Rotary drum dismounting device for centrifugal machine and centrifugal machine

Abstract

The utility model discloses a rotary drum dismounting device for a centrifugal machine and the centrifugal machine. The rotary drum dismounting device for the centrifugal machine comprises a bottom plate structure and a pinch bar structure detachably connected with the bottom plate structure. The pinch bar structure comprises a connecting rod partially contained in the centrifugal machine and a change-over rod located above the connecting rod, the change-over rod is connected with the connecting rod, and a limiting structure is arranged on the change-over rod. A rigid dismounting device is used for assisting a hydraulic device in directly compressing the blades, the bottom plate is in direct contact with the rotary drum, direct acting force is applied to the rotary drum and the rotary drum cover for compression, a gap is formed in the position of the locking ring, and therefore the rotary drum is separated from the locking ring; and elastic potential energy loss caused by deformation of the blade distributor is avoided.

Description

Technical Field

[0001] This utility model relates to a disassembly device for a centrifuge in light industry, and more particularly to a drum disassembly device for a centrifuge and a centrifuge. Background Technology

[0002] In the field of light industrial machinery and equipment, it is often necessary to disassemble the centrifuge drum. For example... Figure 1 As shown, the centrifuge includes a drum and a drum cover. The drum cover houses a blade assembly and a blade distributor. A locking ring is located between the drum cover and the upper end of the drum. Traditionally, when disassembling the drum, a screw with a hexagonal nut is connected to the blade distributor. A hydraulic device is used between the drum cover and the blade distributor. The screw compresses a large number of blades inside, eliminating the elastic expansion stress of the blades and facilitating the removal of the locking ring that secures the drum cover.

[0003] However, the vane distributor is prone to deformation during this process. When the hydraulic system is pressurized, the force generated by the hydraulic system acts on the vane distributor through the screw. However, due to the deformation of the vane distributor causing pressure loss, the pressure is insufficient to fully compress the vanes. Therefore, the pressure acting on the locking ring and the resulting friction cannot be completely eliminated. Consequently, the locking ring remains difficult to disassemble, or even impossible to loosen. Each disassembly is difficult, time-consuming, and easily damages the vanes. Utility Model Content

[0004] To address the aforementioned technical problems, this utility model provides a centrifuge drum disassembly device and a centrifuge, thereby solving the problem of blade distributor deformation affecting disassembly.

[0005] This utility model provides a centrifuge drum disassembly device, including a base plate structure and a pry bar structure detachably connected to the base plate structure; the pry bar structure includes a connecting rod partially housed inside the centrifuge and a conversion rod located above the connecting rod, the conversion rod being connected to the connecting rod, wherein the conversion rod is provided with a limiting structure.

[0006] In one alternative embodiment, the base plate structure is used to support the centrifuge drum, the pry bar structure is at least partially located above the centrifuge drum cover, and the limiting structure and the drum cover directly form a receiving space for accommodating a hydraulic device.

[0007] In one alternative embodiment, the base plate structure has a threaded hole in the middle, and the connecting rod is threadedly connected to the threaded hole.

[0008] In one alternative embodiment, the connecting rod is a screw or lead screw.

[0009] In one optional embodiment, the end of the conversion rod connected to the connecting rod is provided with an internal thread, and the end of the conversion rod connected to the limiting structure is provided with an external thread; the limiting structure and the conversion rod are threadedly connected, and the connecting rod and the conversion rod are threadedly connected.

[0010] In one alternative embodiment, the limiting structure is a nut.

[0011] In one optional embodiment, the limiting structure is fixed to the conversion rod, or the limiting structure and the conversion rod are an integral structure.

[0012] In one alternative embodiment, the base plate structure is provided with a receiving groove that is adapted to the bottom of the centrifuge drum.

[0013] This utility model also provides a centrifuge, which includes a drum and a drum cover. The drum cover is provided with a blade assembly and a blade distributor. A locking ring is provided between the drum cover and the upper end of the drum. The bottom of the drum is provided with a base plate structure. The base plate structure is connected to a pry bar structure. The pry bar structure passes through the center of the centrifuge and extends to the top of the drum cover. The pry bar structure is provided with a limiting structure. By using a hydraulic device to lift the pry bar structure upward, a gap can be created between the locking ring and the drum.

[0014] In one alternative embodiment, the pry bar structure includes a connecting rod partially housed within the centrifuge and a conversion rod located above the connecting rod, the conversion rod being connected to the connecting rod.

[0015] This invention utilizes a rigid disassembly device to assist a hydraulic device in directly compressing the blades. The base plate directly contacts the drum, thereby applying direct force to the drum and drum cover to compress them and create a gap at the locking ring position, thus separating the drum from the locking ring. This avoids the loss of elastic potential energy caused by deformation of the blade distributor. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the centrifuge and drum disassembly device in the prior art.

[0017] Figure 2 This is a schematic diagram of the structure of the drum disassembly device in one embodiment of the present invention.

