CN111017018B - Horizontal joint assembly - Google Patents
Horizontal joint assembly Download PDFInfo
- Publication number
- CN111017018B CN111017018B CN201911282604.9A CN201911282604A CN111017018B CN 111017018 B CN111017018 B CN 111017018B CN 201911282604 A CN201911282604 A CN 201911282604A CN 111017018 B CN111017018 B CN 111017018B
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- Prior art keywords
- ball
- clamping nut
- rod
- pull rod
- pin
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D7/00—Steering linkage; Stub axles or their mountings
- B62D7/18—Steering knuckles; King pins
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D15/00—Steering not otherwise provided for
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D7/00—Steering linkage; Stub axles or their mountings
- B62D7/20—Links, e.g. track rods
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Steering-Linkage Mechanisms And Four-Wheel Steering (AREA)
Abstract
The invention relates to a transverse joint assembly which comprises a pull rod, a ball pin and a ball seat device for supporting the ball pin, wherein the ball pin comprises a ball head and a pin rod body, a containing cavity for containing the ball seat device is arranged in the pull rod, and an opening is formed in the side wall of the pull rod; the ball seat device comprises the self-adaptation seat of two centre gripping bulbs, the seat that adapts to separately includes the trigger bar respectively, clamping nut, torsional spring and ball bowl, the trigger bar passes ball bowl endwise slip and butt joint bulb, the nonrotatable ball bowl endwise slip of trigger bar, clamping nut and pull rod threaded connection and clamping nut connect the trigger bar, clamping nut all can the detached circumference fixed clamping nut when the trigger bar is in each axial position, pull rod and clamping nut are connected respectively at the torsional spring both ends and the direction of action makes clamping nut to rotatory to being close to the ball round pin direction, ball bowl butt joint clamping nut and nonrotatable edge hold the cavity and slide, two ball bowls centre gripping bulbs, both can reduce the clearance and avoid the wheel swing can not influence the wheel toe-in again.
Description
Technical Field
The invention relates to the technical field of automobile steering systems, in particular to a transverse joint assembly.
Background
In order to ensure that the automobile steering wheel can immediately return to a straight-line driving position after external force disappears when the automobile steering wheel accidentally deflects under the action of external force (such as stone), the steering wheel has an automatic aligning function, the automatic aligning function is realized by adjusting positioning parameters of the steering wheel, and the toe-in of the front wheel is one of the positioning parameters.
The toe-in of the front wheel refers to the distance difference between the front end surface and the rear end surface of the front wheel in the transverse direction of the automobile, and the toe-in of the front wheel is improperly arranged, so that the automatic aligning function of the automobile is easily abnormal, the eccentric wear of the front tire is caused, and the service life of the tire is shortened. The existing front wheel toe-in is gradually changed due to the clearance generated by the abrasion of the steering tie rod horizontal joint assembly, and the automatic alignment is influenced.
In addition, the clearance is increased along with the increase of the abrasion, so that the front wheels have certain degree of freedom, the vehicle is easy to generate angular vibration of left and right swinging when running in a straight line at high speed or turning, and the safe running is seriously influenced, therefore, the transverse joint assembly which can reduce the clearance and does not influence the toe-in of the wheel is expected to be designed.
Disclosure of Invention
In order to overcome the technical defects in the prior art, the invention provides a transverse joint assembly which can reduce the clearance to avoid the swing of wheels and cannot influence the toe-in of the wheels.
