CN217649512U

CN217649512U - High-strength tie rod joint

Info

Publication number: CN217649512U
Application number: CN202221917726.8U
Authority: CN
Inventors: 林象
Original assignee: Shanghai Changte Forging Co ltd
Current assignee: Shanghai Changte Forging Co ltd
Priority date: 2022-07-23
Filing date: 2022-07-23
Publication date: 2022-10-25
Anticipated expiration: 2032-07-23

Abstract

The application discloses high strength drag link connects belongs to novel mechanical technical field, including drag link and the outer joint casing of screw grafting in drag link one end, drag link surface threaded connection has the lock nut who is located outer joint casing one side, outer joint casing surface fixed surface is connected with the ring board that colludes, the one end joint that the drag link was kept away from to the outer joint casing has the ball bowl, the inside grafting of ball bowl has the bulb round pin, bulb round pin end threaded connection has slotted nut under the surface, the slot has been seted up to the bottom of bulb round pin side, the bottom of bulb round pin is provided with the locating part, one side threaded connection that the drag link is close to the outer joint casing has supplementary piece of drawing. This high strength drag link connects through setting up the locating part, has effectively guaranteed that the bulb round pin firmly blocks between outer joint casing and wheel hub, sets up supplementary piece that draws at the outer wall of drag link simultaneously, has effectively reduced the screw thread wearing and tearing between drag link and the outer joint casing, has prolonged drag link life.

Description

High-strength tie rod joint

Technical Field

The application belongs to the technical field of novel machinery, especially, relate to a high strength drag link connects.

Background

The drag link and the tie rod are two main parts of a steering system of an automobile, the drag link is a rod connected with a steering gear draw arm and a steering knuckle left arm, wheels can be controlled after power of a steering gear is transmitted to the steering knuckle, and the tie rod is connected with the left steering arm and the right steering arm, so that the two wheels can be synchronized, and toe-in can be adjusted.

Because the tie rod in the tie rod assembly is connected with the tie rod joint through threads, and the ball head pin in the tie rod joint is inserted into the side surface of the hub and then limited through the cotter pin.

In the process of implementing the application, the inventor finds that at least the following problems exist in the technology: because the service environment and the service time of the automobile are different, the automobile is frequently steered and bumped in severe service environments, great abrasion is caused between the tie rod and the tie rod joint, and the service life of the tie rod assembly is shortened.

To this end, we propose a high strength tie rod joint to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The application aims to solve the problem that in the prior art, a tie rod joint is worn and damaged under a high-strength use condition and is short in service life, and the high-strength tie rod joint is provided.

In order to achieve the purpose, the following technical scheme is adopted in the application:

the utility model provides a high strength tie rod connects, includes tie rod and the outer joint casing of screw grafting in tie rod one end, tie rod surface threaded connection has the lock nut who is located outer joint casing one side, outer joint casing surface fixed connection has the ring board, the one end joint that the tie rod was kept away from to the outer joint casing has the ball bowl, the inside grafting of ball bowl has the bulb round pin, threaded connection has slotted nut under the bulb round pin surface, the slot has been seted up to the bottom of bulb round pin side, the bottom of bulb round pin is provided with the locating part, one side threaded connection that the tie rod is close to the outer joint casing has supplementary piece of drawing.

Through setting up the locating part in the bottom of bulb round pin, can through the displacement of locating part restriction bulb round pin, effectively guaranteed that the bulb round pin firmly blocks between outer joint casing and wheel hub, set up supplementary piece of drawing at the outer wall of drag link simultaneously, can help the drag link to stimulate outer joint casing and move, effectively reduced the screw thread wearing and tearing between drag link and the outer joint casing to this has guaranteed that whole drag link assembly can be under the use of high strength, increase of service life as far as possible.

Preferably, the top of the ball bowl is clamped with an end cover.

The end cover is arranged to cover the ball bowl, so that external dust can be effectively prevented from entering the ball bowl to corrode the ball head part of the ball head pin, the smooth surface of the ball head is ensured as far as possible, and the smoothness of a driver during steering is maintained.

