CN113958685A - Powder metallurgy camshaft end combination - Google Patents
Powder metallurgy camshaft end combination Download PDFInfo
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- CN113958685A CN113958685A CN202111313217.4A CN202111313217A CN113958685A CN 113958685 A CN113958685 A CN 113958685A CN 202111313217 A CN202111313217 A CN 202111313217A CN 113958685 A CN113958685 A CN 113958685A
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- 238000004663 powder metallurgy Methods 0.000 title claims abstract description 26
- 230000017525 heat dissipation Effects 0.000 claims abstract description 31
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 9
- 229910052802 copper Inorganic materials 0.000 claims abstract description 9
- 239000010949 copper Substances 0.000 claims abstract description 9
- 230000006978 adaptation Effects 0.000 claims description 10
- 238000000034 method Methods 0.000 abstract description 9
- 230000008569 process Effects 0.000 abstract description 8
- 239000012141 concentrate Substances 0.000 abstract description 2
- 238000012545 processing Methods 0.000 description 7
- 230000000149 penetrating effect Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000005245 sintering Methods 0.000 description 3
- 230000001360 synchronised effect Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000003491 array Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005381 potential energy Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H53/00—Cams ; Non-rotary cams; or cam-followers, e.g. rollers for gearing mechanisms
- F16H53/02—Single-track cams for single-revolution cycles; Camshafts with such cams
- F16H53/025—Single-track cams for single-revolution cycles; Camshafts with such cams characterised by their construction, e.g. assembling or manufacturing features
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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
- F16D1/00—Couplings for rigidly connecting two coaxial shafts or other movable machine elements
- F16D1/06—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end
- F16D1/076—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end by clamping together two faces perpendicular to the axis of rotation, e.g. with bolted flanges
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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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/10—Suppression of vibrations in rotating systems by making use of members moving with the system
- F16F15/12—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon
- F16F15/121—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon using springs as elastic members, e.g. metallic springs
- F16F15/123—Wound springs
- F16F15/1232—Wound springs characterised by the spring mounting
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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
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/0006—Vibration-damping or noise reducing means specially adapted for gearings
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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
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/0018—Shaft assemblies for gearings
- F16H57/0025—Shaft assemblies for gearings with gearing elements rigidly connected to a shaft, e.g. securing gears or pulleys by specially adapted splines, keys or methods
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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
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0412—Cooling or heating; Control of temperature
- F16H57/0415—Air cooling or ventilation; Heat exchangers; Thermal insulations
- F16H57/0416—Air cooling or ventilation
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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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F2230/00—Purpose; Design features
- F16F2230/14—Ball joints; Spherical support elements
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Gears, Cams (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
Abstract
The invention discloses a powder metallurgy camshaft end combination, which relates to the technical field of powder metallurgy and comprises a cam connecting shaft, wherein a cam body is clamped on the surface of the cam connecting shaft, a connecting seat is welded at one end of the surface of the cam connecting shaft, a gear disc is sleeved on the surface of the connecting seat, a central shaft tube is inserted into the inner side wall of the gear disc, a plurality of groups of drainage holes are formed in the surface of the central shaft tube, a torsion-resistant assembly is arranged on the surface of the connecting seat, heat dissipation holes are formed in the inner side wall of the cam body and penetrate through the cam body to form a heat dissipation channel, and heat conduction copper sheets are uniformly distributed along the heat dissipation channel and are arranged on the inner side wall of the cam body. This powder metallurgy camshaft end combination, the air can circulate in central axis pipe, drainage hole, connecting hole and radiating hole, and the heat conduction copper sheet can be with the leading-in radiating channel's of the heat that the cam produced edge for the thermal dissipation of cam body rotation process avoids the heat to concentrate and causes the cam body wearing and tearing to consume seriously, reaches the purpose that improves cam body life.
Description
Technical Field
The invention relates to the technical field of powder metallurgy, in particular to an end combination of a powder metallurgy camshaft.
Background
The powder metallurgy combined sintering process is a novel combined camshaft preparation process, and is characterized in that: the method comprises the steps of firstly, manufacturing a cam and a journal by adopting a special powder metallurgy material, then, sleeving a pressed blank of the cam and the journal on a mandrel, and putting the pressed blank of the cam and the journal into a sintering furnace for sintering. The camshafts made by this process are generally referred to as powder metallurgy camshafts. Compared with a combined camshaft adopting mechanical interference connection modes such as hot assembly, knurling assembly and mechanical pipe expanding, the powder metallurgy camshaft has the advantages of high connection strength, excellent torsion resistance, outstanding wear resistance, good reliability and the like.
