Rapid counterweight adjusting device for dynamic balance of rotary machinery

Abstract

The utility model discloses a rotating machinery dynamic balance quick counterweight adjusting device in the field of dynamic balance counterweight adjustment, which comprises a rotating block, a moving mechanism and an adjusting mechanism, the moving mechanism is connected to the top of the rotating block, the adjusting mechanism is connected to the top of the moving mechanism, the top of the moving mechanism is connected with a mounting block, and the mounting block is connected with the rotating block. According to the rotating machine dynamic balance rapid counterweight adjusting device, when the counterweight block is added, the counterweight block is placed in the placing groove, the counterweight block extrudes the inclined face of the top of the clamping block, the clamping block is contracted, the connecting plate extrudes the reset spring, and when the clamping block is aligned with the clamping groove, the clamping block is clamped in the placing groove. And through resetting of the reset spring, the clamping block is embedded in the clamping groove to fix the balancing weight, so that the balancing weight is mounted more quickly, mounting in a bonding or welding mode is avoided, and the adjusting efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of dynamic balancing counterweight adjustment, in particular to a fast counterweight adjustment device for dynamic balancing of rotating machinery. Background Art

[0002] When the center of gravity of a rotating machinery's rotor misaligns with its center of rotation, unbalanced forces are generated during rotation, causing the rotor to vibrate. At high speeds, even a small amount of mass eccentricity can generate significant centrifugal forces, causing significant vibration. Unbalance is a common cause of failure in rotating machinery, accounting for over 75% of all failures. Rotor unbalance can be caused by a variety of factors, including asymmetric rotor structure, raw material defects, manufacturing and installation errors, and thermal deformation. Dynamic balancing is an essential component of rotating machinery troubleshooting, carried out throughout the entire manufacturing, installation, and operation phases.

[0003] The current dynamic balancing test is carried out by adding or removing weight from appropriate parts of the rotor. When adding counterweights, they are usually bonded or directly welded, which makes the addition of counterweights more time-consuming and reduces installation efficiency. For this reason, we have proposed a rapid counterweight adjustment device for dynamic balancing of rotating machinery. Utility Model Content

[0004] The purpose of the present utility model is to provide a rapid counterweight adjustment device for the dynamic balance of rotating machinery, so as to solve the problem raised in the above background technology that in the current dynamic balancing test, when adding counterweight blocks, bonding or direct welding of counterweight blocks is usually adopted, which makes the addition of counterweight blocks more time-consuming and reduces the installation efficiency.

[0005] The control mechanism that the present invention relates to is that the eccentricity of the said balancing mechanism is adjusted, and the adjusting mechanism is connected with the adjusting mechanism on the top of the said balancing mechanism, and the adjusting mechanism comprises a mounting block, a placement slot, a contraction cavity, a connecting plate, a connecting rod, a pull plate, a return spring, a clamping block, a counterweight block and a clamping slot. The top of the said balancing mechanism is connected with the mounting block, the top middle part of the said mounting block is provided with a placement slot, the middle part of the front and rear sides of the said placement slot is provided with a contraction cavity, the inside of the said contraction cavity is slidably connected with the connecting plate, the left and right parts of the mutually away sides of the front and rear connecting plates are fixedly connected with the connecting rod, the other end of the said connecting rod is fixedly connected with the pull plate, the mutually away sides of the front and rear connecting plates are evenly fixedly connected with the return spring, the opposite sides of the front and rear connecting plates are evenly fixedly connected with the clamping block, the inside of the said placement slot is connected with the counterweight block, and the middle part of the front and rear sides of the counterweight block is provided with a clamping slot.

[0006] As a further description of the above technical solution:

[0007] The outer wall of the connecting plate fits with the inner wall of the contraction cavity, the front end of the front return spring is fixedly connected to the front side of the front contraction cavity, and the rear end of the rear return spring is fixedly connected to the rear side of the rear contraction cavity.

