Transmission device of centrifugal machine

Abstract

The utility model provides a transmission device of a centrifugal machine. The transmission device comprises a transmission cylinder and a transmission shaft arranged in the transmission cylinder in a sleeved mode. One end of the elastic piece is connected with the top end of the transmission cylinder, and the other end of the elastic piece is connected with the bearing adjacent to the top end of the transmission cylinder. According to the centrifugal machine, the stability of the transmission shaft in the operation process of the centrifugal machine can be guaranteed, and abrasion and loss of the bearing can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of centrifuges, in particular to a transmission device of a centrifuge. Background Art

[0002] In the prior art, the transmission device of the centrifuge is provided with a transmission cylinder and a transmission shaft. The transmission shaft is arranged in the transmission cylinder through a bearing. Generally, the bearing is fixedly arranged between the transmission cylinder and the transmission shaft. When the centrifuge rotates at high speed, the bearing rotates and vibrates under the drive of the main shaft rotation, but the fixed position of the bearing restricts it, and the bearing is easy to wear and loss.

[0003] The utility model with publication number CN 217411123 U discloses a transmission mechanism in a vertical centrifuge, including: a main shaft and a cylindrical bearing seat, a support cylinder is inserted into the cylindrical bearing seat, the main shaft is arranged in the support cylinder through upper and lower bearings, a shaft sleeve and a liquid guide sleeve are sequentially sleeved on the outer side of the upper bearing of the main shaft, and an upper bearing inner pressure cover is sleeved on the shaft sleeve. However, the upper bearing and the lower bearing are both fixed in the support cylinder, and the bearings are easily damaged when rotating at high speed. Utility Model Content

[0004] The utility model aims to solve the defects in the prior art and provide a transmission device for a centrifuge, which can ensure the stability of the transmission shaft during the operation of the centrifuge and reduce the wear and loss of the bearings.

[0005] To achieve the above-mentioned purpose, the utility model provides a transmission device for a centrifuge, comprising a transmission cylinder, a transmission shaft arranged in the transmission cylinder;

[0006] A bearing and an elastic member are sleeved on the outside of the transmission shaft. One end of the elastic member is connected to the transmission cylinder, and the other end is connected to the bearing.

[0007] In the utility model, since there is a gap between the transmission shaft and the transmission cylinder, the arrangement of the bearing can prevent the transmission shaft from shaking, thereby ensuring the stability of the transmission shaft during the centrifugal rotation process.

[0008] The bearings are elastically limited by elastic parts. When the bearings rotate at high speed, if the bearings are fixed on the transmission tube and the transmission shaft, the bearings are easily damaged due to the restrictions. Therefore, by setting elastic parts, the bearings and the shaft have a certain axial activity margin, which can reduce the wear and damage of the bearings.

[0009] Optionally, the bearing includes a first bearing and a second bearing, the first bearing is arranged above the second bearing, and the elastic member is connected to the first bearing.

[0010] Optionally, a limit block is provided under the first bearing, and the limit block is used to limit the lowest position of the first bearing.

[0011] Optionally, the second bearing is fixedly arranged on the transmission cylinder.

[0012] Optionally, the transmission device further comprises a coupling, the transmission shaft is connected to the coupling, and the transmission shaft is connected to a driving member of the centrifuge via the coupling.

[0013] Optionally, a shock-absorbing sleeve is provided on the outer sleeve of the transmission cylinder. When the transmission device is installed on a centrifuge, the shock-absorbing sleeve is located between the transmission cylinder and the centrifuge, which reduces the vibration amplitude of the transmission device during operation and stabilizes the entire transmission device.

[0014] Beneficial effects:

[0015] In the utility model, since there is a gap between the transmission shaft and the transmission barrel, the setting of the bearing can avoid the shaking of the transmission shaft and ensure the stability of the transmission shaft during the centrifugal rotation. The bearing adopts an elastic member for elastic limit. When the bearing rotates and vibrates at high speed, if the bearing is fixedly set on the transmission barrel and the transmission shaft, the bearing is easily damaged due to the restriction. Therefore, by setting the elastic member, the bearing and the shaft have a certain axial activity margin, which can reduce the wear and damage of the bearing. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0017] Figure 1 It is a structural diagram of the transmission device of the centrifuge disclosed in the utility model;

[0018] Figure 2 An exploded view of the transmission device of the centrifuge disclosed in the utility model installed on the centrifuge;

[0019] Figure 3 The utility model is a structural diagram of a transmission device of a centrifuge installed on the centrifuge.

