Integrated cast steel bearing chamber of centrifugal machine

Abstract

The utility model discloses an integrated cast steel bearing chamber of a centrifugal machine, which aims to overcome the defects in the prior art and provides a bearing chamber which is compact in structure and convenient to maintain, the bearing chamber adopts an integrated cast steel structure and comprises a front end part, a middle end part and a rear end part to form an integrated structure, the front end part is provided with a front end bearing chamber, and the rear end part is provided with a rear end bearing chamber. A plurality of front mounting grooves are formed in the front end bearing chamber and used for mounting front bearings and fixing the front bearings through front sealing glands, and a plurality of rear mounting grooves are formed in the rear end bearing chamber and used for mounting rear bearings and fixing the rear bearings through rear sealing glands.

Description

TECHNICAL FIELD

[0001] The utility model relates to centrifuge technical field, and specifically is centrifuge integrated cast steel bearing chamber. BACKGROUND

[0002] As a kind of equipment widely used in chemical industry, pharmacy, food and other industries, one of its core components is bearing system, and the design of bearing system directly influences the running stability, service life and maintenance convenience of centrifuge, and the bearing chamber of traditional centrifuge is mostly welded structure, as shown in FIG. Figure 1 It has certain rigidity and bearing capacity, but it has the following shortcomings:

[0003] 1. The traditional bearing chamber is usually welded by multiple components, and stress concentration is prone to occur at joint, which reduces the strength of overall structure, in addition, stress deformation may be introduced in welding process, which affects the precision and stability of bearing chamber;

[0004] 2. Due to the limitation of welding process, the assembly precision of traditional bearing chamber is difficult to guarantee, especially in long-term use process, bearing is prone to looseness, which leads to increased vibration of centrifuge, and affects the running stability of equipment;

[0005] 3. Due to the need for complex welding and subsequent mechanical processing technology, the production cycle is long, and the processing cost is high, at the same time, due to the existence of multiple processes, labor cost is also relatively expensive, which affects the overall production efficiency;

[0006] 4. In traditional design, bearing is usually installed in the form of interference fit. Although this installation method can provide strong fixing force, once the bearing needs to be replaced, due to the close fit between the bearing and the bearing chamber, the disassembly and replacement process is cumbersome, which increases the maintenance cost and downtime of equipment. INVENTION CONTENTS

[0007] In view of the above shortcomings in the prior art, the utility model aims to provide a bearing chamber with integrated structure and convenient maintenance for centrifuge.

[0008] The technical scheme adopted by the utility model to achieve the above-mentioned purpose is: centrifuge integrated cast steel bearing chamber, comprising front end, middle end and rear end, the front end, middle end and rear end constitute a bearing chamber in an integrated structure, the front end is provided with front end bearing chamber, the rear end is provided with rear end bearing chamber, and the rear end is provided with shaft sleeve chamber between the rear end bearing chamber and the front end bearing chamber;

[0009] The front end bearing chamber is provided with a front mounting groove, and the front end is provided with a front sealing gland matched with the front mounting groove;

[0010] The rear end part is provided with a rear sealing gland matched with the rear mounting slot.

[0011] In the above technical solution, the front end part is fixedly connected with a conical cover through a bolt A;

[0012] The rear end part is fixedly connected with a rear sealing end cover through a bolt B.

[0013] In the above technical solution, the front end bearing chamber is arranged with a plurality of groups of the front mounting slots in a ring array, the front end bearing chamber is matched with a front bearing, the outer ring of the front bearing is provided with a front mounting block matched with the front mounting slot, the front bearing is located in the front end bearing chamber, and the front mounting block is embedded in the front mounting slot, the front sealing gland is fixedly connected on the front end part, and the front sealing gland presses down the front bearing.

[0014] In the above technical solution, the rear end bearing chamber is arranged with a plurality of groups of the rear mounting slots in a ring array, the rear end bearing chamber is matched with a rear bearing, the outer ring of the rear bearing is provided with a rear mounting block matched with the rear mounting slot, the rear bearing is located in the rear end bearing chamber, and the rear mounting block is embedded in the rear mounting slot, the rear sealing gland is fixedly connected on the rear end part, and the rear sealing gland presses down the rear bearing.

[0015] In the above technical solution, the front sealing gland is fixedly connected on the front end part through a bolt C;

[0016] The rear sealing gland is fixedly connected on the rear end part through a bolt D.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] 1. The bearing chamber is integrally formed in a pouring mode, the integrally formed bearing chamber is firm, durable, compact in size, high in assembly precision, better in centrifuge stability, short in production cycle, saves labor, and in particular, the weight of the blank is greatly reduced compared with the welded bearing box.