[0008] As a further description of the above technical solution:

[0009] The connecting rods at the front and rear parts respectively pass through the front and rear sides of the mounting block, and the connecting rods are slidably connected to the mounting block.

[0010] As a further description of the above technical solution:

[0011] The upper and lower sides of the card block are both provided with inclined surfaces, and the upper and lower sides of the card slot are also provided with inclined surfaces.

[0012] As a further description of the above technical solution:

[0013] The moving mechanism includes an installation cavity, a servo motor, a turntable, a vortex groove, a T-slot, a T-block and a connecting column. The installation cavity is opened in the top middle part of the rotating block, the servo motor is fixedly connected to the bottom middle part of the installation cavity, the output shaft end of the servo motor is fixedly connected to the turntable, the top of the turntable is opened with a vortex groove, the top edge of the rotating block is opened with a T-slot, the inside of the T-slot is slidably connected to the T-block, and the top middle part of the T-block is fixedly connected to the connecting column.

[0014] As a further description of the above technical solution:

[0015] The top end of the connecting column is fixedly connected to the middle portion of the bottom of the mounting block, and the connecting column is located inside the vortex groove.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] 1. The rapid counterweight adjustment device for dynamic balancing of rotating machinery, when adding a counterweight block, places the counterweight block inside the placement slot, so that the counterweight block presses the inclined surface on the top of the clamping block, causing the clamping block to shrink, and the connecting plate to press the reset spring. When the clamping block is aligned with the clamping slot, the reset spring resets the clamping block to embed it in the clamping slot, fixing the counterweight block, thereby making the installation of the counterweight block faster, avoiding the use of bonding or welding for installation, and improving the efficiency of adjustment.

[0018] 2. The rapid counterweight adjustment device for dynamic balancing of rotating machinery starts the servo motor, drives the turntable to rotate, thereby rotating the vortex groove, causing the connecting column to move inside the vortex groove, driving the T-block to slide inside the T-slot, thereby changing the position of the connecting column, changing the position of the adjustment mechanism, and thus changing the position of the counterweight block, making it convenient to adjust the position of the counterweight block during rotation, avoiding shutdown adjustment, improving the convenience of device adjustment, and improving adjustment efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of the rotating machinery dynamic balancing rapid counterweight adjustment device proposed by the utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the adjustment mechanism of the fast counterweight adjustment device for dynamic balancing of rotating machinery proposed by the present invention;

[0021] Figure 3 This is a schematic diagram of the structure of the slot opening of the rotating machinery dynamic balancing rapid counterweight adjustment device proposed by the present invention;

[0022] Figure 4 This is a schematic diagram of the structure of the moving mechanism of the rotating machinery dynamic balancing rapid counterweight adjustment device proposed by the utility model.

[0023] In the figure: 100, rotating block; 200, moving mechanism; 210, mounting cavity; 220, servo motor; 230, turntable; 240, vortex groove; 250, T-slot; 260, T-block; 270, connecting column; 300, adjusting mechanism; 310, mounting block; 320, placement groove; 330, contraction cavity; 340, connecting plate; 350, connecting rod; 360, pulling plate; 370, reset spring; 380, clamping block; 390, counterweight block; 391, clamping slot. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, features defined as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0026] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0027] The utility model provides a fast counterweight adjustment device for dynamic balancing of rotating machinery, which makes the installation of counterweight blocks faster, avoids the use of bonding or welding for installation, and improves the efficiency of adjustment. Figure 1-4 , including a rotating block 100, a moving mechanism 200 and an adjusting mechanism 300;

[0028] Please refer again Figure 1 , the rotating block 100 is used to install the moving mechanism 200 and the adjusting mechanism 300;

[0029] Please refer again Figure 1 , the moving mechanism 200 is connected to the top of the rotating block 100 and is used to install the adjusting mechanism 300, and the adjusting mechanism 300 is connected to the top of the moving mechanism 200;

