Two-plate machine tiebar annular groove locking structure
By designing an annular groove structure on the tie rod to fit the brake nut, and using 42CrMo material and nitriding treatment, the problem of uneven stress on the tooth surface caused by traditional helical tooth connection is solved, thus achieving uniform stress and improved durability of the tie rod.
Patent Information
- Application Number
- CN202423129493.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-18
- Publication Date
- 2025-11-04
- Estimated Expiration
- 2034-12-18
AI Technical Summary
The helical tooth connection of the traditional two-plate machine gatepost locking structure makes it difficult to ensure that the fillet radius of each stress groove is consistent, resulting in uneven tooth surface thickness. After repeated stress, it is easy to break, causing uneven stress on the entire gatepost, which may lead to equipment loss and safety accidents.
The design adopts an annular groove structure. The annular grooves are evenly arranged on the guide column to match the brake nut. The annular groove includes annular teeth and grooves. The bottom of the groove is a semi-circular arc. The material is 42CrMo and nitrided, with a surface hardness of HV640-750, to ensure uniform stress distribution.
The annular groove structure of the guide column makes it less prone to breakage during long-term use, ensures uniform stress distribution, and avoids equipment damage and safety hazards.
Smart Images
Figure CN223511290U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a golin column locking structure technical field, concretely is a two-plate machine golin column annular groove locking structure. BACKGROUND
[0002] The traditional two-plate machine golin column locking structure is helical tooth connection, and it is difficult to ensure that the fillets of each stress groove are all consistent when the helical tooth is processed, and the tooth profile thickness of the helical tooth surface contact part is thinner than that of the annular groove, the tooth edge receives impact when repeatedly stressed, and the fatigue limit is exceeded after long work, which often causes the tooth surface part tooth profile to collapse, and even if the part tooth profile is damaged, it will cause uneven stress of the whole golin column and easily lead to equipment loss and even safety accidents.
[0003] Therefore, the utility model provides a two-plate machine golin column annular groove locking structure to solve the above-mentioned problems of the prior art. UTILITY MODEL CONTENT
[0004] The utility model discloses a two-plate machine golin column annular groove locking structure, and the golin column is uniformly provided with an annular groove, the annular groove is matched with the tooth profile in the brake band nut, the brake band nut and the golin column are correspondingly embraced, the annular groove comprises an annular tooth and an annular groove, the two teeth are between the grooves, the width of each tooth is same with the width of each groove, the error is not more than 0.02mm, the groove bottom section is a semicircle arc, and the depth of the groove is the diameter of the semicircle arc.
[0005] In order to achieve the above object, the utility model provides the following technical scheme:
[0006] A two-plate machine golin column annular groove locking structure, the golin column is uniformly provided with an annular groove, the annular groove is matched with the tooth profile in the brake band nut, the brake band nut and the golin column are correspondingly embraced, the annular groove comprises an annular tooth and an annular groove, the two teeth are between the grooves, the width of each tooth is same with the width of each groove, the error is not more than 0.02mm, the groove bottom section is a semicircle arc, and the depth of the groove is the diameter of the semicircle arc.
[0007] Further, the brake band nut tooth profile is divided into nut teeth and nut grooves, the width of the nut teeth is slightly smaller than the width of the annular groove, and the size of the nut groove is slightly larger than the width of the annular tooth.
[0008] Further, the golin column adopts 42CrMo material, and the surface is subjected to nitriding treatment, and the thickness of the nitriding layer is 0.30-0.50mm.
[0009] Compared with the prior art, the utility model has the beneficial effects that:
[0010] By designing the inclined tooth connection in the existing locking structure of the Corinthian column into the annular groove structure in the utility model, each annular groove under stress can be uniformly stressed, and is not prone to breaking after long-term use. BRIEF DESCRIPTION OF DRAWINGS
[0011] Figure 1 It is a schematic view of the Corinthian column of the utility model;
[0012] Figure 2 It is a sectional view of the utility model;
[0013] Figure 3 It is a schematic view of the overall structure of the utility model;
[0014] Figure 4 It is a schematic view of the size of the annular groove.
[0015] In the drawing: 1, Corinthian column; 2, annular tooth; 3, annular groove; 4, brake nut; 5, nut tooth; 6, nut groove. DETAILED DESCRIPTION
[0016] In the following description, a large number of specific details are given in order to provide a more thorough understanding of the utility model. However, it is obvious to those skilled in the art that the utility model can be implemented without one or more of these details. In other examples, in order to avoid obscuring the utility model, some technical features known in the art are not described.
[0017] The applicant designs a two-plate machine Corinthian column annular groove locking structure as shown in Figures 1-4 The utility model discloses a two-plate machine Corinthian column annular groove locking structure, which is characterized in that the Corinthian column (1) is uniformly provided with annular grooves (3), the annular grooves (3) are matched with the tooth shape in the brake nut (4), the brake nut (4) and the Corinthian column (1) are correspondingly held, the annular groove (3) comprises annular teeth (2) and annular grooves (3), the two teeth are grooves, the width of each tooth is the same as the width of each groove, the error is not more than 0.02mm, the groove bottom section is a semicircular arc, and the depth of the groove is the diameter of the semicircular arc.
[0018] Further, the tooth shape of the brake nut (4) is divided into nut teeth (5) and nut grooves (6) in the two-plate machine Corinthian column annular groove locking structure, the width of the nut teeth (5) is slightly smaller than the width of the annular groove (3), and the size of the nut groove (6) is slightly larger than the width of the annular tooth (2).
[0019] In this embodiment, the locking structure of the two-plate machine guide post annular groove is further optional. The guide post 1 is generally made of 42CrMo forging material, forged and annealed, then rough-machined and normalized. After completion, it is tempered to ensure that the surface hardness reaches the range of HB281-HB311. Then, the annular groove 3 is rough-machined and aged. After aging, the annular groove 3 is precision-machined and then nitrided. The nitriding layer thickness is required to be 0.30-0.50mm, and the surface hardness reaches the range of HV640-750. After nitriding, the surface is polished to complete the entire processing procedure. The guide post 1 with the annular groove 3 structure is subjected to uniform stress. After changing to this structure, no breakage occurred at the position of the annular groove 3 of the guide post 1 or the entire guide post 1 after testing.
[0020] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A locking structure for a two-plate machine guide post annular groove, characterized in that, The gatepost is uniformly provided with annular grooves, which are adapted to the tooth shape inside the brake nut so that the brake nut and the gatepost are correspondingly engaged. The annular groove includes annular teeth and annular grooves, with a groove between two teeth. The width of each tooth is the same as the width of each groove, with an error not exceeding 0.02mm. The bottom cross-section of the groove is a semi-circular arc, and the depth of the groove is the diameter of the semi-circular arc.
2. The locking structure for a two-plate machine guide post annular groove according to claim 1, characterized in that, The brake nut has two tooth profiles: a tooth and a groove. The width of the tooth is slightly smaller than the width of the groove, while the groove is slightly larger than the width of the tooth.
3. The locking structure for a two-plate machine guide post annular groove according to claim 1, characterized in that, The Golin column is made of 42CrMo material and the surface is nitrided with a nitriding layer thickness of 0.30-0.50mm.