Rack for vibration reduction

Abstract

The invention discloses a rack for vibration reduction. The rack comprises a rack body, a rubber spring, a lifting device and a casting. According to the rack for vibration reduction, the influence of an air source factor in the environment is fully considered, the rubber spring is adopted for vibration reduction of the rack for vibration reduction, and an air spring does not need to be debugged; in order to achieve the technical effect that the rubber spring can be adjusted up and down, the lifting device is arranged according to the technical scheme, the lifting device is fixed to the rack and used for supporting the rubber spring and adjusting the rubber spring up and down, and the rubber spring lifting device has the advantages of being convenient to operate and stable in lifting and is suitable for application and popularization.

Description

Technical Field

[0001] The invention discloses a frame for vibration reduction. Background Art

[0002] An electron microscope is an electronic optical instrument, among which a scanning electron microscope is a commonly used microscopic analysis instrument that uses various physical signals stimulated by a focused electron beam when scanning the sample surface to modulate the image. It uses a focused electron beam to scan the sample surface line by line. The electron beam bombards the sample surface to generate secondary electrons or backscattered electrons. The efficiency of the generation is related to the surface morphology or material of the sample. The secondary electrons or backscattered electrons generated on the sample surface are collected, and the position of the electron beam scanning on the sample surface and the number of secondary electrons or backscattered electrons generated are expressed in the form of a two-dimensional image, that is, the secondary electron image or backscattered electron image of the electron microscope is obtained. The resolution of the scanning electron microscope image can reach the nanometer level or even better than 1.0 nanometers, playing an irreplaceable role in the fields of new materials, new energy, and medical research.

[0003] Electron microscopes need to observe samples inside their sample chambers in a high vacuum state, so a vacuum acquisition system is a must-have for electron microscopes. However, in the specific application process, there will always be various vibrations in the vacuum acquisition system, which will affect the final imaging of the electron microscope and destroy the observation of the electron microscope sample. Moreover, with the development of optoelectronic technology, the types of optoelectronic products have gradually increased. Among them, photoelectric mirrors are often used for transport observation, shooting aiming, etc. because they have the characteristics of observation and aiming. During use, the photoelectric mirror needs to be tightly connected with the carrier, gun body and other components, and the connection between the carrier, gun body and photoelectric mirror is a rigid connection. The vibration and impact that will inevitably occur during operation will directly act on the photoelectric mirror body, which is easy to cause damage to its internal optical parts and electronic devices. Therefore, it is also necessary to add a buffer device at the connection between the carrier, gun body and photoelectric mirror for vibration reduction.

[0004] Since mechanical vibration and impact have a great impact on the image quality and resolution after scanning electron microscope imaging, there are two ways, active shock absorption and passive shock absorption. At present, the scanning electron microscope in the prior art mainly relies on an air flotation device as a shock absorption device. The device generally places the scanning electron microscope body on a support, and installs multiple air flotation devices between the bottom of the scanning electron microscope body and the top of the support. Generally, they are installed at the four corners of the bottom of the scanning electron microscope body. During specific use, the device has a strong ability to weaken the vibration component perpendicular to the ground, but has a small effect on weakening the vibration component parallel to the ground. Some passive shock absorption platforms in the prior art use air springs or vibration isolation rubber pads or coil springs for shock absorption. Air springs need to be driven by an air source and are affected by many environmental factors and cannot achieve a good shock absorption effect. After the vibration isolation rubber and coil spring are fixed on the shock absorption platform, there is a defect that they cannot be adjusted up and down.

[0005] Based on the problems existing in the prior art, the purpose of the present invention is to provide a vibration reduction device which is less affected by air source environmental factors and is convenient for up and down adjustment. Summary of the invention

[0006] Based on the above purpose, the present invention first provides a frame for vibration reduction, the frame comprising: a frame body, a rubber spring, a lifting device and a casting, wherein The rubber spring is located on the frame body and connected to the frame body through a hole located on the frame body; The casting is provided with a support column, which is connected to a rubber spring and plays a role of force support.

[0007] A lifting device is arranged below the rubber spring, and the lifting device is fixed on the frame body.

[0008] In a specific embodiment of the present invention, the lifting device includes a support frame base frame, a support frame, a steel wire rope, an air-floating pressure plate and an adjusting nut.

[0009] In a preferred embodiment, the air-floating pressure plate is located below the rubber spring, the lower part of the air-floating pressure plate is connected to the support frame, the support frame base frame and the support frame are respectively provided with corresponding circular holes, and the support frame base frame, the support frame and the bottom end of the wire rope are connected from bottom to top in sequence by adjusting nuts passing through the corresponding circular holes.

[0010] In a specific embodiment of the present invention, the number of holes on the frame body is 3, and the centers of the 3 holes are equidistant and connected to form an isosceles triangle.

