CN214367197U

CN214367197U - Automobile brake disc connecting bolt

Info

Publication number: CN214367197U
Application number: CN202120577653.1U
Authority: CN
Inventors: 赵关祥; 陈雪军; 陈国芳; 沈高飞; 朱瑞生
Original assignee: Zhejiang Rixing Standard Parts Co ltd
Current assignee: Zhejiang Rixing Standard Parts Co ltd
Priority date: 2021-03-22
Filing date: 2021-03-22
Publication date: 2021-10-08
Anticipated expiration: 2031-03-22

Abstract

The utility model belongs to the technical field of automobile spare and accessory part, especially, be automobile brake disc connecting bolt, including the bolt body, the fixed surface of bolt body installs the screw rod, the outer fixed surface of screw rod has thickening portion, the one end welding that the screw rod is close to thickening portion has the nut, thickening portion keeps away from the one end of nut and has seted up the keyway, the one end welding that thickening portion was kept away from to the sleeve pipe has the base, one side fixed mounting that the sleeve pipe is close to the through-hole has the conducting strip, one side movable mounting that the sheathed tube was kept away from to the base has the nut, the ratchet has all been welded with the surface of nut to the surface of base, the one end welding of keeping away from fastening groove of nut has the elastic ring. The utility model discloses a set up the ratchet, make the nut by forward fastening back, the reverse rotation difficulty prevents that the nut is locking, improves connecting bolt's security, through setting up the elastic ring, need not additionally add the elastic gasket again at mounting bolt's in-process, simplifies connecting bolt's installation procedure.

Description

Automobile brake disc connecting bolt

Technical Field

The utility model relates to an automobile spare and accessory part technical field specifically is automobile brake disc connecting bolt.

Background

With the rapid development of the modern automobile manufacturing industry, the requirements on the performance of parts of the braking system of the rolling stock are higher and higher, and the main components of the braking system are as follows: the brake disc is connected and fastened with a wheel or an axle through a fastener, the fastening bolt plays an important role in the braking process of the train, and the fastening bolt clamps the plates of the connecting plate through a large tightening pretension force in a bolt rod to generate a large friction force, so that the connection integrity and rigidity are improved, and the plates cannot slide and deform relatively.

There are the following problems:

1. the brake disc connecting bolt can be gradually attenuated along with the lapse of time and fastening torque to and along with the continuous vibration of vibration source, cause coupling nut to appear the phenomenon that takes off, finally appear the nut and drop, and then cause the incident.

2. When the bolt is installed, an elastic gasket is additionally added on the bolt to prop against the bolt, but the bolt and the gasket are small in size and inconvenient to install.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art, the utility model provides an automobile brake disc connecting bolt has solved the current easy not hard up security that leads to the bolt poor with the inconvenient problem of bolt and gasket installation of snail wooden.

In order to achieve the above object, the utility model provides a following technical scheme: automobile brake disc connecting bolt, including the bolt body, the outer fixed surface of bolt body installs the screw rod, the outer skin weld of screw rod has thickening portion, the screw rod is close to the one end welding of thickening portion and has the nut, fastening groove has been seted up to the medial surface of nut, thickening portion keeps away from the one end of nut and has seted up the keyway, one side movable mounting that the nut was kept away from to thickening portion has the sleeve pipe, the sleeve pipe is close to the one end of thickening portion and has seted up the trepanning, the sleeve pipe is kept away from the one end welding of thickening portion and has the base, the through-hole has been seted up to the medial surface of base, one side fixed mounting that the sleeve pipe is close to the through-hole has the conducting strip, sheathed tube one side movable mounting is kept away from to the base has the nut, the surface of base has the ratchet with the surface of nut all, the one end welding of keeping away from fastening groove of nut has the elastic ring.

As an optimal technical scheme of the utility model, the material of screw rod, thickening portion, nut, sleeve pipe, base and nut is low carbon steel, the material of elasticity ring is the spring steel.

