CN210106438U - Aluminum alloy transmission shaft assembly - Google Patents
Aluminum alloy transmission shaft assembly Download PDFInfo
- Publication number
- CN210106438U CN210106438U CN201920647095.4U CN201920647095U CN210106438U CN 210106438 U CN210106438 U CN 210106438U CN 201920647095 U CN201920647095 U CN 201920647095U CN 210106438 U CN210106438 U CN 210106438U
- Authority
- CN
- China
- Prior art keywords
- spline
- spline shaft
- fork
- aluminum alloy
- shaft
- 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.)
- Active
Links
Images
Landscapes
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
An aluminum alloy transmission shaft assembly aims to solve the technical problems that an oil seal device used for carrying out dustproof protection on a spline shaft in the prior art has high requirements on installation precision and cannot be suitable for large-scale production and machining. The utility model discloses a central siphon, the one end of central siphon is passed through the integral key shaft sleeve and is connected with the one end of spline fork, and the cover is equipped with the dust cover again outside the spline fork, central siphon, spline shaft sleeve and spline fork are made by aluminum alloy material. The utility model discloses following beneficial effect has: the corrugated pipe is matched with the clamp to form the dustproof device, so that the spline shaft can be well protected from dust, the service life of the spline shaft is prolonged, and in addition, the dustproof device is simple in structure and convenient to install; the nylon layer has good self-lubricating performance and does not need frequent replacement, abrasion of the spline shaft and the spline shaft sleeve can be reduced, and the later maintenance cost can be greatly reduced.
Description
Technical Field
The utility model relates to a mechanical transmission technical field, specifically speaking, the utility model relates to an aluminum alloy transmission shaft assembly.
Background
The transmission shaft is an important part for transmitting power in an automobile transmission system, and has the function of transmitting the power of an engine to wheels together with a gearbox and a drive axle so as to drive the wheels to move. The transmission shaft generally comprises central siphon, telescope tube and universal joint, wherein: the telescopic sleeve can automatically adjust the change of the distance between the transmission and the drive axle, and the universal joint is used for eliminating the change of the included angle of two shafts of the output shaft of the transmission and the input shaft of the drive axle, thereby realizing the equal angular speed transmission of the two shafts. The transmission shaft telescopic sleeve with the traditional structure is formed by welding a spline sleeve and a flange yoke together and welding a spline shaft on a transmission shaft tube. A conventional structure of a transmission shaft commonly used in the market is changed, and a spline shaft sleeve and a shaft tube are welded into a whole; a spline shaft and a flange fork are integrated into a spline fork, and a rectangular tooth spline is changed into a large-pressure-angle involute short-tooth spline; therefore, the strength is increased, and the extrusion forming is facilitated, so that the requirement of a large-torque working condition can be met. However, when the transmission shaft is operated in a severe condition, it is not practical to reduce the wear of the spline shaft only by the spline shaft sleeve, and the spline shaft also needs good dust-proof and rust-proof protection to prolong the service life of the spline shaft.
The Chinese patent with the publication number of CN 207433278U discloses a novel aluminum alloy transmission shaft, which comprises an aluminum alloy shaft tube, wherein one end of the aluminum alloy shaft tube is provided with an aluminum alloy universal joint fork, and the other end of the aluminum alloy shaft tube is provided with an aluminum alloy spline housing to form an integrated structure; the aluminum alloy universal joint fork is connected with the flange fork II through a cross shaft II, and the aluminum alloy spline housing is matched with the spline shaft fork and connected with the flange fork I through a cross shaft I; the aluminum alloy spline housing is matched with the spline shaft fork to form a spline pair, a sheath is arranged outside the spline shaft fork, the joint of the aluminum alloy spline housing and the spline shaft fork is covered in the sheath, and a maintenance-free sheath oil seal is arranged between the sheath and the aluminum alloy spline housing, so that the spline pair forms a maintenance-free structure; a nylon coating layer is arranged on the spline and the excircle of the aluminum alloy spline sleeve, and the thickness of the nylon coating layer is 0.2-0.4 mm; the spline shaft fork adopts a hollow structure; the thickness of the nylon coating layer is 0.3 mm; the aluminum alloy shaft tube, the aluminum alloy universal joint fork and the aluminum alloy spline housing are all made of aluminum alloy materials 6061T 6; the aluminum alloy shaft tube, the universal joint fork and the aluminum alloy spline housing are connected into a whole in a welding mode.
