A wire drawing machine shaft assembly counterweight structure

Abstract

This utility model discloses a balancing counterweight structure for a wire drawing machine shaft assembly, relating to the technical field of wire drawing machine shaft assemblies. The balancing counterweight structure includes a wire drawing machine shaft assembly, which is a hollow tubular shape. The counterweight assembly includes a fixed plate with a groove on its surface and multiple second bolt holes. A third counterweight block is slidably connected inside the groove, and the third counterweight block has two second bolt holes on its surface. The centrifugal force arm is adjusted by sliding the left-side third counterweight block radially along the groove, supporting the combined installation and fine-tuning of multiple third counterweight blocks, ensuring radial and circumferential positioning accuracy during installation. The limiting block of the third counterweight block engages with the limiting groove, and the position is locked by the third limiting bolt, preventing counterweight displacement due to centrifugal force during high-speed rotation. This achieves high-precision balance fine-tuning and solves the problem that traditional fixed counterweight blocks cannot adapt to dynamic loads.

Description

Technical Field

[0001] This utility model relates to the technical field of wire drawing machine shaft assembly, and in particular to a balance weight structure for a wire drawing machine shaft assembly. Background Technology

[0002] In the field of metal wire drawing, wire drawing machines are key equipment used to draw metal wires through dies to reduce their diameter and increase their strength. As the core component of the transmission system, the balance of the wire drawing machine's shaft assembly directly affects the drawing accuracy, wire surface quality, and the equipment's lifespan. When the shaft assembly becomes unbalanced during high-speed rotation, it generates severe vibration and noise, leading not only to quality problems such as dimensional deviations and surface scratches, but also accelerating the wear of components like bearings and couplings, and even causing equipment failure and safety hazards. Therefore, proper balancing and weight distribution of the wire drawing machine's shaft assembly is crucial.

[0003] Currently, some equipment uses a fixed counterweight structure, where counterweights of fixed weight and position are pre-installed on both sides of the shaft assembly, and the initial counterweight state is determined through calculation and experimentation. However, this method is difficult to adapt to dynamic load changes caused by factors such as changes in wire specifications and die wear during wire drawing. The fixed-position counterweights cannot adapt to these changes, and once the load conditions change, the original balance of the shaft assembly may be broken, resulting in vibration imbalance and affecting wire drawing accuracy and equipment lifespan. Therefore, this utility model proposes a novel solution. Utility Model Content

[0004] The purpose of this utility model is to at least solve one of the technical problems existing in the prior art, and to provide a balance counterweight structure for the shaft assembly of a wire drawing machine. This structure can solve the problem that the method of pre-installing counterweights with fixed weights and positions on both sides of the shaft assembly is difficult to adapt to the dynamic changes in load caused by factors such as changes in wire specifications and die wear during the wire drawing process. The counterweights with fixed positions are difficult to adapt to these changes. Once the load conditions change, the original balance state of the shaft assembly may be broken, and the shaft assembly will vibrate and become unbalanced, affecting the wire drawing accuracy and equipment life.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a balance counterweight structure for a wire drawing machine shaft assembly, comprising a wire drawing machine shaft group, wherein the wire drawing machine shaft group is in the shape of a hollow tube;

[0006] The counterweight assembly is mounted on the wire drawing machine shaft assembly. The counterweight assembly includes a fixed plate, which is located on the left side of the wire drawing machine shaft assembly. The surface of the fixed plate has a sliding groove and multiple second bolt holes. A third counterweight block is slidably connected inside the sliding groove. The surface of the fixed plate has multiple limiting grooves. Two limiting blocks are fixedly connected to the surface of the third counterweight block, and the two limiting blocks engage with the corresponding limiting grooves.

[0007] Two second bolt holes are provided on the surface of the third counterweight. The internal threads of the second bolt holes on the surface of the fixed plate and the third counterweight are connected to the third limit bolts. The fixed plate and the third counterweight are fixed together by the third limit bolts.

