CN109322935B - Universal joint for automobile power transmission - Google Patents
Universal joint for automobile power transmission Download PDFInfo
- Publication number
- CN109322935B CN109322935B CN201811500636.7A CN201811500636A CN109322935B CN 109322935 B CN109322935 B CN 109322935B CN 201811500636 A CN201811500636 A CN 201811500636A CN 109322935 B CN109322935 B CN 109322935B
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- Prior art keywords
- oil
- hole
- cross axle
- universal joint
- cavity
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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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
- F16D3/16—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts
- F16D3/26—Hooke's joints or other joints with an equivalent intermediate member to which each coupling part is pivotally or slidably connected
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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
- 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
- F16N—LUBRICATING
- F16N2210/00—Applications
- F16N2210/04—Vehicles
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Details Of Gearings (AREA)
Abstract
The invention relates to the technical field of automobile accessories and discloses a universal joint for automobile power transmission, which comprises a cross axle main body, wherein an oil duct is formed in the cross axle main body, an oil filling hole communicated with the oil duct is formed in the cross axle main body, a mounting hole communicated with the oil filling hole is formed in the cross axle main body, and an oil nozzle is arranged in the mounting hole. Through the air flue, make the air cavity and the inner space intercommunication of cross axle main part, through the cavity, make air cavity and exhaust hole intercommunication, promote the sealed ball through the oiling head and move down, make the seal groove with exhaust hole and runner intercommunication, through the sealed hole, make runner and external intercommunication, thereby make cross axle main part inner space can with external intercommunication, can not produce the high pressure in the assurance cross axle main part, the degree of difficulty that lubricating oil pours into has been reduced, make the internal lubricating oil of pouring into cross axle increase, it is lubricated effectual, the life of cross axle universal joint has been prolonged.
Description
Technical Field
The invention relates to the technical field of automobile accessories, in particular to a universal joint for automobile power transmission.
Background
The automobile is one of the essential tools for riding instead of walk in modern people's life, and its power transmission system comprises engine, reduction gear, derailleur, universal joint transmission device etc. and wherein universal joint transmission device installs between derailleur output shaft and transaxle final drive input shaft, realizes variable angle power transmission to change the position of transmission axis direction. At present, a universal joint widely used in automobiles is a cross rigid universal joint, as shown in fig. 7 and 8, the universal joint comprises a cross shaft body and a shaft sleeve, the shaft sleeve is sleeved on two pairs of shaft necks of the cross shaft body, an oil passage is arranged in the cross shaft body, and an oil nozzle communicated with the oil passage is arranged between the two shaft necks. When the universal joint pin universal joint operates, lubricating oil is injected into the universal joint pin body through the oil nozzle, flows to the end face of the shaft neck in contact with the shaft sleeve through the oil channel, and is used for reducing friction between the shaft neck and the shaft sleeve and enhancing the flexibility of the universal joint pin shaft body. However, the existing cross axle universal joint still has the following problems in the using process:
1. the cross axle universal joint is closed and is not communicated with the outside, when lubricating oil is injected into the cross axle body, air in the cross axle universal joint cannot be discharged, so that the internal pressure of the cross axle universal joint is increased along with the increase of the injection amount of the lubricating oil, the difficulty of the injection of the lubricating oil is increased, the lubricating oil injected into the cross axle body is less, the lubricating effect is poor, and the cross axle universal joint is easy to damage.
2. Along with the increase of the inside lubricating oil of cross axle axis body, its inside pressure is bigger and bigger, makes the sealing member between axle sleeve and the axle journal produce the deformation, leads to lubricating oil to reveal, and the lubricating oil in the axle sleeve reduces, and the frictional force between axle journal and the axle sleeve increases, makes the axle sleeve rotate dumb, blocks the axle sleeve even, causes the driving danger.
Aiming at the problem of complaints, the invention provides a universal joint for automobile power transmission.