The technical solution adopted by the invention is as follows: a transverse joint assembly comprises a pull rod, a ball pin and a ball seat device for supporting the ball pin, wherein the ball pin comprises a ball head and a pin rod body, an accommodating cavity for accommodating the ball seat device is formed in the pull rod, and an opening which is used for extending out of the pin rod body and limiting the swing angle of the ball pin is formed in the side wall of the pull rod; the ball seat device comprises the self-adaptation seat of two centre gripping bulbs, and the seat that adapts to separately includes trigger bar, clamping nut, torsional spring and ball bowl respectively, the trigger bar passes ball bowl endwise slip and apical grafting bulb, the nonrotatable ball bowl endwise slip of trigger bar edge, clamping nut and pull rod threaded connection and clamping nut connect the trigger bar, the equal detachable circumference fixation clamp nut of trigger bar when the trigger bar is in each axial position, pull rod and clamping nut and effect direction make clamping nut rotatory to being close to ball round pin direction are connected respectively to the torsional spring both ends, ball bowl apical grafting clamping nut and nonrotatable edge hold the cavity and slide, two ball bowls centre gripping bulbs.
As a further improvement of the invention, the clamping nut is in threaded connection with the accommodating chamber, spiral stepped lines are arranged in an inner hole of the clamping nut, the spiral stepped lines are formed by connecting a plurality of axial grooves and circumferential grooves in series, the spiral stepped lines have a spiral direction opposite to the spiral direction of the threads on the periphery of the clamping nut, the trigger rod slides along the axial grooves and the circumferential grooves, the clamping nut rotates under the action of a torsion spring when the trigger rod slides along the circumferential grooves, and the trigger rod circumferentially fixes the clamping nut when the trigger rod is positioned in the axial grooves.
As a further improvement of the invention, the clamping nut comprises a nut body and a control sleeve, the control sleeve is fixedly arranged in the nut body, and the spiral stepped line is positioned in the control sleeve.
As a further improvement of the invention, the control sleeve is made of engineering plastics.
As a further improvement of the invention, the trigger rod comprises a sliding rod body and a spring plate fixedly arranged at the tail end of the sliding rod body, the sliding rod body penetrates through the ball bowl to axially slide and is abutted against the ball head, the spring plate slides along the axial groove and the circumferential groove, the clamping nut rotates under the action of the torsion spring when the spring plate slides along the circumferential groove, and the spring plate circumferentially fixes the clamping nut when the spring plate is positioned in the axial groove.
As a further improvement of the invention, a rod body guide hole is arranged at the axis of the ball bowl, the cross section of the rod body guide hole is regular hexagon, the cross section of the sliding rod body is the same as that of the rod body guide hole, and the sliding rod body slides along the rod body guide hole and is abutted against the ball head.
As a further improvement of the invention, a screw plug is arranged at the tail end of the pull rod, the screw plug is inserted into the accommodating chamber and is in threaded connection with the pull rod, an external thread is arranged on the outer peripheral surface of the screw plug, and an internal thread is arranged on the inner wall surface of the accommodating chamber at the tail end of the pull rod.
As a further improvement of the invention, a threaded section matched with the clamping nut is arranged on the inner side of the side wall of the pull rod at the opening, a sliding guide section is arranged between the threaded section and the opening, the cross section of the sliding guide section is square, and the ball bowl is in sliding fit with the sliding guide section.
As a further improvement of the invention, the thread pitch of the outer periphery of the clamping nut is 1-3 times of the thread pitch of the spiral stepped line.
As a further improvement of the present invention, the ball bowl includes a cone portion contacting with the ball head and a cylinder portion for inserting into the clamping nut, the cone portion is provided with a matching surface contacting with a spherical surface of the ball head, the cylinder portion is connected with the cone portion and coaxial with the cone portion, and an end portion of the clamping nut abuts against the cone portion.
The invention has the beneficial effects that:
1: the side wall of the pull rod is provided with an opening which allows the pin rod body to extend out and is used for limiting the swing angle of the ball pin, so that the pin shaft is prevented from swinging without limit, and the steering angle is limited.
