Shaft sleeve inner hole protection tool for chromium plating of outer circle of shaft sleeve
By installing a sealing plate at the upper and lower ends of the shaft kit and sealing with a wire screw and a head nut, the problem of internal hole corrosion in the chrome plating process of the shaft sleeve is solved, and the protection of the inner hole of the shaft sleeve is achieved, ensuring the cooperation of the product Normality.
Patent Information
- Application Number
- CN202420874607.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-25
- Publication Date
- 2024-12-10
- Estimated Expiration
- 2034-04-25
AI Technical Summary
During the chrome plating process of the shaft sleeve, the inner hole of the shaft sleeve is exposed to the electrolyte, resulting in the size of the inner hole being corroded, affecting the normal coordination of the product.
A protective tool for inner holes for chrome plating of shaft sleeves is designed. By installing a sealing plate at the upper and lower ends of the shaft sleeve, and sealing with a wire screw and a sealing nut to prevent the electrolyte from contacting the inner hole. .
Effectively prevent the electrolyte from corroding the inner hole of the shaft sleeve, ensuring that the inner hole size is not damaged, and ensuring the normal cooperation of the product.
Smart Images
Figure CN222139321U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of shaft sleeve chrome plating, in particular to a shaft sleeve inner hole protection tooling for shaft sleeve outer circle chrome plating. Background Art
[0002] Chromium plating of sleeves refers to a technical means of plating a chrome layer on the surface of sleeve components. In order to improve the smoothness, corrosion resistance and wear resistance of the outer surface of the sleeve, the sleeve will be installed on a chrome-plated hanger during the sleeve processing process, and then the sleeve will be placed in the electrolyte for chrome plating on the outer surface of the sleeve.
[0003] When the above-mentioned method is used to chrome-plate the sleeve, since the entire sleeve is completely immersed in the electrolyte for chrome-plating, the inner hole of the sleeve is completely exposed to the electrolyte while the outer surface of the sleeve is chrome-plated. During the chrome-plating process, the electrolyte will corrode the already finely machined inner hole of the sleeve, causing the inner hole size to be destroyed, thus affecting the normal fit of the product. Utility Model Content
[0004] The utility model aims to solve the problem in the prior art that when the outer surface of the sleeve is chrome-plated, the inner hole of the sleeve is completely exposed to the electrolyte. During the chrome-plating process, the electrolyte will corrode the inner hole of the sleeve that has been finely processed, resulting in the destruction of the inner hole size and affecting the normal matching of the product. A sleeve inner hole protective tooling for chrome-plating the outer circle of the sleeve is proposed.
[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a shaft sleeve inner hole protective tooling for chrome-plating the outer circle of the shaft sleeve, including a shaft sleeve set, the upper and lower ends of the shaft sleeve are provided with sealing plates, the sealing plate is divided into an outer edge portion and an inner embedded portion, and the outer edge portion and the inner embedded portion of the sealing plate are integrally formed, the diameter of the inner embedded portion of the sealing plate is adapted to the inner diameter size of the shaft sleeve, the outer edge portion and the inner embedded portion of the sealing plate are provided with the same screw hole, the internal threads of the screw holes of the two sealing plates are threadedly inserted with through screws, the upper and lower ends of the through screws are threadedly connected with head nut parts, and the head nut parts are abutted against the sealing plates.
[0006] The effect achieved by the above components is: before the shaft kit is chrome-plated, the two sealing plates can be directly installed on the upper and lower ends of the shaft kit respectively with the help of the threads on the through-thread screw to seal the inner hole of the shaft kit, and then the sealing plates can be further squeezed and fixed with the head nut. Then the shaft kit can be directly hung on the hanger and placed in the electrolyte for chrome plating. At this time, the inner hole of the shaft kit is blocked, thereby effectively avoiding direct contact between the electrolyte and the inner hole of the shaft kit.
[0007] Preferably, a thread groove is provided inside the head nut member, and the head nut member is threadedly connected to the through-thread screw by means of the thread groove, and the thread groove does not penetrate the head nut member.
[0008] The effect achieved by the above components is: after the two sealing plates are installed at the upper and lower ends of the shaft kit to seal the inner hole of the shaft kit, while the sealing plates are further fixed by the head nut, the two ends of the exposed through-thread screw can be covered to prevent the electrolyte from damaging the threads on the through-thread screw when the shaft kit is placed in the electrolyte for chrome plating.
