Engine cylinder block and cylinder head support device and method

Abstract

The present invention relates to the field of engine support technology, and in particular to an engine cylinder block and cylinder head support device and method, comprising an engine and two chassis longitudinal beams, wherein the two ends of the engine are movably connected to the two chassis longitudinal beams through two vibration-damping support mechanisms; the vibration-damping support mechanism comprises two sleeves fixed on the upper sides of the two chassis longitudinal beams, and the interiors of the two sleeves are penetrated by sliding rods connected thereto, and the two ends of the two sliding rods are elastically connected to the engine through a suspension structure. The present invention can adjust the overlapping area of ​​the rotating ring oil hole and the slide plate oil hole in real time according to the amplitude of the engine through a linkage adjustment mechanism, thereby adjusting the cross-sectional area of ​​the slide plate oil hole in the vibration-damping support mechanism, thereby adjusting the damping size of the damping oil in real time, and when the amplitude of the engine becomes larger, it can provide a greater damping effect, thereby fully absorbing the vibration capacity of the engine, thereby better suppressing the vibration of the engine.

Description

Technical Field

[0001] The present invention relates to the technical field of engine support, and in particular to an engine cylinder block and cylinder head support device and method. Background Art

[0002] Large diesel engines are usually installed on heavy trucks. Diesel engines will produce vibrations of different amplitudes at different speeds and loads. In order to improve the running stability of the engine and reduce the transmission of vibration to the vehicle body, it is necessary to elastically connect the engine to the truck chassis. Currently, rubber sleeves are usually used to isolate the engine from the chassis.

[0003] After searching, the Chinese patent with publication number: CN218407608U discloses a universal engine rear support device, including a left rear mounting seat and a right rear mounting seat, the left rear mounting seat includes a shell connecting portion and a support seat connecting portion, the upper end of the shell connecting portion and the support seat connecting portion are connected through a spatial curved surface transition, the shell connecting portion is provided with a shell connecting hole, the support seat connecting portion is provided with a support seat connecting hole, the axis of the shell connecting hole is perpendicular to the axis of the support seat connecting hole, the center line of the support seat connecting portion is parallel to the center line of the shell connecting portion and offset to the right, and the right rear mounting seat and the left rear mounting seat are mirror-symmetrical structures.

[0004] A Chinese patent with publication number CN219345901U discloses a support body device and an engine foot mounting structure, comprising an upper support platform and a lower support platform, wherein an installation space for the rigid engine foot to be embedded is formed between the upper support platform and the lower support platform; the upper support platform is provided with a plurality of first mounting holes corresponding to the engine foot mounting holes of the rigid engine foot, the lower support platform is provided with second mounting holes corresponding one by one to each of the first mounting holes, the first mounting holes and the second mounting holes are used to cooperate with fasteners, and the support seat main mounting hole of the support seat device is used to cooperate with the elastic support device; the support screw plug device is threadedly connected to the first mounting hole, and is provided with a screw plug through hole for the fastener to pass through.

[0005] Based on the above search and combined with actual problems, it is found that the existing engine support device isolates the engine from the chassis through a rubber sleeve. Since the hardness of the rubber sleeve is limited and cannot be adjusted, different amplitudes of vibration will be generated at different engine speeds and different loads. Therefore, the vibration of the engine cannot be fully absorbed. Moreover, when the engine output shaft is subjected to the impact of reverse rotation torque, the engine will produce a large amplitude of rotation, thereby further reducing the stability of the engine. Summary of the invention

[0006] The object of the present invention is to provide an engine cylinder block and cylinder head supporting device and method to solve the problems raised in the above background technology.

[0007] The technical solution of the present invention is: an engine cylinder block and cylinder head supporting device, comprising an engine and two chassis longitudinal beams, wherein the two ends of the engine are movably connected to the two chassis longitudinal beams through two vibration-damping supporting mechanisms; the vibration-damping supporting mechanisms comprise two sleeves fixed on the upper sides of the two chassis longitudinal beams, the interiors of the two sleeves are penetrated by sliding rods that are slidably connected, the two ends of the two sliding rods are elastically connected to the engine through a suspension structure, and the outer middle sections of the two sliding rods are fixed with intermediate slides that are slidably connected to the inner sides of the sleeves, and the interiors of the two intermediate slides are provided with a plurality of slide oil holes, the inner lower ends of the two sleeves are fixed with lower retaining rings, the lower ends of the two intermediate slides are elastically connected to the two lower retaining rings through supporting springs, and linkage adjustment mechanisms for adjusting the cross-sectional areas of the multiple slide oil holes are respectively arranged between the two intermediate slides and the two sleeves; an anti-tilt mechanism is also arranged between the two sleeves.

[0008] Preferably, the linkage adjustment mechanism includes an annular groove provided on the outer side of the middle slide and a plurality of guide grooves provided on the inner wall of the sleeve, the inner side of the annular groove is rotatably connected to a rotating ring, the outer side of the rotating ring is rotatably connected to a sliding pin at a position corresponding to each guide groove, each sliding pin is movably matched with the inner side of the guide groove at a corresponding position, and a rotating ring oil hole is provided inside the rotating ring at a position corresponding to the oil hole of each slide plate.

