An efficient installation device for toothed ring locking studs

Abstract

The present invention discloses an efficient installation device for a toothed ring locking stud, comprising: an inner sleeve and an outer sleeve; an inner thread that matches the outer thread of the stud is provided on the inner wall of the upper end of the inner sleeve; a press sleeve is slidably provided inside the inner sleeve; first sliders are provided on the outer walls on both sides of the press sleeve; a first slide groove that matches the first slider is provided on the inner sleeve; each first slider is slidably connected to the corresponding first slide groove and extends to the outside of the inner sleeve; the outer sleeve is threadedly sleeved on the outside of the inner sleeve; and the press sleeve is provided below the outer sleeve. The installation device of the present invention has a simple structure and is easy to operate. The toothed ring is pressed into the installation by moving the outer sleeve up and down along the inner sleeve, which can effectively reduce the risk of damage to the stud, thereby extending the service life of the stud and ensuring the installation strength.

Description

Technical Field

[0001] The invention relates to the technical field of stud bolt installation devices, and more particularly to a high-efficiency installation device for a toothed ring locking type stud bolt. Background Art

[0002] In the design of aerospace engine components, double-ended studs with toothed ring locking are often used to achieve direct fixation and connection of components. Due to the special structure of the toothed ring type double-ended stud, the installation process requires first tightening one end of the stud, and then embedding the toothed ring into the workpiece material to achieve locking. In traditional installation methods, special equipment is often used for installation, or embedding is performed by knocking. Installation using special equipment makes the installation process highly dependent on the equipment, is costly, and is not suitable for popularization and application. Installation by knocking is difficult to control the knocking force during installation, and uniform force cannot be guaranteed. This can easily cause large deviations in the installation or extrusion cracks, leading to repeated installation or even product scrapping, and also results in low installation efficiency.

[0003] Chinese invention patent publication number CN108188979A discloses an efficient installation device for a toothed ring locking stud. Specifically, the device comprises a trigger rod, a screw nut, and a support pressure ring, with the stud and toothed ring as peripheral components. The support pressure ring is sleeved onto the stud, with the lower end face of the support pressure ring contacting the upper end face of the toothed ring on the stud, while the upper end face of the support pressure ring contacts the lower end face of the screw nut. The screw nut and the stud are threaded together, and the screw nut is fixedly connected to the trigger rod. Circumferential rotation of the trigger rod causes the screw nut to apply positive pressure along the axial direction of the stud to the support pressure ring, which then directly transmits the pressure to the toothed ring. The present invention enables efficient installation of toothed ring locking studs, thereby improving installation quality and efficiency.

[0004] The technical solution disclosed in the above patent document is to rotate the toggle rod in the direction of tightening the stud, drive the spin-on nut to move downward along the stud, and after tightening the support ring, continue to turn the toggle rod until the toothed ring is pressed into the workpiece. During this process, it is necessary to twist the spin-on nut to move up and down along the stud, especially when pressing down the toothed ring, which can easily cause damage to the external thread of the stud, thereby reducing the life of the stud and affecting the installation strength. Summary of the Invention

[0005] In view of this, the present invention provides an efficient installation device for a toothed ring locking type stud bolt, the purpose of which is to solve the problems existing in the prior art.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0007] A high-efficiency installation device for a toothed ring locking stud, comprising: an inner sleeve and an outer sleeve; an inner thread matching the outer thread of the stud is provided on the inner wall of the upper end of the inner sleeve; a press sleeve is slidably provided inside the inner sleeve; first sliders are provided on the outer walls on both sides of the press sleeve; a first slide groove matching the first slider is provided on the inner sleeve; each first slider is slidably connected to the corresponding first slide groove and extends to the outside of the inner sleeve; the outer sleeve is threadedly sleeved on the outside of the inner sleeve; the press sleeve is provided below the outer sleeve.

[0008] Preferably, rotating rods are provided on the left and right outer walls of the outer sleeve.

[0009] Preferably, a guide sleeve is slidably provided inside the inner sleeve; the inner wall of the guide sleeve is provided with tooth grooves that are compatible with the outer teeth of the toothed ring; springs are provided on the left and right sides of the top of the guide sleeve; a fixed block is provided on the top of each spring; each fixed block is fixedly connected to the outer wall of the press sleeve.

[0010] Preferably, a second sliding block is provided on the left and right outer walls of the guide sleeve; correspondingly, a second sliding groove adapted to the second sliding block is provided on the inner wall of the inner sleeve.

