A decanter centrifuge anti-inclination device

Abstract

The utility model relates to the technical field of horizontal centrifuge, specifically disclose a horizontal screw centrifuge anti -tilt device is located vibration isolator side, including fixed installation's U type board, U type board's U type opening is down, and the transverse plate is fixed in the middle part of U type cavity, and the coaxial reserved hole is all set up in U type board top and transverse plate top, centrifuge base is located U type board top, and the base bottom is fixed with the bolt of inserting reserved hole, and the clearance fit between bolt and reserved hole. The scheme aims at solving the problem of the safety hidden danger of lack of effective support when the horizontal screw centrifuge is easy to list, slip under the extreme working condition and the vibration isolator failure.

Description

Technical Field

[0001] This utility model relates to the field of horizontal centrifuge technology, specifically to an anti-tilting device for a horizontal screw centrifuge. Background Technology

[0002] Horizontal decanter centrifuges, as important industrial separation equipment, are widely used in chemical, pharmaceutical, and food processing industries. In traditional installation methods, the centrifuge is connected to the mounting base via vibration isolators. This structural design primarily considers two functional requirements: first, to absorb vibrations during equipment operation through elastic elements, reducing the dynamic load transmitted to the base; and second, to withstand the static load generated by the equipment's own weight. However, this conventional vibration-isolation installation method has revealed serious safety hazards in practical applications.

[0003] First, in extreme conditions such as earthquakes, the mounting base may experience significant shaking. Since traditional vibration isolators are primarily designed to absorb vertical vibration energy, their lateral stiffness is relatively weak. When the lateral displacement exceeds the design threshold, the isolator cannot provide sufficient restoring force to control the equipment's attitude, easily leading to the centrifuge tilting or even overturning. This situation is particularly dangerous in the handling of hazardous materials such as chemicals, potentially causing serious secondary disasters.

[0004] Secondly, vibration isolators, as mechanical components, are susceptible to failure due to aging and fatigue. When a single vibration isolator fails, one side of the centrifuge may suddenly sink. Due to the lack of effective fall protection measures, the equipment may slide along the tilted direction and eventually detach from its mounting base. Such an accident would not only damage the valuable centrifuge itself but could also destroy supporting piping, electrical systems, and other auxiliary facilities, resulting in significant economic losses.

[0005] In the existing technology, the solutions to the above problems mainly include two types: one is to enhance the lateral stiffness of the vibration isolator itself, but this will sacrifice the vibration isolation effect; the other is to install guardrails around the equipment. This method can only limit the displacement range of the equipment and cannot fundamentally solve the tilting problem.

[0006] Furthermore, with the increasing size and weight of modern industrial equipment, horizontal screw centrifuges are becoming more prominent, making the issue of preventing tipping more critical. This is especially true in earthquake-prone areas, where the safety hazards of traditional vibration isolation installation methods are more pronounced. Therefore, there is an urgent need to develop a new type of anti-tilting device that can effectively prevent centrifuge tilting and slippage while maintaining good vibration isolation performance, thereby improving the safety and reliability of equipment operation. Utility Model Content

[0007] The present invention aims to provide an anti-tilting device for horizontal screw centrifuges, which solves the safety hazards of horizontal screw centrifuges being prone to tilting and slipping under extreme working conditions, as well as the lack of effective support when the vibration isolator fails.

[0008] To achieve the above objectives, the present invention adopts the following technical solution:

[0009] An anti-tilting device for a horizontal screw centrifuge, located next to a vibration isolator, includes a fixedly installed U-shaped plate with the U-shaped opening facing downwards and a horizontal plate fixed in the middle of the U-shaped cavity. Coaxial reserved holes are provided on the top of the U-shaped plate and the horizontal plate. The centrifuge base is located above the U-shaped plate, and bolts inserted into the reserved holes are fixed at the bottom of the base, with the bolts and reserved holes having clearance fit.

[0010] The principle and advantages of this solution are as follows: This solution uses a double-layer structure consisting of a U-shaped plate and a horizontal plate, along with bolts installed with gaps to form an anti-tilting mechanism: During normal operation, the bolts and the reserved holes maintain a gap fit without interfering with the vibration isolation function; when the centrifuge tilts abnormally, the tilted bolts will be immediately locked by the reserved holes in the upper and lower layers to form a mechanical stop. At this time, the U-shaped plate and the horizontal plate jointly bear the lateral load, reducing or even avoiding a large tilt of the centrifuge base, thereby effectively preventing the equipment from tipping over or sliding.

[0011] Preferably, as an improvement, a reinforcing sealing plate is fixedly attached to the side end face of the U-shaped plate. This design, with the U-shaped plate, horizontal plate, and reinforcing sealing plate forming a three-dimensional support system, provides strong impact resistance and reliable support even if a single vibration isolator fails.

[0012] Preferably, as an improvement, the reinforcing sealing plate is welded to the side end face of the U-shaped plate.

[0013] Preferably, as an improvement, the U-shaped opening end face of the U-shaped plate is fixed to the bottom of the vibration isolator on the same pad to reduce installation costs.

[0014] Preferably, as an improvement, the bolt head is a non-circular head, and the base is provided with a countersunk hole. The upper shallow hole in the countersunk hole is in concave-convex fit with the non-circular head of the bolt. After the non-circular head is placed into the countersunk hole, the bolt cannot be rotated. A lock nut is threaded onto the bolt, and the lock nut is used to lock the bolt onto the base.

[0015] Preferably, as an improvement, the non-circular head of the bolt is a hexagonal head, and the bolt is formed as an external hexagonal bolt to reduce procurement costs. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of an embodiment of the present utility model.

[0017] Figure 2 for Figure 1 A partial front view after assembly with vibration isolators, pads, and bases.