[0008] Preferably, the number of the sliding groove, the second bolt hole, and the limiting groove are all in multiple sets arranged in a circular array on the surface of the wire drawing machine shaft assembly.

[0009] Preferably, the left side of the wire drawing machine shaft assembly is provided with an annular second positioning groove, the left end of the wire drawing machine shaft assembly is provided with a plurality of first bolt holes, and the surface of the fixing plate is also provided with a plurality of first bolt holes;

[0010] The first bolt hole on the surface of the wire drawing machine shaft assembly and the fixed plate is internally threaded with a second limiting bolt. The wire drawing machine shaft assembly and the fixed plate are fixed together by the second limiting bolt, and the fixed plate is engaged with the second positioning groove.

[0011] Preferably, the right side of the wire drawing machine shaft assembly is provided with an annular first positioning groove, and the right side of the wire drawing machine shaft assembly is also provided with multiple first bolt holes;

[0012] A first counterweight is provided on the right side of the wire drawing machine shaft assembly, and a second counterweight is provided on the right side of the wire drawing machine shaft assembly. Both the first and second counterweights are slidably connected to the first positioning groove.

[0013] Preferably, the surface of the first counterweight is also provided with a first bolt hole;

[0014] The first bolt hole on the right side of the wire drawing machine shaft assembly is connected to the first bolt hole on the surface of the first counterweight by a first limit bolt. The wire drawing machine shaft assembly and the first counterweight are fixed together by the first limit bolt.

[0015] Preferably, the surface of the second counterweight is also provided with the first bolt hole;

[0016] The first bolt hole on the right side of the wire drawing machine shaft assembly and the first bolt hole on the surface of the second counterweight are internally threaded with a first limiting bolt, and the wire drawing machine shaft assembly and the second counterweight are fixed together by the first limiting bolt.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. The balance counterweight structure of the wire drawing machine shaft assembly adjusts the centrifugal force arm by sliding the third counterweight block on the left side along the radial direction of the slide groove. The slide groove, the second bolt hole, the limiting groove and other structures are arranged in a ring array, which supports the combined installation and position fine adjustment of multiple third counterweight blocks. The fixed plate is engaged with the wire drawing machine shaft assembly through the second positioning groove and fixed by the second limiting bolt to ensure the radial and circumferential positioning accuracy during installation. The limiting block of the third counterweight block is engaged with the limiting groove and locked in position with the third limiting bolt to avoid the displacement of the counterweight block caused by centrifugal force during high-speed rotation, thereby achieving high-precision balance fine adjustment and solving the problem that traditional fixed counterweight blocks cannot adapt to dynamic loads. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0019] Figure 1 This is a schematic diagram of a counterweight structure for a wire drawing machine shaft assembly according to the present invention;

[0020] Figure 2 This is a schematic cross-sectional view of the shaft assembly of the wire drawing machine of this utility model;

[0021] Figure 3 This is a schematic diagram of the fixing plate of this utility model;

[0022] Figure 4 This is a schematic diagram of the third counterweight of this utility model;

[0023] Figure 5 This is a schematic diagram of the first counterweight of this utility model;

[0024] Figure 6 This is a schematic diagram of the second counterweight of this utility model;

[0025] Figure 7 This utility model Figure 3 Enlarged diagram of point A in the middle.

[0026] Reference numerals in the attached drawings: 1. Wire drawing machine shaft assembly; 2. First positioning groove; 3. Second positioning groove; 4. Fixing plate; 5. First bolt hole; 6. First counterweight; 7. Second counterweight; 8. First limiting bolt; 9. Slide groove; 10. Third counterweight; 11. Second bolt hole; 12. Limiting groove; 13. Limiting block; 14. Third limiting bolt; 15. Second limiting bolt. Detailed Implementation

[0027] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0028] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0029] In the description of this utility model, terms such as greater than, less than, and exceeding are understood to exclude the stated number, while terms such as above, below, and within are understood to include the stated number. The use of terms like "first" and "second" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the quantity or sequence of the indicated technical features.

