CN210106372U

CN210106372U - High-strength spindle nut

Info

Publication number: CN210106372U
Application number: CN201920968263.XU
Authority: CN
Inventors: 孙沧淼; 孙国耀; 崔春风
Original assignee: Longyan Rong Yao Machinery Industry Co Ltd
Current assignee: Longyan Rong Yao Machinery Industry Co Ltd
Priority date: 2019-06-26
Filing date: 2019-06-26
Publication date: 2020-02-21
Anticipated expiration: 2029-06-26

Abstract

The utility model discloses a high-strength main shaft nut, belonging to the technical field of main shaft nuts, comprising a first nut body which is cylindrical, a second nut body which is movably sleeved on one end of the first nut body and is also cylindrical, the locking assemblies comprise a locking plate movably embedded on the inner side wall of the first central hole and a guide rod, one end of the guide rod is fixedly connected with one side surface of the locking plate and penetrates through the first nut body, the other side surface of the locking plate is provided with second screw teeth in staggered tooth fit with the main shaft, the other end surface of the guide rod is provided with a first inclined surface, and a second inclined surface in inclined wedge fit with the first inclined surface is arranged between the inner side wall of the inner concave hole and the other end surface of the second nut body; the integral strength is better, and the matching with the main shaft is firmer.

Description

High-strength spindle nut

Technical Field

The utility model relates to a spindle nut technical field, more specifically relates to a high strength spindle nut.

Background

The spindle nut is applied to the spindle and is matched with the locking piece of the spindle, the spindle nut mainly has a hexagonal specification and a cylindrical specification, and in automobile application, the spindle nut needs to bear large force usually, and the nut main body is loosened due to the fact that the nut main body is easy to slide teeth and the like or is cracked due to the fact that the strength of the nut main body is insufficient.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the technical problem to be solved by the present invention is to provide a high-strength spindle nut, which forms a spindle nut by arranging a first nut body and a second nut body sleeved with the first nut body, and forms a better protection for the first nut body by using the large-diameter second nut body sleeved outside the first nut body, thereby improving the compressive strength of the first nut body and further improving the overall strength of the whole body; and through the locking plate that has and the wrong tooth complex of main shaft that sets up, come the lock after the installation of first nut body, thereby the condition that the great reduction nut slips the tooth and leads to the pine to take off, and utilize and carve the cooperation to one side between the second inclined plane of the interior groovy of second nut body and the first inclined plane of guide pillar, thereby realize also promoting the guide pillar and come the locking plate of impressing when second nut body and the first nut body complex, make the second thread on the locking plate take place the wrong tooth cooperation with the main shaft, realize locking, such mode also can very big reduction locking Assembly's locking process, make the integral erection more convenient.

To achieve the purpose, the utility model adopts the following technical proposal: a high-strength spindle nut comprises a first nut body which is cylindrical, a second nut body which is movably sleeved on one end of the first nut body and is also cylindrical, and a plurality of locking assemblies;

a first central hole and a second central hole which penetrate through the first nut body and the second nut body are respectively formed in one end face of the first nut body and one end face of the second nut body, first threads which are used for being fixedly matched are arranged on the inner side walls of the first central hole and the second central hole, an inner concave hole which is communicated with the second central hole and into which one end of the first nut body extends is formed in the other end face of the second nut body, and when the first nut body and the second nut body are sleeved and matched, the inner top wall of the inner concave hole is in contact with and abuts against one end face of the first nut body;

a plurality of inner grooves which are in one-to-one correspondence with the locking assemblies and are uniformly distributed along the circumference of the inner side wall of the first central hole are arranged on the inner side wall of the first central hole at a position close to one end face of the first nut body, guide holes which penetrate through the first nut body outwards are arranged at the central position on the inner bottom surface of each inner groove, each locking assembly comprises a locking plate which is movably embedded in the inner groove and a guide rod, one end of each guide rod is fixedly connected with one side face of the locking plate and movably penetrates through the corresponding guide hole, the other side face of each locking plate is an arc face matched with the inner side wall of the first central hole and is provided with second threads which are in staggered tooth matching with the main shaft, the other end of each guide rod extends out of the first nut body through the guide holes in a movable mode, the end face of each guide rod is a first inclined face which is inclined towards the other end face along the end face direction of the first nut body, and a transition face is arranged, the transition surface is a second inclined surface which is obliquely wedged and matched with the first inclined surface, and when the first nut body is sleeved and matched with the second nut body, the first inclined surface is contacted and propped against the second inclined surface.

