Diesel engine suspension supporting structure

Abstract

The invention relates to the technical field of suspension supporting, and particularly discloses a diesel engine suspension supporting structure which comprises a metal framework, a mounting seat and a buffering cushion, the mounting seat is arranged on the metal framework and used for fixing an engine, the buffering cushion is arranged between the mounting seat and the metal framework, and the buffering cushion is arranged between the mounting seat and the metal framework. The buffer pad is rotatably matched with the metal framework and the mounting seat, a rotating mechanism is arranged in the metal framework, and the mounting seat can drive the rotating mechanism to operate when vibrating up and down, so that the rotating mechanism can drive the buffer pad to rotate relative to the mounting seat and the metal framework; according to the diesel engine suspension supporting structure, the mounting base and the engine rotate synchronously, and the mounting base can push the buffer cushion to rotate through the rotating mechanism when vibrating, so that the stress position of the buffer cushion is changed, and the service life of the buffer cushion is prolonged.

Description

Technical Field

[0001] The invention relates to the technical field of suspension support, and in particular to a diesel engine suspension support structure. Background Art

[0002] The suspension system is an important component of a car. Its main functions include supporting the engine, isolating and reducing noise, and providing buffering protection. Supporting the engine is to firmly mount the engine on structures such as the frame or body, ensuring that the engine maintains the correct position during vehicle driving and will not shift or shake due to vibration, acceleration, deceleration and other forces, ensuring the relative position relationship between the engine and other components, and enabling the entire power system to work normally. Isolating and reducing noise is to effectively isolate the transmission of vibration and noise generated by the engine during operation to the body and other components, reducing the impact of vibration and noise on the comfort of drivers and passengers in the car, and improving the quietness of the car. Buffering protection is to buffer the impact force on the engine under various working conditions such as uneven road surface, sudden acceleration, sudden braking, etc. during vehicle driving, protecting the engine and related components from excessive stress and impact damage, and extending the service life of the engine and the entire vehicle.

[0003] A Chinese patent document with authorization announcement number CN111959257B discloses an engine suspension support structure, which includes: a suspension cushion, a cushion upper cover, a cushion lower support and a lower support mounting plate, the suspension cushion includes: a metal frame, the metal frame includes a cylindrical body and a limit rib for limiting the axial displacement of the suspension leg; natural rubber, vulcanized and covered on the outer cylindrical surface of the cylindrical body and the outer surface of the limit rib, the cushion upper cover, the cushion lower support and the lower support mounting plate are all provided with bolt holes for inserting bolts, wherein the inner diameter of the bolt hole of the lower support mounting plate is larger than the inner diameter of the bolt hole of the cushion lower support, and an installation gap elimination mechanism is provided on the lower support mounting plate and the bolts.

[0004] The above-mentioned suspension support structure realizes axial positioning through the limiting retaining edge and natural rubber. Under the requirement of ensuring the six degrees of freedom of the engine, it can minimize the pulling effect of the lateral tension of the belt on the engine, reduce the engine deviation, and prevent the axial displacement of the suspension leg. At the same time, the installation gap elimination mechanism can eliminate the installation gap reserved for installing the engine, thereby reducing the engine deviation caused by the installation gap, and thus avoiding the single belt overload, eccentric wear, belt jumping and other phenomena caused by uneven belt force due to engine deviation. However, after long-term use, the pressure position of the suspension pad is prone to aging, resulting in reduced elasticity and loss of shock absorption effect. Replacing the suspension pad requires removing the engine, and the replacement process is complicated and cumbersome. In addition, it is difficult for the replaced suspension support to maintain the original shock absorption performance. At the same time, other non-pressure positions of the original suspension pad can still be used normally. Therefore, a new type of suspension support structure is needed, which can change the pressure position of the suspension pad during use, thereby improving the service life of the suspension pad. Summary of the invention

[0005] The present invention provides a diesel engine suspension support structure, aiming to solve the problem in the related art that the suspension cushion is prone to aging after long-term use, resulting in reduced elasticity and loss of shock absorption effect.