[0009] Preferably, a hexagonal nut is welded to the uppermost end of the sealing plate above the shaft sleeve, and a thread is formed inside the hexagonal nut.
[0010] The effect achieved by the above components is: after the sealing plate is used to seal the inner hole of the shaft set, the hexagonal nut can be directly connected to the suspension rod, and then the suspension rod can be used to transport the shaft set to the electrolytic cell for chrome plating.
[0011] Preferably, a circular groove is provided on the outer edge of the sealing plate near the shaft sleeve, a second O-ring is sleeved in the circular groove, and a retaining groove is provided on the side of the head nut member near the sealing plate, a first O-ring is sleeved inside the retaining groove of the head nut member.
[0012] The effects achieved by the above components are: firstly, the second O-ring can be used to improve the sealing strength between the sealing plate and the shaft assembly, and the first O-ring can improve the sealing strength between the head nut and the sealing plate.
[0013] In summary, the beneficial effects of the utility model are:
[0014] In the utility model, by setting a sealing plate, the effect of quickly sealing the inner hole of the shaft kit is achieved. When the shaft kit is placed in the electrolyte for chrome plating, the sealing plate seals the inner hole of the shaft kit to effectively avoid contact between the inner hole of the shaft kit and the electrolyte, thereby preventing the electrolyte from damaging the already finely machined inner hole of the shaft kit. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;
[0016] Figure 2 For this utility model Figure 1 Schematic diagram of the internal structure;
[0017] Figure 3 For this utility model Figure 2 A partial structural cross-sectional view of
[0018] Figure 4 For this utility model Figure 1Schematic diagram of structural disassembly;
[0019] Figure 5 It is a structural schematic diagram of the sealing plate of the utility model.
[0020] Legend: 1. Shaft kit; 2. Closing plate; 3. Screw hole; 4. Through-thread screw; 5. Head nut; 6. Hexagonal nut; 7. Round groove; 8. Clamping groove; 9. First O-ring; 10. Second O-ring. DETAILED DESCRIPTION
[0021] Reference Figure 1 As shown, the utility model provides a technical solution: a shaft sleeve inner hole protective tooling for chrome plating of the outer circle of the shaft sleeve, comprising a shaft sleeve set 1, the upper and lower ends of the shaft sleeve set 1 are provided with sealing plates 2, the sealing plate 2 is divided into an outer edge portion and an inner embedded portion, and the outer edge portion and the inner embedded portion of the sealing plate 2 are integrally formed, and the diameter of the inner embedded portion of the sealing plate 2 is adapted to the inner diameter size of the shaft sleeve set 1.
[0022] The following is a detailed description of the specific settings and functions of the entire structure.
[0023] Reference Figures 2 to 5As shown, in this embodiment: the outer edge and the embedded part of the sealing plate 2 are provided with the same screw hole 3, and the screw holes 3 of the two sealing plates 2 are internally threaded with through-thread screws 4, and the upper and lower ends of the through-thread screws 4 are both threadedly connected with head nut parts 5, and the head nut parts 5 are in contact with the sealing plates 2. Before the shaft set 1 is chrome-plated, the two sealing plates 2 can be directly installed on the upper and lower ends of the shaft set 1 by means of the threads on the through-thread screws 4, and the inner hole of the shaft set 1 is blocked, and then the sealing plates 2 are further squeezed and fixed by the head nut parts 5, and then the shaft set 1 can be directly hung on the hanging rod, and the shaft set 1 is placed in the electrolyte for chrome plating. At this time, the inner hole of the shaft set 1 is blocked, thereby effectively avoiding the direct contact between the electrolyte and the inner hole of the shaft set 1. A thread groove is provided inside the head nut part 5, and the head nut part 5 is threadedly connected to the through-thread screw 4 by means of the thread groove, and the thread groove does not penetrate the head nut part 5. After installing two sealing plates 2 at the upper and lower ends of the shaft set 1 to seal the inner hole of the shaft set 1, the sealing plates 2 can be further fixed with the head nut 5, and the two ends of the exposed through-thread screw 4 can be covered to prevent the electrolyte from damaging the threads on the through-thread screw 4 when the shaft set 1 is placed in the electrolyte for chrome plating. A hexagonal nut 6 is welded to the uppermost end of the sealing plate 2 above the shaft set 1, and a thread is provided inside the hexagonal nut 6. After the sealing plate 2 seals the inner hole of the shaft set 1, the hexagonal nut 6 can be directly connected to the suspension rod, and then the suspension rod is used to transport the shaft set 1 to the electrolytic cell for chrome plating. A circular groove 7 is provided on the outer edge of the sealing plate 2 near the shaft sleeve 1, and a second O-ring 10 is sleeved in the circular groove 7. A retaining groove 8 is provided on the side of the head nut member 5 near the sealing plate 2, and a first O-ring 9 is sleeved in the retaining groove 8 of the head nut member 5. First, the second O-ring 10 can be used to improve the sealing strength between the sealing plate 2 and the shaft sleeve 1, and the first O-ring 9 can improve the sealing strength between the head nut member 5 and the sealing plate 2.
