CN112032186B - Lubricated round pin axle limit structure of equipartition formula - Google Patents
Lubricated round pin axle limit structure of equipartition formula Download PDFInfo
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- CN112032186B CN112032186B CN202010886358.4A CN202010886358A CN112032186B CN 112032186 B CN112032186 B CN 112032186B CN 202010886358 A CN202010886358 A CN 202010886358A CN 112032186 B CN112032186 B CN 112032186B
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- pin shaft
- oil
- main body
- oil outlet
- hole
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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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G11/00—Resilient suspensions characterised by arrangement, location or kind of springs
- B60G11/02—Resilient suspensions characterised by arrangement, location or kind of springs having leaf springs only
- B60G11/10—Resilient suspensions characterised by arrangement, location or kind of springs having leaf springs only characterised by means specially adapted for attaching the spring to axle or sprung part of the vehicle
- B60G11/12—Links, pins, or bushes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G21/00—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces
- B60G21/02—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces permanently interconnected
- B60G21/04—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces permanently interconnected mechanically
- B60G21/05—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces permanently interconnected mechanically between wheels on the same axle but on different sides of the vehicle, i.e. the left and right wheel suspensions being interconnected
- B60G21/055—Stabiliser bars
- B60G21/0551—Mounting means therefor
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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
-
- 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
- F16N—LUBRICATING
- F16N1/00—Constructional modifications of parts of machines or apparatus for the purpose of lubrication
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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
- F16N—LUBRICATING
- F16N21/00—Conduits; Junctions; Fittings for lubrication apertures
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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
- F16C2326/00—Articles relating to transporting
- F16C2326/01—Parts of vehicles in general
- F16C2326/05—Vehicle suspensions, e.g. bearings, pivots or connecting rods used therein
Abstract
A uniformly-distributed lubricating pin shaft limiting structure comprises a pin shaft main body, a fixed workpiece and a rotating workpiece, wherein one end of the pin shaft main body is fixedly connected with the fixed workpiece, and the other end of the pin shaft main body is in limiting fit with the rotating workpiece; the novel oil-discharging type rotary workpiece pin is characterized in that a circular boss coaxial with the pin shaft main body is arranged at one end, close to the rotary workpiece, of the pin shaft main body, an oil duct is formed in the pin shaft main body along the central axis, the oil duct is communicated with a first oil outlet hole formed in the outer wall of the pin shaft main body and a second oil outlet hole formed in the outer wall of the circular boss, the first oil outlet holes are evenly distributed in the outer wall of the pin shaft main body along the circumference, and the second oil outlet holes are evenly distributed in the outer. The design is simple in structure and even in lubrication, can provide even lubrication for all parts of the pin shaft in a working state, and avoids abrasion of the pin shaft limiting structure.
Description
Technical Field
The invention relates to a chassis limiting and lubricating structure, in particular to a uniformly-distributed lubricating pin shaft limiting structure, and particularly relates to a pin shaft limiting structure suitable for uniformly-distributed lubrication between an automobile frame and a suspension plate spring.
Background
The pin shaft structure is widely applied among various components of the prior steel plate spring suspension system and the transverse stabilizer bar system of the vehicle. In the practical application process of the pin shaft structures, the automobile plate springs, the transverse stabilizer bars and other structures can vibrate along with the automobile body in the driving process, so that all parts of the pin shaft connecting structures can move along with the automobile body, the pin shafts can easily rotate and rub with other parts, after the pin shaft connecting structures are used for a long time, the cylindrical pin shafts can be abraded, gaps generated by abrasion can enable the pin shafts to be loosened to aggravate the loss of the pin shafts, abnormal sound is caused to be used, and the service life of the pin shafts can be shortened.
The existing pin shaft connecting structure has the problem of uneven lubrication, and cannot provide enough effective lubrication for the pin shaft, particularly, in the working state, the pin shaft connecting structure is difficult to provide uniform lubrication for the part in rotary contact with the pin shaft, and the hidden trouble of functional damage caused by part failure exists.
