Centrifugal machine turnover device

Abstract

The utility model relates to the technical field of centrifugal machines, and discloses a centrifugal machine turnover device which comprises a base, and a barrel-shaped centrifugal machine shell is installed on the base. A cover plate is mounted at an opening in the top of the centrifuge shell; a slot is formed in the shell at the opening of the centrifugal machine shell; the bottom of the cover plate is fixedly provided with an insertion block in insertion limiting fit with the insertion groove. A sliding groove is formed in a shell body of the centrifugal machine shell. A clamping groove is formed in the inserting block. Clamping blocks are slidably installed in the sliding grooves and slidably connected with the clamping grooves in a clamped mode. A sliding shaft is fixedly arranged at the bottom of the cover plate and vertically penetrates through a side shell of the centrifugal machine shell downwards. A linkage assembly and a driving assembly are arranged between the centrifugal machine shell and the base. The clamping block is in transmission fit with the centrifugal machine shell through the linkage assembly. The sliding shaft is in transmission fit with the centrifugal machine shell through a driving assembly. The cover plate can be automatically disassembled and assembled when the centrifugal machine shell moves up and down, the automation degree is high, and the centrifugal production efficiency is high.

Description

Technical Field

[0001] This utility model relates to the field of centrifuge technology, and in particular to a centrifuge tumbling device. Background Technology

[0002] Nowadays, centrifuges are commonly used in chemical experiments. Centrifuges are mainly used to separate solid particles from liquids in suspensions, or to separate two immiscible liquids with different densities in emulsions. To facilitate the inversion of centrifuges, centrifuge inversion mechanisms are usually used.

[0003] The centrifuge tilting mechanism for convenient discharge disclosed in announcement number CN218742540U includes a base; a lifting component is provided at the upper end of the base, a side plate is provided at the upper end of the lifting component, a first motor is provided on the outer side of the side plate, a mounting bracket is provided at the output end of the first motor, a second motor is provided on the outer side of the mounting bracket, a second motor is provided at the output end of the second motor, a centrifuge housing is provided at the output end of the second motor, a centrifuge component is provided on the inner side of the centrifuge housing, and a cover plate is provided at the upper end of the centrifuge housing, with the cover plate threadedly connected to the centrifuge housing.

[0004] Based on the above technical features, the problem is that in the existing technology, the cover plate needs to be manually screwed onto the centrifuge shell, which has a low degree of automation and affects the centrifugation production efficiency.

[0005] Therefore, it is necessary to solve the above problems by using a centrifuge tumbling device. Utility Model Content

[0006] The purpose of this invention is to provide a centrifuge tumbling device to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a centrifuge tilting device, comprising a base, on which a cylindrical centrifuge shell is movably mounted; a cover plate is installed at the opening at the top of the centrifuge shell;

[0008] A slot is provided on the shell at the opening of the centrifuge casing; a plug block is fixedly provided at the bottom of the cover plate to cooperate with the slot for insertion and limiting.

[0009] The centrifuge housing has a radially formed sliding groove inside the housing, and the insert block has a radially formed slot on the centrifuge housing; the slot corresponds to the sliding groove, and the slot block is slidably installed in the sliding groove, and the slot block is slidably engaged with the slot block;

[0010] A sliding shaft is fixedly installed at the bottom of the cover plate, and the sliding shaft penetrates vertically downward through the side shell of the centrifuge.

[0011] A linkage component and a drive component are provided between the centrifuge casing and the base;

[0012] The card block is driven to move along the centrifuge housing via a linkage component. The linkage component is used to drive the card block to slide radially along the centrifuge housing.

[0013] The sliding shaft is connected to the centrifuge housing via a drive assembly. The drive assembly is used both to drive the sliding shaft to slide along the axial direction of the centrifuge housing and to drive the sliding shaft to rotate.

