CN209569072U - Regulating element and engine with it - Google Patents

Abstract

The utility model discloses a kind of regulating element and with its engine.Regulating element is suitable for being hinged and connected with the crankshaft of engine, crankshaft hole is provided on the regulating element, the crankshaft wears the crankshaft hole, reduction groove is provided with around the crankshaft hole.Regulating element according to the present utility model, by the way that reduction groove is arranged on regulating element, the weight of regulating element can not only be mitigated, realize the lightweight of engine, it can also be conducive to reduce the inertia force of regulating element in the running, the stress for dispersing bearing shell, can prevent bearing shell because stress it is excessive caused by the disabled status such as bearing shell fracture generation, to guarantee that the functional reliability of engine is high.

Description

Regulating element and engine with it

Technical field

The utility model relates to technical field of engines, start in particular to a kind of regulating element and with it Machine.

Background technique

Engine is at present in order to meet the workload demand under different operating conditions, and guarantees to always work in engine most preferably Workspace, it is general to be improved by changing engine piston top dead center position to change engine compression ratio Dynamic property reduces oil consumption, and can reduce engine emission.

The currently used structure for changing engine piston top dead center position is multi link machine, but is being worked in engine When, for regulating element because of inertia force reason, stress is larger, and itself more heavy, intensity of regulating element not can guarantee yet；And And other components with regulating element linkage, for example bearing shell etc., therefore stress is larger, and failure risk is caused to increase.

Utility model content

In view of this, the utility model is directed to a kind of regulating element and the engine with it, to solve to adjust member Part itself is overweight, so as to cause not can guarantee engine work.

In order to achieve the above objectives, the technical solution of the utility model is achieved in that

The regulating element of the utility model embodiment is suitable for being hinged and connected with the crankshaft of engine, sets on the regulating element It is equipped with crankshaft hole, the crankshaft wears the crankshaft hole, reduction groove is provided with around the crankshaft hole.

Some embodiments according to the present utility model, the regulating element are swollen disconnected molded part, and the regulating element includes: First seperated and the second fission, the described first seperated and described second seperated contact surface is swollen section, and the crankshaft hole is simultaneously Positioned at described first is seperated and second fission on, the first pin hole is provided on first fission, on second fission It is provided with the second pin hole.

Further, the reduction groove includes: the first reduction groove and the second reduction groove, the first reduction groove Be arranged on first fission, it is described second reduction groove be arranged on second fission, it is described first reduction groove and The second reduction groove is arranged around the crankshaft hole.

Further, the minimum range between the first reduction groove and the swollen section, the second reduction groove Minimum range between the swollen section is 2mm-7mm.

Specifically, described first it is seperated and it is described second it is seperated fixation is realized by fastener, the fastener includes: the One bolt and the second bolt, first bolt and second bolt are distributed in the two sides of the crankshaft hole, and described first The direction of bolt and second bolt is opposite.

Further, it is provided with the first bolt hole and the first threaded hole on first fission, is set on second fission It is equipped with the second bolt hole and the second threaded hole, first bolt screws in second threaded hole after passing through first bolt hole Interior, second bolt screws in first threaded hole after passing through second bolt hole.

Further, pit is provided at each bolt hole, the maximum gauge of the pit is greater than the bolt of corresponding bolt Loading end.

Further, the bigger diameter end of the pit and corresponding swollen section are concordant, and miner diameter end and the bolt of the pit are held Section is parallel, and the joint face between the both ends of the pit is arc surface.

Some embodiments according to the present utility model, the outer surface of the regulating element are black skin, the crankshaft hole End face is provided with central boss, and distance of black skin is 0.2mm-1mm where the central boss is higher than it.

Specifically, lightening recesses are provided on the regulating element, the lightening recesses include:

First lightening recesses, first lightening recesses are arranged on first fission；

Second lightening recesses, second lightening recesses are arranged on second fission.

Further, the end face of first pin hole is provided with first boss, one end of first lightening recesses and institute It states first boss to be connected, the other end of first lightening recesses is parallel with the swollen section.

Specifically, the minimum range between first lightening recesses and the swollen section is 2mm-4mm, and described first The groove depth of lightening recesses is 2mm-3mm；

Minimum range between second lightening recesses and the swollen section is 2mm-4mm, and second loss of weight is recessed The groove depth of slot is 2mm-3mm.

Specifically, connecting rod is hinged and connected at first pin hole with the regulating element, control-rod and adjusting member Part is hinged and connected at second pin hole, and the first escape groove is provided on first fission, and first escape groove is used for The connecting rod is avoided, the second escape groove is provided on second fission, second escape groove is for avoiding the control-rod.

