that specific features described in connection with the embodiment or example , structure, material or feature is included in at least one embodiment or example of the embodiments of the present invention. In this specification, the schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the described specific features, structures, materials or characteristics may be combined in any suitable manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine the different embodiments or examples and the features of different embodiments or examples described in this specification to make the purposes and technical solutions of the embodiments of the present invention and advantages are clearer. The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of them. the embodiment. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

A balance detection device and a rotor assembly balance adjustment method provided by embodiments of the present invention will be described below with reference to FIGS. 1 to 4 . It should be understood that the following description is only an exemplary embodiment of the present invention, and does not constitute any special limitation to the present invention.

The embodiment of the first aspect of the present invention provides a balance detection device. As shown in FIG. 1 , the balance detection device includes a support frame 100 , a mandrel 200 , a tapered sleeve 300 and a baffle 400 .

Therein, the tapered sleeve 300 is connected to the mandrel 200 . The tapered sleeve 300 is penetrated from one side of the connecting sleeve 601 to the connection hole of the connecting sleeve 601, the baffle plate (400) is located on the other side of the connecting sleeve 601, and the tapered sleeve 300 is connected with the baffle plate 400 , so that the connecting sleeve 601 is connected to the mandrel 200 . The mandrel 200 is supportively connected to the support frame 100 .

In the balance detection device provided by the present invention, the components used to connect the mandrel 200 and the connecting sleeve 601 are the tapered sleeve 300 and the baffle plate 400 . Specifically, a tapered sleeve 300 is connected to the mandrel 200 . The mandrel 200 is pierced from one side of the connecting hole of the connecting sleeve 601 to the other side thereof, so that one end of the tapered sleeve 300 is penetrated into the connecting hole of the connecting sleeve 601, and the other end of the tapered sleeve 300 is stuck in the connecting sleeve 601 outside the connecting hole. The baffle 400 is sheathed on the mandrel 200 and locked on the other side of the connecting hole of the connecting sleeve 601 . The baffle 400 is connected with the tapered sleeve 300 so that the rotor assembly 600 is fixedly connected with the core shaft 200 .

For example, the connecting hole of the connecting sleeve 601 is a cylindrical hole or a tapered hole. When the connecting hole of the connecting sleeve 601 is a cylindrical hole, the outer edge of the connecting hole of the connecting sleeve 601 fits and snaps on the outer wall of the tapered sleeve 300 . When the connecting hole of the connecting sleeve 601 is a tapered hole, the inner wall of at least a part of the connecting hole of the connecting sleeve 601 is attached to the outer wall of the tapered sleeve 300 . Since the tapered sleeve 300 includes multiple sections with different diameters, by adjusting the insertion depth of the tapered sleeve 300 in the connecting hole of the connecting sleeve 601, the balance detection device can be applied to rotor assemblies with different sizes of connecting sleeves 601. Into 600.

Through this structural arrangement, the mandrel 200 is connected to the rotor assembly 600 through the tapered sleeve 300 and the baffle 400 , and then the balance of the rotor assembly 600 is detected. Since the tapered sleeve 300 includes multiple sections with different diameters, by adjusting the insertion depth of the tapered sleeve 300 in the connecting hole of the connecting sleeve 601, the balance detection device can be applied to rotor assemblies with different sizes of connecting sleeves 601. Into 600. Thus, the versatility of the balance detection device is greatly improved.

In one embodiment of the present invention, the tapered sleeve 300 is arranged coaxially with the mandrel 200 . The mandrel 200 is arranged coaxially with the connecting hole of the rotating shaft assembly connecting sleeve 601 .

In use, the tapered sleeve 300 is coaxially sleeved and connected to the mandrel 200 . When the tapered sleeve 300 is inserted into the connecting hole of the connecting sleeve 601 , the central axis of the connecting hole of the connecting sleeve 601 coincides with the central axis of the tapered sleeve 300 . The support frame 100 is supported into a horizontal plane. When the mandrel 200 is connected to the support frame 100, the central axis of the mandrel 200 is a horizontal central axis.

In one embodiment of the present invention, the supporting frame 100 includes a first supporting body 101 , a second supporting body 102 and a connecting portion 103 .

Wherein, the first support body 101 and the second support body 102 are arranged in parallel and at intervals. One end of the connection part 103 is connected to the first support body 101 , and the other end of the connection part 103 is connected to the second support body 102 .

