Adjustable high-speed centrifugal machine

Abstract

The utility model relates to the technical field of centrifugal machines, in particular to an adjustable high-speed centrifugal machine which comprises a working table, a driving module, a shell, a connecting module and a rotor, the shell is fixedly installed at the top end of the working table, the driving module is fixedly installed in the working table, and the rotor is rotatably installed in the center of the interior of the shell. The connecting module is used for connecting the rotor and the driving module. When in use, the driving module can be controlled by the clutch to independently drive the first planetary gear carrier or the second planetary gear carrier, as the rotation ratios of the first planetary gear carrier and the second planetary gear carrier are different, the rotation ratios provided for the rotor are also different, and only the driven planetary gear carriers need to be switched; by means of the arrangement, the application range of the centrifugal machine can be widened, low-rotating-speed centrifugation can be provided for some large-mass substances, high-rotating-speed centrifugation can also be provided for some large-mass substances, and the effect that one machine has multiple purposes is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of centrifuges, in particular to an adjustable high-speed centrifuge. Background Art

[0002] A centrifuge is a machine that uses centrifugal force to separate components in a mixture of liquid and solid particles or liquid and liquid. Its working principle is to separate the different components in the mixture in the centrifugal field through high-speed rotation, thereby achieving the purpose of separation.

[0003] The rotation speed of the rotor of the existing centrifuge depends entirely on the speed of the driving motor and cannot be flexibly adjusted. Therefore, those skilled in the art provide an adjustable high-speed centrifuge to solve the problems raised in the above background technology. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides an adjustable high-speed centrifuge, including a workbench, a driving module, a shell, a connecting module and a rotor, wherein the shell is fixedly mounted on the top of the workbench, the driving module is fixedly mounted inside the workbench, the rotor is rotatably mounted at the inner center of the shell, the connecting module is used to connect the rotor and the driving module, the driving module is used to drive the rotor to rotate axially, a plurality of accommodating grooves are evenly arranged on the rotor axially, the inner bottom of the accommodating groove is provided with a threaded hole, the interior of the accommodating groove is screwed with a sleeve of equal height, the top of the sleeve of equal height is provided with an arc surface, and the top of the accommodating groove is provided with an end cover hingedly mounted on the top of the rotor;

[0005] The connecting module includes a main shaft, a first planetary gear carrier, a second planetary gear carrier and a displacement bracket. The first planetary gear carrier and the second planetary gear carrier are both inserted into the interior of the displacement bracket. The first planetary gear carrier and the second planetary gear carrier can rotate relative to the displacement bracket. The first planetary gear carrier is arranged above the second planetary gear carrier at intervals. The displacement bracket is used to drive the first planetary gear carrier to approach / move away from the second planetary gear carrier. The bottom end of the first planetary gear carrier is provided with a plurality of positioning holes, and the top end of the second planetary gear carrier is provided with a plurality of positioning rods corresponding to the positioning holes. A connecting shaft is provided at the center position of the top end of the first planetary gear carrier, and the connecting shaft passes through the outer shell and is transmission-connected to the rotor. The outer ring of the first planetary gear carrier is transmission-connected to the connecting shaft, and the inner ring of the first planetary gear carrier and the second planetary gear carrier are transmission-connected to the driving module through a clutch.

[0006] Preferably: the displacement bracket 44 includes a first sleeve and a second sleeve, the first sleeve is sleeved on the second sleeve, and the first sleeve can slide relative to the second sleeve, a linear drive cylinder is provided on the inner wall of the second sleeve, a slide groove is opened on the side wall of the second sleeve, and the slider of the linear drive cylinder is fixedly connected to the first sleeve through a slide rod passing through the slide groove.

[0007] Preferably: a second bearing is provided inside the second sleeve, the second bearing is connected to the second planetary gear carrier, a first bearing is provided inside the first sleeve, the first bearing is used to fix the first planetary gear carrier in the first sleeve, a gear retaining ring is provided inside the first sleeve, the gear retaining ring is meshed with the inner ring gear of the first planetary gear carrier.

[0008] Preferably: a temperature control module is arranged inside the housing.

[0009] Preferably, the bottom of the workbench is provided with cushioning feet.

[0010] Preferably, a rubber layer is provided on the top of the contour sleeve.