[0019] 2. The front bearing is slidingly installed in the front end bearing chamber in the bearing chamber, and the front bearing is fixedly pressed down by the front sealing gland, and the rear bearing is slidingly installed in the rear end bearing chamber of the bearing chamber, and the rear bearing is fixedly pressed down by the rear sealing gland, so that the installation structure is different from the existing interference fit installation mode, the bearing is more convenient to replace, and the maintenance of the centrifuge is more convenient. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a bearing chamber structure schematic diagram in the prior art;

[0021] Figure 2 It is the structure schematic view of the bearing chamber after installation in the utility model;

[0022] Figure 3 It is the structure schematic view of the bearing chamber in the utility model;

[0023] Figure 4 It is Figure 2 The detail structure schematic view of a part in the utility model;

[0024] Figure 5 It is Figure 2 The detail structure schematic view of b part in the utility model;

[0025] Figure 6 It is Figure 3 The detail structure schematic view of c part in the utility model;

[0026] Figure 7 It is Figure 3 The detail structure schematic view of d part in the utility model;

[0027] Figure 8 It is the structure schematic view of the front bearing or the rear bearing in the utility model.

[0028] In the drawing: 100 front end part, 101 front end bearing chamber, 102 front installation slot, 103 front bearing, 104 front installation block, 105 front sealing gland, 106 bolt C, 200 middle end part, 300 rear end part, 301 rear end bearing chamber, 302 shaft sleeve chamber, 303 rear installation slot, 304 rear bearing, 305 rear installation block, 306 rear sealing gland, 307 bolt D, 400 bolt A, 500 conical cover, 600 bolt B, 700 rear sealing end cover, 800 main shaft. DETAILED DESCRIPTION

[0029] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0030] Please refer to Figure 2 8, centrifuge integrated cast steel bearing chamber, including front end part 100, middle end part 200 and rear end part 300, here, the front end part 100, the middle end part 200 and the rear end part 300 are made of integrated cast steel pouring structure to constitute the bearing chamber, and the front end bearing chamber 101 is provided on the front end part 100, the rear end bearing chamber 301 is provided on the rear end part, and the shaft sleeve chamber 302 is provided between the rear end bearing chamber 301 and the front end bearing chamber 101 on the rear end part 300;

[0031] In addition, the front end part 100 is also fixedly connected with a conical cover 500 through bolts A400, and the rear end part 300 is fixedly connected with a rear sealing end cover 700 through bolts B600;

[0032] In addition, the front end bearing chamber 101 is arranged with a plurality of groups of front mounting grooves 102 in a ring array, the front end bearing chamber 101 is matched with a front bearing 103, the outer ring of the front bearing 103 is provided with a front mounting block 104 matched with the front mounting groove 102, the front bearing 103 is located in the front end bearing chamber 101, and the front mounting block 104 is embedded in the front mounting groove 102, the front end part 100 is provided with a front sealing gland 105 matched with the front mounting groove 102, the front sealing gland 105 is fixedly connected to the front end part 100, and the front sealing gland 105 presses the front bearing 103 downward, and the front sealing gland 105 is fixedly connected to the front end part 100 through bolts C106;

[0033] In addition, the rear end bearing chamber 301 is arranged with a plurality of groups of rear mounting grooves 303 in a ring array, the rear end bearing chamber 301 is matched with a rear bearing 304, the outer ring of the rear bearing 304 is provided with a rear mounting block 305 matched with the rear mounting groove 303, the rear bearing 304 is located in the rear end bearing chamber 301, and the rear mounting block 305 is embedded in the rear mounting groove 303, the rear end part 300 is provided with a rear sealing gland 306 matched with the rear mounting groove 303, the rear sealing gland 306 is fixedly connected to the rear end part 300, and the rear sealing gland 306 presses the rear bearing 304 downward, and the rear sealing gland 306 is fixedly connected to the rear end part 300 through bolts D307.

