CN111765164B - Pull rod bearing structure of large tractor - Google Patents
Pull rod bearing structure of large tractor Download PDFInfo
- Publication number
- CN111765164B CN111765164B CN202010772168.XA CN202010772168A CN111765164B CN 111765164 B CN111765164 B CN 111765164B CN 202010772168 A CN202010772168 A CN 202010772168A CN 111765164 B CN111765164 B CN 111765164B
- Authority
- CN
- China
- Prior art keywords
- grease
- shell
- pull rod
- rod bearing
- ball pin
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 239000004519 grease Substances 0.000 claims abstract description 100
- 238000007599 discharging Methods 0.000 claims abstract description 58
- 239000000428 dust Substances 0.000 claims description 39
- 239000000463 material Substances 0.000 claims description 25
- 239000000314 lubricant Substances 0.000 claims description 22
- 230000001050 lubricating effect Effects 0.000 claims description 12
- 238000007789 sealing Methods 0.000 claims description 8
- 238000005056 compaction Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 abstract description 8
- 238000005299 abrasion Methods 0.000 abstract description 5
- 210000002445 nipple Anatomy 0.000 abstract description 4
- 230000002035 prolonged effect Effects 0.000 abstract description 4
- 238000001746 injection moulding Methods 0.000 description 4
- 150000002632 lipids Chemical class 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 239000007921 spray 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
- 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
- 239000000725 suspension Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
-
- 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
-
- 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, a grease nipple is communicated with the grease through holes, the grease through holes are communicated with two grease discharging grooves, the inner pull rod bearing and the outer pull rod bearing have grease discharging functions, 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; the 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 threads of the locking grooves, and then the cover plates are covered and pressed through a press; the cover plate is arranged, so that ideal torque can be obtained, and screw loosening in the working process is prevented; 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 to lubricate the outer diameter of the inner pull rod bearing shell. The invention solves the problems of grease discharge, torque, abrasion and the like of the bearing, ensures the stability of the torque 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 of a vehicle chassis, ensures the steering safety of the wheels, transfers force and moment between a frame and an axle (wheels), 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 in an acceptable limit range, and ensure that the vehicle has good running stability.
The existing pull rod steering bearing has the following problems: (1) In the working process, because slurry enters the bearing, the grease cannot be replaced when being polluted, so that the abrasion of the inner matching surface is serious; (2) The outer diameter of the inner pull rod bearing slips in the working process, and the outer diameter is severely worn; and (3) the bearing structure is complex and the processing is complicated. These problems seriously affect the operation stability of the vehicle.
The actual use environment of the large tractor has the temperature difference of sand, muddy water and high and low, so that higher requirements are put forward on the grease discharging performance, torque, play and service life of the steering pull rod, and the use requirements of the large tractor are difficult to meet by the traditional steering bearing of the steering pull rod.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a pull rod bearing structure of a large tractor, solves the problems of grease discharge, torque, abrasion and the like of a bearing, ensures the stability of the torque of the bearing, and greatly prolongs the service life of the bearing.
The present invention achieves the above technical object by the following means.
A pull rod bearing structure of a large tractor 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 the shell of the outer pull rod bearing, is matched with threads in the shell, and is locked by a self-locking groove through a bolt 3;
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 in clearance fit into a seat hole of the shell A, 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; the shell A is internally provided with a first grease discharging groove, the cover plate A is internally provided with a second grease discharging groove, the ball pin A is provided with a first grease through hole, 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 nipple A arranged at the rod part of the ball pin A; the outer surface of the shell A is provided with a spiral exhaust groove, the shell A is also provided with an oil hole, and the oil hole 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, a self-lubricating material A is injected into an assembly seat hole of the shell B, a ball head part of the ball pin B is in clearance fit with the seat hole of the lubricating material A, and a first longitudinal grease discharging groove is formed in the lubricating material A; the cover plate B is internally provided with a self-lubricating material B in an injection molding manner, and a second longitudinal grease discharging groove is formed in the lubricating material B; the oil nozzle B is arranged on the shell B and is communicated with the oil through hole of the shell B, and the oil through hole of the shell B is communicated with the first longitudinal oil drain groove and the second longitudinal oil drain groove; the outer diameter of the cover plate B is also provided with a locking groove for realizing thread locking.
In the above technical scheme, the inner pull rod bearing further comprises a dust cover A, an upper opening of the dust cover A is arranged on the rod part of the ball pin A, and a lower opening of the dust cover A is in win-win fit with the oil cylinder.
