Mounting method for front-side shock absorber of engine shock absorption system

Abstract

The invention provides a method for mounting a front shock absorber of an engine shock absorption system, which comprises the following steps of: S1, connecting the front shock absorber with an engine, and mounting the front shock absorber on the engine by using an engine mounting interface; s2, the engine is moved, the front-side shock absorber is driven to be close to the engine mounting frame, and the front-side shock absorber and the engine mounting frame are connected through the frame mounting connector; and S3, one end of the spherical joint connecting rod is connected with a torque compensation device mounting interface, and the other end of the spherical joint connecting rod is connected with an actuator of the torque compensation device. According to the mounting method for the front-side shock absorber of the engine shock absorption system, the front-side shock absorber, the engine, the engine mounting frame and the torque compensation device can be assembled and connected in a limited space, and the mounting process is convenient to adjust and align, simple and efficient.

Description

Technical Field

[0001] The invention relates to the field of transmission power system vibration reduction, and in particular to a method for installing a front side vibration reducer of an engine vibration reduction system. Background Art

[0002] In some power systems, the engine as a power source will generate vibrations in all directions. In order to suppress this vibration and improve comfort and system stability, it is necessary to use a vibration reduction unit or suspension to flexibly support the engine. Generally speaking, the engine suspension is mainly composed of rubber vibration isolation pads and metal mounting components such as frames or supports. Rubber vibration isolation pads mainly play the role of suppressing vibrations, while metal mounting components such as frames or supports are used to connect the engine or engine mounting frame and to fix the entire suspension and transmit engine vibrations. In the actual installation process, the engine is heavy and the space between it and the engine mounting frame is relatively narrow, so it is necessary to design a reasonable installation interface and installation method to achieve efficient and accurate suspension installation.

[0003] Through searching, technical documents with relevant shock absorbers or suspensions in the prior art are disclosed. For example, the utility model authorization announcement document with publication number "CN221097336U" and the name "A kind of engine front suspension shock absorber". It relates to a shock absorber, especially a kind of engine front suspension shock absorber, including: an upper connecting plate; a lower connecting plate, provided with a limiting hole, and arranged opposite to the upper connecting plate; a shock absorbing rubber, provided with a shock absorbing hole, and the two ends of the shock absorbing rubber are respectively connected to the upper connecting plate and the lower connecting plate, and the shock absorbing hole is connected to the limiting hole; a limiting column, which is provided on the upper connecting plate and movably inserted into the shock absorbing hole and the limiting hole; and a limiting plate, which is provided on the limiting column and is located below the lower connecting plate, and the limiting plate is larger than the limiting hole.

[0004] For example, the invention patent publication document with the publication number "CN101852266A" and the name "Engine suspension cushion assembly" relates to an engine suspension cushion assembly for mounting and connecting an engine on a vehicle body, which is composed of an upper mounting plate, a lower mounting plate, a rubber pad, an upper limit plate and a lower limit plate. The rubber pad is located between the upper mounting plate and the lower mounting plate, and is integrated with the upper and lower mounting plates. The upper limit plate is vertically fixed downward to the left and right sides of the upper mounting plate, and the lower limit plate is vertically fixed upward to the front and rear sides of the lower mounting plate. Studs are vertically fixed on the upper mounting plate, and mounting holes are opened on the lower mounting plate. The technical solutions disclosed in the above comparative documents do not disclose specific suspension installation methods. Summary of the invention

[0005] In view of the shortcomings of the prior art, the present invention provides a method for installing a front damper of an engine vibration reduction system, wherein the front damper comprises a first damping assembly and a second damping assembly, and further comprises a support, wherein the support comprises a vertically extending mounting plate, the support comprises an engine mounting interface, one end of the first damping assembly comprises a frame mounting interface, and one end of the mounting plate comprises a torque compensation device mounting interface, comprising the following steps: S1, connect the front shock absorber to the engine, and install the front shock absorber on the engine using the engine mounting interface; S2, moving the engine and driving the front shock absorber close to the engine mounting frame, and connecting the front shock absorber and the engine mounting frame using the frame mounting interface; S3, connecting one end of the spherical joint connecting rod to the mounting interface of the torque compensation device, and connecting the other end of the spherical joint connecting rod to the actuator of the torque compensation device.

[0006] Furthermore, in step S3, after one end of the spherical joint connecting rod is connected to the mounting interface of the torque compensation device, the angle of the spherical joint connecting rod is adjusted according to the actuator position of the torque compensation device, and then the other end of the spherical joint connecting rod is connected to the actuator of the torque compensation device.