[0009] Preferably, the guide groove includes an upper vertical groove, a spiral bevel groove, and a lower vertical groove opened on the inner wall of the sleeve, one end of the upper vertical groove and the lower vertical groove are smoothly connected to the two ends of the spiral bevel groove respectively, and the sliding pin is slidably connected to the inner side of the upper vertical groove, the spiral bevel groove, and the lower vertical groove.

[0010] Preferably, the anti-tilt mechanism comprises two lower slide plates and two upper slide plates slidably connected to the upper and lower ends of the inner sides of the two sleeves, two extension oil pipes connected to the lower ends of the two sleeves, and a plurality of second air holes opened at the upper ends of the two sleeves, the lower sides of the two upper slide plates are connected to return springs, the lower ends of the two return springs are fixedly connected to the inner sides of the two sleeves through upper retaining rings, the two upper slide plates are slidably sleeved on the outer sides of the two sliding rods, the two lower slide plates are respectively located on the lower sides of the two lower retaining rings, and the lower sides of the two lower slide plates are connected to the lower sides of the two lower retaining rings. The buffer spring is elastically connected to the inner lower end of the two sleeves respectively, the two lower slides are slidably mounted on the outer sides of the two slide bars respectively, and the upper ends of the two lower slides are fixed with bosses slidably mounted on the outer sides of the slide bars, and the upper ends of the two bosses are provided with buffer rubber rings, the two extended oil pipes are connected through a balancing cylinder, and the inner ends of the balancing cylinder are slidably connected to two balancing slides that can move in opposite directions at a constant speed through a reverse transmission structure, and the two extended oil pipes are provided with a damping adjustment mechanism that automatically adjusts the damping according to the flow rate of the damping oil.

[0011] Preferably, the reverse transmission structure includes a rotating shaft rotatably connected to the inner side of the balancing cylinder at the middle position, two connecting rods rotatably connected to one side of the two balancing slides, and a plurality of first air holes opened at the middle position of the balancing cylinder, and two steering rods are symmetrically fixed on both sides of the rotating shaft, and one end of the two steering rods is rotatably connected to one end of the two connecting rods respectively.

[0012] Preferably, the damping adjustment mechanism includes a shell connected to the extended oil pipe, the shell divides the extended oil pipe into a front section oil pipe and a rear section oil pipe, two third air holes are opened at both ends of the shell, and a movable valve core is slidably connected to the inner side of the shell, an oblique flow channel is opened inside the movable valve core, the front section oil pipe and the rear section oil pipe are staggeredly connected through the oblique flow channel, and the two ends of the movable valve core are elastically connected to the inner ends of the shell through two centering springs.

[0013] Preferably, the stiffness coefficients of the two buffer springs are greater than the stiffness coefficients of the two support springs.

[0014] Preferably, the suspension structure includes an external fixing rod fixed at both ends of the sliding rod and two fixing ears fixed on one side of the engine and located on both sides of the external fixing rod, a fixing pin penetrating through the inside of the external fixing rod is fixed between the two fixing ears, and the fixing pin is elastically connected to the external fixing rod via a rubber sleeve.

[0015] Preferably, the plurality of slide plate oil holes are arranged in a circular pattern inside the middle slide plate.

[0016] The present invention also provides an engine cylinder block and cylinder head supporting method, which specifically comprises the following steps:

[0017] Step 1: By means of the linkage adjustment mechanism, the overlapping area of ​​the rotating ring oil hole and the slide plate oil hole is adjusted in real time according to the amplitude of the engine, thereby adjusting the cross-sectional area of ​​the slide plate oil hole in the vibration reduction support mechanism, thereby adjusting the damping size of the damping oil in real time. When the amplitude of the engine becomes larger, a greater damping effect is provided, thereby fully absorbing the vibration capacity of the engine, thereby effectively suppressing the vibration of the engine. When the amplitude of the engine becomes smaller, only a smaller damping effect is required to suppress the vibration of the engine. The smaller damping reduces the transmission of the vibration of the engine to the chassis longitudinal beam;

[0018] Step 2, when the output shaft of the engine is impacted by the reverse rotation torque, the impact causes the engine to rotate more significantly, so that the middle slide plate on one side is pressed down by a larger stroke, and the middle slide plate on the other side is lifted up by a certain stroke, and the lower end of the pressed middle slide plate contacts the boss of the anti-tilt mechanism, and the impact force is transmitted to the lower slide plate through the boss, and when the lower slide plate is moved downward by the impact force, the space inside the sleeve will be increased, so that the outside air can enter the space inside the sleeve located above the upper slide plate through the multiple second air holes, and at the same time the return spring is compressed, and the upper slide plate can move downward, ensuring that the volume of the space inside the sleeve where the damping oil is installed remains unchanged, and when the lower slide plate moves downward, the damping oil in the space below it is pushed to the inside of the extended oil pipe, and the damping oil can also absorb the impact energy when flowing, thereby suppressing the rotation amplitude of the engine;

[0019] Step three, after being impacted, the lower slide plate moves downward, squeezing the damping oil at the lower end of the corresponding sleeve to the inner side of the extended oil pipe, and then flows into the inner end of the balancing cylinder, and the damping oil pushes the balancing slide plate to move toward the middle position of the balancing cylinder, and the balancing slide plate drives the other balancing slide plate to slide toward the middle position of the balancing cylinder through the reverse transmission structure, so that the two balancing slide plates move toward the middle position of the balancing cylinder synchronously, thereby drawing the damping oil at the lower end of the other sleeve into the other inner end of the balancing cylinder through the other extended oil pipe. When the damping oil at the lower end of the other sleeve is drawn away, the other upper slide plate moves downward quickly. When the other upper slide plate moves downward quickly, it will push the damping oil on the inner side of the other sleeve to quickly flow through multiple slide plate oil holes. While the damping oil flows, it will also exert downward pressure on the upper end of the other middle slide plate, thereby suppressing the lifting height of the other middle slide plate, thereby suppressing the lifting height of the other side of the engine.

