Screen fixing device of centrifugal machine
Patent Information
- Application Number
- CN202421647920.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-12
- Publication Date
- 2025-02-28
- Estimated Expiration
- 2034-07-12
AI Technical Summary
The screen of existing centrifuges is not connected firmly to the sleeve, which causes the screen to easily slide out of the sleeve during rotation.
A screen fixing device is designed, including a first bracket, a second bracket and a connecting rod, through these components, forming a fixing frame to abut against the inner wall surface of the cylindrical screen, increasing the abutment pressure between the screen and the sleeve, and increasing friction.
It effectively avoids the screen sliding and falling off from the sleeve during working process, increases the structural strength of the screen, reduces deformation, and ensures the normal operation of the screen.
Smart Images
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Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of centrifuge production, and in particular relates to a screen fixing device for a centrifuge. Background Art
[0002] In the prior art, the screen of the centrifuge used to separate gypsum slag is cylindrical. The centrifuge is provided with a rotating frame having a sleeve. The screen is arranged in the sleeve, and the screen abuts against the inner wall of the sleeve. The rotating frame is driven to rotate by a motor. After gypsum slag is passed through the cylindrical screen, the gypsum slag is separated into coarse and fine gypsum slag as the screen rotates.
[0003] The connection between the screen and the sleeve is only through the abutment between the screen and the inner wall of the sleeve. Since the connection between the screen and the sleeve is not firm, during the rotation of the screen and under the impact of gypsum slag, the screen will move along the extension direction of the sleeve and slide out of the sleeve. Utility Model Content
[0004] In order to solve or partially solve the problems existing in the related art, the utility model provides a screen fixing device for a centrifuge, which can prevent the screen from falling off from the rotating frame during operation.
[0005] The present application provides a centrifuge screen fixing device for abutting against the inner wall surface of a cylindrical screen, comprising: a first bracket, a second bracket, and a connecting rod;
[0006] The first bracket includes a first connecting rod and a second connecting rod; the first connecting rod is arc-shaped; both ends of the first connecting rod are provided with a first threaded hole; one end of the second connecting rod is fixedly connected to the middle position of the first connecting rod, and the other end is provided with a second threaded hole;
[0007] The second bracket includes a third connecting rod and a fourth connecting rod; the third connecting rod is arc-shaped; both ends of the third connecting rod are provided with a third threaded hole; one end of the fourth connecting rod is fixedly connected to the middle position of the third connecting rod, and the other end is provided with a fourth threaded hole;
[0008] The connecting rod has a first connecting portion and a second connecting portion; the first connecting portion and the second connecting portion are both provided with threads, and the threads are opposite to each other;
[0009] The number of the connecting rods, the first brackets, and the second brackets are all multiple; multiple first connecting rods are connected end to end in sequence through the corresponding connecting rods to form a ring; multiple third connecting rods are connected end to end in sequence through the corresponding connecting rods to form a ring; the second connecting rod and the fourth connecting rod are connected together through the corresponding connecting rods.
[0010] The corresponding first threaded holes of the two connected first connecting rods are respectively threadedly connected to the first connecting portion and the second connecting portion of a portion of the connecting rod in a one-to-one correspondence; the corresponding third threaded holes of the two connected third connecting rods are respectively threadedly connected to the first connecting portion and the second connecting portion of a portion of the connecting rod in a one-to-one correspondence;
[0011] In the connected second connecting rod and fourth connecting rod, the corresponding second threaded holes and fourth threaded holes are respectively threadedly connected with the first connecting portion and the second connecting portion of a portion of the connecting rod in a one-to-one correspondence.
[0012] In one embodiment, the first bracket and the second bracket have the same structure.
[0013] In one embodiment, the number of the first brackets and the number of the second brackets are three, and the number of the connecting rods is nine; the three first connecting rods are sequentially enclosed to form a circle, and the corresponding connecting rod connects two adjacent first connecting rods together; the three third connecting rods are sequentially enclosed to form a circle, and the corresponding connecting rod connects two adjacent third connecting rods together; the three second connecting rods and the three fourth connecting rods are fixedly connected through the corresponding connecting rods.
[0014] In one embodiment, both ends of the first connecting rod are fixedly connected with a first nut, and the first nut has the first threaded hole; the second connecting rod is fixedly connected with a second nut, and the second nut has the second threaded hole; both ends of the third connecting rod are fixedly connected with a third nut, and the third nut has the third threaded hole; the fourth connecting rod is fixedly connected with a fourth nut, and the fourth nut has the fourth threaded hole.
[0015] In one embodiment, the first connecting portion and the second connecting portion are respectively located at two ends of the connecting rod, and a socket is provided in the middle of the connecting rod.