Disclosure of Invention
The invention aims to solve the problem that the limiting structure in the prior art cannot provide enough effective lubrication for a pin shaft, and provides a pin shaft limiting structure which can provide uniform lubrication for all parts of the pin shaft in a working state.
In order to achieve the above purpose, the technical solution of the invention is as follows:
a pin shaft limiting structure with uniform distribution type lubrication comprises a pin shaft main body, a fixed workpiece and a rotating workpiece;
one end of the pin shaft main body is fixedly connected with the fixed workpiece, and the other end of the pin shaft main body is in limit fit with the rotating workpiece;
an oil duct is formed in the pin shaft main body along the central axis, an inlet of the oil duct is positioned at one end, connected with the fixed workpiece, of the pin shaft main body, and the oil duct is communicated with a plurality of oil outlet holes;
one end of the pin shaft main body, which is close to the rotating workpiece, is provided with a circular boss which is coaxial with the pin shaft main body, and the circular boss is in rotating fit with the rotating workpiece;
the oil outlet includes a plurality of equipartitions in the first oil outlet of round pin axle main part outer wall and a plurality of equipartitions in the second oil outlet of circular boss outer wall, first oil outlet is at round pin axle main part outer wall along circumference evenly distributed, the second oil outlet is at circular boss outer wall along circumference evenly distributed, and first oil outlet and second oil outlet all are linked together with the oil duct.
The rotary workpiece comprises a rotary seat and a connecting sleeve which are of an integrated structure, a pin shaft hole and a limiting hole are sequentially formed in the middle of the rotary workpiece from one side of the connecting sleeve to one side of the rotary seat, the pin shaft hole is communicated with the limiting hole, the diameter of the pin shaft hole is larger than that of the limiting hole, the pin shaft hole is in rotating fit with the pin shaft main body, and the limiting hole is in rotating fit with the circular boss.
The fixing device is characterized in that a through hole is formed in the fixing workpiece, mounting holes are symmetrically formed in two sides of the through hole, the pin shaft main body penetrates through the through hole to be matched with the fixing workpiece in a limiting mode, an annular mounting plate is fixedly connected to the middle of the pin shaft main body, bolt holes corresponding to the mounting holes are symmetrically formed in the annular mounting plate, and fastening bolts are arranged in the bolt holes and sequentially penetrate through the bolt holes and the mounting holes and fixedly connect the annular mounting plate with the fixing workpiece.
The pin shaft main body is provided with an annular groove, the annular groove comprises a first annular groove formed in the outer wall of the pin shaft main body and a second annular groove formed in the outer wall of the circular boss, the oil outlet end of the first oil outlet hole is located in the first annular groove, and the oil outlet end of the second oil outlet hole is located in the second annular groove;
the joint of the inner side wall of the first annular groove and the outer wall of the pin shaft main body is in smooth transition; the joint of the inner side wall of the second annular groove and the outer wall of the circular boss is in smooth transition.
The oil gun connecting groove is formed in one end, close to the fixed workpiece, of the pin shaft main body, the oil gun connecting groove 16 is communicated with the oil duct, internal threads are formed in the inner wall of the oil gun connecting groove, and the oil gun connecting groove is in threaded fit with a lubricating oil gun.
The outer wall of the pin shaft main body is provided with 8 first oil outlet holes, and oil outlet ends of the first oil outlet holes are uniformly distributed on the circumference of the outer wall of the pin shaft main body; 8 second oil outlets are formed in the outer wall of the circular boss, and oil outlet ends of the second oil outlets are uniformly distributed on the circumference of the outer wall of the circular boss.
