Hydraulic mount for an automotive engine
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGLING MOTORS
- Filing Date
- 2025-04-27
- Publication Date
- 2026-06-16
Smart Images
Figure CN224364302U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive parts technology, specifically to a hydraulic suspension device for an automotive engine. Background Technology
[0002] Engine mounts are components used to reduce engine vibration in automobiles, playing a crucial role in noise reduction and improved ride comfort. Currently, there are two common types of engine mounts: rubber mounts and hydraulic mounts. Hydraulic mounts combine the damping properties of rubber and fluid. They utilize the elasticity of rubber elements and the relatively high damping and stiffness generated by fluid flow through the channels to weaken low-frequency vibrations of the powertrain at low frequencies, while exhibiting relatively low damping and stiffness at high frequencies to reduce vibration transmission and noise. Therefore, their elasticity and damping performance are generally superior to ordinary rubber mounts, and they are increasingly being used more widely.
[0003] Based on the above, the inventors have discovered the following problems: the hydraulic mounts of current automobile engines are generally integral structures, and the hydraulic oil inside cannot be replaced after long-term use. The hydraulic oil inside the hydraulic mount will oxidize and deteriorate over time, causing its viscosity to change. If the viscosity is too high, it will increase the resistance of the hydraulic system, resulting in increased energy loss and slower response of the mount. If the viscosity is too low, it will reduce the sealing and lubrication of the hydraulic oil, affecting the vibration damping effect of the mount.
[0004] Therefore, in view of this, we have studied and improved the existing structure and its shortcomings, and provided a hydraulic suspension device for automobile engines in order to achieve a more practical purpose. Utility Model Content
[0005] The purpose of this invention is to provide a hydraulic mounting device for an automobile engine to solve the problems mentioned in the background art.
[0006] In view of the above problems, the technical solution proposed by this utility model is as follows:
[0007] A hydraulic mounting device for an automobile engine includes a hydraulic mounting assembly and a replacement assembly. The replacement assembly is disposed outside the hydraulic mounting assembly. The hydraulic mounting assembly is used to reduce vibration of the automobile engine. The replacement assembly is used to replace the hydraulic oil inside the hydraulic mounting assembly. The hydraulic mounting assembly includes a housing with an oil port on the front side near the bottom. The replacement assembly includes an observation seat mounted on the front side of the housing at the oil port. The observation seat has a connecting seat at the end away from the housing. A square sealing block is slidably disposed inside the observation seat, extending into the connecting seat and the oil port at the end away from the housing. Mounting holes are provided at the top and bottom of the housing, and an oil inlet pipe and an oil outlet pipe are respectively connected to the interior of the two mounting holes.
[0008] Furthermore, the square sealing block is connected to a pull rope at the end away from the housing, and the connecting seat has a through hole at the center of the end away from the observation window. The pull rope extends through the through hole to the outside of the connecting seat at the end away from the square sealing block, and a pull ring is connected to the end of the pull rope away from the square sealing block. A first sealing ring is connected inside the through hole, and the inner wall of the first sealing ring is tightly fitted with the outer wall of the pull rope.
[0009] The beneficial effect of adopting the above-mentioned further solution is that, by setting up a pull rope and a pull ring, when a professional operator pulls the pull rope through the pull ring, and under the connecting action of the pull rope, the square sealing block is pulled to the inside of one end of the connecting seat, thereby opening the oil port. This allows the hydraulic oil in the lower fluid chamber to flow into the interior of the observation seat through the oil port. The professional operator observes the color of the hydraulic oil. When the hydraulic oil turns black, the hydraulic oil in the hydraulic suspension assembly needs to be replaced. By setting a first sealing ring inside the through hole, and the first sealing ring being tightly fitted with the pull rope, leakage of hydraulic oil from the through hole can be effectively prevented.
[0010] Furthermore, the observation seat and the communication seat are respectively provided with a first square chamber and a second square chamber. The square sealing block is connected to a spring at the end away from the shell, and the spring is fixedly connected to the inner wall of the second square chamber at the end away from the square sealing block.
[0011] The beneficial effect of adopting the above-mentioned further solution is that by opening a first square chamber inside the observation seat and a second square chamber inside the connecting seat, the square sealing block can move within the observation seat and the connecting seat through the first and second square chambers. By setting a spring, when a professional operator pulls the square sealing block to move it and separate it from the oil port by pulling the pull ring and the pull rope, the square sealing block squeezes the spring, causing the spring to compress. After the oil discharge and oil inlet are completed, the pull rope is slowly released, and the square sealing block automatically resets under the elastic force of the spring, maintaining the sealing state of the oil port and preventing the hydraulic oil from flowing out accidentally.
[0012] Furthermore, a square sealing ring is fitted on the outer wall of the square sealing block. The outer wall of the square sealing ring is in close contact with the inner wall of the first square chamber and the inner wall of the second square chamber. The outer wall of the square sealing ring slides in cooperation with the inner wall of the first square chamber and the inner wall of the second square chamber.
[0013] The beneficial effect of adopting the above-mentioned further solution is that by setting a square sealing ring, the outer wall of the square sealing ring is closely attached to and slides in fit with the inner walls of the first square chamber and the second square chamber, preventing hydraulic oil from leaking from the gap between the square sealing block and the inner walls of the first square chamber and the second square chamber, while not affecting the normal sliding opening and closing action of the square sealing block.
[0014] Furthermore, the connecting seat is connected to a fixing ring at the end away from the housing, and a fixing block is fitted on the outside of the pull rope at the fixing ring. The fixing block has a first threaded hole inside, and the fixing ring has a second threaded hole on the outside at the first threaded hole. A bolt is threaded between the first threaded hole and the second threaded hole.
[0015] The beneficial effect of adopting the above-mentioned further solution is that the position of the pull rope is fixed by the cooperation of the fixing ring, the fixing block and the bolt. When the pull rope needs to be pulled, the bolt is removed to separate the fixing block from the fixing ring, and then the pull rope is pulled outward. After the operation of observing the color of hydraulic oil, draining hydraulic oil and injecting hydraulic oil is completed, the pull rope is released, so that the pull rope is reset under the action of the spring, so that the fixing block is repositioned inside the fixing ring. At this time, the fixing ring and the fixing block are connected and fixed by the bolt.
[0016] Furthermore, the oil inlet pipe and the oil outlet pipe are arranged sequentially from top to bottom, and each end of the oil inlet pipe and the oil outlet pipe opposite to each other is connected to a solenoid valve.
[0017] The beneficial effect of adopting the above-mentioned further solution is that by setting the oil inlet pipe and oil outlet pipe from top to bottom, it is convenient to inject new oil and discharge old oil. By setting up two solenoid valves, the oil inlet and oil outlet pipes are used to realize the oil inlet and oil outlet operations. When oil needs to be discharged, the solenoid valve at the oil inlet pipe is closed and the solenoid valve at the oil outlet pipe is opened. The old oil is extracted through the oil outlet pipe using an external oil pumping device. After the old oil is discharged, the solenoid valve at the oil outlet pipe is closed and the solenoid valve at the oil inlet pipe is opened. The new oil is injected through the oil inlet pipe using an external oil injection device.
[0018] Furthermore, the observation seat is transparent, and an annular groove is formed at the end of the observation seat away from the housing. A second sealing ring is connected to the inner wall of the annular groove, and a hollow ring is threaded inside the annular groove. One end of the hollow ring is fixedly connected to the end of the connecting seat away from the fixed ring, and the hollow ring is pressed and fitted against the second sealing ring at the end away from the connecting seat.
[0019] The beneficial effects of adopting the above-mentioned further solution are that, since the observation seat is transparent, when the hydraulic oil in the hydraulic suspension assembly enters the interior of the observation seat, the transparent observation seat makes it easy for the operator to observe the state of the internal hydraulic oil, such as the color of the hydraulic oil. Through the cooperation of the annular groove, the second sealing ring and the hollow ring, the second sealing ring ensures the sealing between the observation seat and the connecting seat, preventing hydraulic oil leakage. The inner wall of the annular groove is provided with several internal threads, and the outer wall of the hollow ring is provided with several external threads, so that the observation seat and the connecting seat are threadedly connected, which facilitates the installation and disassembly of the connecting seat and makes it convenient to maintain the internal components of the connecting seat.
[0020] Furthermore, a rubber main spring is provided at the upper end of the inner part of the housing, and an upper connecting part is connected to the upper end of the rubber main spring. A partition is provided inside the housing, and the top and bottom surfaces of the partition form an upper liquid chamber and a lower liquid chamber with the inner wall of the housing, respectively. The upper and lower liquid chambers are filled with hydraulic oil. Several inertial channels are opened on the partition, and the upper and lower liquid chambers are connected through the inertial channels. A decoupling membrane is provided inside one side of the partition, and a rubber bottom membrane is connected to the bottom end of the partition. The position of the oil port is higher than the lowest end of the rubber bottom membrane.
[0021] The beneficial effects of adopting the above-mentioned further solutions are that the upper connecting part can be connected to the car engine, the rubber main spring can effectively absorb and buffer engine vibration, reduce the vibration transmission to the car body, and improve the comfort of the car. The setting of the upper fluid chamber, lower fluid chamber, and inertial channel utilizes the flow of hydraulic oil in the inertial channel to generate damping, further attenuating vibration. The decoupling diaphragm can adjust the dynamic characteristics of the hydraulic suspension at different frequencies, improving its vibration isolation performance. The oil port is located above the lowest point of the rubber bottom diaphragm, making it easy for the hydraulic oil in the lower fluid chamber to be discharged through the oil port when the hydraulic oil needs to be replaced.
[0022] Furthermore, a connector is fitted onto the outside of the housing, and a circular hole is formed inside the connector. The inner wall of the circular hole is fixedly connected to the outer wall of the housing, and mounting holes are formed inside both ends of the connector.
[0023] The beneficial effect of adopting the above-mentioned further solution is that by setting the connecting parts, it is easy to install and fix the hydraulic suspension assembly to other parts of the car. Through the mounting holes, bolts and other connecting parts can be used to firmly install it on the car, ensuring the stability of the hydraulic suspension device during operation and enabling it to reliably play the role of reducing engine vibration.
[0024] Compared with the prior art, the beneficial effects of this utility model are as follows: In this hydraulic suspension device for an automobile engine, when the pull rope needs to be pulled, the bolt is removed to separate the fixing block from the fixing ring. Then, a professional operator pulls the pull rope outward through the pull ring, and under the connecting action of the pull rope, pulls the square sealing block, causing the square sealing block to move into one end of the connecting seat, thus opening the oil port. This allows the hydraulic oil in the lower chamber to flow into the interior of the observation seat through the oil port. Because the observation seat is transparent, after the hydraulic oil in the hydraulic suspension assembly enters the interior of the observation seat, the transparent observation seat allows the professional operator to easily observe the color of the hydraulic oil. When the hydraulic oil turns black, the hydraulic oil in the hydraulic suspension assembly needs to be replaced. Continuing to pull the pull ring causes the square sealing block to continue moving towards the connecting seat. The internal movement is completed, and the inlet and outlet pipes are no longer blocked. The solenoid valve at the inlet pipe is closed, and the solenoid valve at the outlet pipe is opened. The old oil is extracted through the outlet pipe using an external oil extraction device. After the old oil is discharged, the solenoid valve at the outlet pipe is closed, and the solenoid valve at the inlet pipe is opened. New oil is injected through the inlet pipe using an external oil injection device. After observing the hydraulic oil color, draining the hydraulic oil, and injecting the hydraulic oil, the pull rope is slowly released, allowing the pull rope and the square sealing block to reset under the action of the spring. The square sealing block automatically resets under the elastic force of the spring, maintaining the sealing state of the oil port and preventing the hydraulic oil from flowing out accidentally. The fixing block is repositioned inside the fixing ring. At this time, the fixing ring and the fixing block are connected and fixed with bolts. Attached Figure Description
[0025] Figure 1 A three-dimensional structural schematic diagram of a hydraulic suspension device for an automobile engine provided by this utility model;
[0026] Figure 2 An exploded three-dimensional structural diagram of a replacement component for a hydraulic mounting device of an automobile engine provided by this utility model;
[0027] Figure 3 A side cross-sectional view of the connecting seat of a hydraulic suspension device for an automobile engine provided by this utility model;
[0028] Figure 4 This is a front cross-sectional view of the hydraulic suspension assembly of a hydraulic suspension device for an automobile engine, provided by this utility model.
[0029] In the diagram: 1. Hydraulic suspension assembly; 11. Connector; 12. Housing; 13. Rubber main spring; 14. Upper connecting part; 15. Partition; 16. Upper fluid chamber; 17. Lower fluid chamber; 18. Inertial channel; 19. Decoupling membrane; 110. Rubber bottom membrane; 2. Replacement assembly; 21. Observation seat; 22. Connecting seat; 23. Annular groove; 24. Hollow ring; 25. Square sealing block; 26. Square sealing ring; 27. Spring; 28. Pull rope; 29. Pull ring; 210. Fixing ring; 211. Fixing block; 212. Bolt; 213. Solenoid valve; 214. Oil inlet pipe; 215. Oil outlet pipe. Detailed Implementation
[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0031] Please see Figures 1-4This utility model provides a technical solution: a hydraulic mount device for an automobile engine, including a hydraulic mount assembly 1 and a replacement assembly 2. The replacement assembly 2 is disposed outside the hydraulic mount assembly 1. The hydraulic mount assembly 1 is used to reduce vibration of the automobile engine, and the replacement assembly 2 is used to replace the hydraulic oil inside the hydraulic mount assembly 1. The hydraulic mount assembly 1 includes a housing 12, and an oil port is provided on the front side of the housing 12 near the bottom. The replacement assembly 2 includes an observation seat 21, which is installed on the front side of the housing 12 at the oil port. The observation seat 21 has a [missing information - likely a design feature or design] at the end away from the housing 12. A square sealing block 25 is slidably disposed inside the connecting seat 22 and the observation seat 21. The square sealing block 25 extends into the interior of the connecting seat 22 at the end away from the housing 12, and extends into the interior of the oil port at the end away from the connecting seat 22. Mounting holes are provided at both the upper and lower ends of the housing 12, and an oil inlet pipe 214 and an oil outlet pipe 215 are respectively connected to the interior of the two mounting holes. A pull rope 28 is connected to the end of the square sealing block 25 away from the housing 12. A through hole is provided at the center of the end of the connecting seat 22 away from the observation window, and the pull rope 28 passes through the through hole at the end away from the square sealing block 25. The perforation extends to the outside of the connecting seat 22, and the pull rope 28 is connected to a pull ring 29 at the end away from the square sealing block 25. A first sealing ring is connected inside the through hole, and the inner wall of the first sealing ring is tightly fitted to the outer wall of the pull rope 28. The observation seat 21 and the connecting seat 22 are respectively provided with a first square chamber and a second square chamber. A spring 27 is connected to the end of the square sealing block 25 away from the housing 12. The end of the spring 27 away from the square sealing block 25 is fixedly connected to the inner wall of the second square chamber. By setting the pull rope 28 and the pull ring 29, when a professional operator pulls the pull rope 28 through the pull ring 29, and the pull rope 28 is connected to the outer wall of the connecting seat 22, the pull rope 28 is connected to the outer wall of the connecting seat 22. The connection of 8 pulls the square sealing block 25, causing it to move to one end of the connecting seat 22, thus opening the oil port. The square sealing block 25 compresses the spring 27, and the opening of the oil port allows the hydraulic oil in the lower fluid chamber 17 to flow into the observation seat 21. Professional operators observe the color of the hydraulic oil. When the hydraulic oil turns black, the hydraulic oil in the hydraulic suspension assembly 1 needs to be replaced. After the oil draining and oil filling are completed, the pull rope 28 is slowly released. Under the elastic force of the spring 27, the square sealing block 25 automatically resets, maintaining the oil port in a sealed state and preventing the hydraulic oil from flowing out accidentally.
[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0033] Please see Figures 1-4 This utility model provides a technical solution: a square sealing ring 26 is fitted on the outer wall of a square sealing block 25. The outer wall of the square sealing ring 26 is tightly fitted with the inner wall of the first square chamber and the inner wall of the second square chamber. The outer wall of the square sealing ring 26 slides in cooperation with the inner walls of the first square chamber and the second square chamber. A fixing ring 210 is connected to the end of the connecting seat 22 away from the housing 12. A fixing block 211 is fitted on the outside of the pull rope 28 at the fixing ring 210. A first threaded hole is opened inside the fixing block 211, and a second threaded hole is opened on the outside of the fixing ring 210 at the first threaded hole. A bolt 212 is threadedly connected between the first threaded hole and the second threaded hole. The oil inlet pipe 214 and the oil outlet pipe 215 are arranged sequentially from top to bottom. Solenoid valves 213 are connected to the opposite ends of both the oil inlet pipe 214 and the oil outlet pipe 215. The observation seat 21 is transparent. An annular groove 23 is formed at the end of the observation seat 21 away from the housing 12. A second sealing ring is connected to the inner wall of the annular groove 23. A hollow ring 24 is threaded into the interior of the annular groove 23. One end of the hollow ring 24 is fixedly connected to the end of the connecting seat 22 away from the fixed ring 210. The hollow ring 24 is pressed against and adheres to the second sealing ring at the end away from the connecting seat 22. A square sealing ring 26 is provided, whose outer wall is tightly fitted and slidingly engaged with the inner walls of the first and second square chambers, preventing... To prevent hydraulic oil leakage from the gaps between the square sealing block 25 and the inner walls of the first and second square chambers, while ensuring the normal sliding opening and closing of the square sealing block 25 is not affected, the position of the pull rope 28 is fixed by the cooperation of the fixing ring 210, the fixing block 211, and the bolt 212. When the pull rope 28 needs to be pulled, the bolt 212 is removed to separate the fixing block 211 from the fixing ring 210, and then the pull rope 28 is pulled outward. After observing the hydraulic oil color, draining hydraulic oil, and injecting hydraulic oil, the pull rope 28 is released, allowing the pull rope 28 to reset under the action of the spring 27, so that the fixing block 211 is repositioned inside the fixing ring 210. At this time, the bolt 212 is then used to fix the position of the pull rope 28. 12. The fixing ring 210 and the fixing block 211 are connected and fixed. The oil inlet pipe 214 and the oil outlet pipe 215 are set from top to bottom to facilitate the injection of new oil and the discharge of old oil. Two solenoid valves 213 are set to work with the oil inlet pipe 214 and the oil outlet pipe 215 to realize the oil inlet and discharge operations. When oil needs to be discharged, the solenoid valve 213 at the oil inlet pipe 214 is closed and the solenoid valve 213 at the oil outlet pipe 215 is opened. The old oil is extracted through the oil outlet pipe 215 using an external oil pumping device. After the old oil is discharged, the solenoid valve 213 at the oil outlet pipe 215 is closed and the solenoid valve 213 at the oil inlet pipe 214 is opened. The new oil is injected through the oil inlet pipe 214 using an external oil injection device.
[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0035] Please see Figures 1-4 This utility model provides a technical solution: a rubber main spring 13 is provided at the upper end of the inner part of the housing 12, and an upper connecting part 14 is connected to the upper end of the rubber main spring 13. A partition 15 is provided inside the housing 12. The top and bottom surfaces of the partition 15 form an upper liquid chamber 16 and a lower liquid chamber 17 with the inner wall of the housing 12, respectively. The upper liquid chamber 16 and the lower liquid chamber 17 are filled with hydraulic oil. A plurality of inertial channels 18 are opened on the partition 15, and the upper liquid chamber 16 and the lower liquid chamber 17 are connected through the inertial channels 18. A decoupling membrane 19 is provided inside one side of the partition 15, and a rubber bottom membrane 11 is connected to the bottom end of the partition 15. The oil port is positioned higher than the lowest point of the rubber base diaphragm 110. A connector 11 is fitted onto the outside of the housing 12. A circular hole is formed inside the connector 11, and the inner wall of the circular hole is fixedly connected to the outer wall of the housing 12. Mounting holes are formed at both ends of the connector 11. The upper connecting part 14 can be connected to the car engine. The rubber main spring 13 can effectively absorb and buffer engine vibration, reduce vibration transmission to the car body, and improve the comfort of the car. The upper fluid chamber 16, lower fluid chamber 17, and inertial channel 18 are designed to utilize the flow of hydraulic oil in the inertial channel 18 to generate damping, further attenuating vibration. The decoupling diaphragm 19 can adjust the dynamic characteristics of the hydraulic suspension at different frequencies, improving its vibration isolation performance. The oil port is positioned higher than the lowest point of the rubber base diaphragm 110, so that when the hydraulic oil needs to be replaced, the hydraulic oil in the lower fluid chamber 17 can be discharged through the oil port.
[0036] Specifically, the working principle of this type of hydraulic suspension device for automobile engines is as follows: The upper connecting part 14 can be connected to the automobile engine. The hydraulic suspension device is fixed to other automobile components through the connecting piece 11. The upper connecting part 14 of the hydraulic suspension assembly 1 is excited to generate vibration, which drives the rubber main spring 13 to move up and down, causing the upper fluid chamber 16 to be stretched and compressed. The volume of the upper fluid chamber 16 continuously increases and decreases, forcing the hydraulic oil to flow back and forth between the upper fluid chamber 16 and the lower fluid chamber 17 through the inertial channel 18 to adapt to the change in the volume of the upper fluid chamber 16. Due to the mutual viscosity and resistance between the inertial channel 18 and the flowing hydraulic oil, and the resonance of the liquid column in the inertial channel 18, the hydraulic oil continuously and rapidly... When the hydraulic suspension passes through the inertial channel 18, it is resisted and used to absorb vibration energy from the powertrain. The decoupling diaphragm 19 can adjust the dynamic characteristics of the hydraulic suspension at different frequencies, improving its vibration isolation performance. The oil port is located higher than the lowest end of the rubber bottom diaphragm 110, so that the hydraulic oil in the lower fluid chamber 17 can be discharged through the oil port when the hydraulic oil needs to be replaced. When the pull rope 28 needs to be pulled, the bolt 212 is removed to separate the fixing block 211 from the fixing ring 210. Then, the professional operator pulls the pull rope 28 outward through the pull ring 29, and under the connection of the pull rope 28, pulls the square sealing block 25, so that the square sealing block 25 is pulled into one end of the connecting seat 22, thereby opening the oil port. The hydraulic oil in the lower chamber 17 flows into the observation seat 21 through the oil port. Since the observation seat 21 is transparent, it allows skilled operators to easily observe the color of the hydraulic oil after it enters the hydraulic suspension assembly 1. When the hydraulic oil turns black, the hydraulic oil in the hydraulic suspension assembly 1 needs to be replaced. Pulling the pull ring 29 further moves the square sealing block 25 into the connecting seat 22, and it no longer blocks the inlet pipe 214 and outlet pipe 215. The solenoid valve 213 at the inlet pipe 214 is closed, and the solenoid valve 213 at the outlet pipe 215 is opened. Old oil is then extracted through the outlet pipe 215 using external oil extraction equipment. After the oil is drained, close the solenoid valve 213 at the drain pipe 215 and open the solenoid valve 213 at the inlet pipe 214. Use an external oil injection device to inject new oil through the inlet pipe 214. After observing the color of the hydraulic oil, draining the hydraulic oil, and injecting the hydraulic oil, slowly loosen the pull rope 28 so that the pull rope 28 and the square sealing block 25 are reset under the action of the spring 27. Slowly loosen the pull rope 28 so that the square sealing block 25 is automatically reset under the elastic force of the spring 27, keeping the oil port sealed and preventing the hydraulic oil from flowing out accidentally. The fixing block 211 is back in the fixing ring 210. At this time, the fixing ring 210 and the fixing block 211 are connected and fixed by the bolt 212.
Claims
1. A hydraulic mounting device for an automobile engine, characterized in that, The device includes a hydraulic suspension assembly (1) and a replacement assembly (2). The replacement assembly (2) is located outside the hydraulic suspension assembly (1). The hydraulic suspension assembly (1) is used to reduce engine vibration. The replacement assembly (2) is used to replace the hydraulic oil inside the hydraulic suspension assembly (1). The hydraulic suspension assembly (1) includes a housing (12). An oil port is provided on the front of the housing (12) near the bottom. The replacement assembly (2) includes an observation seat (21). The observation seat (21) is installed on the front of the housing (12) near the oil port. At the observation seat (21), a connecting seat (22) is provided at the end away from the housing (12). A square sealing block (25) is slidably provided inside the observation seat (21). The square sealing block (25) extends into the interior of the connecting seat (22) at the end away from the housing (12). The square sealing block (25) extends into the interior of the oil port at the end away from the connecting seat (22). Mounting holes are provided at the upper and lower ends of the housing (12). An oil inlet pipe (214) and an oil outlet pipe (215) are respectively connected inside the two mounting holes.
2. The hydraulic mounting device for an automobile engine according to claim 1, characterized in that, The square sealing block (25) is connected to a pull rope (28) at the end away from the housing (12). The connecting seat (22) has a through hole at the center of the end away from the observation window. The pull rope (28) extends through the through hole to the outside of the connecting seat (22) at the end away from the square sealing block (25). The pull rope (28) is connected to a pull ring (29) at the end away from the square sealing block (25). A first sealing ring is connected inside the through hole. The inner wall of the first sealing ring is tightly fitted to the outer wall of the pull rope (28).
3. The hydraulic mounting device for an automobile engine according to claim 1, characterized in that, The observation seat (21) and the connecting seat (22) are respectively provided with a first square chamber and a second square chamber. The square sealing block (25) is connected to a spring (27) at the end away from the shell (12). The spring (27) is fixedly connected to the inner wall of the second square chamber at the end away from the square sealing block (25).
4. The hydraulic mounting device for an automobile engine according to claim 3, characterized in that, The outer wall of the square sealing block (25) is fitted with a square sealing ring (26). The outer wall of the square sealing ring (26) is in close contact with the inner wall of the first square chamber and the inner wall of the second square chamber. The outer wall of the square sealing ring (26) slides in cooperation with the inner wall of the first square chamber and the inner wall of the second square chamber.
5. A hydraulic mounting device for an automobile engine according to claim 2, characterized in that, The connecting seat (22) is connected to a fixing ring (210) at the end away from the housing (12). The outside of the pull rope (28) is fitted with a fixing block (211) at the fixing ring (210). The fixing block (211) has a first threaded hole inside. The outside of the fixing ring (210) has a second threaded hole at the first threaded hole. A bolt (212) is threaded between the first threaded hole and the second threaded hole.
6. A hydraulic mounting device for an automobile engine according to claim 5, characterized in that, The oil inlet pipe (214) and the oil outlet pipe (215) are arranged sequentially from top to bottom, and the opposite ends of the oil inlet pipe (214) and the oil outlet pipe (215) are each connected to a solenoid valve (213).
7. A hydraulic mounting device for an automobile engine according to claim 6, characterized in that, The observation seat (21) is transparent. The observation seat (21) has an annular groove (23) at the end away from the housing (12). The inner wall of the annular groove (23) is connected to a second sealing ring. The annular groove (23) is threaded with a hollow ring (24). One end of the hollow ring (24) is fixedly connected to the end of the connecting seat (22) away from the fixed ring (210). The hollow ring (24) is pressed against the second sealing ring at the end away from the connecting seat (22).
8. A hydraulic mounting device for an automobile engine according to claim 1, characterized in that, The upper part of the housing (12) is provided with a rubber main spring (13), and the upper end of the rubber main spring (13) is connected to an upper connecting part (14). The housing (12) is provided with a partition (15). The top and bottom surfaces of the partition (15) form an upper liquid chamber (16) and a lower liquid chamber (17) with the inner wall of the housing (12), respectively. The upper liquid chamber (16) and the lower liquid chamber (17) are filled with hydraulic oil. Several inertial channels (18) are opened on the partition (15). The upper liquid chamber (16) and the lower liquid chamber (17) are connected through the inertial channels (18). A decoupling membrane (19) is provided inside one side of the partition (15). A rubber bottom membrane (110) is connected to the bottom end of the partition (15). The position of the oil port is higher than the lowest end of the rubber bottom membrane (110).
9. A hydraulic mounting device for an automobile engine according to claim 8, characterized in that, The outer side of the housing (12) is fitted with a connector (11), the inside of the connector (11) is provided with a round hole, the inner wall of the round hole is fixedly connected to the outer wall of the housing (12), and both ends of the connector (11) are provided with mounting holes.