Vibration damping device of power foundation and frame type power foundation

Abstract

A cylinder is connected to the lower portion of a supporting plate, a vibration reduction sleeve is connected to the upper portion of a base, a vibration reduction space is formed in the vibration reduction sleeve, and the cylinder extends into the vibration reduction space and can slide in the vibration reduction space in the axial direction; the first elastic piece is arranged outside the cylinder and the vibration reduction sleeve in a sleeving mode and connected between the supporting plate and the base in an abutting mode, a plurality of strip-shaped protrusions are arranged on the outer wall of the cylinder, and strip-shaped grooves matched with the strip-shaped protrusions are formed in the inner wall of the vibration reduction sleeve, so that the load transmission time is prolonged, and the load power effect is greatly reduced; the power requirement is met, meanwhile, the size of structural components is reduced, the advantages of being easy to construct, short in construction period and not prone to damage are achieved, and the construction cost is greatly reduced.

Description

Technical Field

[0001] The present application relates to the technical field of equipment foundation vibration reduction, and in particular to a vibration reduction device for a power foundation and a frame-type power foundation. Background Art

[0002] With the development of my country's chemical industry, people are beginning to pay more attention to the vibration problems of power foundations. These include: vibrations in power equipment can cause resonance in the underlying foundation; vibrations in the foundation top plate can interfere with instrument operation; and excessive amplitude can damage the foundation structure, resulting in irreversible effects. While traditional dampers can mitigate the adverse effects of power equipment on foundations to a certain extent, they are relatively expensive and require regular inspection and maintenance. Therefore, research on vibration reduction devices is of great significance. Utility Model Content

[0003] The purpose of this application is to overcome the problems in the prior art that traditional dampers are relatively expensive and require regular inspection and maintenance, and to provide a vibration reduction device that can significantly eliminate dynamic loads and reduce engineering costs.

[0004] The technical solution of the present application provides a vibration reduction device for a power base, comprising a support plate, a cylinder, a vibration reduction sleeve, a first elastic member and a base;

[0005] The lower portion of the support plate is connected to the cylinder, the upper portion of the base is connected to the vibration-damping sleeve, the interior of the vibration-damping sleeve includes a vibration-damping space, the cylinder extends into the vibration-damping space and can slide axially within the vibration-damping space, the first elastic member is sleeved on the outside of the cylinder and the vibration-damping sleeve and abuts between the support plate and the base;

[0006] The outer wall of the cylinder is provided with a plurality of strip-shaped protrusions, and the inner wall of the vibration-damping sleeve is provided with strip-shaped grooves adapted to the strip-shaped protrusions.

[0007] Furthermore, the strip-shaped protrusions are arranged obliquely along the outer wall of the cylinder, and adjacent strip-shaped protrusions are arranged in parallel.

[0008] Furthermore, the base includes a base shell and a buffer disc, a buffer space is provided inside the base shell, the buffer disc is installed in the buffer space, and the bottom of the vibration-damping sleeve is connected to the upper surface of the buffer disc.

[0009] Furthermore, the buffer disc includes a disc body, a central round block, a plurality of second elastic members and round beads, and a plurality of buffer holes are opened on the outer circumference of the disc body;

[0010] The upper surface of the disc body is connected to the bottom of the vibration-damping sleeve, the central circular block is installed inside the disc body, and a plurality of second elastic members are circumferentially arranged on the outside of the central circular block, one end of each second elastic member is connected to the outer circumferential surface of the central circular block, and the other end extends radially outward from the central circular block and is connected to a round ball, each round ball is correspondingly stuck in one of the buffer holes, and the round ball at least partially extends out of the buffer hole;

[0011] A buffer gap is reserved between the ball and the inner wall of the buffer space.

[0012] Furthermore, a limit retaining ring is provided at the top of the buffer space, and the limit retaining ring extends inwardly along the radial direction of the base shell, and a connecting opening is provided at the center of the limit retaining ring;

[0013] The bottom of the vibration-damping sleeve passes through the connecting opening and is connected to the upper surface of the buffer disc.

[0014] Furthermore, a first retaining ring is provided on the support plate, the first retaining ring protrudes downward from the edge of the support plate, and a fixed upper groove is formed between the bottom of the support plate and the first retaining ring;

[0015] The base shell is provided with a second retaining ring, which protrudes upward from the edge of the limit retaining ring, and a fixed lower groove is formed between the limit retaining ring and the second retaining ring;

[0016] The upper end of the first elastic member abuts against the fixed upper groove, and the lower end abuts against the fixed lower groove.