In the patent, the maintenance-free oil seal is additionally arranged between the sheath and the spline housing to realize the dustproof and antirust protection of the spline shaft; however, in the installation process of the oil seal, an oil seal positioning step needs to be processed at the installation position, after the installation is completed, the good perpendicularity and concentricity of the oil seal and the shaft needs to be ensured, the fault tolerance rate of the oil seal installation is low, and the oil seal installation method cannot be applied to large-scale production and processing.
SUMMERY OF THE UTILITY MODEL
The utility model discloses an overcome among the prior art need guarantee the oil blanket and the straightness that hangs down and the concentricity of axle good when anti-dust, rust-resistant protection are carried out to spline shaft adoption end cover oil blanket method, installation accuracy requires comparatively high, can't be applicable to the technical problem of large-scale production processing, provides an aluminum alloy transmission shaft assembly, aluminum alloy transmission shaft assembly can carry out good dustproof, rust-resistant protection to spline shaft, can prolong the vice life of spline, and simultaneously, the dust cover in the aluminum alloy transmission shaft assembly has good leakproofness, and the installation is very simple and convenient.
In order to achieve the above purpose, the present invention adopts the following technical solution.
The utility model provides an aluminum alloy transmission shaft assembly, includes the central siphon, the one end of central siphon is passed through the splined shaft cover and is connected with the one end of spline fork, and the cover is equipped with the dust cover again outside spline fork, central siphon, spline shaft cover and spline fork are made by aluminum alloy material.
Traditional aluminum alloy transmission shaft uses the integral type central siphon, solves the problem of cluster through the slip yoke, however, at the car in-process of traveling, the transmission shaft need transmit final drive ware with the rotation of derailleur, and the normal meeting produces stress concentration on the traditional integral type central siphon, causes the damage to the transmission shaft easily. The utility model provides an aluminum alloy transmission shaft assembly, including the central siphon, the one end of central siphon is passed through the integral key shaft sleeve and is connected with the one end of spline fork, and the cover is equipped with the dust cover again outside the spline fork, the central siphon the spline shaft sleeve with the spline fork is made by aluminum alloy material. The problem of stress and torsion generated on the axle tube when the automobile is driven is solved, and the vibration can be eliminated in the shortest time. In addition, be connected with the dust cover on the outer peripheral face of spline fork, can carry out good dustproof, rust-resistant protection to the integral key shaft of spline fork, and then prolong the life of spline fork. The shaft tube, the spline shaft sleeve and the spline fork are all made of aluminum alloy materials. The shaft sleeve, the spline shaft sleeve and the spline fork are made of aluminum alloy materials, and compared with steel, the weight of the shaft sleeve, the spline shaft sleeve and the spline fork can be reduced by 40-60%, on one hand, the weight of the whole automobile can be greatly reduced, and the service performance of the automobile is improved; on the other hand, the transmission shaft is light in weight, good in interchangeability, good in fatigue resistance and large in bearing capacity.
Preferably, the other end of central siphon is connected with the one end of welding fork, the other end of welding fork is connected with first flange fork through first universal joint, the other end of spline fork is connected with the second flange fork through the second universal joint, the welding fork is made by aluminum alloy material.
The welding fork is prepared from the aluminum alloy material, and compared with steel preparation, the weight of the welding fork can be reduced by 40-60%, so that the weight of the whole vehicle can be greatly reduced, and the service performance of the vehicle is improved; on the other hand, the transmission shaft assembly is light in weight, good in interchangeability, good in fatigue resistance and large in bearing capacity.
Preferably, the spline fork comprises a U-shaped fork head, a transition section and a spline shaft, the U-shaped fork head, the transition section and the spline shaft are sequentially connected, the spline shaft is sleeved in the spline shaft sleeve in a partially sleeved mode, and the U-shaped fork head and the transition section are located outside the spline shaft sleeve.
Preferably, the inner wall surface of the spline shaft sleeve is coated with a nylon layer, and the contact surface of the spline shaft and the spline shaft sleeve is coated with a nylon material.
