CN213360788U

CN213360788U - Nut component

Info

Publication number: CN213360788U
Application number: CN202022006819.2U
Authority: CN
Inventors: 吴志强; 陈章杰; 吴银初; 鲁启立
Original assignee: Guangdong Fuwa Heavy Industry Co Ltd
Current assignee: Guangdong Fuwa Heavy Industry Co Ltd
Priority date: 2020-09-14
Filing date: 2020-09-14
Publication date: 2021-06-04
Anticipated expiration: 2030-09-14

Abstract

The utility model provides a nut component, which is arranged on an axle and comprises a nut, a washer and a clamp spring, wherein the nut is provided with a locking part, and the peripheral wall of the locking part is provided with a plurality of tooth sockets; the locking device comprises a locking part, a gasket, a clamping part and a clamping part, wherein the gasket is connected with one end of the locking part, the peripheral wall of the gasket is provided with a plurality of clamping grooves, the inner peripheral wall of the gasket is convexly provided with the clamping part along the radial direction, and the clamping part is used for clamping with a limiting groove of an axle; the clamp spring is sleeved on the locking portion and provided with a clamping portion, and the clamping portion is matched with the tooth groove and the clamping groove. Through the structural design, the nut component is ensured to have good adjustment precision, and meanwhile, the nut component has high structural strength.

Description

Nut component

Technical Field

The utility model relates to the technical field of auto-parts, especially, relate to a nut component.

Background

During the assembly of the automobile wheel end and the operation of the wheel hub, the wheel hub assembly is connected with the axle head of the axle through the nut component, the nut component provides pretightening force for the bearing of the wheel hub assembly, namely the bearing clearance is adjusted through the nut component, so that the bearing clearance is ensured to meet the operation condition.

The existing nut component comprises a stop nut, a stop washer and a clamp spring, wherein the stop washer and the clamp spring are both installed in a fixing groove at one end of the nut, a plurality of clamping holes which are uniformly distributed are formed in the clamp spring, and the clamping holes determine the adjusting precision of the nut component.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a can improve structural strength and adjust the higher nut component of bearing clearance precision.

In order to achieve the above object, the utility model provides a nut component adopts following technical scheme:

a nut assembly is arranged on an axle and comprises a nut, a washer and a clamp spring, wherein the nut is provided with a locking part, and the peripheral wall of the locking part is provided with a plurality of tooth grooves; the locking device comprises a locking part, a gasket, a clamping part and a clamping part, wherein the gasket is connected with one end of the locking part, the peripheral wall of the gasket is provided with a plurality of clamping grooves, the inner peripheral wall of the gasket is convexly provided with the clamping part along the radial direction, and the clamping part is used for clamping with a limiting groove of an axle; the clamp spring is sleeved on the locking portion and provided with a clamping portion, and the clamping portion is matched with the tooth groove and the clamping groove.

Furthermore, the clamping part is provided with a plurality of clamping parts, and one clamping part penetrates through the tooth grooves and the clamping grooves to abut against the end face of the washer.

Furthermore, the clamping part is provided with a connecting part and a buckling part, the connecting part penetrates through the tooth socket and the clamping groove, the buckling part is connected with the connecting part, and the buckling part abuts against the end face of the gasket.

Furthermore, locking teeth are formed between two adjacent tooth grooves, a positioning groove is formed in the peripheral wall of the locking part, and the positioning groove extends along the circumferential direction of the locking part and penetrates through the locking teeth; the inner edge of the clamp spring is clamped in the positioning groove.

Further, the bottom surface of the positioning groove is higher than the bottom surface of the tooth groove.

Further, the width of the tooth socket is equal to the width of the slot, and when the gasket is mounted on the end face of the locking part, the slot is aligned with the tooth socket.

Further, the distance between two adjacent clamping grooves is larger than the distance between two adjacent tooth sockets; the clamping part is arranged corresponding to the clamping groove, and the width of the clamping part is larger than that of the clamping groove.

Further, the clamp spring is provided with an opening, the opening and the clamping portion are respectively located at two opposite ends of the clamp spring, fixing portions extend from two sides of the opening respectively along the direction close to the clamping portion, and the fixing portions abut against the end face of the gasket.