[0017] Furthermore, a third elastic member is provided in the vibration-damping space, the lower end of the third elastic member abuts against the bottom of the vibration-damping space, and the upper end of the third elastic member abuts against the cylinder.

[0018] Furthermore, at least two limiting protrusions are evenly arranged on the outer wall of the cylinder, and the limiting protrusions extend outward along the radial direction of the cylinder;

[0019] The inner wall of the vibration damping space is provided with a reserved sliding groove adapted to the limiting protrusion;

[0020] An anti-slip protrusion is provided on the top of the reserved sliding groove.

[0021] Furthermore, a sealing ring is provided at the connection between the top of the vibration-damping sleeve and the cylinder.

[0022] The present application also provides a frame-type power foundation, including a force transmission layer, a frame layer plate, and a vibration-damping layer arranged between the force transmission layer and the frame layer plate, wherein the vibration-damping layer includes a vibration-damping device as described above.

[0023] The above technical solution has the following beneficial effects:

[0024] The vibration reduction device of the power foundation of the present application is configured such that a cylinder is connected to the lower part of the support plate, and a vibration reduction sleeve is connected to the upper part of the base. The interior of the vibration reduction sleeve includes a vibration reduction space. The cylinder extends into the vibration reduction space and can slide axially inside the vibration reduction space. The first elastic member is sleeved on the outside of the cylinder and the vibration reduction sleeve and abuts between the support plate and the base. The outer wall of the cylinder is provided with a plurality of strip-shaped protrusions, and the inner wall of the vibration reduction sleeve is provided with strip-shaped grooves matched with the strip-shaped protrusions, which prolongs the load transfer time and greatly reduces the dynamic effect of the load. While meeting the power requirements, the size of the structural components is reduced. The device has the characteristics of simple construction, short construction period and not easy to be damaged, which greatly reduces the project cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The disclosure of this application will become easier to understand with reference to the accompanying drawings. It should be understood that these drawings are for illustrative purposes only and are not intended to limit the scope of protection of this application. In the drawings:

[0026] Figure 1 This is a partial explosion diagram of a vibration reduction device in one embodiment of the present application;

[0027] Figure 2 This is a three-dimensional assembly diagram of a vibration reduction device in one embodiment of the present application;

[0028] Figure 3 This is a schematic structural diagram of a buffer disc in one embodiment of the present application;

[0029] Figure 4 is a side cross-sectional view of a buffer disc in one embodiment of the present application;

[0030] Figure 5 is a bottom cross-sectional view of a buffer disc in one embodiment of the present application;

[0031] Figure 6 This is a structural diagram of the base housing in one embodiment of the present application;

[0032] Figure 7 is a side sectional view of a base housing in one embodiment of the present application;

[0033] Figure 8 is a cross-sectional view of a vibration reduction device according to an embodiment of the present application;

[0034] Figure 9 is a top view of a cylinder in one embodiment of the present application;

[0035] Figure 10 It is a structural diagram of a frame-type power foundation in one embodiment of the present application.

[0036] Reference table of accompanying symbols:

[0037] Vibration damping device 1:

[0038] Support plate 01, first retaining ring 11, fixed upper groove 12;

[0039] Cylinder 02: strip-shaped protrusion 21, limiting protrusion 22;

[0040] Vibration-damping sleeve 03: vibration-damping space 31, strip groove 32, reserved sliding groove 33, anti-slip protrusion 34;

[0041] First elastic member 04;

[0042] Base 05: base shell 51, second retaining ring 511, fixed lower groove 512, buffer disc 52, disc body 521, center round block 522, second elastic member 523, round ball 524, buffer hole 525, buffer space 53, limit retaining ring 54, connecting opening 55, second retaining ring 56, fixed lower groove 57;

[0043] The third elastic member 06, the sealing ring 07;

[0044] Force transmission layer 2, frame layer 3. DETAILED DESCRIPTION

[0045] The specific implementation of this application is further described below with reference to the accompanying drawings.