[0014] Preferably, the linkage component includes a slide rod; a downward-facing mounting groove is formed in the side shell of the centrifuge housing along the vertical direction, the slide rod passes upward into the mounting groove and slides in a limiting engagement with the mounting groove; a pull block is fixedly provided at the top of the slide rod, and a pull rope is fixedly provided between the pull block and the locking block; a connecting groove for the pull rope to move is provided in the side shell of the centrifuge housing, the connecting groove connecting the mounting groove and the slide groove; a first spring is provided in the slide groove along the sliding direction of the locking block, the first spring being fixedly connected to the locking block and the side shell of the centrifuge housing; a top block is fixedly provided at the bottom of the slide rod; a second spring is sleeved on the slide rod, the second spring being fixedly connected to the top block and the centrifuge housing; an elastic abutment is fixedly provided on the base, the elastic abutment engaging with the top block in a contact-type abutment transmission engagement.

[0015] Preferably, the elastic abutment includes a first fixing block fixed on the base, a push plate disposed above the first fixing block, and a third spring fixedly disposed between the push plate and the first fixing block; a guide rod is fixedly disposed at the bottom of the push plate, the guide rod is inserted downward into the first fixing block and slides with the first fixing block in a limiting manner; the push plate is located directly below the top block and abuts and drives with the top block in a contact manner.

[0016] Preferably, the drive assembly includes a vertical shaft and a horizontal shaft; the vertical shaft is coaxially fixed to the bottom end of the sliding shaft; a second fixing block is fixedly disposed on the base, and a fixing plate is fixedly disposed on the second fixing block, and the horizontal shaft is fixed on the fixing plate; a spiral groove is formed along the circumference of the vertical shaft, and the horizontal shaft is arranged radially along the vertical shaft and inserted into the spiral groove for limiting sliding cooperation with the spiral groove; the horizontal shaft and the vertical shaft are in abutting transmission cooperation.

[0017] Preferably, the elastic coefficient of the third spring is much greater than that of the second spring and the first spring.

[0018] Preferably, the slot is an incomplete annular groove, and the insert is an incomplete annular block that matches the slot.

[0019] Preferably, a disc is rotatably mounted at the bottom of the cover plate, and the diameter of the disc is smaller than the inner diameter of the opening of the centrifuge housing.

[0020] Preferably, a side plate is fixedly provided on the base, and a slide block is slidably installed on the side plate; a support frame is rotatably installed on the slide block, and the centrifuge shell is rotatably installed on the support frame; a power component for driving the slide block to slide up and down is installed on the side plate, a second motor for driving the support frame to rotate is installed on the slide block, and a third motor for driving the centrifuge shell to rotate is installed on the support frame.

[0021] Preferably, the power assembly includes a first motor, which is fixed to a side plate; the side plate has a clearance groove for the slide block to slide up and down, and a threaded rod and a limiting rod are vertically placed in the clearance groove; the threaded rod is rotatably connected to the side plate, and the limiting rod is fixedly connected to the side plate; both the threaded rod and the limiting rod pass through the slide block, the threaded rod is threadedly connected to the slide block, and the slide block and the limiting rod are in a limiting sliding fit; the output shaft of the first motor is coaxially fixedly connected to the threaded rod.

[0022] Preferably, the output shafts of the second motor and the third motor are both arranged radially along the centrifuge casing and perpendicular to each other.

[0023] The technical effects and advantages of this utility model are as follows: This utility model automatically engages and disengages with the insert block by driving the linkage component; at the same time, it drives the sliding shaft to slide up and down and rotate by driving component; thereby realizing the automatic disassembly and assembly of the cover plate, with a high degree of automation and high centrifugal production efficiency. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0025] Figure 2 This is a three-dimensional side view of the present invention;

[0026] Figure 3 This is a schematic diagram of the bottom of the centrifuge casing of this utility model;

[0027] Figure 4 This is a schematic diagram of the interior of the centrifuge casing of this utility model;

[0028] Figure 5 This is a schematic diagram of the top of the centrifuge casing of this utility model.