[0034] In summary, the centrifuge integrated cast steel bearing chamber disclosed in the embodiment is mainly used for installing the main shaft 800 of the centrifuge, specifically, the front bearing 103 can be installed in the front end bearing chamber 101, and the front bearing 103 is fixedly pressed by the front sealing gland 105, then the intermediate shaft sleeve is installed in the shaft sleeve chamber 302, finally, the rear bearing 304 is installed in the rear bearing chamber 304, and the rear bearing 304 is fixedly pressed by the rear sealing gland 306, the main shaft 800 is installed on the bearing chamber through the front bearing 103 and the rear bearing 304, the conical cover 500 is fixedly installed on the front end part 100, and the rear sealing end cover 700 is fixedly installed on the rear end part 300;

[0035] The bearing chamber adopts an integrated pouring structure, which can make the structure firm, durable, compact in size, high in assembly precision, better in centrifuge stability, short in production cycle, and labor-saving, especially the blank weight is greatly reduced compared with the welded bearing box, and the blank material cost of each centrifuge is saved by 4550 yuan, and the machining cost of the original built-in cast steel bearing chamber is reduced by about 450 yuan, the total material cost and machining cost of each centrifuge is saved by about 5000 yuan, and according to the annual output of 60 HR400-N centrifuges, the production cost can be saved by about 300,000 yuan per year;

[0036] In the structure, the front bearing 103 is slidably installed in the front end bearing chamber 101 in the bearing chamber, and the front bearing 103 is fixed by the front sealing gland 105, and the rear bearing 304 is slidably installed in the rear end bearing chamber 301 in the bearing chamber, and the rear bearing 304 is fixed by the rear sealing gland 306. Such installation structure is different from the existing interference fit installation method, and is more convenient for replacing the bearing, so that the maintenance of the centrifuge is more convenient, and the after-sales service of the sold goods of the company is facilitated.

[0037] For those skilled in the art, it is obvious that the present application is not limited to the details of the above exemplary embodiments, and can be realized in other specific forms without departing from the spirit or basic characteristics of the present application. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, the scope of the present application is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims.

[0038] In addition, it should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be combined appropriately to form other embodiments that those skilled in the art can understand.

Claims

1. Centrifuge integrated cast steel bearing chamber, characterized by: The invention comprises a front end portion (100), a middle end portion (200) and a rear end portion (300), wherein the front end portion (100), the middle end portion (200) and the rear end portion (300) form a bearing chamber in an integrated structure, the front end portion (100) is provided with a front end bearing chamber (101), the rear end portion (300) is provided with a rear end bearing chamber (301), and the rear end portion (300) is provided with a sleeve chamber (302) between the rear end bearing chamber (301) and the front end bearing chamber (101); A front mounting groove (102) is provided on the front bearing chamber (101), and a front sealing gland (105) is provided on the front end portion (100) to cooperate with the front mounting groove (102); A rear mounting groove (303) is provided on the rear end bearing chamber (301), and a rear sealing gland (306) is provided on the rear end portion (300) to cooperate with the rear mounting groove (303).

2. The centrifuge integrated cast steel bearing chamber according to claim 1, characterized in that: The front end portion (100) is fixedly connected to a cone cover (500) via a bolt A (400); The rear end portion (300) is fixedly connected to a rear sealing end cover (700) via a bolt B (600).

3. The centrifuge integrated cast steel bearing chamber according to claim 1, characterized in that: A plurality of groups of front mounting grooves (102) are arranged in a circular array on the front bearing chamber (101), the front bearing chamber (101) is matched with a front bearing (103), and a front mounting block (104) is provided on the outer ring of the front bearing (103) to match the front mounting groove (102). The front bearing (103) is located in the front bearing chamber (101), and the front mounting block (104) is embedded in the front mounting groove (102). The front sealing cover (105) is fixedly connected to the front end portion (100), and the front sealing cover (105) presses down the front bearing (103).

4. The centrifuge integrated cast steel bearing chamber according to claim 3, characterized in that: A plurality of groups of rear mounting grooves (303) are arranged in a circular array on the rear end bearing chamber (301), the rear end bearing chamber (301) is matched with a rear bearing (304), a rear mounting block (305) is provided on the outer ring of the rear bearing (304) and matched with the rear mounting groove (303), the rear bearing (304) is located in the rear end bearing chamber (301), and the rear mounting block (305) is embedded in the rear mounting groove (303), the rear sealing cover (306) is fixedly connected to the rear end portion (300), and the rear sealing cover (306) presses down the rear bearing (304).

5. The centrifuge integrated cast steel bearing chamber according to claim 4, characterized in that: The front sealing gland (105) is fixedly connected to the front end portion (100) via bolts C (106); The rear sealing gland (306) is fixedly connected to the rear end portion (300) via bolts D (307).

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