Diaminodiphenyl ether centrifugal device

Abstract

The utility model discloses a diaminodiphenyl ether centrifugal device, which belongs to the technical field of diaminodiphenyl ether centrifugation and comprises a centrifugal machine body, a mounting mechanism, a fixing component, a reinforcing component and a limiting component. The centrifugal machine body comprises a supporting table, a driving motor, a centrifugal barrel, a transmission shaft and a rotary drum body. The driving motor is fixedly arranged on the supporting table through the motor base, the centrifugal barrel is fixedly arranged on the supporting table, the transmission shaft penetrates through the supporting table, and the rotary drum body is connected with the transmission shaft through the mounting mechanism; the mounting mechanism comprises a fixing assembly; the fixing assembly comprises a through hole groove, a fixing base, a fixing block, an inserting block and an inserting groove. A through hole groove is formed in the rotary drum body; the fixed seat is fixedly connected with one end of the transmission shaft; the fixed block is fixedly arranged in the through hole groove; the inserting block is fixedly arranged on the fixed seat; inserting grooves are formed in the sides, close to the fixing seats, of the fixing blocks; according to the diaminodiphenyl ether centrifugal device, the rotary drum body can be rapidly and conveniently replaced, and the replacement efficiency of the rotary drum body is greatly improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of diaminodiphenyl ether centrifugation, in particular to a diaminodiphenyl ether centrifugation device. Background Art

[0002] Diaminodiphenyl ether is an organic compound with the chemical formula C12H9NO. It is a solid crystal, colorless and odorless at room temperature. Diaminodiphenyl ether is insoluble in water, but soluble in organic solvents such as ethanol, ethers and ketones. It is a weakly alkaline compound that can react with acids to form corresponding salts. It is stable in the air, but should be avoided from contact with strong oxidants because it may undergo oxidation reactions.

[0003] A centrifuge is a machine that uses centrifugal force to separate liquid from solid particles or components in a mixture of liquid and liquid. A centrifuge is mainly used to separate solid particles from liquid in a suspension, or to separate two immiscible liquids of different densities in an emulsion.

[0004] When diaminodiphenyl ether is produced, liquid will adhere to the surface of diaminodiphenyl ether. Therefore, a filter centrifuge is needed to separate diaminodiphenyl ether from the liquid. However, in the prior art, the drums on most filter centrifuges are fixed to the filter centrifuges by bolts. This means that when the drum needs to be replaced, the bolts need to be removed with the help of tools, which is not only troublesome to operate, but also reduces the replacement efficiency of the drum, thereby affecting the use effect of the filter centrifuge. Utility Model Content

[0005] The utility model aims to provide a diaminodiphenyl ether centrifugal device to solve the problems raised in the background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a diaminodiphenyl ether centrifuge device, comprising a centrifuge body, a mounting mechanism, a fixing assembly, a reinforcement assembly and a limiting assembly; wherein the centrifuge body comprises a support platform, a drive motor, a centrifugal bucket, a transmission shaft and a drum body; the drive motor is fixed on the support platform through a motor seat, the centrifugal bucket is fixed on the side of the support platform close to the drive motor, the transmission shaft is passed through the support platform, the end of the transmission shaft passes through the centrifugal bucket and extends into the centrifugal bucket, and the transmission shaft is connected to the output shaft of the drive motor through a belt transmission mechanism, and the drum body is fixed through an installation mechanism. The mounting mechanism is connected with the transmission shaft; wherein the mounting mechanism includes a fixing component, a reinforcement component and a limit component; wherein the fixing component includes a through hole groove, a fixing seat, a fixing block, a plug-in block and a plug-in groove; a through hole groove is provided in the drum body; the fixing seat is fixedly connected to one end of the transmission shaft, and the fixing seat is plug-fitted with the through hole groove; the fixing block is fixed in the through hole groove, and the end of the fixing block extends to the outside through the through hole groove; the plug-in block is fixed on the side of the fixing seat away from the transmission shaft; a plug-in groove is provided on the side of the fixing block close to the fixing seat; wherein the plug-in block is plug-fitted with the plug-in groove.

[0007] As a preferred embodiment, the fixing block is in a T-shaped structure.

