Vibration isolation mounting structure of power equipment

Abstract

The utility model relates to the technical field of electrical equipment installation, and discloses an electrical equipment vibration isolation installation structure which comprises a supporting base and an assembling top base which are horizontally opposite, and a vibration isolation base assembly is arranged in the middle of the interval between the supporting base and the assembling top base. And a plurality of groups of side support damping assemblies are arranged on the interval edge of the supporting base and the assembling top base in the circumferential direction. According to the utility model, by utilizing the overhead support of the support base and the assembly top seat, under the central elastic support of the vibration isolation seat assembly and the edge elastic support of the side support damping assembly, a double-support stress mode taking the vibration isolation seat assembly as a support center and the side support damping assembly as an edge support can be formed; the vibration isolation base assembly plays a role in elastic damping and buffering of the center part, the side supporting damping assembly plays a role in elastic damping and buffering of the edge part, mechanical vibration is dispersed and transmitted to the whole vibration isolation structure, the stress transmission uniformity of the vibration isolation structure is improved, and the damping and buffering effects are better achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of power equipment installation, in particular to a vibration isolation installation structure of power equipment. Background Art

[0002] Power equipment mainly includes power station boilers, steam turbines, gas turbines, water turbines, generators, point motors, transformers, etc. When power equipment is installed and used, especially for large power equipment, in order to reduce the mechanical vibration generated by its own mechanical operation, it is usually necessary to set a vibration isolation structure at its supporting position to reduce the resonance generated by its own mechanical operation, as shown in a vibration isolation installation device for power equipment disclosed in the China Patent Network (public announcement number CN212804059U). When this type of vibration isolation installation structure is used, by setting a shock-absorbing inclined rod rotatably connected to the vibration isolation base on both sides of the left and right sides, and setting a shock-absorbing slide plate slidably connected to the bottom of the vibration isolation base at the bottom of the shock-absorbing inclined rod, and the limit sliders set on the left and right sides of the installation base are slidably connected to the left and right sides of the vibration isolation cavity, it can play a full-dimensional vibration isolation role for the power equipment.

[0003] However, there are still some shortcomings in the above-mentioned public patents and the vibration isolation installation structure adopted in the existing market: the existing shock-absorbing components in the form of left and right, up and down shock absorption and buffering are used to absorb vibrations from the outside. Although it has dual buffering and shock absorption functions in the horizontal and vertical directions, its mechanical shock absorption method is relatively single and can only perform shock absorption work in the horizontal or vertical direction, and it is impossible to evenly disperse and transmit the mechanical vibration to the entire vibration isolation installation component. To this end, the technicians in this field provide a vibration isolation installation structure for power equipment to solve the problems raised in the above background technology. Utility Model Content

[0004] The main purpose of the utility model is to provide a vibration isolation installation structure for electric equipment, which can effectively solve the problem of poor mechanical shock absorption effect of the existing vibration isolation installation structure for electric equipment in the background technology.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a vibration isolation installation structure for electric power equipment, comprising a horizontally opposite support base and an assembly top base;

[0006] A vibration isolation seat assembly is arranged in the middle of the interval between the support base and the assembly top seat, and a plurality of side support shock absorbing assemblies are arranged along the circumferential direction of the interval edge between the support base and the assembly top seat;

[0007] The vibration isolation seat assembly includes a composite rubber seat between a built-in support base and an assembly top seat, an inner cavity is opened in the middle of the core seat of the composite rubber seat, and a shock-absorbing seat is installed inside the inner cavity;

[0008] The side support shock absorbing assembly includes a plurality of groups of pneumatic rods with a built-in support base and an assembled top seat edge. Each group of pneumatic rods has two pneumatic rods, and the two pneumatic rods are symmetrically arranged in forward and reverse directions. Compression springs are sleeved on the outer sides of the telescopic rods of the two pneumatic rods, and a tensioning adjustment mechanism is installed in the middle of the support rods of the two pneumatic rods.

[0009] As a further solution of the utility model: the shock-absorbing seat includes a shock-absorbing spring built into the inner chamber, the bottom end sleeve of the spring seat of the shock-absorbing spring has a bottom support column that presses against the composite rubber seat, and the top end sleeve of the spring seat of the shock-absorbing spring has a top pressure column that presses against the composite rubber seat.

