Vibration isolation unit and vibration isolation rack

Abstract

According to the vibration isolation unit and the vibration isolation rack, the multiple vibration isolation units are arranged on the two sides of the vibration isolation rack, the dampers and the metal springs are arranged in the upper shells of the vibration isolation units, damping of a large machine is achieved through the elastic effect of the metal springs, and the vertical dampers are matched with the hollow cylinders, so that the damping effect of the large machine is achieved. The vertical damping force is provided through cooperation of the transverse damper and the protruding part so as to assist in vertical supporting of the metal spring, the transverse damper is specially arranged, vibration deformation in the transverse direction is resisted through cooperation of the transverse damper and the protruding column, the transverse damping force is provided for supporting, and the vibration isolation effect is good.

Description

Technical Field

[0001] The utility model belongs to the technical field of vibration isolation, and particularly relates to a vibration isolation unit and a vibration isolation pedestal. Background Art

[0002] In actual use, for equipment that is itself a vibration source, in order to reduce its impact on surrounding machines, instruments, and buildings, it is isolated from the support to reduce the unbalanced inertial force transmitted to the support; for the case where the vibration source comes from the vibration of the support, in order to reduce the transmission of external vibration into the system, the system is installed on a vibration isolation pedestal to isolate it from the foundation. Therefore, vibration isolation equipment is widely used.

[0003] Patent 202410292042.0 provides a special strip beam composite vibration isolation pedestal for a 10Kv transformer, which generates an air pressure damping effect through the sliding between the piston head and the sealing cylinder to achieve the vibration isolation effect. It is mainly used on the 10KV main transformer. The horizontal amplitude of the transformer is small, and the sealing cylinder is a precision instrument. Once it is horizontally stressed, it will leak air or even be damaged; for a circulating pump, in terms of vibration energy and horizontal amplitude, it is greater than that of the main transformer. Therefore, the vibration isolation pedestal of the above patent cannot be directly applied to the circulating pump.

[0004] Therefore, the technical problem to be solved by the utility model is that the existing vibration isolation devices are not applicable to machines with large vibration energy and horizontal amplitude. Content of the Utility Model

[0005] To solve the technical problem that the existing vibration isolation devices are not applicable to machines with large vibration energy and horizontal amplitude, the utility model provides a vibration isolation unit and a vibration isolation pedestal.

[0006] The specific scheme is as follows:

[0007] A vibration isolation unit includes an upper housing, a damper is arranged inside the upper housing. The damper includes a vertical damper, the vertical damper is fixedly connected to a horizontal damper, the horizontal damper is sleeved outside a convex column, and the convex column is fixed on a lower housing;

[0008] A hollow cylinder is fixed on the lower housing, the diameter of the hollow cylinder is larger than the diameter of the circle surrounded by the metal spring. When the metal spring is compressed downward by force, the hollow cylinder can abut against the vertical damper;

[0009] The horizontal damper is surrounded by a metal spring, one end of the metal spring is fixed on the vertical damper, and the other end is fixed on the lower housing.

[0010] The vertical damper and the horizontal damper are of an integrally formed structure.

[0011] The gap between the lateral damper and the convex column is 0 - 1 mm.

[0012] The gap between the lateral damper and the metal spring is 0 - 1 mm.

[0013] The bottom end of the convex column is provided with a protruding part, the protruding part surrounds the convex column, and the distance between the upper plane of the protruding part and the bottom surface of the lateral damper is 0 - 1 mm greater than the distance between the top surface of the hollow cylinder and the lower bottom surface of the vertical damper.

[0014] An anti - slip rubber pad is fixed at the bottom of the lower housing.

[0015] An anti - vibration mount includes a steel housing, at least one anti - vibration unit is fixed on each side of the steel housing, and the inside of the steel housing is filled with concrete.

[0016] There are eight anti - vibration units, and four are arranged on each side of the steel housing.

[0017] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0018] The present utility model provides an anti - vibration unit and an anti - vibration mount. A plurality of anti - vibration units are arranged on both sides of the anti - vibration mount. A damper and a metal spring are arranged in the upper housing of the anti - vibration unit, and a lateral damper is particularly arranged. Through the cooperation of the lateral damper and the convex column, a lateral damping force is provided for support to resist vibration deformation in the lateral direction, and the anti - vibration effect is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic cross - sectional view of the anti - vibration unit.

[0020] Figure 2 It is a schematic view of the anti - vibration mount.