[0011] Technical effects and advantages of the utility model:

[0012] When the utility model is used, the driving module can be controlled by the clutch to drive the first planetary gear frame or the second planetary gear frame alone. Since the rotation ratios of the first planetary gear frame and the second planetary gear frame are different, the rotation ratios provided to the rotor are also inconsistent. It is only necessary to switch the driven planetary gear frame to achieve mutual switching between high and low speeds. This setting is conducive to increasing the use range of the centrifuge, providing low-speed centrifugation for some large-mass materials, and high-speed centrifugation for some large-mass materials, thereby achieving a multi-purpose effect of one machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure provided by this application;

[0014] Figure 2 is a schematic diagram of the structure of the rotor provided by the present application;

[0015] Figure 3 It is a structural diagram of the connection module provided by this application;

[0016] In the figure: 1. workbench; 2. drive module; 3. housing; 4. connection module; 5. rotor; 6. receiving groove; 7. buffer foot; 8. temperature control module; 41. main shaft; 42. first planetary gear carrier; 43. second planetary gear carrier; 44. displacement bracket; 441. first sleeve; 442. second sleeve; 45. positioning rod; 46. connecting shaft; 47. clutch. DETAILED DESCRIPTION

[0017] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and design various embodiments with various modifications suitable for specific purposes.

[0018] See also Figures 1 to 3 In this embodiment, an adjustable high-speed centrifuge is provided, including a workbench 1, a driving module 2, a shell 3, a connecting module 4 and a rotor 5, wherein the shell 3 is fixedly mounted on the top of the workbench 1, the driving module 2 is fixedly mounted inside the workbench 1, a buffer foot 7 is arranged at the bottom of the workbench 1, the rotor 5 is rotatably mounted at the inner center position of the shell 3, the connecting module 4 is used to connect the rotor 5 and the driving module 2, the driving module 2 is used to drive the rotor 5 to rotate axially, a plurality of accommodating grooves 6 are evenly arranged axially on the rotor 5, a threaded hole is arranged at the inner bottom of the accommodating groove 6, a sleeve of equal height is screwed inside the accommodating groove 6, a rubber layer is arranged at the top of the sleeve of equal height, an arc surface is arranged at the top of the accommodating groove 6, an end cover hingedly mounted on the top of the rotor 5 is arranged at the top of the accommodating groove 6, and a temperature control module 8 is arranged inside the shell 3;

[0019] The connecting module 4 includes a main shaft 41, a first planetary gear carrier 42, a second planetary gear carrier 43 and a displacement bracket 44. The first planetary gear carrier 42 and the second planetary gear carrier 43 are both inserted into the displacement bracket 44. The first planetary gear carrier 42 and the second planetary gear carrier 43 can rotate relative to the displacement bracket 44. The first planetary gear carrier 42 is arranged above the second planetary gear carrier 43 at intervals. The displacement bracket 44 is used to drive the first planetary gear carrier 42 to approach / move away from the second planetary gear carrier 43. The bottom end of the first planetary gear carrier 42 is provided with a plurality of positioning holes, and the top end of the second planetary gear carrier 43 is provided with a plurality of positioning rods 45 corresponding to the positioning holes. A connecting shaft 46 is provided at the center position of the top end of the first planetary gear carrier 42, and the connecting shaft 46 passes through The outer shell 3 is connected to the rotor 5 by transmission, the outer ring of the first planetary gear carrier 42 is connected to the connecting shaft 46 by transmission, and the inner ring of the first planetary gear carrier 42 and the second planetary gear carrier 43 are connected to the driving module 2 by transmission through the clutch 47. The clutch 47 can control the driving module 2 to drive the first planetary gear carrier 42 or the second planetary gear carrier 43 alone. Because the rotation ratio of the first planetary gear carrier 42 and the second planetary gear carrier 43 is different, the rotation ratio provided to the rotor 5 is also inconsistent. Only the driven planetary gear carrier needs to be switched to realize the switching between high and low speeds. This setting is conducive to increasing the use range of the centrifuge, providing low-speed centrifugation for some large-mass materials, and also providing high-speed centrifugation for some large-mass materials, realizing one machine with multiple uses;

[0020] The displacement bracket 44 includes a first sleeve 441 and a second sleeve 442. The first sleeve 441 is sleeved on the second sleeve 442, and the first sleeve 441 can slide relative to the second sleeve 442. A linear driving cylinder is arranged on the inner wall of the second sleeve 442. A sliding groove is opened on the side wall of the second sleeve 442. The slider of the linear driving cylinder is fixedly connected to the first sleeve 441 through a sliding rod passing through the sliding groove. A second bearing is arranged inside the second sleeve 442, and the second bearing is connected to the second planetary gear carrier 43. A first bearing is arranged inside the first sleeve 441, and the first bearing is used to fix the first planetary gear carrier 42 in the first sleeve 441. A gear retaining ring is arranged inside the first sleeve 441, and the gear retaining ring is meshed with the inner ring gear of the first planetary gear carrier 42.

