CN112228447A

CN112228447A - Automobile steering pull rod structure

Info

Publication number: CN112228447A
Application number: CN202011106775.9A
Authority: CN
Inventors: 贾挺芬
Original assignee: Anhui Swake Auto Parts Co ltd
Current assignee: Anhui Swake Auto Parts Co ltd
Priority date: 2020-10-16
Filing date: 2020-10-16
Publication date: 2021-01-15
Anticipated expiration: 2040-10-16
Also published as: CN112228447B

Abstract

The invention relates to an automobile steering pull rod structure, which comprises a tie rod and ball hinge assemblies symmetrically arranged at two ends of the tie rod, wherein the tie rod is internally and hollow, each ball hinge assembly comprises a shell and a hinge ball, a mounting column extends from the shell, the two shells are detachably inserted into two ends of the tie rod through the mounting columns, a through groove communicating the interior of the shell and the interior of the tie rod is formed in each mounting column, an oil filling hole is formed in the tie rod, and a sealing plug is arranged in each oil filling hole through threads; when needs additional lubrication oil, take off the sealing plug, then add lubricating oil through the oil filler point, lubricating oil gets into in the casing from drag link and erection column, realizes simultaneously and stable additional lubrication oil, guarantees lubricated effect.

Description

Automobile steering pull rod structure

Technical Field

The invention relates to the technical field of automobile steering gears, in particular to an automobile steering pull rod structure.

Background

A steering gear for a motor vehicle is used to increase the force transmitted by the steering wheel to the steering gear and to change the direction of the force transmitted.

The steering pull rod is a main stressed part in an automobile steering gear, and the conventional steering pull rod comprises a tie rod and ball hinge assemblies fixed at two ends of the tie rod; during wheel steering, the ball joint assembly is used for changing the direction of force, and the tie rod is used for transmitting pulling force and pressure.

The above prior art solutions have the following drawbacks:

the ball hinge assembly mainly comprises a shell and a hinge ball, lubricating oil is adopted between the hinge ball and the shell for lubrication, the lubricating oil needs to be added periodically, the steering pull rod needs to be detached completely, and the new steering pull rod is selected to be replaced or the lubricating oil is added from a gap between the hinge ball and the shell, so that the maintenance cost is greatly increased in the former, and the lubricating oil adding difficulty is large in the latter due to the fact that the gap between the shell and the hinge ball is small.

Disclosure of Invention

In view of the defects in the prior art, one of the objectives of the present invention is to provide an automobile steering linkage structure, wherein an oil path is arranged inside a tie rod and ball hinge assembly, lubricating oil is pre-stored in the tie rod, and enters the ball hinge assembly through the oil path, so as to ensure the lubricating effect on the steering linkage.

The above object of the present invention is achieved by the following technical solutions:

an automobile steering pull rod structure comprises a cross pull rod and shells arranged at two ends of the cross pull rod, the cross pull rod is arranged in a hollow way, the shell is extended with an installation column which is detachably inserted in the transverse pull rod, a through groove which communicates the interior of the shell with the interior of the transverse pull rod is arranged in the installation column, the two ends of the transverse pull rod are sequentially provided with an extrusion plate, a sealing plate I and a sealing plate II from inside, a sliding rod is fixedly connected between the extrusion plate and the sealing plate II, the sealing plate is coaxially fixed inside the cross pull rod, the sliding rod penetrates through the first sealing plate, the extrusion plate is provided with an oil outlet aligned and communicated with the through groove, the first sealing plate is provided with a first hole, the second sealing plate is provided with a second hole, a supporting spring is arranged between the second sealing plates, an oil filling hole is formed in the tie rod and positioned between the first sealing plates, and a detachable sealing plug is installed in the oil filling hole; when the shell is separated from the tie rod, the first sealing plate and the second sealing plate are attached, and the first hole and the second hole are completely staggered.

