CN216131333U

CN216131333U - Automobile lead screw

Info

Publication number: CN216131333U
Application number: CN202120845806.6U
Authority: CN
Inventors: 龚慧; 万兰
Original assignee: Shanghai Halong Automobile Standard Part Co ltd
Current assignee: Shanghai Halon Technology Co.,Ltd.
Priority date: 2021-04-23
Filing date: 2021-04-23
Publication date: 2022-03-25
Anticipated expiration: 2031-04-23

Abstract

The utility model belongs to the technical field of lead screws, and discloses a lead screw for an automobile, which comprises a lead screw body, wherein a ball nut is arranged outside the lead screw body, splines are symmetrically arranged at two ends of the lead screw body, one side of each spline, which faces the lead screw body, is provided with a thread groove, one side of the lead screw body, which faces the splines, is fixed with a connecting rod, the outer wall of the connecting rod is integrally formed with external threads, the outer wall of the connecting rod is provided with a screw hole at a position close to the middle position, and the outer wall of each spline is screwed and connected with a fastening bolt. The whole process is not required to be abandoned, and resources are saved.

Description

Automobile lead screw

Technical Field

The utility model belongs to the technical field of lead screws, and particularly relates to a lead screw for an automobile.

Background

The lead screw is a transmission element which is most frequently used on tool machinery and precision machinery, has the main function of converting rotary motion into linear motion or converting torque into axial repeated acting force, and has the characteristics of high precision, reversibility and high efficiency.

But present current lead screw has certain defect, and the body of rod and the spline connection end at both ends of traditional lead screw are integrated into one piece, can't carry out local change after the spline damages, can only wholly abandon, comparatively extravagant resource.

Disclosure of Invention

The utility model aims to provide a lead screw for an automobile, which aims to solve the problem that the rod body of the traditional lead screw and the spline connecting ends at two ends are integrally formed, and the local replacement cannot be carried out after a spline is damaged in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a lead screw for car, includes the lead screw body, the externally mounted of lead screw body has ball nut, and the both ends symmetry of lead screw body installs the spline, the thread groove has been seted up towards one side of lead screw body to the spline, the lead screw body is fixed with the connecting rod towards one side of spline, the exterior wall integrated into one piece of connecting rod has the external screw thread, and the exterior wall of connecting rod is close to intermediate position department and has seted up the screw, the exterior wall of spline closes soon and is connected with fastening bolt, fastening bolt's tip closes soon and is connected to the inside of screw.

Preferably, a positioning groove is formed in one side, away from the screw rod body, of the spline, and a positioning rod is fixed at the middle position of the bottom inside the positioning groove.

Preferably, the length of the positioning rod is smaller than the depth of the positioning groove.

Preferably, the mounting plates are symmetrically fixed on the outer surface wall of the spline, and mounting holes are formed in the outer surface wall of the mounting plates.

Preferably, an oil filling hole is formed in the outer surface wall of the ball nut, and the oil filling hole is of a circular structure.

Preferably, the outer wall of the screw body is integrally formed as a threaded portion, and the ball nut is rotated outside the screw body through the threaded portion.

Compared with the prior art, the utility model has the beneficial effects that:

(1) the connecting rod can be detachably fixed between the rod body and the spline through the matching of the thread groove, the connecting rod, the external thread, the fastening bolt and the like, when the spline is damaged and cannot be used, the fastening bolt can be turned down, then the spline is turned, the connecting rod provided with the external thread is screwed out of the thread groove, the damaged spline can be replaced, the integral abandon is not needed, and resources are saved.

(2) According to the utility model, by additionally arranging the positioning groove and the positioning rod, when the screw rod is installed on an automobile, the accuracy of screw rod installation can be effectively improved by using the positioning groove and the positioning rod, the deflection is avoided, and the aligned screw rod is beneficial to quickly screwing a subsequent screw, so that the screw rod is labor-saving and convenient.