Disclosure of Invention
The universal joint for automobile power transmission can be communicated with the outside, so that high pressure cannot be generated in a cross shaft body, the difficulty of lubricating oil injection is reduced, the lubricating oil injected into the cross shaft body is increased, the lubricating effect is good, a shaft sleeve can flexibly rotate, the service life of the cross shaft universal joint is prolonged, and the driving safety is ensured.
The invention provides the following technical scheme: a universal joint for automobile power transmission comprises a cross axle main body, wherein an oil duct is arranged inside the cross axle main body, an oil filling hole communicated with the oil duct is arranged inside the cross axle main body, a mounting hole communicated with the oil filling hole is arranged inside the cross axle main body, an oil nozzle is arranged inside the mounting hole and is positioned between two adjacent end parts of the cross axle main body, a cavity is arranged at the bottom of the oil nozzle, a stand column is arranged inside the cavity, an oil filling cavity is arranged inside the stand column, a limiting part is arranged inside the oil filling cavity, an elastic part is arranged inside the limiting part, a sealing ball is fixedly connected to the top end of the elastic part, a sealing hole is arranged on the top surface of the oil nozzle, a flow passage communicated with the sealing hole is arranged inside the oil nozzle, a sealing groove communicated with the flow passage is arranged inside the oil nozzle, and an exhaust hole is arranged inside the oil nozzle, the two ends of the exhaust hole are communicated with the cavity and the sealing groove respectively, a pressing plate is fixedly sleeved outside the stand column, a gasket is arranged on the bottom surface of the pressing plate, an air cavity is arranged inside the mounting hole, an air passage is formed inside the cross shaft main body, one end of the air passage is communicated with the mounting hole, and a shaft sleeve is arranged at the end of the cross shaft main body.
Furthermore, the diameter value of the bottom end of the oil nozzle is larger than the outer diameter value of the stand column, and the diameter value of the end face of the pressing plate is the same as that of the bottom end of the oil nozzle.
Further, the inner diameter value of the oil filling hole is smaller than that of the mounting hole.
Furthermore, the diameter value of the top end of the oil nozzle is larger than that of the bottom end of the oil nozzle, and the top end of the oil nozzle is in a regular hexagon shape.
Further, the diameter value of the top end of the sealing hole is larger than that of the bottom end of the sealing hole.
Further, the seal groove is matched with the seal ball.
Furthermore, the inner diameter value of the exhaust hole is far smaller than that of the oil injection cavity.
The invention has the following beneficial effects:
1. through the air flue, make the air cavity and the inner space intercommunication of cross axle main part, through the cavity, make air cavity and exhaust hole intercommunication, promote the sealed ball through the oiling head and move down, make the seal groove with exhaust hole and runner intercommunication, through the sealed hole, make runner and external intercommunication, thereby make cross axle main part inner space can with external intercommunication, can not produce the high pressure in the assurance cross axle main part, the degree of difficulty that lubricating oil pours into has been reduced, make the internal lubricating oil of pouring into cross axle increase, it is lubricated effectual, the life of cross axle universal joint has been prolonged.
2. Through the arrangement that the inner space of the cross shaft main body can be communicated with the outside, high pressure cannot be generated inside the cross shaft main body, the problem that lubricating oil is leaked due to the fact that the pressure inside the cross shaft main body is too high and a sealing element between the shaft sleeve and the end portion of the cross shaft main body is deformed is avoided, sufficient lubricating oil is contained in the shaft sleeve, the shaft sleeve can flexibly rotate, and driving safety is guaranteed.