Preferably, the limiting part comprises a clamping rod inserted in the slot and a clamping ring sleeved on the lower side of the surface of the ball pin, a clamping groove matched with the clamping rod is formed in the side surface of the inner wall of the clamping ring, and a limiting nut sleeved on the outer surface of the ball pin through threads is arranged below the clamping ring.

Through setting up the locating part, back in the fluting of kelly card income slotted nut, the snap ring can go into the draw-in groove with the kelly card, then limit nut will carry on spacingly to the motion of snap ring to this guarantees that the kelly firmly blocks in slotted nut's fluting, effectively avoids slotted nut to rotate.

Preferably, the clamping rod is formed by hinging three short rods.

Through setting the kelly to three articulated quarter butts, effectively avoided cotter atress position little easy cracked danger, the snap ring can help the kelly to undertake certain pressure, can prolong the life of quarter butt effectively.

Preferably, the auxiliary pulling piece comprises a positioning nut in threaded connection with the cross pull rod, a tensioning plate fixedly installed on one side, close to the outer joint shell, of the positioning nut and a screwing nut in threaded connection with the outer wall of the tensioning plate, and a hook plate is fixedly connected to one side, close to the outer joint shell, of the tensioning plate.

Through setting up supplementary piece that draws, the operator can rotate and drive the tensioning plate to suitable position instead of positioning nut, then the tensioning plate takes the board card of colluding on the board is colluded to the ring, can help the drag link to inside pulling outer joint casing, reduces the screw thread degree of wear between outer joint casing and the drag link, prolongs the life of drag link assembly.

Preferably, one end of the tensioning plate close to the outer joint shell is tilted outwards.

One end of the tensioning plate is arranged to be tilted outwards, so that the tensioning plate can be effectively prevented from influencing the movement of the outer joint, and the outer joint shell is effectively prevented from being influenced by external force when moving on the tie rod assembly.

Preferably, one side of the hook plate, which is close to the outer joint shell, is arranged in an arc shape.

One side of the hook plate close to the outer joint shell is set to be arc-shaped, so that the hook plate can be effectively tightly attached to the outer joint shell, the hook plate and the ring hook plate can be effectively ensured to be in tight contact, and the two conducting forces are more stable.

Preferably, the width of the clamping groove is consistent with the diameter size of the cross section of the clamping rod.

Through setting up the width of draw-in groove unanimous with the cross section diameter size of kelly, can guarantee effectively that the kelly card is back in the draw-in groove, the side of kelly can with the inner wall in close contact with of draw-in groove, guarantees that kelly self can not take place to rotate, makes the both ends of kelly firmly block in the fluting of slotted nut.

To sum up, the technical effect and the advantage of this application: this high strength tie rod joint sets up the locating part in the bottom of bulb round pin, can restrict the displacement of bulb round pin through the locating part, has effectively guaranteed that the bulb round pin firmly blocks between outer joint casing and wheel hub, sets up supplementary piece of drawing at the outer wall of tie rod simultaneously, can help the tie rod to stimulate outer joint casing and move, has effectively reduced the screw thread wearing and tearing between tie rod and the outer joint casing to this has guaranteed that whole tie rod assembly can be under high strength's use, increase of service life as far as possible.

Drawings

FIG. 1 is a schematic view of the overall structure of the present application;

FIG. 2 is a schematic view of a housing of an external joint according to the present application;

FIG. 3 is a schematic view of a ball stud and a clamping bar according to the present application;

FIG. 4 is a schematic view of the clamping rod structure of the present application;

fig. 5 is a schematic structural view of the auxiliary pulling member of the present application.

In the figure: 1. a tie rod; 2. locking the nut; 3. an outer joint housing; 31. a ring hook plate; 4. a ball bowl; 5. a ball stud; 51. inserting slots; 6. an end cap; 7. a slotted nut;

8. a limiting member; 81. a clamping rod; 82. a snap ring; 821. a card slot; 83. a limit nut;

9. an auxiliary pull member; 91. adjusting the position of the nut; 92. a tension plate; 921. hooking the plate; 93. and (5) screwing the nut.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments.