Drawings

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

FIG. 2 is a schematic structural view of a lead screw body according to the present invention;

FIG. 3 is a side view of the spline of the present invention;

in the figure: 1. a lead screw body; 2. a threaded portion; 3. a ball nut; 4. an oil filler hole; 5. a spline; 6. mounting a plate; 7. fastening a bolt; 8. positioning a groove; 9. positioning a rod; 10. a connecting rod; 11. an external thread; 12. a screw hole; 13. a thread groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides the following technical solutions: the utility model provides a lead screw for car, including lead screw body 1, the externally mounted of lead screw body 1 has ball nut 3, and spline 5 is installed to the both ends symmetry of lead screw body 1, thread groove 13 has been seted up towards one side of lead screw body 1 to spline 5, lead screw body 1 is fixed with connecting rod 10 towards one side of spline 5, the exterior wall integrated into one piece of connecting rod 10 has external screw thread 11, and the exterior wall of connecting rod 10 is close to intermediate position department and has seted up screw 12, the exterior wall of spline 5 closes soon and is connected with fastening bolt 7, fastening bolt 7's tip closes soon and is connected to the inside of screw 12, when spline 5 damages unable use, fastening bolt 7 can be rotated down, then rotate spline 5 again, connecting rod 10 that will set up external screw thread 11 is followed thread groove 13 internal screw out can, can damage the change of spline 5, need not wholly to abandon, comparatively save the resource.

Further, constant head tank 8 has been seted up to one side that lead screw body 1 was kept away from to spline 5, and the inside bottom intermediate position department of constant head tank 8 is fixed with locating lever 9, and the length of locating lever 9 is less than the degree of depth of constant head tank 8, when installing this lead screw to the car, utilizes constant head tank 8 and locating lever 9 can effectively increase the degree of accuracy that the lead screw was installed, avoids producing crooked, and the lead screw after aiming at does benefit to quick revolving of follow-up screw and revolves, and is comparatively laborsaving convenient.

Furthermore, the mounting plates 6 are symmetrically fixed on the outer wall of the spline 5, mounting holes are formed in the outer wall of the mounting plate 6, and screws penetrate through the mounting plates 6 with the mounting holes, so that the screw rod can be stably mounted on the automobile.

Further, an oil filling hole 4 is formed in the outer surface wall of the ball nut 3, the oil filling hole 4 is of a circular structure, lubricating oil can be supplemented through the oil filling hole 4, and the ball nut is practical.

Further, the outer surface wall of the screw body 1 is integrally formed as a threaded portion 2, the ball nut 3 rotates outside the screw body 1 through the threaded portion 2, and the ball nut 3 rotates outside the screw body 1, so that the rotational motion is converted into the linear motion, or the torque is converted into the axial repeated acting force.

The working principle and the using process of the utility model are as follows: the utility model discloses a when using, can be with this lead screw stable mounting on this car through the mounting panel 6 of seting up the mounting hole, wherein, when installing this lead screw to the car, utilize constant head tank 8 and locating lever 9 on the spline 5 can effectively increase the degree of accuracy of lead screw installation, avoid producing crooked, and the lead screw after aiming at does benefit to the quick of follow-up screw and revolves soon, it is comparatively laborsaving convenient, furthermore, when the spline 5 damages unable the use, the staff can pass the fastening bolt 7 of screw 12 down, then rotating spline 5 again, the connecting rod 10 of seting up external screw thread 11 follow thread groove 13 in screw-out can, can damage the change of spline 5, need not wholly to abandon, comparatively save resources.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a lead screw for car which characterized in that: including lead screw body (1), the externally mounted of lead screw body (1) has ball nut (3), and the both ends symmetry of lead screw body (1) installs spline (5), thread groove (13) have been seted up towards one side of lead screw body (1) in spline (5), lead screw body (1) is fixed with connecting rod (10) towards one side of spline (5), the exterior wall integrated into one piece of connecting rod (10) has external screw thread (11), and the exterior wall of connecting rod (10) is close to intermediate position department and has seted up screw (12), the exterior wall of spline (5) closes soon and is connected with fastening bolt (7), the tip of fastening bolt (7) closes soon and is connected to the inside of screw (12).

2. The screw for automobile according to claim 1, wherein: a positioning groove (8) is formed in one side, away from the screw rod body (1), of the spline (5), and a positioning rod (9) is fixed at the middle position of the bottom inside the positioning groove (8).

3. The screw for automobile according to claim 2, wherein: the length of the positioning rod (9) is smaller than the depth of the positioning groove (8).

4. The screw for automobile according to claim 1, wherein: the mounting plate (6) is symmetrically fixed on the outer surface wall of the spline (5), and mounting holes are formed in the outer surface wall of the mounting plate (6).

5. The screw for automobile according to claim 1, wherein: an oil filling hole (4) is formed in the outer surface wall of the ball nut (3), and the oil filling hole (4) is of a circular structure.

6. The screw for automobile according to claim 1, wherein: the outer wall of the screw body (1) is integrally formed into a threaded portion (2), and the ball nut (3) rotates outside the screw body (1) through the threaded portion (2).