Specifically, the regulating element is power forging part.

Compared with the existing technology, regulating element described in the utility model has the advantage that

By the way that reduction groove is arranged on regulating element, it can not only mitigate the weight of regulating element, realize engine Lightweight can also be conducive to reduce regulating element inertia force in the running, disperse the stress of bearing shell, can prevent bearing shell because The generation of the disabled status such as bearing shell fracture caused by stress is excessive, to guarantee that the functional reliability of engine is high.

Another purpose of the utility model is to propose a kind of engine, including above-mentioned regulating element.

Compared with the existing technology, engine described in the utility model has the advantage that

Engine described in the utility model, regulating element use powder forging process and swollen disconnected processing technology, mention The high intensity of regulating element, while overcoming engine in the running, shearing force caused by crankshaft ensure that the strong of regulating element Degree is enough, and the first bolt and the second bolt are high-strength bolt, further increase the reliable operation of regulating element Property；By setting reduction groove and lightening recesses, the weight of regulating element is effectively reduced, while regulating element can also be made Mean forced；By the way that pit is arranged at the first bolt hole and the second bolt hole, bolt pressure-bearing face pressure can be effectively relieved Routed problem, while the bonding strength of the first bolt and the second bolt can also be improved, and regulating element can also be weakened Rigidity, guarantee engine in the running, improve the residual pre-tightening forces of the first bolt and the second bolt, guarantee first it is seperated with And second seperated connection reliability it is high.

Detailed description of the invention

The attached drawing for constituting a part of the utility model is used to provide a further understanding of the present invention, this is practical new The illustrative embodiments and their description of type are not constituteed improper limits to the present invention for explaining the utility model.In In attached drawing:

Fig. 1 be piston, connecting rod, regulating element, crankshaft, compression ratio adjustment mechanism assembling schematic diagram；

Fig. 2 is the schematic diagram of regulating element；

Fig. 3 is the stereoscopic schematic diagram of regulating element；

Fig. 4 is the cross-sectional view of regulating element.

Description of symbols:

Piston 1, connecting rod 2, crankshaft 4, trunnion 41, connecting rod neck 42, compression ratio adjustment mechanism 7, control-rod 5, eccentric shaft 6, Drive shaft 61, eccentric wheel 62, piston pin A, link pin B, connecting rod neck pin C, control lever pin D, regulating element 3, the first fission 31, the One pin hole 311, first boss 312, the first bolt hole 313, the first threaded hole 314, the first escape groove 315, the second fission 32, Two pin holes 321, second boss 322, the second bolt hole 323, the second threaded hole 324, the second escape groove 325, crankshaft hole 33, first The reduction reduction of groove 341, second groove 342, the first bolt 351, the second bolt 352, pit 36, central boss 37, first subtract Weight groove 381, the second lightening recesses 382, swollen section 40.

Specific embodiment

It should be noted that in the absence of conflict, the feature in the embodiments of the present invention and embodiment can To be combined with each other.

The utility model is described in detail below with reference to Fig. 1-Fig. 4 and in conjunction with the embodiments.

Shown in referring to Fig.1, engine may include: piston 1, connecting rod 2, regulating element 3, crankshaft 4 and compression ratio adjustment machine Structure 7.

Specifically, the regulating element 3 of the utility model embodiment is suitable for being hinged and connected with the crankshaft 4 of engine, and piston 1 Can in the cylinder motion of engine, as shown in connection with fig. 1, piston 1 can the up and down direction in the cylinder holes of cylinder along Fig. 1 move.

The trunnion 41 of crankshaft 4 is rotatably arranged on the cylinder body of engine, the connecting rod neck 42 and trunnion 41 of crankshaft 4 Central axis be staggered.The connecting rod neck 42 of crankshaft 4 can have multiple.

Regulating element 3 is set on one of connecting rod neck 42, specifically, crankshaft hole 33 is provided on regulating element 3, Connecting rod neck 42 is located in crankshaft hole 33, and regulating element 3 can be rotated mutually with connecting rod neck 42.In some embodiments, regulating element 3 Connecting rod neck pin C or bearing shell can be set between connecting rod neck 42, to reduce the abrasion of regulating element 3 and connecting rod neck 42, extended The part service life of engine.

Connecting rod 2 is connected between piston 1 and regulating element 3, that is to say, that the first end of connecting rod 2 is connect with piston 1, even The second end of bar 2 is connect with regulating element 3.Specifically, the first end of connecting rod 2 and piston 1 are hinged, the second end of connecting rod 2 with Regulating element 3 is hinged, so that can occur mutually to rotate between connecting rod 2 and piston 1, can send out between connecting rod 2 and regulating element 3 Raw mutually rotation, in this way, connecting rod 2 can be driven to move, and then band when regulating element 3 is rotated around the connecting rod neck 42 that it is arranged Piston 1 moves up and down.

