CN220060209U - Truck hub bearing nut - Google Patents

Abstract

The utility model discloses a truck hub bearing nut, which comprises a hexagonal nut cover, wherein a nut base is penetrated in the hexagonal nut cover, the nut base comprises a central pipe which is used for penetrating through the hexagonal nut cover and is in running fit, and a bottom pipe which is fixedly used for limiting the hexagonal nut cover with one end of the central pipe, an inner channel is formed by combining the inner part of the central pipe and the bottom pipe, an inner thread is arranged on the inner channel, an elastic gasket is arranged at one end of the hexagonal nut, the elastic gasket is sleeved on the central pipe, an outer edge is arranged at one end of the central pipe, a spline pin is arranged at the inner part of one end of the central pipe, which is close to the outer edge, and is clamped on the outer cambered surface of the central pipe.

Description

Truck hub bearing nut

Technical Field

The utility model relates to the technical field of fasteners, in particular to a truck hub bearing nut.

Background

The nut is also called a nut and is a fixing tool, the center of the nut is provided with a hole, and the inner side of the hole is provided with internal threads. When the existing nut is matched with a bolt for use, when the screwing torque of the nut is too large, the bolt and the nut can be too much screwed, so that the bolt and the nut are loosened, safety is affected, meanwhile, the bolt and the nut of the traditional truck hub bearing are matched with each other, secondary fixation is needed through a spline, looseness is avoided, the traditional spline is needed to rotate the bolt and the nut to a designated position when being connected, when deviation occurs, the spline cannot be installed between the bolt and the nut, namely, the design accuracy requirement between the bolt and the nut is too high, the use cost is increased, and a solution is provided below aiming at the problems.

Disclosure of Invention

The utility model aims to solve the problems in the prior art and provide a truck hub bearing nut, which can avoid excessive screwing of bolts and nuts caused by excessive torque when the bolts are screwed, and can be fixed through a spline to any extent.

In order to solve the problems, the utility model adopts the following technical scheme.

The utility model provides a truck hub bearing nut, includes the hexagonal nut lid, nut base is worn to be equipped with in the hexagonal nut lid is inside, nut base is including being used for passing hexagonal nut lid and normal running fit's center tube and the bottom tube that is used for carrying out spacing to hexagonal nut lid with the one end of center tube is fixed, center tube and bottom tube are concentric, the inside combination of center tube and bottom tube forms the internal channel, the one section that the internal channel is close to the bottom tube is provided with continuous internal thread, the one end that the bottom tube was kept away from to hexagonal nut lid is provided with the elastic washer that plays control moment of torsion, the elastic washer cover is established on the center tube, the one end that the center tube is kept away from the bottom tube is provided with outwards outstanding outer edge that plays spacing to the elastic washer, the one end that the center tube is close to outer edge is provided with the spline pin that is used for avoiding not hard up with supporting bolt cooperation, spline pin joint is at the center tube extrados, the one end inside being provided with of internal channel is kept away from the internal thread avoids spline pin pivoted spacing subassembly.

Preferably, the spline pin comprises a pin head, an elastic connection arc and a gear shaping, wherein the pin head is positioned at one end of the inner channel, which is far away from the inner thread, the gear shaping is arranged at one side of the pin head, which is close to the side surface of the central tube, the gear shaping and the limiting component are inserted, the elastic connection arc penetrates through the pin head, the elastic connection arc is in running fit with the pin head, the elastic connection arc is sleeved between the outer edge and the elastic gasket, and the two ends of the elastic connection arc are mutually overlapped.

Preferably, the limiting assembly comprises limiting teeth which are arranged at intervals in a circular shape, and the limiting teeth are positioned in the inner channel and fixedly connected with each other.

Preferably, the spacing teeth are spaced apart by the same width as the individual ones of the teeth.

Preferably, one end of the pin head, which is close to the inner channel, is an arc surface with the same arc degree as the inner channel, and the arc surface end of the pin head and the arc surface of the inner channel are mutually attached.

Preferably, one end of the bottom tube far away from the central tube is fixedly connected with a flange for increasing the contact area, and the inner channel penetrates through the flange.