[0007] Furthermore, a connecting rod mounting hole is opened on the side of the mounting plate as a mounting interface of the torque compensation device, and a screw mounting through hole is also opened in the vertical direction of the connecting rod mounting hole. In the step S3, one end of the spherical joint connecting rod is inserted into the connecting rod mounting hole and then fixed in the connecting rod mounting hole with a bolt.

[0008] Furthermore, before inserting one end of the spherical joint connecting rod into the connecting rod mounting hole, a limiting sleeve and a first wear-resistant sleeve are coaxially inserted into the screw rod mounting through hole, and then one end of the spherical joint connecting rod is inserted into the connecting rod mounting hole.

[0009] Furthermore, the mounting plate also has a nut mounting hole perpendicular to the screw mounting through hole. Before fixing one end of the spherical joint connecting rod with a bolt, a nut is placed through the nut mounting hole, and the spherical joint connecting rod is fixed to the connecting rod mounting hole with the bolt and the nut.

[0010] Furthermore, the first vibration damping assembly has a first base, on which a first rubber body is symmetrically vulcanized and connected, and the second vibration damping assembly has a second base, on which a second rubber body is symmetrically vulcanized and connected; in step S2, the first vibration damping assembly and the second vibration damping assembly are first pre-compressed, specifically, a force F is first applied to the first base or the second base, so that the distance between the first base and the second base is reduced by a pre-compression amount ΔH so that both the first rubber body and the second rubber body are in a compressed state, and then the front shock absorber and the engine mounting frame are connected to maintain the pre-compression amount ΔH.

[0011] Furthermore, a hollow sleeve for limiting is arranged between the first base and the second base, the bottom end of the hollow sleeve abuts against the first base, and the distance between the top end of the hollow sleeve and the second base is a pre-compression amount ΔH. When the force F is applied, the second base and the top end of the hollow sleeve abut against each other, thus completing the pre-compression amount ΔH.

[0012] Furthermore, a fixing screw is provided and made to pass through the second base and extend from the hollow sleeve, and the end of the fixing screw passes through the mounting surface. By rotating the fixing screw, a force F is applied to reduce the distance between the first base and the second base and finally lock the pre-compression amount ΔH.

[0013] Furthermore, a first through hole is provided in the center of the mounting plate, and a second through hole and a third through hole are provided in the center of the first vibration damping assembly and the second vibration damping assembly respectively. In the step S1, the front shock absorber is first assembled, specifically, the first vibration damping assembly is connected to the side of the mounting plate, and then the hollow sleeve is passed through the first through hole and the second through hole in sequence and extends from the second through hole, and then the second vibration damping assembly is connected to the other side of the mounting plate, and finally the fixing screw is passed through the third through hole and the hollow sleeve and extends from the end of the hollow sleeve.

[0014] Furthermore, before the hollow sleeve is passed through the first through hole and the second through hole in sequence, the second wear-resistant sleeve is firstly coaxially sleeved in the second through hole.

[0015] Compared with the prior art, the technical solution of the present application has the following beneficial effects: the method for installing the front shock absorber of the engine vibration reduction system proposed in the present invention can realize the assembly connection between the front shock absorber, the engine, the engine mounting frame and the torque compensation device in a relatively limited space, and the installation process is convenient for adjusting the alignment and is simple and efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 : Installation diagram of the engine front shock absorber; Figure 2 : Schematic diagram of spherical joint connecting rod installation; Figure 3 : Schematic diagram of front shock absorber assembly; Figure 4 : Schematic diagram of the split structure of the front shock absorber; Figure 5 : Cross-sectional view of the support; Figure 6 : A sectional view of the engine front shock absorber along the axial direction of the hollow sleeve; Figure 7 : A cross-sectional view of the engine front shock absorber along the axis of the mounting plate; Figure 8 : Schematic diagram of the overall structure of the front shock absorber; Fig. 9: Schematic diagram of the principle of the pre-compression method. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] A method for installing a front damper of an engine damping system, wherein the front damper comprises a first damping assembly 1 and a second damping assembly 2, and further comprises a support 3, wherein the support 3 has a vertically extending mounting plate 31, the support 3 has an engine mounting interface, one end of the first damping assembly 1 has a frame mounting interface, and one end of the mounting plate 31 has a torque compensation device mounting interface, comprising the following steps: S1, connect the front shock absorber to the engine, and install the front shock absorber on the engine using the engine mounting interface; S2, moving the engine and driving the front shock absorber close to the engine mounting frame, and connecting the front shock absorber and the engine mounting frame using the frame mounting interface; S3, connecting one end of the spherical joint connecting rod 5 to the mounting interface of the torque compensation device, and connecting the other end of the spherical joint connecting rod 5 to the actuator of the torque compensation device.