2: the trigger rod penetrates through the ball bowl to axially slide and is abutted with the ball head, the trigger rod can not rotate and axially slide along the ball bowl, the clamping nut is in threaded connection with the pull rod, the clamping nut is connected with the trigger rod, the clamping nut is fixed in the circumferential direction in which the trigger rod can be separated when the trigger rod is positioned at each axial position, two ends of the torsion spring are respectively connected with the pull rod and the clamping nut, the action direction enables the clamping nut to rotate towards the direction close to the ball pin, the ball bowl is abutted with the clamping nut and can not rotate and slides along the containing chamber, because the trigger rod is only pressed by the elastic sheet, the friction between the trigger rod and the ball pin can be ignored, the trigger rod is used as a reference for marking the abrasion loss of the ball bowl and the ball pin, the trigger rod can slide a little relatively after abrasion, so that the clamping nut can rotate by different angles at different axial positions, thereby automatically compensating the abrasion loss of the ball bowl, reducing the clearance, avoiding the swing of the wheel and not influencing the toe-in of the wheel.
Drawings
FIG. 1 is a schematic view of the structure of the present invention.
Fig. 2 is a schematic view of a ball pin structure.
Fig. 3 is a schematic view of the clamping nut.
FIG. 4 is a schematic sectional view taken along line A-A in FIG. 1.
Fig. 5 is a schematic structural view of the sliding guide section.
Fig. 6 is a schematic structural view of the trigger lever.
Description of reference numerals:
1. a pull rod; 11. an opening; 12. a threaded segment; 13. a sliding guide section;
2. a ball pin; 21. a ball head; 22. a pin body;
31. a trigger lever; 311. a sliding rod body; 312. a spring plate; 32. clamping the nut; 321. a helical stepped line; 3211. an axial slot; 3212. a circumferential groove; 322. a nut body; 323. a control sleeve; 33. a torsion spring; 34. a ball bowl; 341. a cone portion; 3411. a mating surface; 342. a cylindrical portion; 343. a rod body guide hole;
4. and (4) a screw plug.
Detailed Description
The invention will be further described with reference to the accompanying drawings in which:
as shown in fig. 1 to 6, the present embodiment provides a cross joint assembly, which includes a pull rod 1, a ball pin 2 and a ball seat device for supporting the ball pin 2, wherein the ball pin 2 includes a ball head 21 and a pin rod body 22, a receiving chamber for receiving the ball seat device is provided in the pull rod 1, and an opening 11 for extending the pin rod body 22 and defining a swing angle of the ball pin 2 is provided on a side wall of the pull rod 1.
In this embodiment, the ball seat device is composed of two adaptive seats for holding the ball 21, each adaptive seat includes a trigger rod 31, a clamping nut 32, a torsion spring 33 and a ball bowl 34, the trigger rod 31 axially slides through the ball bowl 34 and abuts against the ball 21, the trigger rod 31 non-rotatably axially slides along the ball bowl 34, that is, the trigger rod 31 and the ball bowl 34 do not rotate relatively, the clamping nut 32 is in threaded connection with the pull rod 1 and the clamping nut 32 is connected with the trigger rod 31, the clamping nut 32 is circumferentially fixed by the trigger rod 31 being detachable at each axial position of the trigger rod 31, when the trigger rod 31 is at different axial positions, the clamping nut 32 is rotated to different angles and fixed when the trigger rod 31 is not axially moved, the rotation torque of the clamping nut 32 comes from the torsion spring 33, both ends of the torsion spring 33 are respectively connected with the pull rod 1 and the clamping nut 32 and act to rotate the clamping nut 32 in a direction close to the ball pin 2, the ball bowls 34 abut against the clamping nuts 32 and slide along the containing chambers in a non-rotatable manner, the two ball bowls 34 clamp the ball heads 21, the ball bowls 34 comprise conical parts 341 contacting with the ball heads 21 and column parts 342 used for being inserted into the clamping nuts 32, the conical parts 341 are provided with matching surfaces 3411 contacting with the spherical surfaces of the ball heads 21, the column parts 342 are connected with the conical parts 341 and are coaxial with the conical parts 341, and the end parts of the clamping nuts 32 abut against the conical parts 341.