[0006] The diesel engine suspension support structure of the present invention comprises: a metal frame, a mounting seat and a buffer pad; The mounting seat is arranged on the metal frame, the mounting seat is used to fix the engine, and the buffer pad is arranged between the mounting seat and the metal frame; The buffer pad is rotationally matched with the metal frame and the mounting seat respectively. A rotating mechanism is provided in the metal frame. The mounting seat can drive the rotating mechanism to operate when vibrating up and down, so that the rotating mechanism can drive the buffer pad to rotate relative to the mounting seat and the metal frame.

[0007] Beneficial effects: The two suspension support structures are respectively located on both sides of the engine, and the two mounting seats are located at the bottom of the engine, thereby supporting the engine so that the engine is suspended in the frame, the metal frame is supported on the frame, and the buffer pad is located between the mounting seat and the corresponding metal frame. When the engine is running or the car brakes suddenly, vibration will be generated between the engine and the metal frame, and when vibrating, the mounting seat and the engine vibrate synchronously. The mounting seat will squeeze the buffer pad when vibrating, and the buffer pad will be deformed under pressure. The buffer pad is used to prevent the mounting seat from transmitting the vibration to the metal frame, thereby preventing the frame from vibrating. While vibrating, the mounting seat will drive the rotating mechanism to operate, and the rotating mechanism can drive the buffer pad to rotate relative to the metal frame and the mounting seat. The buffer pad is rotated to continuously change the compressed position of the buffer pad, thereby achieving uniform compression of the buffer pad, preventing the local area of ​​the buffer pad from aging due to long-term compression and then losing its elasticity. The diesel engine suspension support structure of the present invention can increase the service life of the buffer pad.

[0008] Preferably, the rotating mechanism includes a pressure plate, a driving plate and a gear set, the pressure plate is slidably fitted on the metal frame and elastically connected to the metal frame through a first elastic member, the pressure plate is abutted against the mounting seat, the driving plate is slidably fitted on the pressure plate and elastically connected to the pressure plate through a second elastic member, a one-way tooth groove is provided on the driving plate, the driving plate is unidirectionally meshed with the gear set, and the rotation of the gear set can drive the buffer pad to rotate.

[0009] The effect is that when the mounting seat vibrates, the mounting seat can move up and down reciprocatingly. When the mounting seat moves downward, the mounting seat can push the pressure plate to overcome the elastic force of the first elastic member and move downward. The pressure plate drives the driving plate to move downward, and the driving plate drives the gear set to rotate, thereby driving the buffer pad to rotate. When the mounting seat moves upward, the first elastic member stretches and pushes the pressure plate to move upward. The driving plate and the pressure plate move upward synchronously. Since the driving plate and the gear set are in one-way meshing, the gear set does not rotate when the driving plate moves upward.

[0010] Preferably, the gear group includes a first gear, a second gear, a third gear, a fourth gear and a fifth gear, the first gear and the third gear are both rotatably engaged on the metal frame, the first gear is a one-way gear, which is unidirectionally meshed with the drive plate, the second gear is arranged on the first gear, the second gear is meshed with the third gear, the fourth gear is fixedly set on the third gear, the fifth gear is fixedly set on the buffer pad, and the fourth gear is meshed with the fifth gear.

[0011] Preferably, the fourth gear is an incomplete gear.

[0012] The effect is that the fourth gear is an incomplete gear, and the fourth gear rotates multiple times to drive the fifth gear to rotate one circle, thereby reducing the rotation speed of the fifth gear and preventing the buffer pad from rotating too fast.

[0013] Preferably, the first gear is rotatably connected to the metal frame via a rotating shaft, a torsion spring is provided between the first gear and the rotating shaft, and the second gear is fixedly connected to the rotating shaft.