In order to prolong the service life of the aluminum alloy transmission shaft and reduce the abrasion between the spline shaft and the spline shaft sleeve, lubricating grease is often additionally coated on the matching surface of the spline shaft and the spline shaft sleeve; however, because the grease is grease-like semisolid, the working principle of the grease is that the thickener keeps oil at a position needing lubrication, and when the grease is loaded, the thickener releases the oil, so that the grease has a lubricating effect. When lubricating grease works, lubricating oil released from a thickening agent easily flows out of the end face of the spline shaft sleeve, and therefore an end cover oil seal is often required to be additionally arranged on the end face of the spline shaft sleeve to seal and protect the lubricating grease in the spline shaft sleeve. The utility model discloses in, scribble the nylon layer on spline shaft sleeve's the internal face, on the integral key shaft, with also scribble the nylon layer on the outer peripheral face of spline shaft sleeve contact. The nylon layer has outstanding shock resistance and low friction coefficient, has good weather resistance, chemical resistance, moisture resistance and high impact resistance, and when the nylon layer is coated on the inner wall surface of the spline shaft sleeve and the outer peripheral surface of the spline shaft in contact with the spline shaft sleeve, the two matched nylon layers can form good self-lubricating performance, so that on one hand, the abrasion of the spline shaft and the spline shaft sleeve can be reduced, and the service life of the spline pair is prolonged; on the other hand, compared with lubricating grease, the nylon coating layer does not need to be replaced frequently, and the later maintenance cost can be greatly reduced. In addition, the nylon material can absorb noise to a certain extent, and when the transmission shaft operates, the influence of the noise on the cockpit can be reduced.
Preferably, the dust cover is the bellows, the one end of dust cover through first clamp with changeover portion fixed connection, the other end of dust cover through the second clamp with spline shaft sleeve's outer wall fixed connection.
The corrugated pipe is flexible and has good temperature resistance and pressure resistance, and the corrugated pipe is selected as a dust cover, so that on one hand, the spline shaft can be well protected from dust, the abrasion resistance and the corrosion resistance of the spline shaft are improved, and the service life of the spline shaft is prolonged; on the other hand, the corrugated pipe is flexible and does not influence the normal operation of the spline pair. The one end of dust cover through first clamp with changeover portion fixed connection, the other end of dust cover through the second clamp with spline shaft sleeve's outer wall fixed connection. The clamp is a connecting device for connecting pipe fittings, valves and pipeline fittings with grooves and is used for tightening between butt joints, and generally, two joints are provided with gaskets, rubber, silica gel and tetrafluoro. In the utility model, the clamp which is usually applied to the sealing connection of the butt-joint pipe fitting is applied to the fixation of the dust cover; in this in-process, fix the sealing member on the clamp at the junction of bellows and changeover portion, spline shaft sleeve like gasket etc. can fix the bellows on the one hand, reaches dustproof effect, and on the other hand can seal the junction, and then can cancel traditional end cover oil sealing device. The utility model uses the corrugated pipe and the hoop in a matching way, and performs good dustproof and antirust protection on the spline shaft under the condition of not using an end cover oil seal device; aluminum alloy transmission shaft assembly in, the dustproof sealing device of integral key shaft simple structure, simple to operate just have good sealed effect, applicable in large-scale production and processing.
Preferably, an annular boss is arranged outside the spline shaft sleeve connecting end corresponding to the shaft tube, the boss is matched and clamped with the inner wall surface of the shaft tube, and the spline shaft sleeve is connected with the shaft tube in a butt joint mode through welding.
And an annular boss is arranged outside the spline shaft sleeve connecting end corresponding to the shaft tube, the boss is matched and clamped with the inner wall surface of the shaft tube, and the spline shaft sleeve is connected with the butt joint position of the shaft tube in a welding manner. Spline shaft sleeve with the central siphon passes through welded connection and forms integral type structure spline shaft sleeve in with the link of central siphon adds establishes the boss, the boss with the internal face cooperation joint of central siphon can realize the circumference location of spline shaft sleeve and central siphon, guarantees the axis collineation of spline shaft sleeve and central siphon, and the neighboring of spline shaft sleeve and the neighboring parallel and level or the equidistance of central siphon to make the stress distribution on the welding seam after the welding even, avoid leading to welding quality to descend because of welding position stress concentration.
Preferably, a blank cap is clamped at a port of the spline shaft sleeve, and one end of the blank cap is flush with the port of the spline shaft sleeve.