As a preferred technical scheme of the utility model, the keyway is that annular array distributes in the lateral surface of thickening portion, the cover groove is that annular array distributes in sheathed tube lateral surface.

As an optimal technical scheme of the utility model, the cover groove is regular hexagon hole groove, the vertical section of nut is regular hexagon.

As an optimized technical scheme of the utility model, the ratchet is the wedge groove, the ratchet is the annular array and distributes in the surface of base.

As a preferred technical scheme of the utility model, the elastic ring is wavy, the elastic ring is the annular array and distributes in the lateral surface of nut.

Compared with the prior art, the utility model provides an automobile brake disc connecting bolt possesses following beneficial effect:

1. this car brake disc connecting bolt through setting up the ratchet, makes the nut by forward fastening back, and the reverse rotation difficulty prevents that the nut is locking, improves connecting bolt's security.

2. This car brake disc connecting bolt through setting up the elastic ring, need not additionally add the elastic gasket again at the in-process of construction bolt, simplifies connecting bolt's installation procedure.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a side view of the bolt body structure of the present invention;

FIG. 3 is a schematic view of the bolt body structure of the present invention;

FIG. 4 is a schematic view of the structure of the sleeve of the present invention;

fig. 5 is a schematic view of the nut structure of the present invention.

In the figure: 1. a bolt body; 2. a screw; 3. thickening part; 4. a nut; 5. a fastening groove; 6. a keyway; 7. a sleeve; 8. sleeving a groove; 9. a base; 10. a through hole; 11. a heat conductive sheet; 12. a nut; 13. a ratchet; 14. an elastic ring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Examples

Referring to fig. 1-5, the present invention provides the following technical solutions: automobile brake disc connecting bolt, including bolt body 1, the outer fixed surface of bolt body 1 installs screw rod 2, the outer skin weld of screw rod 2 has thickening portion 3, screw rod 2 is close to the one end welding of thickening portion 3 and has nut 4, fastening slot 5 has been seted up to the medial surface of nut 4, thickening portion 3 keeps away from the one end of nut 4 and has seted up keyway 6, one side movable mounting that nut 4 was kept away from to thickening portion 3 has sleeve pipe 7, sleeve pipe 7 is close to thickening portion 3's one end and has seted up trepanning 8, the one end welding that thickening portion 3 was kept away from to sleeve pipe 7 has base 9, through-hole 10 has been seted up to the medial surface of base 9, one side fixed mounting that sleeve pipe 7 is close to through-hole 10 has conducting strip 11, one side movable mounting that sleeve pipe 7 was kept away from to base 9 has nut 12, the outer surface of base 9 and the outer skin weld of nut 12 has ratchet 13, the one end welding of nut 4 that keeps away from fastening slot 5 has elastic ring 14.

In this embodiment, the plate of tight brake disc of bolt body 1 clamp, thickening portion 3 provides the mounted position for keyway 6, and the heat that the through-hole 10 produced with 13 friction of ratchet in time distributes away, and the supplementary heat dissipation of conducting strip 11 when the brake disc function.

Specifically, the screw 2, the thickened portion 3, the nut 4, the sleeve 7, the base 9 and the nut 12 are all made of low-carbon steel, and the elastic ring 14 is made of spring steel.

In this embodiment, the screw 2 and the nut 4 made of the low carbon steel material have good toughness, and the screw 2 and the nut 12 form a thread fit.

Specifically, the key slots 6 are distributed on the outer side surface of the thickened portion 3 in an annular array, and the sleeve slots 8 are distributed on the outer side surface of the sleeve 7 in an annular array.

In this embodiment, the key slots 6 and the sleeve slots 8 with the same number and size are mutually clamped, so as to ensure that the sleeve 7 can rotate together with the screw rod 2.

Specifically, the fastening groove 5 is a regular hexagonal hole groove, and the vertical section of the nut 12 is a regular hexagon.