[0030] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0031] Please see Figure 1-7 This utility model provides a technical solution: a counterweight structure for a wire drawing machine shaft assembly, including a wire drawing machine shaft assembly 1, which is a hollow tube, a counterweight assembly, which is mounted on the wire drawing machine shaft assembly 1, and a fixed plate 4, which is located on the left side of the wire drawing machine shaft assembly 1. The fixed plate 4 has a sliding groove 9 on its surface and multiple second bolt holes 11 on its surface. A third counterweight block 10 is slidably connected inside the sliding groove 9. The fixed plate 4 has multiple limiting grooves 12 on its surface. Two limiting blocks 13 are fixedly connected to the surface of the third counterweight block 10. The two limiting blocks 13 are engaged with the corresponding limiting grooves 12. Two second bolt holes 11 are opened on the surface of the third counterweight block 10. A third limiting bolt 14 is threadedly connected inside the second bolt holes 11 on the surfaces of the fixed plate 4 and the third counterweight block 10. The fixed plate 4 and the third counterweight block 10 are fixed together by the third limiting bolt 14.

[0032] Multiple sets of sliding grooves 9, second bolt holes 11, and limiting grooves 12 are arranged in a circular array on the surface of the wire drawing machine shaft assembly 1.

[0033] The left side of the wire drawing machine shaft assembly 1 is provided with an annular second positioning groove 3. The left end of the wire drawing machine shaft assembly 1 is provided with multiple first bolt holes 5. The surface of the fixed plate 4 is also provided with multiple first bolt holes 5. The first bolt holes 5 on the surfaces of the wire drawing machine shaft assembly 1 and the fixed plate 4 are internally threaded with second limiting bolts 15. The wire drawing machine shaft assembly 1 and the fixed plate 4 are fixed together by the second limiting bolts 15. The fixed plate 4 is engaged with the second positioning groove 3.

[0034] The right side of the wire drawing machine shaft assembly 1 is provided with an annular first positioning groove 2, and the right side of the wire drawing machine shaft assembly 1 is also provided with multiple first bolt holes 5. The right side of the wire drawing machine shaft assembly 1 is provided with a first counterweight 6 and a second counterweight 7. The first counterweight 6 and the second counterweight 7 are both slidably connected to the first positioning groove 2.

[0035] The surface of the first counterweight 6 is also provided with a first bolt hole 5. The first bolt hole 5 on the right side of the wire drawing machine shaft assembly 1 and the first bolt hole 5 on the surface of the first counterweight 6 are connected by a first limiting bolt 8. The wire drawing machine shaft assembly 1 and the first counterweight 6 are fixed together by the first limiting bolt 8.

[0036] The surface of the second counterweight 7 is also provided with a first bolt hole 5. The first bolt hole 5 on the right side of the wire drawing machine shaft assembly 1 and the first bolt hole 5 on the surface of the second counterweight 7 are connected by a first limiting bolt 8. The wire drawing machine shaft assembly 1 and the second counterweight 7 are fixed together by the first limiting bolt 8.

[0037] When using the device, the fixed plate 4 is connected to the first bolt hole 5 on the left side of the wire drawing machine shaft assembly 1 by the second limiting bolt 15, and its edge is engaged with the second positioning groove 3 on the left side of the shaft assembly to ensure the positioning accuracy during installation.

[0038] Since the first bolt holes 5 of the wire drawing machine shaft assembly 1 and the fixed plate 4 are multiple and distributed in a ring, the circumferential installation angle of the fixed plate 4 can be adjusted by selecting different bolt hole alignments, which provides a basis for the subsequent position adjustment of the third counterweight 10.

[0039] The surface of the fixed disk 4 has a ring array of sliding grooves 9. The third counterweight 10 is slidably connected to the sliding grooves 9 through the bottom limiting block 13. It can move along the sliding grooves 9 in the radial direction of the fixed disk 4 to change the centrifugal arm of the third counterweight 10.