[0008] As a preferred embodiment, the reinforcement assembly includes a movable groove, a fixed plate, a transmission rod, a wedge, a reinforcement block, a return spring and a reinforcement groove; at least one movable groove is provided in the plug-in groove; the fixed plate is fixed in the movable groove; the transmission rod is passed through the fixed plate; the wedge is fixedly connected to one end of the transmission rod, and the end of the wedge extends to the outside through the movable groove; wherein, the wedge is slidably engaged with the movable groove; the reinforcement block is fixedly connected to the other end of the transmission rod, and the end of the reinforcement block extends to the outside through the movable groove; wherein, the reinforcement block is slidably engaged with the movable groove; the return spring is sleeved on the transmission rod, and one end of the return spring is fixedly connected to the fixed plate, and the other end is fixedly connected to the wedge; at least one reinforcement groove is provided on the plug-in block; wherein, the reinforcement block is plug-in engaged with the reinforcement groove.

[0009] As a preferred embodiment, the wedge-shaped member is in a right-angled trapezoidal structure, and the inclined surface of the wedge-shaped member is arranged away from the return spring and the fixing seat.

[0010] As a preferred embodiment, the limiting assembly includes a movable part, a square spring and a square part; the movable part is sleeved on the fixed block; the square spring is sleeved on the fixed block, and one end of the square spring is fixedly connected to the T-shaped end of the fixed block, and the other end is fixedly connected to the inner wall of the movable part; the square part is fixed in the movable part; wherein the elastic strength of the square spring is greater than the elastic strength of the return spring.

[0011] As a preferred embodiment, the cross-section of the square member is a right-angled triangle structure, and the inclined surface of the square member is in sliding contact with the inclined surface of the wedge-shaped member.

[0012] As a preferred embodiment, it further comprises a rotating assembly; the rotating assembly is arranged on the rotating drum body.

[0013] As a preferred embodiment, the rotating assembly includes an annular block and an annular groove; the annular block is fixed on the drum body; an annular groove is provided on the inner bottom wall of the centrifugal barrel; wherein the cross-section of the annular groove is a Y-shaped structure, and the dimension of the annular groove close to the drum body is larger than the dimension of the annular groove away from the drum body; wherein the annular block rotates in cooperation with the annular groove.

[0014] Compared with the prior art, the technical effects and advantages of the utility model are as follows:

[0015] The diaminodiphenyl ether centrifugal device of the utility model, when the drum body needs to be replaced, first, open the barrel cover of the centrifugal barrel, move the drum body upwards through the reinforcement component and the limit component, make the fixing seat slide in the through-hole groove, make the plug-in block slide in the plug-in groove, until the drum body is taken out of the centrifugal barrel, insert the plug-in block on the drum body to be installed into the plug-in groove, and make the fixing seat inserted into the through-hole groove until the plug-in block contacts the inner wall of the plug-in groove, thus completing the replacement of the drum body. The utility model can quickly and conveniently replace the drum body, and greatly improves the replacement efficiency of the drum body.

[0016] The utility model of the diaminodiphenyl ether centrifugal device provides a movable groove, a fixed plate, a transmission rod, a wedge-shaped piece, a reinforcement block, a return spring and a reinforcement groove, and through the action of a limiting component, the position of the plug-in block in the plug-in groove can be fixed, thereby further improving the stability of the plug-in block in the plug-in groove, thereby ensuring the overall performance of the centrifuge body.

[0017] The utility model of the diaminodiphenyl ether centrifugal device arranges movable parts, square springs and square parts, and arranges the elastic strength of the square spring to be greater than the elastic strength of the return spring. Under the elastic action of the square spring and the return spring, the reinforcement block can be plugged into or out of the reinforcement groove, so as to fix the position of the plug-in block.

[0018] The utility model provides a diaminodiphenyl ether centrifugal device. By arranging an annular block and an annular groove, the position of a rotating drum body in a centrifugal barrel can be supported and strengthened by utilizing the rotational cooperation between the annular block and the annular groove, so as to facilitate improving the stability of the rotating drum body during rotation. The cross section of the annular groove is arranged into a Y-shaped structure, and the dimension of the annular groove on a side close to the rotating drum body is arranged to be larger than the dimension of the annular groove on a side away from the rotating drum body, so as to facilitate the contact between the annular block and the annular groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 It is a cross-sectional view of the overall structure of the utility model;

[0022] Figure 3 It is a partial structural split cross-sectional view of the utility model;

[0023] Figure 4 This is a split cross-sectional view of the installation mechanism of the utility model;

[0024] Figure 5 For the utility model Figure 2 Enlarged schematic diagram at point A in the middle.

