Dynamic balance mechanism for compression roller

Abstract

The utility model discloses a dynamic balance mechanism for a compression roller, which is characterized in that two symmetrically arranged first threaded rods are arranged on the side surface of a support frame, an arc-shaped positioning piece is arranged on the two first threaded rods in a sliding manner, and a plurality of limiting holes which are arranged at equal intervals are formed in the arc-shaped positioning piece; a first spring arranged outside the first threaded rod in a sleeving mode is arranged between the arc-shaped positioning piece and the supporting frame, the tail end of the first threaded rod is in threaded connection with a locking nut, a movable square motor is arranged on the side, away from the supporting frame, of the arc-shaped positioning piece, a rotating shaft is fixedly connected to an output shaft of the square motor, and a drill bit is fixedly connected to the tail end of the rotating shaft. The diameter of the rotating shaft is smaller than that of the drill bit. Through the arrangement of the arc-shaped positioning piece, a plurality of evenly-arranged limiting holes can be formed in the heavy side of the roller rotor through the drilling machine, then the situation that new unbalance is increased due to uneven hole forming is avoided, the weight removing mode of the roller rotor is optimized, and then the efficiency of achieving dynamic balance of the roller rotor is improved.

Description

Technical Field

[0001] This utility model relates to the field of dynamic balancing machine technology, and specifically to a dynamic balancing mechanism for pressure rollers. Background Technology

[0002] A balancing machine is an instrument used to determine rotor imbalance. The results are then used to correct the imbalance and improve the mass distribution of the rotor. Balancing involves two steps: measuring and correcting the imbalance. The balancing machine is primarily used for measuring the imbalance, while the correction often relies on auxiliary equipment such as drilling machines, milling machines, and spot welding machines, or manual methods such as adding or removing weights to eliminate the imbalance. Dynamic balancing machines measure and analyze imbalance based on the principles of centrifugal force and vibration during rotation. The specific process is as follows:

[0003] Driven rotation: The motor drives the roller rotor to rotate through the transmission device, providing the rotation conditions for measurement.

[0004] Vibration occurs because the mass distribution of roller rotors is uneven, resulting in an unbalanced centrifugal force during rotation. This centrifugal force causes the rotor's support structure to vibrate.

[0005] Signal Acquisition: Sensors are responsible for acquiring vibration and rotational speed signals. Vibration sensors convert mechanical vibrations into electrical signals, while rotational speed sensors measure the rotor's rotational speed. These signals form the basis for subsequent analysis.

[0006] Data processing: The acquired signals are transmitted to the central processing unit, which typically includes a motherboard, filter board, A / D acquisition card, etc. The signals are converted, filtered and calculated. Through specific algorithms and mathematical models, the magnitude and phase of the unbalance of the roller rotor are obtained.

[0007] Results Display and Correction: The calculation results will be displayed on the screen. Based on the displayed magnitude and location of the imbalance, the operator can correct it by adding or removing mass from the rotor, such as adding a balance block to a lighter part or removing a certain mass from a heavier part, so that the rotor can achieve dynamic balance.

[0008] The roller rotor to be balanced is placed on a support with hydrostatic bearings. If there is an imbalance, its gravitational torque about the axis will cause the rotor to roll on the horizontal guide rail until the imbalance is at its lowest point and then it will come to rest.

[0009] Existing dynamic balancing machines have certain drawbacks. When drilling holes in heavier areas to reduce weight, the drilling positions are marked manually, resulting in uneven arrangement of multiple holes. This introduces new influencing factors into the balance adjustment and increases the workload of balance adjustment. Utility Model Content

[0010] The purpose of this invention is to provide a dynamic balancing mechanism for pressure rollers to address the aforementioned shortcomings in the prior art.

