Shaft head electrophoresis protective sleeve

Abstract

The utility model relates to the technical field of axle protection, in particular to an electrophoresis protective sleeve for an axle head. According to the technical scheme, the shaft head comprises an electrophoresis protective sleeve, a sliding rod, a shaft head body and a bolt, the shaft head body is sleeved with the electrophoresis protective sleeve, a stroke hole is formed in one end of the electrophoresis protective sleeve, the bolt penetrating through the stroke hole is arranged in one end of the shaft head body, and the end, located on the outer side of the electrophoresis protective sleeve, of the bolt is rotationally sleeved with a nut; a first annular groove and a second annular groove are formed in the outer wall of the shaft head body, a first sealing ring is arranged in the first annular groove, a second sealing ring is arranged in the second annular groove, and a sealing cavity located between the first sealing ring and the second sealing ring is formed in the electrophoresis sheath. According to the utility model, the sealing structure is arranged in the electrophoresis sheath, so that the problem that the service life of a metal part is shortened due to rusting, corrosion or damage caused by the fact that an isolation effect cannot be achieved is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of axle protection, in particular to an axle head electrophoresis protective sleeve. Background Art

[0002] The axle of a semi-trailer usually includes an axle tube, a wheel hub and a bearing. There are axle heads, axle necks and bearings at both ends of the axle. The axle head is an important component connecting the axle and the suspension system. It plays the role of fixing the axle and the rotating wheel, allowing the wheel to rotate smoothly and bear the load when the vehicle is driving.

[0003] There is a sleeve on the outside of the shaft head, but there is no sealing structure between the inner wall of the sleeve and the shaft head. There is a gap between the sleeve and the product. When immersed in water or other liquids, the liquid will penetrate into the sleeve and it cannot play an isolating role, causing metal parts to rust, corrode or be damaged, reducing their service life. It cannot effectively protect the shaft head and other internal components from the influence of the external environment. For this reason, we propose a shaft head electrophoresis protective sleeve to solve the existing problems. Utility Model Content

[0004] The utility model aims to provide a shaft head electrophoresis protective sleeve in view of the problems existing in the background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a shaft head electrophoresis protective cover, comprising an electrophoresis cover, a sliding rod, a shaft head body and a bolt, the electrophoresis cover is sleeved on the outer side of the shaft head body, a travel hole is opened at one end of the electrophoresis cover, a bolt passing through the travel hole is arranged inside one end of the shaft head body, the bolt is located at one end of the outer side of the electrophoresis cover and is rotatably sleeved with a nut, an annular ring groove 1 and an annular ring groove 2 are opened on the outer wall of the shaft head body, a sealing ring 1 is arranged inside the annular groove 1, a sealing ring 2 is arranged inside the annular groove 2, and a sealing cavity located between the sealing ring 1 and the sealing ring 2 is arranged inside the electrophoresis cover.

[0006] Preferably, one end of the nut is provided with a sealing gasket which is sleeved on the outer wall of the bolt and fits the outer wall of the electrophoresis jacket. The sealing gasket performs sealing treatment on the sleeve joint between the nut and the bolt and the travel hole.

[0007] Preferably, a mounting groove is provided inside the shaft head body, and one end of the bolt is located inside the mounting groove. The bolt is effectively inserted into the shaft head body through the mounting groove, thereby facilitating the assembly and installation of the bolt.

[0008] Preferably, an annular ring groove 3 is provided inside one end of the shaft head body, and a sealing ring 3 is provided inside the ring groove 3. The sealing ring 3 inside the ring groove 3 improves the sealing performance of the fitting surface when the electrophoresis sheath is pressed against one end of the shaft head body.

[0009] Preferably, a threaded sleeve is sleeved on the outer side of one end of the electrophoresis sheath, and a threaded cap is rotatably sleeved on the outer wall of the threaded sleeve. The threaded cap is sleeved on the outer side of the threaded sleeve to shield one end of the bolt and further improve the sealing of the bolt installation location.

[0010] Preferably, a sliding sleeve is embedded and installed inside the electrophoresis sheath, and a sliding rod is slidably inserted inside the sliding sleeve. The spring slides inside the electrophoresis sheath through the sliding sleeve, and the slide is sealed by the sliding sleeve when sliding.

