An adjustable preload damping spring vibration isolator

Abstract

This utility model discloses an adjustable preload damping spring vibration isolator, relating to the field of automotive parts processing technology. It includes a fixed base plate and an adjustment assembly. The fixed base plate is an integrated structure, with support frames mounted on both sides of its upper surface. Rubber bushings are provided on the upper side of each support frame, and a support screw is threadedly connected to the upper side of the support frame. A limit bolt is threadedly connected to the lower end of the support screw. The adjustment assembly includes an adjusting support threaded rod, a movable pressure plate, a fixing bolt, an adjusting bolt, a metal fixing limit rod, a support washer, and a fixing nut. This adjustable preload damping spring vibration isolator allows for flexible adjustment of the preload through the adjustment assembly, matching the vibration isolation system to the weight of the equipment, thereby optimizing the vibration isolation effect and avoiding resonance, thus extending the service life of the device. The damping assembly further enhances the vibration damping effect, further strengthening its vibration reduction function.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts processing technology, specifically to an adjustable preload damping spring vibration isolator. Background Technology

[0002] Damped spring vibration isolators are vibration reduction devices that combine the elasticity of springs with the energy dissipation characteristics of damping. They are primarily used to isolate or reduce the transmission of equipment vibrations. Their core functions can be divided into active and passive vibration isolation. Their working principle is that when equipment vibrates, the spring changes the vibration frequency and amplitude, while the damper further dissipates energy, thereby reducing the vibration and noise transmitted to the supporting structure or ground. They are widely used in industrial equipment, building structures, transportation, and precision instruments. However, current damped spring vibration isolators still have the following shortcomings: For example, patent document CN221880086U discloses a composite damping spring vibration isolator. This composite damping spring vibration isolator relies on springs installed at an angle around its perimeter to generate component forces in the X, Y, and Z three-dimensional directions when subjected to external vibration forces. The effect of these component forces reduces the influence of external vibration interference forces, achieving a vibration isolation effect in three-dimensional directions. However, it is not convenient to flexibly adjust the preload of the vibration isolator and cannot adapt to the weight of different equipment. Utility Model Content

[0003] The purpose of this invention is to provide an adjustable preload damping spring isolator to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an adjustable preload damping spring vibration isolator, comprising a fixed base plate and an adjustment assembly. The fixed base plate is an integrated structure, and support frames are installed on both sides of the upper surface of the fixed base plate. A rubber bushing is provided on the upper side of the support frame, and a support screw is threadedly connected to the upper side of the support frame. A limit bolt is threadedly connected to the lower end surface of the support screw. A load plate is installed on the top of the support screw. The adjustment assembly is disposed on the surface of the load plate, and the adjustment assembly includes an adjusting support threaded rod, a movable pressure plate, a fixing bolt, an adjusting bolt, a metal fixing limit rod, a support washer, and a fixing nut. The adjusting support threaded rod is threadedly connected to the inner side of the load plate, and a movable pressure plate is rotatably connected to the bottom of the adjusting support threaded rod.

[0005] Furthermore, the upper outer surface of the adjusting support threaded rod is threaded with a fixing bolt, and the lower outer surface of the adjusting support threaded rod is threaded with an adjusting bolt.

[0006] Furthermore, a metal fixing limit rod is threadedly connected to the lower end surface of the support frame, and a support pad is installed on the inner end of the metal fixing limit rod, while a fixing nut is threadedly connected to the outer end of the metal fixing limit rod.

[0007] Furthermore, the load plate is an integral structure, and a rubber pad is provided on the upper surface of the load plate.

[0008] Furthermore, a shock-absorbing assembly for vibration reduction is provided on the upper surface of the fixed base plate, and the shock-absorbing assembly includes a shock-absorbing pad, a spring seat, a shock-absorbing spring, and a spring cover, with the shock-absorbing pad disposed on the upper surface of the fixed base plate.