The port department joint of spline shaft sleeve has stifle, the one end of stifle with spline shaft sleeve's port parallel and level. Because the central siphon is hollow structure, and spline shaft sleeve also is hollow structure, the dust gets into spline shaft sleeve through the central siphon easily. The port department joint stifle at spline shaft sleeve can realize the axial positioning of stifle through the boss on the one hand for same boss structure realizes dual technological effect, and on the other hand, the stifle can carry out good dustproof protection to spline shaft sleeve's inner ring.
Preferably, the end surfaces of the first flange yoke and the second flange yoke are respectively provided with a through flange connecting hole, and the flange connecting holes are uniformly distributed along the circumferential direction by taking the axes of the first flange yoke and the second flange yoke as the center.
The end faces of the first flange fork and the second flange fork are respectively provided with a through flange connecting hole, and the flange connecting holes are uniformly distributed along the circumferential direction by taking the axes of the first flange fork and the second flange fork as the center. Guarantee the flange connecting hole with first flange fork with the axial of second flange fork is the center, follows first flange fork with the circumference evenly distributed of second flange fork can guarantee first flange fork with load distribution on the second flange fork is drawn close to evenly distributed, prevents to lead to the transmission shaft to take place intermittent type nature vibration in the operation process because of load distribution is too uneven.
Preferably, the cross shafts of the first and second universal joints are filled with lithium grease.
Lithium-based grease is injected into the cross shafts of the first universal joint and the second universal joint. The lithium-based lubricating grease is prepared by blending hydroxy fatty acid lithium soap thickened mineral oil and various additives such as antioxidant, antirust, anticorrosive and the like, such as extreme pressure antiwear additive and the like. The lithium-based lubricating grease has excellent water resistance, mechanical stability, extreme pressure and wear resistance, water resistance, pumpability, rust resistance and oxidation stability. The lithium-based lubricating grease can also exert the super-high lubricating effect under extremely severe operating conditions. Because the service life of the lithium-based grease is long, the lubricating time limit can be prolonged and the lubricating maintenance frequency of the universal joint can be reduced by filling the lithium-based grease into the universal joint cross.
To sum up, the utility model discloses following beneficial effect has: (1) the corrugated pipe is matched with the clamp to form a dustproof device, so that on one hand, the spline shaft can be well protected from dust, and the service life of the spline shaft is prolonged; on the other hand, the dustproof device is simple in structure and convenient to install, and the sealing effect of the oil sealing device is achieved through the sealing gasket carried by the clamp; (2) the nylon layer coated on the inner wall surface of the spline shaft sleeve and the spline shaft has good self-lubricating performance, so that on one hand, the abrasion between the spline shaft and the spline shaft sleeve can be reduced, and the service life of a spline pair is prolonged; on the other hand, compared with lubricating grease, the nylon coating layer does not need to be replaced frequently, and the later maintenance cost can be greatly reduced.
Drawings
Fig. 1 is a front view of the middle transmission shaft assembly of the present invention.
Fig. 2 is a top view of the middle transmission shaft assembly of the present invention.
Fig. 3 is a left side view of the middle transmission shaft assembly of the present invention.
In the figure: 1. the central siphon, 2, the welding fork, 3, first universal joint, 4, first flange fork, 4a, flange connecting hole, 5, spline shaft sleeve, 5a, the boss, 6, the spline fork, 6a, U type jaw, 6b, the changeover portion, 6c, the integral key shaft, 7, the dust cover, 8, the second universal joint, 9, second flange fork, 10, first clamp, 11, the second clamp, 12, stifle, 13, retaining ring.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Example (b):
as shown in fig. 1, 2 and 3, an aluminum alloy transmission shaft assembly comprises a shaft tube 1, one end of the shaft tube is connected with one end of a spline fork 6 through a spline shaft sleeve 5, a dust cover 7 is sleeved outside the spline fork, and the shaft tube, the spline shaft sleeve and the spline fork are all made of aluminum alloy materials; the other end of the shaft tube is connected with one end of a welding fork 2, the other end of the welding fork is connected with a first flange fork 4 through a first universal joint 3, the other end of the spline fork is connected with a second flange fork 9 through a second universal joint 8, and the welding fork is made of an aluminum alloy material; the spline fork comprises a U-shaped fork head 6a, a transition section 6b and a spline shaft 6c, the U-shaped fork head, the transition section and the spline shaft are sequentially connected, the spline shaft is sleeved in the spline shaft sleeve in a partially sleeved mode, and the U-shaped fork head and the transition section are located outside the spline shaft sleeve; the inner wall surface of the spline shaft sleeve is coated with a nylon layer, and the contact surface of the spline shaft and the spline shaft sleeve is coated with a nylon material; the dustproof cover is a corrugated pipe, one end of the dustproof cover is fixedly connected with the transition section through a first clamp 10, and the other end of the dustproof cover is fixedly connected with the outer wall surface of the spline shaft sleeve through a second clamp 11; an annular boss 5a is arranged outside the spline shaft sleeve connecting end corresponding to the shaft tube, the boss is matched and clamped with the inner wall surface of the shaft tube, and the spline shaft sleeve is connected with the butt joint position of the shaft tube in a welding mode; a blank cap 12 is clamped at a port of the spline shaft sleeve, and one end of the blank cap is flush with the port of the spline shaft sleeve; the end faces of the first flange fork and the second flange fork are respectively provided with a through flange connecting hole 4a, and the flange connecting holes are uniformly distributed along the circumferential direction by taking the axes of the first flange fork and the second flange fork as the center; and lithium-based grease is filled in the cross shafts of the first universal joint and the second universal joint.