[0020] The present invention provides an engine cylinder block and cylinder head supporting device and method by improvement, which has the following improvements and advantages compared with the prior art:

[0021] First, the present invention can adjust the overlapping area of ​​the rotating ring oil hole and the slide plate oil hole in real time according to the amplitude of the engine through the linkage adjustment mechanism, so as to adjust the cross-sectional area of ​​the slide plate oil hole in the vibration reduction support mechanism, so as to adjust the damping size of the damping oil in real time. When the amplitude of the engine becomes larger, a greater damping effect can be provided, thereby fully absorbing the vibration capacity of the engine, thereby better suppressing the vibration of the engine.

[0022] Secondly, the present invention uses an anti-tilt mechanism, which can reduce the downward travel of the middle slide plate on the downward pressure side and reduce the upward height of the middle slide plate on the lifting side when the output end of the engine is impacted by the reaction force, thereby further reducing the rotation amplitude of the engine and further improving the stability of the engine when impacted.

[0023] Thirdly, through the damping adjustment mechanism in the anti-tilt mechanism of the present invention, when the reverse impact force applied to the output end of the engine is large, the flow rate of the damping oil in the extended oil pipe will be accelerated. The accelerated flow rate of the damping oil will drive the movable valve core therein to shift, thereby reducing the overlapping area of ​​the oblique flow channel and the front and rear oil pipes, thereby increasing the resistance to the damping oil and improving the damping effect. The greater the impact force of the engine, the greater the damping produced by the damping oil in the extended oil pipe on the lower slide plate, thereby further suppressing the rotation amplitude of the engine. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0026] Figure 2 It is a structural schematic diagram of the vibration reduction support mechanism in the present invention;

[0027] Figure 3 It is a schematic diagram of the structure inside the sleeve in the present invention;

[0028] Figure 4 It is a schematic cross-sectional structural diagram of the middle slide plate in the present invention;

[0029] Figure 5 It is a schematic diagram of the front cross-sectional structure of the vibration reduction support mechanism in the present invention;

[0030] Figure 6 It is a schematic diagram of the disassembled structure of the sleeve in the present invention;

[0031] Figure 7 It is a schematic diagram of the structure inside the balancing cylinder of the present invention;

[0032] Figure 8 For the present invention Figure 7 A schematic diagram of the enlarged structure at A in the middle;

[0033] Fig. 9 It is a schematic cross-sectional structural diagram of the damping adjustment mechanism in the present invention.

[0034] Reference numerals:

[0035] 1. Engine; 2. Chassis longitudinal beam; 3. Sleeve; 4. Slide rod; 5. Middle slide plate; 6. Slide plate oil hole; 7. Lower retaining ring; 8. Support spring; 9. External fixing rod; 10. Fixing ear; 11. Fixing pin; 12. Rubber sleeve; 101. Annular groove; 102. Rotating ring; 103. Slide pin; 104. Guide groove; 105. Rotating ring oil hole; 1041. Upper vertical groove; 1042. Spiral inclined groove; 1043. Lower vertical groove; 201. Lower slide plate; 202. Buffer spring; 203 , boss; 204, buffer rubber ring; 205, extension oil pipe; 206, balance cylinder; 207, balance slide; 208, shaft; 209, steering rod; 210, connecting rod; 211, first air hole; 212, upper retaining ring; 213, upper slide; 214, return spring; 215, second air hole; 2051, front section oil pipe; 2052, rear section oil pipe; 301, shell; 302, movable valve core; 303, oblique flow channel; 304, centering spring; 305, third air hole. DETAILED DESCRIPTION

[0036] The present invention is described in detail below, and the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] The present invention provides an engine cylinder block and cylinder head supporting device and method through improvement. The technical solution of the present invention is:

[0038] Embodiment 1:

[0039] like Figures 1 to 9 As shown, an embodiment of the present invention provides an engine cylinder block and cylinder head supporting device, comprising an engine 1 and two chassis longitudinal beams 2, wherein two ends of the engine 1 are movably connected to the two chassis longitudinal beams 2 through two vibration reduction supporting mechanisms; the vibration reduction supporting mechanism comprises two sleeves 3 fixed on the upper sides of the two chassis longitudinal beams 2, the interiors of the two sleeves 3 are penetrated by sliding rods 4 for sliding connection, both ends of the two sliding rods 4 are elastically connected to the engine 1 through a suspension structure, and the middle sections of the outer sides of the two sliding rods 4 are fixed with intermediate slide plates 5 slidably connected to the inner sides of the sleeves 3, and the interiors of the two intermediate slide plates 5 are provided with a plurality of slide plate oil holes 6, and the plurality of slide plate oil holes 6 are arranged in a circular pattern inside the intermediate slide plates 5, lower retaining rings 7 are fixed to the inner lower ends of the two sleeves 3, the lower ends of the two intermediate slide plates 5 are elastically connected to the two lower retaining rings 7 respectively through supporting springs 8, and linkage adjustment mechanisms for adjusting the cross-sectional areas of the plurality of slide plate oil holes 6 are respectively arranged between the two intermediate slide plates 5 and the two sleeves 3; an anti-tilt mechanism is also arranged between the two sleeves 3.

