CN217440620U - Universal joint for automobile transmission system - Google Patents
Universal joint for automobile transmission system Download PDFInfo
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- CN217440620U CN217440620U CN202122604276.9U CN202122604276U CN217440620U CN 217440620 U CN217440620 U CN 217440620U CN 202122604276 U CN202122604276 U CN 202122604276U CN 217440620 U CN217440620 U CN 217440620U
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- universal joint
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- fork
- cross shaft
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Abstract
The utility model belongs to the technical field of the universal joint, especially, be a universal joint for automobile transmission system, including transmission shaft fork, flange fork and cross axle, the upper and lower end of cross axle rotates respectively to be connected in transmission shaft fork inner wall upper and lower face, the flange fork is located transmission shaft fork left side, the cross axle front and back end rotates respectively to be connected in flange fork inner wall front and back face, transmission shaft fork upper and lower face and flange fork inner wall front and back face all open the mounting groove that corresponds with the cross axle, the inside outer one end of mounting groove is all embedded and is installed the bearing, cross axle front and back upper and lower end all inserts adjacent bearing inside, cross axle inside center is opened has the chamber of holding, the cross axle right side is equipped with the refueling subassembly, the refueling subassembly is used for adding lubricating oil to the chamber inside; the utility model discloses carry out the oil transportation lubrication to it at the universal joint during operation, avoid the lubricating oil evaporation of junction to reduce and influence lubricated effect, better prevent that lubricating oil from revealing simultaneously and influence lubricated effect.
Description
Technical Field
The utility model belongs to the technical field of the universal joint technique and specifically relates to a universal joint for automobile transmission system is related to.
Background
Automobile transmission system includes multiple part, for example transmission shaft, universal joint and shaft coupling etc, the universal joint is a driving medium that is used for changing direction of drive, current universal joint that is used for automobile transmission system is usually great with the friction between transmission shaft fork and the flange fork at its inside cross axle of during operation, the user need instil into to the junction of three and lubricate, and instil into the lubricating oil of three junction and reveal easily or because the too big evaporation of friction reduces at the universal joint during operation, thereby influence lubricated effect.
SUMMERY OF THE UTILITY MODEL
The utility model aims at the problem that exists with not enough to the aforesaid, provide a universal joint for automobile transmission system, carry out the oil transportation lubrication to it at the universal joint during operation, avoid the lubricating oil evaporation of junction to reduce and influence lubricated effect, the while better lubricating oil that prevents reveals influences lubricated effect.
In order to achieve the purpose, the adopted technical scheme is as follows:
a universal joint for an automobile transmission system comprises a transmission shaft fork, a flange fork and a cross shaft, wherein the upper end and the lower end of the cross shaft are rotatably connected to the upper surface and the lower surface of the inner wall of the transmission shaft fork;
mounting grooves corresponding to the cross shafts are formed in the upper surface and the lower surface of the transmission shaft fork and the front surface and the rear surface of the inner wall of the flange fork, bearings are embedded into the outer ends of the mounting grooves, and the front upper end and the rear lower end of each cross shaft are inserted into the adjacent bearings;
an accommodating cavity is formed in the center of the inner part of the cross shaft, an oiling component is arranged on the right side of the cross shaft and used for adding lubricating oil into the accommodating cavity;
the upper end, the lower end, the front end and the rear end of the inner wall of the accommodating cavity are communicated with flow passages, transition cavities are formed in the upper end, the lower end, the left end and the right end of the cross shaft, a plurality of oil outlet pipes penetrating to the outer wall of the cross shaft are communicated with the periphery of the inner wall of the transition cavities, the oil outlet pipes correspond to the inner wall of the bearing, one end, close to the outer part, of each flow passage is communicated with one end, close to the inner part, of each transition cavity, and the oil outlet pipes are used for lubricating the cross shaft;
sliding assemblies are arranged between the four runners and the four transition cavities and are used for controlling the connection and disconnection between the runners and the transition cavities;
four the inside one end of leaning on in of mounting groove all is equipped with the leak protection subassembly, the leak protection subassembly is used for avoiding lubricating oil to reveal.
Preferably, the refueling assembly comprises an oil inlet pipe and a cover, the oil inlet pipe is connected to the right end of the cross shaft, and the left end of the oil inlet pipe is communicated with the accommodating cavity.
Preferably, the lid threaded connection in advance oil pipe right-hand member, advance oil pipe right side edge and open and press from both sides tight annular, lid left side edge fusion has the tight rubber ring of clamp that corresponds with the tight annular of clamp, press from both sides tight rubber ring and insert inside the tight annular of clamp.
Preferably, the sliding assembly comprises a plug, a connecting plate and a spring, the end, close to the outer side, of the plug is spherical, and the diameter of the end, close to the outer side, of the plug is consistent with the inner diameter of the flow channel.