Compression ratio adjustment mechanism 7 is used for position of the regulating piston 1 in cylinder, enables piston 1 in top dead centre or lower dead center The position of opposite cylinder 8 is changed, and then changes compression ratio.As shown in Figure 1, compression ratio adjustment mechanism 7 may include: bias Axis 6 and control-rod 5, control-rod 5 are connected between regulating element 3 and eccentric shaft 6, and the first end and regulating element 3 of control-rod 5 connect It connects, and the second end of control-rod 5 is connected with 6 bias of eccentric shaft, with when eccentric shaft 6 rotates, the power of eccentric shaft 6 be can be controlled Bar 5 is transferred to regulating element 3, and the connecting rod neck 42 for being arranged regulating element 3 around it rotates.

Specifically, push lever 5 rotates when eccentric shaft 6 rotates, control-rod 5 pushes regulating element 3 to rotate, and adjusts Element 3 pushes connecting rod 2 to rotate, and connecting rod 2 pushes piston 1 to move up and down again, thus position of the adjusting piston 1 in cylinder.It is living Plug 1 moves up and down, and can change combustion chamber volume size, to change compression ratio.That is, compression ratio adjustment mechanism 7 can rise To the effect for changing engine compression ratio.By changing compression ratio, the workload demand of different engines can be met, engine is made to begin In best effort area, not only having improved dynamic property in this way reduces oil consumption, but also reduces discharge, has well solved power for work eventually Property with economy, the contradiction of emission performance, so that engine is all worked always in optimum oil consumption area.

It should be noted that " first end " of part refers to the upper end in Fig. 1 in the description of the present invention, " the Two ends " refer to the lower end in Fig. 1, and still the word of the indicating positions such as " first end ", " second end ", "upper", "lower" is only Description is convenient, and is not construed as limitations of the present invention.

In a particular embodiment, the number of parts of compression ratio adjustment mechanism 7 is less, can reach change engine compresses Thus the purpose of ratio advantageously reduces the assembly process of engine, and number of parts is less, is conducive to improve compression ratio adjustment machine The functional reliability of structure 7.

Shown in referring to Fig.1, eccentric shaft 6 may include: drive shaft 61 and eccentric wheel 62, and drive shaft 61 is rotatably arranged in On cylinder body, eccentric wheel 62 is set in drive shaft 61, and eccentric wheel 62 and drive shaft 61 are relatively fixed.The first end of control-rod 5 Hingedly with regulating element 3, the second end and drive shaft 61 of control-rod 5 are hinged by eccentric wheel 62, so that control-rod 5 and tune Section element 3 can be rotated mutually, and control-rod 5 can be rotated mutually with drive shaft 61.

Further, compression ratio adjustment mechanism 7 can also include: driving device, and driving device is connected with drive shaft 61, and Driving device is for driving drive shaft 61 to rotate.Specifically, driving device is that drive shaft 61 provides driving moment, make drive shaft 61 rotations.

The first end of connecting rod 2 is hinged by piston pin A with piston 1, and the second end and regulating element 3 of connecting rod 2 pass through connecting rod It is hinged to sell B.

Further, the first end of control-rod 5 and regulating element 3 are hinged by control lever pin D, link pin B and control-rod The two sides for the connecting rod neck 42 that regulating element 3 is arranged are arranged in pin D.In other words, the first pin hole 311 is provided on regulating element 3 With the second pin hole 321, the two sides of the crankshaft hole 33 of regulating element 3 are arranged in the first pin hole 311 and the second pin hole 321, it is preferable that The line of centres of first pin hole 311 and the second pin hole 321 passes through the center of crankshaft hole 33.Link pin B is located at the first pin hole 311 Interior, control lever pin D is located in the second pin hole 321.

Crankshaft 4 is arranged between piston 1 and eccentric shaft 6, so that crankshaft 4 is closer to piston 1, thus in fuel burning When, the kinetic energy of piston 1 can pass to rapidly crankshaft 4, reduce kinetic energy rejection.

The regulating element 3 of the utility model is described in detail below with reference to Fig. 2-Fig. 4.

Following for can the structure preferably to regulating element 3 be described, with regulating element 3 and connecting rod neck 42 it Between be arranged bearing shell for, to illustrate the structure feature of regulating element 3.