Referring to fig. 1-3, a high-strength tie rod joint, including tie rod 1 and the outer joint casing 3 of threaded connection in tie rod 1 one end, tie rod 1 surface threaded connection has the lock nut 2 that is located outer joint casing 3 one side, outer surface fixed connection of outer joint casing 3 has ring hook plate 31, the one end joint that outer joint casing 3 kept away from tie rod 1 has ball bowl 4, ball bowl 4's inside grafting has ball head round pin 5, ball head round pin 5 can rotate in ball bowl 4 inside, ball head round pin 5 surperficial lower extreme threaded connection has slotted nut 7, slotted nut 7's bottom is the annular and has seted up a plurality of flutings, slot 51 has been seted up to the bottom of ball head round pin 5 side, ball head round pin 5's bottom is provided with locating part 8, locating part 8 can cooperate the rotation of spacing slotted nut 7 with the bottom fluting of slotted nut 7, tie rod 1 is close to one side threaded connection of outer joint casing 3 has supplementary pull 9, supplementary pull 9 can cooperate supplementary tie rod 1 with ring hook plate 31 and stimulate outer joint casing 3.

The top joint of ball bowl 4 has end cover 6, and end cover 6 seals ball bowl 4, prevents effectively that the dust from influencing the rotation of bulb round pin 5.

Referring to fig. 2 to 4, the limiting member 8 includes a clamping rod 81 inserted into the insertion slot 51 and a clamping ring 82 sleeved on the lower side of the surface of the ball stud 5, a clamping slot 821 matched with the clamping rod 81 is formed in the side surface of the inner wall of the clamping ring 82, the clamping rod 81 can be clamped inside the clamping slot 821 after being bent, then the clamping ring 82 can limit the bending of the clamping rod 81, so that the end portion of the clamping rod 81 is clamped in a groove in the bottom of the slotted nut 7 to limit the slotted nut 7 to rotate, a limiting nut 83 screwed on the surface of the ball stud 5 is arranged below the clamping ring 82, the clamping rod 81 is formed by hinging three short rods, and the clamping rod 81 can be rotatably clamped in the groove of the slotted nut 7 after being inserted into the clamping slot 821.

The width of draw-in groove 821 is unanimous with the cross section diameter size of kelly 81 to this makes the both sides of kelly 81 can both with draw-in groove 821 inner wall contact, has effectively guaranteed that kelly 81's both sides all have the atress strong point, effectively avoids kelly 81 alone atress to lead to warping.

Referring to fig. 5, the auxiliary pulling member 9 includes a positioning nut 91 screwed on the tie rod 1, a tensioning plate 92 fixedly installed on one side of the positioning nut 91 close to the outer joint housing 3, and a tightening nut 93 screwed on the outer wall of the tensioning plate 92, wherein the tightening nut 92 is provided with a thread, the tightening nut 93 can be sleeved on the outer wall of the tensioning plate 92, when the tightening nut 93 rotates on the tensioning plate 92, the diameter of the inner wall of the tightening nut 93 is fixed, but the distance between the tensioning plates 92 gradually increases, so that the tightening nut 93 forces the tensioning plates 92 to approach each other in the rotating process, the tensioning plates 92 can approach each other, one side of the tensioning plate 92 close to the outer joint housing 3 is fixedly connected with a hook plate 921, the tightening plates 92 approaching each other can clamp the hook plate 921 on the side of the ring hook plate 31, and the tie rod 1 pulls the outer joint housing 3 through the tensioning plates 92, the hook plate 921 and the ring hook plate 31.

The one end that the tensioning plate 92 is close to outer joint casing 3 sets up to the outside perk, effectively avoids tensioning plate 92 to obstruct outer joint casing 3's position control.

