Impeller dynamic balance detection device

Abstract

The utility model relates to a dynamic balance detection device for an impeller. The dynamic balance detection device comprises a controller, a rear frame, a rack and a front frame, the rack is located between the front frame and the rear frame. A supporting wheel b and a supporting wheel a are respectively arranged on the front frame and the rear frame; the impeller shaft is placed on the supporting wheel a and the supporting wheel b; the impeller is suspended at the front end of the front frame; a roller d, a roller c, a roller b and a roller a are sequentially arranged on the rack from left to right, and a belt is arranged between the impeller shaft and the rack; the impeller dynamic balance detection device has the advantages of being low in use cost, long in service life, simple in structure and convenient to operate.

Description

Technical Field

[0001] The utility model relates to an impeller dynamic balance detection device. Background Art

[0002] Fans are commonly used equipment in industry today. The impeller, the main component of a fan, needs to undergo a dynamic balance test after it is assembled on the impeller shaft due to its structure and function. This test can tell where the impeller has defects and needs to be repaired in order to achieve the dynamic balance requirements so that it can play a corresponding role during use. There are many existing dynamic balance detection devices, including fully automatic and high-precision detectors, which are expensive and will increase costs for small and medium-sized enterprises. In addition, they are too precise and many electronic components are easily damaged during use. Some non-fully automatic detection devices are too simple and cannot guarantee the accuracy of the detection. Utility Model Content

[0003] The utility model mainly solves the technical problems existing in the prior art, thereby providing an impeller dynamic balance detection device with low use cost, long service life, simple structure and easy operation.

[0004] The above technical problems of the present invention are mainly solved by the following technical solutions:

[0005] The utility model discloses an impeller dynamic balance detection device, comprising a controller and a rear frame, a machine frame and a front frame which are sequentially distributed; the machine frame is located between the front frame and the rear frame; a support wheel b and a support wheel a are respectively provided on the front frame and the rear frame; the impeller shaft is placed on the support wheel a and the support wheel b; the impeller is suspended at the front end of the front frame; rollers d, rollers c, rollers b and rollers a are sequentially provided on the frame from left to right, and a belt is provided between the impeller shaft and the machine frame.

[0006] Preferably, a motor is provided on the frame, and the roller a is connected to the motor.

[0007] Preferably, a sensing shaft is provided on the outside of the controller, and one end of the impeller shaft is connected to the sensing shaft.

[0008] Preferably, a height-adjustable pressure rod is provided at the top of the rear frame, and symmetrical rollers are provided at the end of the pressure rod.

[0009] Preferably, the support wheel a and the support wheel b are both symmetrically arranged structures.

[0010] Preferably, a through hole is provided in the middle of the pressure rod.

[0011] The beneficial effects of the utility model are:

[0012] The impeller shaft is placed by arranging symmetrical support wheels on the front and rear frames respectively. In this way, the impeller shaft is placed between the two support wheels. During detection, there is a limit when it rotates and it can rotate more smoothly. The design of the belt and four rollers allows a motor to drive the belt to rotate and thus drive the impeller shaft to rotate. The overall structure is simple and not prone to damage. Only the belt needs to be maintained, and the maintenance cost is low. At the same time, the device is easy to operate and can achieve the detection effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0014] Figure 1 、 2 3 is a schematic diagram of the structure of the utility model;

[0015] Figure 4 for Figure 3 A partial enlarged view of .

[0016] In the figure: 1-base frame, 2-controller, 3-sensing shaft, 4-rear frame, 5-support wheel a, 6-pressure rod, 7-impeller shaft, 8-impeller, 9-belt, 10-support wheel b, 11-front frame, 12-roller a, 13-roller b, 14-roller c, 15-roller d, 16-motor, 17-frame, 18-roller, through hole -6.1 DETAILED DESCRIPTION

[0017] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more precise definition of the protection scope of the present invention.

[0018] like Figure 1-4As shown, an impeller dynamic balance detection device is mainly used to detect the dynamic balance of the impeller after it is installed on the shaft. It includes a controller 2 and a rear frame 4, a frame 17 and a front frame 11 distributed in sequence; the frame 17 is located between the front frame 11 and the rear frame 4; a support wheel b10 and a support wheel a5 are respectively provided on the front frame 11 and the rear frame 4; the impeller shaft 7 is placed on the support wheel a5 and the support wheel b10; the impeller 8 is suspended at the front end position of the front frame 11; the frame 17 is provided with rollers d15, roller c14, roller b13 and roller a12 from left to right, and a belt 9 is provided between the impeller shaft 7 and the frame 17. Specifically, the belt 9 is sleeved on the impeller shaft 7 and wound around the rollers a12, roller d15, roller c14 and roller b13; further, the belt 9 is wound from the outside of the rollers a12 and d15, while the rollers c14 and b13 are wound from the inside (see Figure 1 ).

