High-strength hub nut

Abstract

The utility model discloses a high-strength hub nut, relates to hub technical field, the outer end of the mounting rod is in threaded connection with the nut, the connecting part of the nut and the mounting rod is in the shape of a circular truncated cone, and one end of the nut far away from the mounting rod is in the shape of a spherical structure. According to the high-strength hub nut, the detachable protection disc and the sleeve are adopted, rotation of the nut is effectively limited, looseness caused by vibration is prevented, and therefore the stability and safety of the whole hub structure are enhanced, the shear stress of the root of a thread is effectively reduced through the progressive pressing effect of the circular-truncated-cone-shaped connecting part, and the service life of the hub nut is prolonged. The strength of the nut is improved, the thread direction of the mounting rod is consistent with that of the nut, so that screwing of the nut can synchronously drive the mounting rod, a two-way self-locking mechanism is achieved, and the assembling reliability is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of wheel hub, concretely to a high strength wheel hub nut. BACKGROUND

[0002] The wheel hub nut is used for firmly fixing the wheel on the wheel hub, and ensures the stability and safety of the wheel during driving, since the wheel will bear a large load during driving, the wheel hub nut needs to have enough strength to ensure that the wheel will not loosen or fall off due to excessive load.

[0003] In order to overcome the above defects, the prior art (publication number: CN214465478U) discloses a high-strength wheel hub nut, which comprises a wheel hub nut body and a waterproof cap, the wheel hub nut body is fixedly connected with the waterproof cap, the bottom of the wheel hub nut body is provided with a connecting flange, the top of the wheel hub nut body is provided with a first fixing assembly, the side of the waterproof cap is provided with a second fixing assembly, and the first fixing assembly and the second fixing assembly are fixed by bolts.

[0004] Although the prior art can overcome the above-mentioned deficiencies, there are still other problems in its operation process: the traditional wheel hub nut adopts a standard hexagonal nut and bolt cooperation structure, when the vehicle drives on rough road, the wheel hub system bears high-frequency impact vibration, and the traditional nut is prone to progressive loosening due to lack of effective anti-loosening structure. UTILITARIAN CONTENT

[0005] The utility model aims at providing a high-strength wheel hub nut to solve the problem of the wheel hub system bearing high-frequency impact vibration and the traditional nut being prone to progressive loosening due to lack of effective anti-loosening structure.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme: a high-strength wheel hub nut, comprising a mounting rod;

[0007] The outer end of the mounting rod is threadedly connected with a nut, the connecting part of the nut and the mounting rod is a circular truncated cone structure, and the end of the nut away from the mounting rod is a spherical structure.

[0008] The nut is mounted in the inner side of the rim, the inner side of the rim is fixedly connected with the radially and equidistantly distributed spokes, and the rim and the spokes form a hub, a mounting disc is arranged in the middle of the hub, an annular equidistantly distributed mounting hole is arranged in the inner side of the mounting disc, a mounting rod is slidably connected in the mounting hole, the mounting rod penetrates through the mounting hole and extends to the inner side of the rim, a thread matched with the vehicle wheel shaft is arranged on the part of the mounting rod located in the inner side of the rim, the threads at both ends of the mounting rod are consistent in rotation direction, a central hole for connecting the wheel shaft is arranged on the inner side of the mounting disc, the central hole is located at the geometric center of the mounting disc, and a connecting hole is arranged on the side of the mounting disc away from the central hole.

[0009] Preferably, the mounting rod penetrates through the mounting hole and extends to the inner side of the rim, a thread matched with the vehicle wheel shaft is arranged on the part of the mounting rod located in the inner side of the rim, the threads at both ends of the mounting rod are consistent in rotation direction, a central hole for connecting the wheel shaft is arranged on the inner side of the mounting disc, and the central hole is located at the geometric center of the mounting disc.