[0011] Preferably, the lower end of the slide rod is provided with a floating block located inside the sealed cavity, the outer wall of the electrophoresis sheath is provided with a sleeve ring sleeved on the outer side of the slide rod, and the sleeve is located inside the sleeve. The floating block limits the lower end of the slide rod to prevent the slide rod from detaching from the sleeve, and the sleeve is protected by the sleeve ring.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] 1. The utility model sleeves an electrophoresis sleeve on the outside of the shaft head body, arranges a sealing structure between the electrophoresis sleeve and the outer wall of the shaft head body, and fixes one end of the electrophoresis sleeve with bolts to obtain an effective seal at the connection between the electrophoresis sleeve and the shaft head, thereby preventing the infiltration of external liquids and substances, effectively isolating the shaft head from the outside world, and improving the service life of the shaft head body. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the main sectional three-dimensional structure of the utility model;

[0015] Figure 2 It is a side view stereoscopic structural schematic diagram of the utility model;

[0016] Figure 3 This is a schematic diagram of the main three-dimensional structure of the utility model;

[0017] Figure 4 This is a schematic diagram of the main cross-sectional three-dimensional structure of the shaft head body of the utility model;

[0018] Figure 5 It is a schematic diagram of a partial top view of the three-dimensional structure of the shaft head of the utility model;

[0019] Figure 6 It is a schematic diagram of the main cross-sectional three-dimensional structure of the threaded cover of the utility model.

[0020] Figure numerals: 1. threaded cover; 2. electrophoresis sleeve; 3. sliding rod; 4. shaft head body; 5. sealing ring one; 6. bolt; 7. sealing ring two; 8. ring groove one; 9. ring groove two; 10. sealing chamber; 11. collar; 12. sliding sleeve; 13. floating block; 14. sealing ring three; 15. ring groove three; 16. nut; 17. threaded sleeve; 18. travel hole; 19. sealing gasket; 20. assembly groove. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] like Figure 1-Figure 6 As shown, the utility model proposes a shaft head electrophoresis protective cover, including an electrophoresis cover 2, a slide rod 3, a shaft head body 4 and a bolt 6, characterized in that: the electrophoresis cover 2 is sleeved on the outer side of the shaft head body 4, a travel hole 18 is opened at one end of the electrophoresis cover 2, a bolt 6 penetrating the travel hole 18 is arranged inside one end of the shaft head body 4, a nut 16 is rotatably sleeved on the bolt 6 located at one end of the outer side of the electrophoresis cover 2, an annular ring groove 1 8 and a ring groove 2 9 are opened on the outer wall of the shaft head body 4, a sealing ring 1 5 is arranged inside the ring groove 1 8, and a sealing ring 2 7 is arranged inside the ring groove 2 9;

[0023] One end of the nut 16 is provided with a sealing gasket 19 which is sleeved on the outer wall of the bolt 6 and fits with the outer wall of the electrophoresis sheath 2;

[0024] A mounting groove 20 is provided inside the shaft head body 4, and one end of the bolt 6 is located inside the mounting groove 20;

[0025] An annular ring groove 3 15 is provided inside one end of the shaft head body 4, and a sealing ring 3 14 is provided inside the annular groove 3 15;

[0026] A threaded sleeve 17 is sleeved on the outer side of one end of the electrophoresis sheath 2, and a threaded cover 1 is rotatably sleeved on the outer wall of the threaded sleeve 17;

[0027] The implementation steps based on Example 1 are as follows: the sealing ring 1 5 is sleeved and installed inside the ring groove 1 8, the sealing ring 2 7 is sleeved and installed inside the ring groove 2 9, the sealing ring 3 14 is sleeved and installed inside the ring groove 3 15, the bolt 6 is inserted into the assembly groove 20, the electrophoresis sleeve 2 is sleeved on the outside of the shaft head body 4, the travel hole 18 is sleeved on the outer wall of the bolt 6, the outer wall of the bolt 6 is sleeved with the sealing gasket 19, the nut 16 is rotatably sleeved on the outer wall of the bolt 6, and the shaft head body 4 is squeezed through the thread engagement, and the electrophoresis sleeve 2 is sleeved on the sealing ring 1 5, the sealing ring 2 7 and the sealing ring 3 1 4 is extruded, and the threaded cover 1 is rotatably sleeved on the outer wall of the threaded sleeve 17, so that the sealing ring 1 5, the sealing ring 2 7 and the sealing ring 3 14 can seal the two ends of the electrophoresis sheath 2. Through the multi-pass sealing structure, liquid or other media are prevented from entering the inside of the electrophoresis sheath 2, and a gap is prevented between the electrophoresis sheath 2 and the shaft head body 4, which cannot play an isolating role and cause the metal parts to rust, corrode or be damaged, thereby reducing their service life, and cannot effectively protect the shaft head and other internal parts from the influence of the external environment. The shaft head body 4 is well protected.