Further, in one embodiment of the present invention, one end of the mandrel 200 is connected with a first bearing 201 , and the other end of the mandrel 200 is connected with a second bearing 202 . A first bearing seat 104 is disposed on the first supporting body 101 . A second bearing seat 105 is disposed on the second supporting body 102 . The first bearing 201 is installed in the first bearing housing 104 . The second bearing 202 is installed in the second bearing housing 105 .

In one embodiment of the invention, the mandrel 200 is provided with a shoulder. The tapered sleeve 300 is sleeved on the mandrel 200 , and one end of the tapered sleeve 300 is locked on the shaft shoulder. The other end of the tapered sleeve 300 is lockingly connected with the mandrel 200 through a nut 501 .

Furthermore, in an embodiment of the present invention, the conical sleeve 300 and the baffle plate 400 are connected through a connecting piece 500 . The connector 500 includes bolts. The bolt extends through the baffle plate 400 into the connection hole of the connection sleeve 601 and connects with the tapered sleeve 300 .

For example, as shown in FIG. 1 , in this embodiment, the mandrel 200 is provided with a shoulder for clamping the tapered sleeve 300 . The tapered sleeve 300 is sheathed on the mandrel 200 , and one end thereof is locked on the shoulder of the mandrel 200 . The mandrel 200 is provided with an external thread, and the other end of the tapered sleeve 300 is locked and connected to the mandrel 200 through a nut 501 . The baffle 400 is sheathed on the mandrel 200 , and the baffle 400 is locked on the side of the connecting sleeve 601 away from the tapered sleeve 300 . The bolt extends through the baffle plate 400 into the connection hole of the connection sleeve 601 and is fixedly connected with the tapered sleeve 300 .

As shown in FIG. 1 , both the first support body 101 and the second support body 102 are triangular support plates. The triangular support plate can improve the support stability of the support frame 100 . The connection part 103 is a connection plate. The first support body 101 and the second support body 102 are spaced apart and arranged in parallel. The connection part 103 is connected between the first support body 101 and the second support body 102 by bolts. A first bearing 201 is provided at one end of the mandrel 200 , and a second bearing 202 is provided at the other end of the mandrel 200 . Correspondingly, a first bearing seat 104 is provided on the first support body 101 , and a second bearing seat 105 is provided on the second support body 102 . The first bearing seat 104 is adapted to the first bearing 201 , and the second bearing seat 105 is adapted to the second bearing 202 . During the balance testing process, the first bearing 201 and the second bearing 202 on the mandrel 200 are installed into the first bearing seat 104 and the second bearing seat 105 respectively, so as to support the mandrel 200 to a horizontal position.

In order to reduce the overall weight of the supporting frame 100 , weight-reducing holes may be provided on the first supporting body 101 , the second supporting body 102 and the connecting portion 103 . In addition, in order to increase the supporting strength of the supporting frame 100 , a plurality of reinforcing ribs may be provided on the first supporting body 101 and the second supporting body 102 .

The embodiment of the second aspect of the present invention provides a rotor assembly balance adjustment method based on the above-mentioned balance detection device, including:

connecting the rotor assembly 600 to the mandrel 200, and supporting the mandrel 200 horizontally on the support frame 100;

Stir the rotor assembly 600 to rotate, and make it stop naturally, so as to determine the most important position of the rotor assembly 600;

Observing the height position of each balance point in the rotor assembly 600 to determine the weight distribution state of the rotor assembly 600;

According to the weight distribution state of the rotor assembly 600 , add counterweights at corresponding counterweight positions in the rotor assembly 600 until the rotor assembly 600 reaches a balanced state.

In one embodiment of the present invention, the steps of connecting the rotor assembly 600 to the mandrel 200 and horizontally supporting the mandrel 200 on the supporting frame 100 include:

The tapered sleeve 300 is coaxially sleeved on the mandrel 200, and the tapered sleeve 300 is fixedly connected to the mandrel 200 through a nut 501;

Pass the mandrel 200 from one side of the connecting hole of the connecting sleeve 601 to the other side of the connecting hole of the connecting sleeve 601, and make the tapered sleeve 300 fit and connect with the connecting hole of the connecting sleeve 601;

Sleeve the baffle 400 onto the mandrel 200 from the other side of the connecting hole of the connecting sleeve 601, and fix the baffle 400 to the tapered sleeve 300 through bolts;

Place the support frame 100 in a horizontal support plane, and install the first bearing 201 and the second bearing 202 on the mandrel 200;

Use lifting equipment to lift the rotor assembly 600 to the position where the first bearing 201 is fitted into the first bearing seat 104, and adjust the position of the second bearing 202 so that the second bearing 202 is fitted to the second bearing seat 105 Inside.