[0040] The limiting groove 12 on the surface of the third counterweight 10 engages with the limiting block 13 to ensure stability during sliding; after moving to the target position, the third counterweight 10 is fixed on the fixed plate 4 by passing the third limiting bolt 14 through the second bolt hole 11 of the fixed plate 4 and the third counterweight 10.

[0041] Since the slide groove 9, the second bolt hole 11, and the limiting groove 12 are all arranged in a ring array, multiple third counterweights 10 can be installed in different positions of the slide groove 9 according to the imbalance of the shaft assembly, and the balance torque can be precisely adjusted by combining the counterweights.

[0042] A first annular positioning groove 2 is provided on the right side of the wire drawing machine shaft assembly 1. The first counterweight 6 and the second counterweight 7 are slidably connected to the first positioning groove 2 through their bottoms, and can move in the circumferential direction on the right side of the shaft assembly to adjust the angle position of the counterweights.

[0043] The first bolt holes 5 on the surfaces of the first counterweight 6 and the second counterweight 7 are connected to the first bolt hole 5 on the right side of the wire drawing machine shaft assembly 1 by the first limiting bolt 8. Different bolt hole alignments can be selected during fixing to achieve circumferential angle adjustment of the first counterweight 6 and the second counterweight 7.

[0044] Multiple counterweights, such as the first counterweight 6 and the second counterweight 7, can be installed on the right side at the same time. By changing the number, weight, or circumferential position of the counterweights, the balance adjustment accuracy can be further refined. When the shaft assembly is biased in a certain direction, a counterweight can be added at the first positioning groove 2 in the corresponding direction or the position of the existing counterweight can be adjusted to counteract the eccentric torque.

[0045] Start the wire drawing machine and detect the vibration amplitude and phase of the high-speed rotation of the wire drawing machine shaft assembly 1 by connecting an external vibration sensor to determine the magnitude and location of the imbalance. Based on the detection results of the vibration sensor, loosen the third limit bolt 14 and slide the third counterweight 10 along the slide groove 9 to the target position, which is the opposite direction of the greatest centrifugal force, and fix it with the third limit bolt 14. If a single counterweight is insufficient, multiple third counterweights 10 can be installed in the slide groove 9 for combination adjustment. By moving or increasing or decreasing the number of the first counterweight 6 and the second counterweight 7, and adjusting their circumferential position by selecting different bolt holes through the first limit bolt 8, the remaining imbalance can be further compensated.

[0046] Restart the equipment and detect vibration parameters using an external vibration sensor. If the balance requirement is not met, repeat the above steps to adjust the position or number of counterweights until the vibration amplitude of the shaft assembly during operation drops to the allowable range.

[0047] The centrifugal arm is adjusted by radially sliding the third counterweight 10 on the left, and the angle position is adjusted by circumferentially moving the first counterweight 6 and the second counterweight 7 on the right, so as to achieve three-dimensional balance adjustment of weight, radius and angle. At the same time, the balance adjustment is further carried out by adjusting the installation angle of the fixed plate 4 relative to the wire drawing machine shaft group 1 to adapt to load changes under different working conditions.

[0048] The slide 9, the first bolt hole 5, the second bolt hole 11 and other structures are arranged in a ring array. By increasing or decreasing the number of the first counterweight 6, the second counterweight 7 and the third counterweight 10, and by combining the first counterweight 6, the second counterweight 7 and the third counterweight 10 in different positions, high-precision balance adjustment can be achieved, solving the problem that traditional fixed counterweights cannot adapt to dynamic loads.

[0049] The fixed plate 4 is connected to the wire drawing machine shaft assembly 1 through the second positioning groove 3 and the second limit bolt 15, which facilitates disassembly and readjustment and reduces maintenance costs.