The oil collecting groove is formed in the surface of the top of the annular mounting plate and is tightly attached to the outer wall of the pin shaft main body, an oil return channel is formed in the annular mounting plate, the oil inlet end of the oil return channel is communicated with the oil collecting groove, the oil outlet end of the oil return channel is located at the bottom of the annular mounting plate, an annular sealing ring groove is formed in the periphery of the oil outlet end of the oil return channel, and a rubber sealing ring matched with the annular sealing ring groove is arranged in the sealing ring groove;
the oil return hole is formed in the fixed workpiece, an oil inlet of the oil return hole is communicated with an oil outlet of the oil return channel, an oil outlet of the oil return hole is located on one side, far away from the rotating workpiece, of the fixed workpiece, and an oil outlet of the oil return hole is connected with an oil discharge pipeline.
The fixed workpiece is fixedly connected with an automobile frame, and the rotating workpiece is a part of a plate spring suspension.
The fixed workpiece is fixedly connected with an automobile axle, and the rotating workpiece is a part of the transverse stabilizer bar.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the uniformly-distributed lubricating pin shaft limiting structure, the end part of the pin shaft main body is provided with the circular boss which is coaxial with the pin shaft main body, the pin shaft main body and the circular boss which are of an integrated structure are in rotary fit with a rotary workpiece, and the round boss is arranged to enable the pin shaft main body and the rotary workpiece to be in limiting fit in the axial direction; and the outer wall of the pin shaft main body and the outer wall of the circular boss are respectively provided with a first oil outlet and a second oil outlet, so that the pin shaft main body and the circular boss are fully lubricated, and the condition that the pin shaft is abraded due to uneven lubrication is avoided. Therefore, the round boss is arranged, the outer walls of the pin shaft main body and the round boss are provided with oil outlets, and the pin shaft and the rotating workpiece are in limited fit in the axial direction while all parts of the pin shaft can be lubricated.
2. According to the uniformly-distributed lubricating pin shaft limiting structure, a pin shaft hole and a limiting hole are sequentially formed in the middle of a rotating workpiece from one side of a connecting sleeve to one side of a rotating seat, and a round boss is arranged on a pin shaft main body; the pin shaft main body is in rotating fit with the pin shaft hole, the round boss is in rotating fit with the limiting hole, the pin shaft main body and the rotating workpiece are limited in the axial direction, and the pin shaft main body can rotate relative to the rotating workpiece. Therefore, the design can ensure that two parts connected by the limiting structure can not generate extrusion collision due to plastic deformation, and simultaneously can ensure that the two parts connected by the limiting structure can rotate relatively, and the structure is simple and the function is stable.
3. According to the uniformly-distributed-type-lubricating pin shaft limiting structure, the first oil outlet hole in the outer wall of the pin shaft main body and the second oil outlet hole in the outer wall of the circular boss are uniformly distributed along the circumference, so that the pin shaft main body and the outer wall of the circular boss can be lubricated more uniformly. Therefore, this design evenly distributed's first oil outlet and second oil outlet make the lubrication of round pin axle more even, and lubricated effectual, the reliability is higher.
4. According to the uniformly-distributed lubricating pin shaft limiting structure, the oil outlet ends of the first oil outlet hole and the second oil outlet hole are respectively positioned in the first annular groove and the second annular groove, and the joint of the inner side wall of the first annular groove and the outer wall of the pin shaft main body is in smooth transition; the smooth transition of the connection part of the inner side wall of the second annular groove and the outer wall of the circular boss enables lubricating oil to flow into a gap between the pin shaft main body and the rotating workpiece from the inside of the groove more easily, and the pin shaft is lubricated more fully. Therefore, the joint of the inner side wall of the annular groove and the outer wall of the pin shaft in the design is in smooth transition, so that the pin shaft is more fully lubricated.