3. Through the setting that the downthehole footpath value of exhaust far is less than oiling chamber internal diameter value, the resistance that makes lubricating oil get into exhaust hole is far greater than the resistance that lubricating oil got into the oiling chamber, and then make lubricating oil get into the inside of cross main part through the oiling chamber preferentially, the inside air compression of cross main part, the pressure increase, gaseous air passage, air cavity and cavity entering exhaust hole, increase the inside atmospheric pressure in exhaust hole, make lubricating oil injection in-process can not get into inside the exhaust hole, and then when making the gassing operation, the inside high-pressure gas in exhaust hole can pass through the seal groove fast, runner and sealed hole discharge, thereby reduce the inside atmospheric pressure of cross main part.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a front view of FIG. 1;
FIG. 3 is an enlarged view of the structure at A of the present invention;
FIG. 4 is an external view of the nozzle tip of FIG. 1;
FIG. 5 is a schematic view of the internal structure of FIG. 4;
FIG. 6 is a schematic view of the internal structure of the nozzle tip in use;
FIG. 7 is an external view of a conventional universal joint pin joint;
FIG. 8 is a schematic view of the internal structure of FIG. 7;
FIG. 9 is a schematic view of the internal structure of the nozzle tip of FIG. 8;
fig. 10 is a schematic view of the internal structure of the oil nipple of fig. 8 in use.
In the figure: 1-a cross shaft main body, 2-an oil channel, 3-an oil injection hole, 4-a mounting hole, 5-an oil nozzle, 6-a cavity, 7-a column, 8-an oil injection cavity, 9-a limiting piece, 10-an elastic piece, 11-a sealing ball, 12-a sealing hole, 13-a flow channel, 14-a sealing groove, 15-an exhaust hole, 16-a pressing plate, 17-a gasket, 18-an air cavity, 19-an air passage and 20-a shaft sleeve.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-10, a universal joint for automobile power transmission includes a cross axle main body 1, an oil duct 2 is disposed inside the cross axle main body 1, an oil filling hole 3 communicated with the oil duct 2 is disposed inside the cross axle main body 1, a mounting hole 4 communicated with the oil filling hole 3 is disposed inside the cross axle main body 1, an oil nipple 5 is disposed inside the mounting hole 4, an oil filling head is disposed at a top end of the oil nipple 5, the oil nipple 5 is located between two adjacent end portions of the cross axle main body 1, a cavity 6 is disposed at a bottom of the oil nipple 5, a vertical column 7 is disposed inside the cavity 6, an oil filling cavity 8 is disposed inside the vertical column 7, a limiting member 9 is disposed inside the oil filling cavity 8, an elastic member 10 is disposed inside the limiting member 9, a sealing ball 11 is fixedly connected to a top end of the elastic member 10, and a sealing hole 12 is disposed on a top surface of the oil nipple 5, runner 13 with sealed hole 12 intercommunication is seted up to glib 5's inside, sealed hole 12 and runner 13 all with oiling head looks adaptation, make the head of oiling closely laminate with sealed hole 12 and runner 13, the seal groove 14 with runner 13 intercommunication is seted up to glib 5's inside, exhaust hole 15 has been seted up to glib 5's inside, exhaust hole 15's both ends communicate with cavity 6 and seal groove 14 respectively, the external fixation of stand 7 has cup jointed clamp plate 16, the bottom surface of clamp plate 16 is equipped with packing ring 17, the inside of mounting hole 4 is equipped with air cavity 18, air flue 19 has been seted up to the inside of cross main part 1, the one end and the mounting hole 4 intercommunication of air flue 19, the tip of cross main part 1 is equipped with axle sleeve 20.
The diameter value of the bottom end of the oil nozzle 5 is larger than the outer diameter value of the upright post 7, the diameter value of the end face of the pressing plate 16 is the same as the diameter value of the bottom end of the oil nozzle 5, an air cavity 18 is formed inside the mounting hole 4, an air passage 19 is communicated with the cavity 6 through the air cavity 18, and therefore the purpose that the inner space of the cross shaft main body 1 is communicated with the outside is achieved.
The inner diameter value of the oil filling hole 3 is smaller than that of the mounting hole 4, the mounting depth of the oil nozzle 5 is limited by the joint of the oil filling hole 3 and the mounting hole 4, and the air passage 19 is ensured to be communicated with the air cavity 18.
