CN111765164A - Pull rod bearing structure of large tractor - Google Patents
Pull rod bearing structure of large tractor Download PDFInfo
- Publication number
- CN111765164A CN111765164A CN202010772168.XA CN202010772168A CN111765164A CN 111765164 A CN111765164 A CN 111765164A CN 202010772168 A CN202010772168 A CN 202010772168A CN 111765164 A CN111765164 A CN 111765164A
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- Prior art keywords
- grease
- rod bearing
- shell
- pull rod
- groove
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Links
- 239000004519 grease Substances 0.000 claims abstract description 122
- 238000007599 discharging Methods 0.000 claims abstract description 57
- 239000000428 dust Substances 0.000 claims description 39
- 239000000463 material Substances 0.000 claims description 27
- 239000000314 lubricant Substances 0.000 claims description 20
- 230000001050 lubricating effect Effects 0.000 claims description 13
- 238000007789 sealing Methods 0.000 claims description 8
- 229910052961 molybdenite Inorganic materials 0.000 claims description 2
- 229910052982 molybdenum disulfide Inorganic materials 0.000 claims description 2
- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical compound S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 8
- 230000002035 prolonged effect Effects 0.000 abstract description 4
- 238000005299 abrasion Methods 0.000 abstract description 2
- 210000002445 nipple Anatomy 0.000 description 7
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 238000001746 injection moulding Methods 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C11/00—Pivots; Pivotal connections
- F16C11/04—Pivotal connections
- F16C11/06—Ball-joints; Other joints having more than one degree of angular freedom, i.e. universal joints
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C11/00—Pivots; Pivotal connections
- F16C11/04—Pivotal connections
- F16C11/06—Ball-joints; Other joints having more than one degree of angular freedom, i.e. universal joints
- F16C11/0666—Sealing means between the socket and the inner member shaft
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C11/00—Pivots; Pivotal connections
- F16C11/04—Pivotal connections
- F16C11/06—Ball-joints; Other joints having more than one degree of angular freedom, i.e. universal joints
- F16C11/068—Special features relating to lubrication
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C9/00—Bearings for crankshafts or connecting-rods; Attachment of connecting-rods
- F16C9/04—Connecting-rod bearings; Attachments thereof
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/50—Sealings between relatively-movable members, by means of a sealing without relatively-moving surfaces, e.g. fluid-tight sealings for transmitting motion through a wall
- F16J15/52—Sealings between relatively-movable members, by means of a sealing without relatively-moving surfaces, e.g. fluid-tight sealings for transmitting motion through a wall by means of sealing bellows or diaphragms
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The invention provides a large tractor pull rod bearing structure, wherein an inner pull rod bearing and an outer pull rod bearing are provided with grease through holes, oil nozzles are communicated with the grease through holes, the grease through holes are communicated with two rows of grease grooves, and the inner pull rod bearing and the outer pull rod bearing have a grease discharging function, so that when grease in the bearings fails, the grease is convenient to replace, the friction coefficient is reduced, and the service life of the bearings is prolonged; cover plates of the inner pull rod bearing and the outer pull rod bearing are screwed into the shell through threads, locking grooves are formed in the outer diameter of the cover plates, the cover plates are locked through the locking grooves in the threads, and then the cover plates are compressed through a press; due to the arrangement of the cover plate, ideal torque can be obtained, and meanwhile, the loosening of threads in the working process is prevented; according to the invention, the inner pull rod bearing shell is provided with the oil hole, the outer surface of the shell is provided with the spiral exhaust groove, and when grease is added, the grease passes through the oil hole and the exhaust groove, so that the outer diameter of the inner pull rod bearing shell is lubricated. The invention solves the problems of grease discharging, torque, abrasion and the like of the bearing, ensures the torque stability of the bearing and greatly prolongs the service life of the bearing.
Description
Technical Field
The invention belongs to the technical field of pull rod bearings, and particularly relates to a pull rod bearing structure of a large tractor.
Background
The large tractor pull rod bearing is used for connecting a steering gear and a steering wheel with a vehicle chassis, ensures the steering safety of the wheel, is a suspension for transmitting force and moment between a vehicle frame and an axle (wheel), bears the load of the vehicle, maintains the normal running of the vehicle on a road, and is a key part in an independent suspension chassis steering system. The method can ensure that the wheel track and the front wheel positioning parameter change are within an acceptable limit range, and ensure that the vehicle has good running stability.
