Adjustable bidirectional guide block structure of counterweight wheel

By incorporating guide blocks and ball bearings, along with a dual-positioning locking structure and a lubrication system, the wear problem of the counterweight wheel is solved, thereby improving the stability and service life of the equipment.

CN224245351UActive Publication Date: 2026-05-15KUNSHAN JINGHUICHUANG PRECISION MACHINERY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
KUNSHAN JINGHUICHUANG PRECISION MACHINERY CO LTD
Filing Date
2025-06-27
Publication Date
2026-05-15

AI Technical Summary

Technical Problem

During adjustment, the lack of a guide block structure causes friction between the inner wall of the center hole and the outer wall of the shaft, resulting in wear and affecting stability after prolonged use.

Method used

The adjustable counterweight wheel adopts a two-way guide block structure, including a guide assembly and a locking assembly. The guide block and ball structure reduce wear, and the counterweight wheel is fixed to the shaft by a double positioning and locking structure of positioning bolts and locking bolts. The oil reservoir and oil guide groove are combined for lubrication to reduce friction.

Benefits of technology

This design enables the counterweight wheel to move smoothly on the axle, reducing wear and improving stability. Furthermore, the lubrication structure further reduces friction, ensuring the long-term stable operation of the equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of balance weight wheels, and discloses an adjustable balance weight wheel bidirectional guide block structure which comprises a balance weight wheel, a shaft rod and a guide assembly, a center hole is formed in the center of the balance weight wheel, the shaft rod penetrates through the center hole, locking assemblies are arranged on the front side and the rear side of the balance weight wheel, the locking assemblies are movably connected with the shaft rod, and the shaft rod penetrates through the guide assembly. Through the structures such as the guide blocks and the balls, the balance weight wheel can stably move along the shaft rod, abrasion between the balance weight wheel and the shaft rod is reduced, the influence on the stability of the balance weight wheel is avoided, the balance weight wheel is fixed to the shaft rod through the double positioning and locking structures, the balance weight wheel is prevented from deviating and shaking relative to the shaft rod, and the service life of the balance weight wheel is prolonged. And the stability of the counterweight wheel during movement can be improved, lubricating oil can be stored and conveyed to the concave hole, so that structures such as the ball and the guide block can be lubricated, the friction between the counterweight wheel and the shaft rod is reduced, and the abrasion is further reduced.
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Description

Technical Field

[0001] This utility model belongs to the field of counterweight wheel technology, specifically an adjustable counterweight wheel bidirectional guide block structure. Background Technology

[0002] A counterweight wheel is a mechanical component used to balance or increase the stability of equipment, change the moment of inertia of the equipment, etc. The counterweight wheel is mainly based on the principles of balance and moment of inertia in physics. By adding counterweights in a reasonable way, the center of gravity of the equipment is adjusted to achieve a balanced state, reducing vibration and sway. In equipment involving rotational motion, the counterweight wheel can also increase the moment of inertia, making the rotation more stable and reducing the fluctuation of the rotation speed.

[0003] Counterweight wheels are generally mounted on shafts. Some counterweight wheels have their position on the shaft adjusted according to the equipment. Generally, the position adjustment of the counterweight wheel is to slide it directly on the shaft and then lock it in place. However, the counterweight wheel lacks a corresponding guide block structure, which causes the inner wall of the center hole to rub against the outer wall of the shaft. After long-term use, this can easily cause wear on the inner wall of the center hole and the outer wall of the shaft, affecting the stability of the counterweight wheel.

[0004] Therefore, an adjustable counterweight wheel bidirectional guide block structure is proposed to address the above problems. Utility Model Content

[0005] To address the problems mentioned in the background art, this utility model provides an adjustable counterweight wheel bidirectional guide block structure, which has the advantage of reducing wear during counterweight wheel adjustment.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an adjustable counterweight wheel bidirectional guide block structure, including a counterweight wheel, a shaft, and a guide assembly. A central hole is provided at the center of the counterweight wheel, through which the shaft passes. Locking assemblies are provided on the front and rear sides of the counterweight wheel, and the shaft is movably connected to the locking assemblies. A convex ring is formed by protruding from the edge of the central hole towards both sides of the counterweight wheel. A positioning bolt is provided on the convex ring, and the bottom of the positioning bolt abuts against the outer wall of the shaft.

[0007] The guiding assembly includes a guide groove formed on the outer wall of the shaft, a guide block matching the guide groove is provided on the inner wall of the center hole of the counterweight wheel, a concave hole is provided on the inner wall of the guide block, a ball is provided in the concave hole, and a limit groove is provided on the inner wall of the guide groove at the position corresponding to the ball.

[0008] The locking assembly includes positioning rings on both sides of the counterweight wheel, the positioning rings are sleeved on the shaft, and locking bolts are provided on the positioning rings, with the ends of the locking bolts abutting against the outer wall of the shaft.