[0029] In the diagram: 1. Base; 2. Side plate; 3. First motor; 4. Threaded rod; 5. Limiting rod; 6. Slide; 7. Second motor; 8. Support frame; 9. Third motor; 10. Centrifuge housing; 11. Cover plate; 12. Counterweight; 13. Disc; 14. Fourth motor; 15. Rotating seat; 16. Glass bottle; 17. Assembly / disassembly slot; 18. Insert block; 19. Slot; 20. Locking block; 21. First spring; 22. Pull rope; 23. Pull block; 24. Slide rod; 25. Second spring; 26. Top block; 27. Slide shaft; 28. Vertical shaft; 29. ​​Spiral groove; 30. Guide rod; 31. Push plate; 32. Third spring; 33. Horizontal shaft; 34. Fixing plate. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0031] This utility model provides, for example Figures 1 to 5 The centrifuge tilting device shown includes a base 1. A side plate 2 is fixedly mounted on the base 1, and the side plate 2 is vertically oriented. A slide block 6 is slidably mounted on the side plate 2, and a power assembly for driving the slide block 6 to slide up and down is mounted on the side plate 2.

[0032] Specifically, the power assembly includes a first motor 3, which is fixed to the side plate 2. The side plate 2 has a clearance groove for the slide block 6 to slide up and down, and a threaded rod 4 and a limiting rod 5 are vertically placed in the clearance groove.

[0033] The threaded rod 4 is rotatably connected to the side plate 2, and the output shaft of the first motor 3 is coaxially and fixedly connected to the threaded rod 4. The threaded rod 4 passes through the slide 6 and is threadedly connected to the slide 6.

[0034] The limiting rod 5 is fixedly connected to the side plate 2, and the limiting rod 5 passes through the slide block 6. The slide block 6 and the limiting rod 5 are in a limiting sliding fit.

[0035] A support frame 8 is rotatably mounted on the slide 6. The support frame 8 is a U-shaped frame. A cylindrical centrifuge casing 10 is rotatably mounted between the two distal ends of the support frame 8.

[0036] A second motor 7 is fixedly mounted on the slide 6, and the output shaft of the second motor 7 is arranged in a horizontal direction. The non-far end of the support frame 8 is fixedly connected to the output shaft of the second motor 7, and the two far ends of the support frame 8 are symmetrical with respect to the output shaft of the second motor 7 and are both parallel to the output shaft of the second motor 7.

[0037] A third motor 9 is fixedly mounted on the support frame 8, and the output shaft of the third motor 9 is set in the horizontal direction. The centrifuge housing 10 is fixedly connected to the output shaft of the third motor 9.

[0038] The output shafts of the second motor 7 and the third motor 9 are both arranged radially along the centrifuge housing 10 and perpendicular to each other. Both the second motor 7 and the third motor 9 are equipped with a brake device.

[0039] A cylindrical rotating base 15 is coaxially mounted inside the centrifuge housing 10. Multiple glass bottles 16 are evenly distributed circumferentially inside the rotating base 15, each bottle passing through and secured to the base using existing technology. A disassembly slot 17 is provided at the top of the rotating base 15, and each glass bottle 16 is located within this slot for easy placement and removal. A fourth motor 14 is fixedly mounted at the bottom of the centrifuge housing 10. The output shaft of the fourth motor 14 passes through the centrifuge housing 10 and is coaxially and fixedly connected to the rotating base 15. The technology described in this section is existing technology for centrifuges and will not be elaborated further.

[0040] A cover plate 11 is installed at the opening at the top of the centrifuge housing 10. A disc 13 is rotatably installed at the bottom of the cover plate 11. The diameter of the disc 13 is smaller than the inner diameter of the opening of the centrifuge housing 10. The disc 13 abuts against the top of the glass bottle 16.