Optionally, a plurality of first notch grooves which are uniformly distributed around the circumference of the first nut body and penetrate through the other end surface of the first nut body are formed in the peripheral wall of the first nut body below the guide hole.

Optionally, a plurality of second notch grooves are formed in the peripheral wall of the second nut body, are uniformly distributed around the circumference of the second nut body, and respectively penetrate through two end faces of the second nut body.

Optionally, the top edge and the bottom edge of the outer peripheral wall of the first nut body, the top edge and the bottom edge of the outer peripheral wall of the second nut body, the top edge and the bottom edge of the inner peripheral wall of the first central hole, and the top edge and the bottom edge of the inner peripheral wall of the second central hole are provided with arc chamfers.

Optionally, a third thread is arranged on the inner side wall of the concave hole, and a fourth thread matched with the third thread is arranged on the outer peripheral wall of the first nut body above the guide hole.

The utility model has the advantages that: the utility model forms the main shaft nut by arranging the first nut body and the second nut body which is sleeved and matched with the first nut body, and forms better protection for the first nut body by utilizing the second nut body with large diameter which is sleeved outside the first nut body, thereby improving the compressive strength of the first nut body and further improving the integral strength; and through the locking plate that has and the wrong tooth complex of main shaft that sets up, come the lock after the installation of first nut body, thereby the condition that the great reduction nut slips the tooth and leads to the pine to take off, and utilize and carve the cooperation to one side between the second inclined plane of the interior groovy of second nut body and the first inclined plane of guide pillar, thereby realize also promoting the guide pillar and come the locking plate of impressing when second nut body and the first nut body complex, make the second thread on the locking plate take place the wrong tooth cooperation with the main shaft, realize locking, such mode also can very big reduction locking Assembly's locking process, make the integral erection more convenient.

Drawings

Fig. 1 is a schematic view of an overall structure of a high-strength spindle nut according to an embodiment of the present invention.

Fig. 2 is an enlarged schematic view of the position a in fig. 1.

Fig. 3 is a schematic diagram illustrating a loosening state of a high-strength spindle nut locking assembly according to an embodiment of the present invention.

Fig. 4 is a schematic structural view of a second nut body of a high-strength spindle nut according to an embodiment of the present invention.

In the figure: 1. a first nut body; 10. a first central aperture; 11. an inner groove; 12. a guide hole; 13. a first notch groove; 2. a second nut body; 20. a second central aperture; 21. an inner concave hole; 211. a second inclined surface; 22. a second notch groove; 31. a locking plate; 32. a guide bar; 321. a first inclined surface.

Detailed Description

The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.

As shown in fig. 1 and 4, a high-strength spindle nut includes a first nut body 1 in a cylindrical shape, a second nut body 2 movably sleeved on one end of the first nut body 1 and also in a cylindrical shape, and a plurality of locking assemblies; specifically, the installation process may be to fix the first nut body 1 on a main shaft (not shown), fix the second nut body 2 on the main shaft, and enable the second nut body 2 to be sleeved on the first nut body 1, so as to be in sleeved fit with the first nut body 1.

As shown in fig. 1, a first central hole 10 and a second central hole 20 are respectively arranged on one end surface of the first nut body 1 and the second nut body 2, the inner side walls of the first central hole 10 and the second central hole 20 are respectively provided with a first thread (not shown) for fixed fit, the other end surface of the second nut body 2 is provided with an inner concave hole 21 which is communicated with the second central hole 20 and into which one end of the first nut body 1 extends, and when the first nut body 1 and the second nut body 2 are sleeved and matched, the inner top wall of the inner concave hole 21 is contacted and abutted with one end surface of the first nut body 1; specifically, when the second nut body 2 is sleeved and matched with the first nut body 1, when one end surface of the first nut body 1 is contacted and abutted with the inner top wall of the concave hole 21 of the second nut body 2, it can be judged that the second nut body 2 is matched with the first nut body 1 in place.