[0010] Preferably, an annular equidistantly distributed positioning strip is arranged on the inner side of the mounting hole, and a positioning sleeve is slidably connected in the inner side of the mounting hole, the outer side of the positioning sleeve is provided with a slot matched with the positioning strip, and the mounting rod is slidably connected in the inner side of the mounting hole and the positioning sleeve.

[0011] Preferably, a gasket is fixedly connected to one end of the positioning sleeve, and the gasket and the positioning sleeve are coaxially arranged on the outer side of the mounting rod, anti-skid patterns are arranged on both side end faces of the gasket, and the gasket is matched with the frustoconical end face of the nut.

[0012] Preferably, a detachable protective disc is arranged on the outer side of the mounting disc, and the protective disc has a hexagonal structure, and an annular equidistantly distributed sleeve is fixedly connected to the outer side of the protective disc.

[0013] Preferably, equidistantly distributed radial slots are arranged on the inner wall of the sleeve, the axial positions of the slots are aligned with the outer contour of the spherical end portion of the nut, and a fixing bolt is slidably connected to the central position of the protective disc.

[0014] Preferably, the sleeve is inserted into the inner side of the mounting hole, an annular gap is formed between the inner wall of the sleeve and the outer wall of the nut, and the fixing bolt penetrates through the protective disc and is threadedly connected with the connecting hole arranged on the mounting disc.

[0015] Compared with the prior art, the utility model has the advantages that:

[0016] The detachable protective disc and the sleeve effectively limit the rotation of the nut, prevent loosening caused by vibration, and enhance the stability and safety of the entire hub structure.

[0017] The circular-truncated-cone connecting part effectively reduces the shearing stress of the thread root through a progressive compression effect, improves the strength of the nut, and the installation rod is consistent with the thread direction of the nut, so that the screwing of the nut can synchronously drive the installation rod, realizes a bidirectional self-locking mechanism, and improves the assembly reliability. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a three-dimensional structure schematic diagram of the present application;

[0019] Figure 2 It is an explosion structure schematic diagram of the present application;

[0020] Figure 3 It is a cross-section structure schematic diagram of the present application;

[0021] Figure 4 It is a three-dimensional structure schematic diagram of the present application Figure 3 It is an enlarged structure schematic diagram of A in the middle;

[0022] Figure 5 It is an explosion structure schematic diagram of the installation rod of the present application;

[0023] Figure 6 It is a protective disc structure schematic diagram of the present application.

[0024] In the figure: 1, wheel rim; 2, spoke; 3, mounting disc; 4, mounting hole; 5, center hole; 6, connecting hole; 7, positioning strip; 8, installation rod; 9, nut; 10, positioning sleeve; 11, gasket; 12, protective disc; 13, sleeve; 14, fixing bolt. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present application.

[0026] Embodiment one: please refer to Figure 1 - Figure 6The utility model provides the following technical scheme: A kind of high-strength hub nut, including mounting rod 8;The outer end of mounting rod 8 is threadedly connected with nut 9, the connecting part of nut 9 and mounting rod 8 is circular truncated cone structure, and the end of nut 9 away from mounting rod 8 is spherical structure;Nut 9 is installed in wheel rim 1 inner side, and wheel rim 1 inner side is fixedly connected with annular equidistant distribution spoke 2, and wheel rim 1 and spoke 2 constitute hub, and hub middle is equipped with mounting disc 3, and mounting disc 3 inside is equipped with annular equidistant distribution mounting hole 4, mounting hole 4 inside is slidably connected with mounting rod 8, mounting rod 8 passes through mounting hole 4 and extends to wheel rim 1 inner side, and the part of mounting rod 8 located in wheel rim 1 inner side is equipped with the thread matched with vehicle wheel shaft, and the thread of mounting rod 8 both ends is consistent in rotation direction, and the inner side of mounting disc 3 is equipped with central hole 5 for connecting wheel shaft, central hole 5 is located in the geometric center of mounting disc 3, and the side of mounting disc 3 away from central hole 5 is equipped with connecting hole 6;Mounting rod 8 passes through mounting hole 4 and extends to wheel rim 1 inner side, and the part of mounting rod 8 located in wheel rim 1 inner side is equipped with the thread matched with vehicle wheel shaft, and the thread of mounting rod 8 both ends is consistent in rotation direction, and the inner side of mounting disc 3 is equipped with central hole 5 for connecting wheel shaft, and central hole 5 is located in the geometric center of mounting disc 3;Mounting hole 4 inner side is equipped with annular equidistant distribution positioning strip 7, and mounting hole 4 inside is slidably connected with positioning sleeve 10, and the outer side of positioning sleeve 10 is equipped with the slot matched with positioning strip 7, and mounting rod 8 is slidably connected in positioning sleeve 10 and mounting hole 4 inside;Positioning sleeve 10 one end is fixedly connected with gasket 11, and gasket 11 and positioning sleeve 10 are coaxially sleeved in the outer side of mounting rod 8, and the both sides end surface of gasket 11 is equipped with antiskid line, and gasket 11 is attached with the circular truncated cone end surface of nut 9.