[0011] In a specific embodiment of the present invention, the three holes and their corresponding rubber springs are fixedly connected by argon arc full welding.

[0012] In a specific embodiment of the present invention, a fixing nut is also provided on the casting.

[0013] In a specific embodiment of the present invention, a bracket is provided on the frame body, and the fixing nut is connected to the bracket.

[0014] In a specific embodiment of the present invention, the lower portion of the bracket is provided with supporting feet.

[0015] In a preferred embodiment, the bracket is provided with a locking nut and a supporting washer, and the locking nut is a C-RM30 locking nut.

[0016] In a specific embodiment of the present invention, a base is provided below the frame body to provide stability.

[0017] The process of a specific embodiment of the frame for vibration reduction of the present invention is as follows: The technical solution of the present invention adopts square steel to design a frame to play a supporting role. Since the present invention adopts rubber springs, there is no need to debug the air springs, which saves operation time. Three holes for placing rubber springs are reserved on the main body of the frame, the centers of the holes are connected to form an isosceles triangle, and lifting devices are respectively provided on the three rubber springs; The length of each wire rope in the three lifting devices is set to be consistent; When the lifting device is rising or falling, the wire rope is adjusted by rotating the adjusting nut. The air-floating pressure-bearing plate is located below the rubber spring. The lower part of the air-floating pressure-bearing plate is connected to the support frame to ensure smooth up and down movement during the lifting process. The flexible characteristics of the wire rope ensure that the lifting platform operates smoothly during the up and down lifting process.

[0018] When the weight of the object is too heavy, the rubber spring is compressed and the height decreases. The rise and fall of the rubber spring can be adjusted manually.

[0019] Compared with the prior art, the present invention has the following beneficial effects: The technical solution of the present invention fully considers the influence of air source factors in the environment, the frame used for vibration reduction adopts rubber springs for vibration reduction, and there is no need to debug the air spring, which has the characteristics of simple operation.

[0020] In order to achieve the technical effect that the rubber spring can be adjusted up and down, the technical solution of the present invention designs a lifting device that can be adjusted up and down. The lifting device is fixed on the frame and is used to support the rubber spring and adjust it up and down, and has the characteristic of easy operation.

[0021] During the lifting process of the lifting device, due to the holes in which the rubber springs can be placed, the centers of the holes are connected to form an isosceles triangle, and the lengths of each steel wire rope in the three lifting devices are consistent. During the rising or falling process of the lifting device, the steel wire rope is adjusted by rotating the adjusting nut, and the air-floating pressure-bearing plate is located below the rubber spring. The lower part of the air-floating pressure-bearing plate is connected to the support frame to ensure smooth up and down movement during the lifting process. Through the flexible characteristics of the steel wire rope, it is ensured that the lifting platform will not tilt due to uneven gravity distribution on the lifting device during the up and down lifting process. The present invention can maintain the smooth lifting of the lifting device. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the frame used for vibration reduction of the present invention; Figure 2 It is a front view of a frame for vibration reduction of the present invention; Figure 3 It is a rear view of the frame used for vibration reduction of the present invention; Figure 4 A top view of a frame for vibration reduction of the present invention; Figure 5 It is a structural schematic diagram of the lifting device; Figure 6 It is a front view of the lifting device; Figure 7 is a side view of the lifting device; In the figure: 1-frame body, 2-rubber spring, 3-support foot, 4-support column, 5-lifting device, 51-support frame base, 52-support frame, 53-wire rope, 54-air floating pressure plate, 55-adjusting nut, 6-locking nut, 7-support gasket, 8-casting, 9-fixing nut, 10-base, 11-bracket. DETAILED DESCRIPTION

[0023] The present invention will be further described below in conjunction with specific embodiments, and the advantages and features of the present invention will become clearer as the description proceeds. However, these embodiments are merely exemplary and do not constitute any limitation on the scope of protection defined by the claims of the present invention.

[0024] In conjunction with the accompanying drawings of the present invention, Figures 1 to 4 As shown, in a specific embodiment of a frame for vibration reduction provided by the present invention, the frame includes: a frame body 1, a rubber spring 2, a lifting device 5 and a casting 8, wherein The rubber spring 2 is located on the frame body 1 and is connected to the frame body 1 through a hole located on the frame body 1; The casting 8 is provided with a support column 4, and the support column 4 is connected to the rubber spring 2, and plays a role of force support.

[0025] A lifting device 5 is provided below the rubber spring 2 , and the lifting device 5 is fixed on the frame body 1 .

[0026] Reference Figures 5 to 7 In a specific embodiment of the present invention, the lifting device 5 includes a support frame base 51, a support frame 52, a steel wire rope 53, an air-floating pressure plate 54 and an adjusting nut 55.