Furthermore, the clamping part comprises a plurality of convex parts, the convex parts are formed by protruding and extending from two opposite inner side walls of the clamp spring respectively, the convex parts are located between the clamping part and the fixing part, and the convex parts are clamped with the tooth grooves.

Furthermore, the first end of the nut is provided with the locking portion, an annular mounting groove is formed in the end face of a second end, opposite to the first end, of the nut, the nut assembly further comprises a stop washer, the stop washer is mounted in the mounting groove, a stop portion is convexly extended towards the axis of the inner side wall of the stop washer, and the stop portion is used for being clamped with a limiting groove of the axle.

The beneficial effects of the utility model reside in that: the utility model discloses a nut component passes through a plurality of tooth's sockets are seted up to locking portion periphery wall, can not need additionally to set up the lock washer that has a plurality of card holes, not only increase its structural strength, and make its structure simplify, just a plurality of draw-in grooves are seted up to the packing ring periphery wall to it is radial spacing, prevents the packing ring rotates for the nut, thereby when guaranteeing that nut component has good adjustment accuracy, has higher structural strength.

Drawings

Fig. 1 is an exploded perspective view of the nut assembly of the present invention;

FIG. 2 is a perspective assembly view of FIG. 1;

FIG. 3 is a schematic view of the assembly process of the nut assembly of the present invention;

FIG. 4 is a bottom view of the nut of FIG. 1;

fig. 5 is a left side view of fig. 4.

Detailed Description

The invention will be further described with reference to the accompanying drawings and specific embodiments:

it will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element and be integral therewith, or intervening elements may also be present. The terms "mounted," "one end," "the other end," and the like are used herein for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1 to 5, the present embodiment provides a nut assembly 100 for being mounted on a shaft head (not shown) of an axle to provide a hub bearing preload, where the nut assembly 100 includes a nut 1, a washer 2 and a clamp spring 3, and both the washer 2 and the clamp spring 3 are mounted on the nut.

As shown in fig. 1 and 2, the nut 1 has a screw hole therein, and the nut assembly 100 is mounted to the spindle head of the axle through the screw hole. The nut 1 is provided with a locking part 11, a first end 12 and a second end 13 which are oppositely arranged, the locking part 11 is arranged at the first end 12, the peripheral wall of the locking part 11 is provided with a plurality of tooth grooves 111 (shown in figure 4) which are uniformly distributed along the radial direction, and a stop washer with a plurality of clamping holes does not need to be additionally arranged, so that the structural strength is increased, and the structure is simplified. Specifically, a locking tooth 112 is formed between two adjacent tooth grooves 111. In this embodiment, the positioning groove 113 for installing the circlip 3 is formed in the outer peripheral wall of the locking portion 11, the positioning groove 113 extends along the circumferential direction of the locking portion 11 to form an annular positioning groove 113 (as shown in fig. 5) and penetrates through the locking tooth 112, preferably, the positioning groove 113 is located in the middle of the locking tooth 112 in the axial direction, and the bottom surface of the positioning groove 113 is higher than the bottom surface of the tooth slot 111, so as to ensure that the nut 1 has sufficient strength.

The nut component 100 is further provided with a stop washer 4 (as shown in fig. 1), an annular mounting groove 14 (as shown in fig. 4) is formed in an end surface of the second end 13, the stop washer 4 is mounted in the mounting groove 14 and fixed with the mounting groove 14 in a tight fit manner, and in other embodiments, the stop washer 4 and the mounting groove 14 may also be fixed by a pin. When the nut assembly 100 is mounted on the axle head, the stop washer 4 is located between the nut 1 and the bearing to protect the nut 1 and the bearing, the inner side wall of the stop washer 4 protrudes toward the axle center to form a stop portion 41 (shown in fig. 1) for preventing the rotation of the stop washer with respect to the axle, and the stop portion 41 is used for being engaged with a limit groove (not shown) of the axle.

As shown in fig. 1 and 2, the washer 2 is connected to an end face of the locking portion 11, a plurality of engaging grooves 21 are formed in an outer peripheral wall of the washer 2, a width of the engaging grooves 21 is equal to a width of the tooth grooves 111, preferably, the washer 2 is thin, so that the washer has low strength, and in order to ensure that the strength of the washer 2 meets a preset condition, a distance between two adjacent engaging grooves 21 is greater than a distance between two adjacent tooth grooves 111. In this embodiment, there are 5 slots 21, and the number and other design parameters are set according to the actual requirement of the adjustment precision of the nut component 100.