[0009] Furthermore, a spring seat is provided on the upper side of the shock-absorbing pad, and a shock-absorbing spring is installed inside the spring seat. A spring cover is provided on the upper side of the shock-absorbing spring, and the upper surface of the spring cover is connected to the lower surface of the movable pressure plate.

[0010] Furthermore, the shock absorption assembly also includes telescopic damping and a buffer spring, and the telescopic damping is installed on the upper surface of the fixed base plate.

[0011] Furthermore, a buffer spring is provided on the outer side of the telescopic damper, and both the buffer spring and the top of the telescopic damper are connected to the lower surface of the movable pressure plate.

[0012] This utility model provides an adjustable preload damping spring vibration isolator, which has the following beneficial effects: 1. This utility model incorporates an adjustment component, including an adjusting support threaded rod, a movable pressure plate, a fixing bolt, an adjusting bolt, a metal fixing limit rod, a support washer, and a fixing nut. In use, the height of the adjusting support threaded rod is adjusted using the adjusting bolt, which in turn adjusts the height of the movable pressure plate, causing it to press down and change its initial compression, thereby adjusting the preload. The support washer can also be placed on the upper side of the spring seat and fixed by the threaded connection between the metal fixing limit rod and the support frame surface. The fixing nut further reinforces the metal fixing limit rod. The support washer changes the initial compression of the shock-absorbing spring with high adjustment precision. By replacing the support washer with one of different thicknesses, the compression can be adjusted, allowing for flexible adjustment of the preload. This ensures the vibration isolation system matches the equipment weight, optimizing the vibration isolation effect and preventing resonance, thus extending the device's service life.

[0013] 2. This utility model incorporates a shock-absorbing component, which includes a shock-absorbing pad, a spring seat, a shock-absorbing spring, and a spring cover. The shock-absorbing component also includes a telescopic damper and a buffer spring. In use, the shock-absorbing pad enhances the friction coefficient and sound insulation effect of the spring seat. The spring cover and spring seat limit the movement of the shock-absorbing spring, which has a better shock-absorbing effect. When the device is compressed, it will cause the telescopic damper to extend and retract, while the buffer spring further enhances the buffering and shock-absorbing effect, thereby improving the shock-absorbing effect of the device and further enhancing its shock-absorbing function. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of an adjustable preload damping spring vibration isolator according to the present invention. Figure 2 This is a three-dimensional structural diagram of the support frame of an adjustable preload damping spring vibration isolator according to the present invention. Figure 3 This is a three-dimensional structural diagram of the adjustment component of an adjustable preload damping spring vibration isolator according to the present invention. Figure 4 This is a three-dimensional structural diagram of the vibration damping component of an adjustable preload damping spring isolator according to the present invention.

[0015] In the diagram: 1. Fixed base plate; 2. Support frame; 3. Rubber bushing; 4. Support screw; 5. Limit bolt; 6. Load plate; 7. Adjustment assembly; 701. Adjusting support threaded rod; 702. Movable pressure plate; 703. Fixed bolt; 704. Adjusting bolt; 705. Metal fixed limit rod; 706. Support pad; 707. Fixed nut; 8. Rubber pad; 9. Shock absorption assembly; 901. Shock absorption pad; 902. Spring seat; 903. Shock absorption spring; 904. Spring cover; 905. Telescopic damping; 906. Buffer spring. Detailed Implementation