Preferably, the diameter of one end is less than its diameter of leaning on outer one end in the stifled head rest, the connecting plate connect in one end in the stifled head rest, the side channel has all been opened to runner inner wall left and right sides upper end, the connecting plate left and right ends respectively with control two side channel sliding connection, the spring is equipped with two, two the spring connect respectively in the connecting plate leans on one side left and right sides end in and adjacent between the one side in the side channel inner wall leans on.
Preferably, the leakage-proof assembly comprises a dustproof rubber ring and an oil seal, and the dustproof rubber ring and the oil seal are sequentially arranged from inside to outside.
Preferably, dustproof rubber ring connect in the cross is outside, the cross runs through out the oil blanket, the mounting groove inner wall is opened by interior one end has the dustproof annular that corresponds with dustproof rubber ring, dustproof rubber ring leans on outer one end to be the arc, dustproof rubber ring periphery inserts inside the dustproof annular.
The utility model has the advantages that: after the universal joint is installed in a transmission system, the transmission shaft fork, the flange fork and the cross shaft all rotate, when lubricating oil is severely evaporated during the movement of the universal joint, the plug can move outwards due to the centrifugal force generated during the rotation of the cross shaft, so that the outer end of the plug is inserted into the transition cavity, the diameter of the outer end of the plug is larger than that of the inner end of the plug, so that the flow channel and the transition cavity are in a communicated state at the moment, the lubricating oil in the accommodating cavity can enter the transition cavity through a gap between the flow channel and the plug and flow out of the oil outlet pipe and flow into the space between the bearing and the cross shaft, so that the bearing and the cross shaft are lubricated conveniently, the bearing and the cross shaft are continuously lubricated during the work of the universal joint, the lubricating oil at the joint is prevented from being evaporated and reduced to influence the lubricating effect, the inner end of the oil seal arranged in the mounting groove can better seal the outer end of the mounting groove, avoid the inside lubricating oil that leans on in the bearing of outer one end of mounting groove to reveal the lubricated effect of influence.
Drawings
Fig. 1 is a schematic view of the overall three-dimensional structure of the present invention;
FIG. 2 is a schematic view of the overall front view cross-section structure of the present invention;
fig. 3 is a schematic view of a partially enlarged structure a of fig. 1 according to the present invention;
fig. 4 is an enlarged schematic view of a part B of fig. 2 according to the present invention;
fig. 5 is a schematic diagram of a partially enlarged structure C in fig. 2 according to the present invention.
The labels in the figure are: the oil-gas bearing comprises a transmission shaft fork 101, a flange fork 102, a cross shaft 103, a mounting groove 104, a bearing 105, a cover 106, an oil inlet pipe 107, a clamping rubber ring 108, a clamping ring groove 109, an accommodating cavity 110, a flow passage 111, a dustproof rubber ring 112, an oil seal 113, a dustproof ring groove 114, an oil outlet pipe 115, a transition cavity 116, a plug 117, a connecting plate 118, a spring 119 and a side groove 120.
Detailed Description
As shown in fig. 1 to 5, the present application is a universal joint for an automobile transmission system, including a transmission shaft yoke 101, a flange yoke 102 and a cross 103, wherein upper and lower ends of the cross 103 are respectively rotatably connected to upper and lower surfaces of an inner wall of the transmission shaft yoke 101, the flange yoke 102 is located on a left side of the transmission shaft yoke 101, front and rear ends of the cross 103 are respectively rotatably connected to front and rear surfaces of an inner wall of the flange yoke 102, mounting grooves 104 corresponding to the cross 103 are respectively formed on the upper and lower surfaces of the transmission shaft yoke 101 and the front and rear surfaces of the inner wall of the flange yoke 102, bearings 105 are respectively embedded in the mounting grooves 104 at outer ends, the upper and lower ends of the front and rear of the cross 103 are respectively inserted into the adjacent bearings 105, an accommodating cavity 110 is formed in a center of the cross 103, an oiling component is arranged on a right side of the cross 103, the oiling component is used for adding lubricating oil into the accommodating cavity 110, the refueling assembly comprises an oil inlet pipe 107 and a cover 106, wherein the oil inlet pipe 107 is connected to the right end of the cross shaft 103, the left end of the oil inlet pipe 107 is communicated with the accommodating cavity 110, the cover 106 is in threaded connection with the right end of the oil inlet pipe 107, a clamping ring groove 109 is formed in the right edge of the oil inlet pipe 107, a clamping rubber ring 108 corresponding to the clamping ring groove 109 is welded to the left edge of the cover 106, the clamping rubber ring 108 is inserted into the clamping ring groove 109, a user can unscrew the cover 106 to separate the cover 106 from the oil inlet pipe 107, and the user can add lubricating oil into the accommodating cavity 110 through the oil inlet pipe 107, so that the cross shaft 103 can be lubricated conveniently;