[0025] Description of reference numerals:

[0026] In the figure:

[0027] 1. Centrifuge body; 2. Installation mechanism; 3. Fixing assembly; 4. Reinforcement assembly; 5. Limiting assembly; 6. Rotating assembly;

[0028] 101, support platform; 102, drive motor; 103, centrifugal barrel; 104, transmission shaft; 105, drum body;

[0029] 301, through hole slot; 302, fixing seat; 303, fixing block; 304, plug-in block; 305, plug-in slot;

[0030] 401, movable slot; 402, fixed plate; 403, transmission rod; 404, wedge-shaped piece; 405, reinforcement block; 406, return spring; 407, reinforcement slot;

[0031] 501, movable part; 502, square spring; 503, square part;

[0032] 601. annular block; 602. annular groove. DETAILED DESCRIPTION

[0033] In the following description, a large number of specific details are given to provide a more thorough understanding of the utility model. However, it is obvious to those skilled in the art that the utility model can be implemented without one or more of these details. In other examples, in order to avoid confusion with the utility model, some technical features known in the art are not described.

[0034] Unless otherwise defined, the directions of up, down, left, right, front, back, inside and outside involved in this document are based on the directions of up, down, left, right, front, back, inside and outside in the figures shown in the present utility model, and are explained here together.

[0035] The connection method can be bonding, welding, bolt connection, etc., depending on actual needs.

[0036] See also Figures 1 to 5 As shown, this embodiment includes a centrifuge body 1, a mounting mechanism 2, a fixing assembly 3, a reinforcement assembly 4 and a limiting assembly 5; wherein the centrifuge body 1 includes a support platform 101, a drive motor 102, a centrifugal bucket 103, a transmission shaft 104 and a drum body 105; the drive motor 102 is fixed on the support platform 101 through a motor seat, the centrifugal bucket 103 is fixed on the support platform 101 near the side of the drive motor 102, the transmission shaft 104 is penetrated on the support platform 101, the end of the transmission shaft 104 passes through the centrifugal bucket 103 and extends into the centrifugal bucket 103, and the transmission shaft 104 is connected to the output shaft of the drive motor 102 through a belt transmission mechanism, and the drum body 105 is connected to the transmission shaft 104 through the mounting mechanism 2;

[0037] Among them, the installation mechanism 2 includes a fixing component 3, a reinforcement component 4 and a limit component 5; wherein the fixing component 3 includes a through hole slot 301, a fixing seat 302, a fixing block 303, a plug-in block 304 and a plug-in slot 305; a through hole slot 301 is opened in the drum body 105; the fixing seat 302 is fixedly connected to one end of the transmission shaft 104, and the fixing seat 302 is plugged into the through hole slot 301; the fixing block 303 is fixed in the through hole slot 301, and the end of the fixing block 303 extends to the outside through the through hole slot 301; the plug-in block 304 is fixed on the side of the fixing seat 302 away from the transmission shaft 104; the fixing block 303 is provided with a plug-in slot 305 on the side close to the fixing seat 302; wherein the plug-in block 304 is plug-in into the plug-in slot 305.

[0038] When the drum body 105 needs to be replaced, the utility model first opens the barrel cover of the centrifugal barrel 103, moves the drum body 105 upward through the reinforcement component 4 and the limit component 5, makes the fixing seat 302 slide in the through hole groove 301, makes the plug-in block 304 slide in the plug-in groove 305, until the drum body 105 is taken out from the centrifugal barrel 103, inserts the plug-in block 304 on the drum body 105 to be installed into the plug-in groove 305, and makes the fixing seat 302 insert into the through hole groove 301, until the plug-in block 304 contacts the inner wall of the plug-in groove 305, thus completing the replacement of the drum body 105. The utility model can quickly and conveniently replace the drum body 105, greatly improving the replacement efficiency of the drum body 105.