[0014] The effect is that due to the large mass of the engine, the engine is supported on the mounting seat, and the mounting seat applies pressure to the buffer pad, resulting in a large resistance to the buffer pad when it rotates. Each time the mounting seat moves downward, it can drive the first gear to rotate to store force in the torsion spring. When the torsion spring stores force to the point where its elastic force is greater than the resistance to the rotation of the buffer pad, the torsion spring can drive the rotating shaft to rotate, the rotating shaft can drive the second gear to rotate, the second gear drives the third gear to rotate, the fourth gear rotates synchronously with the third gear, the fourth gear drives the fifth gear to rotate, and the fifth gear drives the buffer pad to overcome the resistance it encounters and rotate.

[0015] Preferably, a limiting plate is provided on the metal frame, and the limiting plate is an elastic structure. The limiting plate abuts against the first gear, so as to limit the first gear in one direction.

[0016] The effect is that when the drive plate moves upward, the limit plate abuts against the first gear, thereby limiting the rotation of the first gear and preventing the first gear from reversing under the elastic force of the torsion spring when the drive plate moves upward, thereby ensuring that the pressure plate can continuously store force in the torsion spring when it moves back and forth up and down.

[0017] Preferably, a limiting rod is further provided on the metal frame, and the limiting rod is vertically distributed. A limiting sleeve is provided on the mounting seat, and the limiting sleeve is slidably matched with the limiting rod.

[0018] The effect is that the limit rod is vertically distributed on the metal frame, and its two ends are respectively fixedly connected to the metal frame, and the limit sleeve is slidably fitted on the mounting seat. When the mounting seat vibrates, the limit rod can limit the mounting seat through the limit sleeve, so that the mounting seat can only vibrate along the radial direction of the buffer pad, and can also prevent the mounting seat from separating from the metal frame.

[0019] Preferably, a support rod is also provided on the metal frame, and the support rod and the mounting seat are respectively arranged on both sides of the metal frame. The end of the support rod is in a hook shape, and the support rod can be clamped with the frame through the hook structure at its end, thereby preventing the metal frame from tilting.

[0020] The effect is that the support rod and the mounting seat are respectively located on both sides of the metal frame. When the mounting seat is loaded with an engine, the engine applies downward pressure to the mounting seat. Since the force point of the mounting seat is on the outside of the metal frame, the mounting seat applies an inclined downward pressure on the metal frame, and is hung on the frame through the support rod, thereby sharing the tension on the metal frame and preventing the metal frame from tilting.

[0021] Preferably, the metal skeleton is a truncated cone-shaped structure having a large diameter end and a small diameter end, and the large diameter end of the metal skeleton abuts against the vehicle frame.

[0022] Preferably, the metal skeleton is provided with reinforcing ribs, and the reinforcing ribs are used to improve the structural strength of the metal skeleton.

[0023] By adopting the above technical solution, the beneficial effects of the present invention are: The two diesel engine suspension support structures of the present invention are respectively located on both sides of the engine, and the two mounting seats are located at the bottom of the engine, thereby supporting the engine so that the engine is suspended in the frame, the metal frame is supported on the frame, and the buffer pad is located between the mounting seat and the corresponding metal frame. When the engine is running or the vehicle brakes suddenly, vibration will be generated between the engine and the metal frame, and when vibrating, the mounting seat and the engine vibrate synchronously. The mounting seat will squeeze the buffer pad when vibrating, and the buffer pad will be deformed under pressure. The buffer pad is used to prevent the mounting seat from transmitting the vibration to the metal frame, thereby preventing the frame from vibrating. While vibrating, the mounting seat will drive the rotating mechanism to operate, and the rotating mechanism can drive the buffer pad to rotate relative to the metal frame and the mounting seat. The buffer pad is rotated to continuously change the compressed position of the buffer pad, thereby achieving uniform compression of the buffer pad, preventing the local area of ​​the buffer pad from aging and losing its elasticity due to long-term compression. The diesel engine suspension support structure of the present invention can increase the service life of the buffer pad. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of a diesel engine suspension support structure according to an embodiment of the present invention.

[0025] Figure 2 It is a schematic diagram of the structure of the metal skeleton of an embodiment of the present invention.

[0026] Figure 3 2 is a top view of a mounting base according to an embodiment of the present invention.