The first universal joint and the second universal joint are both cross shaft universal joints, and the traditional cross shaft universal joint comprises two universal joint forks and a cross shaft; the utility model discloses in, for convenient connection derailleur, central siphon and transaxle, fuse the preparation with traditional universal joint fork and be flange fork, spline fork and welding fork. The shaft tube is a hollow tube made of aluminum alloy material, preferably 6061-T6 aluminum alloy material. The left end of central siphon is connected with spline shaft sleeve, and spline shaft sleeve is hollow tubular structure, and spline shaft sleeve also is by aluminum alloy material preparation. The spline shaft sleeve comprises a small end, an extension section and a large end, the length of the extension section is longest, and the inner diameter and the outer diameter of the extension section do not change along the axial direction of the spline shaft sleeve; the small end is positioned at the left side of the extension section, and the inner diameter of the small end is consistent with that of the extension section; change of outer diameter of small end: taking the left end of the spline shaft sleeve as a start, taking the left end of the extension section as a finish, fluctuating up and down, and finally gradually increasing until the outer diameters of the extension sections are consistent; the external diameter of tip is at undulant in-process from top to bottom, forms the mounting groove along spline shaft sleeve's circumference for the fixed connection of second clamp. Change in outer diameter of the large end: the right end of the extension section is used as the start, the right end of the spline shaft sleeve is used as the end, and the axial direction of the spline shaft sleeve is gradually increased until the outer diameter of the shaft tube is consistent; the inner diameter of the large end is consistent with that of the extension section. The big end of the spline shaft sleeve is matched and welded with the left end of the shaft tube; the spline shaft sleeve is provided with a boss on the butt joint end face of the shaft tube, the boss is an annular body, and the thickness of the boss is smaller than the thickness of the wall of the large end of the spline shaft sleeve. The boss joint is on the internal face of central siphon, and when welding spline shaft sleeve and central siphon, the boss carries out axial and radial location to spline shaft sleeve, prevents that spline shaft sleeve and central siphon from taking place axial or radial dislocation, guarantees the welding quality of hookup location, avoids causing the stress concentration of welding seam department because of positioning accuracy's decline. Because the shaft tube is a hollow tube, dust or oil stain entering the shaft tube can easily enter the bearing between the flowers through the shaft tube, and therefore a blank cap is clamped on the inner wall surface of the boss, and the plane end of the blank cap is flush with the plane end of the boss.