With reference to shown in Fig. 2-Fig. 3, it is provided with reduction groove around crankshaft hole 33, in a particular embodiment, works as engine When operating, because it is excessive by the grip force between crankshaft 4 and regulating element 3 to lead to bearing shell the reason of centrifugal force, to be easy to cause Bearing shell fracture causes engine operating abnormal.

Therefore, it in order to guarantee the normal operation of engine, by the way that reduction groove is arranged around crankshaft hole 33, and weakens Groove is located at the maximum weighted point of bearing shell, so as to so that bearing shell mean forced, and then may be implemented dispersion bearing shell stress, Guarantee that engine can run well.

The regulating element 3 of the utility model can not only mitigate adjusting by the way that reduction groove is arranged on regulating element 3 The weight of element 3 realizes the lightweight of engine, can also be conducive to reduce the inertia force in the running of regulating element 3, can be with Prevent bearing shell because stress it is excessive caused by bearing shell fracture etc. disabled status generation, to guarantee the functional reliability of engine It is high.

Further, as shown in figs 2-4, regulating element 3 can be swollen disconnected molded part, and regulating element 3 may include: the One fission 31 and the second fission 32, i.e. regulating element 3 are cooperatively connected by the first fission 31 seperated with second 32.First is seperated 31 and second fission 32 contact surface be swollen section 40, and first fission 31 seperated with second 32 swollen section 40 have centainly Roughness.

Further, crankshaft hole 33 is located at simultaneously on the first fission 31 and the second fission 32, i.e., crankshaft hole 33 is located at first The junction of fission 31 seperated with second 32, and the first pin hole 311 is provided on the first fission 31, it is provided on the second fission 32 Second pin hole 321, the first pin hole 311 are suitable for being cooperatively connected with connecting rod 2 by link pin B, and the second pin hole 321 is suitable for and control-rod 5 by control lever pin D connection, to guarantee the normal operation of engine.

Further, as shown in Fig. 2-Fig. 3, reduction groove may include: the first reduction groove 341 and the second reduction groove 342, the first reduction groove 341 is arranged on the first fission 31, and the second reduction groove 342 is arranged on the second fission 32, and first It weakens groove 341 and the second reduction groove 342 is arranged around crankshaft hole 33, not only can effectively mitigate the first fission 31 and second The weight of fission 32, and can reduce the first seperated 31 seperated with second 32 inertia force in the running, prevent bearing shell because by The generation of the disabled status such as bearing shell fracture caused by power is excessive, and the first reduction groove 341 and the second reduction groove 342 surround Crankshaft hole 33, so as to so that bearing shell mean forced, to guarantee that the functional reliability of engine is high.

Further, first reduction groove 341 and swollen section 40 between minimum range, second reduction groove 342 with it is swollen Minimum range between section 40 is 2mm-7mm, may be implemented maximumlly to disperse bearing shell stress, in a particular embodiment, Minimum range, the second reduction groove 342 between first reduction groove 341 and swollen section 40 and the most narrow spacing between swollen section 40 From can be 3mm or 4mm or 5mm etc..

Specifically, as shown in figure 4, the first fission 31 and the second fission 32 realize fixation by fastener, fastener can be with It include: the first bolt 351 and the second bolt 352, the first bolt 351 and the second bolt 352 are distributed in the two sides of crankshaft hole 33, and The direction of first bolt 351 and the second bolt 352 is on the contrary, to which the first fission 31 seperated with second 32 to be fixed together.

By installing the first bolt 351 and the second bolt 352 on the contrary with direction, it can not only be conducive to raising The bonding strength of one fission 31 seperated with second 32, can also improve the intensity of itself of bolt, traditional with same direction cloth The bolt set, one of in two bolt can be overlapped with the position of the first pin hole 311 or the second pin hole 321, to lead Cause can not install bolt, therefore, to solve the above-mentioned problems with the bolt of same direction arrangement, need to be forced to increase the first pin hole 311 arrive the distance of crankshaft hole 33 to the distance of crankshaft hole 33 or the second pin hole 321, to guarantee that bolt can be installed smoothly, but this It will lead to again and be unfavorable for the realization lightweight of regulating element 3.

So by by the direction of the first bolt 351 and the second bolt 352 on the contrary, can not only guarantee the first fission 31 Seperated with second 32 connection reliability is high, and also ensures the quality and small volume of regulating element 3, to be conducive to Realize the lightweight of engine.