[0027] Figure 4 4 is a front view of a cushion according to an embodiment of the present invention.

[0028] Figure 5 It is a schematic diagram of the structure of the limiting sleeve according to an embodiment of the present invention.

[0029] Figure 6It is a schematic diagram of the internal structure of the metal skeleton of an embodiment of the present invention.

[0030] Figure 7 2. It is a front view of a pressing plate according to an embodiment of the present invention.

[0031] Figure 8 2 is a back view of the first gear and the second gear according to the embodiment of the present invention.

[0032] Fig. 9 2 is a side view of a first gear and a second gear according to an embodiment of the present invention.

[0033] Fig.10 4 is a cross-sectional view of a first gear according to an embodiment of the present invention.

[0034] Fig.11 Schematic diagram of the structure of the third gear and the fourth gear in an embodiment of the present invention.

[0035] Reference numerals: 1. Metal skeleton; 101. First mounting hole; 102. Reinforcing rib; 2. Mounting seat; 21. Second mounting hole; 3. Buffer pad; 4. Limit rod; 41. Limit sleeve; 42. Matching rod; 5. Rotating mechanism; 51. Pressing plate; 511. First elastic member; 512. Mounting plate; 52. Driving plate; 521. Second elastic member; 531. First gear; 532. Second gear; 533. Third gear; 534. Fourth gear; 5341. First tooth; 5342. Second tooth; 535. Fifth gear; 6. Rotating shaft; 7. Torsion spring; 8. Limiting plate; 9. Support rod. DETAILED DESCRIPTION

[0036] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0037] like Figures 1 to 11 As shown, the diesel engine suspension support structure of the present invention includes: a metal frame 1, a mounting seat 2 and a buffer pad 3, the mounting seat 2 is used to fix the engine, the metal frame 1 is used to support the mounting seat 2 and the engine, the buffer pad 3 is arranged between the metal frame 1 and the mounting seat 2, when the engine vibrates, the mounting seat 2 vibrates synchronously with the engine, and the buffer pad 3 is used to buffer the vibration to prevent the mounting seat 2 from transmitting the vibration to the metal frame 1.

[0038] Specifically, Figure 1As shown, the metal frame 1 is a truncated cone structure, and a plurality of spaced reinforcing ribs 102 are provided on the metal frame 1, and the reinforcing ribs 102 are used to improve the structural strength of the metal frame 1. The metal frame 1 has a large diameter end and a small diameter end, and the large diameter end is located at the bottom end, and the small diameter end is located at the top end, and the large diameter end has an outer edge extending from the front and rear sides, and a first mounting hole 101 is provided on the outer edge, and the metal frame 1 can be fixed on the frame by bolts cooperating with the first mounting hole 101 and the frame.

[0039] like Figures 1 to 6 As shown, a circular matching groove is provided on the metal frame 1, and the buffer pad 3 is rotatably matched in the circular matching groove, and the buffer pad 3 is made of flexible rubber. The mounting seat 2 is located on the axis of the buffer pad 3, one end of the mounting seat 2 extends into the buffer pad 3 and rotates with the buffer pad 3, and the other end thereof has a second mounting hole 21, and a bolt is inserted into the second mounting hole 21 and the assembly hole on the engine, so that the mounting seat 2 is fixedly connected to the engine. A limiting rod 4 is also provided on the metal frame 1, and the limiting rod 4 is vertically distributed, and its top and bottom ends are fixedly connected to the metal frame 1. The mounting seat 2 is slidably matched with a limiting sleeve 41, and matching rods 42 are provided on both sides of the limiting sleeve 41. The matching rod 42 is slidably matched on the mounting seat 2, and the mounting seat 2 can move relative to the limiting sleeve 41 along the axial direction of the matching rod 42, and the limiting sleeve 41 is slidably matched on the limiting rod 4, and the limiting sleeve 41 can move relative to the limiting rod 4 along the axial direction of the limiting rod 4, and the limiting rod 4 is used to prevent the mounting seat 2 from moving along its axial direction.