Through adopting above-mentioned technical scheme, when needs when adding lubricating oil in complete steering linkage, under supporting spring's elasticity, make two back of the body movements of closing plate to respectively butt closing plate one, form the sealing layer between closing plate one and closing plate one, then add lubricating oil in to the tie rod through the switch sealing plug, at last with the erection column reinsertion tie rod internal fixation on the ball hinge subassembly, make the stripper plate simultaneously, slide bar and closing plate two remove, make lubricating oil receive thrust flow, lubricating oil in proper order passes through hole two, hole one, oil outlet and logical groove get into in the casing, the realization is simultaneously to the lubricated purpose of the ball hinge subassembly at steering linkage both ends.

The present invention in a preferred example may be further configured to: the transverse pull rod comprises a middle section pipe and side section pipes coaxially fixing two ends of the middle section pipe, and the diameter of each side section pipe is smaller than that of the middle section pipe.

Through adopting above-mentioned technical scheme, the diameter of other section pipe is less, reduces the hold up of other section intraductal fluid, guarantees the entering volume of lubricating oil in the casing to at steering linkage during operation, be detained in the lubricating oil of drag link and receive and rock and get into articulated ball assembly gradually, realize the purpose of continuously lubricating steering linkage.

The present invention in a preferred example may be further configured to: the mounting groove has been seted up at the radial both ends of erection column periphery, the caulking groove has been seted up at the radial both ends of drag link internal periphery, it is provided with the abaculus with the mounting groove grafting complex to slide in the caulking groove, just be provided with the thrust spring that supports the abaculus part and be fixed in the mounting groove in the caulking groove, the abaculus is fixed with towards thrust spring's one end and acts as go-between, the one end of acting as go-between runs through and stretches out the drag link.

By adopting the technical scheme, when the shell is installed on the tie rod, the embedded block is driven to be accommodated into the embedded groove through the pull wire, then the installation column is inserted into the side-section pipe, then the shifting block is loosened and the shell is slowly rotated until the embedded groove is aligned with the installation groove, and the thrust spring pushes the embedded block to partially enter the installation groove to complete the assembly of the steering pull rod; when the steering pull rod needs to be disassembled, the shifting block is driven to move relatively again, the embedded block is separated from the mounting groove, the two sealing plates are driven to move back to back by the supporting spring, the mounting column is pushed to be separated from the other section of pipe by the sliding rod and the extrusion plate, and the disassembling of the steering pull rod is completed while the sealing layers are formed in the tie rod.

The present invention in a preferred example may be further configured to: the outer side of the tie rod is provided with a slide way communicated between the embedded grooves, a pair of shifting blocks is embedded in the slide way, and one end of the stay wire extending out of the tie rod is respectively fixed on one shifting block.

Through adopting above-mentioned technical scheme, the cooperation of shifting block and slide, the drive that can be convenient is acted as go-between, realizes the purpose of control abaculus to avoid acting as go-between to retract in the caulking groove.

The present invention in a preferred example may be further configured to: sliding grooves are formed in the two radial sides of the inner periphery of the tie rod and extend along the axis direction of the tie rod, the sliding grooves are respectively communicated with an embedding groove, and blocking strips are fixed on the two radial opposite sides of the extrusion plate; when the shell is separated from the tie rod, the blocking strip is abutted against the embedded block and is fixed in the embedded groove.

Through adopting above-mentioned technical scheme, when the erection column breaks away from other section pipe, the stripper plate drives the removal of blend stop simultaneously, and the blend stop covers the caulking groove for the abaculus is located the caulking groove all the time, then when needs equipment casing and drag link, only need directly insert the erection column in other section pipe, the equipment of the steering linkage of being convenient for.

The present invention in a preferred example may be further configured to: the articulated ball is installed to the casing, just a plurality of balls are inlayed in the casing, ball and shells inner wall and articulated ball roll butt.

