Dynamic balance weight removing structure
By opening a balance hole on the balance ring to adjust the material weight, the problem of excessive imbalance of the dynamic balance residual imbalance between the transmission shaft between the bridge is solved, and efficient dynamic balance adjustment and qualification rate improvement are achieved.
Patent Information
- Application Number
- CN202422460960.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-11
- Publication Date
- 2025-07-01
- Estimated Expiration
- 2034-10-11
AI Technical Summary
In the dynamic balance process, the existing interbridge transmission shaft has a short length and the inability to weld multiple balance sheets, resulting in excessive imbalance of dynamic balance and low product pass rate.
Balance holes are opened in the radial direction of the balance ring, and the weight of the material is removed by adjusting the aperture, depth and position to achieve rotational balance.
No need to weld the balance sheet, which improves the pass rate of dynamic balance, reduces scrap loss, is highly adjustable and has strong versatility.
Smart Images
Figure CN223049265U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of dynamic balance of transmission shafts, and particularly relates to a dynamic balance weight removal structure. Background Art
[0002] As Figure 1 、 2 、shown in Figure 3, during the dynamic balance process of the existing intermediate shaft transmission shaft (1'), after dynamic balance detection, the equipment will display the requirement to convex-weld balance weights (2') at a certain angle for weight compensation to reduce the remaining unbalance amount to within the qualified range. Since the transmission shaft is very short and the balance weights are not allowed to be stacked and welded, there is no space to axially convex-weld multiple balance weights, and only 1 piece can be convex-welded. However, 1 piece cannot compensate for all the remaining unbalance amount, resulting in a too large remaining unbalance amount in dynamic balance and a high unqualified rate of products. Summary of the Utility Model
[0003] The purpose of the utility model is to overcome the deficiencies existing in the prior art, and to provide a dynamic balance weight removal structure. By drilling holes at the angular position of the remaining unbalance amount on the balance ring, the material weight is removed to achieve rotational balance.
[0004] The purpose of the utility model is achieved by the following technical solutions: This dynamic balance weight removal structure includes an intermediate shaft transmission shaft and a balance ring sleeved on the intermediate shaft transmission shaft. The intermediate shaft transmission shaft includes a spline shaft fork. One end of the spline shaft fork is welded with a sealed sleeve after being in spline fit with a spline sleeve. The other end of the spline shaft fork is connected to a flange fork through a cross shaft; the spline sleeve is welded and fixed to a welding fork, and the welding fork is connected to another flange fork through a cross shaft; the balance ring is sleeved on the outer wall of the spline sleeve, and at least one balance hole is radially opened along the balance ring.
[0005] As a further technical solution, the number, aperture, depth, and position of the balance holes on the balance ring are adjusted according to the remaining unbalance amount of the intermediate shaft transmission shaft, so that the remaining unbalance amount in dynamic balance is within the qualified range.
[0006] The beneficial effects of the utility model are as follows:
[0007] 1. There is no need to weld balance weights for weight compensation, and the adjustment efficiency is higher;
[0008] 2. By adopting the weight removal structure, the remaining unbalance amount in dynamic balance can be effectively controlled within the qualified range, the qualified rate of dynamic balance is improved, and the scrap loss is reduced;
[0009] 3. For different remaining unbalance amounts, the weight of the removed material can be adjusted by controlling the size and depth of the drilled holes, so as to control the remaining unbalance amount within the qualified range, and the universality is stronger. Description of the Drawings
[0010] Figure 1 It is a schematic structural diagram of convex welding of balance pieces on the intermediate shaft drive shaft in the prior art.
[0011] Figure 2 It is a schematic structural diagram of a balance piece in the prior art.
[0012] Figure 3 It is Figure 2 A-A sectional view of
[0013] Figure 4 It is a schematic structural diagram of the present utility model.
[0014] Figure 5 It is a schematic structural diagram of a balance ring in the present utility model.
[0015] Figure 6 It is Figure 5 View from direction B of
[0016] Explanation of reference numerals: Intermediate shaft drive shaft 1', balance piece 2';
[0017] Flange fork 1, welding fork 2, spline sleeve 3, sealing sleeve 4, spline shaft fork 5, balance ring 6, balance hole 7. Detailed implementation manners
[0018] The following will introduce the present utility model in detail with reference to the drawings:
[0019] Embodiment: As shown in the attached Figures 4 to 6 figures, this dynamic balance weight removal structure includes a flange fork 1, a welding fork 2, a spline sleeve 3, a sealing sleeve 4, a spline shaft fork 5, a balance ring 6 and a balance hole 7.
[0020] Referring to the attached Figure 4 figures, the flange fork 1, the welding fork 2, the spline sleeve 3, the sealing sleeve 4 and the spline shaft fork 5 together form an intermediate shaft drive shaft. Among them, the front end (spline end) of the spline shaft fork 5 is in spline fit transmission with the spline sleeve 3, and at the same time, a sealing sleeve 4 is welded on the outer wall of the spline shaft fork 5 for sealing. The rear end (fork part) of the spline shaft fork 5 is connected and driven to a flange fork 1 through a cross shaft. The front end of the spline sleeve 3 is fixedly welded to the welding fork 2, and the welding fork 2 is connected and driven to another flange fork 1 through a cross shaft. The balance ring 6 is sleeved on the outer circle of the large end of the spline sleeve 3 and is close to the welding position, and at least one balance hole 7 is opened radially along the balance ring 6, as Figure 4 shown. The balance ring 6 adopts an annular structure, as Figure 5 , 6 shown.
[0021] Preferably, the number, aperture diameter, depth of the balance holes 7 and their positions on the balance ring 6 are adjusted according to the residual unbalance of the intermediate shaft between axles, so that the residual unbalance of dynamic balance is within the qualified range.
[0022] The working process of the present utility model: In the dynamic balance process, after the dynamic balance detection, if there is an unbalance at a certain angle on the 360° of the intermediate shaft between axles being tested, drilling is carried out at this angular position on the balance ring 6 to remove the material weight of the balance ring 6 to achieve rotational balance. Different residual unbalances can be adjusted by controlling the size and depth of the drilling to control the weight of the removed material, thereby controlling the residual unbalance.
[0023] It can be understood that for those skilled in the art, any equivalent replacement or change to the technical solution and inventive concept of the present utility model should fall within the protection scope of the appended claims of the present utility model.
Claims
1. A dynamic balancing weight removal structure, characterized in that: The invention comprises an inter-bridge transmission shaft and a balancing ring (6) sleeved on the inter-bridge transmission shaft, wherein the inter-bridge transmission shaft comprises a spline shaft fork (5), one end of the spline shaft fork (5) is welded to a sealing sleeve (4) after being spline-matched with a spline sleeve (3), and the other end of the spline shaft fork (5) is connected to a flange fork (1) via a cross shaft; the spline sleeve (3) is welded and fixed to a welding fork (2), and the welding fork (2) is connected to another flange fork (1) via a cross shaft; the balancing ring (6) is sleeved on the outer wall of the spline sleeve (3), and at least one balancing hole (7) is provided along the radial direction of the balancing ring (6).
2. The dynamic balancing weight removal structure according to claim 1, characterized in that: The number, diameter, depth and position of the balancing holes (7) on the balancing ring (6) are adjusted according to the residual unbalance of the inter-bridge transmission shaft so that the dynamic balancing residual unbalance is within a qualified range.