[0016] In one embodiment, the arc lengths of the first connecting rod and the third connecting rod are both 1650 mm, and the arc angles of the first connecting rod and the third connecting rod are both 120°.
[0017] In one embodiment, the lengths of the second connecting rod and the fourth connecting rod are both 625 mm.
[0018] In one embodiment, the length of the connecting rod is 200 mm; the thread diameter of the first connecting part and the second connecting part is 19 mm, and the thread length is 60 mm.
[0019] In one embodiment, the number of the jacks is four and the jacks are spaced apart from each other, and the diameter of the jacks is 6 mm.
[0020] In one embodiment, the connecting rod, the first bracket, and the second bracket are all made of stainless steel.
[0021] Beneficial effects of the utility model:
[0022] A first bracket and a second bracket are provided and connected together by a connecting rod to form a fixed frame that abuts against the inner wall of the cylindrical screen. This increases the pressure of the screen against the centrifuge sleeve, thereby increasing the friction between the screen and the sleeve, ultimately preventing the screen from sliding off the sleeve during operation. The simultaneous provision of the first and second brackets increases the structural strength of the screen, reduces the degree of deformation of the screen during operation, and ensures normal operation of the screen.
[0023] Because the connecting rod has a first connecting portion and a second connecting portion with opposite threads, the corresponding threaded holes connected to the connecting rod also have opposite threads. Rotating the corresponding connecting rod causes the two first connecting rods, the two third connecting rods, or the second and fourth connecting rods connected thereto to move apart or toward each other, facilitating adjustments to the contact pressure between the first and second brackets and the screen. Adjusting the spacing between the first and second brackets to adjust the size of the fixing frame not only facilitates removal and installation of the screen, but also allows the first and second brackets to accommodate cylindrical screens of varying sizes.
[0024] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.
[0026] Figure 1 It is a schematic diagram of the overall structure of the screen fixing device of the present application;
[0027] Figure 2 yes Figure 1 A is an enlarged schematic diagram;
[0028] Figure 3 This is a schematic structural diagram of the second bracket in one embodiment of the present application;
[0029] Reference numerals in the figures: 1, first bracket; 11, first connecting rod; 12, second connecting rod; 13, first nut; 14, second nut;
[0030] 2. Second bracket; 21. Third connecting rod; 22. Fourth connecting rod; 23. Third nut; 24. Fourth nut;
[0031] 3. Connecting rod; 31. First connecting part; 32. Second connecting part; 33. Socket. DETAILED DESCRIPTION
[0032] The specific embodiments of the present application are further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present application but are not intended to limit the scope of the present application. Similarly, the following examples are only some embodiments of the present application and not all embodiments. All other embodiments obtained by those of ordinary skill in the art without making creative work are within the scope of protection of this application.
[0033] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.
[0034] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of such features. Throughout the description of this application, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.
[0035] In this application, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.
[0036] In this application, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" mean 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 application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples without contradiction.
[0037] In response to the above problems, the present application makes improvements and innovations and proposes the following embodiments.
[0038] In some embodiments, see Figures 1 to 3 , provides a centrifuge screen fixing device for abutting against the inner wall surface of a cylindrical screen, comprising: a first bracket 1, a second bracket 2, and a connecting rod 3;
[0039] The first bracket 1 includes a first connecting rod 11 and a second connecting rod 12; the first connecting rod 11 is arc-shaped; both ends of the first connecting rod 11 are provided with a first threaded hole; one end of the second connecting rod 12 is fixedly connected to the middle position of the first connecting rod 11, and the other end is provided with a second threaded hole;
[0040] The second bracket 2 includes a third connecting rod 21 and a fourth connecting rod 22; the third connecting rod 21 is arc-shaped; both ends of the third connecting rod 21 are provided with third threaded holes; one end of the fourth connecting rod 22 is fixedly connected to the middle position of the third connecting rod 21, and the other end is provided with a fourth threaded hole;
[0041] The connecting rod 3 has a first connecting portion 31 and a second connecting portion 32 ; both the first connecting portion 31 and the second connecting portion 32 are provided with threads, and the threads are opposite to each other;
[0042] There are multiple connecting rods 3, first brackets 1, and second brackets 2; multiple first connecting rods 11 are connected end to end in sequence through corresponding connecting rods 3 to form a ring; multiple third connecting rods 21 are connected end to end in sequence through corresponding connecting rods 3 to form a ring; the second connecting rod 12 and the fourth connecting rod 22 are connected together through the corresponding connecting rod 3.