[0019] For details, please refer to Figure 1 , the front shock absorber is first connected to the engine to facilitate the alignment between the front shock absorber and the engine. The engine has a large weight and volume, so moving the engine is not very convenient. After the front shock absorber and the engine are installed and connected, the engine can be hoisted and moved to the vicinity of the engine mounting frame, and the front shock absorber and the engine mounting frame can be connected through the frame mounting interface. When the front shock absorber and the engine mounting frame are connected, the positions of the front shock absorber and the engine are basically determined and cannot be moved significantly for alignment. Therefore, by utilizing the universal deflection at both ends of the spherical joint connecting rod 5, the actuator of the torque compensation device and the front shock absorber can be accurately and smoothly connected.

[0020] In a more preferred embodiment, in step S3, after one end of the spherical joint connecting rod 5 is connected to the mounting interface of the torque compensation device, the angle of the spherical joint connecting rod 5 is adjusted according to the actuator position of the torque compensation device, and then the other end of the spherical joint connecting rod 5 is connected to the actuator of the torque compensation device.

[0021] In a more preferred embodiment, see Figure 2The side of the mounting plate 31 is provided with a connecting rod mounting hole 313 as a mounting interface of the torque compensation device, and a screw mounting through hole 314 is also provided in the vertical direction of the connecting rod mounting hole 313. In the step S3, one end of the spherical joint connecting rod 5 is inserted into the connecting rod mounting hole 313 and then fixed in the connecting rod mounting hole 313 by a bolt. As in the above-mentioned embodiment, the connection of the torque compensation device requires the front shock absorber to have a certain degree of freedom for alignment. Therefore, after connecting one end of the spherical joint connecting rod 5, the angle of the spherical joint connecting rod 5 can be adjusted to smoothly complete the alignment and realize the connection of the actuator of the torque compensation device.

[0022] In a more preferred embodiment, before one end of the spherical joint connecting rod 5 is placed in the connecting rod mounting hole 313, the limiting sleeve 315 and the second wear-resistant sleeve 318 are coaxially inserted into the screw mounting through hole 314, and then one end of the spherical joint connecting rod 5 is placed in the connecting rod mounting hole 313. The limiting sleeve 315 is sleeved in the screw mounting through hole 314 to limit the axial position of the end of the spherical joint connecting rod 5, and the second wear-resistant sleeve 318 is used as a wear-resistant wear part to prevent the wear between the limiting sleeve 315, the spherical joint connecting rod 5 and the screw from affecting the service life of the entire front shock absorber.

[0023] In a more preferred embodiment, after the front shock absorber is connected to the engine, the bottom surface of the support 3 fits with the engine, and there is no spare space for bolt fastening and installation, and there is no space for placing and fastening the nut. Therefore, the mounting plate 31 is also provided with a nut mounting hole 317 perpendicular to the screw rod mounting through hole 314, and a nut is placed through the nut mounting hole 317 before the spherical joint connecting rod 5 is fixed with a bolt, and the nut is used to fix one end of the spherical joint connecting rod 5 in the connecting rod mounting hole 313 with the bolt. In this way, the space outside the front shock absorber body is not occupied, and the nut is placed in the nut mounting hole 317, and the spherical joint connecting rod 5 can be installed and connected with the screw rod.

[0024] In a more preferred embodiment, see Figure 6 and Fig. 9 The first vibration damping assembly 1 has a first base 13, on which a first rubber body 14 is symmetrically vulcanized and connected, and the second vibration damping assembly 2 has a second base 23, on which a second rubber body 24 is symmetrically vulcanized and connected; in the step S2, the first vibration damping assembly 1 and the second vibration damping assembly 2 are pre-compressed, specifically, a force F is first applied to the first base 13 or the second base 23, so that the distance between the first base 13 and the second base 23 is reduced by a pre-compression amount ΔH so that the first rubber body 14 and the second rubber body 24 are both in a compressed state, and then the front shock absorber is connected to the engine mounting frame to maintain the pre-compression amount ΔH.