5. According to the uniformly-distributed-type-lubricating pin shaft limiting structure, the annular oil collecting groove is formed in the upper surface of the annular mounting plate, so that redundant grease overflowing from a gap between the outer wall of the pin shaft and a rotating workpiece can be collected and discharged through the oil return channel and the oil return hole in sequence, and lubricating oil is prevented from overflowing and leaking. Therefore, the design collects overflowed lubricating oil through the oil collecting groove and discharges the lubricating oil through the oil return channel and the oil return hole, and the lubricating oil is prevented from overflowing and leaking.
Drawings
Fig. 1 is a cross-sectional view of the present invention.
Fig. 2 is a cross-sectional view of the pin body of fig. 1.
Fig. 3 is a front view of the pin body.
Fig. 4 is a partially enlarged view of a in fig. 3.
Fig. 5 is a top view of the pin body of fig. 1.
Fig. 6 is a schematic structural diagram of embodiment 3 of the present invention.
In the figure: the oil-saving bolt comprises a pin shaft main body 1, a circular boss 11, an oil duct 12, an oil outlet 13, a first oil outlet 131, a second oil outlet 132, an annular groove 14, a first annular groove 141, a second annular groove 142, an annular mounting plate 15, a bolt hole 151, a fastening bolt 152, a fuel gun connecting groove 16, an oil collecting groove 17, an oil return channel 18, a sealing ring groove 19, a rubber sealing ring 191, a fixed workpiece 2, a through hole 21, a mounting hole 22, an oil return hole 23, a rotating workpiece 3, a connecting sleeve 31, a rotating base 32, a pin shaft hole 33 and a limiting hole 34.
Detailed Description
The present invention will be described in further detail with reference to the following description and embodiments in conjunction with the accompanying drawings.
Referring to fig. 1 to 6, a pin shaft limiting structure with uniform lubrication comprises a pin shaft main body 1, a fixed workpiece 2 and a rotating workpiece 3;
one end of the pin shaft main body 1 is fixedly connected with the fixed workpiece 2, and the other end of the pin shaft main body 1 is in limit fit with the rotating workpiece 3;
an oil duct 12 is formed in the pin shaft main body 1 along the central axis, an inlet of the oil duct 12 is positioned at one end, connected with the fixed workpiece 2, of the pin shaft main body 1, and the oil duct 12 is communicated with a plurality of oil outlet holes 13;
one end of the pin shaft main body 1 close to the rotating workpiece 3 is provided with a circular boss 11 which is coaxial with the pin shaft main body 1, and the circular boss 11 is in rotating fit with the rotating workpiece 3;
the oil outlet 13 includes that a plurality of equipartitions are in the first oil outlet 131 of 1 outer wall of round pin axle main part and a plurality of equipartitions in the second oil outlet 132 of 11 outer walls of circular boss, first oil outlet 131 is at 1 outer wall of round pin axle main part along circumference evenly distributed, second oil outlet 132 is at 11 outer walls of circular boss along circumference evenly distributed, and first oil outlet 131 and second oil outlet 132 all are linked together with oil duct 12.
Be equipped with through-hole 21 on the fixed work piece 2, the through-hole 21 bilateral symmetry is equipped with mounting hole 22, round pin axle main part 1 passes through-hole 21 and the spacing cooperation of fixed work piece 2, round pin axle main part 1 middle part fixedly connected with annular mounting panel 15, the symmetrical bolt hole 151 corresponding with mounting hole 22 of having seted up on annular mounting panel 15, be equipped with fastening bolt 152 in the bolt hole 151, fastening bolt 152 passes bolt hole 151 and mounting hole 22 in proper order and with annular mounting panel 15 and fixed work piece 2 fixed connection.
The pin shaft body 1 is provided with an annular groove 14, the annular groove 14 comprises a first annular groove 141 formed in the outer wall of the pin shaft body 1 and a second annular groove 142 formed in the outer wall of the circular boss 11, the oil outlet end of the first oil outlet hole 131 is located in the first annular groove 141, and the oil outlet end of the second oil outlet hole 132 is located in the second annular groove 142;
the joint of the inner side wall of the first annular groove 141 and the outer wall of the pin shaft main body 1 is in smooth transition; the junction between the inner side wall of the second annular groove 142 and the outer wall of the circular boss 11 is in smooth transition.