The spline fork comprises a U-shaped fork head, a transition section and a spline shaft, and the function of the U-shaped fork head in the utility model is the same as that of the traditional universal joint fork; the spline shaft is connected with the bearing between the flower. The inner wall surface of the spline shaft sleeve is provided with a nylon layer, and the matching surface of the spline shaft and the spline shaft sleeve is also provided with the nylon layer; the nylon layer has outstanding shock resistance and low friction coefficient, has good weather resistance, chemical resistance, moisture resistance and high impact resistance, and when the nylon layer is coated on the inner wall surface of the spline shaft sleeve and the outer peripheral surface of the spline shaft in contact with the spline shaft sleeve, the two matched nylon layers can form good self-lubricating performance, so that on one hand, the abrasion of the spline shaft and the spline shaft sleeve can be reduced, and the service life of the spline pair is prolonged; on the other hand, compared with lubricating grease, the nylon coating layer does not need to be replaced frequently, and the later maintenance cost can be greatly reduced. In addition, the nylon material can absorb noise to a certain extent, and when the transmission shaft operates, the influence of the noise on the cockpit can be reduced. Through the one end of first clamp fixed connection dust cover on the changeover portion of spline fork, through the other end of second clamp fixed connection dust cover on the outer wall of spline shaft sleeve, the bellows is chooseed for use to the dust cover. The corrugated pipe is flexible and has good temperature resistance and pressure resistance, and the corrugated pipe is selected as a dust cover, so that on one hand, the spline shaft can be well protected from dust, the abrasion resistance and the corrosion resistance of the spline shaft are improved, and the service life of the spline shaft is prolonged; on the other hand, the corrugated pipe is flexible and does not influence the normal operation of the spline pair. The clamp is a connecting device for connecting pipe fittings, valves and pipeline fittings with grooves and is used for tightening between butt joints, and generally, two joints are provided with gaskets, rubber, silica gel and tetrafluoro. In the utility model, the clamp which is usually applied to the sealing connection of the butt-joint pipe fitting is applied to the fixation of the dust cover; in this in-process, fix the sealing member on the clamp at the junction of bellows and changeover portion, spline shaft sleeve like gasket etc. can fix the bellows on the one hand, reaches dustproof effect, and on the other hand can seal the junction, and then can cancel traditional end cover oil sealing device. The utility model uses the corrugated pipe and the hoop in a matching way, and performs good dustproof and antirust protection on the spline shaft under the condition of not using an end cover oil seal device; aluminum alloy transmission shaft assembly in, the dustproof sealing device of integral key shaft simple structure, simple to operate just have good sealed effect, applicable in large-scale production and processing.
Preferably, in order to realize the fixation of the corrugated pipe and the dustproof and waterproof sealing of the contact position of the corrugated pipe, the spline shaft and the spline shaft sleeve simultaneously through one clamp, a double-clamp device can be adopted. The double clamp does not mean that two clamps are installed at one position, but the two clamps share one sealing gasket, wherein two clamp fixing rings connected to the same sealing gasket are separated. Take the transition section of one end and spline fork of first clamp fixed connection bellows as the example: one of the clamp fixing rings is fixedly connected to the corrugated pipe through a sealing gasket, and one end of the corrugated pipe is fixed to the transition section of the spline fork; and the other clamp fixing ring is fixed on the transition section of the spline fork, and the sealing gasket is tightly attached and sealed with the transition section of the spline fork. Through above-mentioned design, seal gasket's both ends paste tightly sealedly with the changeover portion of spline fork and spline shaft sleeve's surface respectively, and two clamp retainer plates do not take place to interfere, and the integral key shaft receives good dustproof, waterproof protection, and then can improve the life of integral key shaft.
The U-shaped fork head and the fork head of the second flange fork are matched to form a universal joint fork of the second universal joint, and four shaft ends of the cross shaft are respectively clamped on the U-shaped fork head and the fork head of the second flange fork through retaining rings 13. The right end of the shaft tube is connected with a welding fork through an aluminum welding process, a fork head of the welding fork is matched with a fork head of the first flange fork to form a universal joint fork of a first universal joint, and four shaft ends of the cross shaft are respectively clamped on the fork heads of the welding fork and the first flange fork through retaining rings 13. Lithium-based grease is filled in the cross shafts of the first universal joint and the second universal joint. The lithium-based lubricating grease is prepared by blending hydroxy fatty acid lithium soap thickened mineral oil and various additives such as antioxidant, antirust, anticorrosive and the like, such as extreme pressure antiwear additive and the like. The lithium-based lubricating grease has excellent water resistance, mechanical stability, extreme pressure and wear resistance, water resistance, pumpability, rust resistance and oxidation stability. The lithium-based lubricating grease can also exert the super-high lubricating effect under extremely severe operating conditions. Because the service life of the lithium-based grease is long, the lubricating time limit can be prolonged and the lubricating maintenance frequency of the universal joint can be reduced by filling the lithium-based grease into the universal joint cross.