[0019] A shaft (not marked) is provided between the roller a12, roller d15, roller c14 and roller b13 and the frame 17, and a bearing (not shown) is provided on the shaft; the support wheel a5 and support wheel b10 and the front and rear frames also adopt a shaft and bearing structure design.

[0020] A motor 16 is provided on the frame 17, and the roller a12 is connected to the motor 16. When the motor 16 is started, the roller a12 starts to rotate, generating a driving force on the belt 9. Then, the roller b13, the roller c14 and the roller d15 also start to rotate under the action of the belt 9. The rotation of the four rollers will also promote the belt 9 to move more smoothly. In this way, the belt 9 is sleeved on the impeller shaft 7, which will drive the impeller shaft 7 to start rotating.

[0021] The controller 2 is provided with a sensing shaft 3, and one end of the impeller shaft 7 is connected to the sensing shaft 3; specifically, after the impeller shaft 7 rotates, the data is transmitted to the controller 2 through the sensing shaft 3 for analysis, thereby obtaining a balance result, and a local repair is performed to achieve the best dynamic balance; it should be noted that the controller uses a sensor to detect the dynamic balance of the shaft, which is an existing technology. The applicant mainly improved the device part for placing and fixing the impeller and impeller shaft at the front end. Therefore, the detailed technical solution of how the controller performs dynamic balance is the same as the existing technology, and the applicant will not describe it in detail here.

[0022] A height-adjustable pressure rod 6 is provided at the top of the rear frame 4, and a symmetrical roller 18 is provided at the end of the pressure rod 6; specifically, after the impeller shaft 7 is placed, the pressure rod 6 is adjusted to a high height so that the roller 18 is located on the upper surface of the impeller shaft 7, and a shaft and a bearing (not shown) are provided between the roller 18 and the pressure rod 6, so that when the impeller shaft 7 rolls, the pressure rod 6 can exert an upward pressure to prevent the impeller shaft 7 from deflecting, and at the same time can play an auxiliary detection role in the balance of the impeller shaft 7.

[0023] The support wheels a5 and b10 are both symmetrically arranged structures; further, there are two support wheels a5, which are symmetrically arranged on the rear frame 4, and the impeller shaft 7 is placed exactly in the middle of the two support wheels a5; there are also two support wheels b10, which are symmetrically arranged, and the impeller shaft 7 is also placed in the middle of the two support wheels b10.

[0024] The middle position of the pressure rod 6 is provided with a through hole 6.1, which is used to fix the pressure rod 6 to the top of the rear frame 4 by passing a bolt through the through hole 6.1 when adjusting the height (see Figure 1 、 Figure 4 ).

[0025] The beneficial effects of the utility model are:

[0026] The impeller shaft is placed by arranging symmetrical support wheels on the front and rear frames respectively. In this way, the impeller shaft is placed between the two support wheels. During detection, there is a limit when it rotates and it can rotate more smoothly. The design of the belt and four rollers allows a motor to drive the belt to rotate and thus drive the impeller shaft to rotate. The overall structure is simple and not prone to damage. Only the belt needs to be maintained, and the maintenance cost is low. At the same time, the device is easy to operate and can achieve the detection effect.

[0027] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," "the other end," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0028] In the description of the present invention, it should be noted that, unless otherwise specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, an indirect connection through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0029] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. An impeller dynamic balance detection device, characterized in that: The invention comprises a controller (2) and a rear frame (4), a frame (17) and a front frame (11) which are sequentially arranged; the frame (17) is located between the front frame (11) and the rear frame (4); a support wheel b (10) and a support wheel a (5) are respectively arranged on the front frame (11) and the rear frame (4); the impeller shaft (7) is placed on the support wheel a (5) and the support wheel b (10); the impeller (8) is suspended at the front end of the front frame (11); the frame (17) is sequentially provided with a roller d (15), a roller c (14), a roller b (13) and a roller a (12) from left to right; and a belt (9) is provided between the impeller shaft (7) and the frame (17).

2. The impeller dynamic balance detection device according to claim 1, characterized in that: A motor (16) is provided on the frame (17), and the roller a (12) is connected to the motor (16).

3. The impeller dynamic balance detection device according to claim 2, characterized in that: A sensing shaft (3) is externally provided on the controller (2), and one end of the impeller shaft (7) is connected to the sensing shaft (3).

4. The impeller dynamic balance detection device according to claim 2, characterized in that: A height-adjustable pressure rod (6) is provided at the top end of the rear frame (4), and symmetrical rollers (18) are provided at the end of the pressure rod (6).

5. The impeller dynamic balance detection device according to claim 2, characterized in that: The support wheel a (5) and the support wheel b (10) are both symmetrically arranged structures.

6. The impeller dynamic balance detection device according to claim 4, characterized in that: A through hole (6.1) is provided in the middle of the pressure rod (6).

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