[0025] The first vibration damping assembly 1 and the second vibration damping assembly 2 are symmetrically arranged relative to the mounting plate 31. When the front shock absorber is subjected to the vibration load from the engine, the mounting plate 31 will transfer the vibration load to the first rubber body 14 and the second rubber body 24, and the vibration load will be buffered by the flexible support of the rubber body. For example, the first rubber body 14 and the second rubber body 24 are in a free state in the initial state. If one of the rubber bodies is compressed and deformed, the other will be tensilely deformed. In the method provided in this embodiment, when the front shock absorber is installed on the mounting surface S, the distance between the first base 13 and the second base 23 is shortened by the pre-compression amount ΔH by continuously applying the force F to the first base 13 or the second base 23. That is, the first rubber body 14 and the second rubber body 24 will generate a pre-compression amount ΔH in the direction of the force F. When this pre-compression amount ΔH is locked, the first rubber body 14 and the second rubber body 24 are in a compressed state in the initial state. Even if they are deformed by the load, both rubber bodies are compressed. It can be understood that the pre-compression amount ΔH should not be less than the deformation amounts of the first rubber body 14 and the second rubber body 24 under the maximum load.

[0026] In a more preferred embodiment, a hollow sleeve 32 for limiting is provided between the first base 13 and the second base 23, the bottom end of the hollow sleeve 32 contacts the first base 13, the distance between the top end of the hollow sleeve 32 and the second base 23 is a pre-compression amount ΔH, and the pre-compression amount ΔH is completed when the second base 23 and the top end of the hollow sleeve 32 contact each other when the force F is applied. The control of the pre-compression amount ΔH is very critical, and in this embodiment, the top end of the hollow sleeve 32 can play a precise limiting role, and when the force F is applied until the second base 23 and the top end of the hollow sleeve 32 contact each other, the pre-compression of the first rubber body 14 and the second rubber body 24 is completed.

[0027] In a more preferred embodiment, a fixing screw 312 is provided and made to pass through the second base 23 and extend from the hollow sleeve 32, and the end of the fixing screw 312 passes through the mounting surface S. By rotating the fixing screw 312, a force F is applied to reduce the distance between the first base 13 and the second base 23 and finally lock the pre-compression amount ΔH. When the pre-compression is implemented, the fixing screw 312 can be rotated, and a thread or a nut can be installed on the mounting surface S. When the fixing screw 312 is rotated until the second base 23 and the top of the hollow sleeve 32 are in contact, the pre-compression process is completed.

[0028] In a more preferred embodiment, see Figure 3 and Figure 4, a first through hole 311 is provided in the center of the mounting plate 31, and a second through hole 11 and a third through hole 21 are provided in the center of the first vibration damping assembly 1 and the second vibration damping assembly 2, respectively. In the step S1, the front shock absorber is assembled first, specifically, the first vibration damping assembly 1 is connected to the side of the mounting plate 31, and then the hollow sleeve 32 is passed through the first through hole 311 and the second through hole 11 in sequence and extends out from the second through hole 11, and then the second vibration damping assembly 2 is connected to the other side of the mounting plate 31, and finally the fixing screw 312 is passed through the third through hole 21 and the hollow sleeve 32 and extends out from the end of the hollow sleeve 32. The hollow sleeve 32 has a limiting step 321 that cooperates with the inner side of the second through hole 11 to limit the position. The fixing screw 312 penetrates from the top surface of the second base 23 and extends from one end of the hollow sleeve 32. The extended end of the fixing screw 312 can fix the entire front shock absorber on the mounting frame of the engine.

[0029] In a more preferred embodiment, before the hollow sleeve 32 is passed through the first through hole 311 and the second through hole 11 in sequence, the first wear-resistant sleeve 12 is coaxially sleeved in the second through hole 11. The inner wall of the first wear-resistant sleeve 12 is in contact with the outer wall of the hollow sleeve 32. Generally speaking, in order to reduce weight as much as possible, the material of the first base 13 of the first vibration damping assembly 1 may not have good wear resistance. Therefore, the first wear-resistant sleeve 12 has better wear resistance to prevent the first base 13 from being excessively worn, and the first wear-resistant sleeve 12 can be replaced as a consumable part.

[0030] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A method for installing a front damper of an engine vibration reduction system, the front damper comprising a first vibration reduction assembly (1) and a second vibration reduction assembly (2), and also comprising a support (3), the support (3) having a vertically extending mounting plate (31), the support (3) having an engine mounting interface, one end of the first vibration reduction assembly (1) having a frame mounting interface, and one end of the mounting plate (31) having a torque compensation device mounting interface, characterized in that: The steps include: S1, connect the front shock absorber to the engine, and install the front shock absorber on the engine using the engine mounting interface; S2, moving the engine and driving the front shock absorber close to the engine mounting frame, and connecting the front shock absorber and the engine mounting frame using the frame mounting interface; S3, connecting one end of the spherical joint connecting rod (5) to the mounting interface of the torque compensation device, and connecting the other end of the spherical joint connecting rod (5) to the actuator of the torque compensation device.