[0041] A circumferential slot 19 is formed on the shell of the centrifuge housing 10 at the opening. The slot 19 is an incomplete annular groove. A plug block 18, which is also an incomplete annular block, is fixedly disposed at the bottom of the cover plate 11 to match the slot 19. The plug block 18 and the slot 19 are engaged and locked together. In this embodiment, the disc 13 is located inside the plug block 18, and the thickness of the disc 13 is less than the thickness of the plug block 18.

[0042] A radially spaced groove is formed inside the side shell of the centrifuge housing 10, and a radially spaced slot is formed on the insert block 18 along the centrifuge housing 10. The slot corresponds to the groove, and the insert block 20 is slidably installed in the groove, and the insert block 20 is slidably engaged with the slot.

[0043] A linkage component is provided between the centrifuge housing 10 and the base 1. The locking block 20 is driven to cooperate with the centrifuge housing 10 through the linkage component. The linkage component is used to drive the locking block 20 to slide radially along the centrifuge housing 10.

[0044] Specifically, the linkage component includes a slide rod 24. A downward-facing mounting groove is formed vertically within the side housing of the centrifuge casing 10. The slide rod 24 extends upward into the mounting groove and slides within it. A pull block 23 is fixedly mounted at the top of the slide rod 24, and a pull rope 22 is fixedly mounted between the pull block 23 and the locking block 20.

[0045] A connecting groove is provided inside the side shell of the centrifuge housing 10 for the pull rope 22 to move. The connecting groove connects the mounting groove and the slide groove.

[0046] A first spring 21 is provided inside the slide groove along the sliding direction of the locking block 20, and the first spring 21 is sleeved on the outside of the pull rope 22. One end of the first spring 21 is fixedly connected to the locking block 20, and the other end is fixedly connected to the side shell of the centrifuge housing 10.

[0047] A top block 26 is fixedly installed at the bottom end of the slide rod 24. A second spring 25 is sleeved on the slide rod 24. The top end of the second spring 25 is fixedly connected to the centrifuge housing 10, and the bottom end of the second spring 25 is fixedly connected to the top block 26.

[0048] An elastic abutment is fixedly installed on the base 1, and the elastic abutment is in contact with the top block 26 for transmission.

[0049] Specifically, the elastic abutment includes a first fixing block, which is fixed to the top of the base 1. A horizontal push plate 31 is provided above the first fixing block, and a third spring 32 is vertically placed between the push plate 31 and the first fixing block. The top end of the third spring 32 is fixedly connected to the push plate 31, and the bottom end of the third spring 32 is fixedly connected to the first fixing block.

[0050] The elastic coefficient of the third spring 32 is much greater than that of the second spring 25 and the first spring 21.

[0051] Two guide rods 30 are vertically placed between the push plate 31 and the first fixed block, and the two guide rods 30 are symmetrically arranged with respect to the third spring 32. The top end of each guide rod 30 is fixedly connected to the push plate 31, and the bottom end of each guide rod 30 is inserted downward into the first fixed block and slides with the first fixed block for limiting.

[0052] The push plate 31 is located directly below the top block 26 and is in contact with the top block 26 in a transmission engagement.

[0053] A sliding shaft 27 is fixedly installed at the bottom of the cover plate 11, and the sliding shaft 27 extends vertically downward through the side shell of the centrifuge housing 10. The sliding shaft 27 is located at the notch of the slot 19, and the sliding shaft 27 and the locking block 20 are located on the same radial line of the centrifuge housing 10. The rotating seat 15 is located between the sliding shaft 27 and the locking block 20.

[0054] A drive assembly is provided between the centrifuge housing 10 and the base 1. The slide shaft 27 is driven by the drive assembly to engage with the centrifuge housing 10. The drive assembly is used to drive the slide shaft 27 to slide along the axial direction of the centrifuge housing 10 and to drive the slide shaft 27 to rotate.