Specifically, in the process of installing the rotor assembly 600 to the balance detection device, firstly, the tapered sleeve 300 is fixed on the mandrel 200 . Specifically, the tapered sleeve 300 is coaxially sleeved on the mandrel 200, so that one end of the tapered sleeve 300 is clamped on the shoulder of the mandrel 200, and the other end of the tapered sleeve 300 is connected to the mandrel 200 through the nut 501. Lock connection. The mandrel 200 is passed through from one side of the connecting sleeve 601 to the other side of the connecting sleeve 601 , so that the tapered sleeve 300 is mated with the connecting hole of the connecting sleeve 601 . Wherein, the mandrel 200 is arranged coaxially with the connecting hole of the connecting sleeve 601 . The baffle plate 400 is sleeved on the mandrel 200 , and locked on the side of the connecting sleeve 601 away from the tapered sleeve 300 . The bolt extends through the baffle plate 400 into the connection hole of the connection sleeve 601 and connects with the tapered sleeve 300 . A first bearing 201 and a second bearing 202 are respectively installed at both ends of the mandrel 200 . Support the support frame 100 on a horizontal surface. The components such as the rotor assembly 600 and the mandrel 200 are hoisted onto the support frame 100 as a whole, so that the first bearing 201 is installed in the first bearing housing 104 . Adjust the position of the second bearing 202 so that the second bearing 202 corresponds to the second bearing seat 105 , and install the second bearing 202 into the second bearing seat 105 . As a result, the supporting frame 100 supports the rotor assembly 600 and the mandrel 200 as a whole to a horizontal position.

Further, in one embodiment of the present invention, the step of observing the height position of each balance position in the rotor assembly 600 to determine the weight distribution state of the rotor assembly 600 includes:

The rotor assembly 600 includes three counterpoint positions distributed uniformly in an annular array, and the three counterpoint positions of the rotor assembly 600 are marked with counterpoint A, counterpoint B and counterpoint C in sequence;

According to the height positions of the distribution point A, the distribution point B and the distribution point C, determine the highest point, the second point and the lightest point among the three points A, B and C .

In yet another embodiment of the present invention, according to the weight distribution state of the rotor assembly 600, adding counterweights at the corresponding counterweight positions in the rotor assembly 600 until the rotor assembly 600 reaches a balanced state includes:

Place the counterweight at the sub-emphasis position until the sub-emphasis position and the most eminent position are symmetrical to each other with the vertical axis as the axis of symmetry;

Manually rotate the rotor assembly 600 so that the lightest point rotates and maintains it at a certain angle;

Place counterweights at the lightest point until the lightest point can still be maintained at the above angle when the rotor assembly 600 is released;

Locking and connecting each counterweight to the rotor assembly 600;

Manually rotate the rotor assembly 600 to any angle for several times and then release the rotor assembly 600, and observe whether the rotor assembly 600 can maintain a static state after releasing the rotor assembly 600 each time.

For example, as shown in FIG. 2 to FIG. 4 , three counterpoint positions are set in the rotor assembly 600 . The balance point is a point for installing a balance weight to adjust the balance of the rotor assembly 600 . Each counterpoint position is an annular array with the center point of the rotor assembly 600 as the center of the array. The three alignment points are marked as alignment point A, alignment point B, and alignment point C. According to the height position of each counter point position, the general situation of the weight distribution of the rotor assembly 600 can be judged. For example, the weight distribution is greater at the lowest point of the counterpoint, and less weight distribution is at the highest point of the counterpoint.

This method is suitable for checking and adjusting the balance of the new rotor assembly 600 or the old rotor assembly 600 . For example, when testing the new rotor assembly 600, the new rotor assembly 600 may already be equipped with a counterweight, and the rotor assembly 600 with the counterweight can be directly installed on the balance testing device for balance testing, When the rotor assembly 600 is unbalanced, an additional counterweight can be added on the basis of the existing counterweight. Alternatively, after the original counterweight is completely removed, a counterweight can be added to the rotor assembly 600 to ensure the balance of the rotor assembly 600 .