[0027] In a preferred embodiment, the air-floating pressure-bearing plate 54 is located below the rubber spring 2, and the lower part of the air-floating pressure-bearing plate 54 is connected to the support frame 52. The support frame base frame 51 and the support frame 52 are respectively provided with corresponding circular holes, and the bottom ends of the support frame base frame 51, the support frame 52 and the wire rope 53 are connected from bottom to top in sequence by passing through the corresponding circular holes through the adjusting nuts 55.

[0028] In a preferred embodiment, the support frame base frame 51 is in a herringbone shape, and the number of the support frames 52 is three.

[0029] In a specific embodiment of the present invention, the number of holes on the frame body 1 is 3, and the distances between the centers of the 3 holes are equal and connected to form an isosceles triangle.

[0030] In a specific embodiment of the present invention, the three holes and their corresponding rubber springs 2 are fixedly connected by argon arc full welding.

[0031] In a specific embodiment of the present invention, a fixing nut 9 is further provided on the casting 8 .

[0032] In a specific embodiment of the present invention, a bracket 11 is provided on the frame body 1 , and the fixing nut 9 is connected to the bracket 11 .

[0033] In a specific embodiment of the present invention, a supporting foot 3 is provided at the lower portion of the bracket 11 .

[0034] In a preferred embodiment, the bracket 11 is provided with a locking nut 6 and a supporting washer 7. The locking nut 6 is a C-RM30 locking nut 6.

[0035] In a specific embodiment of the present invention, a base 10 is provided below the frame body 1 to provide stability.

[0036] The process of a specific embodiment of the frame for vibration reduction of the present invention is as follows: The present invention adopts square steel to design a frame to play a supporting role. Since the present invention adopts rubber spring 2, there is no need to debug the air spring, which saves operation time. Three holes are reserved on the frame body 1 for placing rubber springs 2, the centers of the holes are connected to form an isosceles triangle, and lifting devices 5 are respectively provided on the three rubber springs 2; The length of each steel wire rope in the three lifting devices 5 is set to be consistent; When the lifting device 5 is rising or falling, the wire rope 53 is adjusted by rotating the adjusting nut 55. The air-floating pressure-bearing plate 54 is located below the rubber spring 4. The lower part of the air-floating pressure-bearing plate 54 is connected to the support frame 52 to ensure smooth up and down movement during the lifting process. The flexible characteristics of the wire rope 53 ensure that the lifting platform operates smoothly during the up and down lifting process.

[0037] When the weight of the heavy object is too heavy, the rubber spring 2 is compressed and the height is reduced. The lifting and lowering of the rubber spring 2 can be adjusted manually.

[0038] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it 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 an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] It should be understood that the above specific embodiments of the present invention are only used to illustrate or explain the principles of the present invention, and do not constitute a limitation of the present invention. Therefore, any modifications, equivalent substitutions, improvements, etc. made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. In addition, the appended claims of the present invention are intended to cover all changes and modifications that fall within the scope and boundaries of the appended claims, or the equivalent forms of such scope and boundaries.

Claims

1. A frame for vibration reduction, characterized in that: The frame includes: a frame body, a rubber spring, a lifting device and a casting, wherein The rubber spring is located on the frame body and connected to the frame body through a hole located on the frame body; The casting is provided with a support column, and the support column is connected to the rubber spring; A lifting device is arranged below the rubber spring, and the lifting device is fixed on the frame body.

2. The frame for vibration reduction according to claim 1, characterized in that: The lifting device comprises a support frame base frame, a support frame, a steel wire rope, an air-floating pressure-bearing plate and an adjusting nut.

3. The frame for vibration reduction according to claim 2, characterized in that: The air-floating pressure-bearing plate is located below the rubber spring, and the lower part of the air-floating pressure-bearing plate is connected to the support frame. The support frame base frame and the support frame are respectively provided with corresponding circular holes. The support frame base frame, the support frame and the bottom end of the wire rope are connected from bottom to top in sequence by adjusting nuts passing through the corresponding circular holes.

4. The frame for vibration reduction according to claim 1, characterized in that: The number of holes on the frame body is 3, and the distances between the centers of the 3 holes are equal and connected to form an isosceles triangle.

5. According to the frame for vibration reduction of claim 4, the three holes and their corresponding rubber springs are fixedly connected by argon arc full welding.

6. The frame for vibration reduction according to claim 1, characterized in that: The casting is also provided with a fixing nut.

7. The frame for vibration reduction according to claim 6, characterized in that: A bracket is arranged on the frame body, and the fixing nut is connected to the bracket.

8. The frame for vibration reduction according to claim 7, characterized in that: The lower part of the bracket is provided with supporting feet.

9. The frame for vibration reduction according to claim 7, characterized in that: The bracket is provided with a locking nut and a supporting gasket.

10. The frame for vibration reduction according to claim 1, characterized in that: A base is provided below the frame body.

Images