The existing tie rod steering bearing has the following problems: (1) in the working process, because slurry enters the inside of the bearing, the grease cannot be replaced when being polluted, so that the inner matching surface is seriously abraded; (2) the outer diameter of the inner pull rod bearing slips in the working process, and the outer diameter is seriously abraded; (3) the bearing structure is complicated and the processing is complicated. These problems seriously affect the operational stability of the vehicle.
In the actual use environment of the large tractor, wind sand, muddy water and high-low temperature difference exist, so that higher requirements are provided for the grease discharging performance, the torque, the play and the service life of the steering pull rod, and the traditional pull rod steering bearing is difficult to meet the use requirements of the large tractor.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a pull rod bearing structure of a large tractor, which solves the problems of grease discharging, torque, abrasion and the like of a bearing, ensures the torque stability of the bearing and greatly prolongs the service life of the bearing.
The present invention achieves the above-described object by the following technical means.
A large tractor pull rod bearing structure comprises an inner pull rod bearing and an outer pull rod bearing, wherein a ball pin rod part of the inner pull rod bearing extends into a shell of the outer pull rod bearing, is in threaded fit with the inside of the shell and is locked by a bolt 3 through a self-locking groove;
the inner pull rod bearing comprises a shell A, a ball pin A and a cover plate A, wherein the ball head part of the ball pin A is arranged in a seat hole of the shell A in a clearance fit mode, the cover plate A is positioned at the bottom end of the shell A, and the cover plate A is screwed into the shell A through external-diameter threads; a first grease discharging groove is formed in the shell A, a second grease discharging groove is formed in the cover plate A, a first grease through hole is formed in the ball pin A, the first grease through hole is communicated with the second grease discharging groove and the first grease discharging groove, and the first grease through hole is communicated with a grease nipple A arranged on the rod part of the ball pin A; the outer surface of the shell A is provided with a spiral exhaust groove, and the shell A is also provided with an oil hole which is communicated with the spiral exhaust groove; the outer diameter of the cover plate A is also provided with a locking groove for realizing thread locking;
the outer pull rod bearing comprises a shell B, a ball pin B and a cover plate B, wherein a self-lubricating material A is injected in an assembling seat hole of the shell B, the ball head part of the ball pin B is partially arranged in a seat hole of the lubricating material A in a clearance fit mode, and a first longitudinal grease discharging groove is formed in the lubricating material A; a self-lubricating material B is injected in the assembling seat hole of the cover plate B, and a second longitudinal grease discharging groove is formed in the lubricating material B; the grease nozzle B is arranged on the shell B and is communicated with a grease through hole of the shell B, and the grease through hole of the shell B is communicated with the first longitudinal grease discharging groove and the second longitudinal grease discharging groove; the outer diameter of the cover plate B is also provided with a locking groove for realizing thread locking.
In the technical scheme, the inner pull rod bearing further comprises a dust cover A, the upper opening of the dust cover A is installed on the rod part of the ball pin A, and the lower opening of the dust cover A is in interference fit with the oil cylinder.
In the technical scheme, the upper lip of the dust cover A is provided with the grease discharging groove A, and the upper lip of the dust cover A is also provided with the spring locking ring and the sealing lip A.
In the technical scheme, MoS is sprayed on the outer diameter surface of the shell A2。
In the technical scheme, the lubricant A is sprayed on the inner spherical surface of the first grease discharging groove and the ball pin A, and the lubricant B is sprayed on the inner spherical surface of the second grease discharging groove and the ball pin A.
In the technical scheme, the outer pull rod bearing further comprises a dust cover B, the upper opening of the dust cover B is arranged on the rod part of the ball pin B, the lower opening of the dust cover B with a threaded part of the ball pin B is arranged in a groove of the shell B, and the lower opening of the dust cover B with a non-threaded part of the ball pin B is arranged in a groove of the cover plate B.
In the technical scheme, the upper lip of the dust cover B is provided with the grease discharging groove B, and the upper lip of the dust cover B is also provided with the spring locking ring and the sealing lip B.
In the technical scheme, the lubricant C is sprayed on the inner spherical surfaces of the self-lubricating material A and the ball pin B, and the lubricant D is sprayed on the inner spherical surfaces of the self-lubricating material B and the ball pin B.