When the ball bowl 34 and the ball pin 2 are worn, the ball head 21 must push the trigger rod 31 to move axially for a certain distance, the wear degrees of the ball bowls 34 on the two sides of the ball head 21 are different, the axial movement of the trigger rod 31 is correspondingly different, the rotating angles of the clamping nut 32 are also different, the ball bowl 34 is pushed axially or rotated by the clamping nut 32, the wear amounts of the ball bowl 34 and the ball head 21 are further compensated, the adaptive compensation mode compensates according to the actual wear conditions, the gap between the ball head 21 and the ball bowl 34 is eliminated from time to avoid wheel swinging, and the change of the toe-in of-wheel is avoided by ensuring the relative position of the ball head 21.
Wherein, the clamping nut 32 comprises a nut body 322 and a control sleeve 323, the control sleeve 323 is fixedly arranged in the nut body 322, the spiral stepped line 321 is positioned in the control sleeve 323, the spiral stepped line 321 is formed by connecting a plurality of axial grooves 3211 and circumferential grooves 3212 which are connected end to end in series, because the spiral stepped line 321 is difficult to cut, the control sleeve 323 is preferably cast by engineering plastics, of course, steel materials can be cast, then the control sleeve 323 is fixedly arranged with the nut body 322, the spiral stepped line 321 is opposite to the peripheral thread direction of the clamping nut 32, and the peripheral thread pitch of the clamping nut 32 is 1-3 times of the thread pitch of the spiral stepped line 321, because the ball head 21 and the ball bowl 34 can be worn at the same time, the trigger rod 31 can only sense the wear of the ball bowl 34, and the peripheral thread pitch larger than the thread pitch of the spiral stepped line 321 means that the compensation speed of the clamping nut 32 is larger than the wear speed of the ball bowl 34, the extra portion is compensated for wear of the ball 21, for example: if the wear rate of the ball 21 is 1.2 and the wear rate of the ball bowl 34 is 1, the thread pitch of the outer peripheral thread is 2.2 times of the thread pitch 321 of the spiral stepped line, the trigger rod 31 slides along the axial groove 3211 and the circumferential groove 3212, the clamping nut 32 rotates under the action of the torsion spring 33 when the trigger rod 31 slides along the circumferential groove 3212, and the clamping nut 32 is circumferentially fixed by the trigger rod 31 when the trigger rod 31 is located in the axial groove 3211.
Specifically, the trigger rod 31 includes a sliding rod 311 and a spring 312 fixedly mounted at the end of the sliding rod 311, the sliding rod 311 axially slides through the ball bowl 34 and abuts against the ball 21, the spring 312 slides along the axial groove 3211 and slides along the circumferential groove 3212, the clamping nut 32 rotates under the action of the torsion spring 33 when the spring 312 slides along the circumferential groove 3212, and the clamping nut 32 is circumferentially fixed by the spring 312 when the spring 312 is located in the axial groove 3211.
In this embodiment, a threaded section 12 matched with the clamping nut 32 is arranged on the inner side of the side wall of the pull rod 1 at the opening 11, a sliding guide section 13 is arranged between the threaded section 12 and the opening 11, the cross section of the sliding guide section 13 is square, the ball bowl 34 is in sliding fit with the sliding guide section 13, so that the ball bowl 34 is ensured not to rotate, a rod body guide hole 343 is arranged at the axis of the ball bowl 34, the cross section of the rod body guide hole 343 is regular hexagon, the cross section of the sliding rod body 311 is the same as that of the rod body guide hole 343, the sliding rod body 311 slides along the rod body guide hole 343 and abuts against the ball head 21, as other selectable schemes, the rod body guide hole 343 may be square or other shapes which are not circular, and the purpose of ensuring that the sliding rod body 311 does not rotate.
In this embodiment, the end of the pull rod 1 is provided with a plug screw 4, the plug screw 4 is inserted into the accommodating chamber and is in threaded connection with the pull rod 1, the outer peripheral surface of the plug screw 4 is provided with external threads, and the inner wall surface of the accommodating chamber at the end of the pull rod 1 is provided with internal threads for blocking the accommodating chamber and preventing the mechanism from being worn due to sand entering.