Through adopting above-mentioned technical scheme, the outside and the roll butt of hinge ball and shells inner wall of ball reduce the friction area when hinge ball rotates to form great space between hinge ball and shells inner wall, can save more lubricating oil in the space, have great clearance equally between the ball, make lubricating oil can the whole hinge ball of effectual cover, promoted lubricated effect, and reduced frictional force.

The present invention in a preferred example may be further configured to: the annular groove is coaxially arranged at one end, facing the shell, of the extrusion plate, and the sealing ring embedded in the annular groove is coaxially extended at the end of the mounting column.

Through adopting above-mentioned technical scheme, after casing and drag link equipment, the sealing ring inlays and locates the very big gap that has reduced between erection column and the stripper plate in the annular, and the effectual leakage of avoiding lubricating oil has guaranteed the lubricated effect to the steering linkage.

The present invention in a preferred example may be further configured to: the extrusion plate is coaxially provided with a groove in the periphery, and a sealing ring is coaxially sleeved outside the extrusion plate and embedded in the groove.

Through adopting above-mentioned technical scheme, at casing and drag link equipment back, the extrusion between sealing washer and the other section pipe inner wall is very big to have reduced the gap between stripper plate, blend stop and the other section pipe, and the effectual leakage of having avoided lubricating oil has guaranteed the lubricated effect to the steering linkage.

In summary, the invention includes at least one of the following beneficial technical effects:

1. the steering pull rod comprises a cross pull rod and a ball hinge assembly which can be disassembled, and the cross pull rod or the ball hinge assembly can be independently replaced, so that the cost of the steering pull rod is reduced;

2. when the steering tie rod is assembled, the purpose of adding lubricating oil into the two spherical hinge assemblies at the same time is realized;

3. a certain amount of lubricating oil can be retained in the tie rod, and when the steering tie rod works, the lubricating oil gradually enters the ball hinge assembly after being shaken, so that the aim of continuously adding the lubricating oil into the ball hinge assembly is fulfilled;

4. the ball hinge assembly and the tie rod are in a quick insertion structure, so that the steering tie rod can be conveniently disassembled and assembled.

Drawings

FIG. 1 is a schematic half-section view of an automotive tie rod arrangement;

FIG. 2 is an enlarged schematic view at A in FIG. 1;

FIG. 3 is a schematic diagram of a drive insert for use with a bypass tube.

In the figure, 1, a tie rod; 2. a middle section pipe; 21. an oil filler hole; 22. a sealing plug; 3. a bypass pipe; 31. caulking grooves; 311. an insert block; 312. a thrust spring; 313. a pull wire; 32. a slideway; 321. shifting blocks; 33. a chute; 4. a ball hinge assembly; 5. hinging the ball; 6. a housing; 61. mounting a column; 611. mounting grooves; 612. a through groove; 613. a seal ring; 7. a ball bearing; 8. a pressing plate; 81. blocking strips; 82. a groove; 83. a seal ring; 84. a ring groove; 85. an oil outlet hole; 86. a connecting rod; 9. a first sealing plate; 91. a first hole; 10. a second sealing plate; 101. a second hole; 11. a slide bar; 12. supporting the spring.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

As shown in fig. 1 and 2, an automobile steering linkage structure comprises a tie rod 1 and ball hinge assemblies 4 symmetrically installed at two ends of the tie rod 1, the tie rod 1 is hollow, each ball hinge assembly 4 comprises a shell 6 and a hinge ball 5, a mounting column 61 extends on each shell 6, the two shells 6 are detachably inserted into two ends of the tie rod 1 through the mounting columns 61, a through groove 612 communicating the inside of each shell 6 with the inside of the tie rod 1 is formed in each mounting column 61, an oil filling hole 21 is formed in the tie rod 1, and a sealing plug 22 is installed in each oil filling hole 21 through a thread; when lubricating oil needs to be added, the sealing plug 22 is taken down, then lubricating oil is added through the oil filling hole 21, and the lubricating oil enters the shell 6 from the tie rod 1 and the mounting column 61, so that the lubricating oil is added stably at the same time, and the lubricating effect is ensured.

