CN210131724U

CN210131724U - Transmission device for reducing vibration of centrifugal machine

Info

Publication number: CN210131724U
Application number: CN201920709186.6U
Authority: CN
Inventors: 刘明明
Original assignee: JIANGSU GANGBAO ROLLER CO Ltd
Current assignee: JIANGSU GANGBAO ROLLER CO Ltd
Priority date: 2019-05-17
Filing date: 2019-05-17
Publication date: 2020-03-10
Anticipated expiration: 2029-05-17

Abstract

The utility model discloses a transmission for reducing centrifuge vibrations, relate to centrifuge technology, including the connecting block, the connecting block is fixed in the axis of rotation, axis of rotation fixed connection is on driving motor's output, driving motor fixes in the centrifuge shell, the top that is located driving motor in the centrifuge shell is equipped with the centrifuge bowl, be equipped with the boss on the bottom central point of centrifuge bowl puts, the boss is equipped with the fixed slot towards one side of axis of rotation, the fixed slot internal fixation is equipped with first bearing, the inner ring fixed connection of first bearing is in the axis of rotation, the bottom of centrifuge bowl is equipped with the dashpot of a circular structure, the connecting block is located the central point of dashpot and puts, and be connected with a plurality of elastic components between dashpot and the connecting block. The utility model discloses simple structure, the centrifugation rotates the in-process and can play good cushioning effect, realizes reducing the noise and the vibrations of centrifuge complete machine, plays good guard action to centrifuge.

Description

Transmission device for reducing vibration of centrifugal machine

Technical Field

The utility model belongs to the centrifuge technique, concretely relates to a transmission for reducing centrifuge vibrations.

Background

Centrifuges are machines that utilize centrifugal force to separate components of a mixture of liquid and solid particles or liquid and liquid. Centrifuge is applied to departments such as chemical industry, petroleum, food, pharmacy, ore dressing, coal, water treatment and boats and ships in a large number, high-speed moving centrifuge motor drives rotor and load and rotates, because the unbalance of load, centrifuge motor is at the quick start-up in-process, because the unbalance of load, produce great torsion between the rotor of messenger load and centrifuge motor, do not have a fine buffer structure between the transmission, lead to rotating system to take place vibrations easily, arouse the noise and the vibrations of centrifuge complete machine, the damping method effect of prior art is not very ideal, in the long run, can cause the damage to centrifuge. Therefore, we propose a transmission for reducing the vibration of a centrifuge.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a transmission for reducing centrifuge vibrations, simple structure, the centrifugation rotates the in-process and can play good cushioning effect, makes the unbalanced load in the centrifuge tube slowly get into high-speed centrifugation state, and then reduces the vibrations that the high-speed rotation brought suddenly when centrifuge starts, realizes reducing the noise and the vibrations of centrifuge complete machine, plays good guard action to centrifuge.

The utility model provides a following technical scheme: the utility model provides a transmission for reducing centrifuge vibrations, includes the connecting block, the connecting block is fixed in the axis of rotation, axis of rotation fixed connection is on driving motor's output, and driving motor fixes in the centrifuge shell, the top that is located driving motor in the centrifuge shell is equipped with the centrifuge bowl, the bottom central point of centrifuge bowl puts and is equipped with the boss, the boss is equipped with the fixed slot towards one side of axis of rotation, the fixed slot internal fixation is equipped with first bearing, the inner ring fixed connection of first bearing is in the axis of rotation, the bottom of centrifuge bowl is equipped with the dashpot of a circular structure, the connecting block is located the central point of dashpot and puts, and is connected with a plurality of elastic components between dashpot and the connecting block.

Preferably, the number of the elastic members is two, and the elastic members are volute springs, and the two volute springs are symmetrically wound on the outer side of the connecting block.

Preferably, first hanging grooves are symmetrically formed in two sides of the connecting block, second hanging grooves are formed in the two sides of the buffer groove corresponding to the first hanging grooves, hooks are arranged at two ends of the elastic piece, and the hooks on two sides of the elastic piece are respectively fixedly hung in the first hanging grooves and the second hanging grooves on the corresponding side.