[0043] The corresponding first threaded holes of the two connected first connecting rods 11 are respectively threadedly connected to the first connecting portion 31 and the second connecting portion 32 of a portion of the connecting rod 3 in a one-to-one correspondence; the corresponding third threaded holes of the two connected third connecting rods 21 are respectively threadedly connected to the first connecting portion 31 and the second connecting portion 32 of a portion of the connecting rod 3 in a one-to-one correspondence;
[0044] In the connected second connecting rod 12 and the fourth connecting rod 22 , the corresponding second threaded holes and the corresponding fourth threaded holes are respectively threadedly connected to the first connecting portion 31 and the second connecting portion 32 of a portion of the connecting rod 3 in a one-to-one correspondence.
[0045] A first bracket 1 and a second bracket 2 are provided, and connected together by a connecting rod 3 to form a fixed frame for contact with the inner wall of the cylindrical screen. This increases the contact pressure between the screen and the centrifuge sleeve, thereby increasing the friction between the screen and the sleeve, ultimately preventing the screen from sliding off the sleeve during operation. The simultaneous provision of the first bracket 1 and the second bracket 2 increases the structural strength of the screen, reduces the degree of deformation of the screen during operation, and ensures that the screen operates normally.
[0046] Because the connecting rod 3 has a first connecting portion 31 and a second connecting portion 32 with opposite threads, the corresponding threaded holes connected to the connecting rod 3 also have opposite threads. When the corresponding connecting rod 3 is rotated, the two first connecting rods 11, the two third connecting rods 21, or the second and fourth connecting rods 22 connected thereto will move away from or toward each other, which helps workers adjust the contact pressure between the first bracket 1 and the second bracket 2 and the screen. Since the spacing between the first bracket 1 and the second bracket 2 can be adjusted to adjust the size of the fixing frame, it is not only convenient to remove and install the screen, but also allows the first bracket 1 and the second bracket 2 to adapt to cylindrical screens of different sizes.
[0047] In some embodiments, the first bracket 1 and the second bracket 2 have the same structure. The same structure can facilitate processing and production.
[0048] In some embodiments, the number of first brackets 1 and second brackets 2 is three, and the number of connecting rods 3 is nine. The three first connecting rods 11 are sequentially enclosed to form a circle, and the corresponding connecting rod 3 connects two adjacent first connecting rods 11 together. The three third connecting rods 21 are sequentially enclosed to form a circle, and the corresponding connecting rod 3 connects two adjacent third connecting rods 21 together. The three second connecting rods 12 and the three fourth connecting rods 22 are fixedly connected by the corresponding connecting rods 3. Using three first connecting rods 11 to enclose the circle can form a perfect circle and also facilitates installation and removal. When there are fewer than three first connecting rods 11, the number of connecting rods 3 required is also reduced, so the adjustable size range is narrow. When there are more than three first connecting rods 11, the number of connecting rods 3 required increases, which increases the difficulty of installing the first connecting rods 11.
[0049] In some embodiments, both ends of the first connecting rod 11 are fixedly connected to a first nut 13 having a first threaded hole; the second connecting rod 12 is fixedly connected to a second nut 14 having a second threaded hole; both ends of the third connecting rod 21 are fixedly connected to a third nut 23 having a third threaded hole; and the fourth connecting rod 22 is fixedly connected to a fourth nut 24 having a fourth threaded hole. The arrangement of the nuts and connecting rod 3 provides a simple and rational structure. Nut materials are widely available and readily available, and the nuts can be used after welding, making production and processing convenient.
[0050] In some embodiments, the first connecting portion 31 and the second connecting portion 32 are respectively located at the two ends of the connecting rod 3, and a socket 33 is provided in the middle of the connecting rod 3. The socket 33 is provided mainly for allowing a rod to pass through the socket 33 to facilitate the rotation of the connecting rod 3, thereby causing the two corresponding nuts connected to the first connecting portion 31 and the second connecting portion 32 to move toward or away from each other, thereby causing the corresponding two first connecting rods 11, the two third connecting rods 21, the second connecting rod 12, and the fourth connecting rod 22 to move toward or away from each other, ultimately adjusting the abutment pressure of the first bracket 1 and the second bracket 2 on the screen, thereby facilitating the removal and installation of the screen.
[0051] In some embodiments, the arc lengths of the first connecting rod 11 and the third connecting rod 21 are both 1650 mm, and the arc angles are both 120°, which can just form a circle.
[0052] In some embodiments, the length of the second connecting rod 12 and the fourth connecting rod 22 are both 625 mm, which can better adapt to the sleeve depth of the centrifuge turret.