The tie rod 1 comprises a middle section pipe 2 and side section pipes 3 coaxially arranged at two ends of the middle section pipe 2, the diameter of each side section pipe 3 is smaller than that of the middle section pipe 2, a first sealing plate 9 is coaxially fixed in each side section pipe 3, an extrusion plate 8 and a second sealing plate 10 are coaxially arranged at two sides of each sealing plate 9 respectively, the periphery of each second sealing plate 10 is attached to the inner wall of the middle section pipe 2, a supporting spring 12 is arranged between the two sealing plates 10, a fixed column extends from one end, opposite to each other, of each sealing plate 10, two ends of each supporting spring 12 are sleeved on the fixed columns, each supporting spring 12 tends to push the corresponding sealing plate 10 to move towards the corresponding sealing plate 9, a first hole 91 is circumferentially arranged on the corresponding sealing plate 9 at intervals, a second hole 101 is circumferentially arranged on the corresponding sealing plate 10, an oil outlet 85 is coaxially arranged at the center of the extrusion plate 8, and a sliding rod 11 coaxially penetrates through the corresponding sealing plate, one end of the sliding rod 11 extends into the oil outlet 85, connecting rods 86 are fixed between the inner wall of the oil outlet 85 and the sliding rod 11 at intervals in the circumferential direction, and the other end of the sliding rod 11 is fixed to the second sealing plate 10;

when the shell 6 is arranged on the tie rod 1, the elastic force of the supporting spring 12 enables the first sealing plate 9 to be attached to the second sealing plate 10, wherein the first hole 91 and the second hole 101 are completely staggered, the first sealing plate 9 and the second sealing plate 10 form sealing layers, the oil injection hole 21 on the tie rod 1 is arranged between the sealing layers, so that lubricating oil can be stably stored between the sealing layers in the tie rod 1, then the mounting column 61 of the shell 6 is inserted into the side section pipe 3 to push the extrusion plate 8, the sliding rod 11 enables the second sealing plate 10 to relatively move, so that the lubricating oil is pushed to flow, the lubricating oil sequentially enters the shell 6 through the second hole 101, the first hole 91, the oil outlet 85 and the through groove 612, wherein the diameter of the side section pipe 3 is small, the retention amount of oil in the side section pipe 3 is reduced, the entering amount of the lubricating oil in the shell 6 is ensured, and the purpose of injecting the lubricating oil into the shell 6 is completed while the ball hinge assembly 4 and the tie, and the ball joint assembly 4 or the tie rod 1 can be replaced independently, so that the maintenance cost is reduced.

As shown in fig. 3, a pair of mounting grooves 611 are formed in the periphery of the mounting post 61 of the housing 6, the mounting grooves 611 are respectively located at two radial ends of the mounting post 61, a pair of insertion grooves 31 are formed in the inner side of the side tube 3, an insertion block 311 and a thrust spring 312 are installed in the insertion groove 31, the thrust spring 312 has a tendency of pushing the insertion block 311 to move towards the axial direction of the side tube 3, a pull wire 313 is fixedly connected to one end of the insertion block 311 facing the thrust spring 312, one end of the pull wire 313 penetrates through and extends out of the side tube 3, a slide way 32 is formed in the outer side of the side tube 3, two ends of the slide way 32 are respectively communicated with the insertion groove 31, a pair of shifting blocks 321 is slidably installed in the slide way 32, and one end of each of the two pull wires 313 is;

when the shell 6 is installed on the tie rod 1, the shifting block 321 is driven to move relatively, the pull wire 313 drives the insert 311 to be accommodated in the insert groove 31, then the installation column 61 is inserted into the side-section pipe 3, then the shifting block 321 is released, the shell 6 is slowly rotated until the insert groove 31 is aligned with the installation groove 611, and the thrust spring 312 pushes the insert 311 to enter the installation groove 611, so that the assembly of the steering tie rod is completed; when the steering pull rod needs to be disassembled, the shifting block 321 is driven to move relatively again, the embedded block 311 is separated from the mounting groove 611, the two sealing plates 10 are driven to move back to back by the supporting spring 12, the mounting column 61 is pushed to be separated from the side-section pipe 3 through the sliding rod 11 and the extrusion plate 8, and the disassembling of the steering pull rod is completed while the sealing layer is formed in the tie rod 1.