[0021] The working principle of the utility model is:

[0022] When the utility model is used, the first planetary gear carrier 42 and the second planetary gear carrier 43 are driven to approach or move away from each other by the displacement bracket 44, and the clutch 47 and the driving module 2 are cooperated to realize different proportional driving of the rotor 5. Because the bottom of the first planetary gear carrier 42 is provided with a positioning hole, and the top of the second planetary gear carrier 43 is provided with a positioning rod 45, the positioning rod 45 is inserted into the positioning hole after they approach each other to a certain distance, and the second planetary gear carrier 43, the driving module 2, the outer ring of the first planetary gear carrier 42 and the rotor 5 are driven and connected by the connecting rod. When they move away from each other, the positioning rod 45 is separated from the positioning hole, and the driving module 2, the first planetary gear carrier 42 and the connecting rod are connected with the rotor 5 stroke driving, so the outer ring of the first planetary gear carrier 42 is rotatably mounted on the first bearing inside the first sleeve 441, and the inner ring of the first planetary gear carrier 42 is installed at the top of the sleeve, so that the drive disconnection of the first planetary gear carrier 42 can be realized, thereby realizing dual drive ratio transmission.

[0023] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. Structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to conventional means in the field unless otherwise specified and limited.

Claims

1. An adjustable high-speed centrifuge, comprising a workbench (1), a drive module (2), a housing (3), a connection module (4) and a rotor (5), characterized in that: The housing (3) is fixedly mounted on the top of the workbench (1), the driving module (2) is fixedly mounted inside the workbench (1), the rotor (5) is rotatably mounted at the center of the housing (3), the connecting module (4) is used to connect the rotor (5) and the driving module (2), the driving module (2) is used to drive the rotor (5) to rotate axially, a plurality of accommodating grooves (6) are evenly arranged on the rotor (5) in the axial direction, and an end cover hingedly mounted on the top of the rotor (5) is arranged at the top of the accommodating groove (6); The connection module (4) comprises a main shaft (41), a first planetary gear carrier (42), a second planetary gear carrier (43) and a displacement bracket (44); the first planetary gear carrier (42) and the second planetary gear carrier (43) are both arranged inside the displacement bracket (44); the first planetary gear carrier (42) and the second planetary gear carrier (43) are both rotatable relative to the displacement bracket (44); the first planetary gear carrier (42) is arranged above the second planetary gear carrier (43) at intervals; and the displacement bracket (44) is used to drive the first planetary gear carrier (42) to approach / move away from the second planetary gear carrier (43). A gear frame (43), a first planetary gear frame (42) having a plurality of positioning holes at its bottom end, a second planetary gear frame (43) having a plurality of positioning rods (45) corresponding to the positioning holes at its top end, a connecting shaft (46) being provided at the top center of the first planetary gear frame (42), the connecting shaft (46) passing through the housing (3) and being transmission-connected to the rotor (5), an outer ring of the first planetary gear frame (42) being transmission-connected to the connecting shaft (46), and an inner ring of the first planetary gear frame (42) and the second planetary gear frame (43) being transmission-connected to the drive module (2) via a clutch (47).

2. An adjustable high-speed centrifuge according to claim 1, characterized in that: The displacement bracket (44) comprises a first sleeve (441) and a second sleeve (442), wherein the first sleeve (441) is sleeved on the second sleeve (442), and the first sleeve (441) can slide relative to the second sleeve (442), a linear drive cylinder is arranged on the inner wall of the second sleeve (442), a sliding groove is arranged on the side wall of the second sleeve (442), and a slider of the linear drive cylinder is fixedly connected to the first sleeve (441) through a sliding rod passing through the sliding groove.

3. An adjustable high-speed centrifuge according to claim 2, characterized in that: A second bearing is arranged inside the second sleeve (442), and the second bearing is connected to the second planetary gear carrier (43). A first bearing is arranged inside the first sleeve (441), and the first bearing is used to fix the first planetary gear carrier (42) inside the first sleeve (441). A gear retaining ring is arranged inside the first sleeve (441), and the gear retaining ring is meshed with the inner ring gear of the first planetary gear carrier (42).

4. The adjustable high-speed centrifuge according to claim 1, characterized in that: A temperature control module (8) is arranged inside the housing (3).

5. The adjustable high-speed centrifuge according to claim 1, characterized in that: The bottom of the workbench (1) is provided with cushioning feet (7).

6. An adjustable high-speed centrifuge according to claim 1, characterized in that: The inner bottom of the accommodating groove (6) is provided with a threaded hole, the interior of the accommodating groove (6) is threadedly connected with a contour sleeve, the top of the contour sleeve is provided with an arc surface, and the top of the contour sleeve is provided with a rubber layer.

Images