The diameter value on 5 tops of glib talker is greater than the diameter value of 5 bottoms of glib talker, and the top of glib talker 5 is regular hexagon, and the mode when making installation glib talker 5 is more convenient.
The diameter value at the top end of the sealing hole 12 is larger than that at the bottom end of the sealing hole 12, so that the oil injection head can be tightly attached to the inner surface of the sealing hole 12, and the leakage of lubricating oil from the joint of the oil injection head and the oil nozzle 5 is avoided.
The sealing groove 14 is matched with the sealing ball 11, so that the flow channel 13 can be completely sealed when the sealing ball 11 is tightly attached to the sealing groove 14, and the lubricating oil is prevented from leaking from the flow channel 13.
The internal diameter value of exhaust hole 15 is far less than the internal diameter value of annotating the oil pocket 8, makes the resistance that lubricating oil got into exhaust hole 15 be far greater than the resistance that lubricating oil got into annotating the oil pocket 8, and then makes lubricating oil get into the inside of cross main part 1 through annotating the oil pocket 8 preferentially, avoids lubricating oil to plug up exhaust hole 15, and lubricating oil spun problem occasionally bleeds.
When the cross axle main body 1 is used, the oil injection head is aligned with the sealing hole 12 and the flow channel 13 firstly, then the oil injection head is pressed downwards, the oil injection head pushes the sealing ball 11 to move downwards, the sealing ball 11 is separated from the sealing groove 14, then lubricating oil is injected into the cross axle main body 1 through the oil injection head, because the inner diameter value of the exhaust hole 15 is far smaller than the inner diameter value of the oil injection cavity 8, the resistance of the lubricating oil entering the exhaust hole 15 is far larger than the resistance of the lubricating oil entering the oil injection cavity 8, the lubricating oil preferentially enters the interior of the cross axle main body 1 through the oil injection cavity 8, the air in the cross axle main body 1 is compressed, the pressure is increased, the air enters the exhaust hole 15 through the air channel 19, the air cavity 18 and the cavity 6, the air pressure in the exhaust hole 15 is increased, the lubricating oil cannot enter the interior of the exhaust hole 15 in the injection process, when the lubricating oil injection resistance is, The runner 13 and the sealing hole 12 are discharged, the air bleeding operation is completed, so that the air pressure inside the cross shaft main body 1 is reduced, the problem that a sealing element between the shaft sleeve 20 and the end part of the cross shaft main body 1 is deformed to cause leakage of lubricating oil is solved, the difficulty of lubricating oil injection is reduced, the lubricating oil injected into the cross shaft is increased, the lubricating effect is good, the service life of the cross shaft universal joint is prolonged, the oil injection head is pressed downwards again to continue to inject the lubricating oil, the operation is repeated until the inside of the cross shaft main body 1 is filled with the lubricating oil, the oil injection head is taken out, the sealing ball 11 moves upwards under the action of the elastic force of the elastic element 10, the sealing ball 11 is attached to the sealing groove 14, and the exhaust hole 15 and the runner 13 are blocked.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides a universal joint for automobile power transmission, includes cross main part (1), its characterized in that: the oil duct (2) is arranged in the cross axle main body (1), the oil filling hole (3) communicated with the oil duct (2) is arranged in the cross axle main body (1), the mounting hole (4) communicated with the oil filling hole (3) is arranged in the cross axle main body (1), the oil nozzle (5) is arranged in the mounting hole (4), the oil nozzle (5) is positioned between two adjacent end parts of the cross axle main body (1), the bottom of the oil nozzle (5) is provided with the cavity (6), the cavity (6) is internally provided with the stand column (7), the oil filling cavity (8) is arranged in the stand column (7), the limiting part (9) is arranged in the oil filling cavity (8), the elastic part (10) is arranged in the limiting part (9), the top end of the elastic part (10) is fixedly connected with the sealing ball (11), the sealing hole (12) is arranged on the top surface of the oil nozzle (5), runner (13) with sealed hole (12) intercommunication are seted up to the inside of glib talker (5), seal groove (14) with runner (13) intercommunication are seted up to the inside of glib talker (5), exhaust hole (15) have been seted up to the inside of glib talker (5), the both ends of exhaust hole (15) communicate with cavity (6) and seal groove (14) respectively, the fixed cover in outside of stand (7) has clamp plate (16), the bottom surface of clamp plate (16) is equipped with packing ring (17), the inside of mounting hole (4) is equipped with air cavity (18), air flue (19) have been seted up to the inside of cross axle main part (1), the one end and the mounting hole (4) intercommunication of air flue (19), the tip of cross axle main part (1) is equipped with axle sleeve (20).