Wherein, the inner wall of the side section pipe 3 is provided with a pair of sliding chutes 33, the sliding chutes 33 extend along the axial direction of the side section pipe 3, the two sliding chutes 33 are respectively communicated with an embedding groove 31, meanwhile, a baffle strip 81 is embedded in the sliding chutes 33 in a sliding way, and the baffle strip 81 is fixedly connected with the outer side of the extrusion plate 8; when the erection column 61 breaks away from other section pipe 3, the stripper plate 8 drives the removal of blend stop 81 simultaneously, and blend stop 81 covers caulking groove 31 for the abaculus 311 is located the caulking groove 31 all the time, then when needs equipment casing 6 and drag link 1, only need directly insert other section pipe 3 with erection column 61 in, the equipment of the steering linkage of being convenient for.

A ring groove 84 is coaxially formed in one side of the extrusion plate 8 facing the shell 6, a sealing ring 613 coaxially extends from one end of the mounting column 61 facing the extrusion plate 8, a groove 82 is coaxially formed in the peripheries of the extrusion plate 8 and the barrier strip 81, a sealing ring 83 is sleeved on the peripheries of the extrusion plate 8 and the barrier strip 81, and the sealing ring 83 is embedded in the groove 82;

after the housing 6 is assembled with the tie rod 1, the sealing ring 613 is embedded in the ring groove 84, and the sealing ring 83 and the inner wall of the other section pipe 3 are extruded, so that gaps among the extrusion plate 8, the barrier strips 81 and the other section pipe 3 and among the mounting posts 61 and the extrusion plate 8 are greatly reduced, leakage of lubricating oil is effectively avoided, and the lubricating effect of the tie rod is ensured.

Simultaneously, the ball hinge assembly 4 further comprises a hinge ball 5 arranged in the shell 6, a plurality of balls 7 are arranged in the shell 6 and between the hinge ball 5, the outer sides of the balls 7 are in rolling butt joint with the hinge ball 5 and the inner wall of the shell 6, the friction area when the hinge ball 5 rotates is reduced, a large gap is formed between the hinge ball 5 and the inner wall of the shell 6, more lubricating oil can be stored in the gap, a large gap is also formed between the balls 7, the lubricating oil can effectively cover the whole hinge ball 5, the lubricating effect is improved, and the friction force is reduced.

The implementation principle of the embodiment is as follows:

when lubricating oil needs to be added into the complete steering pull rod, firstly, the shifting block 321 is driven to move relatively, under the elastic force of the supporting spring 12, the sealing plate two 10 moves back and forth to respectively abut against the sealing plate one 9, the sealing plate one 9 and the sealing plate two 10 form a sealing layer, meanwhile, the embedding block 311 is separated from the mounting groove 611, the sliding rod 11 and the extrusion plate 8 push the mounting column 61 to be separated from the side-section pipe 3, so that the shell 6 and the tie rod 1 are separated, the purpose of independently replacing the ball hinge assembly 4 or the tie rod 1 is realized, the maintenance cost is reduced, then, the lubricating oil is added into the middle-section pipe 2 through the switch sealing plug 22, finally, the mounting column 61 on the ball hinge assembly 4 is inserted into the side-section pipe 3 again for fixing, the extrusion plate 8, the sliding rod 11 and the sealing plate two 10 move simultaneously, so that the lubricating oil is pushed to flow, and the lubricating oil sequentially enters the shell, the purpose of lubricating the ball joint assemblies 4 at the two ends of the steering pull rod is achieved.

The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.