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

1. this scheme is spacing and extrusion fixed through outer edge and bottom tube to hexagonal nut lid and the elastic washer of cover on the center tube to make elastic washer take place elastic deformation and produce elasticity, elasticity effect is covered at hexagonal nut, thereby make produce frictional force between hexagonal nut lid and the bottom tube, be greater than frictional force when the moment of torsion of covering as hexagonal nut, take place relative slip between hexagonal nut lid and the bottom tube and make the rotation hexagonal nut lid can not continue to twist the nut base, avoided the too big nut that leads to of moment of torsion to twist the problem of too head promptly.

2. The position of the pin head can be adjusted randomly through the fixation between the gear shaping and the limiting teeth, so that no matter what angle the bolt and the nut base are positioned, the pin head can be inserted into a spline groove on the bolt, the requirement on the accuracy of the bolt and the nut is avoided, and the process difficulty is reduced.

Drawings

FIG. 1 is a schematic cross-sectional view of the present utility model;

FIG. 2 is a schematic side elevational view of a spline pin of the present utility model;

FIG. 3 is a schematic elevational view of a spline pin of the present utility model;

fig. 4 is a schematic view of the position structure of the limiting teeth and the inner channel of the present utility model.

The reference numerals in the figures illustrate:

1. a hexagonal nut cap; 2. a nut base; 3. a central tube; 4. a bottom tube; 5. an inner channel; 6. an internal thread; 7. an elastic washer; 8. an outer edge; 9. a spline pin; 10. a limit component; 11. a pin head; 12. an elastic connection arc; 13. gear shaping; 14. limit teeth; 15. and (3) a flange.

Detailed Description

Example 1:

referring to fig. 1-4, a truck hub bearing nut comprises a hexagonal nut cover 1, a nut base 2 is arranged inside the hexagonal nut cover 1 in a penetrating manner, the nut base 2 comprises a central pipe 3 and a bottom pipe 4, the central pipe 3 is used for penetrating through the hexagonal nut cover 1 and is in running fit with the central pipe 3, one end of the central pipe 3 is fixedly connected with a flange 15 for increasing the contact area, the central pipe 3, the bottom pipe 4 and the flange 15 are concentric, an elastic gasket 7 for controlling torque is arranged at one end of the hexagonal nut cover 1, which is far away from the bottom pipe 4, the elastic gasket 7 is sleeved on the central pipe 3, and an outer edge 8 for limiting the elastic gasket 7 is arranged at one end of the central pipe 3, which is far away from the bottom pipe 4, and protrudes outwards.

The inner channel 5 is formed by combining the inner tube 3 and the bottom tube 4, the inner channel 5 penetrates through the flange 15, a section of the inner channel 5, which is close to the bottom tube 4, is provided with continuous internal threads 6, one end of the inner tube 3, which is close to the outer edge 8, is internally provided with a spline pin 9 which is used for being matched with a matched bolt to avoid loosening, the spline pin 9 comprises a pin head 11, an elastic connection arc 12 and a gear shaping 13, the pin head 11 is positioned at one end, which is far away from the internal threads 6, of the inner channel 5, one end, which is close to the inner channel 5, of the pin head 11 is provided with an arc surface identical to the arc surface of the inner channel 5, the arc surface end of the pin head 11 is mutually attached to the arc surface of the inner channel 5, the gear shaping 13 is arranged at one side, which is close to the side surface of the inner tube 3, of the gear shaping 13 is spliced with a limiting component 10, the elastic connection arc 12 penetrates through the pin head 11, the elastic connection arc 12 is in rotating fit with the pin head 11, the elastic connection arc 12 is sleeved between the outer edge 8 and the elastic gasket 7, and two ends of the elastic connection arc 12 are mutually overlapped.

The one end inside that interior passageway 5 kept away from internal thread 6 is provided with the spacing subassembly 10 that avoids spline round pin 9 pivoted, and spacing subassembly 10 includes spacing tooth 14, and spacing tooth 14 is circular interval arrangement, and spacing tooth 14 is located the inside and fixed connection of interior passageway 5, and the interval of spacing tooth 14 is the same with the width of single gear shaping 13 in the gear shaping 13.