[0016] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0017] like Figures 1 to 4 As shown, an adjustable preload damping spring vibration isolator includes a fixed base plate 1 and an adjusting assembly 7. The fixed base plate 1 is an integrated structure, and support frames 2 are installed on both sides of the upper surface of the fixed base plate 1. Rubber bushings 3 are provided on the upper side of the support frames 2, and support screws 4 are threadedly connected to the upper side of the support frames 2. Limit bolts 5 are threadedly connected to the lower end surface of the support screws 4. A load plate 6 is installed on the top of the support screws 4. The adjusting assembly 7 is disposed on the surface of the load plate 6, and the adjusting assembly 7 includes an adjusting support threaded rod 701, a movable pressure plate 702, a fixing bolt 703, an adjusting bolt 704, and a metal fixing limit. The support includes a rod 705, a support washer 706, and a fixing nut 707. The adjusting support threaded rod 701 is threadedly connected to the inner side of the load plate 6, and the bottom of the adjusting support threaded rod 701 is rotatably connected to a movable pressure plate 702. The upper outer surface of the adjusting support threaded rod 701 is threadedly connected to a fixing bolt 703, and the lower outer surface of the adjusting support threaded rod 701 is threadedly connected to an adjusting bolt 704. The lower surface of the support frame 2 is threadedly connected to a metal fixing limit rod 705, and the inner end of the metal fixing limit rod 705 is equipped with a support washer 706. The outer end of the metal fixing limit rod 705 is threadedly connected to a fixing nut 707.

[0018] The specific operation is as follows: During use, the height of the adjusting support threaded rod 701 is adjusted by adjusting bolt 704. The height of the movable pressure plate 702 is further adjusted by adjusting the support threaded rod 701. The height of the load plate 6 is further reinforced by fixing the support screw 4 and the limit bolt 5. This causes the movable pressure plate 702 to press down, changing the initial compression of the movable pressure plate 702, thereby adjusting the preload. The support shim 706 can also be placed on the upper side of the spring seat 902. The support shim 706 is fixed by the threaded connection between the metal fixed limit rod 705 and the surface of the support frame 2. The metal fixed limit rod 705 is further reinforced by fixing nut 707. The initial compression of the shock absorber spring 903 is changed by the support shim 706, with high adjustment accuracy. The compression amount can be adjusted by replacing the support shims 706 with different thicknesses.

[0019] Please refer to Figure 4 The load plate 6 is an integrated structure, and a rubber pad 8 is provided on the upper surface of the load plate 6. A shock-absorbing component 9 for shock absorption is provided on the upper side of the fixed base plate 1. The shock-absorbing component 9 includes a shock-absorbing pad 901, a spring seat 902, a shock-absorbing spring 903, and a spring cover 904. The shock-absorbing pad 901 is provided on the upper surface of the fixed base plate 1. A spring seat 902 is provided on the upper side of the shock-absorbing pad 901. A shock-absorbing spring 903 is installed inside the spring seat 902. A spring cover 904 is provided on the upper side of the shock-absorbing spring 903. The upper surface of the spring cover 904 is connected to the lower surface of the movable pressure plate 702. The shock-absorbing component 9 also includes a telescopic damper 905 and a buffer spring 906. A telescopic damper 905 is installed on the upper surface of the fixed base plate 1. A buffer spring 906 is provided on the outer side of the telescopic damper 905. The tops of both the buffer spring 906 and the telescopic damper 905 are connected to the lower surface of the movable pressure plate 702. The specific operation is as follows: When in use, the damping pad 901 can enhance the friction coefficient and sound insulation effect of the spring seat 902. The spring cover 904 and the spring seat 902 limit the damping spring 903. The damping spring 903 has a better damping effect. When the device is compressed, it will drive the telescopic damper 905 to extend and retract. At the same time, the buffer spring 906 can further enhance the buffering and damping effect.