In the technical scheme, the cover plate A and the cover plate B are respectively connected through threads and then are compressed by adopting a press machine to wrap edges.
The invention has the beneficial effects that:
(1) a ball pin A in an inner pull rod bearing is provided with a first grease through hole, and an oil nozzle A is communicated with the first grease through hole; a first grease discharging groove is formed in the shell A, a second grease discharging groove is formed in the cover plate A, and the first grease through hole is communicated with the second grease discharging groove and the first grease discharging groove; a shell of the outer pull rod bearing is provided with a second grease through hole, and a grease nipple B is communicated with the second grease through hole; a first longitudinal grease discharging groove is formed in the lubricating material A, a second longitudinal grease discharging groove is formed in the lubricating material B, and the second grease through hole is communicated with the first longitudinal grease discharging groove and the second longitudinal grease discharging groove; the inner and outer pull rod bearings have a grease discharging function, when grease in the bearings fails, the grease is convenient to replace, the friction coefficient is reduced, and the service life of the bearings is prolonged.
(2) The outer diameter of a cover plate A of the inner pull rod bearing is provided with threads, and the cover plate A is screwed into a shell A through the threads; the outer diameter of the cover plate A is also provided with a locking groove, and after the cover plate A is locked by the locking groove threads, the cover plate A is covered and pressed by a press; the outer diameter thread of a cover plate B of the outer pull rod bearing is screwed into the shell B, a locking groove is formed in the outer diameter of the cover plate B, the cover plate B is locked through the locking groove thread and then is subjected to edge covering and pressing through a press; through the arrangement of the cover plate, ideal torque can be obtained through the thread locking torque, and meanwhile, the press machine is used for pressing to prevent threads from loosening in the working process.
(3) According to the invention, the inner pull rod bearing shell is provided with the oil hole, the outer surface of the shell is provided with the spiral exhaust groove, and when grease is added through the oil nipple A, the grease sequentially passes through the first grease through hole, the oil hole and the exhaust groove, so that the outer diameter of the shell A is lubricated.
(4) The outer diameter surface of the inner pull rod bearing shell is sprayed with MoS2And the outer diameter surface of the bearing is prevented from being abraded and occluded due to the fact that the outer diameter surface of the bearing slips when the bearing works.
Drawings
FIG. 1 is a front view of a large tractor drawbar bearing configuration according to the present invention;
FIG. 2 is a schematic view of the inner pull rod bearing structure according to the present invention;
FIG. 3 is a partial view of a first grease discharging groove according to the present invention;
FIG. 4 is a partial view of a second grease discharging groove according to the present invention;
FIG. 5 is a schematic view of an exhaust groove on the inner rod bearing housing according to the present invention;
FIG. 6 is a schematic view of the outer tie rod bearing structure according to the present invention;
FIG. 7 is a partial view of a first longitudinal grease groove in accordance with the present invention;
FIG. 8 is a partial view of a second longitudinal grease groove in accordance with the present invention;
FIG. 9 is a schematic view of the installation of the nozzle tip B according to the present invention;
FIG. 10 is a detail view of the inner rod bearing dust shield of the present invention;
FIG. 11 is a detail view of the outer rod bearing dust shield of the present invention.
In the figure: 1-inner pull rod bearing, 2-outer pull rod bearing, 3-bolt, 101-shell A, 102-ball pin A, 103-cover plate A, 104-dust cover A, 105-locking ring, 106-oil nozzle A, 107-lubricant A, 108-lubricant B, 109-oil hole, 110-exhaust groove, 201-shell B, 202-lubricating material A, 203-ball pin B, 204-lubricating material B, 205-cover plate B, 206-dust cover B, 207-spring locking ring A, 208-spring locking ring B, 209-lubricant C, 210-lubricant D, 211-oil nozzle B, 1041-grease discharging groove A, 1042-spring locking groove A, 1043-steel skeleton, 1044-seal lip A, 2061-grease discharging groove B, 2062-spring locking groove B, 2063-spring locking groove B, 2064-sealing lip B.
Detailed Description
The invention will be further described with reference to the following figures and specific examples, but the scope of the invention is not limited thereto.