[0024] Working principle:
[0025] First, when the shaft set 1 needs to be chrome-plated, first insert the threaded screw 4 into the shaft set 1, and then put the two sealing plates 2 on the upper and lower ends of the threaded screw 4 respectively, and then rotate the sealing plate 2 so that the embedded part of the sealing plate 2 is screwed into the port position of the shaft set 1 with the help of the screw hole 3. At this time, the second O-ring 10 on the outer edge of the sealing plate 2 will be squeezed with the shaft set 1, and the second O-ring 10 has the effect of improving the sealing between the sealing plate 2 and the shaft set 1. After the position of the sealing plate 2 is fixed, the head nut 5 is screwed on the threaded screw 4 with the help of the thread groove, and the sealing plate 2 is further squeezed with the help of the head nut 5. Fixation, by setting the head nut part 5, two effects are achieved. One is that the sealing plate 2 can be further squeezed and fixed, and the other is that the exposed part of the through-thread screw 4 can be covered to avoid the electrolyte and the through-thread screw 4 from contacting and damaging the threads on the through-thread screw 4 when the shaft kit 1 is chrome-plated. The first O-ring 9 has the effect of improving the sealing between the head nut part 5 and the sealing plate 2. After the two sealing plates 2 are fixed, the hexagonal nut part 6 can be directly connected to the hanger of the electrolysis equipment, and then the shaft kit 1 can be placed in the electrolytic cell for chrome-plating.
[0026] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.
Claims
1. A shaft sleeve inner hole protection tool for chrome plating of the outer circle of the shaft sleeve, comprising a shaft set (1), characterized in that: The shaft sleeve (1) is provided with a sealing plate (2) at both upper and lower ends. The sealing plate (2) is divided into an outer edge portion and an inner embedded portion, and the outer edge portion and the inner embedded portion of the sealing plate (2) are integrally formed. The diameter of the inner embedded portion of the sealing plate (2) is matched with the inner diameter size of the shaft sleeve (1). The outer edge portion and the inner embedded portion of the sealing plate (2) are provided with a same screw hole (3). The screw holes (3) of the two sealing plates (2) are internally threaded with through-thread screws (4). The upper and lower ends of the through-thread screws (4) are threadedly connected with head nut members (5), and the head nut member (5) is in contact with the sealing plate (2).
2. The shaft sleeve inner hole protection tooling for shaft sleeve outer circle chrome plating according to claim 1, characterized in that: A thread groove is provided inside the head nut member (5), and the head nut member (5) is threadedly connected to the through-thread screw (4) by means of the thread groove, and the thread groove does not penetrate through the head nut member (5).
3. The shaft sleeve inner hole protection tooling for shaft sleeve outer circle chrome plating according to claim 1, characterized in that: A hexagonal nut (6) is welded to the uppermost end of the sealing plate (2) located above the shaft sleeve (1), and a thread is provided inside the hexagonal nut (6).
4. The shaft sleeve inner hole protection tooling for shaft sleeve outer circle chrome plating according to claim 1, characterized in that: A circular groove (7) is provided on the outer edge of the sealing plate (2) near the shaft sleeve (1), and a second O-ring (10) is sleeved in the circular groove (7); a retaining groove (8) is provided on the outer edge of the sealing plate (2) near the shaft sleeve (1), and a first O-ring (9) is sleeved in the retaining groove (8) of the sealing plate nut (5).