[0020] In summary, as Figures 1 to 4As shown, this adjustable preload damping spring isolator, in use, firstly, adjusts the height of the adjusting support threaded rod 701 by adjusting bolt 704, then further adjusts the height of the movable pressure plate 702 by adjusting the support threaded rod 701, and further reinforces the height of the load plate 6 by fixing the support screw 4 and the limit bolt 5, thereby causing the movable pressure plate 702 to press down and change the initial compression of the movable pressure plate 702, thus adjusting the preload. Additionally, a support pad 706 can be placed on the upper side of the spring seat 902, and the support pad 706 is fixed by the threaded connection between the metal fixing limit rod 705 and the surface of the support frame 2. The metal fixing limit rod 705 is further reinforced by fixing nut 707. The initial compression of the shock-absorbing spring 903 is changed by support shim 706, with high adjustment accuracy. The compression is adjusted by changing support shims 706 of different thicknesses. During the use of this device, the shock-absorbing shim 901 can enhance the friction coefficient and sound insulation effect of spring seat 902. Spring cover 904 and spring seat 902 limit the shock-absorbing spring 903. The shock-absorbing spring 903 has a better shock absorption effect. When the device is compressed, it will drive the telescopic damper 905 to extend and retract. At the same time, the buffer spring 906 can further enhance the buffer and shock absorption effect.

[0021] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. An adjustable pre-load damper spring isolator comprising a fixed base plate (1) and an adjustment assembly (7), characterised in that: The fixed base plate (1) is an integrated structure, and a support frame (2) is installed on both sides of the upper surface of the fixed base plate (1). A rubber bushing (3) is provided on the upper side of the support frame (2), and a support screw (4) is threadedly connected to the upper side of the support frame (2). A limit bolt (5) is threadedly connected to the lower end surface of the support screw (4). A load plate (6) is installed on the top of the support screw (4). The adjustment component (7) is set on the surface of the load plate (6), and the adjustment component (7) includes an adjustment support threaded rod (701), a movable pressure plate (702), a fixing bolt (703), an adjustment bolt (704), a metal fixing limit rod (705), a support washer (706), and a fixing nut (707). The adjustment support threaded rod (701) is threadedly connected to the inner side of the load plate (6), and a movable pressure plate (702) is rotatably connected to the bottom of the adjustment support threaded rod (701).

2. The adjustable preload damping spring isolator according to claim 1, characterized in that, The upper outer surface of the adjusting support threaded rod (701) is threaded with a fixing bolt (703), and the lower outer surface of the adjusting support threaded rod (701) is threaded with an adjusting bolt (704).

3. The adjustable preload damping spring vibration isolator according to claim 1, characterized in that, The lower end surface of the support frame (2) is threaded with a metal fixing limit rod (705), and a support pad (706) is installed on the inner end of the metal fixing limit rod (705). A fixing nut (707) is threaded on the outer end of the metal fixing limit rod (705).

4. The adjustable preload damping spring isolator according to claim 1, characterized in that, The load plate (6) is an integrated structure, and a rubber pad (8) is provided on the upper surface of the load plate (6).

5. An adjustable preload damping spring vibration isolator according to claim 1, characterized in that, The upper side of the fixed base plate (1) is provided with a shock-absorbing component (9) for shock absorption, and the shock-absorbing component (9) includes a shock-absorbing pad (901), a spring seat (902), a shock-absorbing spring (903) and a spring cover (904). The shock-absorbing pad (901) is provided on the upper surface of the fixed base plate (1).

6. An adjustable preload damping spring isolator according to claim 5, characterized in that, A spring seat (902) is provided on the upper side of the shock-absorbing pad (901), and a shock-absorbing spring (903) is installed on the inner side of the spring seat (902). A spring cover (904) is provided on the upper side of the shock-absorbing spring (903), and the upper surface of the spring cover (904) is connected to the lower surface of the movable pressure plate (702).

7. An adjustable preload damping spring isolator according to claim 5, characterized in that, The shock absorption assembly (9) also includes a telescopic damper (905) and a buffer spring (906), and the telescopic damper (905) is installed on the upper surface of the fixed base plate (1).

8. An adjustable preload damping spring isolator according to claim 7, characterized in that, A buffer spring (906) is provided on the outside of the telescopic damper (905), and the top of both the buffer spring (906) and the telescopic damper (905) are connected to the lower surface of the movable pressure plate (702).

Images