[0039] As a preferred embodiment, the fixing block 303 is in a T-shaped structure, so as to facilitate fixing the position of the limiting component 5 .

[0040] As a preferred embodiment, the reinforcement assembly 4 includes a movable groove 401, a fixed plate 402, a transmission rod 403, a wedge 404, a reinforcement block 405, a return spring 406 and a reinforcement groove 407; four movable grooves 401 are arranged in a square array in the plug-in groove 305; the fixed plate 402 is fixed in the movable groove 401; the transmission rod 403 is passed through the fixed plate 402; the wedge 404 is fixedly connected to one end of the transmission rod 403, and the end of the wedge 404 passes through the movable groove 401 and extends to the outside; wherein the wedge 404 Slidingly matched with the movable groove 401; the reinforcement block 405 is fixedly connected to the other end of the transmission rod 403, and the end of the reinforcement block 405 extends to the outside through the movable groove 401; wherein, the reinforcement block 405 is slidingly matched with the movable groove 401; the return spring 406 is sleeved on the transmission rod 403, and one end of the return spring 406 is fixedly connected to the fixed plate 402, and the other end is fixedly connected to the wedge 404; four reinforcement grooves 407 are provided in a square array on the plug-in block 304; wherein, the reinforcement block 405 is plugged and matched with the reinforcement groove 407.

[0041] The utility model arranges a movable groove 401, a fixed plate 402, a transmission rod 403, a wedge 404, a reinforcement block 405, a return spring 406 and a reinforcement groove 407, and through the action of a limiting component 5, the position of the plug-in block 304 in the plug-in groove 305 can be fixed, thereby further improving the stability of the plug-in block 304 in the plug-in groove 305, thereby ensuring the overall performance of the centrifuge body 1.

[0042] As a preferred embodiment, the wedge 404 is a right-angle trapezoidal structure, and the inclined surface of the wedge 404 is arranged away from the return spring 406 and the fixing seat 302. The utility model adopts such a design to facilitate the reinforcement of the position of the plug block 304 through the limiting component 5.

[0043] As a preferred embodiment, the limiting assembly 5 includes a movable part 501, a square spring 502 and a square part 503; the movable part 501 is sleeved on the fixed block 303; the square spring 502 is sleeved on the fixed block 303, and one end of the square spring 502 is fixedly connected to the T-shaped end of the fixed block 303, and the other end is fixedly connected to the inner wall of the movable part 501; the square part 503 is fixed in the movable part 501; wherein, the elastic strength of the square spring 502 is greater than the elastic strength of the return spring 406; wherein, the cross-section of the square part 503 is a right-angled triangle structure, and the inclined surface of the square part 503 is in sliding contact with the inclined surface of the wedge-shaped part 404. The utility model sets a movable part 501, a square spring 502 and a square part 503, and sets the elastic strength of the square spring 502 to be greater than the elastic strength of the return spring 406. Under the elastic action of the square spring 502 and the return spring 406, the reinforcement block 405 can be plugged in or out of the reinforcement groove 407, so as to fix the position of the plug-in block 304.

[0044] As a preferred embodiment, it also includes a rotating component 6; the rotating component 6 is arranged on the drum body 105; wherein the rotating component 6 includes an annular block 601 and an annular groove 602; the annular block 601 is fixed on the drum body 105; an annular groove 602 is provided on the inner bottom wall of the centrifugal barrel 103; wherein the cross-section of the annular groove 602 is a Y-shaped structure, and the size of the annular groove 602 on the side close to the drum body 105 is larger than the size of the annular groove 602 on the side away from the drum body 105; wherein the annular block 601 and the annular groove 602 are rotatably matched; when the return spring 406 returns to its original shape, the reinforcement block 405 is disengaged from the insertion with the reinforcement groove 407, and the square spring 502 can continue to contract; when the plug-in block 304 contacts the inner wall of the plug-in groove 305, the reinforcement block 405 can be plugged with the reinforcement groove 407. The utility model provides an annular block 601 and an annular groove 602, and utilizes the rotational cooperation between the annular block 601 and the annular groove 602 to support and strengthen the position of the drum body 105 in the centrifugal barrel 103, so as to facilitate improving the stability of the drum body 105 during rotation. The cross section of the annular groove 602 is set to a Y-shaped structure, and the size of the side of the annular groove 602 close to the drum body 105 is set to be larger than the size of the side of the annular groove 602 away from the drum body 105, so as to facilitate the contact between the annular block 601 and the annular groove 602.