In the technical scheme, the upper lip opening of the dust cover A is provided with the grease discharging groove A, and the upper lip opening of the dust cover A is also provided with the spring lock ring and the sealing lip A.
In the technical scheme, moS 2 is sprayed on the outer diameter surface of the shell A.
In the technical scheme, the first grease discharging groove and the inner spherical surface of the ball pin A are coated with the lubricant A, and the second grease discharging groove and the inner spherical surface of the ball pin A are coated with the lubricant B.
In the above technical scheme, the outer pull rod bearing further comprises a dust cover B, an upper opening of the dust cover B is arranged on a rod portion of the ball pin B, a lower opening of the dust cover B with a threaded portion of the ball pin B is arranged in a groove of the shell B, and a lower opening of the dust cover B without the threaded portion 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 lock ring and the sealing lip B.
In the technical scheme, the self-lubricating material A and the inner spherical surface of the ball pin B are sprayed with the lubricant C, and the self-lubricating material B and the inner spherical surface of the ball pin B are sprayed with the lubricant D.
In the technical scheme, after the cover plate A and the cover plate B are connected through threads respectively, a press machine is used for edge covering and compaction.
The beneficial effects of the invention are as follows:
(1) The ball pin A in the inner pull rod bearing is provided with a first grease through hole, and the oil nozzle A is communicated with the first grease through hole; the shell A is internally provided with a first grease discharging groove, the cover plate A is internally provided with a second grease discharging groove, and the first grease through hole is communicated with the second grease discharging groove and the first grease discharging groove; the shell of the outer pull rod bearing is provided with a second grease through hole, and the oil nozzle B is communicated with the second grease through hole; the lubricating material A is internally provided with a first longitudinal grease discharging groove, the lubricating material B is internally provided with a second longitudinal grease discharging groove, and the second grease through hole is communicated with the first longitudinal grease discharging groove and the second longitudinal grease discharging groove; the inner pull rod bearing and the outer pull rod bearing have the function of grease discharging, so that grease can be conveniently replaced when the grease in the bearings fails, 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 the shell A through the threads; the outer diameter of the cover plate A is also provided with a locking groove, and the cover plate A is subjected to edge wrapping and compaction through a press after being locked through threads of the locking groove; the outer diameter of a cover plate B of the outer pull rod bearing is screwed into the shell B by threads, the outer diameter of the cover plate B is provided with a locking groove, the cover plate B is locked by the threads of the locking groove, and then the cover plate B is covered and pressed by a press; the cover plate is arranged, ideal torque can be obtained through screw locking torque, and screw loosening in the working process is prevented through pressing by a press.
(3) 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 nozzle 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 inner pull rod bearing shell is sprayed with MoS 2 on the outer diameter surface, so that the abrasion and engagement of the outer diameter surface caused by the slipping of the outer diameter surface during the working of the bearing are prevented.
Drawings
FIG. 1 is a front view of a large tractor pull rod bearing structure according to the present invention;
FIG. 2 is a schematic view of the inner rod bearing structure according to the present invention;
FIG. 3 is a partial view of a first lipid discharging groove according to the present invention;
FIG. 4 is a partial view of a second lipid discharging groove according to the present invention;
FIG. 5 is a schematic view of an exhaust slot in an inner tie rod bearing housing according to the present invention;
FIG. 6 is a schematic view of an outer tie rod bearing according to the present invention;
FIG. 7 is a partial view of a first longitudinal lipid discharge channel according to the present invention;
FIG. 8 is a partial view of a second longitudinal lipid discharge channel according to the present invention;
FIG. 9 is a schematic view of the installation of the oil nozzle B according to the invention;
FIG. 10 is a detail view of the inner tie rod bearing dust cap of the present invention;
FIG. 11 is a detail view of the outer tie rod bearing dust cap of the present invention.
In the figure: 1-inner rod bearing, 2-outer rod bearing, 3-bolt, 101-housing A, 102-ball pin A, 103-cover plate A, 104-dust cap A, 105-lock, 106-oil nozzle A, 107-lubricant A, 108-lubricant B, 109-oil hole, 110-vent, 201-housing B, 202-lubricant A, 203-ball pin B, 204-lubricant B, 205-cover plate B, 206-dust cap B, 207-spring lock, 208-spring lock B, 209-lubricant C, 210-lubricant D, 211-oil nozzle B, 1041-grease discharging groove A, 1042-spring lock groove A, 1043-steel skeleton, 1044-seal lip A, 2061-grease discharging groove B, 2062-spring lock groove B, 2063-spring lock groove B, 2064-seal lip B.