[0011] To achieve the above objectives, this utility model provides the following technical solution: a dynamic balancing mechanism for a pressure roller, comprising: a mounting base, a support frame fixedly connected to the mounting base, two symmetrically arranged first threaded rods on the side of the support frame, an arc-shaped positioning plate slidably disposed on the two first threaded rods, a plurality of equally spaced limiting holes on the arc-shaped positioning plate, a first spring sleeved on the first threaded rods between the arc-shaped positioning plate and the support frame, a locking nut threadedly connected to the end of the first threaded rods, a movable square motor disposed on the side of the arc-shaped positioning plate away from the support frame, a rotating shaft fixedly connected to the output shaft of the square motor, a drill bit fixedly connected to the end of the rotating shaft, the diameter of the rotating shaft being smaller than the diameter of the drill bit.

[0012] Furthermore, the arc-shaped positioning piece has two rows of limiting holes of different sizes.

[0013] Furthermore, each of the inner sides of the support frame is fixedly connected to a mounting side plate, and one end of the first threaded rod is fixedly connected to the mounting side plate.

[0014] Furthermore, an adsorption plate is fixedly connected to the outside of the support frame, and a perforation mechanism is adsorbed on the adsorption plate.

[0015] Furthermore, the punching mechanism includes a first L-shaped mounting bracket, which is magnetically attached to the adsorption plate. A second L-shaped mounting bracket is fixedly connected to the first L-shaped mounting bracket, and the square motor is slidably disposed in a groove opened on the second L-shaped mounting bracket.

[0016] Furthermore, a second threaded rod is threadedly connected to the first L-shaped mounting bracket, and a second spring is sleeved on the second threaded rod. One end of the second spring is fixedly connected to the square motor, and the other end of the second spring is fixedly connected to the first L-shaped mounting bracket.

[0017] Furthermore, a handle is fixedly connected to the end of the second threaded rod away from the square motor.

[0018] Furthermore, the diameter of the limiting hole is just large enough to allow the drill bit to pass through.

[0019] The present invention provides a dynamic balancing mechanism for pressure rollers, which offers the following advantages:

[0020] This invention, by setting an arc-shaped positioning plate, enables the drilling machine to open multiple evenly arranged limiting holes on the unbalanced side of the roller rotor, thereby avoiding the increase of new imbalance due to uneven hole opening, optimizing the way the roller rotor is unbalanced, and thus accelerating the efficiency of the roller rotor to achieve dynamic balance.

[0021] It should be understood that the foregoing general description and the following detailed description are exemplary and illustrative only, and are not intended to limit this disclosure.

[0022] This application provides an overview of various implementations or examples of the technology described in this disclosure, and is not a full disclosure of the entire scope or all features of the disclosed technology. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0024] Figure 1 A first-view structural schematic diagram provided for an embodiment of this utility model;

[0025] Figure 2 This is a schematic diagram of the second-view structure provided for an embodiment of the present utility model;

[0026] Figure 3 Provided for the embodiments of this utility model Figure 1 Enlarged view of point A in the middle;

[0027] Figure 4 Provided for the embodiments of this utility model Figure 2 Enlarged view of section B in the middle.

[0028] Explanation of reference numerals in the attached figures:

[0029] 1. Mounting base; 2. Support frame; 21. Adsorption plate; 22. Mounting side plate; 23. Support base; 3. Arc-shaped positioning piece; 31. First threaded rod; 32. Locking nut; 33. First spring; 34. Limiting hole; 4. First L-shaped mounting bracket; 41. Magnetic base; 42. Second L-shaped mounting bracket; 5. Square motor; 51. Rotating shaft; 52. Drill bit; 6. Second spring; 7. Second threaded rod; 71. Handle. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure. All other embodiments obtained by those skilled in the art based on the described embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.

[0031] Please see Figures 1-4 A dynamic balancing mechanism for a pressure roller includes: a mounting base 1, a support frame 2 fixedly connected to the mounting base 1, two symmetrically arranged first threaded rods 31 on the side of the support frame 2, an arc-shaped positioning plate 3 slidably arranged on the two first threaded rods 31, a plurality of equally spaced limiting holes 34 on the arc-shaped positioning plate 3, a first spring 33 sleeved on the first threaded rods 31 between the arc-shaped positioning plate 3 and the support frame 2, a locking nut 32 threaded to the end of the first threaded rod 31, a movable square motor 5 on the side of the arc-shaped positioning plate 3 away from the support frame 2, a rotating shaft 51 fixedly connected to the output shaft of the square motor 5, a drill bit 52 fixedly connected to the end of the rotating shaft 51, and the diameter of the rotating shaft 51 being smaller than the diameter of the drill bit 52.