[0027] When hub assembly operation, operator first several mounting rod 8 is rotated into the standard thread hole in the end of vehicle wheel shaft in annular array mode. Each mounting rod 8 is not completely rotated into state, and its extension segment constitutes the temporary support architecture with guiding function, at this time, the mounting disc 3 of hub assembly can form axial sliding fit with mounting rod 8 through its circumferential distribution mounting hole 4, and the sliding of mounting rod 8 in mounting hole 4 drives hub to slide outside mounting rod 8, until hub is installed in place, in the installation process of hub, mounting rod 8 always supports hub, and the sliding direction of hub is limited, so as to prevent wheel rim 1 or spoke 2 from colliding with vehicle parts.

[0028] After hub is installed in place, nut 9 is installed in mounting rod 8 inside at this time, and is rotated by rotating nut 9 and drives it to rotate outside mounting rod 8, since the thread rotation direction of mounting rod 8 both ends is designed as same direction layout, the tightening action of nut 9 will synchronously drive mounting rod 8 to move towards wheel shaft thread hole depth, forms bidirectional self-locking mechanism.

[0029] Before the nut 9 and the mounting rod 8 are connected with each other, the positioning sleeve 10 and the gasket 11 need to be mounted outside the mounting rod 8, and the positioning sleeve 10 is mounted inside the mounting hole 4, the gap between the mounting hole 4 and the mounting rod 8 is filled by the positioning sleeve 10, and the gasket 11 will be in contact with the nut 9, because the mounting hole 4 is matched with the positioning strip 7 and the positioning sleeve 10, the positioning sleeve 10 cannot rotate inside the mounting hole 4, and the gasket 11 cannot rotate, so that the stability of the gasket 11 in the moving state is improved.

[0030] Because the connecting part of the nut 9 and the mounting rod 8 is a circular truncated cone structure, the contact surface of the circular truncated cone connecting part and the gasket 11 has a progressive compression effect, and the taper structure decomposes the axial pre-tightening force along the inclination angle direction, effectively reducing the shear stress peak value borne by the thread root.

[0031] In the embodiment one, the following structure is further disclosed: preferably, a detachable protection disc 12 is arranged outside the mounting disc 3, and the protection disc 12 is in a hexagonal structure, and a plurality of sleeve 13 distributed at equal intervals is fixedly connected to the outer side of the protection disc 12; the inner wall of the sleeve 13 is provided with a plurality of radially distributed slots, the axial position of the slots is aligned with the outer contour of the spherical end part of the nut 9, and a fixing bolt 14 is slidingly connected to the center position of the protection disc 12; the sleeve 13 is inserted into the mounting hole 4, and an annular gap is formed between the inner wall of the sleeve 13 and the outer wall of the nut 9, and the fixing bolt 14 penetrates through the protection disc 12 and is threadedly connected with the connecting hole 6 pre-provided on the mounting disc 3.