As shown in fig. 1, the tie rod bearing structure of a large tractor comprises an inner tie rod bearing 1, an outer tie rod bearing 2 and a bolt 3, wherein a ball pin rod part of the inner tie rod bearing 1 extends into a thread inside a shell of the outer tie rod bearing 2 and is locked by the bolt 3 through a self-locking groove.
As shown in fig. 2, the inner draw rod bearing 1 includes a housing a101, a ball pin a102, a cover plate a103, a dust cover a104, a lock ring 105, a choke a106, a lubricant a107, a lubricant B108, an oil hole 109, and an exhaust groove 110; the ball head part of the ball pin A102 is arranged in the seat hole of the shell A101 through clearance fit, and the coverThe plate A103 is positioned at the bottom end of the shell A101, the outer diameter of the cover plate A103 is provided with threads, and after the cover plate A103 is screwed into the shell A101 through the threads, the cover plate A103 is wrapped and compressed through a press machine, so that the threads are prevented from loosening in the working process; the outer diameter of the cover plate A103 is also provided with a locking groove, and a torque wrench is locked through the locking groove threads to obtain the torque actually required; the ball pin A102 is provided with a first grease through hole; the upper opening of the dust cover A104 is arranged at the rod part of the ball pin A102 and is locked by a spring locking ring 105, and the lower opening of the dust cover A104 is in interference fit with the oil cylinder through a steel skeleton; the oil nozzle A106 is installed on the rod part of the ball pin A102 in a threaded mode and is communicated with the first grease through hole, and the oil nozzle A106 is locked through a wrench. A first grease discharging groove is formed in the shell A101, and a lubricant A107 (shown in figure 3) is sprayed on the first grease discharging groove and the inner spherical surface of the ball pin A102; a second grease discharging groove is formed in the cover plate A103, and a lubricant B108 (shown in FIG. 4) is sprayed on the inner spherical surface of the second grease discharging groove and the ball pin A102; the first grease through hole is communicated with the second grease discharging groove and the first grease discharging groove. A spiral exhaust groove 110 (shown in fig. 5) is formed in the outer surface of the shell a101, an oil hole 109 (shown in fig. 3) is further formed in the shell a101, and the oil hole 109 is communicated with the spiral exhaust groove 110; MoS is sprayed on the outer diameter surface of the shell A1012The outer diameter is prevented from slipping in the working process, so that the outer diameter of the shell A101 is prevented from being excessively worn; the exhaust groove 110 is used for gas exhaust at the time of assembly. When grease is added through the grease nipple a106, the grease passes through the first grease passing hole, the oil hole 109 and the exhaust groove 110 in sequence, and lubrication of the outer diameter of the housing a101 is achieved.
As shown in fig. 6, the outer draw rod bearing 2 includes a housing B201, a lubricating material a202, a ball pin B203, a lubricating material B204, a cover plate B205, a dust cover B206, a spring lock ring a207, a spring lock ring B208, a lubricant C209, a lubricant D210, and a choke B211; a self-lubricating material A202 is injected into the assembling seat hole of the shell B201 through an injection molding machine, and the ball head part of the ball pin B203 is arranged in the lubricating material A202 seat hole in a clearance fit mode; a first longitudinal grease discharging groove is formed in the lubricating material A202; a self-lubricating material B204 is injected into the assembly seat hole of the cover plate B205 through an injection molding machine, and a second longitudinal grease discharging groove is formed in the lubricating material B204; after the outer diameter threads of the cover plate B205 are screwed into the shell B201, the cover plate B205 is wrapped and compressed through a press machine, and the threads are prevented from loosening in the working process; the outer diameter of the cover plate B205 is provided with a locking groove, and a torque wrench is locked through the locking groove threads to obtain the torque required actually. The upper opening of the dust cover B206 is arranged at the rod part of the ball pin B203 and is locked by a spring locking ring A207; the lower opening of a dust cover B206 with a threaded part of a ball pin B203 is arranged in a groove of the shell B201 and is locked by a spring locking ring B208; the lower mouth of the dust cover B206 without the threaded part of the ball pin B203 is arranged in the groove of the cover plate B205 and is locked by a spring lock ring B208. Lubricant C209 (figure 7) is sprayed on the inner spherical surfaces of the self-lubricating material A202 and the ball pin B203, and lubricant D210 (figure 8) is sprayed on the inner spherical surfaces of the self-lubricating material B204 and the ball pin B203; the oil nozzle B211 is installed on the shell B201 in a threaded mode (figure 9) and is locked through a wrench; the grease nipple B211 communicates with a grease passing hole (second grease passing hole) of the housing B201, and the second grease passing hole communicates with the first longitudinal grease discharging groove and the second longitudinal grease discharging groove.