For another example, when the rotor assembly 600 is inspected, impurities such as stone dust in the rotor assembly 600 should be removed at first, and damaged parts on the rotor assembly 600 should be checked and repaired. Then the original counterweight on the old rotor assembly 600 is removed. Then install the old rotor assembly 600 after the balance weight is removed on the balance detection device for balance detection and adjustment.

During the specific operation process, A, B and C are marked in sequence at each balance point of the rotor assembly 600 . After installing the rotor assembly 600 on the balance detection device, manually rotate the rotor assembly 600 and make it stop naturally. As shown in FIG. 2 , at this moment, the weight distribution point C of the rotor assembly 600 is at the lowest point among the three weight distribution points. The balance position B with the smallest weight distribution in the rotor assembly 600 is at the highest point among the three balance positions. The distribution point A is located between the distribution point B and the distribution point C. Correspondingly, the weight distribution value at the distribution point A is between the weight distribution value of the distribution point B and the weight distribution value of the distribution point C.

Then, add a counterweight at the balance point A until the balance point C rotates to the highest point in the vertical direction. As shown in FIG. 3 , at this time, the balance point A and the balance point C are symmetrical to each other with the vertical line as the axis of symmetry.

Afterwards, as shown in FIG. 4 , the rotor assembly 600 is manually rotated, and the counterpoint position B is rotated by 90° and kept at this position. A counterweight is added at the balance point B until the balance point B can remain stationary at the current position after the rotor assembly 600 is released.

At this point, it can be preliminarily determined that the rotor assembly 600 is roughly in a balanced state. The balance weight and the rotor assembly 600 are connected by bolts. When the counterweight is placed at each counterweight position, the bolts are all in a loose state, so that the counterweight can be added or removed at any time. When it is preliminarily determined that the rotor assembly 600 is in a balanced state, tighten the bolts so that each counterweight is locked and connected to the rotor assembly 600 .

Finally, rotate the rotor assembly 600 by 90° four times, and observe whether the rotor assembly 600 is in a static state after each rotation by 90°. If the rotor assembly 600 can be in a static state each time, it indicates that the rotor assembly 600 is already in a balanced state.

What needs to be explained here is that every time the counterweight is added, the rotor assembly 600 should be manually moved to make it rotate, and it will naturally rest in a new equilibrium state before the next step of counterweight adjustment. Thus, the frictional force of the first bearing 201 and the second bearing 202 against the spindle 200 can be reduced. For example, the distribution point A is on the right side of the highest point in the vertical direction, and the distribution point B is on the left side of the highest point in the vertical direction. When a counterweight is added at the counterweight position A, the rotor assembly 600 can be driven to rotate clockwise. In the specific counterweight process, first add a counterweight at the counterweight point A, then move the rotor assembly 600 to rotate and return to the new balance point naturally, and observe whether the counterpoint B is in the vertical direction the highest point. When the balance point B is still on the left side of the highest point in the vertical direction, continue to increase the balance weight at the balance point A, and stir the rotor assembly 600 to make it rotate and return to the new balance point naturally. To re-judge whether it is necessary to increase or decrease the counterweight at the counterweight position A. When the counterweight position B is on the right side of the highest point in the vertical direction, it is necessary to reduce the weight of the counterweight at the counterweight position A. After reducing the weight of the counterweight, move the rotor assembly 600 to make it rotate and recover naturally To the new balance point, to re-judge whether it is necessary to increase or decrease the counterweight at the counterpoint A. When the balance point B is at the highest point in the vertical direction, stop increasing or decreasing the counterweight at the balance point A.

Usually, the finished counterweights equipped with the rotor assembly 600 are counterweights with relatively small weight. If these counterweights cannot meet the counterweight requirements, other counterweights with relatively larger sizes and weights can be welded at each counterpoint position.

In order to ensure the accuracy of the balance test results of the rotor assembly 600, after judging that the rotor assembly 600 has reached a balanced state, each counterweight on the rotor assembly 600 can be disassembled, and the rotor assembly 600 without counterweights can be observed. Is it in balance. If the rotor assembly 600 is in an unbalanced state after the balance weight is removed, the reliability of the detection result is relatively high. If the rotor assembly 600 is still in a balanced state after the balance weight is removed, there may be a problem with the balance detection device, and there may be a problem with the balance detection result of the rotor assembly 600 .