The basic parts of the camshaft can be divided into: dabber, cam, end, axle journal etc. dabber is the carrier of each part, the axle center is different with the effect of cam, so the structural performance that needs is different, the camshaft of integral type is unfavorable for the performance of each structural component function, inconvenient processing and the maintenance and the change in later stage moreover, and the cam is at the during operation, the friction produces a large amount of heat energy, long-time work causes the wearing and tearing of cam surface serious, thereby influence the working property of cam, traditional camshaft is relatively poor in torsion effect when using.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a powder metallurgy camshaft end combination to solve the problems of poor torsion resistance effect of a camshaft and inconvenience in heat dissipation due to long-time friction of a cam.
In order to achieve the purpose, the invention is realized by the following technical scheme: including the cam connecting axle, the surperficial joint of cam connecting axle has the cam body, the welding of the one end on cam connecting axle surface has the connecting seat, the surperficial cover of connecting seat is equipped with the toothed disc, the inside wall of toothed disc is pegged graft and is had central axis pipe, a plurality of groups drainage hole have been seted up on the surface of central axis pipe, the surface of connecting seat is provided with torsion resistance subassembly, the louvre has been seted up to the inside wall of the cam body, the louvre runs through the cam body and constitutes heat dissipation channel, the inside wall of the cam body is provided with along heat dissipation channel evenly distributed's heat conduction copper sheet, the cam spread groove that supplies the cam connecting axle to penetrate is seted up to the axis department of the cam body.
Optionally, the number of the cam bodies is five, the five cam bodies are arranged on the surface of the cam connecting shaft at equal intervals, and the plurality of cam bodies are matched with each other, so that the working efficiency of the cam connecting shaft can be improved.
Optionally, two sets of central connecting holes are symmetrically formed in the side face of the cam body, first threaded holes are formed in the inner side wall of each central connecting hole and the surface of the cam connecting shaft, central bolts are connected to the inner side wall of each first threaded hole in a threaded manner, the two sets of central connecting holes which are symmetrically formed can penetrate through the two central bolts at two sides of each central connecting hole, and the cam body is locked by the two central bolts, so that the stability of the cam body is improved.
Optionally, one end of the central bolt penetrating through the cam body abuts against the first threaded hole in the surface of the cam connecting shaft, so that the cam body is convenient to mount and dismount, respective processing and synchronous assembly are guaranteed, different technological requirements can be met, and the purpose that the cam shaft combination is convenient to maintain and replace is achieved.
Optionally, the torsion resisting assembly comprises a hollow sleeve and a torsion pull rod, the bottom of the hollow sleeve and the top of the torsion pull rod are fixedly connected with a spherical shaft, a spherical shaft connecting seat is sleeved on the surface of the spherical shaft in a rotatable mode, a positioning seat is fixedly connected with the surface of the cam connecting shaft, and the spherical shaft can rotate in the spherical shaft connecting seat, so that the rotation is facilitated, and the purpose of torsion conversion of the cam connecting shaft by the torsion resisting assembly is achieved.
Optionally, the spherical shaft connecting seat at the bottom of the hollow casing is fixedly welded on the surface of the connecting seat, and the spherical shaft connecting seat at the top of the torsion pull rod is fixedly welded on the surface of the positioning seat.
Optionally, a torsion spring is fixedly connected to the inner bottom wall of the hollow sleeve, one end of the torsion spring is fixedly connected to the torsion pull rod, and the torsion pull rod is elastically matched with the hollow sleeve through the torsion spring, so that torsion of the cam connecting shaft is conveniently converted to the buffer spring, torsion resistance of the cam connecting shaft is improved to a greater extent, and damage caused by overlarge torsion of the cam connecting shaft is avoided.
Optionally, the connecting seat is cross structure, the surperficial threaded connection of connecting seat has fixing bolt, the connecting seat assembles integratively through fixing bolt and toothed disc, one side of toothed disc set up with the embedded groove of connecting seat looks adaptation, the second screw hole with fixing bolt looks adaptation is seted up to the inner diapire of embedded groove, fixing bolt penetrates the one end of connecting seat and supports tightly the inner bottom wall of second screw hole to make things convenient for personnel installation central axis pipe.