[0055] Specifically, the drive assembly includes a vertical shaft 28 and a horizontal shaft 33. The vertical shaft 28 is coaxially fixed to the bottom end of the sliding shaft 27. A second fixing block is fixedly mounted on the top of the base 1, and a fixing plate 34 is fixedly mounted on the top of the second fixing block. The horizontal shaft 33 is fixed to the fixing plate 34. A spiral groove 29 is formed circumferentially on the vertical shaft 28, and a notch is formed at the bottom end of the spiral groove 29. The horizontal shaft 33 is arranged radially along the vertical shaft 28. The horizontal shaft 33 moves through the notch and inserts into the spiral groove 29, where it slides and is limited by the spiral groove 29. The horizontal shaft 33 abuts against the vertical shaft 28 for transmission.

[0056] To ensure that the center of gravity of the centrifuge casing 10 is always in the middle position, a counterweight 12 is fixedly installed on the top of the cover plate 11.

[0057] Working principle: During centrifugal production, the fourth motor 14 is started, and the output shaft of the fourth motor 14 drives the rotating seat 15 to rotate. The rotating seat 15 drives the glass bottle 16 to revolve around the output shaft of the fourth motor 14, thereby carrying out centrifugal production. During this process, the glass bottle 16 drives the disc 13 to rotate.

[0058] When the centrifuge needs to be rotated, the second motor 7 and the third motor 9 can be started. The output shaft of the second motor 7 drives the support frame 8 to rotate, and the output shaft of the third motor 9 drives the centrifuge casing 10 to rotate. When the support frame 8 rotates, it drives the centrifuge casing 10 to rotate. This achieves the rotation of the centrifuge.

[0059] After centrifugation is completed, the opening of the centrifuge casing 10 is turned vertically upwards. At this time, the second motor 7, the third motor 9, and the fourth motor 14 are all off. Next, the first motor 3 is started, and the output shaft of the first motor 3 drives the threaded rod 4 to rotate. The threaded rod 4 pushes the slide 6 down, and the slide 6 drives the support frame 8 to move down. The support frame 8 drives the centrifuge casing 10 to move down.

[0060] When the centrifuge casing 10 moves downward, the second spring 25 drives the top block 26 to move downward and eventually contact the push plate 31. After contact with the push plate 31, the top block 26 stops moving. The centrifuge casing 10 compresses the second spring 25, while the slide rod 24 moves upward relative to the centrifuge casing 10. At this time, the pull block 23 drives the pull rope 22, which pulls the locking block 20 to disengage from the insert block 18. During this process, the locking block 20 compresses the first spring 21. At the same time, the vertical shaft 28 moves downward.

[0061] Subsequently, as the centrifuge casing 10 continues to descend, the second spring 25 is compressed to its limit, and the locking block 20 completely disengages from the insert block 18 and slides back into the groove. At this time, the top block 26 pushes the push plate 31 to compress the third spring 32, and the vertical shaft 28 moves down to contact the horizontal shaft 33, which then inserts into the notch of the spiral groove 29. Next, the horizontal shaft 33 pushes the vertical shaft 28 upward, and the vertical shaft 28 pushes the cover plate 11 upward, causing the cover plate 11 to slide the insert block 18 out of the slot 19.

[0062] After the insert 18 has completely slid out of the slot 19, the horizontal shaft 33 drives the vertical shaft 28 to rotate through the spiral groove 29. During this process, under the action of gravity, the insert 18 slides into contact with the top of the centrifuge housing 10. At the same time, the vertical shaft 28 drives the cover plate 11 to rotate 180 degrees along the horizontal plane.

[0063] After the cover plate 11 rotates 180 degrees along the horizontal plane, the first motor 3 is turned off. At this time, the opening at the top of the centrifuge housing 10 is fully open, and the insert block 18 abuts against the top of the centrifuge housing 10.

[0064] Next, take out the old glass bottle 16 and put in the new glass bottle 16.

[0065] After all the new glass bottles 16 are placed in, the first motor 3 is started again. At this time, the centrifuge casing 10 moves upward and pushes the insert block 18 to move upward in sync; at the same time, the third spring 32 extends, and the push plate 31 pushes the top block 26 to move upward in sync.