[0018] Figure 3 This is a schematic diagram of the centrifuge and drum disassembly device in one embodiment of the present invention.

[0019] Figure label:

[0020] 1. Base plate structure; 2. Connecting rod; 3. Converting rod; 4. Hydraulic device; 5. Blade distributor; 6. Blade group; 7. Drum cover; 8. Locking ring; 9. Drum; 10. Limiting structure; 11. Pry bar structure; 12. Threaded hole; 13. Accommodating groove. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0022] It should be noted that the following embodiments can be combined where there is no conflict.

[0023] Please see Figure 2 As shown, this utility model provides a centrifuge drum disassembly device, including multiple rigid structural components; specifically, a base plate structure 1 and a pry bar structure 11. The difference between this utility model and the prior art lies in that: the drum cover 7 and the drum 9 are compressed in the height direction, thereby compressing the blade assembly 6 inside the drum 9, eliminating stress on the locking ring 8, facilitating the separation of the drum 9 from the locking ring 8, and making disassembly and assembly convenient.

[0024] The base plate structure 1 and the pry bar structure 11 are detachably connected. The pry bar structure 11 includes a connecting rod 2 partially housed within the centrifuge and a conversion rod 3 located above the connecting rod 2, the conversion rod 3 being connected to the connecting rod 2. The conversion rod 3 is provided with a limiting structure 10.

[0025] In some embodiments, the base plate structure 1 has a threaded hole 12 in the middle, and the connecting rod 2 is threadedly connected to the threaded hole 12. In other embodiments, the base plate structure 1 and the connecting rod 2 can also be replaced by a snap-fit ​​connection, such as a snap-fit ​​between a protrusion and a groove.

[0026] In some embodiments, the connecting rod 2 is a screw; in other embodiments, the connecting rod 2 is a lead screw.

[0027] Furthermore, in the embodiment of the threaded connection, the end of the conversion rod 3 connected to the connecting rod 2 is provided with an internal thread, and the end of the conversion rod 3 connected to the limiting structure 10 is provided with an external thread; the limiting structure 10 and the conversion rod 3 are threadedly connected, and the connecting rod 2 and the conversion rod 3 are threadedly connected.

[0028] The limiting structure 10 is made of nuts. For example, a hexagonal nut is used to connect with the conversion rod 3 by thread. The position of the hexagonal nut can be adjusted to adapt to the installation of the hydraulic device 4.

[0029] In some embodiments, the limiting structure 10 is fixed to the conversion rod 3, for example, a nut or other fixing block can be welded to the conversion rod 3. In other embodiments, the limiting structure 10 and the conversion rod 3 are an integral structure; for example, the conversion rod 3 and the limiting structure 10 are integrally formed.

[0030] Furthermore, it can be combined with Figure 2 and Figure 3 As shown, the base plate structure 1 is placed on a platform or ground to support the centrifuge drum 9. The pry bar structure 11 is at least partially located above the centrifuge drum cover 7. The limiting structure 10 and the drum cover 7 directly form a receiving space for accommodating the hydraulic device 4. The receiving space can be referenced. Figure 3 The hydraulic device 4 is installed in the position space on the conversion rod 3.

[0031] For example, the base plate structure 1 has a receiving groove 13 that is adapted to the bottom of the centrifuge drum 9; thus, when the hydraulic device 4 lifts the pry bar structure 11, the drum 9 generates an upward force. In other embodiments, the base plate structure 1 can also be a rigid plate, such as a steel plate. The steel plate has a threaded hole 12 for connecting the connecting rod 2.

[0032] As some variations of this utility model, the base plate structure 1 can also be fixedly connected to the connecting rod 2, such as by welding. The conversion rod 3 is threadedly connected to the connecting rod 2.

[0033] When disassembling the centrifuge, place the base plate structure 1 on a flat ground or platform, and position the centrifuge drum 9 in the center of the base plate structure 1. Then, pass the connecting rod 2 through the center of the drum 9 and install it into the threaded hole 12 of the base plate structure 1 and tighten it. Next, install the conversion rod 3 on the connecting rod 2 and fix it in place. The axis of the vertical part of the connecting rod 2 passing through the drum 9 and connecting to the base plate structure 1 is aligned with the axis of rotation of the drum 9. Place the hydraulic device 4 on the conversion rod 3 and lock it in place. Increase the pressure of the hydraulic device 4 to approximately 400 ABR. By directly lifting the base plate structure 1, the bottom of the drum 9 is raised, compressing the overall height of the drum 9 and the drum cover 7. This compresses the blades inside the centrifuge, creating a gap between the locking ring 8 and the drum cover 7 (e.g., ...). Figure 3As shown, by reducing the friction and resistance between the locking ring 8 and the drum cover 7, the locking ring 8 can be easily disassembled. This invention utilizes the principle that the drum cover 7 and the bottom of the drum 9 have a rigid structure that is not easily deformed, thus directly eliminating the work consumed by the deformation of the blade distributor 5, thereby achieving a convenient method for disassembling the centrifuge drum 9.