[0030] Please refer again Figure 2-3 The adjustment mechanism 300 includes a mounting block 310, a placement slot 320, a contraction cavity 330, a connecting plate 340, a connecting rod 350, a pull plate 360, a return spring 370, a clamping block 380, a counterweight block 390 and a clamping slot 391;

[0031] Please refer again Figure 2The top of the moving mechanism 200 is connected to a mounting block 310. A placement slot 320 is provided in the middle of the top of the mounting block 310. A contraction cavity 330 is provided in the middle of the front and rear sides of the placement slot 320. A connecting plate 340 is slidably connected to the interior of the contraction cavity 330. The left and right parts of the front and rear connecting plates 340 that are away from each other are fixedly connected to connecting rods 350. The other end of the connecting rod 350 is fixedly connected to a pull plate 360.

[0032] Please refer again Figure 2 The sides of the front and rear connecting plates 340 that are away from each other are evenly fixed with return springs 370, the opposite sides of the front and rear connecting plates 340 are evenly fixed with clamping blocks 380, the interior of the placement slot 320 is connected to a counterweight block 390, and a clamping slot 391 is opened in the middle of the front and rear sides of the counterweight block 390.

[0033] To sum up, when adding the counterweight block 390, the counterweight block 390 is placed inside the placement groove 320, so that the counterweight block 390 squeezes the inclined surface on the top of the block 380, causing the block 380 to shrink, and the connecting plate 340 to squeeze the reset spring 370. When the block 380 is aligned with the slot 391, the reset spring 370 resets the block 380 so that the block 380 is embedded in the slot 391, fixing the counterweight block 390, thereby making the installation of the counterweight block 390 faster, avoiding the use of bonding or welding for installation, and improving the efficiency of adjustment.

[0034] Please refer again Figure 2 The outer wall of the connecting plate 340 is in contact with the inner wall of the shrinkage cavity 330 , the front end of the front return spring 370 is fixedly connected to the front side of the front shrinkage cavity 330 , and the rear end of the rear return spring 370 is fixedly connected to the rear side of the rear shrinkage cavity 330 .

[0035] Please refer again Figure 2 The front and rear connecting rods 350 respectively pass through the front and rear sides of the mounting block 310 , and the connecting rods 350 are slidably connected to the mounting block 310 .

[0036] Please refer again Figure 2 The upper and lower sides of the block 380 are both provided with inclined surfaces, and the upper and lower sides of the slot 391 are also provided with inclined surfaces.

[0037] Please refer again Figure 4The moving mechanism 200 includes an installation cavity 210, a servo motor 220, a turntable 230, a vortex groove 240, a T-slot 250, a T-block 260 and a connecting column 270. An installation cavity 210 is opened in the middle of the top of the rotating block 100, and the servo motor 220 is fixedly connected to the middle of the bottom of the installation cavity 210. The output shaft end of the servo motor 220 is fixedly connected to the turntable 230. The vortex groove 240 is opened through the top of the turntable 230. A T-slot 250 is opened on the top edge of the rotating block 100. The T-block 260 is slidably connected inside the T-slot 250, and the connecting column 270 is fixedly connected to the top middle of the T-block 260.

[0038] Please refer again Figure 4 The top of the connecting column 270 is fixedly connected to the middle of the bottom of the mounting block 310 , and the connecting column 270 is located inside the vortex groove 240 .

[0039] To sum up, by starting the servo motor 220, the turntable 230 is driven to rotate, thereby rotating the vortex groove 240, causing the connecting column 270 to move inside the vortex groove 240, driving the T-block 260 to slide inside the T-slot 250, thereby changing the position of the connecting column 270, changing the position of the adjustment mechanism 300, and thus changing the position of the counterweight block 390, making it convenient to adjust the position of the counterweight block 390 during rotation, avoiding shutdown adjustment, improving the convenience of device adjustment, and improving adjustment efficiency.