As shown in fig. 1 to 4, a plurality of inner grooves 11 corresponding to the locking components one by one and evenly distributed along the circumference of the inner side wall of the first central hole 10 are arranged on the inner side wall of the first central hole 10 near one end surface of the first nut body 1, a guide hole 12 penetrating the first nut body 1 outwards is arranged on the central position on the inner bottom surface of the inner groove 11, the locking components comprise a locking plate 31 movably embedded in the inner groove 11 and a guide rod 32 with one end fixedly connected with one side surface of the locking plate 31 and movably penetrating the guide hole 12, the other side surface of the locking plate 31 is an arc surface matched with the inner side wall of the first central hole 10 and is provided with second threads (not shown in the figure) in staggered teeth fit with the main shaft, the other end of the guide rod 32 movably extends out of the first nut body 1 through the guide hole 12 and is a first inclined surface 321 inclined along the direction of one end surface of the first nut body 1 facing to the other end surface, a transition surface is arranged between the inner side wall of the inner groove 21 and, the transition surface is a second inclined surface 211 obliquely wedged and matched with the first inclined surface 321, and when the first nut body 1 and the second nut body 2 are sleeved and matched, the first inclined surface 321 is contacted and abutted against the second inclined surface 211; specifically, the guide rod 32 and the locking plate 31 may be welded and fixed, the locking plate 31 may be installed in the first central hole 10, and the locking plate 31 with the guide rod 32 is aligned with the guide hole 12 of the inner groove 11, so that the locking plate 31 is embedded in the inner groove 11, in this embodiment, the other side surface of the locking plate 31 may be an arc surface having the same axis and the same diameter as the inner side surface of the first central hole 10, so as to ensure the matching between the locking plate 31 and the main shaft, in this embodiment, the second threads may be a plurality of strip threads which are opposite to the first threads but can be alternatively embedded in the threads of the main shaft, so as to form a dead lock for the thread matching between the main shaft and the first nut body 1, thereby avoiding the first nut body 1 from generating a thread slipping condition; in addition, the angle of the second inclined surface 211 is the same as that of the first inclined surface 321 in the embodiment, and the second nut body 2 is used for pushing the guide rod 32 by the mutual sliding fit between the first inclined surface 321 and the second inclined surface 211, so that the locking plate 31 is pressed in, and the second threads on the locking plate 31 can be in staggered tooth fit with the threads on the main shaft; the specific operation process comprises the following steps: 1. firstly, manually pulling the guide post outwards to enable the locking plate 31 to be located in the inner groove 11, so that interference on installation of the first nut body 1 and the main shaft is avoided, and specifically, in a figure that a magnet ring is sleeved outside the first nut body 1, the guide post is completely sucked and pulled out by the magnet ring; 2. then the first nut body 1 is arranged on the main shaft, and after the first nut body 1 is arranged, the second nut body 2 can be arranged; 3. mounting a second nut and enabling the second nut body 2 to be in sleeved fit with the first nut body 1; 4. when the second nut body 2 is in sleeved fit with the first falling body, the guide post is pushed by the fit of the first inclined surface 321 and the second inclined surface 211, so that the locking plate 31 is pressed in, and the second threads on the locking plate 31 are in staggered tooth fit with the threads of the main shaft to form locking; 5. when the second nut body 2 and the first nut body 1 are sleeved and matched in place, the second nut body 2 can extrude and limit the guide pillar, and the guide pillar is prevented from sliding out.

The utility model forms the main shaft nut by arranging the first nut body 1 and the second nut body 2 which is sleeved and matched with the first nut body 1, and forms better protection for the first nut body 1 by utilizing the second nut body 2 with large diameter which is sleeved outside the first nut body 1, thereby improving the compressive strength of the first nut body 1 and further improving the integral strength; and through the locking plate 31 that has and the wrong tooth complex of main shaft that sets up, come the lock after the installation of first nut body 1, thereby the condition that the big reduction nut slips the tooth and leads to the pine to take off, and utilize the cooperation of carving to one side between the second inclined plane of the interior concave hole 21 of second nut body 2 and the first inclined plane of guide pillar, thereby realize also promoting the guide pillar and come the locking plate 31 of impressing in second nut body 2 and the first nut body 1 complex, make the second thread on the locking plate 31 take place the wrong tooth complex with the main shaft, realize locking, such mode also can very big reduction locking Assembly's locking process, make the integral erection more convenient.

Alternatively, as shown in fig. 1 and 4, a plurality of first notch grooves 13 are formed in the outer peripheral wall of the first nut body 1 below the guide hole 12, and are uniformly distributed around the circumference of the first nut body 1 and penetrate through the other end surface of the first nut body 1; the peripheral wall of the second nut body 2 is provided with a plurality of second notch grooves 22 which are uniformly distributed around the circumference of the second nut body 2 and respectively penetrate through two end faces of the second nut body 2, and particularly, the provided first notch grooves 13 and the second notch grooves 22 are convenient for operators to clamp and twist the first nut body 1 and the second nut body 2, meanwhile, the weight of the first nut body 1 and the second nut body 2 can be reduced, and the manufacturing cost is saved.