Optionally, the connecting hole with drainage hole looks adaptation is seted up on the surface of cam connecting axle, the drainage hole passes through the connecting hole and constitutes airflow channel with the louvre, cam connecting axle and central axis pipe looks adaptation, central axis pipe closely laminates with the inside wall of cam connecting axle after penetrating the cam connecting axle, and the drainage hole passes through connecting hole and louvre and central axis pipe intercommunication, and the air can circulate in central axis pipe, drainage hole, connecting hole and louvre, has reached and has accelerated the thermal dissipation of cam body rotation process, avoids the heat to concentrate and causes the cam body wearing and tearing to consume seriously, reaches the purpose that improves cam body life.
Optionally, the one end fixedly connected with ring flange of central axis pipe, a plurality of flange connection hole has all been seted up on the surface of ring flange and toothed disc, the flange connection hole is the surface of annular array at the ring flange to the convenience is installed central axis pipe on the toothed disc.
The invention provides a powder metallurgy camshaft end combination, which has the following beneficial effects: the powder metallurgy camshaft end combination comprises a cam connecting shaft, a cam body, a central shaft tube and a gear disc, wherein the whole camshaft is divided into a plurality of shaft section units by adopting a sectional structure, so that the processing is more convenient, the mass processing is convenient, the cost is reduced, a single shaft section can be independently replaced after being broken down, the installation and the maintenance are convenient, a drainage hole is communicated with a heat dissipation hole and the central shaft tube through a connecting hole, air can circulate in the central shaft tube, the drainage hole, the connecting hole and the heat dissipation hole, a heat conduction copper sheet can guide heat generated by the cam into the edge of a heat dissipation channel, the heat dissipation in the rotating process of the cam body is accelerated, the serious abrasion consumption of the cam body caused by heat concentration is avoided, the service life of the cam body is prolonged, the torsion generated by the cam connecting shaft when the cam body rotates can be converted to the torsion resistant assembly to be consumed, and the torsion resistant performance of the cam connecting shaft is improved, thereby improving the working efficiency and the service life of the cam connecting shaft.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic view of the split structure of the present invention;
FIG. 3 is a schematic view of the structure of the spindle tube and the cam connecting shaft according to the present invention;
FIG. 4 is a schematic side view of the present invention;
FIG. 5 is a cross-sectional view of the cam body of the present invention;
FIG. 6 is a schematic structural diagram according to a second aspect of the present invention;
fig. 7 is a schematic view of a disassembled structure of the torsion-resistant assembly of the present invention.
In the figure: the cam connecting shaft is 1-cam connecting shaft, the cam body is 2-cam body, the heat dissipation holes are 201-heat dissipation holes, the heat dissipation channels are 202-heat dissipation channels, the heat conduction copper sheets are 203-heat conduction copper sheets, the cam connecting grooves are 205-cam connecting grooves, the center connecting holes are 206-center connecting holes, the connecting seats are 3-connecting seats, the gear plate is 4-gear plate, the center shaft tube is 5-center shaft tube, the flow guide holes are 6-8-torsion resisting assemblies, the hollow sleeve is 801-802-torsion pull rod, the spherical shaft is 803-804-spherical shaft connecting seats, the positioning seats are 805-806-torsion spring, the center bolt is 9-10-spline groove, the fixing bolt is 11-flange plate, and the flange connecting holes are 13-flange connecting holes.
Detailed Description
As shown in fig. 1, fig. 3 and fig. 6, the present invention provides a technical solution: the utility model provides a powder metallurgy camshaft end combination, including cam connecting axle 1, the surperficial joint of cam connecting axle 1 has the cam body 2, the one end welding on cam connecting axle 1 surface has connecting seat 3, the surface cover of connecting seat 3 is equipped with toothed disc 4, the inside wall of toothed disc 4 is pegged graft and is had central axis pipe 5, a plurality of groups drainage hole 6 have been seted up on the surface of central axis pipe 5, the surface of connecting seat 3 is provided with torsion-resistant subassembly 8, louvre 201 has been seted up to the inside wall of the cam body 2, louvre 201 runs through the cam body 201 and constitutes heat dissipation channel 202, the inside wall of the cam body 2 is provided with along heat dissipation channel 202 evenly distributed's heat conduction copper sheet 203, the cam spread groove 205 that supplies cam connecting axle 1 to penetrate is seted up to the axis department of the cam body 2.