[0011] Preferably, a gasket is provided at the bottom end of the inner sleeve.

[0012] The present invention has achieved the following technical effects compared with the prior art: when in use, the present invention is threadedly connected to the stud by the inner sleeve, so that the bottom end of the pressing sleeve abuts the top end of the toothed ring, the outer sleeve is rotated, and the outer sleeve moves down along the inner sleeve. After the bottom end of the outer sleeve contacts the top end of the first slider, the outer sleeve continues to be rotated, and the outer sleeve continues to move down, driving the pressing sleeve to move downward, and the pressing sleeve pushes the toothed ring to move downward until the toothed ring is completely pressed into the workpiece. During this process, the lower end of the inner sleeve can be held by hand to reduce the force on the stud. The entire device has a simple structure and is easy to operate. The toothed ring is pressed into and installed by moving the outer sleeve up and down along the inner sleeve, which can effectively reduce the risk of damage to the stud, thereby extending the service life of the stud and ensuring the installation strength. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a front view of a high-efficiency installation device for a toothed ring locking type stud bolt of the present invention;

[0014] Figure 2 A cross-sectional view of a high-efficiency installation device for a toothed ring locking stud bolt according to the present invention;

[0015] In the figure: 1. Inner sleeve; 2. Outer sleeve; 3. Stud; 4. Press sleeve; 5. First slider; 6. First slide groove; 7. Rotating rod; 8. Guide sleeve; 9. Toothed ring; 10. Spring; 11. Fixed block; 12. Second slider; 13. Second slide groove; 14. Washer; 15. Anti-slip protrusion. DETAILED DESCRIPTION

[0016] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0017] Example

[0018] Reference Figure 1-2 As shown, the present invention discloses an efficient installation device for a toothed ring locking stud, comprising: an inner sleeve 1 and an outer sleeve 2; an inner thread is provided on the inner wall of the upper end of the inner sleeve 1, which is compatible with the outer thread of the stud 3. When in use, the inner sleeve 1 is threadedly connected to the stud 3 through the matching inner and outer threads; a pressing sleeve 4 is slidingly provided inside the inner sleeve 1; the inner diameter of the pressing sleeve 4 is smaller than the outer diameter of the toothed ring 9 and larger than the inner diameter of the toothed ring 9, so as to facilitate pushing the toothed ring 9 to move; first sliders 5 are provided on the outer walls on both sides of the pressing sleeve 4; a first sliding groove 6 compatible with the first sliding groove 5 is opened on the inner sleeve 1; each first sliding groove 6 is slidably connected to the corresponding first sliding groove 6 and extends to the outside of the inner sleeve 1; the outer sleeve 2 is threadedly sleeved on the outside of the inner sleeve 1; the pressing sleeve 4 is arranged below the outer sleeve 2.

[0019] When in use, after one end of the stud 3 is screwed into the workpiece to be installed, the inner sleeve 1 is threadedly connected to the other end of the stud 3 through the internal and external threads, so that the bottom end of the pressing sleeve 4 abuts against the top of the toothed ring 9, and the outer sleeve 2 is rotated. The outer sleeve 2 moves down along the inner sleeve 1. After the bottom end of the outer sleeve 2 contacts the top of the first slider 5, the outer sleeve 2 continues to rotate. The outer sleeve 2 continues to move downward, driving the pressing sleeve 4 to move downward, and the pressing sleeve 4 pushes the toothed ring 9 to move downward until the toothed ring 9 is completely pressed into the workpiece. During this process, the lower end of the inner sleeve 1 can be held by hand to reduce the force on the stud 3. The whole device has a simple structure and is easy to operate. The toothed ring is pressed into and installed by moving the outer sleeve up and down along the inner sleeve, which can effectively reduce the risk of damage to the stud, thereby extending the service life of the stud and ensuring the installation strength.

[0020] In this embodiment, rotating rods 7 are provided on the outer walls on both sides of the outer sleeve 2. When in use, the rotating rods 7 are held by hand and rotated, thereby driving the outer sleeve 2 to rotate, and then the outer sleeve 2 moves up and down along the inner sleeve, which makes the operation more convenient.