Preferably, a second bearing is connected between the centrifuge housing and the centrifuge bowl, an outer ring of the second bearing is fixed on an inner wall of the centrifuge housing, and an inner ring of the second bearing is fixed on an outer wall of the centrifuge bowl.

Preferably, be equipped with in the centrifuge bowl rather than the internal diameter assorted centrifugation bracket, the top surface of centrifugation bracket is the frustum structure of coniform, be equipped with a plurality of test tube standing grooves on the centrifugation bracket and be located the frustum circumference of coniform.

Preferably, be equipped with supporting spring in the test tube standing groove, supporting spring's one end is fixed in the bottom of test tube standing groove, and other end fixedly connected with backup pad, backup pad sliding connection is in the test tube standing groove.

The utility model has the advantages that: simple structure can play good cushioning effect among the centrifugal rotation process, makes unbalanced load can slowly get into high-speed centrifugation state in the centrifuge bowl, and then reduces the vibrations that the high-speed rotation suddenly brought when centrifuge starts, realizes reducing the noise and the vibrations of centrifuge complete machine, plays good guard action to centrifuge, specifically as follows:

(1) when the centrifugal machine is arranged and used, the elastic piece is additionally arranged between the rotating shaft and the centrifugal cylinder, and the elastic piece can play a good buffering role in the centrifugal rotating process, so that unbalanced load in the centrifugal cylinder can slowly enter a high-speed centrifugal state, further the vibration caused by sudden high-speed rotation when the centrifugal machine is started is reduced, and the noise and the vibration of the whole centrifugal machine are reduced;

(2) the utility model discloses the symmetry sets up the elastic component, and the elastic component adopts the volute spring can effectively cushion driving motor's output kinetic energy to realize playing good cushioning effect to the rotation of centrifuge bowl, can make the centrifuge bowl can not immediately follow its rotation at driving motor, but slowly send kinetic energy to the centrifuge bowl by the elastic component, and when the centrifuge bowl started rotating, slowly rotated earlier and then slowly rose fast, keeps unanimous with driving motor's rotational speed at last, drives the vibrations that the high-speed rotation of centrifuge bowl brought suddenly like this effectively to reduce when centrifuge starts;

(3) the utility model is provided with the first hanging groove and the second hanging groove, which facilitate the fixed installation of the elastic piece, when the elastic piece is installed, the hooks at the two ends of the elastic piece can be directly hung in the first hanging groove and the second hanging groove respectively, so that the installation and the disassembly of the elastic piece are convenient and rapid;

(4) the centrifugal cylinder is provided with the second bearing, the second bearing can improve the rotation stability of the centrifugal cylinder, can ensure the stable high-speed rotation of the centrifugal cylinder in the shell of the centrifugal machine, and improves the stability of the centrifugal machine;

(5) the utility model is provided with a centrifugal bracket which is used for placing a test tube for centrifugation;

(6) the utility model discloses set up supporting spring, be used for the centrifugal test tube of elastic support, when the test tube is placed in the test tube standing groove, the test tube is located the position that the test tube standing groove is close to centrifuge tube center, the focus that makes the test tube like this is close to centrifuge tube center, the rotation that favourable centrifuge tube began, the centrifugation crescent that the test tube received after rotating at a high speed along with the centrifuge tube, can slowly compress supporting spring and slide the bottom of test tube standing groove, at this in-process, the centrifugal force that the test tube received is also bigger and bigger, its centrifugal effect is also more obvious, on the other hand test tube its focus gradual change from inside to outside in centrifugation process has also further improved centrifugal stability, reduce the factor of vibrations.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is an internal cross-sectional view of the present invention;

FIG. 2 is a partially cut-away perspective view of the present invention;

FIG. 3 is a schematic view of the connection structure of the elastic member according to the present invention;

labeled as: the centrifugal tube centrifuge comprises a centrifuge shell 1, a driving motor 2, a rotating shaft 3, a connecting block 4, a first bearing 5, a centrifuge tube 6, a boss 7, a fixing groove 8, a buffer groove 9, a first hanging groove 10, a second hanging groove 11, an elastic piece 12, a hook 13, a second bearing 14, a centrifuge bracket 15, a test tube placing groove 16, a supporting spring 17 and a supporting plate 18.