2. The method for installing the front shock absorber of the engine vibration reduction system according to claim 1, characterized in that: In step S3, after one end of the spherical joint connecting rod (5) is connected to the mounting interface of the torque compensation device, the angle of the spherical joint connecting rod (5) is adjusted according to the position of the actuator of the torque compensation device, and then the other end of the spherical joint connecting rod (5) is connected to the actuator of the torque compensation device.

3. The method for installing the front shock absorber of the engine vibration reduction system according to claim 2, characterized in that: A connecting rod mounting hole (313) is provided on the side of the mounting plate (31) as a mounting interface for the torque compensation device, and a screw mounting through hole (314) is also provided in the vertical direction of the connecting rod mounting hole (313). In step S3, after one end of the spherical joint connecting rod (5) is inserted into the connecting rod mounting hole (313), one end of the spherical joint connecting rod (5) is fixed in the connecting rod mounting hole (313) by means of a bolt.

4. The method for installing the front shock absorber of the engine vibration reduction system according to claim 3, characterized in that: Before one end of the spherical joint connecting rod (5) is inserted into the connecting rod mounting hole (313), a limiting shaft sleeve (315) and a first wear-resistant sleeve (12) are coaxially inserted into the screw rod mounting through hole (314), and then one end of the spherical joint connecting rod (5) is inserted into the connecting rod mounting hole (313).

5. The method for installing the front shock absorber of the engine vibration reduction system according to claim 4, characterized in that: The mounting plate (31) is also provided with a nut mounting hole (317) perpendicular to the screw rod mounting through hole (314); before one end of the spherical joint connecting rod (5) is fixed with a bolt, a nut is placed through the nut mounting hole (317); and one end of the spherical joint connecting rod (5) is fixed in the connecting rod mounting hole (313) with the bolt in combination with the nut.

6. The method for installing the front shock absorber of the engine vibration reduction system according to claim 1, characterized in that: The first vibration damping assembly (1) comprises a first base (13), on which a first rubber body (14) is symmetrically vulcanized and connected, and the second vibration damping assembly (2) comprises a second base (23), on which a second rubber body (24) is symmetrically vulcanized and connected; in step S2, the first vibration damping assembly (1) and the second vibration damping assembly (2) are firstly pre-compressed, specifically, a force F is firstly applied to the first base (13) or the second base (23), so that the distance between the first base (13) and the second base (23) is reduced by a pre-compression amount ΔH so that the first rubber body (14) and the second rubber body (24) are both in a compressed state, and then the front shock absorber is connected to the engine mounting frame to maintain the pre-compression amount ΔH.

7. The method for installing the front shock absorber of the engine vibration reduction system according to claim 6, characterized in that: A hollow sleeve (32) for limiting position is provided between the first base (13) and the second base (23); the bottom end of the hollow sleeve (32) contacts the first base (13); the distance between the top end of the hollow sleeve (32) and the second base (23) is a pre-compression amount ΔH; when a force F is applied, the second base (23) and the top end of the hollow sleeve (32) contact each other, thus completing the pre-compression amount ΔH.

8. The method for installing the front shock absorber of the engine vibration reduction system according to claim 7, characterized in that: A fixing screw (312) is provided and passes through the second base (23) and extends from the hollow sleeve (32). The end of the fixing screw (312) passes through the mounting surface (S). By rotating the fixing screw (312), a force F is applied to reduce the distance between the first base (13) and the second base (23) and finally lock the pre-compression amount ΔH.

9. The method for installing the front shock absorber of the engine vibration reduction system according to claim 8, characterized in that: A first through hole (311) is provided in the center of the mounting plate (31), and a second through hole (11) and a third through hole (21) are provided in the center of the first vibration damping assembly (1) and the second vibration damping assembly (2), respectively. In step S1, the front vibration damper is first assembled, specifically, the first vibration damping assembly (1) and the side of the mounting plate (31) are connected, and then the hollow sleeve (32) is sequentially passed through the first through hole (311) and the second through hole (11) and extends out of the second through hole (11), and then the second vibration damping assembly (2) is connected to the other side of the mounting plate (31), and finally the fixing screw (312) is passed through the third through hole (21) and the hollow sleeve (32) and extends out of the end of the hollow sleeve (32).

10. The method for installing the front shock absorber of the engine vibration reduction system according to claim 9, characterized in that: Before the hollow sleeve (32) is passed through the first through hole (311) and the second through hole (11) in sequence, the first wear-resistant sleeve (12) is coaxially sleeved in the second through hole (11).

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