[0066] When the insert block 18 moves upward, it pushes the cover plate 11 upward simultaneously, and the cover plate 11 drives the sliding shaft 27 upward simultaneously. The sliding shaft 27 drives the vertical shaft 28 upward simultaneously, and the horizontal shaft 33 pushes the vertical shaft 28 to reverse 180 degrees. The vertical shaft 28 drives the sliding shaft 27 to reverse 180 degrees, and the sliding shaft 27 drives the cover plate 11 to reverse 180 degrees along the horizontal plane. After the cover plate 11 reverses 180 degrees along the horizontal plane, the horizontal shaft 33 is located at the notch at the bottom of the spiral groove 29 and the vertical shaft 28 abuts against the horizontal shaft 33. At the same time, the cover plate 11 is located directly above the centrifuge housing 10, and the insert block 18 is located directly above the slot 19.

[0067] Subsequently, as the centrifuge casing 10 continues to move upward, the cover plate 11, insert block 18, slide shaft 27, vertical shaft 28, and horizontal shaft 33 remain relatively stationary. Simultaneously, under the influence of gravity, the insert block 18 gradually slides relative to the centrifuge casing 10 into the slot 19 and eventually becomes fully inserted. After the insert block 18 is fully inserted into the slot 19, the centrifuge casing 10, insert block 18, cover plate 11, slide shaft 27, and vertical shaft 28 move upward synchronously; at the same time, the horizontal shaft 33 disengages from the vertical shaft 28. During this process, the push plate 31 pushes the top block 26 to continue moving upward synchronously until the horizontal shaft 33 disengages from the vertical shaft 28.

[0068] Next, as the centrifuge casing 10 continues to move upward, the second spring 25 extends, and the push plate 31 and the top block 26 remain relatively stationary. Simultaneously, the slide rod 24 slides down relative to the centrifuge casing 10, and the pull rope 22 slackens. Then, under the elastic force of the first spring 21, the locking block 20 slides again into the slot of the insert block 18. Afterward, the top block 26, slide rod 24, second spring 25, pull block 23, and centrifuge casing 10 remain relatively stationary and move upward together. During the upward movement, the top block 26 disengages from the push plate 31.

[0069] Once the centrifuge casing 10 reaches the preset height, the first motor 3 can be turned off.

[0070] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A centrifuge tilting device, comprising a base (1), characterized in that: A cylindrical centrifuge housing (10) is movably mounted above the base (1); a cover plate (11) is installed at the opening at the top of the centrifuge housing (10); A slot (19) is provided on the shell at the opening of the centrifuge shell (10); a plug (18) is fixedly provided on the bottom of the cover plate (11) to fit into and limit the slot (19); The centrifuge housing (10) has a radially formed sliding groove inside the housing, and the insert block (18) has a radially formed slot on the centrifuge housing (10); the slot corresponds to the sliding groove, and the slot block (20) is slidably installed in the sliding groove, and the slot block (20) is slidably engaged with the slot. The bottom of the cover plate (11) is fixedly provided with a sliding shaft (27), which vertically penetrates the side shell of the centrifuge housing (10). A linkage component and a drive component are provided between the centrifuge shell (10) and the base (1); The card block (20) is driven to the centrifuge housing (10) through a linkage component. The linkage component is used to drive the card block (20) to slide radially along the centrifuge housing (10). The sliding shaft (27) is driven by the centrifuge housing (10) through the drive assembly. The drive assembly is used to drive the sliding shaft (27) to slide along the axial direction of the centrifuge housing (10) and to drive the sliding shaft (27) to rotate.