Detailed Description

The present invention will be further described with reference to the following specific examples. These examples are provided only for illustrating the present invention and are not intended to limit the scope of the present invention. In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The structural features of the present invention will now be described in detail with reference to the accompanying drawings.

Referring to fig. 1-3, a transmission device for reducing vibration of a centrifuge, including a connection block 4, the connection block 4 is fixed on a rotation shaft 3, the rotation shaft 3 is fixedly connected to an output end of a driving motor 2, the driving motor 2 is fixed in a centrifuge housing 1, a centrifuge tube 6 is arranged in the centrifuge housing 1 and above the driving motor 2, a boss 7 is arranged at a bottom center position of the centrifuge tube 6, one side of the boss 7 facing the rotation shaft 3 is provided with a fixing groove 8, a first bearing 5 is fixedly arranged in the fixing groove 8, an inner ring of the first bearing 5 is fixedly connected to the rotation shaft 3, a buffer groove 9 of a circular structure is arranged at the bottom of the centrifuge tube 6, the connection block 4 is located at a center position of the buffer groove 9, and a plurality of elastic members 12 are connected between the buffer groove 9 and the connection.

The utility model discloses a transmission for reducing centrifuge vibrations, simple structure, the centrifugation rotates the in-process and can play good cushioning effect, makes unbalanced load slowly get into high-speed centrifugation state in the centrifuge tube, and then reduces the vibrations that the sudden high-speed rotation brought when centrifuge starts, realizes reducing the noise and the vibrations of centrifuge complete machine, plays good guard action to centrifuge.

Specifically, when the centrifugal machine is used, the elastic piece 12 is additionally arranged between the rotating shaft 3 and the centrifugal cylinder 6, and the elastic piece 12 can play a good buffering role in the centrifugal rotating process, so that unbalanced load in the centrifugal cylinder 6 can slowly enter a high-speed centrifugal state, vibration caused by sudden high-speed rotation when the centrifugal machine is started is further reduced, and noise and vibration of the whole centrifugal machine are reduced.

Referring to fig. 2 and 3, further, the number of the elastic members 12 is two, and the elastic members 12 are volute springs, and the two volute springs are symmetrically wound around the outside of the joint block 4.

Set up elastic component 12, elastic component 12 adopts the volute spring can effectively cushion driving motor 2's output kinetic energy, thereby realize playing good cushioning effect to the rotation of centrifuge bowl 6, can make centrifuge bowl 6 can not immediately follow its rotation at driving motor 2, but slowly send kinetic energy to centrifuge bowl 6 by elastic component 12, centrifuge bowl 6 is when the beginning rotation, slowly rotate earlier then the speed slowly risees, keep unanimous with driving motor 2's rotational speed at last, drive the vibrations that centrifuge bowl 6 high-speed rotation brought suddenly when effectively reducing centrifuge start like this.

Referring to fig. 3, further, first hanging grooves 10 are symmetrically arranged on two sides of the connecting block 4, second hanging grooves 11 are arranged on two sides of the buffer groove 9 corresponding to the first hanging grooves 10, hooks 13 are arranged at two ends of the elastic member 12, and the hooks 13 on two sides of the elastic member 12 are respectively hung and fixed in the first hanging grooves 10 and the second hanging grooves 11 on one corresponding side.

The first hanging groove 10 and the second hanging groove 11 are arranged to facilitate the fixed installation of the elastic part 12, and when the elastic part 12 is installed, the hooks 13 at two ends of the elastic part 12 can be directly hung in the first hanging groove 10 and the second hanging groove 11 respectively, so that the elastic part 12 can be installed and disassembled conveniently and quickly.

Referring to fig. 1 and 2, further, a second bearing 14 is connected between the centrifuge housing 1 and the centrifuge bowl 6, an outer ring of the second bearing 14 is fixed on an inner wall of the centrifuge housing 1, and an inner ring of the second bearing 14 is fixed on an outer wall of the centrifuge bowl 6.

The second bearing 14 is arranged, and the second bearing 14 can improve the rotation stability of the centrifugal cylinder 6, ensure the stable high-speed rotation of the centrifugal cylinder 6 in the centrifuge shell 1 and improve the stability of the centrifuge.