[0009] Preferably, ventilation holes are provided on the outer side of the central hole, and the ventilation holes are circumferentially distributed on the counterweight wheel.

[0010] Preferably, a positioning screw hole is provided on the convex ring at a position corresponding to the positioning bolt, and the positioning screw hole is threadedly connected to the positioning bolt.

[0011] Preferably, an oil storage groove is provided inside the convex ring, the oil storage groove is connected to an oil guide groove, the oil guide groove is connected to a concave hole, and an oil filling port is provided on the side of the oil storage groove away from the oil guide groove, and the oil filling port is connected to a sealing bolt.

[0012] Preferably, the shaft is provided with anti-slip surfaces at positions corresponding to the positioning bolts and locking bolts, and the ends of the positioning bolts and locking bolts abut against the anti-slip surfaces.

[0013] Preferably, a locking screw hole is provided on the positioning ring sleeve at the position corresponding to the locking bolt, and the locking screw hole is threadedly connected to the locking bolt.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] 1. This utility model, by setting a guide component, through the structure of guide blocks and balls, enables the counterweight wheel to move smoothly along the shaft, reduces wear between the counterweight wheel and the shaft, and avoids affecting the stability of the counterweight wheel;

[0016] 2. This utility model uses positioning bolts and locking bolts to fix the counterweight wheel to the axle through a double positioning and locking structure, which prevents the counterweight wheel from shifting or wobbling relative to the axle, thus improving the stability of the counterweight wheel during movement.

[0017] 3. By setting up structures such as oil storage tanks and oil guide tanks, this utility model can store lubricating oil and deliver it to the concave hole position, thereby lubricating structures such as ball bearings and guide blocks, reducing friction between the counterweight wheel and the shaft, and further reducing wear. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the shaft of this utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the counterweight wheel of this utility model;

[0021] Figure 4 This is a schematic diagram of the locking assembly of this utility model;

[0022] Figure 5 This is a cross-sectional structural diagram showing the location of the oil storage tank in this utility model.

[0023] In the diagram: 1. Counterweight wheel; 2. Axle;

[0024] 3. Guide assembly; 301. Guide groove; 302. Guide block; 303. Recessed hole; 304. Ball bearing; 305. Limiting groove;

[0025] 4. Center hole;

[0026] 5. Locking assembly; 501. Positioning ring sleeve; 502. Locking bolt; 503. Locking screw hole;

[0027] 6. Raised ring; 7. Positioning bolt; 8. Ventilation hole; 9. Positioning screw hole; 10. Oil reservoir; 11. Oil guide groove; 12. Oil inlet; 13. Sealing bolt; 14. Anti-slip surface. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] like Figures 1 to 5 As shown, this utility model provides an adjustable counterweight wheel bidirectional guide block structure, including a counterweight wheel 1, a shaft 2 and a guide assembly 3. A central hole 4 is provided at the center of the counterweight wheel 1, and the shaft 2 passes through the central hole 4. Locking assemblies 5 are provided on the front and rear sides of the counterweight wheel 1. The shaft 2 is movably connected to the locking assembly 5. The edge of the central hole 4 protrudes to both sides of the counterweight wheel 1 to form a convex ring 6. A positioning bolt 7 is provided on the convex ring 6, and the bottom of the positioning bolt 7 abuts against the outer wall of the shaft 2.

[0030] The guide assembly 3 includes a guide groove 301 formed on the outer wall of the shaft 2. A guide block 302 matching the guide groove 301 is provided on the inner wall of the center hole 4 of the counterweight wheel 1. A concave hole 303 is provided on the inner wall of the guide block 302. A ball 304 is provided in the concave hole 303. A limit groove 305 is formed on the inner wall of the guide groove 301 at a position corresponding to the ball 304. Through the structure of the guide block 302 and the ball 304, the counterweight wheel 1 can move smoothly along the shaft 2, and reduce the wear between the counterweight wheel 1 and the shaft 2, so as to avoid affecting the stability of the counterweight wheel 1.

[0031] The locking assembly 5 includes positioning rings 501 on both sides of the counterweight wheel 1. The positioning rings 501 are sleeved on the shaft 2. The positioning rings 501 are provided with locking bolts 502. The ends of the locking bolts 502 abut against the outer wall of the shaft 2. By setting the positioning bolts 7 and the locking bolts 502, the counterweight wheel 1 is fixed to the shaft 2 through the double positioning and locking structure, which prevents the counterweight wheel 1 from shifting or shaking relative to the shaft 2, and helps to improve the stability of the counterweight wheel 1 during movement.

[0032] Specifically, ventilation holes 8 are provided on the outer side of the central hole 4, and the ventilation holes 8 are distributed circumferentially on the counterweight wheel 1.

[0033] Furthermore, a positioning screw hole 9 is provided on the convex ring 6 at the position corresponding to the positioning bolt 7, and the positioning screw hole 9 is threadedly connected to the positioning bolt 7.