One end of the flange fork is provided with a through flange connecting hole, and the flange connecting holes are uniformly distributed along the circumferential direction of the flange fork by taking the axial direction of the flange fork as the center. The flange connecting holes are ensured to be uniformly distributed along the circumferential direction of the flange fork by taking the axial direction of the flange fork as the center, so that the load distribution on the flange fork can be ensured to be close to the uniform distribution, and the intermittent vibration of the transmission shaft in the operation process due to the excessively uneven load distribution is prevented.
The utility model discloses in an aluminum alloy transmission shaft assembly equipment the concrete operation as follows:
(1) coating a nylon layer on the inner wall surface of the spline shaft sleeve, coating a nylon layer on the outer wall surface of the spline shaft, sleeving the corrugated pipe on the spline shaft of the spline fork, and connecting the spline shaft sleeve and the spline shaft in a matched manner according to specific working condition requirements;
(2) the inner wall surface of the boss is clamped with the blank cap, and in order to ensure good sealing performance, a sealing ring can be additionally arranged on the contact surface of the boss and the blank cap, so that the plane end of the blank cap is ensured to be flush with the plane end of the boss in the process;
(3) clamping the boss on the inner wall surface of the shaft tube to ensure that the spline shaft sleeve and the shaft tube are aligned in the circumferential direction and the axial direction, and fixedly connecting the spline shaft sleeve and the shaft tube by an aluminum welding process;
(4) one end of the corrugated pipe is fixedly connected with the transition section of the spline fork through a first clamp, and the other end of the corrugated pipe is fixedly connected with the outer wall surface of the spline shaft sleeve through a second clamp, so that the clamp is ensured to be stably connected in the process;
(5) connecting four shaft ends of a second universal joint cross shaft with a fork head of a second flange fork and a U-shaped fork head of a spline fork respectively through check rings, and adding lithium-based grease into the cross shaft;
(6) the right end of the shaft tube is connected with a welding fork through an aluminum welding process, four shaft ends of the first universal joint cross shaft are respectively connected with a fork head of the first flange fork and a fork head of the welding fork through check rings, and lithium-based grease is additionally arranged in the cross shaft.
The relevant processing and assembly requirements in this embodiment are:
1. the appearance of the transmission shaft and the machined surface of the part cannot have the defects of burrs, bruises, corrosion, creases, distortion, cracks and the like;
2. after the transmission shaft is assembled, the cross universal joint is flexible to rotate and has no clearance or clamping stagnation, the swing torque is 0.5-2.5 N.m, and the swing angle is not less than 21 degrees;
3. the transmission shaft is in accordance with the G16 balance quality grade in GB9239.1-2006 specification after dynamic balance, the balance sheets are firmly welded, and each end of each balance sheet is not more than 2 sheets;
4. before assembly, coating lubricating grease on the inner surface and the outer surface of the spline;
5. spraying marks on the surfaces of the spline connection and welding parts of the transmission shaft;
6. phase errors of two adjacent cross universal joint shafts of the transmission shaft are not more than 2 degrees, and corresponding joint fork marks are made during assembly;
7. the transmission shaft assembly is sprayed with environment-friendly black paint, the exposed bottom (including welding seams and closed inner cavities) and the damaged surface are not allowed to exist, and the sprayed paint is required to reach the TQ6 grade in QC/T484-1999 specification and be more than the II grade of a hundred-lattice test.
The operations are carried out in sequence, and the matching assembly of the aluminum alloy transmission shaft assembly can be completed.
Claims (9)
1. The aluminum alloy transmission shaft assembly comprises a shaft tube and is characterized in that one end of the shaft tube is connected with one end of a spline fork through a spline shaft sleeve, a dust cover is sleeved outside the spline fork, and the shaft tube, the spline shaft sleeve and the spline fork are made of aluminum alloy materials.
2. The aluminum alloy propeller shaft assembly of claim 1, wherein the other end of the shaft tube is connected to one end of a welding yoke, the other end of the welding yoke is connected to a first flange yoke through a first universal joint, the other end of the spline yoke is connected to a second flange yoke through a second universal joint, and the welding yoke is made of an aluminum alloy material.
3. The aluminum alloy transmission shaft assembly as recited in claim 1, wherein the spline fork comprises a U-shaped fork head, a transition section and a spline shaft, the U-shaped fork head, the transition section and the spline shaft are sequentially connected in sequence, the spline shaft is sleeved in the spline shaft sleeve, and the U-shaped fork head and the transition section are located outside the spline shaft sleeve.