[0040] Further, the linkage adjustment mechanism includes an annular groove 101 provided on the outer side of the middle slide plate 5 and a plurality of guide grooves 104 provided on the inner wall of the sleeve 3, a rotating ring 102 is rotatably connected to the inner side of the annular groove 101, a sliding pin 103 is rotatably connected to the outer side of the rotating ring 102 at a position corresponding to each guide groove 104, each sliding pin 103 is movably matched with the inner side of the guide groove 104 at a corresponding position, a rotating ring oil hole 105 is provided inside the rotating ring 102 at a position corresponding to each slide plate oil hole 6, the guide groove 104 includes an upper vertical groove 1041, a spiral bevel groove 1042, and a lower vertical groove 1043 provided on the inner wall of the sleeve 3, one end of the upper vertical groove 1041 and the lower vertical groove 1043 are respectively smoothly connected to the two ends of the spiral bevel groove 1042, and the sliding pin 103 is slidably connected to the inner side of the upper vertical groove 1041, the spiral bevel groove 1042, and the lower vertical groove 1043;

[0041] Through the linkage adjustment mechanism, the overlapping area of ​​the rotating ring oil hole 105 and the slide plate oil hole 6 can be adjusted in real time according to the amplitude of the engine 1, so that the cross-sectional area of ​​the slide plate oil hole 6 in the vibration reduction support mechanism can be adjusted, so that the damping size of the damping oil can be adjusted in real time. When the amplitude of the engine 1 becomes larger, a greater damping effect can be provided, thereby fully absorbing the vibration capacity of the engine 1, so that the vibration of the engine 1 can be better suppressed.

[0042] Furthermore, the anti-tilt mechanism includes two lower slide plates 201 and two upper slide plates 213 slidably connected to the upper and lower ends of the inner sides of the two sleeves 3, two extension oil pipes 205 connected to the lower ends of the two sleeves 3, and a plurality of second air holes 215 opened at the upper ends of the two sleeves 3. The lower sides of the two upper slide plates 213 are connected to return springs 214, and the lower ends of the two return springs 214 are respectively fixedly connected to the inner sides of the two sleeves 3 through upper retaining rings 212. The two upper slide plates 213 are respectively slidably sleeved on the outer sides of the two slide bars 4, and the two lower slide plates 201 are respectively located on the lower sides of the two lower retaining rings 7, and the lower sides of the two lower slide plates 201 are respectively connected to the two lower retaining rings 7 through buffer springs 202. The inner lower ends of the sleeves 3 are elastically connected, the two lower slide plates 201 are respectively slidably sleeved on the outer sides of the two slide bars 4, and the upper ends of the two lower slide plates 201 are fixed with bosses 203 slidably sleeved on the outer sides of the slide bars 4, and the upper ends of the two bosses 203 are provided with buffer rubber rings 204, the two extension oil pipes 205 are connected through a balance cylinder 206, and the inner ends of the balance cylinder 206 are slidably connected to two balancing slide plates 207 that can move in opposite directions at a constant speed through a reverse transmission structure, and the two extension oil pipes 205 are provided with a damping adjustment mechanism that automatically adjusts the damping according to the damping oil flow rate, and the stiffness coefficient of the two buffer springs 202 is greater than the stiffness coefficient of the two support springs 8;

[0043] By means of the anti-tilt mechanism, when the output shaft of the engine 1 is impacted by the reverse rotation torque, the impact force can be absorbed, thereby better suppressing the rotation amplitude of the engine 1 and improving the running stability of the engine 1.

[0044] Furthermore, the reverse transmission structure includes a rotating shaft 208 rotatably connected to the inner side of the balancing cylinder 206 at the middle position, two connecting rods 210 rotatably connected to one side of the two balancing slide plates 207, and a plurality of first air holes 211 opened at the middle position of the balancing cylinder 206. Two steering rods 209 are symmetrically fixed on both sides of the rotating shaft 208, and one end of the two steering rods 209 is rotatably connected to one end of the two connecting rods 210 respectively.

[0045] The reverse transmission structure causes the two balancing slides 207 in the anti-roll mechanism to move in opposite directions at a constant speed, so that the damping oil at the inner lower ends of the two sleeves 3 can be simultaneously sucked to the two ends of the balancing cylinder 206. After the damping oil in a sleeve 3 located on the lifting side is extracted, the damping oil inside it will exert downward pressure on the upper end of the middle slide 5 inside it, thereby effectively suppressing the lifting height of the other middle slide 5, thereby suppressing the lifting height of the other side of the engine 1.