Optionally, the top edge and the bottom edge of the outer peripheral wall of the first nut body 1, the top edge and the bottom edge of the outer peripheral wall of the second nut body 2, the top edge and the bottom edge of the inner peripheral wall of the first central hole 10 and the top edge and the bottom edge of the inner peripheral wall of the second central hole 20 are provided with arc chamfers; specifically, the arc chamfer is arranged at the edge position, so that the stress at the position is balanced, and the fracture condition is not easy to occur.

Optionally, a third thread (not shown) is arranged on the inner side wall of the inner concave hole 21, and a fourth thread (not shown) matched with the third thread is arranged on the outer peripheral wall of the first nut body 1 above the guide hole 12; particularly, the sleeving fit of the first nut body 1 and the second nut body 2 is also a threaded fit, so that the fit strength between the first nut body 1 and the second nut body 2 is further ensured, and the overall structural strength is improved.

While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the spirit and scope of the invention. The present invention is not to be limited by the specific embodiments disclosed herein, and other embodiments that fall within the scope of the claims of the present application are intended to be within the scope of the present invention.

Claims

1. A high strength spindle nut characterized in that:

comprises a first nut body (1) which is cylindrical, a second nut body (2) which is movably sleeved on one end of the first nut body (1) and is also cylindrical, and a plurality of locking components;

a first center hole (10) and a second center hole (20) which penetrate through the first nut body (1) and the second nut body (2) are respectively formed in one end face of the first nut body, first threads which are in threaded fit with a main shaft are respectively arranged on the inner side walls of the first center hole (10) and the second center hole (20), an inner concave hole (21) which is communicated with the second center hole (20) and into which one end of the first nut body (1) extends is formed in the other end face of the second nut body (2), and when the first nut body (1) and the second nut body (2) are sleeved and matched, the inner top wall of the inner concave hole (21) is in contact with and abutted against one end face of the first nut body (1);

in being close to on first centre bore (10) inside wall first nut body (1) terminal surface position be equipped with a plurality of with locking Assembly one-to-one and follow first centre bore (10) inside wall circumference evenly distributed's inner grove (11), be equipped with in central point on the interior bottom surface of inner grove (11) and outwards run through guide hole (12) of first nut body (1), locking Assembly all including the activity inlay locate locking plate (31) in inner grove (11) and one end and locking plate (31) side fixed connection and activity wear to locate guide arm (32) in guide hole (12), the side of locking plate (31) for with first centre bore (10) inside wall cooperation arcwall face just is equipped with and is another tooth complex second thread with the main shaft, the other end warp of guide arm (32) guide hole (12) activity is stretched out first nut body (1) and this terminal surface is for following first nut body (1) one end The nut comprises a first inclined surface (321) which inclines towards the direction of the other end surface, a transition surface is arranged between the inner side wall of the inner concave hole (21) and the other end surface of the second nut body (2), the transition surface is a second inclined surface (211) which is obliquely wedged and matched with the first inclined surface (321), and when the first nut body (1) and the second nut body (2) are sleeved and matched, the first inclined surface (321) is in contact and abutted with the second inclined surface (211).

2. A high strength spindle nut as claimed in claim 1, wherein:

a plurality of first notch grooves (13) which are uniformly distributed around the circumference of the first nut body (1) and penetrate through the other end face of the first nut body (1) are formed in the peripheral wall of the first nut body (1) below the guide hole (12).

3. A high strength spindle nut as claimed in claim 1, wherein:

the peripheral wall of the second nut body (2) is provided with a plurality of second notch grooves (22) which are uniformly distributed around the circumference of the second nut body (2) and respectively penetrate through two end faces of the second nut body (2).

4. A high strength spindle nut as claimed in claim 1, wherein:

the top edge and the bottom edge of the outer peripheral wall of the first nut body (1), the top edge and the bottom edge of the outer peripheral wall of the second nut body (2), the top edge and the bottom edge of the inner side wall of the first central hole (10), and the top edge and the bottom edge of the inner side wall of the second central hole (20) are provided with arc chamfers.

5. A high strength spindle nut as claimed in claim 1, wherein:

and a third thread is arranged on the inner side wall of the inner concave hole (21), and a fourth thread matched with the third thread is arranged on the position above the guide hole (12) on the outer peripheral wall of the first nut body (1).