[0050] Furthermore, the centrifugal force arm is adjusted by sliding the third counterweight 10 on the left along the radial direction of the slide groove 9. The slide groove 9, the second bolt hole 11, the limiting groove 12 and other structures are arranged in a ring array to support the combined installation and position fine adjustment of multiple third counterweights 10. The fixed plate 4 is engaged with the wire drawing machine shaft assembly 1 through the second positioning groove 3 and fixed by the second limiting bolt 15 to ensure radial and circumferential positioning accuracy during installation. The limiting block 13 of the third counterweight 10 is engaged with the limiting groove 12 and locked in position with the third limiting bolt 14 to avoid the counterweight displacement caused by centrifugal force during high-speed rotation, thereby achieving high-precision balance fine adjustment and solving the problem that traditional fixed counterweights cannot adapt to dynamic loads.

[0051] Structural Description: Wire drawing machine shaft assembly 1: It is a hollow tube and is the main body of the entire shaft assembly, providing installation support for other components; there is an annular second positioning groove 3 on the left side and an annular first positioning groove 2 on the right side, used for positioning when installing the fixed plate 4, the first counterweight 6 and the second counterweight 7; the first bolt holes 5 distributed at both ends and on the surface are used for connecting and fixing with the fixed plate 4, the first counterweight 6 and the second counterweight 7;

[0052] Fixed plate 4: Located on the left side of the wire drawing machine shaft assembly 1, the sliding groove 9 and the second bolt hole 11 on the surface are used to install the third counterweight 10; by engaging with the second positioning groove 3 and cooperating with the second limiting bolt 15 and the first bolt hole 5, its circumferential installation angle can be adjusted, laying the foundation for the position adjustment of the third counterweight 10;

[0053] The third counterweight 10 is slidably connected to the slide groove 9 of the fixed plate 4 via the bottom limiting block 13, and can move in the radial direction of the fixed plate 4 to change the centrifugal force arm and thus adjust the counterweight; the second bolt hole 11 on the surface and the third limiting bolt 14 cooperate to fix it on the fixed plate 4.

[0054] The limiting groove 12 on the surface engages with the limiting block 13 to ensure stability during sliding;

[0055] First counterweight 6 and second counterweight 7: are slidably connected to the first positioning groove 2 on the right side of the wire drawing machine shaft assembly 1, and can move circumferentially on the right side of the shaft assembly. They are fixed by the first limiting bolt 8 and the first bolt hole 5 to realize the counterweight adjustment of the circumferential angle.

[0056] They can be installed simultaneously, and by changing the quantity, weight or circumferential position, the balance adjustment accuracy can be further refined to compensate for the unbalanced torque on the right side of the shaft assembly;

[0057] Slide 9: Distributed in a ring array on the surface of the fixed disk 4, it provides a radial sliding track for the third counterweight 10, allowing it to move on the fixed disk 4 to adjust the centrifugal arm;

[0058] First bolt holes 5: distributed at both ends of the wire drawing machine shaft assembly 1, on the surface of the first counterweight 6 and the second counterweight 7, and fixed to the wire drawing machine shaft assembly 1 by the first limiting bolts 8; at the same time, used to connect and fix the fixing plate 4 to the wire drawing machine shaft assembly 1.

[0059] The circular array distribution facilitates the circumferential angle adjustment of the fixed disk 4, the first counterweight 6, and the second counterweight 7.

[0060] The second bolt hole 11 is distributed on the surface of the fixed plate 4 and the third counterweight 10. The third counterweight 10 is fixed on the fixed plate 4 by the third limiting bolt 14.

[0061] Position adjustment: The circular array distribution, together with the slide groove 9, allows the third counterweight 10 to be installed in different positions on the fixed plate 4 to achieve counterweight adjustment;

[0062] Limiting groove 12 and limiting block 13: The limiting block 13 is fixed to the bottom of the third counterweight 10 and engages with the limiting groove 12 in the sliding groove 9 of the fixed plate 4 to ensure that the third counterweight 10 does not deviate when sliding and is stable after being fixed.

[0063] First positioning groove 2 and second positioning groove 3: The first positioning groove 2 is on the right side of the wire drawing machine shaft assembly 1 and is used for the axial positioning of the first counterweight 6 and the second counterweight 7; the second positioning groove 3 is on the left side and is used for the axial positioning of the fixing plate 4 to ensure the coaxiality of the installation of each component.