The oil-filling gun connecting groove is formed in one end, close to the fixed workpiece 2, of the pin shaft main body 1, the oil-filling gun connecting groove 16 is communicated with the oil duct 12, internal threads are formed in the inner wall of the oil-filling gun connecting groove 16, and the oil-filling gun connecting groove 16 is in threaded fit with a lubricating oil-filling gun.
The outer wall of the pin shaft main body 1 is provided with 8 first oil outlet holes 131, and oil outlet ends of the first oil outlet holes 131 are uniformly distributed on the circumference of the outer wall of the pin shaft main body 1; 8 second oil outlet holes 132 are formed in the outer wall of the circular boss 11, and oil outlet ends of the second oil outlet holes 132 are uniformly distributed on the circumference of the outer wall of the circular boss 11.
The top surface of the annular mounting plate 15 is provided with an annular oil collecting groove 17, the oil collecting groove 17 is tightly attached to the outer wall of the pin shaft main body 1, the annular mounting plate 15 is provided with an oil return channel 18, the oil inlet end of the oil return channel 18 is communicated with the oil collecting groove 17, the oil outlet end of the oil return channel 18 is positioned at the bottom of the annular mounting plate 15, the periphery of the oil outlet end of the oil return channel 18 is provided with an annular sealing ring groove 19, and a rubber sealing ring 191 matched with the annular sealing ring groove is arranged in the sealing ring groove 19;
an oil return hole 23 is formed in the fixed workpiece 2, an oil inlet of the oil return hole 23 is communicated with an oil outlet of the oil return channel 18, an oil outlet of the oil return hole 23 is located on one side, away from the rotating workpiece 3, of the fixed workpiece, and an oil outlet of the oil return hole 23 is connected with an oil discharge pipeline.
The fixed workpiece 2 is fixedly connected with an automobile frame, and the rotating workpiece 3 is a part of a plate spring suspension.
The fixed workpiece 2 is fixedly connected with an automobile axle, and the rotating workpiece 3 is a part of the transverse stabilizer bar.
The principle of the invention is illustrated as follows:
when the design is arranged, the fixed workpiece 2 can be fixedly connected with a frame or an axle, and the fixed workpiece 2 can be a plate spring, and also can be a transverse stabilizer bar or a drag link; the pin shaft main body 1 is fixedly connected with the fixed workpiece 2, the pin shaft main body 1 is in axial limiting fit with the rotating workpiece 3, and the rotating workpiece 3 can rotate relative to the pin shaft main body 1.
In a working state, the lubricating oil gun is in threaded connection with the oil gun connecting groove 16, lubricating oil flows into the oil channel 12 from the lubricating oil gun, flows out to a gap between the pin shaft body 1 and the pin shaft hole 33 through the first oil outlet holes 131 uniformly distributed on the outer wall of the pin shaft body 1, and flows out to a gap between the circular boss 11 and the limiting hole 34 through the second oil outlet holes 132 uniformly distributed on the outer wall of the circular boss 11, so that the pin shaft body 1 and the circular boss 11 are uniformly and sufficiently lubricated.
The middle part of the pin shaft main body 1 is fixedly connected with an annular mounting plate 15, the upper surface of the annular mounting plate 15 is provided with an annular oil collecting groove 17, redundant lubricating oil overflows downwards due to gravity, flows into the oil collecting groove 17 along the outer wall of the pin shaft main body 1, and flows out to an oil discharge pipeline through an oil return channel 18 communicated with the oil collecting groove 17 and an oil return hole 23 hermetically connected with the oil return channel 18 in sequence.