As shown in fig. 2 and 7, the torsion-resistant assembly 8 includes a hollow sleeve 801 and a torsion pull rod 802, a spherical shaft 803 is fixedly connected to both the bottom of the hollow sleeve 801 and the top of the torsion pull rod 802, a spherical shaft connecting seat 804 is rotatably sleeved on the surface of the spherical shaft 803, a positioning seat 805 is fixedly connected to the surface of the cam connecting shaft 1, the spherical shaft 803 can rotate in the spherical shaft connecting seat 804, so as to facilitate rotation, thereby achieving the purpose of torsion conversion of the torsion-resistant assembly 8 on the cam connecting shaft 1, the spherical shaft connecting seat 804 at the bottom of the hollow sleeve 801 is fixedly welded to the surface of the connecting seat 3, the spherical shaft connecting seat 804 at the top of the torsion pull rod 802 is fixedly welded to the surface of the positioning seat 805, a torsion spring 806 is fixedly connected to the inner bottom wall of the hollow sleeve 801, one end of the torsion spring 806 is fixedly connected to the torsion pull rod 802, the torsion pull rod 802 forms an elastic fit with the hollow sleeve 801 through the torsion spring 806, thereby the convenience is with torsion conversion to buffer spring of cam connecting axle 1, thereby the antitorque force performance of improvement cam connecting axle 1 of bigger degree, avoid 1 torsion of cam connecting axle to lead to the fact the damage excessively, connecting seat 3 is cross structure, the surperficial threaded connection of connecting seat 3 has fixing bolt 11, connecting seat 3 assembles integratively through fixing bolt 11 and toothed disc 4, the embedded groove with 3 looks adaptations of connecting seat is seted up to one side of toothed disc 4, the second screw hole with 11 looks adaptations of fixing bolt is seted up to the inner diapire of embedded groove, fixing bolt 11 penetrates the one end of connecting seat 3 and supports the interior diapire of tight second screw hole, thereby make things convenient for personnel installation center central axis pipe 5.
As shown in fig. 4 and 5, the surface of the cam connecting shaft 1 is provided with connecting holes adapted to the drainage holes 6, the drainage holes 6 form airflow channels with the heat dissipation holes 201 through the connecting holes, the number of the heat dissipation holes 201 in each cam body 2 is two, the two heat dissipation holes 202 are symmetrically arranged on the cam body 1, the cam connecting shaft 1 is adapted to the central shaft tube 5, the central shaft tube 5 is tightly attached to the inner side wall of the cam connecting shaft 1 after penetrating into the cam connecting shaft 1, the drainage holes 6 are communicated with the heat dissipation holes 201 and the central shaft tube 5 through the connecting holes, air can circulate in the central shaft tube 5, the drainage holes 6, the connecting holes and the heat dissipation holes 201, heat dissipation is accelerated in the rotation process of the cam body 2, serious abrasion consumption of the cam body 2 due to heat concentration is avoided, the purpose of prolonging the service life of the cam body 2 is achieved, the airflow circulation direction enters the central shaft tube 5 from one end of the central shaft tube 5 close to the flange 12, then the cam shaft sequentially passes through the drainage holes 6, enters the heat dissipation holes 201 after penetrating through the cam connecting shaft through the drainage holes 6, flows to the outer sides of the cam bodies 2 through the heat dissipation holes 201 in the heat dissipation channel 205, one end of the central shaft tube 5 is fixedly connected with a flange plate 12, the surfaces of the flange plate 12 and the gear plate 4 are respectively provided with a plurality of flange connection holes 13, the flange connection holes 13 are annularly arrayed on the surface of the flange plate 12, so that the central shaft tube 5 is conveniently installed on the gear plate 4, the number of the cam bodies 2 is five, the five cam bodies 2 are equidistantly distributed on the surface of the cam connecting shaft 1 and are distributed in a 45-degree crossed manner, the plurality of cam bodies 2 are mutually matched, the working efficiency of the cam connecting shaft 1 can be improved, the cam bodies adopt alloy steel 40Cr, the cam shaft body adopts No. 45 steel, the integration of the functions of a core shaft and a cam is avoided, and the torsional strength of the core shaft and the wear resistance of the cam are improved, meanwhile, the cam body 2 is symmetrically provided with two groups of central connecting holes 206 on the side surface, the inner side wall of the central connecting hole 206 and the surface of the cam connecting shaft 1 are provided with first threaded holes, the inner side wall of each first threaded hole is in threaded connection with a central bolt 9, the two groups of central connecting holes 206 which are symmetrically arranged can be simultaneously penetrated with two central bolts 9 on two sides, the cam body 2 is simultaneously locked by the two central bolts 9, so that the stability of the cam body 2 is improved, one end of each central bolt 9 penetrating into the cam body 2 abuts against the first threaded hole on the surface of the cam connecting shaft 1, so that the cam body 2 is convenient to mount and dismount, the purposes of respectively processing and synchronous assembly are guaranteed, different technological requirements can be met, the purpose of convenient maintenance and replacement of the cam shaft combination is achieved, one end of the cam connecting shaft 1 is provided with a spline groove 10, the spline grooves 10 are rectangular arrays at the shaft ends of the cam connecting shaft 1, so that a bearing seat assembly is conveniently mounted at the shaft ends, the cam connecting shaft 1 is conveniently fixed, and the stability of the cam connecting shaft 1 is improved.