While there have been shown and described what are at present considered the fundamental principles and essential features of the invention and its advantages, it will be understood by those skilled in the art that the invention is not limited by the embodiments described above, which are merely illustrative of the principles of the invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the invention as defined by the appended claims and their equivalents.
Claims (9)
1. Horizontal joint assembly, its characterized in that: the ball seat device comprises a pull rod, a ball pin and a ball seat device for supporting the ball pin, wherein the ball pin comprises a ball head and a pin rod body, an accommodating cavity for accommodating the ball seat device is arranged in the pull rod, and an opening which is used for extending out of the pin rod body and limiting the swing angle of the ball pin is formed in the side wall of the pull rod; the ball seat device comprises self-adaptive seats of two clamping ball heads, the self-adaptive seats respectively comprise a trigger rod, a clamping nut, a torsional spring and a ball bowl, the trigger rod penetrates through the ball bowl in the axial direction and abuts against the ball head, the trigger rod can axially slide along the ball bowl in a non-rotatable mode, the clamping nut is connected with a pull rod in a threaded connection mode and is connected with the trigger rod, the trigger rod can be circumferentially fixed and clamped when the trigger rod is located at each axial position, the two ends of the torsional spring are respectively connected with the pull rod and the clamping nut, the action direction enables the clamping nut to rotate towards the direction close to the ball pin, the ball bowl abuts against the clamping nut and can not rotatably slide along a containing cavity, the two ball bowls clamp the ball head, the clamping nut is in a threaded connection mode with the containing cavity, spiral stepped grains are arranged in the inner hole of the clamping nut, and the spiral stepped grains are formed by serially connecting a plurality of axial grooves and circumferential grooves which are connected end to end, the heliciform ladder line revolves to and is opposite with the screw thread of clamp nut periphery soon, the trigger bar slides along axial groove and circumference groove, clamp nut rotates under the torsional spring effect when the trigger bar slides along the circumference groove, the trigger bar circumference is fixed clamp nut when being located the axial groove.
2. The transverse joint assembly according to claim 1, wherein: the clamping nut comprises a nut body and a control sleeve, the control sleeve is fixedly arranged in the nut body, and the spiral stepped grains are located in the control sleeve.
3. The transverse joint assembly according to claim 2, wherein: the control sleeve is made of engineering plastics.
4. The transverse joint assembly according to claim 1, wherein: the trigger bar comprises a sliding bar body and an elastic sheet fixedly arranged at the tail end of the sliding bar body, the sliding bar body penetrates through the ball bowl to axially slide and is abutted to the ball head, the elastic sheet slides along the axial groove and the circumferential groove, the clamping nut rotates under the action of the torsion spring when the elastic sheet slides along the circumferential groove, and the clamping nut is circumferentially fixed by the elastic sheet when the elastic sheet is positioned in the axial groove.
5. The transverse joint assembly according to claim 4, wherein: the ball bowl is characterized in that a rod body guide hole is formed in the axis of the ball bowl, the cross section of the rod body guide hole is a regular hexagon, the cross section of the sliding rod body is the same as that of the rod body guide hole, and the sliding rod body slides along the rod body guide hole and abuts against the ball head.
6. The transverse joint assembly according to claim 1, wherein: the tail end of the pull rod is provided with a plug screw, the plug screw is inserted into the containing cavity and is in threaded connection with the pull rod, the outer peripheral surface of the plug screw is provided with external threads, and the inner wall surface of the containing cavity at the tail end of the pull rod is provided with internal threads.
7. The transverse joint assembly according to claim 1, wherein: the inner side of the side wall of the pull rod located at the opening is provided with a thread section matched with the clamping nut, a sliding guide section is arranged between the thread section and the opening, the cross section of the sliding guide section is square, and the ball bowl is in sliding fit with the sliding guide section.
8. The transverse joint assembly according to claim 1, wherein: the thread pitch of the peripheral threads of the clamping nut is 1-3 times of that of the spiral stepped lines.