The inner peripheral wall of the washer 2 is provided with a buckling part 22 in a protruding manner along the radial direction, and the buckling part 22 is used for being buckled with a limiting groove (not shown) of an axle head of an axle, so that the nut component 100 is stably connected with the axle (not shown), the nut component 100 is prevented from rotating relative to the axle in a working state, and the nut component 100 is radially limited. The fastening portion 22 and the stopping portion 41 are located on the same straight line (as shown in fig. 3), so that the two portions limit the nut assembly 100 radially together, and a good limiting effect is achieved. Specifically, the fastening portion 22 is disposed corresponding to one of the locking slots 21, and preferably, the fastening portion 22 is disposed corresponding to the locking slot 21 located at the middle position of the locking slots 21, and in order to ensure that the strength of the gasket 2 meets the preset condition, the width of the fastening portion 22 is greater than the width of the locking slot 21.

The clamp spring 3 is sleeved on the outer peripheral wall of the locking portion 11, specifically, the inner side edge of the clamp spring 3 is clamped into the positioning groove 113 and abuts against the bottom wall of the positioning groove 113, so that the clamp spring is stably connected with the nut 1. The clamp spring 3 is provided with a clamping portion 31 for axially limiting the gasket 2, and the clamping portion 31 is clamped with the tooth groove 111 and the clamping groove 21, so that the gasket 2 is stably connected with the nut 1, the gasket 2 is prevented from rotating relative to the nut 1, and radial limitation is performed on the gasket 2. The number of the engaging portions 31 is multiple, preferably, there are 3 engaging portions 31, one of the engaging portions 31 has a connecting portion 311 for radially limiting the washer 2 and a retaining portion 312 for axially positioning the washer 2, the retaining portion 312 is connected to the connecting portion 311, specifically, the connecting portion 311 is formed by bending and extending from the inner side wall of the snap spring 3 in the axial direction thereof, the connecting portion 311 is used for engaging with the tooth grooves 111 and the locking grooves 21, and the retaining portion 312 is formed by bending and extending from the connecting portion 311 in the radial direction thereof. The engaging portion 31 includes two protrusions 33, the two protrusions 33 form another two engaging portions 31, the two protrusions 33 respectively protrude from two opposite inner sidewalls of the snap spring 3, and the protrusions 33 are located between the engaging portion 31 and the fixing portion 321, and are used for engaging with the tooth grooves 111.

As shown in fig. 2 and 3, when the snap spring 3 is mounted on the end surface of the locking portion 11, the convex portion 33 is engaged with the tooth groove 111 to radially limit the snap spring 3 and the nut 1, so that the snap spring 3 and the nut 1 rotate synchronously; meanwhile, the connecting portion 311 penetrates through the tooth grooves 111 and the clamping grooves 21, that is, the connecting portion 311 radially limits the clamp spring 3, the washer 2 and the nut 1 at the same time, and the fastening portion 312 abuts against the end surface of the washer 2 to fix the washer 2 on the nut 1 and prevent the washer 2 from moving axially relative to the nut 1, so that synchronous rotation of the three components is realized. In other embodiments, the connecting portion 311 may only be engaged with the engaging groove 21, and not engaged with the tooth groove 111, as long as the gasket 2 is radially limited relative to the nut 1, that is, a protruding portion 33 is further provided to limit the radial position of the snap spring 3 relative to the nut 1, that is, the snap spring 3 and the gasket 2 are radially limited by using independent radial positioning structures, which positioning structure may be specifically adopted according to actual requirements. Specifically, before the snap spring 3 is installed, the washer 2 needs to be installed on the end surface of the locking portion 11, and the locking groove 21 and the tooth groove 111 need to be aligned (as shown in fig. 3) so as to facilitate the fastening portion 312 to pass through the locking groove 21 and the tooth groove 111, that is, the nut assembly 100 has an adjustment accuracy of the product of the number of the tooth grooves 111 and the number of the locking grooves 21, that is, the adjustment accuracy of the nut assembly 100 is determined by the product of the number of the tooth grooves 111 and the number of the locking grooves 21, so that the adjustment accuracy is not limited by the structure, the adjustment range is expanded, and the adjustment accuracy and the structural strength are high.