2. A centrifuge tumbling device according to claim 1, characterized in that: The linkage component includes a slide rod (24); a mounting groove with the slot facing downward is opened vertically in the side shell of the centrifuge housing (10), the slide rod (24) passes upward into the mounting groove and slides in a limiting fit with the mounting groove; a pull block (23) is fixedly provided at the top of the slide rod (24), and a pull rope (22) is fixedly provided between the pull block (23) and the locking block (20); a connecting groove for the pull rope (22) to move is opened in the side shell of the centrifuge housing (10), and the connecting groove connects the mounting groove and the slide groove; A first spring (21) is provided in the sliding groove along the sliding direction of the locking block (20). The first spring (21) is fixedly connected to the locking block (20) and the side shell of the centrifuge housing (10). A top block (26) is fixedly provided at the bottom end of the slide rod (24). A second spring (25) is sleeved on the slide rod (24). The second spring (25) is fixedly connected to the top block (26) and the centrifuge housing (10). An elastic abutment is fixedly provided on the base (1). The elastic abutment is in contact with the top block (26) in a transmission engagement.

3. A centrifuge tumbling device according to claim 2, characterized in that: The elastic abutment includes a first fixing block fixed on the base (1), a push plate (31) is provided above the first fixing block, and a third spring (32) is fixed between the push plate (31) and the first fixing block; a guide rod (30) is fixedly provided at the bottom of the push plate (31), the guide rod (30) is inserted downward into the first fixing block and is limited and slidably engaged with the first fixing block; the push plate (31) is located directly below the top block (26) and is in contact with the top block (26) in a contact abutment transmission engagement.

4. A centrifuge tumbling device according to claim 3, characterized in that: The drive assembly includes a vertical shaft (28) and a horizontal shaft (33); the vertical shaft (28) is coaxially fixed to the bottom end of the sliding shaft (27); a second fixing block is fixedly installed on the base (1), and a fixing plate (34) is fixedly installed on the second fixing block, and the horizontal shaft (33) is fixed on the fixing plate (34); a spiral groove (29) is opened along the circumference of the vertical shaft (28), and the horizontal shaft (33) is arranged radially along the vertical shaft (28) and inserted into the spiral groove (29) and slides in a limiting fit with the spiral groove (29); the horizontal shaft (33) and the vertical shaft (28) are in abutment transmission fit.

5. A centrifuge tumbling device according to claim 4, characterized in that: The elastic coefficient of the third spring (32) is much greater than that of the second spring (25) and the first spring (21).

6. A centrifuge tumbling device according to claim 4, characterized in that: The slot (19) is an incomplete ring slot, and the insert (18) is an incomplete ring block that matches the slot (19).

7. A centrifuge tumbling device according to claim 1, characterized in that: A disc (13) is rotatably mounted on the bottom of the cover plate (11), and the diameter of the disc (13) is smaller than the inner diameter of the opening of the centrifuge housing (10).

8. A centrifuge tumbling device according to claim 1, characterized in that: A side plate (2) is fixedly installed on the base (1), and a slide block (6) is slidably installed on the side plate (2); a support frame (8) is rotatably installed on the slide block (6), and the centrifuge shell (10) is rotatably installed on the support frame (8); a power component for driving the slide block (6) to slide up and down is installed on the side plate (2), a second motor (7) for driving the support frame (8) to rotate is installed on the slide block (6), and a third motor (9) for driving the centrifuge shell (10) to rotate is installed on the support frame (8).

9. A centrifuge tumbling device according to claim 8, characterized in that: The power assembly includes a first motor (3), which is fixed on a side plate (2). The side plate (2) has a clearance groove for the slide block (6) to slide up and down. A threaded rod (4) and a limiting rod (5) are vertically placed in the clearance groove. The threaded rod (4) is rotatably connected to the side plate (2), and the limiting rod (5) is fixedly connected to the side plate (2). The threaded rod (4) and the limiting rod (5) both pass through the slide block (6). The threaded rod (4) is threadedly connected to the slide block (6), and the slide block (6) and the limiting rod (5) are in a limiting sliding fit. The output shaft of the first motor (3) is coaxially fixedly connected to the threaded rod (4).

10. A centrifuge tumbling device according to claim 8, characterized in that: The output shafts of the second motor (7) and the third motor (9) are both arranged radially along the centrifuge housing (10) and perpendicular to each other.

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