The one side that is close to outer joint casing 3 of colluding board 921 is the arc setting, effectively guarantees to collude the side of board 921 and can paste completely on outer joint casing 3 to this makes the side that colludes board 921 and ring and colludes board 31 closely laminate, contains tie rod pulling force transmission stability.

The working principle is as follows: after the ball stud 5 is inserted into the ball bowl 4, the clamping rod 81 is inserted into the slot 51, then the clamping rod 81 is rotated, the two ends of the clamping rod 81 are clamped in the grooves at the bottoms of the slotted nuts 7, then the clamping rod 81 is clamped inside the clamping groove 821 of the clamping ring 82, then the limiting nut 83 rotates upwards, the clamping rod 81 is abutted against the clamping ring 82 through the limiting nut 83, so that the clamping rod 81 does not rotate any more, then the clamping rod 81 limits the rotation of the slotted nuts 7, the connection stability of the ball stud 5 and the wheel hub is effectively guaranteed, an operator can rotate the positioning nut 91 to drive the tensioning plate 92 to a proper position, then rotate the screwing nut 93, the screwing nut 93 can enable the tensioning plate 92 to be close to each other, then the tensioning plate 92 drives the hook plate 921 to be clamped on the side surface of the ring hook plate 31, the cross pull rod 1 can pull the outer joint shell 3 through the tensioning plate 92, the hook plate 921 and the ring hook plate 31, and the threads between the outer joint shell 3 and the cross pull rod 1 are guaranteed not to be worn quickly under high-strength work.

The above description is only for the preferred embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art should be considered to be within the scope of the present application, and all equivalent substitutions and changes according to the technical solutions and the inventive concepts of the present application should be covered by the scope of the present application.

Claims

1. The utility model provides a high strength drag link connects, includes drag link (1) and the outer joint casing (3) of screw grafting in drag link (1) one end, its characterized in that, drag link (1) surface threaded connection has lock nut (2) that are located outer joint casing (3) one side, outer joint casing (3) surface fixed connection has ring hook plate (31), the one end joint that drag link (1) was kept away from in outer joint casing (3) has ball bowl (4), the inside grafting of ball bowl (4) has ball round pin (5), ball round pin (5) surperficial lower extreme threaded connection has slotted nut (7), slot (51) have been seted up to the bottom of ball round pin (5) side, the bottom of ball round pin (5) is provided with locating part (8), one side threaded connection that drag link (1) is close to outer joint casing (3) has supplementary piece (9).

2. A high strength tie rod joint according to claim 1, wherein the top of the ball bowl (4) is snap fitted with an end cap (6).

3. The high-strength tie rod joint according to claim 1, wherein the limiting member (8) comprises a clamping rod (81) inserted into the slot (51) and a snap ring (82) sleeved on the lower side of the surface of the ball stud (5), a clamping groove (821) matched with the clamping rod (81) is formed in the side surface of the inner wall of the snap ring (82), and a limiting nut (83) in threaded fit with the outer surface of the ball stud (5) is arranged below the snap ring (82).

4. A high strength tie rod joint according to claim 3, wherein said seizing bar (81) is formed by three short bars hinged together.

5. The high-strength tie rod joint according to claim 1, wherein the auxiliary pulling member (9) comprises a positioning nut (91) screwed on the tie rod (1), a tensioning plate (92) fixedly installed on one side of the positioning nut (91) close to the outer joint shell (3), and a screwing nut (93) screwed on the outer wall of the tensioning plate (92), and one side of the tensioning plate (92) close to the outer joint shell (3) is fixedly connected with a hook plate (921).

6. A high strength tie rod joint according to claim 5, wherein the tension plate (92) is outwardly tilted near one end of the outer joint housing (3).

7. A high strength tie rod joint according to claim 5, wherein the side of the hook plate (921) near the outer joint housing (3) is arc shaped.

8. A high strength tie rod joint according to claim 3, wherein the width of the catch groove (821) corresponds to the cross-sectional diameter dimension of the catch rod (81).