As shown in figure 10, the upper lip of the dust cover A104 is provided with a grease discharging groove A1041 for facilitating the discharge of grease from the grease discharging groove A when the grease is invalid; the upper lip of the dust cover A104 is also provided with a spring locking groove A1042 and a sealing lip A1044, and the spring locking groove A1042 is used for installing the spring locking ring 105 to achieve a good sealing effect; the lower opening of the dust cover A104 is assembled and installed by adopting an internal steel framework 1043. When the grease in the bearing fails, new grease is added to the bearing again through the grease nipple A106, and the old grease is discharged from the second grease discharging groove, the first grease discharging groove and the grease discharging groove A1041 in sequence, so that the friction coefficient of the bearing is reduced, and the service life of the bearing is prolonged; the old grease is also discharged through the first grease discharging groove, the oil hole 9 and the exhaust groove 110, and lubricates the outer diameter of the shell A101.
As shown in FIG. 11, the upper lip of the dust boot B206 is provided with a grease discharge groove B2061 to facilitate the discharge of grease therefrom when grease fails; the upper lip of the dust cover B206 is also provided with a spring locking groove B2062 and a sealing lip B2064 which play a role in sealing; the lower opening of the dust cover B206 is provided with a spring locking groove B2063, and the spring locking groove B2063 is used for installing the spring locking ring A207 and the spring locking ring B208. When the grease in the bearing is invalid, new grease is added to the bearing through the grease nipple B211 again, the old grease is discharged from the first longitudinal grease discharging groove, the second longitudinal grease discharging groove and the grease discharging groove B2061 in sequence, the friction coefficient of the bearing is reduced, and the service life of the bearing is prolonged.
The present invention is not limited to the above-described embodiments, and any obvious improvements, substitutions or modifications can be made by those skilled in the art without departing from the spirit of the present invention.
Claims (9)
1. A large tractor pull rod bearing structure is characterized by comprising an inner pull rod bearing (1) and an outer pull rod bearing (2), wherein a ball pin rod part of the inner pull rod bearing (1) extends into a thread inside a shell of the outer pull rod bearing (2) and is locked by a bolt (3) through a self-locking groove;
the inner pull rod bearing (1) comprises a shell A (101), a ball pin A (102) and a cover plate A (103), wherein the ball head part of the ball pin A (102) is arranged in a seat hole of the shell A (101) in a clearance fit mode, the cover plate A (103) is located at the bottom end of the shell A (101), and the cover plate A (103) is screwed into the shell A (101) through outer-diameter threads; a first grease discharging groove is formed in the shell A (101), a second grease discharging groove is formed in the cover plate A (103), a first grease through hole is formed in the ball pin A (102), the first grease through hole is communicated with the second grease discharging groove and the first grease discharging groove, and the first grease through hole is communicated with an oil nozzle A (106) arranged at the rod part of the ball pin A (102); a spiral exhaust groove (110) is formed in the outer surface of the shell A (101), an oil hole (109) is formed in the shell A (101), and the oil hole (109) is communicated with the spiral exhaust groove (110); the outer diameter of the cover plate A (103) is also provided with a locking groove for realizing thread locking;
the outer pull rod bearing (2) comprises a shell B (201), a ball pin B (203) and a cover plate B (205), wherein a self-lubricating material A (202) is injected in an assembling seat hole of the shell B (201), the ball head part of the ball pin B (203) is arranged in the seat hole of the lubricating material A (202) in a clearance fit mode, and a first longitudinal grease discharging groove is formed in the lubricating material A (202); a self-lubricating material B (204) is injected in the assembling seat hole of the cover plate B (205), and a second longitudinal grease discharging groove is formed in the lubricating material B (204); a grease nozzle B (211) is arranged on the shell B (201), the grease nozzle B (211) is communicated with a grease through hole of the shell B (201), and the grease through hole of the shell B (201) is communicated with the first longitudinal grease discharging groove and the second longitudinal grease discharging groove; the outer diameter of the cover plate B (205) is also provided with a locking groove for realizing thread locking.