Preferably, the strength grade of the first bolt 351 and the second bolt 352 is not less than 14.9 grades.In a particular embodiment, When engine is in maximum outbreak pressure, power suffered by the first pin hole 311 and the second pin hole 321 can make first fission 31 with Second fission 32 generates the trend of pre-separation, and specifically, power suffered by the first pin hole 311 and the second pin hole 321 can decompose At the fastening of first bolt 351 and the second bolt 352, therefore, the first pin hole 311 and the second pin hole 321 will receive larger Pulling force, therefore, in order to guarantee that the first fission 31 seperated with second 32 will not be generated and be separated, need to improve the first bolt 351 with And second bolt 352 pretightning force, but since regulating element 3 keeps for the first bolt 351 of installation and second bolt 352 Space is limited, can not select the specification for increasing the first bolt 351 and the second bolt 352, therefore, pass through selection biggish first The strength grade of bolt 351 and the second bolt 352, specifically, the strength grade of the first bolt 351 and the second bolt 352 is not Lower than 14.9 grades, fastening adjustment element 3 can be realized, prevent the first fission 31 seperated with second 32 from separating, to guarantee The normal operation of engine.

Further, as shown in figure 4, being provided with the first bolt hole 313 and the first threaded hole 314 on the first fission 31, the One bolt hole 313 is parallel with the axis of the first threaded hole 314 but is not overlapped, and specifically, by the way that the first bolt hole 313 is arranged, is First bolt 351 provides inlet and outlet, by the way that the first threaded hole 314 is arranged, provides support to fix the second bolt 352.The The second bolt hole 323 and the second threaded hole 324, the axis of the second bolt hole 323 and the second threaded hole 324 are provided on diad 32 Line is parallel but is not overlapped, and specifically, by the way that the second bolt hole 323 is arranged, inlet and outlet is provided for the second bolt 352, by setting The second threaded hole 324 is set, provides support to fix the first bolt 351.

Further, on the thickness direction of regulating element 3, the position of the first bolt hole 313 and the first reduction groove 341 Overlapping position and the second bolt hole 323 and the wall thickness of the position overlapping position of the second reduction groove 342 are thicker, that is to say, that first Bolt hole 313 corresponding first weakens the slot bottom of the slot bottom of groove 341, the corresponding second reduction groove 342 of the second bolt hole 323 It is shallower, it is ensured that the intensity of the first bolt hole 313 and the second bolt hole 323 is enough.

In a particular embodiment, the first bolt 351 screws in the second threaded hole 324 after passing through the first bolt hole 313, and second Bolt 352 screws in the first threaded hole 314 after passing through the second bolt hole 323, to realize the first bolt 351 and the second bolt 352 with towards opposite connection, and then guarantee the connection reliability height of the first fission 31 seperated with second 32.

Preferably, the specification of the first bolt 351 and the second bolt 352 is M11-M12.In a particular embodiment, first Bolt hole 313 and the second bolt hole 323 need to guarantee the screwing length of 1.1 times of screw thread specifications, and therefore, screwing length minimum exists Between 11.1-13.2mm, so that the specification of the first bolt 351 and the second bolt 352 is M11-M12, it is ensured that the first spiral shell Bolt 351 can cooperate reliably with the first bolt hole 313, and the second bolt 352 can cooperate reliably with the second bolt hole 323.

The axis of first bolt 351 and the second bolt 352 is orthogonal with the cylinder holes of cylinder, in a particular embodiment, first Fission 31 and the second fission 32 are when being cooperatively connected, due to the contact surface (i.e. swollen section 40) of the first fission 31 and the second fission 32 Roughness it is larger, thus first fission 31 seperated with second 32 between junction frictional force it is larger, can solve due to Engine is in arrangement, and since regulating element 3 is not accomplished at engine maximum weighted, the axis of bolt and the cylinder holes of cylinder are flat Row, has shearing force so as to cause the parting surface of regulating element 3, and then be easy to cause bolt fracture problem.

Optionally, the first bolt 351 and the second bolt 352 are flange bolts.First bolt 351 and the second bolt 352 head is flange, and flange is relatively large in diameter, it is possible to increase the carrying stress surface of bolt.

Further, it is provided with pit 36 at each bolt hole, pit 36 is in bowl-shape, and the bigger diameter end of pit 36 is towards swollen The direction of section 40, the maximum gauge of pit 36 are greater than the bolt loading end of corresponding bolt.

Specifically, in order to easy to process, and guarantee the screwing length of the first bolt 351 and the second bolt 352, by pit 36 designs are designed in swollen section 40 in the side of the first bolt 351 and the correspondence bolt hole of the second bolt 352.