[0046] Further, the damping adjustment mechanism includes a housing 301 connected to the extension oil pipe 205, the housing 301 divides the extension oil pipe 205 into a front section oil pipe 2051 and a rear section oil pipe 2052, two third air holes 305 are provided at both ends of the housing 301, and a movable valve core 302 is slidably connected to the inner side of the housing 301, an oblique flow channel 303 is provided inside the movable valve core 302, the front section oil pipe 2051 and the rear section oil pipe 2052 are staggeredly connected through the oblique flow channel 303, and the two ends of the movable valve core 302 are elastically connected to the inner ends of the housing 301 through two centering springs 304;

[0047] When the reverse impact force applied to the output end of the engine 1 is large, the flow rate of the damping oil in the extended oil pipe 205 will be accelerated. The accelerated flow rate of the damping oil will cause the movable valve core 302 therein to shift, thereby reducing the overlapping area of ​​the oblique flow channel 303 and the front section oil pipe 2051 and the rear section oil pipe 2052. Therefore, the resistance to the damping oil can be increased, thereby improving the damping effect. The greater the impact force of the engine 1, the greater the damping produced by the damping oil in the extended oil pipe 205 on the lower slide plate 201, thereby further suppressing the rotation amplitude of the engine 1.

[0048] Furthermore, the suspension structure includes an external fixing rod 9 fixed at both ends of the slide rod 4 and two fixing ears 10 fixed on one side of the engine 1 and located on both sides of the external fixing rod 9. A fixing pin 11 penetrating the interior of the external fixing rod 9 is fixed between the two fixing ears 10. The fixing pin 11 is elastically connected to the external fixing rod 9 via a rubber sleeve 12.

[0049] The engine 1 can be elastically connected to the two chassis longitudinal beams 2 through the suspension structure, which can be used to reduce small-amplitude vibrations of the engine 1 .

[0050] Embodiment 2:

[0051] This embodiment also provides an engine cylinder block and cylinder head supporting method, which specifically includes the following steps:

[0052] Step 1: By means of the linkage adjustment mechanism, the overlapping area of ​​the rotating ring oil hole 105 and the slide plate oil hole 6 is adjusted in real time according to the amplitude of the engine 1, thereby adjusting the cross-sectional area of ​​the slide plate oil hole 6 in the vibration reduction support mechanism, thereby adjusting the damping size of the damping oil in real time. When the amplitude of the engine 1 becomes larger, a greater damping effect is provided, thereby fully absorbing the vibration capacity of the engine 1, thereby effectively suppressing the vibration of the engine 1. When the amplitude of the engine 1 becomes smaller, only a smaller damping effect is required to suppress the vibration of the engine 1. The smaller damping reduces the transmission of the vibration of the engine 1 to the chassis longitudinal beam 2;

[0053] Step 2, when the output shaft of the engine 1 is impacted by the reverse rotation torque, the impact causes the engine 1 to rotate more significantly, so that the middle slide plate 5 on one side is pressed down by a larger stroke, and the middle slide plate 5 on the other side is lifted up by a certain stroke, and the lower end of the pressed middle slide plate 5 contacts the boss 203 of the anti-tilt mechanism, and the impact force is transmitted to the lower slide plate 201 through the boss 203. When the lower slide plate 201 is impacted and moves downward, the space inside the sleeve 3 is increased, so that the outside air can enter the space above the upper slide plate 213 inside the sleeve 3 through the multiple second air holes 215. At the same time, the return spring 214 is compressed, and the upper slide plate 213 can move downward to ensure that the volume of the space inside the sleeve 3 where the damping oil is installed remains unchanged. When the lower slide plate 201 moves downward, the damping oil in the space below it is pushed to the inside of the extension oil pipe 205. The damping oil can also absorb the impact energy when flowing, thereby suppressing the rotation amplitude of the engine 1.

[0054] Step 3: After being impacted, the lower slide plate 201 moves downward, squeezing the damping oil at the lower end of the corresponding sleeve 3 to the inner side of the extension oil pipe 205, and then flows into the inner end of the balancing cylinder 206. The damping oil pushes the balancing slide plate 207 to move toward the middle position of the balancing cylinder 206. The balancing slide plate 207 drives the other balancing slide plate 207 to slide toward the middle position of the balancing cylinder 206 through the reverse transmission structure, so that the two balancing slide plates 207 move synchronously toward the middle position of the balancing cylinder 206, thereby pushing the other sleeve 3 down. The damping oil at one end is drawn into the other inner end of the balance cylinder 206 through another extended oil pipe 205. When the damping oil at the lower end of the other sleeve 3 is drawn away, the other upper slide plate 213 moves downward rapidly. When the other upper slide plate 213 moves downward rapidly, it will push the damping oil on the inner side of the other sleeve 3 to quickly flow through multiple slide plate oil holes 6. While the damping oil flows, it will also apply downward pressure to the upper end of the other middle slide plate 5, thereby suppressing the lifting height of the other middle slide plate 5, thereby suppressing the lifting height of the other side of the engine 1.

[0055] Working principle: The weight of the engine 1 is transferred to the fixing pin 11 through the two fixing ears 10 of the suspension structure, and the fixing pin 11 is transferred to the outer fixing rod 9 through the rubber sleeve 12. The outer fixing rod 9 then transfers the weight to the slide bar 4 of the vibration reduction support mechanism, and the slide bar 4 then transfers the weight to the middle slide plate 5. The middle slide plate 5 moves toward the lower end of the sleeve 3 under the action of gravity and compresses the support spring 8. When the engine 1 is running, vibration will be generated. After the vibration is transmitted to the middle slide plate 5, it will drive the middle slide plate 5 to vibrate up and down, thereby driving the support spring 8 to continuously reciprocate and expand;