2. The tie rod bearing structure of the large tractor according to claim 1, wherein the inner tie rod bearing (1) further comprises a dust cover A (104), an upper opening of the dust cover A (104) is installed on a rod part of the ball pin A (102), and a lower opening of the dust cover A (104) is in over-win fit on the oil cylinder.
3. The large tractor tie rod bearing structure of claim 2, wherein the dust guard a (104) upper lip is provided with a grease discharging groove a (1041), and the dust guard a (104) upper lip is further provided with a spring locking ring (105) and a sealing lip a (1044).
4. The tie rod bearing structure of the large tractor according to claim 1, wherein the outer diameter surface of the housing A (101) is coated with MoS2。
5. The large tractor tie rod bearing structure of claim 1, wherein the first grease groove and ball pin a (102) is internally spherically sprayed with lubricant a (107) and the second grease groove and ball pin a (102) is internally spherically sprayed with lubricant B (108).
6. The large tractor drawbar bearing configuration according to claim 1, wherein the outer drawbar bearing (2) further comprises a dust guard B (206), an upper mouth of the dust guard B (206) is mounted on a shank of the ball pin B (203), a lower mouth of the dust guard B (206) with a threaded portion of the ball pin B (203) is mounted in a groove of the housing B (201), and a lower mouth of the dust guard B (206) with a non-threaded portion of the ball pin B (203) is mounted in a groove of the cover plate B (205).
7. The large tractor tie rod bearing structure of claim 6, wherein the dust boot B (206) upper lip is provided with a grease groove B (2061), and the dust boot B (206) upper lip is further provided with a spring lock ring and a seal lip B (2064).
8. The large tractor tie rod bearing structure of claim 1, wherein the self-lubricating material a (202) and ball pin B (203) are internally spherically sprayed with lubricant C (209), and the self-lubricating material B (204) and ball pin B (203) are internally spherically sprayed with lubricant D (210).
9. The tie rod bearing structure of the large tractor according to claim 1, wherein the cover plate A (103) and the cover plate B (205) are respectively connected through threads and then are subjected to edge covering and pressing by a press.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010772168.XA CN111765164B (en) | 2020-08-04 | 2020-08-04 | Pull rod bearing structure of large tractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010772168.XA CN111765164B (en) | 2020-08-04 | 2020-08-04 | Pull rod bearing structure of large tractor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111765164A true CN111765164A (en) | 2020-10-13 |
| CN111765164B CN111765164B (en) | 2024-07-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010772168.XA Active CN111765164B (en) | 2020-08-04 | 2020-08-04 | Pull rod bearing structure of large tractor |
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| Country | Link |
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| CN (1) | CN111765164B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030039420A1 (en) * | 2001-08-24 | 2003-02-27 | The Boeing Company | Truck pivot joint bearing and method of lubricating |
| US20070048081A1 (en) * | 2005-08-25 | 2007-03-01 | James Elterman | Dust boot with grease relief passage |
| CN106884866A (en) * | 2017-04-01 | 2017-06-23 | 江苏希西维轴承有限公司 | A kind of spherojoint |
| CN209654418U (en) * | 2019-01-04 | 2019-11-19 | 浙江锐泰悬挂系统科技有限公司 | A kind of spherojoint dust cover, spherojoint component and triangle arm assembly |
| CN212337886U (en) * | 2020-08-04 | 2021-01-12 | 江苏希西维轴承有限公司 | Pull rod bearing structure of large tractor |
-
2020
- 2020-08-04 CN CN202010772168.XA patent/CN111765164B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030039420A1 (en) * | 2001-08-24 | 2003-02-27 | The Boeing Company | Truck pivot joint bearing and method of lubricating |
| US20070048081A1 (en) * | 2005-08-25 | 2007-03-01 | James Elterman | Dust boot with grease relief passage |
| CN106884866A (en) * | 2017-04-01 | 2017-06-23 | 江苏希西维轴承有限公司 | A kind of spherojoint |
| CN209654418U (en) * | 2019-01-04 | 2019-11-19 | 浙江锐泰悬挂系统科技有限公司 | A kind of spherojoint dust cover, spherojoint component and triangle arm assembly |
| CN212337886U (en) * | 2020-08-04 | 2021-01-12 | 江苏希西维轴承有限公司 | Pull rod bearing structure of large tractor |
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