In a particular embodiment, in order to guarantee the lightweight of regulating element 3, therefore, the first bolt 351 and second is installed The space of bolt 352 is limited, and the specification so as to cause the first bolt 351 and the second bolt 352 is restricted, accordingly, the The flange diameter size of one bolt 351 and the second bolt 352 is also limited, so, in order to guarantee first fission 31 with Second fission, 32 connection is reliable, keeps the pretightning force of the first bolt 351 and the second bolt 352 larger, but the flange of smaller size Because intensity is inadequate, the pressure-bearing surface of the first bolt 351 and the second bolt 352 is easy to cause to collapse.

Therefore, by the way that pit 36 is arranged at each bolt hole, the first bolt 351 and the second bolt 352 can be alleviated Pressure-bearing surface the excessive problem of pressure, specifically, when the first bolt 351 and the second bolt 352 are tightened, pit 36 is being turned round It under the action of square, deforms, the power of the pressure-bearing surface of the first bolt 351 and the second bolt 352 is alleviated therewith, so as to slow It solves pressure-bearing surface and is crushed problem.

Also, by setting pit 36, the rigidity of regulating element 3 can also be weakened, be conducive to improve the first bolt 351 with And second bolt 352 residual pre-tightening forces, specifically, engine is under Operation Conditions, the first bolt 351 and the second bolt 352 overcome service load remaining by service load and pretightning force, in the pretightning force of the first bolt 351 and the second bolt 352 Under the action of partial pretightning force, guarantee that the first fission 31 seperated with second 32 will not be separated.

Therefore, by the way that pit 36 is arranged, it can not only prevent the first bolt 351 and the pressure-bearing surface of the second bolt 352 from collapsing It bursts, the rigidity of regulating element 3 can also be weakened, guarantee engine in the running, the first bolt 351 and the second spiral shell can be improved The residual pre-tightening forces of bolt 352, to guarantee that the connection reliability of the first fission 31 seperated with second 32 is high.

Further, refering to what is shown in Fig. 4, the bigger diameter end of pit 36 and corresponding swollen section 40 are concordant, the path of pit 36 End is parallel with bolt loading end, and the joint face between the both ends of pit 36 is arc surface.

In a particular embodiment, deformation ratio regulating element 3 caused by pit 36 is larger, therefore, the both ends of pit 36 Between joint face be arc surface can prevent stress from concentrating.

Preferably, the maximum gauge (i.e. the bigger diameter end diameter of pit 36) contacted between pit 36 and swollen section 40 be greater than or Person is equal to the pressure-bearing surface of the first bolt 351 and the second bolt 352, guarantees the pressure-bearing of the first bolt 351 and the second bolt 352 Power suffered by face can be transitioned at pit 36, so as to avoid pressure-bearing surface from being crushed.

Preferably, the radius of the joint face between the both ends of pit 36 can be R3-R7mm, in a particular embodiment, recessed The radius of joint face between the both ends in hole 36 can be 4mm or 6mm etc..

Optionally, pit 36 at a distance from the black skin both ends of the first fission 31 and the second fission 32 in 2-5mm, can be with Prevent pit 36 excessive, so as to cause first fission 31 seperated with second 32 contact surface because stress it is excessive, generation yield deformation, And then damage regulating element 3.

It in a particular embodiment, can be at a distance from pit 36 and the black skin both ends of the first fission 31 and the second fission 32 For 3mm or 4mm etc..

Preferably, the height of 36 bigger diameter end of pit can be high for the screw thread polished rod of the first bolt 351 or the second bolt 352 The 1/2-3/5 of degree, it is ensured that bolt pretightening is transferred to pit 36, while can to avoid bolt hole because pressure-bearing surface wall thickness compared with It is small, and pressure-bearing surface is caused to be surrendered.

In a particular embodiment, the height of 36 bigger diameter end of pit can be the first bolt 351 or the spiral shell of the second bolt 352 13/25 or 14/25 etc. of line polished rod height.

Further, the outer surface of regulating element 3 is black skin, can simplify the manufacturing procedure of regulating element 3, is conducive to Reduce the cost of regulating element 3.

Further, as shown in Fig. 2-Fig. 3, the end face of crankshaft hole 33 is provided with central boss 37, and central boss 37 is higher than The distance of black skin where it is 0.2mm-1mm.The height of black skin where height by the way that central boss 37 is arranged is higher than it, The stress of bearing shell can be further reduced, in a particular embodiment, blank where being higher than it due to the height of central boss 37 At work, the complete cycle equalization of bearing shell stress may be implemented in the height in face, therefore, bearing shell, to advantageously reduce bearing shell hair A possibility that raw fracture, meanwhile, black skin where only the height of central boss 37 is higher than it can also mitigate regulating element 3 Weight, to be advantageously implemented the lightweight of engine.

In a particular embodiment, distance of black skin can be 0.4mm or 0.6mm where central boss 37 is higher than it Deng.