[0010] As a further solution of the utility model: the telescopic ends of the two gas pressure rods facing each other are respectively provided with connecting seats connected with the supporting base and the assembly top seat.

[0011] As a further solution of the utility model: the tensioning adjustment mechanism includes a rotating shaft ring installed on the mating ends of the two pneumatic rods and a knob nut rotatably connected to the rotating shaft ring, the upper and lower ends of the knob nut are screwed with telescopic screws, and the upper and lower ends of the two groups of telescopic screws are respectively provided with top pressure rings that press against the compression spring.

[0012] As a further solution of the utility model: the threads of the two groups of telescopic screws are arranged symmetrically in positive and negative directions relative to the center line of the knob screw sleeve.

[0013] As a further solution of the utility model: a top mounting plate is arranged at the upper end of the support of the assembly top seat, and the top mounting plate is a cross structure.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] 1. When the vibration isolation structure of the power equipment of the utility model is installed and used, by utilizing the overhead support of the support base and the assembly top seat, under the central elastic support of the vibration isolation seat assembly and the edge elastic support of the side support shock absorbing assembly, a double support force-bearing mode with the vibration isolation seat assembly as the support center and the side support shock absorbing assembly as the edge support can be formed. When subjected to external mechanical vibration impact, the vibration isolation seat assembly plays the role of elastic shock absorption and buffering in the center, and the side support shock absorption assembly plays the role of elastic shock absorption and buffering in the edge, which disperses and transmits the mechanical vibration to the entire vibration isolation structure, improves its force transmission uniformity, and better plays the role of shock absorption and buffering.

[0016] 2. When the vibration isolation structure of the power equipment of the utility model is installed and used, by arranging a tensioning adjustment mechanism in the side support shock absorbing assembly, the elastic supporting performance of the side support shock absorbing assembly can be adjusted without disassembly, so as to better adapt to the on-site installation environment and facilitate the subsequent tensioning force adjustment and adaptation work of the side support shock absorbing assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural schematic diagram of a vibration isolation installation structure for electric power equipment according to the utility model;

[0018] Figure 2 This is a structural schematic diagram of a vibration isolation seat assembly in a vibration isolation installation structure for electric power equipment according to the utility model;

[0019] Figure 3 This is a structural schematic diagram of a side support shock-absorbing assembly in a vibration isolation installation structure for electric power equipment according to the utility model;

[0020] Figure 4 The utility model is an exploded schematic diagram of a side support shock absorbing assembly in a vibration isolation installation structure of electric power equipment.

[0021] In the figure: 1. Support base; 2. Assembly top seat; 3. Top mounting plate; 4. Vibration isolation seat assembly; 41. Composite rubber seat; 42. Inner cavity; 43. Shock-absorbing seat; 431. Shock-absorbing spring; 432. Bottom support column; 433. Top pressure column; 5. Side support shock-absorbing assembly; 51. Pneumatic rod; 52. Compression spring; 53. Connecting seat; 54. Knob screw sleeve; 55. Telescopic screw; 56. Top pressure ring; 57. Rotating shaft ring. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0023] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0024] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] Please refer to Figure 1-4 As shown, a vibration isolation installation structure for electric equipment comprises a horizontally opposite supporting base 1 and an assembly top seat 2, a top mounting plate 3 is arranged on the upper end of the support of the assembly top seat 2, and the top mounting plate 3 is a cross structure, by using the top mounting plate 3 as the installation foot of the electric equipment, the mechanical vibration and impact force generated by the operation of the electric equipment can be evenly dispersed and transmitted to the entire vibration isolation structure.