[0032] Specifically, by setting an arc-shaped positioning piece 3, this utility model can enable the drilling machine to open multiple evenly arranged limiting holes 34 on the unbalanced side of the roller rotor, thereby avoiding the increase of new imbalance due to uneven hole opening, optimizing the way the roller rotor is unbalanced, and thus accelerating the efficiency of the roller rotor to achieve dynamic balance.

[0033] Furthermore, two rows of limiting holes 34 of different sizes are opened on the arc-shaped positioning plate 3. The diameter of the limiting holes 34 is just enough to accommodate the drill bit 52. By setting two rows of different limiting holes 34, limiting holes 34 of different diameters can be selectively opened to achieve more precise adjustment of the imbalance.

[0034] Specifically, first, the drilling position is determined by passing the drill bit 52 through the corresponding limiting hole 34 and fixing the square motor 5 in that position. Then, the locking nut 32 is rotated so that the two locking nuts 32 move closer to the square motor 5. Then, under the elastic force of the first spring 33, the arc-shaped positioning piece 3 moves along the drill bit 52 and the rotating shaft 51 toward the square motor 5 until the position of the arc-shaped positioning piece 3 is at the middle of the rotating shaft 51. The square motor 5, the rotating shaft 51, and the drill bit 52 are all arranged horizontally, while the arc-shaped positioning piece 3 is arranged perpendicular to the square motor 5.

[0035] Furthermore, each inner side of the support frame 2 is fixedly connected to a mounting side plate 22, and one end of the first threaded rod 31 is fixedly connected to the mounting side plate 22.

[0036] For details, please refer to Figure 3 The mounting side plate 22 is fixedly connected to the inner side of the support frame 2 and is located at the left edge of the side, so that the minimum distance between the arc-shaped positioning piece 3 and the mounting side plate 22 is the thickness of the support frame 2 minus the thickness of the mounting side plate 22, which is the initial position of the arc-shaped positioning piece 3. The arc-shaped positioning piece 3 is attached to the side of the support frame 2.

[0037] Furthermore, an adsorption plate 21 is fixedly connected to the outer side of the support frame 2. A punching mechanism is adsorbed on the adsorption plate 21. The punching mechanism includes a first L-shaped mounting bracket 4, which is adsorbed onto the adsorption plate 21 via a magnetic base 41. A second L-shaped mounting bracket 42 is fixedly connected to the first L-shaped mounting bracket 4. The connection point between the two is referenced. Figure 3 The square motor 5 is slidably disposed in a groove opened on the second L-shaped mounting bracket 42. The first L-shaped mounting bracket 4 is threadedly connected to a second threaded rod 7. A second spring 6 is sleeved on the second threaded rod 7. One end of the second spring 6 is fixedly connected to the square motor 5, and the other end of the second spring 6 is fixedly connected to the first L-shaped mounting bracket 4. A handle 71 is fixedly connected to the end of the second threaded rod 7 away from the square motor 5.

[0038] For details, please refer to Figure 3 and Figure 4 By rotating the handle 71, the second threaded rod 7 moves in the left and right directions. In conjunction with the second spring 6, the square motor 5 can move in the left and right directions. The magnetic base 41 is equipped with an electromagnet, and the adsorption plate 21 is an iron block. After determining the drilling position, the drill bit 52 is aligned with the corresponding limiting hole 34 on the arc-shaped positioning plate 3. The first L-shaped mounting bracket 4 is then attracted to the adsorption plate 21 by energizing the magnetic base 41. Then, the handle 71 is rotated to move the square motor 5 towards the support frame 2 until the drill bit 52 is pressed against the side of the roller rotor where the balance needs to be adjusted. Then, the arc-shaped positioning plate 3 is moved to the middle position of the rotating shaft 51, and the square motor 5 is started, so that the drill bit 52 opens a hole on the side of the roller rotor. The drilling depth is controlled by rotating the handle 71.