In this embodiment, the fastening groove 5 can be inserted with the hexagon socket wrench clamping bolt body 1 to cooperate with the fastening nut 12, and the nut 12 prevents the sleeve 7 from loosening.

Specifically, the ratchet teeth 13 are wedge-shaped grooves, and the ratchet teeth 13 are distributed on the outer surface of the base 9 in a circular array.

In this embodiment, the ratchets 13 on the surface of the base 9 are engaged with the ratchets 13 on the surface of the nut 12 to ensure that the nut 12 cannot rotate reversely after being fastened in the forward direction.

Specifically, the elastic ring 14 is wavy, and the elastic ring 14 is distributed on the outer side surface of the nut 4 in an annular array.

In this embodiment, the wavy elastic ring 14 does not deform permanently during long-term extrusion, and the problem of weakening of the elasticity of the elastic ring 14 is effectively avoided.

The utility model discloses a theory of operation and use flow: pass the screw on the brake disc earlier with screw rod 2, wear out end installation sleeve pipe 7 at screw rod 2, make keyway 6 of thickening portion 3 and the grooving 8 looks block on the sleeve pipe 7, then screw up nut 12, along with fastening torque's increase, base 9 closely laminates with the ratchet 13 on nut 12 surface, along with nut 12 is screwed up towards the rotation of locking direction, reverse ratchet 13 on the base 9 makes nut 12 unable counter-rotation, thereby prevent that nut 12 is not hard up, improve the security of bolt body 1, can receive the reaction force exerted by the mounting when elastic ring 14 contradicts with being supported, wavy elastic ring 14 will form elastic deformation and play the safeguard function, need not additionally add the elastic gasket again at the in-process of installation bolt body 1, simplify the installation procedure of bolt body 1.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. Automobile brake disc connecting bolt, including bolt body (1), its characterized in that: the bolt comprises a bolt body (1), a screw rod (2) is fixedly installed on the outer surface of the bolt body (1), a thickened portion (3) is welded on the outer surface of the screw rod (2), a nut (4) is welded at one end, close to the thickened portion (3), of the screw rod (2), a fastening groove (5) is formed in the inner side face of the nut (4), a key groove (6) is formed in one end, away from the nut (4), of the thickened portion (3), a sleeve (7) is movably installed at one side, away from the nut (4), of the thickened portion (3), a sleeve groove (8) is formed in one end, close to the thickened portion (3), of the sleeve (7), a base (9) is welded at one end, away from the thickened portion (3), of the sleeve (7), a through hole (10) is formed in the inner side face of the base (9), a heat conducting fin (11) is fixedly installed at one side, close to the through hole (10), a nut (12) is movably installed at one side, away from the sleeve (7), of the base (9), ratchets (13) are welded on the outer surface of the base (9) and the outer surface of the nut (12), and an elastic ring (14) is welded on one end, far away from the fastening groove (5), of the nut (4).

2. The automotive brake disc attachment bolt of claim 1, wherein: the screw rod (2), the thickened portion (3), the screw cap (4), the sleeve (7), the base (9) and the nut (12) are all made of low-carbon steel, and the elastic ring (14) is made of spring steel.

3. The automotive brake disc attachment bolt of claim 1, wherein: keyway (6) are the lateral surface that annular array distributes in thickening portion (3), cover groove (8) are the lateral surface that annular array distributes in sleeve pipe (7).

4. The automotive brake disc attachment bolt of claim 1, wherein: the sleeve groove (8) is a regular hexagon hole groove, and the vertical section of the nut (12) is a regular hexagon.

5. The automotive brake disc attachment bolt of claim 1, wherein: the ratchet teeth (13) are wedge-shaped grooves, and the ratchet teeth (13) are distributed on the outer surface of the base (9) in a circular array mode.

6. The automotive brake disc attachment bolt of claim 1, wherein: the elastic ring (14) is wavy, and the elastic ring (14) is distributed on the outer side surface of the screw cap (4) in an annular array manner.