[0021] Among them, the upper housing 1, the vertical damper 21, the lateral damper 22, the metal spring 3, the lower housing 4, the hollow cylinder 41, the convex column 5, the protruding part 51, the anti - slip rubber pad 6, the positioning screw 7, the steel housing 8, the anti - vibration unit 9. SPECIFIC EMBODIMENTS

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

[0023] Such as Figure 1As shown in the figure, an anti-vibration unit includes an upper housing 1, a damper is arranged inside the upper housing 1, the damper includes a vertical damper 21, the vertical damper 21 is fixedly connected to a horizontal damper 22, the horizontal damper 22 is sleeved outside a convex column 5, and the convex column 5 is fixed on a lower housing 4;

[0024] A hollow cylinder 41 is fixed on the lower housing 4, the diameter of the hollow cylinder 41 is larger than the diameter of the circle surrounded by the metal spring 3. When the metal spring 3 is compressed downward by force, the hollow cylinder 41 can abut against the vertical damper 21;

[0025] The horizontal damper 22 is surrounded by the metal spring 3, one end of the metal spring 3 is fixed on the vertical damper 21, and the other end is fixed on the lower housing 4.

[0026] The present invention provides an anti-vibration unit and an anti-vibration platform frame. A plurality of anti-vibration units are arranged on both sides of the anti-vibration platform frame. A damper and a metal spring are arranged inside the upper housing of the anti-vibration unit, and a horizontal damper is particularly arranged. Through the cooperation of the horizontal damper and the convex column, a horizontal damping force is provided for support to resist vibration deformation in the horizontal direction, and the anti-vibration effect is good.

[0027] As Figure 1 shown, the upper housing 1 is in the shape of a hollow cube with an open bottom surface. The vertical damper 21 is the same in shape and size as the top surface of the upper housing 1, so that the vertical damper 21 can be embedded into the upper housing 1. The vertical damper 21 has a certain thickness and can generate elastic deformation to exert a vertical damping force.

[0028] The damper is integrally formed, that is, the vertical damper 21 and the horizontal damper 22 are of an integrally formed structure. The horizontal damper 22 is a rubber damper with a certain thickness to exert a horizontal damping force.

[0029] The gap between the horizontal damper 22 and the convex column 5 is 0 - 1 mm, preferably 0. Due to errors in actual production and manufacturing, the workpieces are not particularly precise, so there is a gap between the horizontal damper 22 and the convex column 5, and the two cannot be in clearance fit.

[0030] The gap between the horizontal damper 22 and the metal spring 3 is 0 - 1 mm, preferably 1 mm, so that the metal spring 3 can perform vertical elastic movement on the outer surface of the horizontal damper 22.

[0031] Furthermore, as Figure 1 shown, a protruding portion 51 is provided at the bottom end of the convex column 5. The protruding portion 51 surrounds the convex column 5, and the distance between the upper plane of the protruding portion 51 and the bottom surface of the horizontal damper 22 is 0 - 1 mm greater than the distance between the top surface of the hollow cylinder 41 and the lower bottom surface of the vertical damper 21;

[0032] When the metal spring 3 is compressed downward by force, the top surface of the hollow cylinder 41 first contacts the lower bottom surface of the vertical damper 21, and the vertical damper 21 deforms, which can exert a vertical damping force to assist the metal spring 3 in vertical support. When the metal spring 3 continues to be compressed downward until the upper plane of the protruding portion 51 contacts the bottom surface of the horizontal damper 22, it assists the metal spring 3 in further vertical support. And during the entire elastic movement process of the metal spring 3, through the cooperation of the protruding portion 51 and the horizontal damper 22, a horizontal damping force is provided to resist vibration deformation in the horizontal direction.

[0033] As Figure 1 shown, an anti-slip rubber pad 6 is fixed to the bottom of the lower housing 4, which can prevent the vibration isolation table frame from moving due to the vibration of large machines and play an anti-slip role.

[0034] As Figure 1 shown, threaded holes are provided at the center position of the top of the upper housing 1, the corresponding position of the vertical damper 21, and the center position of the top of the convex column 5. The threaded holes cooperate with the positioning screw 7. During installation, the positioning screw 7 passes through the threaded hole in the upper housing 1 and the threaded hole in the vertical damper 21 and enters the inside of the horizontal damper 22 in sequence, and the end of the positioning screw 7 is inserted into the threaded hole in the convex column 5 for positioning. After the installation is completed, the positioning screw 7 is taken out.