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: it can still be Modifications are made to the technical solutions described in the foregoing embodiments, or equivalent replacements are made to some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims (10)

1. A balance detection device is characterized by comprising a support frame, a mandrel, a conical sleeve and a baffle plate,

the cone sleeve is connected to the mandrel, one side of the cone sleeve penetrates through the connecting hole of the connecting sleeve, the baffle is located on the other side of the connecting sleeve, the cone sleeve is connected with the baffle, the connecting sleeve is connected with the mandrel, and the mandrel is connected to the supporting frame in a supporting mode.

2. The balance detection device according to claim 1, wherein the taper sleeve is disposed coaxially with the mandrel, and the mandrel is disposed coaxially with the connection hole of the connection sleeve.

3. The balance detecting device according to claim 1 or 2, wherein the supporting frame comprises a first supporting body, a second supporting body and a connecting portion,

the first supporting bodies are parallel to the second supporting bodies at intervals, one end of the connecting portion is connected with the first supporting bodies, and the other end of the connecting portion is connected with the second supporting bodies.

4. The balance detection device according to claim 3, wherein one end of the mandrel is connected with a first bearing, the other end of the mandrel is connected with a second bearing, a first bearing seat is provided on the first support body, a second bearing seat is provided on the second support body, the first bearing is mounted in the first bearing seat, and the second bearing is mounted in the second bearing seat.

5. The balance detection device according to claim 1, wherein a shaft shoulder is arranged on the mandrel, the conical sleeve is sleeved on the mandrel, one end of the conical sleeve is clamped on the shaft shoulder, and the other end of the conical sleeve is in locking connection with the mandrel through a nut.

6. The balance detection device of claim 1, wherein the conical sleeve is connected to the baffle by a connector comprising a bolt extending through the baffle into the connecting bore of the connecting sleeve and connected to the conical sleeve.

7. A rotor assembly balance adjustment method based on the balance detection device according to any one of claims 1 to 6, comprising:

connecting the rotor assembly to the mandrel and horizontally supporting the mandrel to the support frame;

the rotor assembly is stirred to rotate and naturally stopped, so that the heaviest point of the rotor assembly is determined;

observing the height position of each counterweight point in the rotor assembly to determine the weight distribution state of the rotor assembly;

and adding balancing weights at corresponding balancing weight points in the rotor assembly according to the weight distribution state of the rotor assembly until the rotor assembly reaches a balanced state.

8. The method of claim 7, wherein the step of connecting the rotor assembly to the spindle and horizontally supporting the spindle to the support frame comprises:

coaxially sleeved on the mandrel by the conical sleeve, and fixedly connected with the mandrel by the nut;

the mandrel is penetrated from one side of the connecting sleeve connecting hole to the other side of the connecting sleeve connecting hole, and the conical sleeve is matched and connected with the connecting sleeve connecting hole;

sleeving the baffle plate on the mandrel from the other side of the connecting sleeve connecting hole, and fixedly connecting the baffle plate with the conical sleeve through bolts;

placing the support frame in a horizontal support surface, and mounting a first bearing and a second bearing on the mandrel;

the rotor assembly is hoisted to a position where the first bearing is matched and installed in the first bearing seat by using the hoisting equipment, and the position of the second bearing is adjusted so that the second bearing is matched and installed in the second bearing seat.

9. The method of claim 7, wherein the step of observing the height position of each weight point in the rotor assembly to determine the weight distribution status of the rotor assembly comprises:

the rotor assembly comprises three weight points distributed in an annular uniform array, and weight point positions A, weight point positions B and weight point positions C of the rotor assembly are marked in sequence at the three weight point positions;

and determining the heaviest point, the minor point and the lightest point of the weight point A, the weight point B and the weight point C according to the height positions of the weight point A, the weight point B and the weight point C.

10. The method of claim 9, wherein the step of adding weights at corresponding weight points in the rotor assembly until the rotor assembly reaches a balanced state according to the weight distribution state of the rotor assembly comprises:

placing a balancing weight at the secondary important position until the secondary important position and the heaviest point are symmetrical with each other by taking the vertical axis as a symmetry axis;

manually rotating the rotor assembly to rotate and maintain the lightest point at a certain angle;

placing a balancing weight at the lightest point until the lightest point can still be kept at the angle when the rotor assembly is released;

each balancing weight is in locking connection with the rotor assembly;

and manually rotating the rotor assembly for a plurality of times to any angle, then releasing the rotor assembly, and observing whether the rotor assembly can keep a static state after each time of releasing the rotor assembly.

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