In conclusion, when the powder metallurgy camshaft end combination is used, firstly, the cam body 2 is inserted on the cam connecting shaft 1 through the cam connecting groove 205, the central bolt 9 is inserted into the cam body 2 and then is in threaded connection with the cam connecting shaft 1, the installation of the cam body 2 is completed, the connecting seat 3 at one end of the cam connecting shaft 1 is inserted on the gear disc 4, the fixing bolt 11 is inserted into the connecting seat 3 and then is in threaded connection with the gear disc 4, the central shaft tube 5 is inserted in the cam connecting shaft 1, so that the drainage hole 6 on the surface of the central shaft tube 5 corresponds to the cam body 2, then the flange disc 12 is fixed through the flange connecting hole 13, so that the flange disc 12 is fixedly connected on the gear disc 4, the whole camshaft is divided into a plurality of shaft section units by adopting a sectional structure, the whole camshaft is divided into a plurality of shaft section units, the processing is more convenient, the mass processing is convenient, the cost is reduced, and the single shaft section can be independently replaced after the single shaft section breaks down, the installation and the maintenance are convenient, the drainage hole 6 is communicated with the heat dissipation hole 201 and the central shaft tube 5 through the connecting hole, air can flow in the central shaft tube 5, the drainage hole 6, the connecting hole and the heat dissipation hole 201, the heat conduction copper sheet 205 can guide the heat generated by the cam body 2 into the edge of the heat dissipation channel 205, the heat dissipation in the rotation process of the cam body 2 is accelerated, the serious abrasion and the consumption of the cam body 2 caused by the heat concentration are avoided, the purpose of prolonging the service life of the cam body 2 is achieved, when an external driving mechanism drives the flange plate 3 to rotate, the flange plate 3 drives the cam connecting shaft 1 to drive the cam body 2 to rotate, torsion force is generated in the process, the torsion spring 806 is matched with the torsion pull rod 802 and the hollow core type sleeve 801 to convert the torsion force generated by the cam connecting shaft 1 to the elastic potential energy of the torsion spring 806, thereby completing the transfer of the torsion force, and converting the torsion force to the torsion resisting assembly 8 for consumption, thereby improving the torsion resistance of the cam connecting shaft 1 and improving the working efficiency of the cam connecting shaft 1.
In the description of the present specification, the terms "connect", "mount", "fix", "set", and the like are used in a broad sense, for example, the "connect" may be a fixed connection or an indirect connection through intermediate components without affecting the relationship and technical effects of the components, or may be an integral connection or a partial connection, and as such, it will be understood by those skilled in the art that the specific meanings of the above-mentioned terms in the present invention or the invention may be understood according to specific situations, and although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and alterations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.
Claims (10)
1. The utility model provides a powder metallurgy camshaft end combination, includes cam connecting axle (1), its characterized in that: the surface of the cam connecting shaft (1) is clamped with a cam body (2), one end of the surface of the cam connecting shaft (1) is welded with a connecting seat (3), a gear disc (4) is sleeved on the surface of the connecting seat (3), a central shaft tube (5) is inserted into the inner side wall of the gear disc (4), a plurality of groups of drainage holes (6) are arranged on the surface of the central shaft tube (5), an anti-torsion component (8) is arranged on the surface of the connecting seat (3), the inner side wall of the cam body (2) is provided with a heat dissipation hole (201), the heat dissipation hole (201) penetrates through the cam body (201) to form a heat dissipation channel (202), the inner side wall of the cam body (2) is provided with heat conduction copper sheets (203) which are uniformly distributed along the heat dissipation channel (202), and a cam connecting groove (205) for the cam connecting shaft (1) to penetrate is formed in the axis of the cam body (2).