In the in-service use, fixed work piece 2 can only rotate relatively at certain angle within range with rotatory work piece 3, if the hole site sets up too little, thereby can lead to some positions to be unable fat liquoring all the time and influence lubricated effect, not only do not need to influence round pin axle intensity to a certain extent also if set up too many oil outlet hole sites, because of the work piece can be reciprocating motion relatively in work, the angle that the motion is minimum is about 30, relative rotation range 30 is 60, consequently, the hole site of first oil outlet 131 and second oil outlet 132 all sets up to 8, can reach even lubricated effect.
Example 1:
one end of the pin shaft main body 1 is fixedly connected with the fixed workpiece 2, and the other end of the pin shaft main body 1 is in limit fit with the rotating workpiece 3; an oil duct 12 is formed in the pin shaft main body 1 along the central axis, an inlet of the oil duct 12 is positioned at one end, connected with the fixed workpiece 2, of the pin shaft main body 1, and the oil duct 12 is communicated with a plurality of oil outlet holes 13; one end of the pin shaft main body 1 close to the rotating workpiece 3 is provided with a circular boss 11 which is coaxial with the pin shaft main body 1, and the circular boss 11 is in rotating fit with the rotating workpiece 3; the oil outlet 13 comprises a plurality of first oil outlets 131 uniformly distributed on the outer wall of the pin shaft main body 1 and a plurality of second oil outlets 132 uniformly distributed on the outer wall of the circular boss 11, the first oil outlets 131 are uniformly distributed on the outer wall of the pin shaft main body 1 along the circumference, the second oil outlets 132 are uniformly distributed on the outer wall of the circular boss 11 along the circumference, and the first oil outlets 131 and the second oil outlets 132 are both communicated with the oil duct 12; the rotary workpiece 3 comprises a rotary seat 32 and a connecting sleeve 31 which are of an integral structure, a pin shaft hole 33 and a limiting hole 34 are sequentially formed in the middle of the rotary workpiece 3 from one side of the connecting sleeve 31 to one side of the rotary seat 32, the pin shaft hole 33 is communicated with the limiting hole 34, the diameter of the pin shaft hole 33 is larger than that of the limiting hole 34, the pin shaft hole 33 is in rotating fit with the pin shaft main body 1, and the limiting hole 34 is in rotating fit with the circular boss 11; be equipped with through-hole 21 on the fixed work piece 2, the through-hole 21 bilateral symmetry is equipped with mounting hole 22, round pin axle main part 1 passes through-hole 21 and the spacing cooperation of fixed work piece 2, round pin axle main part 1 middle part fixedly connected with annular mounting panel 15, the symmetrical bolt hole 151 corresponding with mounting hole 22 of having seted up on annular mounting panel 15, be equipped with fastening bolt 152 in the bolt hole 151, fastening bolt 152 passes bolt hole 151 and mounting hole 22 in proper order and with annular mounting panel 15 and fixed work piece 2 fixed connection.
Example 2
Example 2 the basic content is the same as example 1, except that:
the pin shaft body 1 is provided with an annular groove 14, the annular groove 14 comprises a first annular groove 141 formed in the outer wall of the pin shaft body 1 and a second annular groove 142 formed in the outer wall of the circular boss 11, the oil outlet end of the first oil outlet hole 131 is located in the first annular groove 141, and the oil outlet end of the second oil outlet hole 132 is located in the second annular groove 142; the joint of the inner side wall of the first annular groove 141 and the outer wall of the pin shaft main body 1 is in smooth transition; the joint of the inner side wall of the second annular groove 142 and the outer wall of the circular boss 11 is in smooth transition; the oil gun connecting groove 16 is formed in one end, close to the fixed workpiece 2, of the pin shaft main body 1, the oil gun connecting groove 16 is communicated with the oil duct 12, internal threads are formed in the inner wall of the oil gun connecting groove 16, and the oil gun connecting groove 16 is in threaded fit with a lubricating oil gun.