[0034] Furthermore, an oil reservoir 10 is provided inside the convex ring 6, and the oil reservoir 10 is connected to an oil guide groove 11. The oil guide groove 11 is connected to a concave hole 303. An oil filling port 12 is provided on the side of the oil reservoir 10 away from the oil guide groove 11. The oil filling port 12 is connected to a sealing bolt 13. By setting up structures such as the oil reservoir 10 and the oil guide groove 11, lubricating oil can be stored and transported to the concave hole 303, so as to lubricate the ball 304, guide block 302 and other structures, thereby reducing the friction between the counterweight wheel 1 and the shaft 2 and further reducing wear.

[0035] It is worth noting that an anti-slip surface 14 is provided on the shaft 2 at the position corresponding to the positioning bolt 7 and the locking bolt 502. The ends of the positioning bolt 7 and the locking bolt 502 are both abutted against the anti-slip surface 14. The anti-slip surface 14 is a rough surface to increase the friction with the positioning bolt 7 and the locking bolt 502 and prevent the counterweight wheel 1 from sliding on the shaft 2.

[0036] It is worth noting that a locking screw hole 503 is provided on the positioning ring sleeve 501 at the position corresponding to the locking bolt 502, and the locking screw hole 503 is threadedly connected to the locking bolt 502.

[0037] Working principle and process: Through the guide block 302 and the ball bearing 304, the counterweight wheel 1 can move smoothly along the shaft 2, reducing wear between the counterweight wheel 1 and the shaft 2 and avoiding affecting the stability of the counterweight wheel 1. The double positioning and locking structure of the positioning bolt 7 and the locking bolt 502 fixes the counterweight wheel 1 to the shaft 2, preventing the counterweight wheel 1 from shifting or shaking relative to the shaft 2, which helps to improve the stability of the counterweight wheel 1 during movement. By setting the oil reservoir 10, the oil guide groove 11, etc., lubricating oil can be stored and delivered to the concave hole 303 position, which can lubricate the ball bearing 304, the guide block 302, etc., to reduce the friction between the counterweight wheel 1 and the shaft 2, and further reduce wear.

[0038] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An adjustable counterweight wheel bidirectional guide block structure, comprising a counterweight wheel (1), a shaft (2), and a guide assembly (3), characterized in that: The counterweight wheel (1) has a central hole (4) at its center position. The shaft (2) passes through the central hole (4). Locking components (5) are provided on the front and rear sides of the counterweight wheel (1). The shaft (2) is movably connected to the locking components (5). The edge of the central hole (4) protrudes to both sides of the counterweight wheel (1) to form a convex ring (6). A positioning bolt (7) is provided on the convex ring (6). The bottom of the positioning bolt (7) abuts against the outer wall of the shaft (2). The guide assembly (3) includes a guide groove (301) formed on the outer wall of the shaft (2), and a guide block (302) matching the guide groove (301) is provided on the inner wall of the center hole (4) of the counterweight wheel (1). A concave hole (303) is provided on the inner wall of the guide block (302), and a ball (304) is provided in the concave hole (303). A limit groove (305) is formed on the inner wall of the guide groove (301) at a position corresponding to the ball (304). The locking assembly (5) includes positioning rings (501) on both sides of the counterweight wheel (1), the positioning rings (501) are sleeved on the shaft (2), and the positioning rings (501) are provided with locking bolts (502), the ends of the locking bolts (502) abutting against the outer wall of the shaft (2).

2. The adjustable counterweight wheel bidirectional guide block structure according to claim 1, characterized in that: Ventilation holes (8) are provided on the outer side of the central hole (4), and the ventilation holes (8) are distributed circumferentially on the counterweight wheel (1).

3. The adjustable counterweight wheel bidirectional guide block structure according to claim 1, characterized in that: The convex ring (6) has a positioning screw hole (9) at the position corresponding to the positioning bolt (7), and the positioning screw hole (9) is threadedly connected to the positioning bolt (7).

4. The adjustable counterweight wheel bidirectional guide block structure according to claim 1, characterized in that: An oil storage groove (10) is provided inside the convex ring (6). The oil storage groove (10) is connected to an oil guide groove (11). The oil guide groove (11) is connected to a concave hole (303). An oil filling port (12) is provided on the side of the oil storage groove (10) away from the oil guide groove (11). The oil filling port (12) is connected to a sealing bolt (13).

5. The adjustable counterweight wheel bidirectional guide block structure according to claim 1, characterized in that: The shaft (2) is provided with an anti-slip surface (14) at the position corresponding to the positioning bolt (7) and the locking bolt (502), and the ends of the positioning bolt (7) and the locking bolt (502) abut against the anti-slip surface (14).

6. The adjustable counterweight wheel bidirectional guide block structure according to claim 1, characterized in that: The positioning ring (501) has a locking screw hole (503) at the position corresponding to the locking bolt (502), and the locking screw hole (503) is threadedly connected to the locking bolt (502).