Claims

1. The utility model provides an automobile steering pull rod structure, includes tie rod (1) and sets up in casing (6) at tie rod (1) both ends, its characterized in that: the oil-gas separation device is characterized in that the cross pull rod (1) is arranged in a hollow mode, a mounting column (61) detachably inserted in the cross pull rod (1) extends from the shell (6), a through groove (612) communicating the interior of the shell (6) with the interior of the cross pull rod (1) is formed in the mounting column (61), an extrusion plate (8), a sealing plate I (9) and a sealing plate II (10) are sequentially arranged at the two ends of the cross pull rod (1) from the inside, a sliding rod (11) is fixedly connected between the extrusion plate (8) and the sealing plate II (10), the sealing plate I (9) is coaxially fixed in the cross pull rod (1), the sliding rod (11) penetrates through the sealing plate I (9), an oil outlet (85) aligned and communicated with the through groove (612) is formed in the extrusion plate (8), a hole I (91) is formed in the sealing plate I (9), a hole II (101) is formed in the, a supporting spring (12) is arranged between the second sealing plates (10), an oil filling hole (21) is formed in the tie rod (1) and located between the first sealing plates (9), and a detachable sealing plug (22) is installed in the oil filling hole (21); when the shell (6) is separated from the tie rod (1), the first sealing plate (9) is attached to the second sealing plate (10), and the first hole (91) and the second hole (101) are completely staggered.

2. The steering link structure for vehicles according to claim 1, wherein: the transverse pull rod (1) comprises a middle section pipe (2) and side section pipes (3) which are coaxially and hermetically connected to the two ends of the middle section pipe (2), the diameter of each side section pipe (3) is smaller than that of the middle section pipe (2), and the mounting columns (61) are coaxially inserted into the side section pipes (3).

3. The steering link structure for vehicles according to claim 1, wherein: two mounting grooves (611) have been seted up along radial symmetry to erection column (61) periphery, two caulking grooves (31) have been seted up along radial symmetry to the inside wall at drag link (1) both ends, it is provided with in caulking groove (31) inserts (311) of pegging graft complex with mounting groove (611) to slide, just be provided with thrust spring (312) that support inserts (311) part is fixed in mounting groove (611) in caulking groove (31), one end that inserts (311) are towards thrust spring (312) is fixed with acting as go-between (313), the one end of acting as go-between (313) is run through and is stretched out drag link (1).

4. A steering tie rod structure for vehicles according to claim 3, wherein: the outer side of the transverse pull rod (1) is provided with a slide way (32) communicated between the embedded grooves (31), a pair of shifting blocks (321) is embedded in the slide way (32), and one end, extending out of the transverse pull rod (1), of the pull wire (313) is fixed on one shifting block (321) respectively.

5. A steering tie rod structure for vehicles according to claim 3, wherein: sliding grooves (33) are formed in the radial two sides of the inner periphery of the tie rod (1) and extend along the axis direction of the tie rod, the sliding grooves (33) are respectively communicated with an embedding groove (31), and blocking strips (81) are fixed on the radial two opposite sides of the extrusion plate (8); when the shell (6) is separated from the tie rod (1), the blocking strip (81) is abutted against the embedded block (311) and is fixed in the embedded groove (31).

6. The steering link structure for vehicles according to claim 1, wherein: articulated ball (5) are installed in casing (6), just casing (6) are embedded to be equipped with a plurality of ball (7), ball (7) and casing (6) inner wall and articulated ball (5) roll the butt.

7. The steering link structure for vehicles according to claim 1, wherein: annular groove (84) have coaxially seted up towards the one end of casing (6) in stripper plate (8), the tip coaxial extension of erection column (61) has sealing ring (613) of locating in annular groove (84) of inlaying.

8. The steering link structure for vehicles according to claim 1, wherein: the periphery of the extrusion plate (8) is coaxially provided with a groove (82), a sealing ring (83) is coaxially sleeved outside the extrusion plate (8), and the sealing ring (83) is embedded in the groove (82).