Working principle:

with nut base 2 and the bolt cooperation that corresponds, in the one end of bolt stretched into inner channel 5, the external screw thread on the bolt can with the internal screw thread 6 intermeshing on the inner channel 5, apply force to hexagonal nut lid 1, thereby hexagonal nut lid 1 can produce frictional force through the pressure of elastic gasket and nut base 2 between, rotate hexagonal nut lid 1 can drive nut base 2 and rotate, thereby nut base 2 rotates for the bolt, internal screw thread 6 and external screw thread intermesh, thereby accomplish the connection of nut base 2 and bolt, flange 15 is used for increasing area of contact, reduce pressure, hexagonal nut lid 1 receives the moment of torsion when being greater than the frictional force of hexagonal nut lid 1 and nut base 2 excessively, hexagonal nut lid 1 and nut base 2 can send relative rotation, thereby avoid screwing up the head.

After the nut base 2 and the bolt are matched, the pin head 11 is inserted into a spline groove at the top of the bolt, at the moment, the gear shaping 13 at the side surface of the pin head 11 is clamped with the corresponding limiting teeth 14 in the internal channel 5, and the limiting teeth 14 are arranged at 360 degrees, so that no matter the pin head 11 is inserted from any angle, the gear shaping 13 can be clamped with the limiting teeth 14, the pin head 11 is ensured to be stable and not to rotate, the bolt and the nut base 2 are fixed, two elastic connecting arcs 12 are sleeved between the outer edge 8 and the elastic gasket 7, the pin head 11 is fixed, and the pin head 11 is prevented from sliding from the internal channel 5.

Claims (6)

1. A truck hub bearing nut, characterized in that: including hexagon nut lid (1), nut base (2) are worn to be equipped with in hexagon nut lid (1) inside, nut base (2) are including being used for passing hexagon nut lid (1) and normal running fit's center tube (3) and with the fixed bottom tube (4) that are used for spacing hexagon nut lid (1) of one end of center tube (3), center tube (3) and bottom tube (4) are concentric, the inside combination of center tube (3) and bottom tube (4) forms interior passageway (5), one section that interior passageway (5) is close to bottom tube (4) is provided with continuous internal thread (6), one end that hexagon nut lid (1) was kept away from bottom tube (4) is provided with elastic washer (7) that play control torque, elastic washer (7) cover is established on center tube (3), one end that center tube (3) were kept away from bottom tube (4) is provided with outwards outstanding and plays spacing outer edge (8) to elastic washer (7), one end that center tube (3) are close to outer edge (8) is provided with inside cooperation and is used for avoiding at spline (9) of outer spline (9) of joint bolt, and a limiting component (10) for preventing the spline pin (9) from rotating is arranged inside one end, far away from the internal thread (6), of the internal channel (5).

2. A truck hub bearing nut as defined in claim 1 wherein: spline round pin (9) are including round pin head (11), elastic connection arc (12) and gear shaping (13), the one end that internal thread (6) was kept away from to round pin head (11) are located interior passageway (5), gear shaping (13) are arranged in one side that round pin head (11) are close to center tube (3) side, gear shaping (13) and spacing subassembly (10) are pegged graft, elastic connection arc (12) pass round pin head (11), just elastic connection arc (12) and round pin head (11) normal running fit, the cover of elastic connection arc (12) is established between outer edge (8) and elastic washer (7), the both ends of elastic connection arc (12) overlap each other.

3. A truck hub bearing nut as defined in claim 1 wherein: the limiting assembly (10) comprises limiting teeth (14), wherein the limiting teeth (14) are arranged at intervals in a circular shape, and the limiting teeth (14) are positioned in the inner channel (5) and fixedly connected.

4. A truck hub bearing nut as defined in claim 3 wherein: the spacing teeth (14) are spaced apart by the same width as the individual ones (13) of the gear teeth (13).

5. A truck hub bearing nut as defined in claim 2 wherein: one end of the pin head (11) close to the inner channel (5) is an arc surface with the same radian as that of the inner channel (5), and the arc surface end of the pin head (11) is mutually attached to the arc surface of the inner channel (5).

6. A truck hub bearing nut as defined in claim 1 wherein: one end of the bottom pipe (4) far away from the central pipe (3) is fixedly connected with a flange (15) for increasing the contact area, and the inner channel (5) penetrates through the flange (15).