[0046] It is easy to understand that according to the technical solution of this application, a variety of structural methods and implementation methods can be replaced with each other by those skilled in the art without changing the essential spirit of this application. Therefore, the following specific embodiments and drawings are only exemplary descriptions of the technical solution of this application and should not be regarded as the entire application or as a limitation or restriction of the technical solution of the application.

[0047] In this specification, directional terms such as "up," "down," "left," "right," "front," "back," "front," "back," "top," and "bottom" are defined relative to the configurations shown in the accompanying drawings. These terms are relative and may vary depending on the device's location or usage. Therefore, these and other directional terms should not be construed as restrictive. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0048] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0049] like Figure 1 、 2 As shown, the vibration reduction device 1 of the power base in one embodiment of the present application includes a support plate 01, a cylinder 02, a vibration reduction sleeve 03, a first elastic member 04 and a base 05;

[0050] The lower portion of the support plate 01 is connected to the cylinder 02, and the upper portion of the base 05 is connected to the vibration-damping sleeve 03. The interior of the vibration-damping sleeve 03 includes a vibration-damping space 31. The cylinder 02 extends into the vibration-damping space 31 and can slide axially within the vibration-damping space 31. The first elastic member 04 is sleeved on the outside of the cylinder 02 and the vibration-damping sleeve 03 and abuts between the support plate 01 and the base 05.

[0051] The outer wall of the cylinder 02 is provided with a plurality of strip-shaped protrusions 21 , and the inner wall of the vibration-damping sleeve 03 is provided with strip-shaped grooves 32 that match the strip-shaped protrusions 21 .

[0052] In this embodiment, the top of the support plate 01 is in contact with the layer where the power equipment is located, the lower part of the support plate 01 is connected to the cylinder 02, and the bottom of the base 05 is in contact with the lower frame plate, and the upper part of the base 05 is connected to the vibration-damping sleeve 03. A vibration-damping space 31 is provided inside the vibration-damping sleeve 03, and the cylinder 02 extends into the vibration-damping space 31. When vibration occurs, the cylinder 02 can slide axially inside the vibration-damping space 31 to perform vibration reduction. The outside of the cylinder 02 and the vibration-damping sleeve 03 is also provided with a first elastic member 04, and the first elastic member 04 is in contact between the support plate 01 and the base 05.

[0053] Specifically, the first elastic member 04 is a high-strength spring. Under normal circumstances, the first elastic member 04 is supported between the support plate 01 and the base 05, providing a certain force between the cylinder 02 and the vibration-damping sleeve 03, so that the cylinder 02 cannot be fully extended into the vibration-damping space 31. When vibration occurs, in order to eliminate the vertical dynamic load generated by the operation of the power equipment in the power layer, the cylinder 02 can slide axially in the vibration-damping space 31. Through this process, the vibration reduction effect of the power foundation can be achieved, and the elasticity provided by the first elastic member 04 can also play a buffering role in the vibration reduction process, further improving the vibration reduction effect.

[0054] The outer wall of the cylinder 02 is provided with a plurality of strip-shaped protrusions 21 , and the inner wall of the vibration-damping sleeve 03 is provided with strip-shaped grooves 32 that match the strip-shaped protrusions 21 .

[0055] When the cylinder 02 slides axially in the vibration-damping space 31, the strip-shaped protrusions 21 provided on the outer wall of the cylinder 02 will be embedded in the strip-shaped grooves 32 provided on the inner wall of the vibration-damping sleeve 03, thereby improving the stability of the cylinder 02 when sliding inside the vibration-damping space 31 and reducing the wear caused by asymmetric wear or uneven friction. At the same time, due to the structural design of the strip-shaped protrusions 21 and the strip-shaped grooves 32, the wear of the device is reduced, the service life of the vibration-damping device 1 can be extended, and the cost and maintenance requirements are reduced.

[0056] In one embodiment, the strip-shaped protrusion 21 and the strip-shaped groove 32 can be in a vertical direction, which can more effectively control the axial sliding of the cylinder 02 and reduce the swing in the tilt direction, thereby improving the stability of the device. At the same time, it can reduce the friction area, making the cylinder 02 slide more smoothly inside the vibration-damping space 31, and the processing technology is simpler, reducing material costs.

[0057] like Figure 2 As shown, in one preferred embodiment, the strip-shaped protrusions 21 are arranged obliquely along the outer wall of the cylinder 02, and adjacent strip-shaped protrusions 21 are arranged in parallel.

[0058] In this preferred embodiment, the direction of the strip-shaped protrusions 21 is inclined relative to the axis of the circumference, and adjacent strip-shaped protrusions 21 are arranged in parallel, so that the cylinder 02 will not get stuck or blocked when sliding in the vibration-damping space 31.

[0059] When eliminating the vertical dynamic load generated by the operation of the power equipment, the cylinder 02 will slide axially in the vibration reduction space 31, wherein the inclined strip protrusion 21 and the matching strip groove 32 can transfer part of the vertical dynamic load to the strip groove 32 through the inclined strip protrusion 21, thereby greatly reducing the vertical dynamic load and making the load distribution more uniform, thereby improving the impact resistance of the device, thereby extending the service life of the vibration reduction device 1 and reducing the maintenance frequency and repair cost.

[0060] like Figure 2 、 6 As shown in Figure 7, in one embodiment, the base 05 includes a base shell 51 and a buffer disc 52. A buffer space 53 is provided inside the base shell 51. The buffer disc 52 is installed in the buffer space 53. The bottom of the vibration-damping sleeve 03 is connected to the upper surface of the buffer disc 52.

[0061] In this embodiment, the base 05 includes a base shell 51 and a buffer disc 52, wherein the buffer disc 52 is arranged in a buffer space 53 inside the base shell 51, and the bottom of the vibration-damping sleeve 03 is fixedly connected to the upper surface of the buffer disc 52. When the power equipment transmits the power load downward, the support column transmits it downward in sequence through the cylinder 02 and the vibration-damping sleeve 03, wherein the cylinder 02 and the vibration-damping sleeve 03 eliminate the vertical dynamic load, and when the buffer disc 52 receives the lateral dynamic load transmitted by the vibration-damping sleeve 03, it can perform certain activities inside the buffer space 53, and can absorb and disperse the lateral dynamic load and the remaining longitudinal dynamic load transmitted to the base 05, thereby enhancing the vibration reduction effect and overall stability of the vibration reduction device 1, and dispersing part of the vibration to the buffer disc 52 before transmitting it to the base shell 51, reducing the stress on the base shell 51 and making it less prone to damage.

[0062] like Figure 2-8 As shown, in a preferred embodiment, the buffer disc 52 includes a disc body 521, a central round block 522, a plurality of second elastic members 523 and round beads 524, and a plurality of buffer holes 525 are opened on the outer circumference of the disc body 521;

[0063] The upper surface of the disc body 521 is connected to the bottom of the vibration-damping sleeve 03. The central circular block 522 is installed inside the disc body 521. A plurality of second elastic members 523 are circumferentially arranged outside the central circular block 522. One end of each second elastic member 523 is connected to the outer circumference of the central circular block 522, and the other end extends radially outward from the central circular block 522 and is connected to a round ball 524. Each round ball 524 is correspondingly stuck in a buffer hole 525, and the round ball 524 at least partially protrudes from the buffer hole 525.

[0064] A buffer gap is reserved between the ball 524 and the inner wall of the buffer space 53 .

[0065] In this preferred embodiment, the buffer disc 52 includes a disc body 521, a center circle block 522, a plurality of second elastic members 523 and a ball 524, and a plurality of buffer holes 525 are opened on the outer circumference of the disc body 521. The disc body 521 is directly connected to the bottom of the vibration-damping sleeve 03, and the center circle block 522 is installed at the center point inside the disc body 521. One end of each second elastic member 523 is connected to the outer circumference of the center circle block 522 along the circumference of the center circle block 522, and a ball 524 is connected to the other end. The second elastic member 523 extends outward radially along the center circle block 522, that is, the center point to which one end of all the second elastic members 523 connected to the center circle block 522 is the center point of the center circle block 522, and each ball 522 at least partially extends out from the buffer hole 525.

[0066] Specifically, when the power equipment transmits the lateral dynamic load downward, the vibration-damping sleeve 03 transmits the lateral dynamic load to the buffer disc 52, and the buffer disc 52 performs a certain lateral displacement in the buffer space 53. At this time, the ball 524 extending from the buffer hole 525 can perform a certain lateral displacement with the inner wall of the buffer space 53. At this time, the second elastic member 523 provides a certain elastic buffer for the displaced ball 524, so that the lateral dynamic load is greatly eliminated, thereby further improving the vibration reduction effect of the vibration reduction device 1 and reducing the lateral vibration and impact transmitted to the base shell 51.

[0067] Cylinder 02 can be a steel ball, and a buffer gap is retained between ball 524 and the inner wall of buffer space 53. The buffer gap is approximately the radius of ball 524. On the one hand, it can reduce the difficulty and error during installation. On the other hand, it can avoid the problem of structural damage to the device when the power foundation generates a lateral dynamic load exceeding the normal value, so that the device can still maintain good vibration reduction performance under various operating conditions.

[0068] The base shell 51 can be made of a material with a certain degree of quietness. When the ball 524 comes into contact with the inner wall of the buffer space 53, the impact noise caused by vibration can be reduced, making the device quieter during operation.

[0069] The buffer disc 52 is designed to be cylindrical, and the base 05 is also designed to be cylindrical. The buffering cooperation between the cylinder 02 and the buffer space 53 can be more evenly distributed on the buffer disc 52, reducing local loads and alleviating structural wear of the device.

[0070] like Figure 1 、 2 As shown in Figures 6, 7, and 8, in one embodiment, a limit retaining ring 54 is further provided at the top of the buffer space 53. The limit retaining ring 54 extends inwardly along the radial direction of the base shell 51, and a connecting opening 55 is provided at the center of the limit retaining ring 54;

[0071] The bottom of the vibration-damping sleeve 03 is connected to the upper surface of the buffer disc 52 through the connecting opening 55 .

[0072] In this embodiment, a limiting retaining ring 54 is provided at the top of the buffer space 53. The limiting retaining ring 54 extends radially inward along the base shell 51, and a connecting opening 55 is also provided at the center of the limiting retaining ring 54. The bottom of the vibration damping sleeve 03 passes through this connecting opening 55 and is connected to the upper surface of the buffer disc 52.

[0073] Specifically, the limit ring 54 mainly provides positioning for the vibration-damping sleeve 03, and the provided connecting opening 55 can ensure that the vibration-damping sleeve 03 is accurately aligned and fixed on the buffer disc 52 during the installation process, reducing the error during installation, ensuring that the bottom of the vibration-damping sleeve 03 is stably in contact with the upper surface of the buffer disc 52, and helping to evenly apply load to the buffer disc 52, thereby improving the overall stability of the system.

[0074] When the power equipment vibrates, the limit ring 54 can also limit the radial movement of the vibration-damping sleeve 03 in the buffer space 53, preventing the vibration-damping sleeve 03 from radial displacement during operation, thereby improving the stability of the device.

[0075] like Figure 1 、 2 As shown in Figures 7 and 8, in a preferred embodiment, a first retaining ring 11 is provided on the support plate 01. The first retaining ring 11 protrudes downward from the edge of the support plate 01, and a fixed upper groove 12 is formed between the bottom of the support plate 01 and the first retaining ring 11;

[0076] A second retaining ring 56 is provided on the base housing 51. The second retaining ring 56 protrudes upward from the edge of the limiting retaining ring 54. A fixed lower groove 57 is formed between the limiting retaining ring 54 and the second retaining ring 56.

[0077] The upper end of the first elastic member 04 abuts against the fixed upper groove 12 , and the lower end abuts against the fixed lower groove 57 .

[0078] In this preferred embodiment, a first retaining ring 11 is provided on the support plate 01, and the first retaining ring 11 protrudes downward from the edge of the support plate 01, so that a fixed upper groove 12 is formed between the bottom of the support plate 01 and the first retaining ring 11;

[0079] The second retaining ring 56 is arranged on the base shell 51, and the second retaining ring 56 protrudes upward from the edge of the limiting retaining ring 54, so that a fixed lower groove 57 is formed between the limiting retaining ring 54 and the second retaining ring 56, and the first elastic member 04 is arranged between the fixed lower groove 57 and the fixed upper groove 12, which can ensure that the first elastic member 04 works stably in this device, prevent it from causing accidents during operation, and improve the stability of the vibration reduction device 1.

[0080] Furthermore, by fixing the upper end and the lower end of the first elastic member 04 in the fixed upper groove 12 and the fixed lower groove 57 respectively, it can ensure that the first elastic member 04 bears the load evenly during operation, reduces local pressure, makes it less likely to be damaged, and prolongs the service life of the device.

[0081] like Figure 8As shown, in another embodiment, a third elastic member 06 is further provided in the vibration damping space 31 , the lower end of the third elastic member 06 abuts against the bottom of the vibration damping space 31 , and the upper end of the third elastic member 06 abuts against the cylinder 02 .

[0082] In this embodiment, the third elastic member 06 acts as an additional elastic support member in the vibration damping space 31, with its lower end abutting against the bottom of the vibration damping space 31 and its upper end abutting against the cylinder 02. It can provide further vibration damping effect when the cylinder 02 moves axially in the vibration damping space 31, thereby improving the adaptability of the vibration damping device 1 to high-intensity vibration, reducing the load of the first elastic member 04, and improving the uniformity of the load of each accessory, making the vibration damping device 1 more stable and less prone to damage.

[0083] like Figure 8 、 9 As shown, in another embodiment, at least two limiting protrusions 22 are evenly provided on the outer wall of the cylinder 02, and the limiting protrusions 22 extend outward along the radial direction of the cylinder 02;

[0084] The inner wall of the vibration-damping space 31 is provided with a reserved sliding groove 33 adapted to the limiting protrusion 22;

[0085] An anti-slip protrusion 34 is provided on the top of the reserved sliding groove 33 .

[0086] In this embodiment, when the cylinder 02 slides axially inside the vibration damping space 31, the limiting protrusion 22 arranged on the outer wall of the cylinder 02 can slide inside the reserved sliding groove 33 arranged on the inner wall of the vibration damping space 31. When the cylinder 02 is about to leave the vibration damping space 31, the anti-slip protrusion 34 arranged on the top of the reserved sliding groove 33 will jam the limiting protrusion 22 to prevent the cylinder 02 from leaving the vibration damping space 31, thereby avoiding the excessive movement of the cylinder 02 inside the vibration damping space 31, improving the stability of the vibration damping device 1, and reducing the damage that may be caused by the cylinder 02 slipping out during transportation.

[0087] like Figure 1 、 8 In one embodiment, a sealing ring 07 is provided at the connection between the top of the vibration-damping sleeve 03 and the cylinder 02 .

[0088] In this embodiment, a sealing ring 07 is also provided at the connection between the top of the vibration-damping sleeve 03 and the cylinder 02, which can effectively prevent dust, dirt or other pollutants from entering the vibration-damping space 31, reducing the increase in friction caused by the accumulation of pollutants, and extending the service life of the vibration-damping device 1. If the vibration-damping space 31 is filled with liquids such as lubricants, these liquids can be prevented from leaking, thereby maintaining smooth sliding between the cylinder 02 and the vibration-damping space 31 and extending the service life.

[0089] The sealing ring 07 can also maintain the sealing state between the vibration-damping sleeve 03 and the cylinder 02, reducing noise and making the vibration-damping device 1 quieter during operation.

[0090] The sealing ring 07 may be a "V"-shaped sealing ring, the vertical section of which is "V"-shaped. It is suitable for a variety of movement modes, can reduce the friction between the vibration-damping sleeve 03 and the cylinder 02, and provide a better sealing effect during dynamic operation.

[0091] As needed, the above technical solutions can be combined to achieve the best technical effect.

[0092] like Figure 10 As shown, the technical solution of the present application also provides a frame-type power foundation, including a force transmission layer 2, a frame layer plate 3, and a vibration-damping layer arranged between the force transmission layer 2 and the frame layer plate 3, and the vibration-damping layer includes a vibration-damping device 1 of a power foundation as described above.

[0093] A power device is arranged above the force transmission layer 2. When the power equipment generates a dynamic load, it will be transmitted to the vibration reduction layer through the force transmission layer 2, wherein the vibration reduction layer is provided with the vibration reduction device 1. The vibration reduction device 1 first eliminates a large amount of longitudinal dynamic loads, and then eliminates the lateral dynamic loads, thereby greatly reducing the vibration and impact received by the frame layer 3, enhancing the reliability and performance of the frame power foundation, extending its service life, and ensuring the stability of the equipment in long-term operation.

[0094] A dynamic calculation may be performed first to determine the number and positions of the vibration damping devices 1 to achieve an optimal arrangement effect.

[0095] The aforementioned vibration damping device 1 can be prefabricated in a factory and connected to the floor of the frame structure through embedded parts on site. It is simple to install, saves space, and is convenient for the arrangement of other equipment. It can shorten the construction period and reduce the construction cost to a certain extent.

[0096] The above description is merely the principle and preferred embodiments of the present application. It should be noted that, for those skilled in the art, implementation methods obtained by appropriately combining the technical solutions disclosed in different embodiments are also included in the technical scope of the present invention. Based on the principles of the present application, several other variations can be made and should also be considered as the scope of protection of the present application.

Claims

1. A vibration reduction device for a power base, characterized in that: It includes a support plate, a cylinder, a vibration-damping sleeve, a first elastic member and a base; The lower portion of the support plate is connected to the cylinder, the upper portion of the base is connected to the vibration-damping sleeve, the interior of the vibration-damping sleeve includes a vibration-damping space, the cylinder extends into the vibration-damping space and can slide axially within the vibration-damping space, the first elastic member is sleeved on the outside of the cylinder and the vibration-damping sleeve and abuts between the support plate and the base; The outer wall of the cylinder is provided with a plurality of strip-shaped protrusions, and the inner wall of the vibration-damping sleeve is provided with strip-shaped grooves adapted to the strip-shaped protrusions.

2. A vibration reduction device for a power base according to claim 1, characterized in that: The strip-shaped protrusions are arranged obliquely along the outer wall of the cylinder, and adjacent strip-shaped protrusions are arranged in parallel.

3. The vibration reduction device for a power base according to claim 1, characterized in that: The base includes a base shell and a buffer disc. A buffer space is provided inside the base shell. The buffer disc is installed in the buffer space. The bottom of the vibration-damping sleeve is connected to the upper surface of the buffer disc.

4. A vibration reduction device for a power foundation according to claim 3, characterized in that: The buffer disc includes a disc body, a central round block, a plurality of second elastic members and round beads, and a plurality of buffer holes are opened on the outer circumference of the disc body; The upper surface of the disc body is connected to the bottom of the vibration-damping sleeve, the central circular block is installed inside the disc body, and a plurality of second elastic members are circumferentially arranged on the outside of the central circular block, one end of each second elastic member is connected to the outer circumferential surface of the central circular block, and the other end extends radially outward from the central circular block and is connected to a round ball, each round ball is correspondingly stuck in one of the buffer holes, and the round ball at least partially extends out of the buffer hole; A buffer gap is reserved between the ball and the inner wall of the buffer space.

5. A vibration reduction device for a power foundation according to claim 3 or 4, characterized in that: A limit retaining ring is further provided on the top of the buffer space, and the limit retaining ring extends inwardly along the radial direction of the base shell, and a connecting opening is provided at the center of the limit retaining ring; The bottom of the vibration-damping sleeve passes through the connecting opening and is connected to the upper surface of the buffer disc.

6. The vibration reduction device for a power foundation according to claim 5, characterized in that: A first retaining ring is provided on the support plate, the first retaining ring protruding downward from the edge of the support plate, and a fixed upper groove is formed between the bottom of the support plate and the first retaining ring; The base shell is provided with a second retaining ring, which protrudes upward from the edge of the limit retaining ring, and a fixed lower groove is formed between the limit retaining ring and the second retaining ring; The upper end of the first elastic member abuts against the fixed upper groove, and the lower end abuts against the fixed lower groove.

7. The vibration reduction device for a power foundation according to claim 1, characterized in that: A third elastic member is further provided in the vibration-damping space, wherein the lower end of the third elastic member abuts against the bottom of the vibration-damping space, and the upper end of the third elastic member abuts against the cylinder.

8. The vibration reduction device for a power foundation according to claim 1, characterized in that: At least two limiting protrusions are evenly arranged on the outer wall of the cylinder, and the limiting protrusions extend outward along the radial direction of the cylinder; The inner wall of the vibration damping space is provided with a reserved sliding groove adapted to the limiting protrusion; An anti-slip protrusion is provided on the top of the reserved sliding groove.

9. A vibration reduction device for a power foundation according to any one of claims 1 to 4, 7 and 8, characterized in that: A sealing ring is provided at the connection between the top of the vibration-damping sleeve and the cylinder.

10. A frame-type power foundation, characterized in that: It comprises a force transmission layer, a frame layer plate, and a vibration reduction layer arranged between the force transmission layer and the frame layer plate, wherein the vibration reduction layer comprises a vibration reduction device of a power foundation as described in any one of claims 1-9.

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