[0056] The insides of the two sleeves 3 and the two extended oil pipes 205 are filled with damping oil. When the middle slide plate 5 vibrates up and down, the damping oil inside the sleeve 3 will quickly reciprocate inside the multiple slide plate oil holes 6. When the damping oil flows through the slide plate oil holes 6, it will encounter resistance. When the damping oil encounters resistance, its flow speed will slow down and its kinetic energy will be converted into heat energy, thereby playing a role in decelerating the middle slide plate 5, thereby playing a role in vibration reduction, which can reduce the vibration intensity of the middle slide plate 5 and the slide bar 4, and improve the running stability of the engine 1;

[0057] When the middle slide plate 5 vibrates up and down, it will drive the rotating ring 102 of the linkage adjustment mechanism to vibrate synchronously. The rotating ring 102 drives the multiple sliding pins 103 on its outer side to vibrate synchronously. Each sliding pin 103 can slide up and down along the inner side of the spiral bevel groove 1042 at the corresponding position. When the engine 1 stops running, the sliding pin 103 can be located in the middle section of the spiral bevel groove 1042. When the vibration of the engine 1 is transmitted to the middle slide plate 5, the middle slide plate 5 drives the multiple sliding pins 103 to slide up and down on the inner side of the spiral bevel groove 1042 at the corresponding position. Under the guidance of the spiral bevel groove 1042, when the middle slide plate 5 drives the sliding pins 103 to vibrate up and down, it can also drive the rotating ring 102 to rotate forward and reversely. The rotating ring 102 drives the multiple rotating ring oil holes 105 inside it to rotate forward and reversely. The forward and reverse rotation of the multiple rotating ring oil holes 105 will change the overlapping area between them and the slide plate oil holes 6 at the corresponding positions. When the amplitude of the engine 1 is large, the amplitude of the middle slide plate 5 and the rotating ring 102 becomes larger. As the rotation angle of the rotating ring 102 increases, the overlapping areas between the multiple rotating ring oil holes 105 and the slide plate oil holes 6 at the corresponding positions are reduced, thereby increasing the resistance of the damping oil when it flows through the slide plate oil holes 6. Therefore, more kinetic energy of the damping oil can be converted into heat energy, thereby improving the vibration reduction effect, thereby being able to well suppress the amplitude of the engine 1. Through the linkage adjustment mechanism, the overlapping area between the rotating ring oil holes 105 and the slide plate oil holes 6 can be adjusted in real time according to the amplitude of the engine 1, thereby being able to adjust the cross-sectional area of ​​the slide plate oil holes 6 in the vibration reduction support mechanism, thereby being able to adjust the damping size of the damping oil in real time. When the amplitude of the engine 1 increases, a greater damping effect can be provided, thereby fully absorbing the vibration capacity of the engine 1, thereby being able to better suppress the vibration of the engine 1. When the amplitude of the engine 1 decreases, only a smaller damping effect needs to be provided to suppress the vibration of the engine 1. The smaller damping can reduce the transmission of the vibration of the engine 1 to the chassis longitudinal beam 2, thereby further improving the stability of the engine 1 during operation.

[0058] When the output shaft of the engine 1 is subjected to a large reverse torsional torque, such as when the gearbox connected to it is shifting gears, the output shaft of the engine 1 will be impacted because the speed of the engine 1 does not match the speed of the output end of the gearbox. The impact will cause the engine 1 to rotate more significantly, thereby causing the middle slide plate 5 on one side to be pressed down by a larger stroke, and the middle slide plate 5 on the other side to be lifted up by a certain stroke. The lower end of the pressed middle slide plate 5 contacts the boss 203 of the anti-tilt mechanism, and the impact force is transmitted to the lower slide plate 201 through the boss 203. The lower end of the lower slide plate 201 is elastically connected to the lower end of the sleeve 3 through the buffer spring 202. The buffer spring 202 has a larger stiffness coefficient, so it can provide better buffering for larger impacts. The impact effect can effectively prevent the impact force of the engine 1 from being transmitted to the chassis longitudinal beam 2, and at the same time, it can prevent the hard collision between the middle slide plate 5 and the sleeve 3, protecting the vibration reduction support mechanism from damage. When the lower slide plate 201 is moved downward by the impact force, the space inside the sleeve 3 will be increased, so that the outside air can enter the space above the upper slide plate 213 inside the sleeve 3 through the multiple second air holes 215. At the same time, the return spring 214 is compressed, and the upper slide plate 213 can move downward to ensure that the volume of the space inside the sleeve 3 where the damping oil is installed remains unchanged. When the lower slide plate 201 moves downward, the damping oil in the space below it is pushed to the inside of the extension oil pipe 205. The damping oil can also absorb the impact energy when it flows, thereby suppressing the rotation amplitude of the engine 1.