[0034] This invention enables rapid assembly and disassembly, is easy to operate, and is highly safe, eliminating safety hazards such as tipping over. It also prevents force loss caused by deformation of the blade distributor 5, thus increasing the service life of the centrifuge.

[0035] This utility model also provides a centrifuge, which includes a drum 9 and a drum cover 7. The drum cover 7 is provided with a blade assembly 6 and a blade distributor 5. A locking ring 8 is provided between the upper end of the drum cover 7 and the drum 9. The bottom of the drum 9 is provided with a base plate structure 1. The base plate structure 1 is connected to a pry bar structure 11. The pry bar structure 11 passes through the center of the centrifuge and extends to the top of the drum cover 7. A limiting structure 10 is provided on the pry bar structure 11. By using a hydraulic device 4 to lift the pry bar structure 11 upward, a gap can be created between the locking ring 8 and the drum 9.

[0036] In one alternative embodiment, the pry bar structure 11 includes a connecting rod 2 partially housed within the centrifuge and a conversion rod 3 located above the connecting rod 2, the conversion rod 3 being connected to the connecting rod 2.

[0037] In one alternative embodiment, the base plate structure 1 is used to support the centrifuge drum 9, the pry bar structure 11 is at least partially located above the centrifuge drum cover 7, and the limiting structure 10 and the drum cover 7 directly form a receiving space for accommodating the hydraulic device 4.

[0038] In one optional embodiment, the base plate structure 1 has a threaded hole 12 in the middle, and the connecting rod 2 is threadedly connected to the threaded hole 12.

[0039] In one alternative embodiment, the connecting rod 2 is a screw or lead screw.

[0040] In one optional embodiment, the end of the conversion rod 3 connected to the connecting rod 2 is provided with an internal thread, and the end of the conversion rod 3 connected to the limiting structure 10 is provided with an external thread; the limiting structure 10 and the conversion rod 3 are threadedly connected, and the connecting rod 2 and the conversion rod 3 are threadedly connected.

[0041] In one alternative embodiment, the limiting structure 10 is a nut.

[0042] In one optional embodiment, the limiting structure 10 is fixed to the conversion rod 3, or the limiting structure 10 and the conversion rod 3 are an integral structure.

[0043] In one alternative embodiment, the base plate structure 1 is provided with a receiving groove 13, which is adapted to the bottom of the centrifuge drum 9.

[0044] For details regarding the centrifuge, please refer to the section on centrifuge drum disassembly device mentioned above; further explanation is not required here.

[0045] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A centrifuge drum disassembly device, characterized in that, The device includes a base plate structure and a pry bar structure detachably connected to the base plate structure; the pry bar structure includes a connecting rod partially housed inside the centrifuge and a conversion rod located above the connecting rod, the conversion rod being connected to the connecting rod, wherein the conversion rod is provided with a limiting structure; The base plate structure is used to support the centrifuge drum, the pry bar structure is at least partially located above the centrifuge drum cover, and the limiting structure and the drum cover directly form a receiving space for accommodating the hydraulic device.

2. The centrifuge drum disassembly device according to claim 1, characterized in that, The base plate structure has a threaded hole in the middle, and the connecting rod is threadedly connected to the threaded hole.

3. The centrifuge drum disassembly device according to claim 2, characterized in that, The connecting rod is a screw or lead screw.

4. The centrifuge drum disassembly device according to claim 1, characterized in that, The end of the conversion rod connected to the connecting rod is provided with an internal thread, and the end of the conversion rod connected to the limiting structure is provided with an external thread; the limiting structure and the conversion rod are threadedly connected, and the connecting rod and the conversion rod are threadedly connected.

5. The centrifuge drum disassembly device according to claim 4, characterized in that, The limiting structure is a nut.

6. The centrifuge drum disassembly device according to claim 1, characterized in that, The limiting structure is fixed to the conversion rod, or the limiting structure and the conversion rod are an integral structure.

7. The centrifuge drum disassembly device according to claim 1, characterized in that, The base plate structure has a receiving groove that is adapted to the bottom of the centrifuge drum.

8. A centrifuge, characterized in that, The centrifuge includes a drum and a drum cover. The drum cover contains a blade assembly and a blade distributor. A locking ring is provided between the drum cover and the upper end of the drum. The bottom of the drum has a base plate structure, which is connected to a pry bar structure. The pry bar structure passes through the center of the centrifuge and extends to the top of the drum cover. The pry bar structure has a limiting structure. Lifting the pry bar structure upward using a hydraulic device can create a gap between the locking ring and the drum. The pry bar structure includes a connecting rod partially housed within the centrifuge and a conversion rod located above the connecting rod, the conversion rod being connected to the connecting rod.

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