[0064] First limiting bolt 8, second limiting bolt 15 and third limiting bolt 14: First limiting bolt 8 is used to fix the first counterweight 6 and the second counterweight 7; second limiting bolt 15 is used to fix the fixed plate 4; third limiting bolt 14 is used to fix the third counterweight 10 to ensure that each component does not loosen when rotating at high speed.

[0065] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A counterweight structure for a wire drawing machine shaft assembly, characterized in that: Includes a wire drawing machine shaft assembly (1), which is a hollow tube; The counterweight assembly is set on the wire drawing machine shaft assembly (1). The counterweight assembly includes a fixed plate (4). The fixed plate (4) is set on the left side of the wire drawing machine shaft assembly (1). The surface of the fixed plate (4) is provided with a sliding groove (9). The surface of the fixed plate (4) is provided with multiple second bolt holes (11). The sliding groove (9) is slidably connected to a third counterweight block (10). The surface of the fixed plate (4) is provided with multiple limiting grooves (12). The surface of the third counterweight block (10) is fixedly connected with two limiting blocks (13). The two limiting blocks (13) are engaged with the corresponding limiting grooves (12). The surface of the third counterweight (10) has two second bolt holes (11). The internal threads of the second bolt holes (11) on the surface of the fixed plate (4) and the third counterweight (10) are connected to the third limiting bolt (14). The fixed plate (4) and the third counterweight (10) are fixed together by the third limiting bolt (14).

2. The counterweight structure for a wire drawing machine shaft assembly according to claim 1, characterized in that: The number of the slide groove (9), the second bolt hole (11), and the limiting groove (12) are all in multiple sets arranged in a ring array on the surface of the wire drawing machine shaft assembly (1).

3. The counterweight structure for a wire drawing machine shaft assembly according to claim 1, characterized in that: The wire drawing machine shaft assembly (1) has an annular second positioning groove (3) on its left side, and multiple first bolt holes (5) are opened at the left end of the wire drawing machine shaft assembly (1). The surface of the fixed plate (4) also has multiple first bolt holes (5). The first bolt hole (5) on the surface of the wire drawing machine shaft assembly (1) and the fixed plate (4) is internally threaded with a second limiting bolt (15). The wire drawing machine shaft assembly (1) and the fixed plate (4) are fixed together by the second limiting bolt (15), and the fixed plate (4) is engaged with the second positioning groove (3).

4. The counterweight structure for a wire drawing machine shaft assembly according to claim 1, characterized in that: The wire drawing machine shaft assembly (1) has an annular first positioning groove (2) on the right side, and the wire drawing machine shaft assembly (1) also has multiple first bolt holes (5) on the right side. A first counterweight (6) is provided on the right side of the wire drawing machine shaft assembly (1), and a second counterweight (7) is provided on the right side of the wire drawing machine shaft assembly (1). Both the first counterweight (6) and the second counterweight (7) are slidably connected to the first positioning groove (2).

5. The counterweight structure for a wire drawing machine shaft assembly according to claim 4, characterized in that: The surface of the first counterweight (6) is also provided with a first bolt hole (5); The first bolt hole (5) on the right side of the wire drawing machine shaft assembly (1) and the first bolt hole (5) on the surface of the first counterweight (6) are connected by a first limiting bolt (8) through internal threads. The wire drawing machine shaft assembly (1) and the first counterweight (6) are fixed together by the first limiting bolt (8).

6. The counterweight structure for a wire drawing machine shaft assembly according to claim 4, characterized in that: The surface of the second counterweight (7) is also provided with the first bolt hole (5); The first bolt hole (5) on the right side of the wire drawing machine shaft assembly (1) and the first bolt hole (5) on the surface of the second counterweight (7) are connected by a first limiting bolt (8). The wire drawing machine shaft assembly (1) and the second counterweight (7) are fixed together by the first limiting bolt (8).

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