2. A powder metallurgy camshaft end assembly as set forth in claim 1, wherein: the number of the cam bodies (2) is five, and the five cam bodies (2) are arranged on the surface of the cam connecting shaft (1) at equal intervals.
3. A powder metallurgy camshaft end assembly as set forth in claim 2, wherein: two groups of central connecting holes (206) are symmetrically formed in the side face of the cam body (2), first threaded holes are formed in the inner side wall of each central connecting hole (206) and the surface of the cam connecting shaft (1), and a central bolt (9) is connected to the inner side wall of each first threaded hole in a threaded mode.
4. A powder metallurgy camshaft end assembly as set forth in claim 3, wherein: the cam connecting shaft is characterized in that the central bolt (9) penetrates through one end of the cam body (2) and abuts against a first threaded hole in the surface of the cam connecting shaft (1), a spline groove (10) is formed in one end of the cam connecting shaft (1), and the spline groove (10) is arranged at the shaft end of the cam connecting shaft (1) in a rectangular array mode.
5. A powder metallurgy camshaft end assembly as set forth in claim 1, wherein: the torsion-resistant assembly (8) comprises a hollow sleeve (801) and a torsion pull rod (802), the bottom of the hollow sleeve (801) and the top of the torsion pull rod (802) are fixedly connected with a spherical shaft (803), a spherical shaft connecting seat (804) is rotatably sleeved on the surface of the spherical shaft (803), and a positioning seat (805) is fixedly connected to the surface of the cam connecting shaft (1).
6. A powder metallurgy camshaft end combination according to claim 5, wherein: the spherical shaft connecting seat (804) at the bottom of the hollow sleeve (801) is fixedly welded on the surface of the connecting seat (3), and the spherical shaft connecting seat (804) at the top of the torsion pull rod (802) is fixedly welded on the surface of the positioning seat (805).
7. A powder metallurgy camshaft end combination according to claim 5, wherein: the inner bottom wall of the hollow sleeve (801) is fixedly connected with a torsion spring (806), one end of the torsion spring (806) is fixedly connected with a torsion pull rod (802), and the torsion pull rod (802) is in elastic fit with the hollow sleeve (801) through the torsion spring (806).
8. A powder metallurgy camshaft end assembly as set forth in claim 1, wherein: connecting seat (3) are cross structure, the surperficial threaded connection of connecting seat (3) has fixing bolt (11), connecting seat (3) assemble into an organic wholely through fixing bolt (11) and toothed disc (4), the embedded groove with connecting seat (3) looks adaptation is seted up to one side of toothed disc (4), the second screw hole with fixing bolt (11) looks adaptation is seted up to the inner diapire of embedded groove, fixing bolt (11) penetrate the one end of connecting seat (3) and support tightly the interior diapire of second screw hole.
9. A powder metallurgy camshaft end assembly as set forth in claim 1, wherein: the surface of cam connecting axle (1) is seted up with the connecting hole of drainage hole (6) looks adaptation, drainage hole (6) constitute airflow channel through connecting hole and louvre (201), cam connecting axle (1) and central axis pipe (5) looks adaptation, central axis pipe (5) penetrate behind cam connecting axle (1) and closely laminate with the inside wall of cam connecting axle (1).
10. A powder metallurgy camshaft end assembly as set forth in claim 1, wherein: the one end fixedly connected with ring flange (12) of central axis pipe (5), a plurality of flange connecting hole (13) have all been seted up on the surface of ring flange (12) and gear dish (4), flange connecting hole (13) are the surface of annular array at ring flange (12).