Referring to fig. 2, further, a centrifugal bracket 15 is arranged in the centrifugal cylinder 6 and has an inner diameter matched with the centrifugal cylinder, the top surface of the centrifugal bracket 15 is in a cone-shaped platform structure, and a plurality of test tube placing grooves 16 are arranged on the centrifugal bracket 15 and positioned on the periphery of the cone-shaped platform.

A centrifuge holder 15 is provided, and the centrifuge holder 15 is used for holding a test tube for centrifugation.

Referring to fig. 1 and 2, further, a supporting spring 17 is disposed in the test tube placing groove 16, one end of the supporting spring 17 is fixed at the bottom of the test tube placing groove 16, the other end is fixedly connected with a supporting plate 18, and the supporting plate 18 is slidably connected in the test tube placing groove 16.

Set up supporting spring 17, be used for the centrifugal test tube of elastic support, when the test tube is placed in test tube standing groove 16, the test tube is located test tube standing groove 16 and is close to the position at centrifuge tube 6 center, the focus that makes the test tube like this is close to centrifuge tube 6 center, the rotation that favourable centrifuge tube 6 begins, the centrifugation that the test tube received increases gradually along with centrifuge tube 6 high-speed rotation back, can slowly compress supporting spring 17 and slide to the bottom of test tube standing groove 16, at this in-process, the centrifugal force that the test tube received is also bigger and bigger, its centrifugal effect is also more obvious, on the other hand test tube is its focus in the centrifugation process from inside to outside gradual change has also further improved centrifugal stability, reduce the factor of vibrations.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a transmission for reducing centrifuge vibrations, includes connecting block (4), its characterized in that, connecting block (4) are fixed on axis of rotation (3), axis of rotation (3) fixed connection is on the output of driving motor (2), and driving motor (2) are fixed in centrifuge housing (1), the top that is located driving motor (2) in centrifuge housing (1) is equipped with centrifuge tube (6), be equipped with boss (7) on the bottom central point of centrifuge tube (6) puts, boss (7) are equipped with fixed slot (8) towards one side of axis of rotation (3), fixed slot (8) internal fixation is equipped with first bearing (5), the inner ring fixed connection of first bearing (5) is on axis of rotation (3), the bottom of centrifuge tube (6) is equipped with buffer slot (9) of a circular structure, connecting block (4) are located the central point of buffer slot (9), and a plurality of elastic pieces (12) are connected between the buffer groove (9) and the connecting block (4).

2. A transmission for reducing the vibrations of centrifuges according to claim 1, characterized in that the number of said elastic members (12) is two, and that the elastic members (12) are volute springs, and that the two volute springs are symmetrically wound around the outside of the connecting piece (4).

3. The transmission device for reducing the vibration of the centrifugal machine according to claim 1, wherein first hanging grooves (10) are symmetrically arranged on two sides of the connecting block (4), second hanging grooves (11) are arranged on two sides of the buffer groove (9) corresponding to the positions of the first hanging grooves (10), hooks (13) are arranged at two ends of the elastic member (12), and the hooks (13) on two sides of the elastic member (12) are respectively hung and fixed in the first hanging grooves (10) and the second hanging grooves (11) on one corresponding side.

4. A transmission device for reducing the vibrations of a centrifuge as claimed in claim 1, characterized in that a second bearing (14) is connected between the centrifuge housing (1) and the centrifuge bowl (6), the outer ring of the second bearing (14) being fixed to the inner wall of the centrifuge housing (1) and the inner ring of the second bearing (14) being fixed to the outer wall of the centrifuge bowl (6).

5. The transmission device for reducing the vibration of the centrifugal machine according to claim 1, characterized in that a centrifugal bracket (15) matched with the inner diameter of the centrifugal cylinder (6) is arranged in the centrifugal cylinder, the top surface of the centrifugal bracket (15) is in a cone-shaped platform structure, and a plurality of test tube placing grooves (16) are formed in the centrifugal bracket (15) and are positioned on the periphery of the cone-shaped platform.

6. A transmission device for reducing the vibration of a centrifuge according to claim 5, characterized in that a support spring (17) is arranged in the test tube placing groove (16), one end of the support spring (17) is fixed at the bottom of the test tube placing groove (16), the other end is fixedly connected with a support plate (18), and the support plate (18) is slidably connected in the test tube placing groove (16).