Detailed Description
The invention will be further described with reference to the drawings and the specific embodiments, but the scope of the invention is not limited thereto.
As shown in fig. 1, a pull rod bearing structure of a large tractor comprises an inner pull rod bearing 1, an outer pull rod bearing 2 and a bolt 3, wherein the ball pin rod part of the inner pull rod bearing 1 stretches into threads inside a shell of the outer pull rod bearing 2 and is locked by a self-locking groove through the bolt 3.
As shown in fig. 2, the inner tie rod bearing 1 includes a housing a101, a ball pin a102, a cover plate a103, a dust cover a104, a lock ring 105, a nipple 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 assembled into a seat hole of the shell A101 through clearance fit, the cover plate A103 is positioned at the bottom end of the shell A101, threads are arranged on the outer diameter of the cover plate A103, after the cover plate A103 is screwed into the shell A101 through the threads, the cover plate A103 is subjected to edge wrapping and compaction through a press, and 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 the torque wrench is locked through the locking groove in a threaded manner 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 lock ring 105, and the lower opening of the dust cover A104 is in win-win fit with the oil cylinder by a steel skeleton; the oil nozzle A106 is installed on the rod part of the ball pin A102 in a threaded manner and communicated with the first grease through hole, and the oil nozzle A106 is locked by a spanner. A first grease discharging groove is formed in the shell A101, and a lubricant A107 (figure 3) is sprayed on the inner spherical surface of the first grease discharging groove and the ball pin A102; a second grease discharging groove is formed in the cover plate A103, and a lubricant B108 (figure 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. The outer surface of the shell A101 is provided with a spiral exhaust groove 110 (figure 5), the shell A101 is also provided with an oil hole 109 (figure 3), and the oil hole 109 is communicated with the spiral exhaust groove 110; moS 2 is sprayed on the outer diameter surface of the shell A101, so that excessive abrasion of the outer diameter of the shell A101 is prevented from being caused by the slipping of the outer diameter in the working process; the exhaust groove 110 is used for gas discharge at the time of assembly. When grease is added through the oil nozzle A106, the grease sequentially passes through the first grease passing hole, the oil hole 109 and the exhaust groove 110, so that the outer diameter of the shell A101 is lubricated.
As shown in fig. 6, the outer tie 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 snap lock ring a207, a snap lock ring B208, a lubricant C209, a lubricant D210, and a nipple B211; the self-lubricating material A202 is injected into the assembly seat hole of the shell B201 through an injection molding machine, and the ball head part of the ball pin B203 is filled into the seat hole of the self-lubricating material A202 through clearance fit; a first longitudinal grease discharging groove is formed in the lubricating material A202; the cover plate B205 is internally provided with a self-lubricating material B204 by injection molding through an injection molding machine, and a second longitudinal grease discharging groove is arranged 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 subjected to edge wrapping compaction through a press machine, so that the loosening of threads in the working process is prevented; the outer diameter of the cover plate B205 is provided with a locking groove, and the torque wrench is locked through the locking groove in a threaded manner to obtain the torque of actual requirements. The upper opening of the dust cover B206 is arranged on the rod part of the ball pin B203 and is locked by the spring lock ring A207; the lower opening of the dust cover B206 of the threaded part of the ball pin B203 is arranged in the groove of the shell B201 and is locked by the spring lock ring B208; the lower opening of the dust cover B206 of the ball pin B203 without the threaded part is arranged in the groove of the cover plate B205 and locked by the spring lock ring B208. Self-lubricating material A202 and ball pin B203 inner sphere spray lubricant C209 (FIG. 7), self-lubricating material B204 and ball pin B203 inner sphere spray lubricant D210 (FIG. 8); the oil nozzle B211 is arranged on the shell B201 in a threaded manner (fig. 9) and is locked by a spanner; the oil nozzle B211 is communicated with the oil through hole (second oil through hole) of the shell B201, and the second oil through hole is communicated with the first longitudinal oil drain groove and the second longitudinal oil drain groove.
As shown in fig. 10, the upper lip of the dust cover a104 is provided with a grease discharging groove a1041, which is convenient for discharging grease when the grease fails; the upper lip opening 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 a spring locking ring 105, so that a good sealing effect is achieved; the lower opening of the dust cover A104 is assembled and installed by adopting a built-in steel skeleton 1043. When the grease in the bearing fails, new grease is added to the bearing again through the oil nozzle A106, and 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; old grease is also discharged through the first grease discharging groove, the oil hole 9 and the air discharging groove 110, and lubricates the outer diameter of the shell A101.