[0018] Figure 3This is a three-dimensional exploded view of the structural relationship between the base, bolts and locking nuts in an embodiment of this utility model.

[0019] Figure 4 for Figure 1 Right view after assembly with vibration isolator, pad, base, and centrifuge (two anti-tilt devices for the horizontal screw centrifuge can be seen in the figure).

[0020] The reference numerals in the accompanying drawings of the instruction manual include: pad 1, U-shaped plate 2, reserved hole 21, horizontal plate 3, reinforcing sealing plate 4, base 5, countersunk hole 51, bolt 6, lock nut 7, vibration isolator 8, centrifuge 100. Detailed Implementation

[0021] The following detailed description illustrates the specific implementation method:

[0022] The basic implementation examples are as follows: Figures 1 to 4 As shown.

[0023] An anti-tilting device for a horizontal screw centrifuge is located next to a vibration isolator 8 and includes a U-shaped plate 2 fixed to a bottom pad 1 of the vibration isolator 8 (the bottom of the vibration isolator 8 is fixedly connected to the pad 1). The U-shaped opening of the U-shaped plate 2 faces downward and is directly opposite the upper surface of the pad 1.

[0024] A horizontal plate 3 is welded in the middle of the U-shaped cavity. The horizontal plate 3 is located in the range of 1 / 3 to 3 / 4 of the height of the U-shaped cavity. Coaxial reserved holes 21 are opened on the top of the U-shaped plate 2 and the horizontal plate 3. The centrifuge 100 base 5 is located above the U-shaped plate 2. The bottom of the base 5 is fixed with bolts 6 inserted into the reserved holes 21. The bolts 6 and the reserved holes 21 are clearance-fitted.

[0025] A reinforcing sealing plate 4 is welded to the side end face of the U-shaped plate 2.

[0026] The bolt 6 has a non-circular head. The base 5 has a countersunk hole 51. The upper shallow hole in the countersunk hole 51 fits into the non-circular head of the bolt 6. In this embodiment, the non-circular head of the bolt 6 is hexagonal, and the bolt 6 forms an external hexagonal bolt 6. After the non-circular head is inserted into the countersunk hole 51, the bolt 6 cannot be rotated. A lock nut 7 is threaded onto the bolt 6, which is used to lock the bolt 6 onto the base 5.

[0027] In this embodiment, the U-shaped plate 2, the horizontal plate 3, and the reinforcing sealing plate 4 are first welded and fixed to one end of the pad 1 to form an anti-tilting device. After the pad 1 and the vibration isolator 8 are installed and fixed, the bolt 6 is inserted into the reserved holes 21 of the U-shaped plate 2 and the horizontal plate 3 through the pre-drilled countersunk holes 51 on the base 5. Finally, the locking nut 7 is tightened and pressed against the bottom of the base 5 to complete the structural installation.

[0028] In this embodiment, a double-layer structure consisting of a U-shaped plate 2 and a horizontal plate 3, along with bolts 6 installed with gaps, forms an anti-tilting mechanism: during normal operation, the bolts 6 and the reserved holes 21 maintain a gap fit without interfering with the vibration isolation function; when the centrifuge 100 tilts abnormally, the tilted bolts 6 will be immediately jammed by the reserved holes 21 of the upper and lower layers to form a mechanical stop. At this time, the U-shaped plate 2 and the horizontal plate 3 jointly bear the lateral load, reducing or even avoiding a large tilt of the centrifuge 100 base 5, thereby effectively preventing the equipment from tipping over or sliding.

[0029] In other words, by adding an anti-tilt device next to the vibration isolator 8, this embodiment effectively enhances the anti-tilt capability of the centrifuge 100, greatly improving the centrifuge 100's ability to withstand large-scale shaking such as earthquakes after installation.

[0030] The longer external hex bolt 6 is fixed on the base 5. When a single vibration isolator 8 is damaged and cannot support the centrifuge 100, the external hex bolt 6 can support the centrifuge 100 to a certain extent and prevent the centrifuge 100 from sliding sideways.

[0031] The above descriptions are merely embodiments of this utility model. Commonly known technical solutions and / or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solution of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. An anti-tilting device for a horizontal screw centrifuge, characterized in that: Located next to the vibration isolator, there is a fixed U-shaped plate with the U-shaped opening facing downwards and a horizontal plate fixed in the middle of the U-shaped cavity. The top of the U-shaped plate and the horizontal plate are both provided with coaxial reserved holes. The centrifuge base is located above the U-shaped plate, and the bottom of the base is fixed with bolts that are inserted into the reserved holes. The bolts are clearance-fitted with the reserved holes.

2. The anti-tilting device for a horizontal screw centrifuge according to claim 1, characterized in that: A reinforcing sealing plate is fixed to the side end face of the U-shaped plate.

3. The anti-tilting device for a horizontal screw centrifuge according to claim 2, characterized in that: The reinforcing sealing plate is welded to the side end face of the U-shaped plate.

4. The anti-tilting device for a horizontal screw centrifuge according to claim 1, characterized in that: The U-shaped opening end face of the U-shaped plate is fixed to the bottom of the vibration isolator on the same pad.

5. An anti-tilting device for a horizontal screw centrifuge according to any one of claims 1-4, characterized in that: The bolt has a non-circular head and a countersunk hole on the base. The upper shallow hole in the countersunk hole fits into the non-circular head of the bolt. After the non-circular head is placed into the countersunk hole, the bolt cannot be rotated. A lock nut is threaded onto the bolt and is used to lock the bolt onto the base.

6. The anti-tilting device for a horizontal screw centrifuge according to claim 5, characterized in that: The non-circular head of the bolt is a hexagonal head, and the bolt is formed as an external hexagonal bolt.

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