[0032] After the nut 9, the positioning sleeve 10 and the gasket 11 are all mounted, the protection disc 12 is mounted outside the mounting disc 3, the sleeve 13 fixedly connected to the outer side of the protection disc 12 is inserted into the mounting hole 4, and the gap between the nut 9 and the mounting hole 4 is filled by the sleeve 13, so that the integrity of the nut 9 and the hub is improved, and the compression resistance of the nut 9 is improved.

[0033] After the sleeve 13 is mounted, the protection disc 12 is fixed by penetrating the fixing bolt 14 through the inside of the protection disc 12 and being threadedly connected with the threaded hole 6, and the position of the sleeve 13 in the mounting hole 4 is fixed, the sleeve 13 limits the rotation of the nut 9 by the intermeshing of the inner slot of the sleeve 13 and the outer side of the nut 9, so that the stability of the nut 9 is improved, and the loosening of the nut 9 caused by the rotation due to vibration is prevented.

[0034] In the description of the utility model, it is necessary to explain, unless another explicit provision and limitation, the term "link" "connection" should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can be indirectly connected through the intermediate medium.

[0035] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part of the technical features, any modification, equivalent replacement, improvement etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A high-strength hub nut, comprising a mounting rod (8); characterized in that The outer end of the mounting rod (8) is threadedly connected with a nut (9), the connecting part of the nut (9) and the mounting rod (8) is in a circular truncated cone structure, and the end of the nut (9) away from the mounting rod (8) is in a spherical structure; the nut (9) is mounted inside a rim (1), the inner side of the rim (1) is fixedly connected with radially and equidistantly distributed spokes (2), and the rim (1) and the spokes (2) constitute a hub, a mounting disc (3) is arranged in the middle of the hub, and the mounting disc (3) is internally provided with radially and equidistantly distributed mounting holes (4), the mounting rod (8) is slidably connected inside the mounting holes (4), the mounting rod (8) penetrates through the mounting holes (4) and extends to the inner side of the rim (1), the part of the mounting rod (8) located inside the rim (1) is provided with threads matched with a vehicle axle, and the threads at the two ends of the mounting rod (8) are in the same direction, the inner side of the mounting disc (3) is provided with a central hole (5) for connecting the axle, the central hole (5) is located at the geometric center of the mounting disc (3), and the side of the mounting disc (3) away from the central hole (5) is provided with a connecting hole (6); the outer side of the mounting disc (3) is provided with a detachable protective disc (12), and the protective disc (12) is in a hexagonal structure, and the outer side of the protective disc (12) is fixedly connected with radially and equidistantly distributed sleeves (13).

2. A high-strength wheel nut as defined in claim 1, wherein: The inner side of the mounting hole (4) is provided with radially and equidistantly distributed positioning strips (7), and the mounting hole (4) is slidably connected with a positioning sleeve (10), the outer side of the positioning sleeve (10) is provided with a slot matched with the positioning strips (7), and the mounting rod (8) is slidably connected inside the positioning sleeve (10) and the mounting hole (4).

3. A high-strength wheel nut as defined in claim 2, wherein: One end of the positioning sleeve (10) is fixedly connected with a gasket (11), and the gasket (11) and the positioning sleeve (10) are coaxially sleeved outside the mounting rod (8), both side end faces of the gasket (11) are provided with anti-skid lines, and the gasket (11) is attached to the circular truncated cone end face of the nut (9).

4. A high-strength wheel nut as defined in claim 3, wherein: The inner wall of the sleeve (13) is provided with equidistantly distributed radial slots, the axial position of the slot is aligned with the outer contour of the spherical end part of the nut (9), and the central position of the protective disc (12) is slidably connected with a fixing bolt (14).

5. A high-strength wheel nut as defined in claim 4, wherein: The sleeve (13) is inserted into the mounting hole (4), and an annular gap is formed between the inner wall of the sleeve (13) and the outer wall of the nut (9), and the fixing bolt (14) penetrates through the protective disc (12) and is threadedly connected with the connecting hole (6) prearranged on the mounting disc (3).

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