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| CN202111313217.4A CN113958685B (en) | 2021-11-08 | 2021-11-08 | Powder metallurgy camshaft end combination |
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| CN202111313217.4A CN113958685B (en) | 2021-11-08 | 2021-11-08 | Powder metallurgy camshaft end combination |
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Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05146866A (en) * | 1991-02-20 | 1993-06-15 | Kiriyuu Kikai Kk | Hollow chilled cam shaft and production thereof |
| JPH09250626A (en) * | 1996-03-14 | 1997-09-22 | Riken Corp | Internal oil feeding type hollow cam shaft |
| EP0821141A1 (en) * | 1996-07-24 | 1998-01-28 | Bayerische Motoren Werke Aktiengesellschaft, Patentabteilung AJ-3 | Internal combustion engine valve drive with rocker arm supported by eccentric shaft |
| JP2007309417A (en) * | 2006-05-18 | 2007-11-29 | Aisin Ai Co Ltd | Operating device for transmission |
| CN101368250A (en) * | 2008-09-08 | 2009-02-18 | 四川大学 | Rare earth additive high-carbon content cam material and powder metallurgy combined hollow camshaft |
| DE102008058110A1 (en) * | 2008-11-18 | 2010-05-20 | Hydraulik-Ring Gmbh | Camshaft adjuster i.e. vane type camshaft adjuster, has stator rotatable against spring force of spring i.e. torsion bar spring, opposite to partial hollow composite camshaft, where spring is partially and radially arranged within rotor hub |
| KR20100010948U (en) * | 2009-04-29 | 2010-11-08 | 주식회사 서진캠 | Cam lobe for assemble type cam shaft |
| CN102562201A (en) * | 2012-02-20 | 2012-07-11 | 重庆长安汽车股份有限公司 | Assembled camshaft |
| CN202991159U (en) * | 2012-11-30 | 2013-06-12 | 长城汽车股份有限公司 | Multifunction assembled camshaft |
| CN203830727U (en) * | 2014-04-23 | 2014-09-17 | 重庆西源凸轮轴有限公司 | Sinter molding assembled camshaft with powder metallurgy cams |
| CN106837453A (en) * | 2017-01-19 | 2017-06-13 | 奇瑞汽车股份有限公司 | A kind of Combined hollow camshaft and its processing technology |
| CN109139166A (en) * | 2018-08-03 | 2019-01-04 | 安徽天裕汽车零部件制造有限公司 | A kind of automobile camshaft |
| CN211287818U (en) * | 2019-12-31 | 2020-08-18 | 仪征市联兴汽车配件制造有限公司 | Wear-resistant camshaft casting |
-
2021
- 2021-11-08 CN CN202111313217.4A patent/CN113958685B/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05146866A (en) * | 1991-02-20 | 1993-06-15 | Kiriyuu Kikai Kk | Hollow chilled cam shaft and production thereof |
| JPH09250626A (en) * | 1996-03-14 | 1997-09-22 | Riken Corp | Internal oil feeding type hollow cam shaft |
| EP0821141A1 (en) * | 1996-07-24 | 1998-01-28 | Bayerische Motoren Werke Aktiengesellschaft, Patentabteilung AJ-3 | Internal combustion engine valve drive with rocker arm supported by eccentric shaft |
| JP2007309417A (en) * | 2006-05-18 | 2007-11-29 | Aisin Ai Co Ltd | Operating device for transmission |
| CN101368250A (en) * | 2008-09-08 | 2009-02-18 | 四川大学 | Rare earth additive high-carbon content cam material and powder metallurgy combined hollow camshaft |
| DE102008058110A1 (en) * | 2008-11-18 | 2010-05-20 | Hydraulik-Ring Gmbh | Camshaft adjuster i.e. vane type camshaft adjuster, has stator rotatable against spring force of spring i.e. torsion bar spring, opposite to partial hollow composite camshaft, where spring is partially and radially arranged within rotor hub |
| KR20100010948U (en) * | 2009-04-29 | 2010-11-08 | 주식회사 서진캠 | Cam lobe for assemble type cam shaft |
| CN102562201A (en) * | 2012-02-20 | 2012-07-11 | 重庆长安汽车股份有限公司 | Assembled camshaft |
| CN202991159U (en) * | 2012-11-30 | 2013-06-12 | 长城汽车股份有限公司 | Multifunction assembled camshaft |
| CN203830727U (en) * | 2014-04-23 | 2014-09-17 | 重庆西源凸轮轴有限公司 | Sinter molding assembled camshaft with powder metallurgy cams |
| CN106837453A (en) * | 2017-01-19 | 2017-06-13 | 奇瑞汽车股份有限公司 | A kind of Combined hollow camshaft and its processing technology |
| CN109139166A (en) * | 2018-08-03 | 2019-01-04 | 安徽天裕汽车零部件制造有限公司 | A kind of automobile camshaft |
| CN211287818U (en) * | 2019-12-31 | 2020-08-18 | 仪征市联兴汽车配件制造有限公司 | Wear-resistant camshaft casting |
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|---|---|
| CN113958685B (en) | 2024-03-12 |
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