[0040] like Figure 2 , Figures 6 to 11As shown, a rotating mechanism 5 is provided on the metal frame 1, and the rotating mechanism 5 includes a pressing plate 51, a driving plate 52 and a gear set. The pressing plate 51 is slidably matched on the metal frame 1. A first elastic member 511 is provided between the pressing plate 51 and the metal frame 1. The first elastic member 511 is a spring. One end of the first elastic member 511 is fixedly connected to the bottom end of the pressing plate 51, and the other end is fixedly connected to the metal frame 1. The pressing plate 51 can move up and down relative to the metal frame 1. At the same time, the pressing plate 51 is slidably matched with the limiting rod 4. The limiting rod 4 is used to prevent the pressing plate 51 from deflecting when moving up and down. The first elastic member 511 is always in a compressed state and applies an upward thrust to the pressing plate 51, so that the upper surface of the pressing plate 51 is always in contact with the mounting seat 2. The bottom end of the driving plate 52 is provided with two mounting plates 512 spaced apart from each other in the front and rear direction. The two driving plates 52 are respectively located on the rear sides of the two mounting plates 512 and are slidably matched with the bottom end of the pressure plate 51. A second elastic member 521 is provided between each driving plate 52 and the mounting plate 512. The second elastic member 521 is a spring. One end of the second elastic member 521 is fixedly connected to the driving plate 52, and the other end thereof is fixedly connected to the mounting plate 512. The driving plate 52 can move forward and backward along the pressure plate 51. The gear set includes a first gear 531, a second gear 532, a third gear 533, a fourth gear 534 and a fifth gear 535. There are two first gears 531, and the two first gears 531 are respectively located on both sides of the limiting rod 4 and are rotatably connected to the metal frame 1 through the rotating shaft 6. A torsion spring 7 is provided between the first gear 531 and the rotating shaft 6, one end of the torsion spring 7 is fixedly connected to the first gear 531, and the other end of the torsion spring 7 is fixedly connected to the rotating shaft 6. The first gear 531 is a one-way gear, and a one-way tooth groove is provided on the driving plate 52. The first gear 531 can be unidirectionally meshed with the driving plate 52. A limiting plate 8 is also provided on the metal frame 1. The limiting plate 8 is a spring sheet with good elasticity. One end of the limiting plate 8 is fixedly connected to the metal frame 1, and the other end thereof abuts against the first gear 531. The limiting plate 8 can limit the first gear 531 in one direction. There are two second gears 532, each of which is fixedly connected to the rotating shaft 6, and the corresponding first gear 531 is coaxially distributed with the second gear 532, the third gear 533 is rotatably connected to the limiting rod 4, the two second gears 532 are meshed with the third gear 533, the fourth gear 534 is fixedly connected to the third gear 533, and the fourth gear 534 is coaxially distributed with the third gear 533, the fifth gear 535 is fixedly set on the buffer pad 3, the fourth gear 534 is an incomplete gear, and the circumferential side of the fourth gear 534 is provided with a first tooth 5341 and a second tooth 5342, the first tooth 5341 and the second tooth 5342 can mesh with the fifth gear 535, and when the fourth gear 534 rotates one circle, the fourth gear 534 drives the fifth gear 535 to rotate through the first tooth 5341 and the second tooth 5342.

[0041] Since the buffer pad 3 is squeezed by the mounting seat 2, and the mounting seat 2 carries the engine, and since the engine is heavy, a larger thrust is required to push the buffer pad 3 to rotate. Since the mounting seat 2 pushes the pressure plate 51 with a smaller force when moving downward, the driving plate 52 will push the first gear 531 to rotate counterclockwise each time the pressure plate 51 moves downward, and the torsion spring 7 accumulates force. When the torsion spring 7 accumulates force to a value greater than the resistance to the rotation of the buffer pad 3, the torsion spring 7 will drive the second gear 532 to rotate. When the mounting seat 2 moves upward, the first elastic member 511 stretches and pushes the pressure plate 51 to move upward, and the driving plate 52 moves upward synchronously with the pressure plate 51. In the process of the driving plate 52 moving upward, the limiting plate 8 limits the first gear 531, thereby preventing the first gear 531 from rotating clockwise.

[0042] When the engine drives the mounting base 2 to move up and down relative to the metal frame 1, the mounting base 2 moves downward and pushes the pressure plate 51 to overcome the elastic force of the first elastic member 511 and move downward. The first elastic member 511 contracts, and the driving plate 52 moves downward synchronously with the pressure plate 51. Under the elastic force of the second elastic member 521, the driving plate 52 is always in contact with the corresponding first gear 531. When the driving plate 52 moves downward, it can push the first gear 531 to rotate, so that the first gear 531 rotates counterclockwise relative to the rotating shaft 6. When the first gear 531 rotates, the torsion spring 7 can accumulate force. When the torsion spring 7 accumulates force to a certain extent, the torsion spring 7 drives the rotating shaft 6 to rotate, and the rotating shaft 6 drives the second gear 532 to rotate. The second gear 532 drives the third gear 533 to rotate. The fourth gear 534 rotates synchronously with the third gear 533. The fourth gear 534 drives the fifth gear 535 to rotate. The buffer pad 3 rotates synchronously with the fifth gear 535, thereby realizing the rotation of the buffer pad 3 around its center of circle.

[0043] like Figure 1 and Figure 2 As shown, a support rod 9 is also provided on the metal frame 1, one end of the support rod 9 is fixedly connected to the small diameter end of the metal frame 1, and the other end of the support rod 9 is a hook-shaped structure. The support rod 9 and the mounting seat 2 are respectively located on the left and right sides of the metal frame 1. The hook-shaped structure of the support rod 9 can be hung on the frame, thereby preventing the metal frame 1 from being subjected to force on only one side, and preventing the metal frame 1 from being subjected to oblique force for a long time and causing it to tilt.

[0044] The implementation principle of the diesel engine suspension support structure of the embodiment of the present invention is as follows: two suspension support structures are distributed in the vehicle frame at intervals, and the two suspension support structures are symmetrically distributed, and the two mounting seats 2 are both located on the inner sides of the two suspension support structures, and the engine is supported on the two mounting seats 2, and the bolts are inserted into the second mounting holes 21 on the mounting seats 2 and the matching holes of the engine, so as to fix the engine, and the engine will vibrate when it is running, thereby driving the mounting seat 2 to move in the six degrees of freedom. Since the mounting seat 2 is slidably matched with the limiting rod 4 through the limiting sleeve 41, the limiting rod 4 limits the movement of the mounting seat 2 in the left and right directions through the limiting sleeve 41, so that the mounting seat 2 can only move in the up and down directions and the front and back directions when the engine vibrates, and prevents the mounting seat 2 from moving left and right and falling off from the metal frame 1. When the mounting seat 2 moves in the front and back directions, the mounting seat 2 can slide relative to the matching rod 42 and squeeze the buffer pads 3 on the front and back sides of the mounting seat 2. When the mounting seat 2 moves up and down, the mounting seat 2 drives the limiting sleeve 41 to move up and down relative to the limiting rod 4 along the limiting rod 4, and squeezes the buffer pads 3 above and below the mounting seat 2. When the mounting seat 2 moves downward, the mounting seat 2 drives the pressure plate 51 to move downward, and the driving plate 52 moves downward synchronously with the pressure plate 51. The driving plate 52 can push the first gear 531 to rotate counterclockwise during the downward movement. The counterclockwise rotation of the first gear 531 can make the torsion spring 7 store force. When the mounting seat 2 moves upward, the limit plate 8 abuts against the first gear 531, thereby preventing the first gear 531 from rotating clockwise. The mounting seat 2 moves downward multiple times to store force on the torsion spring 7 multiple times. When the torsion spring 7 stores force to the point where its elastic force is greater than the resistance encountered when the buffer pad 3 rotates, the torsion spring 7 releases its elastic force and pushes the rotating shaft 6 to rotate counterclockwise, and the second gear 532 and the rotating shaft 6 are rotated counterclockwise. The shaft 6 rotates counterclockwise synchronously, the second gear 532 drives the third gear 533 to rotate clockwise, the fourth gear 534 and the third gear 533 rotate counterclockwise synchronously, the first tooth 5341 and the second tooth 5342 can periodically drive the fifth gear 535 to rotate, and the fifth gear 535 pushes the buffer pad 3 to rotate clockwise, so that after the engine drives the mounting base 2 to vibrate multiple times, the buffer pad 3 can rotate slowly, thereby changing the pressure position of the buffer pad 3, preventing the local area of ​​the buffer pad 3 from being compressed for a long time, causing the compressed area of ​​the buffer pad 3 to age and lose its elasticity, thereby preventing the buffer pad 3 from losing its buffering effect and increasing the service life of the buffer pad 3.

[0045] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A diesel engine suspension support structure, comprising: metal frames, mounts and cushioning pads; The mounting seat is arranged on the metal frame, the mounting seat is used to fix the engine, and the buffer pad is arranged between the mounting seat and the metal frame; It is characterized in that the buffer pad is rotationally matched with the metal frame and the mounting seat respectively, and a rotating mechanism is provided in the metal frame. The mounting seat can drive the rotating mechanism to operate when vibrating up and down, so that the rotating mechanism can drive the buffer pad to rotate relative to the mounting seat and the metal frame.

2. The diesel engine suspension support structure according to claim 1, characterized in that: The rotating mechanism includes a pressure plate, a driving plate and a gear set. The pressure plate is slidably fitted on the metal frame and elastically connected to the metal frame through a first elastic member. The pressure plate is abutted against the mounting seat. The driving plate is slidably fitted on the pressure plate and elastically connected to the pressure plate through a second elastic member. A one-way tooth groove is provided on the driving plate. The driving plate is unidirectionally meshed with the gear set. The rotation of the gear set can drive the buffer pad to rotate.

3. The diesel engine suspension support structure according to claim 2, characterized in that: The gear set includes a first gear, a second gear, a third gear, a fourth gear and a fifth gear. The first gear and the third gear are both rotatably fitted on the metal frame. The first gear is a one-way gear, which is unidirectionally meshed with the drive plate. The second gear is arranged on the first gear, and the second gear is meshed with the third gear. The fourth gear is fixedly arranged on the third gear. The fifth gear is fixedly arranged on the buffer pad, and the fourth gear is meshed with the fifth gear.

4. The diesel engine suspension support structure according to claim 3, characterized in that: The fourth gear is an incomplete gear.

5. The diesel engine suspension support structure according to claim 4, characterized in that: The first gear is rotatably connected to the metal frame via a rotating shaft, a torsion spring is provided between the first gear and the rotating shaft, and the second gear is fixedly connected to the rotating shaft.

6. The diesel engine suspension support structure according to claim 5, characterized in that: The metal frame is provided with a limiting plate, the limiting plate is an elastic structure, and the limiting plate abuts against the first gear, so as to limit the first gear in one direction.

7. The diesel engine suspension support structure according to claim 1, characterized in that: The metal frame is also provided with a limiting rod, which is vertically distributed. The mounting seat is provided with a limiting sleeve, which is slidably matched with the limiting rod.

8. The diesel engine suspension support structure according to claim 1, characterized in that: The metal frame is also provided with a support rod, and the support rod and the mounting seat are respectively arranged on both sides of the metal frame. The end of the support rod is in a hook shape, and the support rod can be clamped with the frame through the hook structure at its end, thereby preventing the metal frame from tilting.

9. The diesel engine suspension support structure according to claim 8, characterized in that: The metal frame is a truncated cone structure having a large diameter end and a small diameter end, and the large diameter end of the metal frame abuts against the vehicle frame.

10. The diesel engine suspension support structure according to claim 8, characterized in that: The metal frame is provided with reinforcing ribs, and the reinforcing ribs are used to improve the structural strength of the metal frame.

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