[0053] In some embodiments, the connecting rod 3 is 200 mm long; the threads of the first connecting portion 31 and the second connecting portion 32 have a diameter of 19 mm and a thread length of 60 mm. A thread length of 60 mm maximizes the nut's travel distance, increases the adjustable range of the distance between the first bracket 1 and the second bracket 2, and accommodates a wider range of sleeve sizes.
[0054] In some embodiments, the number of insertion holes 33 is four, spaced apart from each other, and the diameter of the insertion holes 33 is 6 mm. The four insertion holes 33 facilitate the insertion of multiple rods for rotating the connecting rod 3. The diameter of the insertion holes 33 ensures that the inserted rods are as thick as possible, allowing for the insertion of stronger rods to avoid breakage during rotation. The insertion holes 33 should also be small, as this will reduce the strength of the connecting rod 3.
[0055] In some embodiments, the connecting rod 3, the first bracket 1, and the second bracket 2 are all made of stainless steel. Stainless steel is easy to produce and process, and the raw material is widely available and inexpensive, thereby reducing production costs.
[0056] Finally, it should be noted that although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present invention. Ordinary technicians in this field can make changes, modifications, replacements and variations to the above embodiments within the scope of the present invention, which should all be included in the scope of protection of this application.
Claims
1. A centrifuge screen fixing device, used to abut against the inner wall surface of a cylindrical screen, characterized in that: include: A first bracket, the first bracket comprising a first connecting rod and a second connecting rod; the first connecting rod is in an arc shape; both ends of the first connecting rod are provided with a first threaded hole; one end of the second connecting rod is fixedly connected to the middle position of the first connecting rod, and the other end is provided with a second threaded hole; A second bracket, the second bracket comprising a third connecting rod and a fourth connecting rod; the third connecting rod is in an arc shape; both ends of the third connecting rod are provided with a third threaded hole; one end of the fourth connecting rod is fixedly connected to the middle position of the third connecting rod, and the other end is provided with a fourth threaded hole; A connecting rod, the connecting rod having a first connecting portion and a second connecting portion; the first connecting portion and the second connecting portion are both provided with threads, and the threads are opposite to each other; The number of the connecting rods, the first brackets, and the second brackets are all multiple; multiple first connecting rods are connected end to end in sequence through the corresponding connecting rods to form a ring; multiple third connecting rods are connected end to end in sequence through the corresponding connecting rods to form a ring; the second connecting rod and the fourth connecting rod are connected together through the corresponding connecting rod.
2. The screen fixing device for a centrifuge according to claim 1, characterized in that: The first bracket and the second bracket have the same structure.
3. The screen fixing device for a centrifuge according to claim 2, characterized in that: The number of the first brackets and the number of the second brackets are three each, and the number of the connecting rods is nine; the three first connecting rods are sequentially enclosed to form a circle, and the corresponding connecting rod connects two adjacent first connecting rods together; the three third connecting rods are sequentially enclosed to form a circle, and the corresponding connecting rod connects two adjacent third connecting rods together; the three second connecting rods and the three fourth connecting rods are fixedly connected through the corresponding connecting rods.
4. The screen fixing device for a centrifuge according to claim 2, characterized in that: Both ends of the first connecting rod are fixedly connected with a first nut, and the first nut has the first threaded hole; the second connecting rod is fixedly connected with a second nut, and the second nut has the second threaded hole; both ends of the third connecting rod are fixedly connected with a third nut, and the third nut has the third threaded hole; the fourth connecting rod is fixedly connected with a fourth nut, and the fourth nut has the fourth threaded hole.
5. The screen fixing device for a centrifuge according to claim 3, characterized in that: The first connecting portion and the second connecting portion are respectively located at two ends of the connecting rod, and a plug hole is provided in the middle of the connecting rod.
6. The screen fixing device for a centrifuge according to claim 3, characterized in that: The arc lengths of the first connecting rod and the third connecting rod are both 1650 mm, and the arc angles are both 120°.
7. The screen fixing device for a centrifuge according to claim 3, characterized in that: The lengths of the second connecting rod and the fourth connecting rod are both 625 mm.
8. The screen fixing device for a centrifuge according to claim 5, characterized in that: The length of the connecting rod is 200 mm; the thread diameters of the first connecting part and the second connecting part are 19 mm, and the thread lengths are 60 mm.
9. The screen fixing device for a centrifuge according to claim 8, characterized in that: The number of the jacks is four and they are spaced apart from each other, and the diameter of the jacks is 6 mm.
10. The screen fixing device for a centrifuge according to any one of claims 1 to 9, characterized in that: The connecting rod, the first bracket and the second bracket are all made of stainless steel.