Example 3:
example 3 the basic content is the same as example 2, except that:
the top surface of the annular mounting plate 15 is provided with an annular oil collecting groove 17, the oil collecting groove 17 is tightly attached to the outer wall of the pin shaft main body 1, the annular mounting plate 15 is provided with an oil return channel 18, the oil inlet end of the oil return channel 18 is communicated with the oil collecting groove 17, the oil outlet end of the oil return channel 18 is positioned at the bottom of the annular mounting plate 15, the periphery of the oil outlet end of the oil return channel 18 is provided with an annular sealing ring groove 19, and a rubber sealing ring 191 matched with the annular sealing ring groove is arranged in the sealing ring groove 19; an oil return hole 23 is formed in the fixed workpiece 2, an oil inlet of the oil return hole 23 is communicated with an oil outlet of the oil return channel 18, an oil outlet of the oil return hole 23 is located on one side, away from the rotating workpiece 3, of the fixed workpiece, and an oil outlet of the oil return hole 23 is connected with an oil discharge pipeline.
Example 4:
example 4 the basic content is the same as example 3, except that:
the fixed workpiece 2 is fixedly connected with an automobile frame, and the rotating workpiece 3 is a part of a plate spring suspension.
Example 5:
example 5 differs from example 3 in the essential points that:
the fixed workpiece 2 is fixedly connected with an automobile axle, and the rotating workpiece 3 is a part of the transverse stabilizer bar.
Claims (8)
1. The utility model provides a lubricated round pin axle limit structure of equipartition formula, includes round pin axle main part (1), fixed work piece (2) and rotating workpiece (3), its characterized in that:
one end of the pin shaft main body (1) is fixedly connected with the fixed workpiece (2), and the other end of the pin shaft main body (1) is in limit fit with the rotating workpiece (3);
an oil duct (12) is formed in the pin shaft main body (1) along the central axis, an inlet of the oil duct (12) is located at one end, connected with the fixed workpiece (2), of the pin shaft main body (1), and the oil duct (12) is communicated with a plurality of oil outlet holes (13);
one end of the pin shaft main body (1) close to the rotating workpiece (3) is provided with a circular boss (11) coaxial with the pin shaft main body (1), and the circular boss (11) is in rotating fit with the rotating workpiece (3);
the oil outlet holes (13) comprise a plurality of first oil outlet holes (131) uniformly distributed on the outer wall of the pin shaft main body (1) and a plurality of second oil outlet holes (132) uniformly distributed on the outer wall of the circular boss (11), the first oil outlet holes (131) are uniformly distributed on the outer wall of the pin shaft main body (1) along the circumference, the second oil outlet holes (132) are uniformly distributed on the outer wall of the circular boss (11) along the circumference, and the first oil outlet holes (131) and the second oil outlet holes (132) are communicated with the oil duct (12);
rotatory work piece (3) roating seat (32) and adapter sleeve (31) including body structure, round pin shaft hole (33) and spacing hole (34) have been seted up in proper order to roating seat (32) one side from adapter sleeve (31) one side in the middle part of rotatory work piece (3), round pin shaft hole (33) are linked together with spacing hole (34), and the diameter in round pin shaft hole (33) is greater than the diameter in spacing hole (34), round pin shaft hole (33) and round pin axle main part (1) normal running fit, spacing hole (34) and circular boss (11) normal running fit.
2. The evenly distributed lubricating pin shaft limiting structure of claim 1, wherein:
be equipped with through-hole (21) on fixed work piece (2), through-hole (21) bilateral symmetry is equipped with mounting hole (22), round pin axle main part (1) passes through-hole (21) and fixed work piece (2) spacing cooperation, round pin axle main part (1) middle part fixedly connected with annular mounting panel (15), set up bolt hole (151) corresponding with mounting hole (22) of symmetry on annular mounting panel (15), be equipped with fastening bolt (152) in bolt hole (151), fastening bolt (152) pass bolt hole (151) and mounting hole (22) in proper order and with annular mounting panel (15) and fixed work piece (2) fixed connection.