when the user fills the accommodating cavity 110 with the lubricating oil, the user can re-screw the cover 106 into the oil inlet pipe 107, the clamping rubber ring 108 on the left edge of the cover 106 can be inserted into the clamping ring groove 109, and the clamping rubber ring 108 can be pressed along with the screwing of the cover 106, so that the sealing performance between the cover 106 and the oil inlet pipe 107 is effectively enhanced, and the lubricating oil is prevented from leaking from the oil inlet pipe 107 to influence the subsequent lubrication;
the upper end, the lower end, the front end and the rear end of the inner wall of the accommodating cavity 110 are communicated with flow passages 111, transition cavities 116 are formed in the upper end, the lower end, the left end and the right end of the cross shaft 103, a plurality of oil outlet pipes 115 penetrating to the outer wall of the cross shaft 103 are communicated with the periphery of the inner wall of the transition cavity 116, the oil outlet pipes 115 correspond to the inner wall of the bearing 105, the outer end of the flow passage 111 is communicated with the inner end of the transition cavity 116, the oil outlet pipes 115 are used for lubricating the cross shaft 103, sliding components are arranged between the four flow passages 111 and the four transition cavities 116 and used for controlling the connection and disconnection between the flow passage 111 and the transition cavities 116, each sliding component comprises a plug 117, a connecting plate 118 and a spring 119, the outer end of the plug 117 is spherical, the diameter of the outer end of the plug 117 is consistent with the inner diameter of the flow passage 111, and the diameter of the inner end of the plug 117 is smaller than the diameter of the outer end, the connecting plate 118 is connected to one end, close to the inside, of the plug 117, the upper ends of the left and right sides of the inner wall of the flow channel 111 are both provided with the side grooves 120, the left and right ends of the connecting plate 118 are respectively in sliding connection with the left and right side grooves 120, two springs 119 are provided, the two springs 119 are respectively connected between the left and right ends of one side, close to the inside, of the connecting plate 118 and one side, close to the inside, of the inner wall of the adjacent side groove 120, after the universal joint is installed in a transmission system, the transmission shaft fork 101, the flange fork 102 and the cross shaft 103 all rotate, when the universal joint moves violently and lubricating oil evaporates more, the plug 117 is moved outwards by centrifugal force generated when the cross shaft 103 rotates, so that the end, close to the outside, of the plug 117 is inserted into the transition cavity 116, and because the diameter of the end, close to the outside, of the plug 117 is larger than that the diameter of the end, the flow channel 111 is communicated with the transition cavity 116, lubricating oil in the accommodating cavity 110 can enter the transition cavity 116 through a gap between the flow passage 111 and the plug 117 and flow out of the oil outlet pipe 115 to flow between the bearing 105 and the cross shaft 103, so that the bearing 105 and the cross shaft 103 are lubricated conveniently;
when the outer end of the plug 117 enters the transition cavity 116 due to centrifugal force, the connecting plate 118 connected with the inner end of the plug 117 can move outwards along the side groove 120, so that the spring 119 is stretched, when the plug 117 is not influenced by the centrifugal force temporarily, the spring 119 can drive the connecting plate 118 to reset and move inwards, so that the plug 117 is driven to move inwards, at the moment, the flow channel 111 and the transition cavity 116 are in a closed state, lubricating oil can be temporarily stopped being supplied between the bearing 105 and the cross shaft 103, waste of the lubricating oil is avoided, the bearing 105 and the cross shaft 103 are lubricated when the universal joint works, and the lubricating oil at the connecting part is prevented from being evaporated and reduced to influence the lubricating effect;
the four inner ends of the mounting groove 104 are provided with leakage-proof assemblies respectively, the leakage-proof assemblies are used for avoiding leakage of lubricating oil, each leakage-proof assembly comprises a dustproof rubber ring 112 and an oil seal 113, the dustproof rubber rings 112 and the oil seals 113 are sequentially arranged from inside to outside, the dustproof rubber rings 112 are connected to the outside of the cross shaft 103, the cross shaft 103 penetrates out of the oil seals 113, a dustproof ring groove 114 corresponding to the dustproof rubber rings 112 is formed in the inner end of the mounting groove 104, the outer end of each dustproof rubber ring 112 is arc-shaped, the periphery of each dustproof rubber ring 112 is inserted into the dustproof ring groove 114, one end, close to the inside, of each oil seal 113 arranged in the mounting groove 104 can better seal the outer end of the mounting groove 104, and the lubricating oil leakage in the bearing 105 at the outer end of the mounting groove 104 is prevented from affecting the lubricating effect;
Claims (7)
1. A universal joint for an automobile transmission system comprises a transmission shaft fork (101), a flange fork (102) and a cross shaft (103), wherein the upper end and the lower end of the cross shaft (103) are respectively and rotatably connected to the upper surface and the lower surface of the inner wall of the transmission shaft fork (101), the flange fork (102) is positioned on the left side of the transmission shaft fork (101), the front end and the rear end of the cross shaft (103) are respectively and rotatably connected to the front surface and the rear surface of the inner wall of the flange fork (102), and the universal joint is characterized in that:
mounting grooves (104) corresponding to the cross shaft (103) are formed in the upper surface and the lower surface of the transmission shaft fork (101) and the front surface and the rear surface of the inner wall of the flange fork (102), bearings (105) are embedded into one end, close to the outer end, of the interior of each mounting groove (104), and the front upper end and the rear lower end of each cross shaft (103) are inserted into the adjacent bearings (105);
an accommodating cavity (110) is formed in the center of the inner part of the cross shaft (103), an oil filling assembly is arranged on the right side of the cross shaft (103), and the oil filling assembly is used for filling lubricating oil into the accommodating cavity (110);
the upper end, the lower end, the front end and the rear end of the inner wall of the accommodating cavity (110) are communicated with flow channels (111), transition cavities (116) are formed in the upper end, the lower end, the left end and the right end of the cross shaft (103), a plurality of oil outlet pipes (115) penetrating through the outer wall of the cross shaft (103) are communicated with the periphery of the inner wall of the transition cavities (116), the oil outlet pipes (115) correspond to the inner wall of the bearing (105), one end, close to the outer part, of each flow channel (111) is communicated with one end, close to the inner part, of each transition cavity (116), and the oil outlet pipes (115) are used for lubricating the cross shaft (103);
sliding assemblies are arranged between the four flow passages (111) and the four transition cavities (116), and are used for controlling the connection and disconnection between the flow passages (111) and the transition cavities (116);
four the inside one end of leaning on in mounting groove (104) all is equipped with the leak protection subassembly, the leak protection subassembly is used for avoiding lubricating oil to leak.
2. A universal joint for a vehicle driveline system according to claim 1, wherein: the refueling assembly comprises an oil inlet pipe (107) and a cover (106), the oil inlet pipe (107) is connected to the right end of the cross shaft (103), and the left end of the oil inlet pipe (107) is communicated with the accommodating cavity (110).
3. A universal joint for a vehicle driveline system according to claim 2, wherein: lid (106) threaded connection in advance oil pipe (107) right-hand member, it has clamping ring groove (109) to advance oil pipe (107) right side edge, lid (106) left side edge welded joint has clamping rubber ring (108) that correspond with clamping ring groove (109), clamping rubber ring (108) insert inside clamping ring groove (109).
4. A universal joint for a vehicle driveline system according to claim 1, wherein: the sliding assembly comprises a plug (117), a connecting plate (118) and a spring (119), one end, close to the outside, of the plug (117) is spherical, and the diameter of one end, close to the outside, of the plug (117) is consistent with the inner diameter of the flow channel (111).
5. A universal joint for a vehicle driveline system according to claim 4, wherein: the diameter that end cap (117) leaned on interior one end is less than its diameter that leans on outer one end, connecting plate (118) connect in end cap (117) lean on interior one end, side channel (120) have all been opened to runner (111) inner wall left and right sides upper end, end about connecting plate (118) respectively with control two side channel (120) sliding connection, spring (119) are equipped with two, two spring (119) connect respectively in connecting plate (118) lean on interior one side left and right ends and adjacent side channel (120) inner wall lean on between the interior one side.
6. A universal joint for a vehicle driveline system according to claim 1, wherein: the leak protection subassembly includes dustproof rubber ring (112) and oil blanket (113), dustproof rubber ring (112) and oil blanket (113) set gradually from inside to outside.
7. A universal joint for a vehicle driveline system according to claim 6, wherein: dustproof rubber ring (112) connect in cross (103) are outside, cross (103) run through out oil blanket (113), mounting groove (104) inner wall is by interior one end open have with dustproof rubber ring (112) the dustproof annular (114) that correspond, dustproof rubber ring (112) lean on outer one end to be the arc, dustproof rubber ring (112) periphery inserts inside dustproof annular (114).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122604276.9U CN217440620U (en) | 2021-10-27 | 2021-10-27 | Universal joint for automobile transmission system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122604276.9U CN217440620U (en) | 2021-10-27 | 2021-10-27 | Universal joint for automobile transmission system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217440620U true CN217440620U (en) | 2022-09-16 |
Family
ID=83209357
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122604276.9U Active CN217440620U (en) | 2021-10-27 | 2021-10-27 | Universal joint for automobile transmission system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217440620U (en) |
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2021
- 2021-10-27 CN CN202122604276.9U patent/CN217440620U/en active Active
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