Specifically, as shown in Fig. 2-Fig. 3, lightening recesses are provided on regulating element 3, lightening recesses may include: first Lightening recesses 381 and the second lightening recesses 382, the first lightening recesses 381 are arranged on the first fission 31, the second lightening recesses 382 are arranged on the second fission 32.

By the first lightening recesses 381 of setting and the second lightening recesses 382, regulating element 3 can be further reduced Weight.

Further, the end face of the first pin hole 311 is provided with first boss 312, one end of the first lightening recesses 381 and the One boss 312 is connected, and the other end of the first lightening recesses 381 is parallel with swollen section 40.In a particular embodiment, since first subtracts One end of weight groove 381 is connected with first boss 312, therefore when the engine runs, and the stress of the first pin hole 311 can be made flat The problems such as being homogenized, the first pin hole 311 can be prevented to be broken.

Further, with reference to shown in Fig. 2-Fig. 3, the end face of the second pin hole 321 is provided with second boss 322, the second loss of weight Groove 382 is connected close to second boss 322 and with crankshaft hole 33, and the shape of second boss 322 is approximately round, and preferably Ground, first boss 312, second boss 322 are concordant with the central boss 37.In other words, first boss 312, second boss In the same plane, i.e., first boss 312, the both ends of the surface of second boss 322 are also high for 322 end face and the end face of central boss 37 Thus black skin out is conducive to the stress for improving the first pin hole 311 and the second pin hole 321, and first boss 312, second boss 322 be higher than it where black skin distances and central boss 37 be higher than its place black skin and being equidistant, thereby facilitate the The processing of one boss 312, second boss 322,37 both ends end face of central boss.

In a particular embodiment, the weight that the second lightening recesses 382 should mitigate the second fission 32 takes into account second point again Therefore second lightening recesses 382 are designed as approximate circle by the deformation of body 32, can not only guarantee that the second lightening recesses 382 exist The edge and swollen section 40 of second fission 32 nearby reduce loss of weight range, and the second seperated 32 positions of non-loss of weight can also be made to support Resistance to deformation, to guarantee that the deformation of regulating element 3 is smaller.

Specifically, the minimum range between the first lightening recesses 381 and swollen section 40 is 2mm-4mm, and the first loss of weight is recessed The groove depth of slot 381 is 2mm-3mm, it is ensured that in the first enough situations of seperated 31 overall stiffness, the quality of the first fission 31 It is relatively light, to be advantageously implemented the lightweight of engine.

In a particular embodiment, the minimum range between the first lightening recesses 381 and swollen section 40 can for 2.5mm or The groove depth of person 3.5mm etc., the first lightening recesses 381 can be 2.5mm or 3.5mm etc..

Specifically, the minimum range between the second lightening recesses 382 and swollen section 40 is 2mm-4mm, and the second loss of weight is recessed The groove depth of slot 382 is 2mm-3mm, it is ensured that in the second enough situations of seperated 32 overall stiffness, the quality of the second fission 32 It is relatively light, to be advantageously implemented the lightweight of engine.

In a particular embodiment, the minimum range between the second lightening recesses 382 and swollen section 40 can for 2.5mm or Person 3.5mm etc., the groove depth of the second lightening recesses 382 are 2.3mm or 2.6mm etc..

Specifically, with reference to shown in Fig. 1-Fig. 2, connecting rod 2 is hinged and connected at the first pin hole 311 with regulating element 3, control-rod 5 are hinged and connected at the second pin hole 321 with regulating element 3, and the first escape groove 315, the first evacuation are provided on the first fission 31 Slot 315 is provided with the second escape groove 325, the second escape groove 325 is for avoiding control for avoiding connecting rod 2 on second fission 32 Bar 5, thus guarantee that regulating element 3 can avoid the motion profile of connecting rod 2 and control-rod 5 when engine operates, And then guarantee that engine can run well.

Further, the boundary line of the first escape groove 315 and the second escape groove 325 is two sections of straight lines, and wherein one On be provided with circular arc evacuation section, avoided so as to the motion profile further to connecting rod 2 or control-rod 5, favorably In the reliability for improving normal working of engine.

Specifically, regulating element 3 is power forging part, since regulating element 3 is provided with reduction groove and lightening recesses, Therefore power suffered by 3 entirety of regulating element is larger, and therefore, regulating element 3 is that power forging part can guarantee regulating element 3 The problems such as intensity is enough, prevents when engine operates, and regulating element 3 is broken.

According to the engine of the utility model another aspect embodiment, the regulating element 3 including above-described embodiment.

The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model Protection scope within.