2. The universal joint for automobile power transmission according to claim 1, characterized in that: the diameter value of glib (5) bottom is greater than the external diameter value of stand (7), the diameter value of clamp plate (16) terminal surface is the same with the diameter value of glib (5) bottom.
3. The universal joint for automobile power transmission according to claim 1, characterized in that: the inner diameter value of the oil filling hole (3) is smaller than that of the mounting hole (4).
4. The universal joint for automobile power transmission according to claim 1, characterized in that: the diameter value at the top end of the oil nozzle (5) is larger than that at the bottom end of the oil nozzle (5), and the top end of the oil nozzle (5) is in a regular hexagon shape.
5. The universal joint for automobile power transmission according to claim 1, characterized in that: the diameter value of the top end of the sealing hole (12) is larger than that of the bottom end of the sealing hole (12).
6. The universal joint for automobile power transmission according to claim 1, characterized in that: the sealing groove (14) is matched with the sealing ball (11).
7. The universal joint for automobile power transmission according to claim 1, characterized in that: the inner diameter value of the exhaust hole (15) is far smaller than that of the oil injection cavity (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811500636.7A CN109322935B (en) | 2018-12-10 | 2018-12-10 | Universal joint for automobile power transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811500636.7A CN109322935B (en) | 2018-12-10 | 2018-12-10 | Universal joint for automobile power transmission |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109322935A CN109322935A (en) | 2019-02-12 |
| CN109322935B true CN109322935B (en) | 2020-05-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811500636.7A Active CN109322935B (en) | 2018-12-10 | 2018-12-10 | Universal joint for automobile power transmission |
Country Status (1)
| Country | Link |
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| CN (1) | CN109322935B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111322303B (en) * | 2020-03-12 | 2022-03-29 | 江苏松林汽车零部件有限公司 | Crankshaft for engine |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204900578U (en) * | 2015-08-04 | 2015-12-23 | 浙江万康机械有限公司 | Automobile -used cross axle |
| CN207333483U (en) * | 2017-09-05 | 2018-05-08 | 重庆万可阳车辆配件制造有限公司 | A kind of universal joint feeding lubricating device |
| CN108412909A (en) * | 2018-05-31 | 2018-08-17 | 湖北忠诚机械制造股份有限公司 | Universal-joint cross trunnion |
-
2018
- 2018-12-10 CN CN201811500636.7A patent/CN109322935B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204900578U (en) * | 2015-08-04 | 2015-12-23 | 浙江万康机械有限公司 | Automobile -used cross axle |
| CN207333483U (en) * | 2017-09-05 | 2018-05-08 | 重庆万可阳车辆配件制造有限公司 | A kind of universal joint feeding lubricating device |
| CN108412909A (en) * | 2018-05-31 | 2018-08-17 | 湖北忠诚机械制造股份有限公司 | Universal-joint cross trunnion |
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| CN109322935A (en) | 2019-02-12 |
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Effective date of registration: 20200421 Address after: 311200 Xinhua, ningwei street, Xiaoshan District, Hangzhou City, Zhejiang Province Applicant after: Hangzhou Yongchao Machinery Co., Ltd Address before: 310016 Huajiachi 78, Jianggan District, Hangzhou City, Zhejiang Province Applicant before: Xu Wenjun |
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