[0020] Reference numerals:

[0021] 1 transmission device; 11 transmission cylinder; 12 shock-absorbing sleeve; 13 coupling; 14 transmission shaft; 15 first bearing; 16 second bearing; 17 elastic member; 18 limit block; 2 centrifuge.

[0022] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with the implementation methods and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] In the description of the present utility model, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present utility model based on the specific content of the technical solution.

[0025] In the description of the present invention, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0026] See also Figure 1 and 2 According to an embodiment of the present utility model, a transmission device of a centrifuge includes a transmission cylinder 11 and a transmission shaft 14 disposed in the transmission cylinder 11;

[0027] The transmission shaft 14 is externally sleeved with a bearing and an elastic member 17 . One end of the elastic member 17 is connected to the transmission cylinder 11 , and the other end is connected to the bearing.

[0028] Specifically, in the present invention, since there is a gap between the transmission shaft 14 and the transmission cylinder 11, the arrangement of the bearing can prevent the transmission shaft 14 from shaking, thereby ensuring the stability of the transmission shaft 14 during the centrifugal rotation process.

[0029] The bearing is elastically limited by an elastic member 17. When the bearing is running at high speed, if the bearing is fixedly arranged on the transmission cylinder 11 and the transmission shaft 14, the bearing is easily damaged. Therefore, by arranging the elastic member 17, the bearing and the shaft have a certain axial activity margin, which can reduce the wear and damage of the bearing.

[0030] See also Figure 1 and 2In some embodiments of the present invention, the bearing includes a first bearing 15 and a second bearing 16 , the first bearing 15 is arranged above the second bearing 16 , and the elastic member 17 is connected to the first bearing 15 .

[0031] See also Figure 1 In some embodiments of the present invention, a limit block 18 is provided below the first bearing 15 , and the limit block 18 is used to limit the lowest position of the first bearing 15 .

[0032] See also Figure 1 and 2 In some embodiments of the present invention, the second bearing 16 is fixedly arranged on the transmission cylinder 11. Optionally, a limit block 18 may be arranged above the second bearing 16, and an elastic member 17 may be arranged between the second bearing 16 and the bottom end of the transmission cylinder 11, so that the second bearing 16 is elastically limited below, so that the second bearing 16 also has a certain axial activity margin.

[0033] See also Figure 1 and 2 In some embodiments of the present invention, the transmission device further includes a coupling 13, the transmission shaft 14 is connected to the coupling 13, and the transmission shaft 14 is connected to a driving member of the centrifuge through the coupling 13.

[0034] See also Figure 1 and 2 In some embodiments of the present invention, the transmission cylinder 11 is provided with a shock-absorbing sleeve 12. When the transmission device is installed on the centrifuge, the shock-absorbing sleeve 12 is located between the transmission cylinder 11 and the centrifuge, which reduces the vibration amplitude of the transmission device during operation and stabilizes the entire transmission device.

[0035] See also Figure 2 and 3 , the transmission device 1 of the centrifuge is installed on the centrifuge 2.

[0036] The above are only preferred embodiments of the present invention, and do not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the utility model concept, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A transmission device for a centrifuge, characterized in that: It comprises a transmission cylinder (11) and a transmission shaft (14) arranged in the transmission cylinder (11); The transmission shaft (14) is externally sleeved with a bearing and an elastic member (17); one end of the elastic member (17) is connected to the transmission cylinder (11), and the other end is connected to the bearing.

2. The transmission device of the centrifuge according to claim 1, characterized in that: The bearing comprises a first bearing (15) and a second bearing (16), the first bearing (15) is arranged above the second bearing (16), and the elastic member (17) is connected to the first bearing (15).

3. The transmission device of the centrifuge according to claim 2, characterized in that: A limiting block (18) is provided below the first bearing (15).

4. The transmission device of the centrifuge according to claim 2, characterized in that: The second bearing (16) is fixedly arranged on the transmission cylinder (11).

5. The transmission device of the centrifuge according to claim 1, characterized in that: It also includes a coupling (13), and the transmission shaft (14) is connected to the coupling (13).

6. The transmission device of the centrifuge according to claim 1, characterized in that: The transmission cylinder (11) is externally sleeved with a shock absorbing sleeve (12).

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