[0059] The damping oil passes through the inner side of the oblique flow channel 303 of the damping adjustment mechanism. Since the oblique flow channel 303 is set obliquely, when the flow rate of the damping oil inside the oblique flow channel 303 is greater, the impact force of the damping oil on the inner wall of the oblique flow channel 303 is greater, so the impact force component along the axial direction of the movable valve core 302 received by the oblique flow channel 303 is also greater. This component will drive the movable valve core 302 to move toward one end along the inner side of the shell 301 and compress one of the centering springs 304, thereby reducing the overlapping area of ​​the oblique flow channel 303 and the front section oil pipe 2051 and the rear section oil pipe 2052, so that the resistance to the damping oil can be increased, thereby improving the damping effect. When the impact force of the engine 1 is greater, the damping generated by the damping oil in the extension oil pipe 205 on the lower slide plate 201 is greater, thereby further suppressing the rotation amplitude of the engine 1;

[0060] When the damping oil inside the extended oil pipe 205 flows through the damping adjustment mechanism, it will flow into the inner end of the balancing cylinder 206, and the damping oil pushes the balancing slide plate 207 to move toward the middle position of the balancing cylinder 206. The balancing slide plate 207 pushes one of the steering rods 209 through a connecting rod 210 at one end thereof, and the steering rod 209 drives the rotating shaft 208 to rotate, and the rotating shaft 208 drives the other steering rod 209 to rotate, and the other steering rod 209 drives another balancing slide plate 207 to slide toward the middle position of the balancing cylinder 206 through another connecting rod 210. Therefore, the two balancing slide plates 207 can be moved synchronously to the middle position of the balancing cylinder 206, so that the damping oil at the lower end of the other sleeve 3 can be pumped into the other inner end of the balancing cylinder 206 through another extended oil pipe 205. When the damping oil at the lower end of the other sleeve 3 is pumped away , the other lower slide plate 201 will move downward to compress the other buffer spring 202, so the space inside the other sleeve 3 will also increase. Through the above principle, outside air enters the inner side of the other sleeve 3 through the second air hole 215 and is located above the other upper slide plate 213, so that the other upper slide plate 213 moves downward quickly and compresses the other return spring 214. When the other upper slide plate 213 moves downward quickly, it will push the damping oil on the inside of the other sleeve 3 to quickly flow through the multiple slide plate oil holes 6. While the damping oil flows, it will also apply downward pressure on the upper end of the other middle slide plate 5, so that the lifting height of the other middle slide plate 5 can be well suppressed, thereby suppressing the lifting height of the other side of the engine 1, thereby further reducing the rotation amplitude of the engine 1, and further improving the stability of the engine 1 when it is impacted.

[0061] The above description enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An engine cylinder block and cylinder head support device, comprising an engine (1) and two chassis longitudinal beams (2), characterized in that: The two ends of the engine (1) are movably connected to two chassis longitudinal beams (2) via two vibration reduction support mechanisms; The vibration reduction support mechanism comprises two sleeves (3) fixed on the upper sides of the two chassis longitudinal beams (2), the interiors of the two sleeves (3) are penetrated by sliding rods (4) for sliding connection, the two ends of the two sliding rods (4) are elastically connected to the engine (1) through a suspension structure, and the middle sections of the outer sides of the two sliding rods (4) are fixed with intermediate slides (5) slidably connected to the inner sides of the sleeves (3), and the interiors of the two intermediate slides (5) are provided with a plurality of slide oil holes (6), the inner lower ends of the two sleeves (3) are fixed with lower retaining rings (7), the lower ends of the two intermediate slides (5) are elastically connected to the two lower retaining rings (7) respectively through support springs (8), and linkage adjustment mechanisms for adjusting the cross-sectional areas of the plurality of slide oil holes (6) are respectively provided between the two intermediate slides (5) and the two sleeves (3); An anti-tilt mechanism is also provided between the two sleeves (3).

2. The engine cylinder block and cylinder head support device according to claim 1, characterized in that: The linkage adjustment mechanism comprises an annular groove (101) provided on the outer side of the middle slide plate (5) and a plurality of guide grooves (104) provided on the inner wall of the sleeve (3); a rotating ring (102) is rotatably connected to the inner side of the annular groove (101); a sliding pin (103) is rotatably connected to the outer side of the rotating ring (102) at a position corresponding to each guide groove (104); each sliding pin (103) is movably matched with the inner side of the guide groove (104) at a corresponding position; and a rotating ring oil hole (105) is provided inside the rotating ring (102) at a position corresponding to each slide plate oil hole (6).

3. The engine cylinder block and cylinder head support device according to claim 2, characterized in that: The guide groove (104) comprises an upper vertical groove (1041), a spiral inclined groove (1042), and a lower vertical groove (1043) which are formed on the inner wall of the sleeve (3); one end of the upper vertical groove (1041) and the lower vertical groove (1043) are respectively smoothly connected to the two ends of the spiral inclined groove (1042); and the sliding pin (103) is slidably connected to the inner sides of the upper vertical groove (1041), the spiral inclined groove (1042), and the lower vertical groove (1043).

4. The engine cylinder block and cylinder head support device according to claim 1, characterized in that: The anti-tilt mechanism comprises two lower slide plates (201) and two upper slide plates (213) slidably connected to the upper and lower ends of the inner sides of the two sleeves (3), two extended oil pipes (205) connected to the lower ends of the two sleeves (3), and a plurality of second air holes (215) provided at the upper ends of the two sleeves (3). The lower sides of the two upper slide plates (213) are connected to return springs (214), and the lower ends of the two return springs (214) are respectively fixedly connected to the inner sides of the two sleeves (3) through upper retaining rings (212). The two upper slide plates (213) are respectively slidably sleeved on the outer sides of the two sliding rods (4). The two lower slide plates (201) are respectively located at the lower sides of the two lower retaining rings (7), and the lower ends of the two lower slide plates (201) are respectively connected to the lower sides of the two lower retaining rings (7). The two sides are elastically connected to the inner lower ends of the two sleeves (3) respectively through buffer springs (202), the two lower slide plates (201) are slidably sleeved on the outer sides of the two slide bars (4), and the upper ends of the two lower slide plates (201) are fixed with bosses (203) slidably sleeved on the outer sides of the slide bars (4), and the upper ends of the two bosses (203) are provided with buffer rubber rings (204). The two extended oil pipes (205) are connected through a balance cylinder (206), and the inner ends of the balance cylinder (206) are slidably connected with two balance slide plates (207) that can move in opposite directions at a constant speed through a reverse transmission structure. The two extended oil pipes (205) are provided with a damping adjustment mechanism that automatically adjusts the damping according to the flow rate of the damping oil.