[0035] As Figure 2 shown, a vibration isolation table frame includes a steel housing 8. At least one vibration isolation unit 9 is fixed to each side of the steel housing 8, and the inside of the steel housing 8 is filled with concrete.

[0036] Eight vibration isolation units 9 are provided, with four on each side of the steel housing 8. By providing multiple vibration isolation units 9, the vibration of large machines is converted into the elastic movement of the metal spring 3 to achieve the vibration isolation effect.

[0037] As Figure 2 shown, the steel housing 8 is a hollow cubic structure with an open bottom surface. Among them, the top surface can be fully covered or hollowed out, and the inside is filled with concrete to reduce the weight while ensuring the structural strength of the vibration isolation table frame.

[0038] The specific working process of the present utility model is as follows:

[0039] During operation, place the vibrating large machine on the vibration isolation pedestal. The large machine is in contact with the steel shell 8. During the use of the device, when the device vibrates under external force, the upper shell 1 moves downward under force, driving the vertical damper 21 to compress the metal spring 3 downward. At the same time, relative sliding occurs between the horizontal damper 22 and the convex column 5. Through the elastic action of the metal spring 3, the shock absorption of the large machine is achieved;

[0040] When the force on the device is too large, the metal spring 3 continues to be compressed downward until the bottom surface of the vertical damper 21 contacts the top surface of the hollow cylinder 41, so as to provide a vertical damping force and a primary support function to assist the metal spring 3 in supporting the vertical force;

[0041] If the metal spring 3 continues to be compressed downward until the bottom surface of the horizontal damper 22 contacts the upper plane of the protruding portion 51, the metal spring 3 stops being compressed downward, so as to provide a vertical damping force and a further support function to assist the metal spring 3 in supporting the vertical force;

[0042] With the vibration of the large machine, the metal spring 3 continuously makes elastic movements to achieve the vibration isolation effect. During the whole process of the elastic movement of the metal spring 3, through the cooperation of the horizontal damper 22 and the convex column 5, a horizontal damping force is provided to resist the vibration deformation in the horizontal direction.

[0043] The technical means disclosed in the solution of the present utility model are not limited to the technical means disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that for those of ordinary skill in the art of this technology, without departing from the principle of the present utility model, several improvements and refinements can be made, and these improvements and refinements are also regarded as the protection scope of the present utility model.

Claims

1. A vibration isolation unit, characterized in that: It includes an upper housing (1), inside which a damper is provided. The damper includes a vertical damper (21), the vertical damper (21) is fixedly connected to a horizontal damper (22), the horizontal damper (22) is sleeved outside a convex column (5), and the convex column (5) is fixed on a lower housing (4). A hollow cylinder (41) is fixed on the lower housing (4), the diameter of the hollow cylinder (41) is larger than the diameter of the circle surrounded by the metal spring (3). When the metal spring (3) is compressed downward by force, the hollow cylinder (41) can abut against the vertical damper (21). The metal spring (3) surrounds the outside of the horizontal damper (22), one end of the metal spring (3) is fixed on the vertical damper (21), and the other end is fixed on the lower housing (4).

2. The vibration isolation unit according to claim 1, characterized in that: The vertical damper (21) and the horizontal damper (22) are of an integrally formed structure.

3. The vibration isolation unit according to claim 1, characterized in that: The gap between the horizontal damper (22) and the convex column (5) is 0 - 1 mm.

4. The vibration isolation unit according to claim 1, characterized in that: The gap between the horizontal damper (22) and the metal spring (3) is 0 - 1 mm.

5. The vibration isolation unit according to claim 1, characterized in that: A protruding portion (51) is provided at the bottom end of the convex column (5), the protruding portion (51) surrounds the outside of the convex column (5), and the distance between the upper plane of the protruding portion (51) and the bottom surface of the horizontal damper (22) is 0 - 1 mm larger than the distance between the top surface of the hollow cylinder (41) and the lower bottom surface of the vertical damper (21).

6. The vibration isolation unit according to claim 1, wherein: An anti-slip rubber pad (6) is fixed at the bottom of the lower housing (4).

7. A vibration isolation pedestal, applied to the vibration isolation unit described in claims 1-6, characterized in that: It includes a steel housing (8), at least one vibration isolation unit (9) is respectively fixed on both sides of the steel housing (8), and the inside of the steel housing (8) is filled with concrete.

8. The vibration isolation mount according to claim 7, wherein: Eight vibration isolation units (9) are provided, and four are provided on each side of the steel housing (8).

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