[0028] like Figure 1-Figure 6 As shown, compared with the first embodiment, the electrophoresis protective sleeve for the shaft head proposed by the utility model further includes: a sealing cavity 10 located between the sealing ring 1 5 and the sealing ring 2 7 is provided inside the electrophoresis protective sleeve 2;

[0029] A sliding sleeve 12 is embedded and installed inside the electrophoresis sheath 2, and a sliding rod 3 is slidably inserted inside the sliding sleeve 12;

[0030] The lower end of the slide rod 3 is provided with a floating block 13 located inside the sealed cavity 10, the outer wall of the electrophoresis sheath 2 is provided with a sleeve ring 11 sleeved on the outer side of the slide rod 3, and the slide sleeve 12 is located inside the slide sleeve 12;

[0031] In this embodiment, when the sealing ring 1 5 is broken and leaks, the sealing ring 2 7 performs a second seal, and at the same time, liquid enters the sealing chamber 10, and the floating block 13 is supported by the liquid and pushed, and the sliding rod 3 moves to the outside through the sliding sleeve 12, warning the driver that the sealing ring 1 5 is damaged and needs to be replaced, thereby providing redundant protection and improving the protection effect of the shaft head body 4.

[0032] The above-mentioned specific embodiments are only several preferred embodiments of the present invention. Based on the technical solution of the present invention and the relevant inspiration of the above-mentioned embodiments, those skilled in the art can make various alternative improvements and combinations to the above-mentioned specific embodiments.

[0033] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A shaft head electrophoresis protective cover, comprising an electrophoresis protective cover (2), a slide rod (3), a shaft head body (4) and a bolt (6), characterized in that: The outer side of the shaft head body (4) is sleeved with an electrophoresis sleeve (2), one end of the electrophoresis sleeve (2) is provided with a travel hole (18), one end of the shaft head body (4) is provided with a bolt (6) penetrating the travel hole (18), the bolt (6) is located at one end of the outer side of the electrophoresis sleeve (2) and is rotatably sleeved with a nut (16), the outer wall of the shaft head body (4) is provided with an annular ring groove 1 (8) and an annular ring groove 2 (9), the annular groove 1 (8) is provided with a sealing ring 1 (5), the annular groove 2 (9) is provided with a sealing ring 2 (7), and the electrophoresis sleeve (2) is provided with a sealing cavity (10) located between the sealing ring 1 (5) and the sealing ring 2 (7).

2. The electrophoresis protective cover for the shaft head according to claim 1, characterized in that: One end of the nut (16) is provided with a sealing gasket (19) which is sleeved on the outer wall of the bolt (6) and fits with the outer wall of the electrophoresis sheath (2).

3. The electrophoresis protective cover for the shaft head according to claim 1, characterized in that: The shaft head body (4) is provided with a mounting groove (20) inside, and one end of the bolt (6) is located inside the mounting groove (20).

4. The electrophoresis protective cover for the shaft head according to claim 1, characterized in that: An annular ring groove (15) is provided inside one end of the shaft head body (4), and a sealing ring (14) is provided inside the annular groove (15).

5. The electrophoresis protective cover for the shaft head according to claim 1, characterized in that: A threaded sleeve (17) is sleeved on the outer side of one end of the electrophoresis sleeve (2), and a threaded cover (1) is rotatably sleeved on the outer wall of the threaded sleeve (17).

6. The electrophoresis protective cover for the shaft head according to claim 1, characterized in that: A sliding sleeve (12) is embedded and installed inside the electrophoresis sheath (2), and a sliding rod (3) is slidably inserted inside the sliding sleeve (12).

7. The electrophoresis protective cover for the shaft head according to claim 6, characterized in that: The lower end of the slide rod (3) is provided with a floating block (13) located inside the sealed cavity (10), the outer wall of the electrophoresis sheath (2) is provided with a ring (11) sleeved on the outside of the slide rod (3), and the slide sleeve (12) is located inside the slide sleeve (12).

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