[0039] In this utility model, reference Figures 1 to 4First, the roller rotor is mounted on two support bases 23 and driven to rotate. The measuring system installed on the support frame 2 displays the imbalance of the roller rotor on the display screen. Then, the roller rotor is kept stationary and rotated under the action of gravity until the unbalanced side of the roller rotor rotates to the lowest position. Then, the drilling position is selected, the drill bit 52 is aligned with the limiting hole 34 of the corresponding drilling position, and the drilling mechanism is fixed by energizing the magnetic seat 41 at this position. Then, the handle 71 is turned to move the square motor 5 towards the support frame 2 until the drill bit 52 is against the side of the roller rotor where the balance needs to be adjusted. Then, the arc-shaped positioning piece 3 is moved to the middle of the rotating shaft 51, and the square motor 5 is started so that the drill bit 52 opens a hole on the side of the roller rotor. The drilling depth is controlled by turning the handle 71.

[0040] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A dynamic balancing mechanism for a pressure roller, comprising: The mounting base (1) is characterized in that: a support frame (2) is fixedly connected to the mounting base (1), two symmetrically arranged first threaded rods (31) are provided on the side of the support frame (2), an arc-shaped positioning plate (3) is slidably provided on the two first threaded rods (31), a plurality of equally spaced limiting holes (34) are provided on the arc-shaped positioning plate (3), a first spring (33) is provided between the arc-shaped positioning plate (3) and the support frame (2) and sleeved on the first threaded rod (31), a locking nut (32) is threadedly connected to the end of the first threaded rod (31), a movable square motor (5) is provided on the side of the arc-shaped positioning plate (3) away from the support frame (2), a rotating shaft (51) is fixedly connected to the output shaft of the square motor (5), a drill bit (52) is fixedly connected to the end of the rotating shaft (51), and the diameter of the rotating shaft (51) is smaller than the diameter of the drill bit (52).

2. The dynamic balancing mechanism for a pressure roller according to claim 1, characterized in that, The arc-shaped positioning piece (3) has two rows of limiting holes (34) of different sizes.

3. The dynamic balancing mechanism for a pressure roller according to claim 1, characterized in that, Each of the inner sides of the support frame (2) is fixedly connected to a mounting side plate (22), and one end of the first threaded rod (31) is fixedly connected to the mounting side plate (22).

4. The dynamic balancing mechanism for a pressure roller according to claim 1, characterized in that, An adsorption plate (21) is fixedly connected to the outside of the support frame (2), and a perforation mechanism is adsorbed on the adsorption plate (21).

5. The dynamic balancing mechanism for a pressure roller according to claim 4, characterized in that, The punching mechanism includes a first L-shaped mounting bracket (4), which is attached to the adsorption plate (21) by a magnetic base (41). A second L-shaped mounting bracket (42) is fixedly connected to the first L-shaped mounting bracket (4), and the square motor (5) is slidably disposed in a groove opened on the second L-shaped mounting bracket (42).

6. The dynamic balancing mechanism for a pressure roller according to claim 5, characterized in that, The first L-shaped mounting bracket (4) is threaded with a second threaded rod (7), and the second threaded rod (7) is fitted with a second spring (6). One end of the second spring (6) is fixedly connected to the square motor (5), and the other end of the second spring (6) is fixedly connected to the first L-shaped mounting bracket (4).

7. The dynamic balancing mechanism for a pressure roller according to claim 6, characterized in that, A handle (71) is fixedly connected to the end of the second threaded rod (7) away from the square motor (5).

8. The dynamic balancing mechanism for a pressure roller according to claim 2, characterized in that, The diameter of the limiting hole (34) is just large enough to allow the drill bit (52) to pass through.

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