For easy dismounting, jump ring 3 has opening 32, opening 32 with block portion 31 is located respectively jump ring 3's relative both ends, opening 32 both sides are respectively along being close to block portion 31's direction extension has and is used for carrying out the spacing fixed part 321 of axial to packing ring 2, fixed part 321 support lean on in on the terminal surface of packing ring 2, two fixed part 321 forms three stuck point with a portion 312 of detaining, and three stuck point carries out the axial to packing ring 2 jointly spacingly, prevents it to axial motion to realize the firm connection between packing ring 2 and the nut 1. When the clamp spring 3 is removed, the two fixing portions 321 are broken so that the opening 32 is opened, and the clamp spring can be removed.

The utility model discloses a nut component passes through a plurality of tooth's sockets are seted up to locking portion periphery wall, can not need additionally to set up the lock washer that has a plurality of card holes, not only increase its structural strength, and make its structure simplify, just a plurality of draw-in grooves are seted up to the packing ring periphery wall to it is radial spacing, prevents the packing ring rotates for the nut, thereby when guaranteeing that nut component has good adjustment accuracy, has higher structural strength.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still make modifications to the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some technical features, and these modifications or substitutions do not make the essence of the corresponding technical solutions depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. The utility model provides a nut component, installs on the axletree, its characterized in that: the nut is provided with a locking part, and the peripheral wall of the locking part is provided with a plurality of tooth sockets; the locking device comprises a locking part, a gasket, a clamping part and a clamping part, wherein the gasket is connected with one end of the locking part, the peripheral wall of the gasket is provided with a plurality of clamping grooves, the inner peripheral wall of the gasket is convexly provided with the clamping part along the radial direction, and the clamping part is used for clamping with a limiting groove of an axle; the clamp spring is sleeved on the locking portion and provided with a clamping portion, and the clamping portion is matched with the tooth groove and the clamping groove.

2. The nut assembly of claim 1 wherein: the clamping part is provided with a plurality of clamping parts, and the clamping part penetrates through the tooth grooves and the clamping grooves to be abutted against the end face of the gasket.

3. The nut assembly of claim 2 wherein: the clamping part is provided with a connecting part and a buckling part, the connecting part penetrates through the tooth socket and the clamping groove, the buckling part is connected with the connecting part, and the buckling part is abutted against the end face of the gasket.

4. The nut assembly of claim 1 wherein: locking teeth are formed between two adjacent tooth grooves, a positioning groove is formed in the peripheral wall of the locking part, and the positioning groove extends along the circumferential direction of the locking part and penetrates through the locking teeth; the inner edge of the clamp spring is clamped in the positioning groove.

5. The nut assembly of claim 4 wherein: the bottom surface of the positioning groove is higher than the bottom surface of the tooth groove.

6. The nut assembly of claim 1 wherein: the width of the tooth socket is equal to that of the clamping groove, and when the gasket is installed on the end face of the locking part, the clamping groove is aligned to the tooth socket.

7. The nut assembly of claim 1 wherein: the distance between two adjacent clamping grooves is larger than the distance between two adjacent tooth sockets; the clamping part is arranged corresponding to the clamping groove, and the width of the clamping part is larger than that of the clamping groove.

8. The nut assembly of claim 1 wherein: the clamp spring is provided with an opening, the opening and the clamping portion are respectively located at two opposite ends of the clamp spring, two sides of the opening respectively extend along a direction close to the clamping portion to form a fixing portion, and the fixing portion abuts against the end face of the gasket.

9. The nut assembly of claim 8 wherein: the clamping part comprises a plurality of convex parts, the convex parts are formed by protruding extension of two opposite inner side walls of the clamp spring respectively, the convex parts are located between the clamping part and the fixing part, and the convex parts are clamped with the tooth grooves.

10. The nut assembly of claim 1 wherein: the first end of nut is equipped with locking portion, the terminal surface of nut with the relative second end of first end has seted up annular mounting groove, and nut component still including ending a packing ring, end a packing ring install in the mounting groove, the inside wall that ends a packing ring is protruding to be stretched towards its axle center and is stopped the position portion, stop the position portion be used for with the spacing groove block of axletree.