[0045] The centrifuge body 1 and the drive motor 102 are both conventional instruments, and their working principles, sizes and models are irrelevant to the problems solved by the present application, so they are not described in detail. The control method of the present invention is controlled by a controller, and the control circuit of the controller can be realized by simple programming by technicians in this field. The provision of power is also common knowledge in this field, and the present invention is mainly used to protect mechanical devices, so the present invention will no longer explain the control method and circuit connection in detail.

[0046] How it works

[0047] When the diaminodiphenyl ether centrifugal device is used, first, the lid of the centrifugal bucket 103 is opened, the diaminodiphenyl ether mixture is poured into the drum body 105, and then the lid of the centrifugal bucket 103 is closed. Subsequently, the drive motor 102 is started to rotate the output shaft of the drive motor 102, so that the transmission shaft 104 rotates through the belt transmission mechanism, the drum body 105 rotates, and the annular block 601 rotates in the annular groove 602, so that the diaminodiphenyl ether mixture in the drum body 105 generates centrifugal force, so that the diaminodiphenyl ether and the liquid are separated, and the separated liquid is discharged from the centrifugal bucket 103 through the drain pipe on the centrifugal bucket 103, until the centrifugation of the diaminodiphenyl ether mixture is completed, and then the drum body 105 is taken out of the drum body 105;

[0048] When the drum body 105 needs to be replaced, first, the lid of the centrifugal bucket 103 is opened, and the movable member 501 is moved upward, so that the square member 503 moves upward, and the square spring 502 is forced to contract, so that the inclined surface of the square member 503 no longer presses the inclined surface of the wedge member 404, so that the return spring 406 is no longer stressed and begins to stretch, so that the wedge member 404 slides in the movable groove 401, so that the inclined surface of the wedge member 404 is always in contact with the inclined surface of the square member 503, so that the transmission The rod 403 moves, causing the reinforcement block 405 to slide in the movable groove 401 until the return spring 406 returns to its original shape. At this time, the reinforcement block 405 is disengaged from the insertion in the reinforcement groove 407. Subsequently, the drum body 105 is moved upward, causing the fixing seat 302 to slide in the through-hole groove 301, causing the plug-in block 304 to slide in the plug-in groove 305, causing the annular block 601 to no longer contact the annular groove 602, until the drum body 105 is taken out of the centrifugal barrel 103;

[0049] When the drum body 105 needs to be installed, the plug-in block 304 is inserted into the plug-in slot 305, and the fixing seat 302 is inserted into the through-hole slot 301, so that the annular block 601 contacts the annular slot 602 until the plug-in block 304 contacts the inner wall of the plug-in slot 305. At this time, the movable member 501 is released, and the square spring 502 is no longer subjected to force and begins to stretch, so that the movable member 501 and the square member 503 move downward, so that the inclined surface of the square member 503 squeezes the inclined surface of the wedge member 404, so that the wedge member 404 slides in the opposite direction in the movable slot 401, so that the transmission rod 403 moves in the opposite direction, so that the return spring 406 is forced to shrink, so that the reinforcement block 405 slides in the opposite direction in the movable slot 401, until the square spring 502 returns to its original shape. At this time, the reinforcement block 405 is plugged into the reinforcement slot 407, and the replacement of the drum body 105 is completed.

[0050] It should be noted that, in this article, relational terms such as one and two are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions. The sentence "includes an element defined by ... does not exclude the existence of other identical elements in the process, method, article or device including the element".