4. The aluminum alloy propeller shaft assembly according to claim 1, 2 or 3, wherein the spline shaft is coated with a nylon layer on an inner wall surface thereof, and a contact surface of the spline shaft with the spline shaft is coated with a nylon material.
5. The aluminum alloy transmission shaft assembly as claimed in claim 3, wherein the dust cover is a corrugated tube, one end of the dust cover is fixedly connected with the transition section through a first clamp, and the other end of the dust cover is fixedly connected with the outer wall surface of the spline shaft sleeve through a second clamp.
6. The aluminum alloy transmission shaft assembly as recited in claim 1, wherein an annular boss is provided outside the spline shaft sleeve connection end corresponding to the shaft tube, the boss is in fit clamping connection with the inner wall surface of the shaft tube, and the spline shaft sleeve is connected with the shaft tube at the butt joint position by welding.
7. The aluminum alloy transmission shaft assembly as recited in claim 1, wherein a blank cap is fastened to the port of the spline shaft sleeve, and one end of the blank cap is flush with the port of the spline shaft sleeve.
8. The aluminum alloy propeller shaft assembly of claim 2, wherein the first flange yoke and the second flange yoke have flange connection holes formed through end surfaces thereof, and the flange connection holes are uniformly distributed in a circumferential direction around the axis of the first flange yoke and the axis of the second flange yoke.
9. The aluminum alloy propeller shaft assembly of claim 2, wherein the cross shafts of the first and second universal joints are impregnated with lithium-based grease.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920647095.4U CN210106438U (en) | 2019-05-07 | 2019-05-07 | Aluminum alloy transmission shaft assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920647095.4U CN210106438U (en) | 2019-05-07 | 2019-05-07 | Aluminum alloy transmission shaft assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210106438U true CN210106438U (en) | 2020-02-21 |
Family
ID=69539511
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920647095.4U Active CN210106438U (en) | 2019-05-07 | 2019-05-07 | Aluminum alloy transmission shaft assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210106438U (en) |
-
2019
- 2019-05-07 CN CN201920647095.4U patent/CN210106438U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202391992U (en) | Maintenance-free cross axle type universal joint transmission shaft assembly | |
| CN101287920A (en) | Direct torque stream connection with optimized ratio in attaching method | |
| CN201144975Y (en) | Drive axle for heavy type car | |
| CN210106438U (en) | Aluminum alloy transmission shaft assembly | |
| CN107458461B (en) | Integral steering knuckle for front steering drive axle of heavy off-road vehicle and assembly thereof | |
| CN202867607U (en) | Ball spline type ball cage constant speed universal coupling | |
| CN211117492U (en) | Locomotive speed reducer axle sealing structure | |
| CN218325739U (en) | Integrated aluminum alloy transmission shaft assembly | |
| CN111677775A (en) | Connecting structure of universal joint of transmission shaft and opponent piece and vehicle | |
| CN215552541U (en) | Aluminum alloy transmission shaft with intermediate support for automobile | |
| CN214534135U (en) | Single-section constant-speed transmission shaft assembly | |
| CN216382294U (en) | High-reliability automobile transmission shaft universal joint | |
| CN212422823U (en) | Automobile transmission shaft assembly with combined structure | |
| CN216158154U (en) | Inner ball cage of universal joint with good sealing performance | |
| CN211778619U (en) | Transmission shaft of commercial vehicle | |
| CN113085543B (en) | Aluminum alloy transmission shaft with intermediate support for automobile | |
| CN217401486U (en) | Transmission shaft sheath assembly of heavy-duty car | |
| CN218440303U (en) | Ball spline transmission shaft | |
| CN204344730U (en) | A kind of light card driving-shaft assembly | |
| CN219101896U (en) | Reinforced large-swing-angle transmission shaft | |
| CN220037234U (en) | Automobile transmission shaft assembly with low sliding resistance | |
| CN211737790U (en) | Transmission shaft with fixed bearing structure | |
| CN217653071U (en) | Friction welding transmission shaft assembly and vehicle using same | |
| CN215673136U (en) | Transmission shaft cross universal joint part capable of reducing abrasion phenomenon | |
| CN217778236U (en) | Anti-corrosion wear-resistant automobile half shaft |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |