A noise reduction type engine base and its method

Abstract

The present invention discloses a noise-reducing engine base and a method thereof, relating to the technical field of engine bases. The present invention includes two engine mount rubber bodies. Each engine mount rubber body includes an alloy upper housing. Inside the alloy upper housing, a rubber shock absorber is fixedly installed. The bottom of the rubber shock absorber extends downward outside the alloy upper housing. A plug-in member is provided at the top of the alloy upper housing. By providing a detection assembly, when the automobile engine emits obvious noise or the vehicle body has abnormal vibration, the external detection electric push rod will drive the external pressure sensing head to squeeze the rubber shock absorber, judge the elasticity and toughness of the pressure-bearing area of the rubber shock absorber, obtain the current hardness and aging degree of the rubber shock absorber, directly detect the condition of the engine mount rubber body, investigate the causes of abnormal engine noise and vehicle body vibration, the process is simple and fast, and at the same time, reference data can be provided for the replacement and maintenance of the engine mount rubber body.

Description

Technical Field

[0001] The present invention relates to the technical field of engine bases, and particularly relates to a noise-reducing engine base and a method thereof. Background Art

[0002] An automotive engine is generally suspended on a vehicle frame through a base. The base includes a bracket and engine mounts. The engine mounts are usually composed of a unique black rubber material, an alloy housing, and a filling fluid, and are fixed to the engine bracket by three bolts, enabling it to move in four directions: up, down, left, and right. It is mainly used to be installed under the automotive engine to buffer and isolate the vibrations generated during the operation of the engine. When the engine is running, the engine mounts will move up, down, left, and right accordingly, reducing the impact of vibrations on the vehicle body and other components, reducing the noise generated during engine operation, and improving the driving stability and comfort of the vehicle. However, the engine mounts will gradually age, the rubber material will gradually harden, losing its original elasticity, and the vibration damping effect will be greatly reduced. At the same time, problems such as embrittlement and cracking will occur, causing the filling fluid to leak, and ultimately completely losing its vibration damping function.

[0003] Currently, the method for vehicle owners to determine whether the engine mounts need to be replaced is usually the elimination method, checking possible fault points one by one. First, observe whether the damage of the spark plugs and ignition coils causes engine misfiring, which in turn leads to resonance. Secondly, observe whether the faults of the fuel injectors and fuel filters affect the normal operation of the fuel circuit, resulting in unstable idling. In addition, it is also necessary to check whether the carbon deposition problem affects the ignition efficiency, intake air volume, and exhaust back pressure, thereby causing resonance. After excluding the above possible fault points, it is only then that it will be checked whether it is a problem caused by the engine mount failure. The process is relatively complicated and troublesome. At the same time, to check whether the engine mounts are faulty, it is necessary to actively observe whether there are obvious damages, cracks, or oil stains on the surface of the engine mounts, or for automotive repair personnel to use professional equipment to detect the hardness of the engine mounts to determine whether they are aged or damaged. The operation is relatively complex, and the detection means requires professional technology as support. For this reason, a noise-reducing engine base and a method thereof are proposed. Summary of the Invention

[0004] The purpose of the present invention is to solve the problem that the method for vehicle owners to determine whether the engine mounts need to be replaced is relatively complicated and troublesome, and the operation of checking whether the engine mounts are faulty is relatively complex, and the detection means requires professional technology as support. The present invention provides a noise-reducing engine base and a method thereof.

[0005] The present invention specifically adopts the following technical solutions to achieve the above purpose:

[0006] A noise-reducing engine base, comprising two engine mount rubber bodies, each engine mount rubber body including an alloy upper housing, inside which a rubber shock absorber is fixedly installed. The bottom of the rubber shock absorber extends downward outside the alloy upper housing. At the top of the alloy upper housing, there is a plug-in part, the bottom end of which extends into the alloy upper housing and is fixedly installed on the top of the rubber shock absorber. A first engine mount rubber bracket and a second engine mount rubber bracket are respectively fixedly plugged on the two plug-in parts. Three evenly distributed assembly support feet are fixedly installed on the periphery of the alloy upper housing, and a detection component is provided at the bottom of the alloy upper housing;

[0007] The detection component is used to detect the hardness and aging degree of the rubber shock absorber;

[0008] The detection component includes an annular bottom frame arranged at the bottom of the alloy upper housing. The rubber shock absorber is located inside the annular bottom frame. Three assembly ears are fixedly installed on the periphery of the annular bottom frame, and the positions of the assembly ears correspond to those of the three assembly support feet respectively. The assembly ears are adapted to the assembly support feet. Assembly holes are opened at the tops of the assembly support feet and the assembly ears. One hexagonal long screw and two hexagonal short screws are arranged on the periphery of the annular bottom frame. The hexagonal long screw and the hexagonal short screws are both adapted to the assembly holes. The hexagonal long screw and the hexagonal short screws are used to assemble the engine mount rubber body and the annular bottom frame together and fix them on the vehicle frame. An electric sliding table is arranged on one side of the annular bottom frame. The driving end of the electric sliding table is at the bottom. On one side of the driving end of the electric sliding table, an external detection electric push rod is fixedly installed. The external detection electric push rod is horizontally arranged and located at the bottom of the annular bottom frame. The telescopic end of the external detection electric push rod faces the rubber shock absorber and is fixedly installed with an external pressure sensing head. An arc-shaped guide rail is fixedly installed on one side of the annular bottom frame. A driver is drivingly installed at the top of the arc-shaped guide rail. The electric sliding table is fixedly installed on one side of the driver.

[0009] Further, an internal detection electric push rod is fixedly installed at the top of the fixed end of the electric sliding table. The internal detection electric push rod is horizontally arranged. The telescopic end of the internal detection electric push rod faces the alloy upper housing and is fixedly installed with an internal pressure sensing head. An inspection arc-shaped hole is opened on one side of the alloy upper housing, and the position of the inspection arc-shaped hole corresponds to that of the internal pressure sensing head.

[0010] Further, an opening and closing slide rail is fixedly installed on one side of the alloy upper housing. The inspection arc-shaped hole is located inside the opening and closing slide rail. An opening and closing arc plate is slidably installed inside the opening and closing slide rail. A docking groove is opened on the side wall of the opening and closing arc plate. The docking groove is located in the middle of the opening and closing arc plate and is adapted to the internal pressure sensing head.

[0011] Further, two locking housings are fixedly installed on one side of the alloy upper housing. The two locking housings are symmetrically arranged at both ends of the opening and closing slide rail and are adapted to the opening and closing arc plates. Locking grooves are formed at both ends of one side of the opening and closing arc plates. Spring grooves are fixedly installed on one side of each of the locking housings. A return spring is arranged inside each spring groove. One end of each spring groove extends to the locking housing and is provided with a locking ball. The locking ball is slidably installed inside the spring groove. Two ends of the return spring are respectively fixedly connected to the side wall of the locking ball and the inner wall of the spring groove. The locking ball is adapted to the locking groove.

[0012] Further, three anti-loosening screw cylinders are rotatably installed on the periphery of the alloy upper housing. The three anti-loosening screw cylinders are respectively located at the tops of the three assembly support feet. An anti-loosening screw is screwed inside each anti-loosening screw cylinder. One end of the anti-loosening screw extends to the outside of the anti-loosening screw cylinder and is fixedly installed with an anti-loosening claw. The anti-loosening claw is slidably installed on the top of the assembly support foot. The anti-loosening claw is adapted to the heads of the hexagonal long screw and the hexagonal short screw.

[0013] Further, a dust-proof sleeve is fixedly installed on one side of the anti-loosening claw. One end of the dust-proof sleeve is sleeved on the anti-loosening screw cylinder. The anti-loosening screw is located inside the dust-proof sleeve.

[0014] Further, an oil liquid inductor is fixedly installed on the side wall of the telescopic end of the external detection electric push rod.

[0015] A using method of a noise reduction type engine base includes the following steps:

[0016] S1. Installation of the engine mount rubber bracket: The first engine mount rubber bracket and the second engine mount rubber bracket are respectively sleeved on two plug connectors and locked by hexagon screws.

[0017] S2. Installation of the chassis: The annular chassis is sleeved on the bottom of the alloy upper housing to make the assembly ears fit with the assembly support feet. Then, the hexagonal long screws and the hexagonal short screws pass through the respective assembly holes from above to pre-assemble the annular chassis and the engine mount rubber body.

[0018] S3. Installation of the engine mount rubber body: The engine is lifted by a jack. Two groups of engine mount rubber bodies and the annular chassis are placed at both ends of the bottom of the engine. The respective hexagonal long screws and hexagonal short screws are sequentially screwed into the threaded holes on the vehicle frame to fix the engine mount rubber body on the vehicle frame.

[0019] S4. Locking of the screws: The control ring is toggled to drive the anti-loosening claw to lock the heads of the hexagonal long screw and the hexagonal short screw.

[0020] S5. Connect the engine: Lower the engine, and respectively screw and fix the first engine mount bracket and the second engine mount bracket at both ends of the engine to complete the installation.

[0021] S6. Detection of the external rubber: When the vehicle engine emits obvious noises or the vehicle body shows abnormal vibrations, the external detection electric push rod will drive the external pressure sensing head to squeeze the rubber shock absorber, and by comparing the stroke length of the external detection electric push rod with the pressure sensed by the external pressure sensing head, the elasticity and toughness of the compressed area of the rubber shock absorber are judged.

[0022] S7. Detection of the internal rubber: The internal detection electric push rod drives the internal pressure sensing head to drive the opening and closing arc plate to slide, opens the inspection arc hole, and then the internal pressure sensing head penetrates into the inside of the inspection arc hole to detect the inner part of the rubber shock absorber.

[0023] S8. Detection of oil leakage: When the external pressure sensing head detects the outer part of the rubber shock absorber, the oil liquid sensor will simultaneously contact the surface of the rubber shock absorber. If the rubber shock absorber leaks oil, the oil liquid sensor can sense and detect the oil liquid on the outer surface of the rubber shock absorber.

[0024] The beneficial effects of the present invention are as follows:

[0025] 1. By setting the detection component in the present invention, when the vehicle engine emits obvious noises or the vehicle body shows abnormal vibrations, the external detection electric push rod will drive the external pressure sensing head to squeeze the rubber shock absorber, judge the elasticity and toughness of the compressed area of the rubber shock absorber, obtain the current hardness and aging degree of the rubber shock absorber, directly detect the condition of the engine mount body, and check the reasons for the abnormal conditions of engine noise and vehicle body vibration. The process is simple and fast, and at the same time, it can provide reference data for the replacement and maintenance of the engine mount body.

[0026] 2. By setting the internal detection electric push rod in the present invention, the internal detection electric push rod can drive the internal pressure sensing head to detect the part of the rubber shock absorber located inside the alloy upper housing, and at the same time, with the cooperation of the drive of the arc-shaped guide rail and the driver, the internal pressure sensing head performs multi-point detection on the inner rubber shock absorber, and obtains the data of the hardness and aging degree of the upper, lower, inner and outer parts of the rubber shock absorber, realizing accurate detection.

[0027] 3. By setting the opening and closing arc plate in the present invention, under normal conditions, the opening and closing arc plate is located on one side of the inspection arc hole and covers the inspection arc hole, thereby separating the inside of the alloy upper housing from the environment of the engine compartment, protecting the inner part of the rubber shock absorber, and preventing moisture and dust from entering and causing abnormal aging and damage at the connection of the upper and lower parts of the rubber shock absorber.

[0028] 4. By providing a locking housing in the present invention, when the internal detection electric push rod drives the internal pressure sensing head to slide and open / close the opening / closing arc plate, both ends of the opening / closing arc plate will respectively insert into the inside of the two locking housings, squeezing the locking balls to contract towards the inside of the spring groove until the locking balls are opposite to the locking grooves on the opening / closing arc plate. The locking balls are snapped into the locking grooves under the action of the reset spring to limit the opening / closing arc plate, facilitating the opening and closing of the opening / closing arc plate;

[0029] 5. By providing anti-loosening claws in the present invention, after the hexagon long screw and the hexagon short screw are screwed onto the vehicle frame, each control ring can be manually or with the aid of tools to drive the anti-loosening claws to clamp the heads of the hexagon long screw and the hexagon short screw in sequence, preventing the hexagon long screw and the hexagon short screw from loosening due to the vibration generated during the operation of the engine. This not only ensures the stability of the installation of the engine mount rubber body on the vehicle frame, avoids the occurrence of abnormal noise and vibration, but also prevents the threads of the hexagon long screw, hexagon short screw and the threaded holes on the vehicle frame from being worn;

[0030] 6. By providing an oil liquid sensor in the present invention, when the external pressure sensing head detects the outer part of the rubber shock absorber, the oil liquid sensor at the top of the external detection electric push rod will simultaneously contact the surface of the rubber shock absorber. If cracks and damages appear on the surface of the rubber shock absorber, resulting in oil leakage from the damaged sealed oil cavity inside the rubber shock absorber, the oil liquid will slide down along the outer surface of the rubber shock absorber. At this time, the oil liquid sensor can sense and detect the oil liquid on the outer surface of the rubber shock absorber to further investigate the cause of the damage of the engine mount rubber body. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 is a three-dimensional structural schematic diagram of the present invention;

[0032] Figure 2 is a three-dimensional structural schematic diagram of the engine mount rubber body of the present invention;

[0033] Figure 3 is a three-dimensional structural schematic diagram inside the opening / closing slide rail of the present invention;

[0034] Figure 4 is the present invention Figure 3 structural schematic diagram at position A in;

[0035] Figure 5 is a three-dimensional structural schematic diagram of the first perspective of the annular chassis of the present invention;

[0036] Figure 6 is a three-dimensional structural schematic diagram of the second perspective of the annular chassis of the present invention;

[0037] Figure 7 is a three-dimensional structural schematic diagram of the cooperation between the electric slide table and the external detection electric push rod of the present invention;

[0038] Figure 8 It is a schematic diagram of the internal three-dimensional structure of the dust-proof sleeve of the present invention;

[0039] Figure 9 It is a schematic flow chart of the usage method of the noise reduction type engine base of the present invention;

[0040] Reference numerals: 1, alloy upper shell; 101, inspection arc hole; 2, rubber shock absorber; 3, plug-in part; 4, first engine mount rubber bracket; 5, second engine mount rubber bracket; 6, assembly support foot; 601, assembly hole; 7, annular bottom frame; 8, assembly ear; 9, hexagon long screw; 10, hexagon short screw; 11, electric slide; 12, external detection electric push rod; 13, external pressure sensor; 14, arc guide rail; 15, driver; 16, internal detection electric push rod; 17, internal pressure sensor; 18, opening and closing slide rail; 19, opening and closing arc plate; 1901, docking groove; 1902, locking groove; 20, locking shell; 21, spring groove; 22, locking ball; 23, anti-loosening screw barrel; 24, anti-loosening screw rod; 25, anti-loosening claw; 26, control ring; 27, dust-proof sleeve; 28, oil liquid sensor. Detailed implementation manners

[0041] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some but not all of the embodiments of the present invention. Usually, the components of the embodiments of the present invention described and illustrated herein can be arranged and designed in various different configurations.

[0042] Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed present invention, but merely represents selected embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0043] It should be noted that similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. In addition, the terms "first", "second", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0044] In the description of the embodiments of the present invention, it should be noted that the orientation or positional relationship indicated by terms such as "inside", "outside", "upper", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the invention product is usually placed during use. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the present invention.

[0045] As Figures 1 to 9 shown, a noise-reducing engine base includes two engine mount rubber bodies. As Figure 1 shown, the engine mount rubber body includes an alloy upper housing 1. A rubber shock absorber 2 is fixedly installed inside the alloy upper housing 1. The bottom of the rubber shock absorber 2 extends downward to the outside of the alloy upper housing 1. In this embodiment, the engine mount rubber body adopts a hydraulic engine mount rubber, that is, hydraulic oil is injected into the rubber shock absorber 2 and sealed. As Figure 2 shown, a plug-in member 3 is provided at the top of the alloy upper housing 1. The bottom end of the plug-in member 3 extends into the alloy upper housing 1 and is fixedly installed on the top of the rubber shock absorber 2. A first engine mount rubber bracket 4 and a second engine mount rubber bracket 5 are respectively fixedly plugged on the two plug-in members 3. Three evenly distributed assembly support feet 6 are fixedly installed on the periphery of the alloy upper housing 1. A detection component is provided at the bottom of the alloy upper housing 1;

[0046] The detection component is used to detect the hardness and aging degree of the rubber shock absorber 2;

[0047] As Figure 1 shown, the detection component includes an annular bottom frame 7 provided at the bottom of the alloy upper housing 1. The rubber shock absorber 2 is located inside the annular bottom frame 7. As Figure 5 shown, three assembly ears 8 are fixedly installed on the periphery of the annular bottom frame 7. The assembly ears 8 correspond to the positions of the three assembly support feet 6 respectively. The assembly ears 8 are adapted to the assembly support feet 6. As Figure 3 shown, assembly holes 601 are opened at the tops of the assembly support feet 6 and the assembly ears 8. As Figure 6As shown, a hexagonal long screw 9 and two hexagonal short screws 10 are arranged on the circumferential side of the annular chassis 7. In this embodiment, the heads and the types of the threaded grooves of the hexagonal long screw 9 and the hexagonal short screw 10 are the same. Six threaded holes adapted to the hexagonal long screw 9 and the hexagonal short screw 10 are provided on the vehicle frame. The hexagonal long screw 9 and the hexagonal short screw 10 are both adapted to the assembly hole 601. The hexagonal long screw 9 and the hexagonal short screw 10 are used to assemble the rubber mounting body and the annular chassis 7 together and fix them on the vehicle frame. An electric slide table 11 is arranged on one side of the annular chassis 7. The driving end of the electric slide table 11 is located at the bottom. An external detection electric push rod 12 is fixedly installed on one side of the driving end of the electric slide table 11. The external detection electric push rod 12 is horizontally arranged and located at the bottom of the annular chassis 7. As Figure 7 shown, the telescopic end of the external detection electric push rod 12 faces the rubber shock absorber 2 and an external pressure sensing head 13 is fixedly installed thereon. As Figure 5As shown in the figure, an arc-shaped guide rail 14 is fixedly installed on one side of the annular chassis 7. A driver 15 is installed at the top of the arc-shaped guide rail 14 in a driving manner. The electric slide table 11 is fixedly installed on one side of the driver 15. In this embodiment, a set of electric slide tables 11 and external detection electric push rods 12 can be arranged on the circumferential side of the annular chassis 7, or multiple sets can be arranged to perform a comprehensive detection on the rubber shock absorber 2. If only a set of electric slide table 11 and external detection electric push rod 12 are used, the positions of the electric slide table 11 and the external detection electric push rod 12 can be adjusted to the normal force points of the engine mount body to detect the positions where the rubber shock absorber 2 is prone to hardening, aging and damage. Specifically, when installing this noise-reducing engine base, first, the first engine mount bracket 4 and the second engine mount bracket 5 are respectively sleeved on the two plug-in parts 3, and then the first engine mount bracket 4, the second engine mount bracket 5 and the plug-in parts 3 are assembled together by using hexagon head screws of the same model as the hexagon head short screws 10. Then, the two annular chassis 7 are respectively sleeved on the bottoms of the two alloy upper shells 1, so that the assembly ears 8 on the annular chassis 7 are attached to the assembly support feet 6 on the alloy upper shell 1 from the bottom. Then, the hexagon head long screws 9 and the hexagon head short screws 10 are respectively passed through the respective assembly holes 601 from above, so that the annular chassis 7 and the engine mount body are pre-assembled together. Then, the engine is lifted by using a jack, and the two sets of engine mount bodies and the annular chassis 7 are placed at both ends of the bottom of the engine. The respective hexagon head long screws 9 and the hexagon head short screws 10 are sequentially screwed into the threaded holes on the vehicle frame to fix the engine mount body on the vehicle frame. Finally, the engine is lowered, and the first engine mount bracket 4 and the second engine mount bracket 5 are respectively screwed and fixed at both ends of the engine to complete the installation. By setting the detection component, when the automobile engine makes obvious noises or the vehicle body has abnormal vibrations, the external detection electric push rod 12 will drive the external pressure sensor head 13 to move towards the rubber shock absorber 2 until the external pressure sensor head 13 contacts the rubber shock absorber 2 and squeezes the rubber shock absorber 2. Thus, by comparing the stroke length of the external detection electric push rod 12 with the pressure sensed by the external pressure sensor head 13, the elasticity and toughness of the pressure-bearing area of the rubber shock absorber 2 are judged. At the same time, the electric slide table 11 can drive the external detection electric push rod 12 to move up and down, and the driver 15 can carry the electric slide table 11 to perform an arc-shaped sliding along the arc-shaped guide rail 14, so as to change the position of the external detection electric push rod 12, so that the external pressure sensor head 13 can perform multi-point detection on the part of the rubber shock absorber 2 located outside the alloy upper shell 1, thereby obtaining the current hardness and aging degree of the rubber shock absorber 2, directly detecting the condition of the engine mount body, and checking the causes of abnormal conditions of engine noise and vehicle body vibration. The process is simple and fast, and at the same time, it provides reference data for the replacement and maintenance of the engine mount body.

[0048] As Figure 7As shown, an internal detection electric push rod 16 is fixedly installed on the top of the fixed end of the electric slide table 11. The internal detection electric push rod 16 is horizontally arranged, and the telescopic end of the internal detection electric push rod 16 faces the alloy upper shell 1 and is fixedly installed with an internal pressure induction head 17. As Figure 3 , Figure 4 shown, an inspection arc hole 101 is opened on one side of the alloy upper shell 1, and the position of the inspection arc hole 101 corresponds to the position of the internal pressure induction head 17. Specifically, by setting the internal detection electric push rod 16, the internal detection electric push rod 16 is located at the top end of the electric slide table 11 and remains in a relatively static state. When the external detection electric push rod 12 drives the external pressure induction head 13 to detect the outer part of the rubber shock absorber 2, the internal detection electric push rod 16 can drive the internal pressure induction head 17 to move towards the alloy upper shell 1 and penetrate into the inside of the inspection arc hole 101 to detect the part of the rubber shock absorber 2 located inside the alloy upper shell 1. At the same time, with the cooperation of the drive of the arc-shaped guide rail 14 and the driver 15, the internal pressure induction head 17 performs multi-point detection on the inner rubber shock absorber 2 to obtain data on the hardness and aging degree of the upper, lower, inner, and outer parts of the rubber shock absorber 2, realizing precise detection.

[0049] As Figure 4 shown, an opening and closing slide rail 18 is fixedly installed on one side of the alloy upper shell 1, and the inspection arc hole 101 is located inside the opening and closing slide rail 18. As Figure 2 shown, an opening and closing arc plate 19 is slidably installed inside the opening and closing slide rail 18. A docking groove 1901 is opened on the side wall of the opening and closing arc plate 19. The docking groove 1901 is located in the middle of the opening and closing arc plate 19 and is adapted to the internal pressure induction head 17. Specifically, by setting the opening and closing arc plate 19, the opening and closing arc plate 19 is located on one side of the inspection arc hole 101 under normal conditions to cover the inspection arc hole 101, thereby separating the inside of the alloy upper shell 1 from the environment of the engine compartment to protect the inner part of the rubber shock absorber 2 and prevent moisture and dust from entering, which may cause abnormal aging and damage at the connection of the upper and lower parts of the rubber shock absorber 2. When it is necessary to detect the rubber shock absorber 2 inside the alloy upper shell 1, the internal detection electric push rod 16 can drive the internal pressure induction head 17 to dock with the docking groove 1901 on the opening and closing arc plate 19, and then the driver 15 drives the internal detection electric push rod 16 to move along the arc-shaped guide rail 14, thereby driving the opening and closing arc plate 19 to slide on the opening and closing slide rail 18 to open the inspection arc hole 101. The internal detection electric push rod 16 retracts the internal pressure induction head 17 and moves it to one side of the inspection arc hole 101 for detection. Finally, the internal detection electric push rod 16 drives the internal pressure induction head 17 to cover the opening and closing arc plate 19 on one side of the inspection arc hole 101 again for closing, completing the detection.

[0050] As Figure 2As shown in the figure, two locking housings 20 are fixedly installed on one side of the alloy upper housing 1. The two locking housings 20 are symmetrically arranged at both ends of the opening and closing slide rail 18 and are adapted to the opening and closing arc plate 19. Locking grooves 1902 are provided at both ends of one side of the opening and closing arc plate 19. As Figure 4 shown, a spring groove 21 is fixedly installed on one side of each of the locking housings 20. A return spring is arranged inside the spring groove 21. One end of the spring groove 21 extends to the locking housing 20 and is provided with a locking ball 22. The locking ball 22 is slidably installed inside the spring groove 21. Both ends of the return spring are fixedly connected to the side wall of the locking ball 22 and the inner wall of the spring groove 21 respectively. The locking ball 22 is adapted to the locking groove 1902. Specifically, by providing the locking housing 20, when the internal detection electric push rod 16 drives the internal pressure sensing head 17 to slide the opening and closing arc plate 19, when the opening and closing arc plate 19 slides to both ends of the opening and closing slide rail 18 successively, both ends of the opening and closing arc plate 19 will respectively insert into the inside of the two locking housings 20, thereby squeezing the locking ball 22 to contract towards the inside of the spring groove 21 until the locking ball 22 is opposite to the locking groove 1902 on the opening and closing arc plate 19. The locking ball 22 is snapped into the locking groove 1902 under the action of the return spring to limit the opening and closing arc plate 19, facilitating the opening and closing of the opening and closing arc plate 19.

[0051] As Figure 8 shown, three anti-loosening screw cylinders 23 are rotatably installed on the periphery of the alloy upper housing 1. The three anti-loosening screw cylinders 23 are respectively located at the tops of the three assembly support feet 6. An anti-loosening screw rod 24 is screwed inside the anti-loosening screw cylinder 23. One end of the anti-loosening screw rod 24 extends to the outside of the anti-loosening screw cylinder 23 and is fixedly installed with an anti-loosening claw 25. As Figure 3 shown, the anti-loosening claw 25 is slidably installed on the top of the assembly support foot 6. As Figure 1 shown, the anti-loosening claw 25 is adapted to the heads of the hexagon long screw 9 and the hexagon short screw 10. Specifically, by providing the anti-loosening claw 25, since the thread grooves on the hexagon long screw 9 and the hexagon short screw 10 are fixed, after the hexagon long screw 9 and the hexagon short screw 10 are screwed onto the vehicle frame, the positions of their heads are fixed. At this time, each control ring 26 can be manually or with the help of tools to be successively toggled to drive the anti-loosening screw cylinder 23 to rotate, thereby driving the anti-loosening screw rod 24 to drive the anti-loosening claw 25 to move towards the heads of the hexagon long screw 9 and the hexagon short screw 10 until docking, so that the anti-loosening claw 25 clamps the heads of the hexagon long screw 9 and the hexagon short screw 10, making the hexagon long screw 9 and the hexagon short screw 10 locked and unable to rotate, thereby effectively preventing the hexagon long screw 9 and the hexagon short screw 10 from loosening due to the vibration generated during the operation of the engine, not only ensuring the stability of the installation of the engine mount rubber body on the vehicle frame, avoiding abnormal noise and vibration, but also preventing the threads of the hexagon long screw 9 and the hexagon short screw 10 from wearing the threads of the threaded holes on the vehicle frame.

[0052] AsFigure 8 As shown, a dust-proof sleeve 27 is fixedly installed on one side of the anti-loosening pawl 25. One end of the dust-proof sleeve 27 is sleeved on the anti-loosening screw barrel 23, and the anti-loosening screw rod 24 is located inside the dust-proof sleeve 27. Specifically, by setting the dust-proof sleeve 27, the dust-proof sleeve 27 will always cover the outside of the anti-loosening screw rod 24 as the anti-loosening pawl 25 moves, thereby playing a role in protecting the anti-loosening screw rod 24 from dust, moisture, etc., avoiding dust from getting stuck in the thread grooves of the anti-loosening screw rod 24 and the anti-loosening screw barrel 23, and preventing the anti-loosening screw rod 24 and the dust-proof sleeve 27 from rusting.

[0053] As Figure 7 shown, an oil liquid sensor 28 is fixedly installed on the side wall of the telescopic end of the external detection electric push rod 12. Specifically, by setting the oil liquid sensor 28, when the external pressure sensing head 13 detects the outer part of the rubber shock absorber 2, the oil liquid sensor 28 at the top of the external detection electric push rod 12 will simultaneously contact the surface of the rubber shock absorber 2. If cracks and damages appear on the surface of the rubber shock absorber 2, resulting in oil leakage from the damaged sealed oil cavity inside the rubber shock absorber 2, the oil liquid will slide down along the outer surface of the rubber shock absorber 2. At this time, the oil liquid sensor 28 can sense and detect the oil liquid on the outer surface of the rubber shock absorber 2 to further investigate the cause of the damage of the engine mount body.

[0054] As Figure 9 shown, a using method of a noise-reducing engine base includes the following steps:

[0055] S1. Installation of engine mount brackets: The first engine mount bracket 4 and the second engine mount bracket 5 are respectively sleeved on two plug-in parts 3 and locked with hexagon head screws.

[0056] S2. Installation of the chassis: The annular chassis is sleeved on the bottom of the alloy outer shell 1, so that the assembly ears 8 are fitted with the assembly feet 6, and then the hexagon long screws 9 and the hexagon short screws 10 pass through each assembly hole 601 from the upper part, and the annular chassis 7 and the engine mount body are pre-assembled.

[0057] S3. Installation of the engine mount body: Use a jack to lift the engine, put two groups of engine mount bodies and the annular chassis 7 at both ends of the bottom of the engine, and sequentially screw each hexagon long screw 9 and hexagon short screw 10 into the threaded holes on the vehicle frame to fix the engine mount body on the vehicle frame.

[0058] S4. Locking of the screws: Dial the control ring 26 to drive the anti-loosening pawl 25 to lock the heads of the hexagon long screws 9 and the hexagon short screws 10.

[0059] S5. Connect the engine: Lower the engine, and respectively screw and fix the first engine mount bracket 4 and the second engine mount bracket 5 at both ends of the engine to complete the installation.

[0060] S6. Detection of the external rubber: When the automobile engine emits obvious noises or the vehicle body has abnormal vibrations, the external detection electric push rod 12 will drive the external pressure sensor head 13 to extrude the rubber shock absorber 2. By comparing the stroke length of the external detection electric push rod 12 with the pressure sensed by the external pressure sensor head 13, the elasticity and toughness of the compressed area of the rubber shock absorber 2 are judged.

[0061] S7. Detection of the internal rubber: The internal detection electric push rod 16 drives the internal pressure sensor head 17 to drive the opening and closing arc plate 19 to slide, opening the inspection arc hole 101. Then, the internal pressure sensor head 17 extends into the inside of the inspection arc hole 101 to detect the inner part of the rubber shock absorber 2.

[0062] S8. Detection of oil leakage: When the external pressure sensor head 13 detects the outer part of the rubber shock absorber 2, the oil liquid sensor 28 will simultaneously contact the surface of the rubber shock absorber 2. If the rubber shock absorber 2 leaks oil, the oil liquid sensor 28 can detect the oil liquid on the outer surface of the rubber shock absorber 2.

[0063] In summary: Installation of the engine mount rubber body: First, the first engine mount rubber bracket 4 and the second engine mount rubber bracket 5 are respectively sleeved on the two plug connectors 3. Then, hexagon head screws of the same model as the hexagon head short screw 10 are used to assemble the first engine mount rubber bracket 4, the second engine mount rubber bracket 5 and the plug connectors 3 together. Next, the two annular bottom frames 7 are respectively sleeved on the bottoms of the two alloy upper shells 1, so that the assembly ears 8 on the annular bottom frames 7 are fitted with the assembly support feet 6 on the alloy upper shells 1 from the bottom. Then, the hexagon head long screws 9 and the hexagon head short screws 10 are respectively passed through the respective assembly holes 601 from above, so that the annular bottom frames 7 and the engine mount rubber body are pre-assembled together. Then, the engine is lifted by a jack, and two groups of engine mount rubber bodies and annular bottom frames 7 are placed at both ends of the bottom of the engine. The hexagon head long screws 9 and the hexagon head short screws 10 are successively screwed into the threaded holes on the vehicle frame to fix the engine mount rubber body on the vehicle frame. Then, each control ring 26 is manually or with the help of tools to drive the anti-loosening screw barrel 23 to rotate, so that the anti-loosening screw rod 24 drives the anti-loosening claw 25 to move towards the heads of the hexagon head long screw 9 and the hexagon head short screw 10 until docking, so that the anti-loosening claw 25 clamps the heads of the hexagon head long screw 9 and the hexagon head short screw 10, so that the hexagon head long screw 9 and the hexagon head short screw 10 are locked and cannot rotate by themselves. Finally, the engine is lowered, and the first engine mount rubber bracket 4 and the second engine mount rubber bracket 5 are respectively screwed and fixed at both ends of the engine to complete the installation.

[0064] Detection of the engine mount rubber body: When the automobile engine emits obvious noises or the vehicle body has abnormal vibrations, the external detection electric push rod 12 will drive the external pressure sensor head 13 to move towards the rubber shock absorber 2 until the external pressure sensor head 13 contacts the rubber shock absorber 2 and squeezes the rubber shock absorber 2. Thus, by comparing the stroke length of the external detection electric push rod 12 with the pressure sensed by the external pressure sensor head 13, the elasticity and toughness of the compressed area of the rubber shock absorber 2 are judged. At the same time, the electric slide table 11 can drive the external detection electric push rod 12 to move up and down, and the driver 15 can carry the electric slide table 11 to slide along the arc-shaped guide rail 14, thereby changing the position of the external detection electric push rod 12, so that the external pressure sensor head 13 can perform multi-point detection on the part of the rubber shock absorber 2 located outside the alloy upper housing 1, and thus obtain the current hardness and aging degree of the rubber shock absorber 2. At the same time, the internal detection electric push rod 16 can drive the internal pressure sensor head 17 to move towards the alloy upper housing 1, and the internal pressure sensor head 17 is docked with the docking groove 1901 on the opening and closing arc plate 19. Then the driver 15 drives the internal detection electric push rod 16 to move along the arc-shaped guide rail 14, and further drives the opening and closing arc plate 19 to slide on the opening and closing slide rail 18, thereby opening the inspection arc hole 101. The internal pressure sensor head 17 penetrates into the inside of the inspection arc hole 101 to detect the part of the rubber shock absorber 2 located inside the alloy upper housing 1. At the same time, with the cooperation of the drive of the arc-shaped guide rail 14 and the driver 15, the internal pressure sensor head 17 performs multi-point detection on the inner rubber shock absorber 2, directly detects the condition of the engine mount rubber body, and investigates the causes of abnormal engine noises and vehicle body vibrations. And when the external pressure sensor head 13 detects the outer part of the rubber shock absorber 2, the oil liquid sensor 28 at the top of the external detection electric push rod 12 will simultaneously contact the surface of the rubber shock absorber 2. If cracks and damages appear on the surface of the rubber shock absorber 2, resulting in oil leakage from the damaged sealed oil cavity inside the rubber shock absorber 2, the oil liquid will slide down along the outer surface of the rubber shock absorber 2. At this time, the oil liquid sensor 28 can sense and detect the oil liquid on the outer surface of the rubber shock absorber 2 to further investigate the cause of the damage of the engine mount rubber body.

[0065] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification is only the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection required by the present invention is defined by the appended claims and their equivalents.

Claims

1. A noise reduction engine mount, characterized in that: The machine foot rubber body comprises two machine foot rubber bodies, the machine foot rubber body comprises an alloy upper shell (1), a rubber shock absorbing component (2) is fixedly installed inside the alloy upper shell (1), the bottom of the rubber shock absorbing component (2) extends downward to the outside of the alloy upper shell (1), a plug-in component (3) is arranged on the top of the alloy upper shell (1), the bottom end of the plug-in component (3) extends to the inside of the alloy upper shell (1) and is fixedly installed on the top of the rubber shock absorbing component (2), a first machine foot rubber bracket (4) and a second machine foot rubber bracket (5) are fixedly plugged on the two plug-in components (3), three evenly distributed assembly legs (6) are fixedly installed on the peripheral side of the alloy upper shell (1), and a detection component is arranged on the bottom of each of the alloy upper shells (1); The detection component is used to detect the hardness and aging degree of the rubber shock absorbing component (2); The detection assembly comprises an annular base frame (7) arranged at the bottom of the alloy upper housing (1), the rubber shock absorbing member (2) being located inside the annular base frame (7), and three transfer ears (8) being fixedly mounted on the circumference of the annular base frame (7), the transfer ears (8) respectively corresponding to the positions of the three assembly legs (6), the transfer ears (8) being adapted to the assembly legs (6), and the assembly legs (6) and the transfer ears (8) A transfer hole (601) is provided on the top of the annular base frame (7), a long hexagonal screw (9) and two short hexagonal screws (10) are provided on the circumferential side of the annular base frame (7), the long hexagonal screw (9) and the short hexagonal screws (10) are both compatible with the transfer hole (601), the long hexagonal screw (9) and the short hexagonal screws (10) are used to assemble the machine foot rubber body and the annular base frame (7) together and fix them on the frame, an electric slide (11) is provided on one side of the annular base frame (7), the driving end of the electric slide (11) is located at the bottom, an external detection electric push rod (12) is fixedly installed on one side of the driving end of the electric slide (11), the external detection electric push rod (12) is horizontally arranged and located at the bottom of the annular base frame (7), the telescopic end of the external detection electric push rod (12) faces the rubber shock absorber (2) and is fixedly installed with an external pressure sensing head (13), An arc-shaped guide rail (14) is fixedly mounted on one side of the annular base frame (7), a driver (15) is installed on the top of the arc-shaped guide rail (14), and the electric slide (11) is fixedly mounted on one side of the driver (15); An internal detection electric push rod (16) is fixedly installed on the top of the fixed end of the electric slide (11). The internal detection electric push rod (16) is arranged horizontally. The telescopic end of the internal detection electric push rod (16) faces the alloy upper shell (1) and is fixedly installed with an internal pressure sensing head (17). An inspection arc hole (101) is opened on one side of the alloy upper shell (1). The position of the inspection arc hole (101) corresponds to the position of the internal pressure sensing head (17). Three anti-loosening screw barrels (23) are rotatably installed on the circumference of the alloy upper shell (1). The three anti-loosening screw barrels (23) are arranged on the circumference of the alloy upper shell (1). The anti-loosening screw barrel (23) is respectively located at the top of the three assembly legs (6); the interior of the anti-loosening screw barrel (23) is threaded with an anti-loosening screw rod (24); one end of the anti-loosening screw rod (24) extends to the outside of the anti-loosening screw barrel (23) and is fixedly installed with an anti-loosening claw (25); the anti-loosening claw (25) is slidably installed on the top of the assembly legs (6); the anti-loosening claw (25) is adapted to the heads of the hexagonal long screw (9) and the hexagonal short screw (10); and an oil sensor (28) is fixedly installed on the side wall of the telescopic end of the external detection electric push rod (12).

2. A noise reduction engine mount according to claim 1, characterized in that: An opening and closing slide rail (18) is fixedly installed on one side of the alloy upper shell (1), the inspection arc hole (101) is located inside the opening and closing slide rail (18), an opening and closing arc plate (19) is slidably installed inside the opening and closing slide rail (18), and a docking groove (1901) is opened on the side wall of the opening and closing arc plate (19), and the docking groove (1901) is located in the middle of the opening and closing arc plate (19) and is compatible with the internal pressure sensing head (17).

3. A noise reduction engine mount according to claim 2, characterized in that: Two locking shells (20) are fixedly installed on one side of the alloy upper shell (1). The two locking shells (20) are symmetrically arranged at the two ends of the opening and closing slide rail (18) and are compatible with the opening and closing arc plate (19). The opening and closing arc plate (19) has locking grooves (1902) at both ends on one side. A spring groove (21) is fixedly installed on one side of the locking shell (20). A return spring is arranged inside the spring groove (21). One end of the spring groove (21) extends to the locking shell (20) and is provided with a locking ball (22). The locking ball (22) is slidably installed inside the spring groove (21). The two ends of the return spring are respectively fixedly connected to the side wall of the locking ball (22) and the inner wall of the spring groove (21). The locking ball (22) is compatible with the locking groove (1902).

4. The noise reduction engine mount according to claim 1, characterized in that: A dustproof sleeve (27) is fixedly mounted on one side of the anti-loosening claw (25); one end of the dustproof sleeve (27) is sleeved on the anti-loosening screw barrel (23); and the anti-loosening screw rod (24) is located inside the dustproof sleeve (27).

5. A method for using a noise reduction engine mount according to any one of claims 1 to 4, characterized in that it comprises the following steps: S1. Installation of the machine foot rubber bracket: the first machine foot rubber bracket (4) and the second machine foot rubber bracket (5) are respectively sleeved on the two plug-in components (3) and locked with hexagonal screws; S2. Installation of the chassis: The annular chassis is sleeved on the bottom of the alloy upper housing (1), so that the transfer ears (8) fit with the assembly legs (6), and then the long hexagonal screws (9) and the short hexagonal screws (10) are passed through the transfer holes (601) from the top to pre-assemble the annular chassis (7) and the machine foot rubber body; S3. Installation of the engine mount body: Use a jack to lift the engine, place the two sets of engine mount bodies and the annular base frame (7) at both ends of the bottom of the engine, and screw each hexagonal long screw (9) and hexagonal short screw (10) into the threaded hole on the frame in sequence to fix the engine mount body on the frame; S4. Locking the screws: Turn the control ring (26) to drive the anti-loosening claw (25) to lock the heads of the long hexagonal screw (9) and the short hexagonal screw (10); S5. Connect the engine: lower the engine, and screw the first engine mount rubber bracket (4) and the second engine mount rubber bracket (5) to the two ends of the engine to complete the installation; S6. External rubber detection: If the car engine makes obvious noise or the car body vibrates abnormally, the external detection electric push rod (12) will drive the external pressure sensing head (13) to squeeze the rubber shock absorber (2). By recording the stroke length of the external detection electric push rod (12) and comparing it with the pressure sensed by the external pressure sensing head (13), the elasticity and toughness of the pressure-bearing area of ​​the rubber shock absorber (2) can be determined. S7, internal rubber inspection: the internal inspection electric push rod (16) drives the internal pressure sensing head (17) to drive the opening and closing arc plate (19) to slide, so as to open the inspection arc hole (101), and then the internal pressure sensing head (17) probes into the interior of the inspection arc hole (101) to inspect the inner part of the rubber shock absorbing member (2); S8. Detection of oil leakage: When the external pressure sensing head (13) detects the outer portion of the rubber shock absorber (2), the oil sensor (28) will contact the surface of the rubber shock absorber (2) at the same time. If the rubber shock absorber (2) leaks oil, the oil sensor (28) can sense and detect the oil on the outer surface of the rubber shock absorber (2).

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