[0051] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A diaminodiphenyl ether centrifugal device, characterized in that: include: Centrifuge body (1); The centrifuge body (1) comprises a support platform (101), a drive motor (102), a centrifugal bucket (103), a transmission shaft (104) and a rotating drum body (105); the drive motor (102) is fixed on the support platform (101) via a motor seat, the centrifugal bucket (103) is fixed on a side of the support platform (101) close to the drive motor (102), the transmission shaft (104) is passed through the support platform (101), an end of the transmission shaft (104) passes through the centrifugal bucket (103) and extends into the centrifugal bucket (103), and the transmission shaft (104) is connected to an output shaft of the drive motor (102) via a belt transmission mechanism, and the rotating drum body (105) is connected to the transmission shaft (104) via a mounting mechanism (2); Wherein, the installation mechanism (2) comprises a fixing component (3), a reinforcement component (4) and a limiting component (5); The fixing assembly (3) comprises a through-hole groove (301), a fixing seat (302), a fixing block (303), a plug-in block (304) and a plug-in groove (305); the drum body (105) is provided with a through-hole groove (301); the fixing seat (302) is fixedly connected to one end of the transmission shaft (104), and the fixing seat (302) is plugged into the through-hole groove (301); the fixing block (303) is fixed in the through-hole groove (301), and an end of the fixing block (303) passes through the through-hole groove (301) and extends to the outside; the plug-in block (304) is fixed on a side of the fixing seat (302) away from the transmission shaft (104); the fixing block (303) is provided with a plug-in groove (305) on a side close to the fixing seat (302); and the plug-in block (304) is plug-in into the plug-in groove (305).

2. A diaminodiphenyl ether centrifugal device according to claim 1, characterized in that: The fixing block (303) has a T-shaped structure.

3. A diaminodiphenyl ether centrifugal device according to claim 2, characterized in that: The reinforcement component (4) comprises: At least one movable groove (401) is provided in the plug-in groove (305); A fixed plate (402) fixedly disposed in the movable groove (401); A transmission rod (403) is passed through the fixing plate (402); A wedge-shaped piece (404) is fixedly connected to one end of the transmission rod (403), and an end of the wedge-shaped piece (404) passes through the movable groove (401) and extends to the outside; Wherein, the wedge-shaped piece (404) is slidably matched with the movable groove (401); A reinforcement block (405) is fixedly connected to the other end of the transmission rod (403), and an end of the reinforcement block (405) passes through the movable groove (401) and extends to the outside; Wherein, the reinforcing block (405) is slidably matched with the movable groove (401); A return spring (406) is sleeved on the transmission rod (403), and one end of the return spring (406) is fixedly connected to the fixed plate (402), and the other end of the return spring (406) is fixedly connected to the wedge-shaped member (404); At least one reinforcement groove (407) is formed on the plug-in block (304); Wherein, the reinforcement block (405) is plug-fitted into the reinforcement groove (407).

4. A diaminodiphenyl ether centrifugal device according to claim 3, characterized in that: The wedge-shaped piece (404) is in a right-angled trapezoidal structure, and the inclined surface of the wedge-shaped piece (404) is arranged away from the return spring (406) and the fixing seat (302).

5. A diaminodiphenyl ether centrifugal device according to claim 4, characterized in that: The limiting component (5) comprises: A movable part (501) is sleeved on the fixed block (303); A square spring (502) is sleeved on the fixed block (303), and one end of the square spring (502) is fixedly connected to the T-shaped end of the fixed block (303), and the other end is fixedly connected to the inner wall of the movable part (501); A square member (503) is fixedly disposed in the movable member (501); Wherein, the elastic strength of the square spring (502) is greater than the elastic strength of the return spring (406).

6. A diaminodiphenyl ether centrifugal device according to claim 5, characterized in that: The cross section of the square piece (503) is a right-angled triangle structure, and the inclined surface of the square piece (503) is in sliding contact with the inclined surface of the wedge-shaped piece (404).

7. A diaminodiphenyl ether centrifugal device according to claim 1, characterized in that: Also includes: The rotating assembly (6) is arranged on the rotating drum body (105).

8. A diaminodiphenyl ether centrifugal device according to claim 7, characterized in that: The rotating assembly (6) comprises: An annular block (601) is fixedly mounted on the drum body (105); An annular groove (602) is provided on the inner bottom wall of the centrifugal barrel (103); The cross section of the annular groove (602) is in a Y-shaped structure, and the dimension of the side of the annular groove (602) close to the drum body (105) is larger than the dimension of the side of the annular groove (602) away from the drum body (105); The annular block (601) is rotationally matched with the annular groove (602).

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