3. The uniformly-distributed lubricating pin shaft limiting structure according to claim 1 or 2, characterized in that:
the pin shaft main body (1) is provided with an annular groove (14), the annular groove (14) comprises a first annular groove (141) formed in the outer wall of the pin shaft main body (1) and a second annular groove (142) formed in the outer wall of the circular boss (11), the oil outlet end of the first oil outlet hole (131) is located in the first annular groove (141), and the oil outlet end of the second oil outlet hole (132) is located in the second annular groove (142);
the joint of the inner side wall of the first annular groove (141) and the outer wall of the pin shaft main body (1) is in smooth transition; the joint of the inner side wall of the second annular groove (142) and the outer wall of the circular boss (11) is in smooth transition.
4. The evenly distributed lubricated pin shaft limiting structure of claim 3, wherein:
the novel oil-filling joint is characterized in that a filling gun connecting groove (16) is formed in one end, close to the fixed workpiece (2), of the pin shaft main body (1), the filling gun connecting groove (16) is communicated with the oil duct (12), internal threads are formed in the inner wall of the filling gun connecting groove (16), and the filling gun connecting groove (16) is in threaded fit with a lubricating oil filling gun.
5. The evenly distributed lubricated pin shaft limiting structure of claim 4, wherein:
the outer wall of the pin shaft main body (1) is provided with 8 first oil outlet holes (131), and oil outlet ends of the first oil outlet holes (131) are uniformly distributed on the circumference of the outer wall of the pin shaft main body (1); 8 second oil outlet holes (132) are formed in the outer wall of the circular boss (11), and oil outlet ends of the second oil outlet holes (132) are uniformly distributed on the circumference of the outer wall of the circular boss (11).
6. The evenly distributed lubricated pin shaft limiting structure of claim 2, wherein:
an annular oil collecting groove (17) is formed in the surface of the top of the annular mounting plate (15), the oil collecting groove (17) is tightly attached to the outer wall of the pin shaft main body (1), an oil return channel (18) is formed in the annular mounting plate (15), the oil inlet end of the oil return channel (18) is communicated with the oil collecting groove (17), the oil outlet end of the oil return channel (18) is located at the bottom of the annular mounting plate (15), an annular sealing ring groove (19) is formed in the periphery of the oil outlet end of the oil return channel (18), and a rubber sealing ring (191) matched with the annular sealing ring groove is arranged in the sealing ring groove (19);
the oil return hole (23) is formed in the fixed workpiece (2), an oil inlet of the oil return hole (23) is communicated with an oil outlet of the oil return channel (18), an oil outlet of the oil return hole (23) is located on one side, far away from the rotating workpiece (3), of the fixed workpiece, and an oil outlet of the oil return hole (23) is connected with an oil discharge pipeline.
7. The evenly distributed lubricated pin shaft limiting structure of claim 6, wherein:
the fixed workpiece (2) is fixedly connected with an automobile frame, and the rotating workpiece (3) is part of a plate spring suspension.
8. The evenly distributed lubricated pin shaft limiting structure of claim 6, wherein:
the fixed workpiece (2) is fixedly connected with an automobile axle, and the rotating workpiece (3) is a part of the transverse stabilizer bar.
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| CN202010886358.4A CN112032186B (en) | 2020-08-28 | 2020-08-28 | Lubricated round pin axle limit structure of equipartition formula |
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| CN202010886358.4A CN112032186B (en) | 2020-08-28 | 2020-08-28 | Lubricated round pin axle limit structure of equipartition formula |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114211921A (en) * | 2021-11-29 | 2022-03-22 | 北京航天发射技术研究所 | Double-cross-arm independent suspension system for ultra-heavy vehicle |
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|---|---|
| CN112032186A (en) | 2020-12-04 |
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