9. The transverse joint assembly according to claim 1, wherein: the ball bowl comprises a cone part in contact with the ball head and a cylinder part used for being inserted into the clamping nut, the cone part is provided with a matching surface in contact with the spherical surface of the ball head, the cylinder part is connected with the cone part and coaxial with the cone part, and the end part of the clamping nut is abutted to the cone part.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201911282604.9A CN111017018B (en) | 2019-12-13 | 2019-12-13 | Horizontal joint assembly |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201911282604.9A CN111017018B (en) | 2019-12-13 | 2019-12-13 | Horizontal joint assembly |
Publications (2)
Publication Number | Publication Date |
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CN111017018A CN111017018A (en) | 2020-04-17 |
CN111017018B true CN111017018B (en) | 2021-09-17 |
Family
ID=70209105
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CN201911282604.9A Active CN111017018B (en) | 2019-12-13 | 2019-12-13 | Horizontal joint assembly |
Country Status (1)
Country | Link |
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CN (1) | CN111017018B (en) |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB632157A (en) * | 1946-05-13 | 1949-11-17 | Fred Neale | Improved means for controlling clearances in bearings |
CN101067427A (en) * | 2006-05-05 | 2007-11-07 | 英国美瑞特重型车制动***有限公司 | Disc brake wear adjuster |
CN201292914Y (en) * | 2008-11-25 | 2009-08-19 | 上海应用技术学院 | Yawing brake device capable adjusting pressure and angle |
JP2012218695A (en) * | 2011-04-14 | 2012-11-12 | Nsk Ltd | Electric steering device |
CN104176122A (en) * | 2014-08-29 | 2014-12-03 | 芜湖南大汽车工业有限公司 | Automobile pull rod assembly |
CN204279616U (en) * | 2014-12-01 | 2015-04-22 | 沈阳金杯恒隆汽车转向***有限公司 | The outer bulb assembly of deflector intermediate rod |
US9291195B1 (en) * | 2014-12-03 | 2016-03-22 | Federal-Mogul Motorparts Corporation | Ball joint assembly |
CN205101393U (en) * | 2015-10-31 | 2016-03-23 | 玉环县振奋汽车配件厂 | Abrasionproof decreases car pull rod joint mechanism |
CN209725032U (en) * | 2019-03-26 | 2019-12-03 | 合肥工业大学 | A kind of braking gap compensation mechanism of line control brake system |
-
2019
- 2019-12-13 CN CN201911282604.9A patent/CN111017018B/en active Active
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB632157A (en) * | 1946-05-13 | 1949-11-17 | Fred Neale | Improved means for controlling clearances in bearings |
CN101067427A (en) * | 2006-05-05 | 2007-11-07 | 英国美瑞特重型车制动***有限公司 | Disc brake wear adjuster |
CN201292914Y (en) * | 2008-11-25 | 2009-08-19 | 上海应用技术学院 | Yawing brake device capable adjusting pressure and angle |
JP2012218695A (en) * | 2011-04-14 | 2012-11-12 | Nsk Ltd | Electric steering device |
CN104176122A (en) * | 2014-08-29 | 2014-12-03 | 芜湖南大汽车工业有限公司 | Automobile pull rod assembly |
CN204279616U (en) * | 2014-12-01 | 2015-04-22 | 沈阳金杯恒隆汽车转向***有限公司 | The outer bulb assembly of deflector intermediate rod |
US9291195B1 (en) * | 2014-12-03 | 2016-03-22 | Federal-Mogul Motorparts Corporation | Ball joint assembly |
CN205101393U (en) * | 2015-10-31 | 2016-03-23 | 玉环县振奋汽车配件厂 | Abrasionproof decreases car pull rod joint mechanism |
CN209725032U (en) * | 2019-03-26 | 2019-12-03 | 合肥工业大学 | A kind of braking gap compensation mechanism of line control brake system |
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Publication number | Publication date |
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CN111017018A (en) | 2020-04-17 |
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