[0021] In this embodiment, a guide sleeve 8 is slidingly provided inside the inner sleeve 1; a tooth groove is provided on the inner wall of the guide sleeve 8 that is adapted to the outer teeth of the toothed ring 9; the guide sleeve is slidably connected to the outside of the toothed ring 9 through the tooth groove; springs 10 are provided on the left and right sides of the top of the guide sleeve 8; a fixed block 11 is provided on the top of each spring 10; each fixed block 11 is fixedly connected to the outer wall of the pressing sleeve 4; each fixed block 11 is located below the first slide groove 6; when in use, the guide sleeve 8 is sleeved on the outside of the toothed ring 9, and the bottom end of the guide sleeve 8 contacts the surface of the workpiece. When the toothed ring 9 moves downward, the toothed ring 9 and the guide sleeve 8 slide relative to each other, thereby providing a certain guiding effect for the toothed ring 9 without affecting the normal pressing of the toothed ring 9, avoiding deviation during the pressing process of the toothed ring, and thus ensuring the stability of the pressing of the toothed ring.

[0022] In this embodiment, a second slider 12 is provided on the outer walls of the left and right sides of the guide sleeve 8; correspondingly, a second slide groove 13 adapted to the second slider 12 is provided on the inner wall of the inner sleeve 1; the guide sleeve 8 is slidably connected to the inner wall of the inner sleeve 1 through the cooperation of the second slider 12 and the second slide groove 13, which not only improves the movement stability of the guide sleeve, but also plays a limiting role.

[0023] In this embodiment, a washer 14 is provided at the bottom end of the inner sleeve 1 to play a protective role and prevent the inner sleeve from scratching the surface of the workpiece during the installation process.

[0024] In this embodiment, an anti-slip protrusion 15 is provided on the outer wall of the lower end of the inner sleeve 1 to prevent slipping and facilitate the user to hold the lower end of the inner sleeve.

[0025] The installation method of the efficient installation device of the above-mentioned toothed ring locking type stud is as follows: after one end of the stud 3 is screwed into the workpiece to be installed, the inner sleeve 1 is threadedly connected to the other end of the stud 3 through the matching internal and external threads, so that the bottom end of the pressing sleeve 4 abuts against the top of the toothed ring 9, hold the rotating rod 7 by hand and rotate it to drive the outer sleeve 2 to rotate, so that the outer sleeve 2 moves down along the inner sleeve 1, and after the bottom end of the outer sleeve 2 contacts the top of the first slider 5, continue to rotate the outer sleeve 2, and the outer sleeve 2 continues to move downward, driving the pressing sleeve 4 to move downward, and the pressing sleeve 4 pushes the toothed ring 9 to move downward until the toothed ring 9 is completely pressed into the workpiece.

[0026] The above description is merely a preferred embodiment of the present invention and does not limit the technical scope of the present invention. Therefore, any minor modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. An efficient installation device for a toothed ring locking stud, characterized in that: include: An inner sleeve (1) and an outer sleeve (2); an inner thread matching the outer thread of the stud (3) is provided on the inner wall of the upper end of the inner sleeve (1); a pressing sleeve (4) is slidably provided inside the inner sleeve (1); first sliders (5) are provided on the outer walls on both sides of the pressing sleeve (4); a first sliding groove (6) matching the first sliding groove (5) is provided on the inner sleeve (1); each first sliding groove (5) is slidably connected to the corresponding first sliding groove (6) and extends to the outside of the inner sleeve (1); the outer sleeve (2) is threadedly sleeved on the outside of the inner sleeve (1); the pressing sleeve (4) is provided below the outer sleeve (2).

2. The efficient installation device for a toothed ring locking stud according to claim 1, characterized in that: Rotating rods (7) are provided on the outer walls on the left and right sides of the outer sleeve (2).

3. The efficient installation device for a toothed ring locking stud according to claim 1, characterized in that: A guide sleeve (8) is slidably provided inside the inner sleeve (1); a tooth groove adapted to the outer teeth of the toothed ring (9) is provided on the inner wall of the guide sleeve (8); springs (10) are provided on the left and right sides of the top of the guide sleeve (8); a fixing block (11) is provided on the top of each spring (10); each fixing block (11) is fixedly connected to the outer wall of the pressing sleeve (4).

4. The efficient installation device for a toothed ring locking stud according to claim 3, characterized in that: The left and right outer walls of the guide sleeve (8) are both provided with second sliding blocks (12); correspondingly, the inner wall of the inner sleeve (1) is provided with a second sliding groove (13) adapted to the second sliding blocks (12).

5. The efficient installation device for a toothed ring locking stud according to claim 1, characterized in that: A washer (14) is provided at the bottom end of the inner sleeve (1).

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