[0040] When the locking block 380 is aligned with the locking slot 391, the reset spring 370 resets the locking block 380 so that the locking block 380 is embedded in the locking slot 391, thereby fixing the counterweight 390, thereby making the installation of the counterweight 390 faster. When the rotating block 100 rotates, the servo motor 220 is started to drive the turntable 230 to rotate, thereby rotating the vortex groove 240, causing the connecting column 270 to move inside the vortex groove 240, driving the T-block 260 to slide inside the T-slot 250, thereby changing the position of the connecting column 270, changing the position of the adjustment mechanism 300, and changing the position of the counterweight 390 for easy adjustment.

[0041] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the illustrative use of the above terms does not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0042] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A fast counterweight adjustment device for dynamic balancing of rotating machinery, characterized by: The invention comprises a rotating block (100), a moving mechanism (200) and an adjusting mechanism (300), wherein the moving mechanism (200) is connected to the top of the rotating block (100), the adjusting mechanism (300) is connected to the top of the moving mechanism (200), the adjusting mechanism (300) comprises a mounting block (310), a placement slot (320), a contraction cavity (330), a connecting plate (340), a connecting rod (350), a pulling plate (360), a return spring (370), a clamping block (380), a counterweight (390) and a clamping slot (391), the top of the moving mechanism (200) is connected to the mounting block (310), and a placement slot (320) is provided in the middle of the top of the mounting block (310). A contraction cavity (330) is provided in the middle of the front and rear sides of the placement slot (320), a connecting plate (340) is slidably connected inside the contraction cavity (330), a connecting rod (350) is fixedly connected to the left and right parts of the mutually distant sides of the front and rear connecting plates (340), a pulling plate (360) is fixedly connected to the other end of the connecting rod (350), a return spring (370) is evenly fixedly connected to the mutually distant sides of the front and rear connecting plates (340), a clamping block (380) is evenly fixedly connected to the opposite sides of the front and rear connecting plates (340), a counterweight block (390) is connected inside the placement slot (320), and a clamping groove (391) is provided in the middle of the front and rear sides of the counterweight block (390).

2. The rapid counterweight adjustment device for dynamic balancing of rotating machinery according to claim 1, characterized in that: The outer wall of the connecting plate (340) is fitted with the inner wall of the shrinkage cavity (330), the front end of the front return spring (370) is fixedly connected to the front side of the front shrinkage cavity (330), and the rear end of the rear return spring (370) is fixedly connected to the rear side of the rear shrinkage cavity (330).

3. The rapid counterweight adjustment device for dynamic balancing of rotating machinery according to claim 1, characterized in that: The front and rear connecting rods (350) respectively penetrate the front and rear sides of the mounting block (310), and the connecting rods (350) are slidably connected to the mounting block (310).

4. The rapid counterweight adjustment device for dynamic balancing of rotating machinery according to claim 1, characterized in that: The upper and lower sides of the clamping block (380) are both provided with inclined surfaces, and the upper and lower sides of the clamping slot (391) are also provided with inclined surfaces.

5. The rapid counterweight adjustment device for dynamic balancing of rotating machinery according to claim 1, characterized in that: The moving mechanism (200) comprises an installation cavity (210), a servo motor (220), a turntable (230), a vortex groove (240), a T-slot (250), a T-block (260) and a connecting column (270); the installation cavity (210) is provided in the middle of the top of the rotating block (100); the servo motor (220) is fixedly connected to the middle of the bottom of the installation cavity (210); the output shaft end of the servo motor (220) is fixedly connected to the turntable (230); the vortex groove (240) is provided through the top of the turntable (230); the top edge of the rotating block (100) is provided with a T-slot (250); the inside of the T-slot (250) is slidably connected to the T-block (260); and the top middle of the T-block (260) is fixedly connected to the connecting column (270).

6. The rapid counterweight adjustment device for dynamic balancing of rotating machinery according to claim 5, characterized in that: The top end of the connecting column (270) is fixedly connected to the middle portion of the bottom of the mounting block (310), and the connecting column (270) is located inside the vortex groove (240).

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