As shown in fig. 11, the lip opening of the dust cover B206 is provided with a grease discharging groove B2061, which is convenient for discharging grease therefrom when the grease fails; the upper lip opening 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 mouth of the dust cap 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. And when the grease in the bearing fails, new grease is added to the bearing again through the oil nozzle B211, and 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, so that the friction coefficient of the bearing is reduced, and the service life of the bearing is prolonged.
The examples are preferred embodiments of the present invention, but the present invention is not limited to the above-described embodiments, and any obvious modifications, substitutions or variations that can be made by one skilled in the art without departing from the spirit of the present invention are within the scope of the present invention.
Claims (1)
1. The utility model provides a large tractor pull rod bearing structure which is characterized by comprising an inner pull rod bearing (1) and an outer pull rod bearing (2), wherein the ball pin rod part of the inner pull rod bearing (1) stretches into threads in the shell of the outer pull rod bearing (2) and is locked by a self-locking groove through a bolt (3);
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 in clearance fit into a seat hole of the shell A (101), the cover plate A (103) is positioned at the bottom end of the shell A (101), and the cover plate A (103) is screwed into the shell A (101) through external diameter threads; the shell A (101) is internally provided with a first grease discharging groove, the cover plate A (103) is internally provided with a second grease discharging groove, the ball pin A (102) is provided with a first grease passing hole, the first grease passing hole is communicated with the second grease discharging groove and the first grease discharging groove, and the first grease passing hole is communicated with a nozzle A (106) arranged at the rod part of the ball pin A (102); the outer surface of the shell A (101) is provided with a spiral exhaust groove (110), the shell A (101) is also provided with an oil hole (109), 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 into an assembly seat hole of the shell B (201), a ball head part of the ball pin B (203) is filled into the seat hole of the lubricating material A (202) in a clearance fit manner, and a first longitudinal grease discharging groove is formed in the lubricating material A (202); a self-lubricating material B (204) is injected into the assembly seat hole of the cover plate B (205), and a second longitudinal grease discharging groove is arranged in the lubricating material B (204); a glib (211) is arranged on the shell B (201), the glib (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 a first longitudinal grease discharging groove and a 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;
The inner pull rod bearing (1) further comprises a dust cover A (104), the upper opening of the dust cover A (104) is arranged on the rod part of the ball pin A (102), and the lower opening of the dust cover A (104) is in win-win fit with the oil cylinder;
the upper lip opening of the dust cover A (104) is provided with a grease discharging groove A (1041), and the upper lip opening of the dust cover A (104) is also provided with a spring lock ring (105) and a sealing lip A (1044);
MoS 2 is sprayed on the outer diameter surface of the shell A (101);
the first grease discharging groove and the inner spherical surface of the ball pin A (102) are sprayed with a lubricant A (107), and the second grease discharging groove and the inner spherical surface of the ball pin A (102) are sprayed with a lubricant B (108);
The outer pull rod bearing (2) further comprises a dust cover B (206), wherein an upper opening of the dust cover B (206) is arranged at the rod part of the ball pin B (203), a lower opening of the dust cover B (206) with a threaded part of the ball pin B (203) is arranged in a groove of the shell B (201), and a lower opening of the dust cover B (206) without a threaded part of the ball pin B (203) is arranged in a groove of the cover plate B (205);
the upper lip opening of the dust cover B (206) is provided with a grease discharging groove B (2061), and the upper lip opening of the dust cover B (206) is also provided with a spring lock ring and a sealing lip B (2064);
The self-lubricating material A (202) and the spherical surface inside the ball pin B (203) are sprayed with a lubricant C (209), and the self-lubricating material B (204) and the spherical surface inside the ball pin B (203) are sprayed with a lubricant D (210);
and after the cover plate A (103) and the cover plate B (205) are respectively connected through threads, a press machine is adopted for edge covering and compaction.
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 CN111765164A (en) | 2020-10-13 |
| CN111765164B true 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 (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7264398B2 (en) * | 2001-08-24 | 2007-09-04 | The Boeing Company | Truck pivot joint bearing and method of lubricating |
| CN101449087B (en) * | 2005-08-25 | 2012-01-25 | 费德罗-莫格尔公司 | 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 |
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2020
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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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| CN111765164A (en) | 2020-10-13 |
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