[0026] The spacing edge between the support base 1 and the assembly top seat 2 is provided with a plurality of side support shock absorbing components 5 arranged along the circumference thereof. The side support shock absorbing components 5 include a plurality of gas pressure rods 51 built into the support base 1 and the edge of the assembly top seat 2. The number of each gas pressure rod 51 is two. A tension adjustment mechanism is installed in the middle of the support rods of the two gas pressure rods 51. The tension adjustment mechanism includes a rotating shaft ring 57 installed at the mating ends of the two gas pressure rods 51 and a knob screw sleeve 54 rotatably connected to the rotating shaft ring 57. The upper and lower ends of the knob screw sleeve 54 are both screwed with telescopic screws 55, and the upper and lower ends of the two groups of telescopic screws 55 are respectively provided with top pressure springs 52 that press against each other. Ring 56, the threads of the two groups of telescopic screws 55 are arranged symmetrically in positive and negative directions relative to the center line of the knob nut 54, and the telescopic screws 55 at the upper and lower ends are pushed to telescope and rotate symmetrically by rotating the knob nut 54. The top pressure ring 56 is used to compress or reset the compression springs 52 on the two pneumatic rods 51. By adjusting the tension of the compression spring 52, the elastic supporting performance of the entire side support shock absorbing assembly 5 is adjusted to better adapt to the on-site installation environment. In the subsequent long-term use, when the tension of the compression spring 52 is relaxed, its spring supporting force can also be adjusted to be loose without disassembly.

[0027] A vibration isolation seat assembly 4 is provided in the middle of the interval between the support base 1 and the assembly top seat 2. The vibration isolation seat assembly 4 includes a composite rubber seat 41 built between the support base 1 and the assembly top seat 2. An inner cavity 42 is provided in the middle of the core seat of the composite rubber seat 41, and a shock-absorbing seat 43 is installed inside the inner cavity 42. The shock-absorbing seat 43 includes a shock-absorbing spring 431 built inside the inner cavity 42. The bottom end of the spring seat of the shock-absorbing spring 431 has a bottom support column 432 pressed against the composite rubber seat 41, and the top end of the spring seat of the shock-absorbing spring 431 has a bottom support column 432 pressed against the composite rubber seat 41. The top pressure column 433, based on the bottom support column 432 and the top pressure column 433, connects the shock-absorbing spring 431 with the composite rubber seat 41 to form an integrated shock-absorbing and buffering component. When subjected to mechanical vibration in the vertical direction, the shock-absorbing spring 431 and the composite rubber seat 41 are used for elastic buffering to achieve shock absorption. When subjected to mechanical vibration in the horizontal or inclined direction, the combination of the shock-absorbing spring 431 and the composite rubber seat 41 can not only deform to absorb shock, but also bend and deflect to better disperse and transmit the force.

[0028] The two pneumatic rods 51 are symmetrically arranged in forward and reverse directions, and compression springs 52 are sleeved on the outer sides of the telescopic rods of the two pneumatic rods 51. The telescopic ends of the two pneumatic rods 51 opposite to each other are respectively provided with connecting seats 53 connected to the support base 1 and the assembly top seat 2. By providing a connecting seat 53 connected to the support base 1 and the assembly top seat 2 on the side support shock absorbing assembly 5, the side support shock absorbing assembly 5 can maintain a rotationally connected supporting state with the support base 1 and the assembly top seat 2. When the side support shock absorbing assembly 5 is subjected to mechanical vibration in the vertical direction, the combination of its pneumatic rods 51 and the compression springs 52 is used to play an edge-shaped elastic buffering and shock absorbing work. When the side support shock absorbing assembly 5 is subjected to mechanical vibration in the horizontal or inclined direction, the side support shock absorbing assembly 5 can tilt and rotate and elastically compress and buffer at the same time as the other relative side support shock absorbing assemblies 5 can synchronously tilt and rotate and elastically stretch, so as to evenly transmit the mechanical vibration force for shock absorption, thereby achieving a good integrated shock absorbing effect.

[0029] The working principle of the utility model is as follows: when the vibration isolation structure is used as the elastic buffer component of the power equipment, based on the telescopic pushing combination of the knob screw sleeve 54 and the telescopic screw rod 55, the telescopic screw rods 55 at the upper and lower ends are pushed to telescopically rotate symmetrically by rotating the knob screw sleeve 54, and the compression springs 52 on the two gas pressure rods 51 are compressed or reset by using the top pressure ring 56, and the elastic supporting performance of the entire side support shock absorbing assembly 5 is adjusted by adjusting the tension of the compression spring 52, and then in this way, the elastic supporting performance of the multiple groups of side support shock absorbing assemblies 5 arranged circumferentially are adjusted to better adapt to the on-site installation environment;

[0030] Then, the power equipment and the vibration isolation structure are installed based on the top mounting plate 3, which serves as the mounting foot of the power equipment, and evenly disperses and transmits the mechanical vibration and impact force generated by the operation of the power equipment to the entire vibration isolation structure;

[0031] Furthermore, during the subsequent use of the vibration isolation structure support, when it is subjected to mechanical vibration in the vertical direction, the elastic buffering of the combination of the shock absorbing spring 431 and the composite rubber seat 41 in the vibration isolation seat assembly 4 is used to play a shock absorbing role, and the combination of the pneumatic rod 51 and the compression spring 52 in the side support shock absorbing assembly 5 is used to play an edge-form elastic buffering and shock absorbing work, and when it is subjected to mechanical vibration in the horizontal or inclined direction, the combination of the shock absorbing spring 431 and the composite rubber seat 41 can not only deform to reduce shock, but also bend and deflect to better disperse and transmit the force, and then when the side support shock absorbing assembly 5 is subjected to mechanical vibration in the horizontal or inclined direction, the side support shock absorbing assembly 5 can tilt and rotate and elastically compress and buffer at the same time, while the other relative side support shock absorbing assemblies 5 can synchronously tilt and rotate and elastically stretch, so as to evenly transmit the mechanical vibration force for shock absorption, thereby achieving a good integrated shock absorption effect and evenly transmitting the mechanical vibration force from all directions for shock absorption.

[0032] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A vibration isolation installation structure for electric power equipment, characterized in that: It comprises a horizontally opposed supporting base (1) and an assembly top seat (2); A vibration isolation seat assembly (4) is arranged in the middle of the interval between the support base (1) and the assembly top seat (2), and a plurality of side support shock absorbing assemblies (5) are arranged along the circumference of the interval edge between the support base (1) and the assembly top seat (2); The vibration isolation seat assembly (4) comprises a composite rubber seat (41) between a built-in support base (1) and an assembly top seat (2); an inner cavity (42) is provided in the middle of a core seat of the composite rubber seat (41); and a shock absorbing seat (43) is installed inside the inner cavity (42); The side support shock absorbing assembly (5) comprises a plurality of groups of pneumatic rods (51) built into a support base (1) and an edge of an assembly top base (2), each group of pneumatic rods (51) comprises two pneumatic rods (51), and the two pneumatic rods (51) are arranged symmetrically in forward and reverse directions, compression springs (52) are sleeved on the outer sides of the telescopic rods of the two pneumatic rods (51), and tensioning adjustment mechanisms are installed in the middle of the support rods of the two pneumatic rods (51).

2. The vibration isolation installation structure for electric power equipment according to claim 1, characterized in that: The shock absorbing seat (43) comprises a shock absorbing spring (431) built into the interior of the inner chamber (42); a bottom end sleeve of the spring seat of the shock absorbing spring (431) has a bottom support clamping column (432) for pressing against the composite rubber seat (41); and a top end sleeve of the spring seat of the shock absorbing spring (431) has a top pressure clamping column (433) for pressing against the composite rubber seat (41).

3. The vibration isolation installation structure for electric power equipment according to claim 1, characterized in that: The telescopic ends of the two gas pressure rods (51) facing each other are respectively provided with connecting seats (53) connected to the supporting base (1) and the assembly top seat (2).

4. The vibration isolation installation structure for electric power equipment according to claim 1, characterized in that: The tension adjustment mechanism comprises a rotating shaft ring (57) mounted on the mating ends of two gas pressure rods (51) and a knob screw sleeve (54) rotatably connected to the rotating shaft ring (57), the upper and lower ends of the knob screw sleeve (54) are both screwed with telescopic screws (55), and the upper and lower ends of the two sets of telescopic screws (55) are respectively provided with a top pressure ring (56) that presses against the compression spring (52).

5. The vibration isolation installation structure for electric power equipment according to claim 4, characterized in that: The threads of the two groups of telescopic screws (55) are arranged symmetrically in forward and reverse directions relative to the midline of the knob screw sleeve (54).

6. The vibration isolation installation structure for electric power equipment according to claim 1, characterized in that: A top mounting plate (3) is provided at the upper end of the support of the assembly top seat (2), and the top mounting plate (3) is a cross structure.

Images