Claims (14)

1. a kind of regulating element (3), which is characterized in that the regulating element (3) is suitable for crankshaft (4) hinged phase with engine Even, it is provided with crankshaft hole (33) on the regulating element (3), the crankshaft (4) wears the crankshaft hole (33), the crankshaft hole (33) reduction groove is provided with around；

The regulating element (3) includes: first seperated (31) and second seperated (32), and the is provided on first fission (31) One bolt hole (313) is provided with the second bolt hole (323) on second seperated (32), and first bolt (351) passes through institute It states the first bolt hole (313) (32) seperated with described second afterwards to fix, second bolt (352) passes through second bolt hole (323) (31) seperated with described first are fixed afterwards, are provided with pit (36) at each bolt hole, and the maximum of the pit (36) is straight Diameter is greater than the bolt loading end of corresponding bolt.

2. regulating element (3) according to claim 1, which is characterized in that the regulating element (3) is swollen disconnected molded part, The contact surface of described first seperated (31) and second seperated (32) is swollen section, and the crankshaft hole (33) is located at described simultaneously It on first seperated (31) and second seperated (32), is provided with the first pin hole (311) on first fission (31), described the The second pin hole (321) are provided on diad (32).

3. regulating element (3) according to claim 2, which is characterized in that the reduction groove includes: the first reduction groove (341) with the second reduction groove (342), the first reduction groove (341) setting is on described first seperated (31), and described the On described second seperated (32), first reduction groove (341) and second reduction are recessed for two reduction groove (342) settings Slot (342) is arranged around the crankshaft hole (33).

4. regulating element (3) according to claim 3, which is characterized in that it is described first reduction groove (341) with it is described swollen Minimum range, second reduction groove (342) between section and the minimum range between the swollen section are 2mm- 7mm。

5. regulating element (3) according to claim 2, which is characterized in that described first is seperated (31) and second point described Body (32) realizes by fastener and fixes that the fastener includes: the first bolt (351) and the second bolt (352), described first Bolt (351) and second bolt (352) are distributed in the two sides of the crankshaft hole (33), and first bolt (351) and The direction of second bolt (352) is opposite.

6. regulating element (3) according to claim 5, which is characterized in that be provided with first on described first seperated (31) Threaded hole (314) is provided with the second threaded hole on second seperated (32), and first bolt (351) passes through described first Bolt hole (313) is screwed in afterwards in second threaded hole, after second bolt (352) passes through second bolt hole (323) It screws in first threaded hole (314).

7. regulating element (3) according to claim 1, which is characterized in that the bigger diameter end of the pit (36) with it is corresponding Swollen section is concordant, and the miner diameter end of the pit (36) is parallel with bolt loading end, and the company between the both ends of the pit (36) Junction is arc surface.

8. regulating element (3) according to claim 1, which is characterized in that the outer surface of the regulating element (3) is blank The end face in face, the crankshaft hole (33) is provided with central boss (37), and the central boss (37) is higher than the blank where it The distance in face is 0.2mm-1mm.

9. regulating element (3) according to claim 2, which is characterized in that it is recessed to be provided with loss of weight on the regulating element (3) Slot, the lightening recesses include:

First lightening recesses (381), the first lightening recesses (381) setting is on described first seperated (31)；

Second lightening recesses (382), the second lightening recesses (382) setting is on described second seperated (32).

10. regulating element (3) according to claim 9, which is characterized in that the end face of first pin hole (311) is arranged Have first boss (312), one end of first lightening recesses (381) is connected with the first boss (312), and described first subtracts The other end of weight groove (381) is parallel with the swollen section.

11. regulating element (3) according to claim 9, which is characterized in that first lightening recesses (381) with it is described Minimum range between swollen section is 2mm-4mm, and the groove depth of first lightening recesses (381) is 2mm-3mm；

Minimum range between second lightening recesses (382) and the swollen section is 2mm-4mm, and second loss of weight is recessed The groove depth of slot (382) is 2mm-3mm.

12. regulating element (3) according to claim 2, which is characterized in that connecting rod is with the regulating element (3) described First pin hole is hinged and connected at (311), and control-rod is hinged and connected at second pin hole (321) with the regulating element (3), It being provided with the first escape groove (315) on described first seperated (31), first escape groove (315) is used to avoid the connecting rod, It is provided with the second escape groove (325) on described second seperated (32), second escape groove (325) is for avoiding the control Bar.

13. regulating element described in any one of -12 (3) according to claim 1, which is characterized in that the regulating element (3) is Power forging part.

14. a kind of engine, which is characterized in that including regulating element according to claim 1 to 13 (3).