5. The engine cylinder block and cylinder head supporting device according to claim 4, characterized in that: The reverse transmission structure comprises a rotating shaft (208) rotatably connected to the inner side of the balancing cylinder (206) at a middle position, two connecting rods (210) rotatably connected to one side of two balancing slide plates (207), and a plurality of first air holes (211) provided at a middle position of the balancing cylinder (206); two steering rods (209) are symmetrically fixed on both sides of the rotating shaft (208); one end of the two steering rods (209) is rotatably connected to one end of the two connecting rods (210) respectively.

6. The engine cylinder block and cylinder head support device according to claim 4, characterized in that: The damping adjustment mechanism comprises a shell (301) connected to and arranged on the extension oil pipe (205), wherein the shell (301) divides the extension oil pipe (205) into a front section oil pipe (2051) and a rear section oil pipe (2052), two third air holes (305) are provided at both ends of the shell (301), and a movable valve core (302) is slidably connected to the inner side of the shell (301), and an oblique flow channel (303) arranged obliquely is provided inside the movable valve core (302), the front section oil pipe (2051) and the rear section oil pipe (2052) are staggeredly connected via the oblique flow channel (303), and the two ends of the movable valve core (302) are elastically connected to the inner ends of the shell (301) via two centering springs (304).

7. The engine cylinder block and cylinder head supporting device according to claim 4, characterized in that: The stiffness coefficients of the two buffer springs (202) are greater than the stiffness coefficients of the two support springs (8).

8. The engine cylinder block and cylinder head supporting device according to claim 1, characterized in that: The suspension structure comprises an external fixing rod (9) fixed at both ends of the sliding rod (4) and two fixing ears (10) fixed at one side of the engine (1) and located on both sides of the external fixing rod (9); a fixing pin (11) penetrating the interior of the external fixing rod (9) is fixed between the two fixing ears (10); and the fixing pin (11) and the external fixing rod (9) are elastically connected via a rubber sleeve (12).

9. The engine cylinder block and cylinder head supporting device according to claim 1, characterized in that: The plurality of slide plate oil holes (6) are arranged in a circumferential manner inside the middle slide plate (5).

10. A method for supporting an engine cylinder block and cylinder head, according to an engine cylinder block and cylinder head supporting device according to any one of claims 1 to 9, characterized in that: The following steps are involved: Step 1: adjusting the overlap area of ​​the rotating ring oil hole (105) and the slide plate oil hole (6) in real time according to the amplitude of the engine (1) through the linkage adjustment mechanism, thereby adjusting the cross-sectional area of ​​the slide plate oil hole (6) in the vibration reduction support mechanism, thereby adjusting the damping size of the damping oil in real time, and providing a greater damping effect when the amplitude of the engine (1) increases, thereby fully absorbing the vibration capacity of the engine (1), thereby effectively suppressing the vibration of the engine (1); Step 2: When the output shaft of the engine (1) is impacted by a reverse rotation torque, the impact causes the engine (1) to rotate more significantly, thereby causing the middle slide plate (5) on one side to be pressed downward by a greater stroke, while the middle slide plate (5) on the other side is lifted upward by a certain stroke, and the lower end of the middle slide plate (5) pressed downward contacts the boss (203) of the anti-tilt mechanism, and the impact force is transmitted to the lower slide plate (201) through the boss (203). When the lower slide plate (201) is impacted and moves downward, the damping oil in the space below the lower slide plate (201) is pushed toward the inner side of the extension oil pipe (205) when the lower slide plate (201) moves downward, and the damping oil absorbs the impact energy when flowing, thereby further suppressing the rotation amplitude of the engine (1); Step 3: After being impacted, the lower slide plate (201) moves downward, squeezing the damping oil at the lower end of the corresponding sleeve (3) to the inner side of the extension oil pipe (205), and then flows into the inner end of the balancing cylinder (206). The damping oil pushes the balancing slide plate (207) to move toward the middle section of the balancing cylinder (206). The balancing slide plate (207) drives the other balancing slide plate (207) to slide toward the middle section of the balancing cylinder (206) through the reverse transmission structure, thereby pushing the other sleeve (3) downward. The damping oil at one end is drawn into the other end of the inner side of the balance cylinder (206) through another extended oil pipe (205). When the damping oil at the lower end of the other sleeve (3) is drawn away, the other upper slide plate (213) moves downward rapidly to push the damping oil inside the other sleeve (3) to flow rapidly through the multiple slide plate oil holes (6), and at the same time, exerts downward pressure on the other middle slide plate (5), thereby suppressing the lifting height of the other middle slide plate (5), thereby suppressing the lifting height of the other side of the engine (1).

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