Double-screw conveyor and bearing seat fixing structure thereof

Abstract

The invention discloses a double-screw conveyor and a bearing seat fixing structure thereof. The bearing seat fixing structure comprises a cross beam; the fixing assembly comprises a first fixing plate arranged below the cross beam, a second fixing plate arranged above the cross beam and a fastener for connecting the first fixing plate and the second fixing plate; the bearing seat is arranged below the first fixing plate; the protection plate is arranged below the bearing seat; the connecting assembly is used for connecting the protection plate with the first fixing plate; wherein the cross beam is clamped by the first fixing plate and the second fixing plate, and the bearing seat is clamped by the second fixing plate and the protection plate. The protection plate and the first fixing plate clamp the bearing seat, the protection plate supports the bearing seat from the lower portion of the bearing seat, and the two sides of the bearing seat can be prevented from being broken.

Description

Technical Field

[0001] This article relates to a double screw conveyor and a bearing seat fixing structure thereof. Background Art

[0002] The rotary kiln is a key equipment for gypsum board production that uses steam as a heat source. The desulfurized gypsum calcination process is completed through the rotary kiln. The double screw conveyor is a device that conveys desulfurized gypsum into the rotary kiln. Its tail needs to go deep into the rotary kiln to complete the transportation of desulfurized gypsum. The inside of the rotary kiln is a high temperature and high humidity environment with a lot of dust. Therefore, the tail bearing of the equipment cannot use ordinary rolling bearings, but requires special wear-resistant sliding bearings, and its stability is very important. However, in the actual production process, the sliding bearing is prone to failure, resulting in long-term downtime and great losses.

[0003] In the prior art, the bearing seat and the fixed plate are connected by bolts. When the double screw conveyor is working, it will vibrate, which will cause the bolts connecting the bearing seat and the fixed plate to loosen, causing the bearing seat to fall off. The bearing seat is made of special wear-resistant materials, and the structural strength is slightly poor. In addition, the bearing seat is set below the fixed plate, and the downward pull load it carries is large, so the two sides of the bearing seat are easy to break. Summary of the invention

[0004] In order to solve the problem that the bearing seat is easy to break in the prior art, the embodiment of the present application provides a bearing seat fixing structure of a double screw conveyor, which includes:

[0005] beam;

[0006] A fixing assembly, comprising a first fixing plate disposed below the cross beam, a second fixing plate disposed above the cross beam, and a fastener connecting the first fixing plate and the second fixing plate;

[0007] A bearing seat, arranged below the first fixing plate;

[0008] A protection plate, arranged below the bearing seat;

[0009] A connecting assembly, connecting the protection plate to the first fixing plate;

[0010] Wherein, the first fixing plate and the second fixing plate clamp the crossbeam, and the second fixing plate and the protection plate clamp the bearing seat.

[0011] In an illustrative embodiment, the end surface of the bearing seat close to one end of the protection plate is an arc surface;

[0012] A first positioning protrusion and a second positioning protrusion are arranged on the plate surface of the protection plate facing the bearing seat, and the first positioning protrusion and the second positioning protrusion are respectively abutted against opposite sides of one end of the bearing seat close to the protection plate.

[0013] In an illustrative embodiment, the first positioning protrusion is provided with a first supporting surface that abuts against the bearing seat, and the second positioning protrusion is provided with a second supporting surface that abuts against the bearing seat, and the distance between the first supporting surface and the second supporting surface gradually increases in the direction from the protective plate to the first fixing plate.

[0014] In an illustrative embodiment, a screw hole is provided on the first fixing plate, and the protection plate is provided with a first through hole coaxial with the screw hole;

[0015] The connecting assembly comprises a screw rod, a first nut and a first spring washer;

[0016] One end of the screw is inserted into the screw hole and screwed together with the screw hole, and the other end of the screw is passed through the first through hole of the protection plate;

[0017] The first spring washer is sleeved on the screw rod and located on a side of the protection plate facing away from the first fixing plate, and the first nut is sleeved on the screw rod and located on a side of the first spring washer facing away from the protection plate.

[0018] In an exemplary embodiment, the screw rod is welded to the first fixing plate.

[0019] In an illustrative embodiment, the welding point between the screw rod and the first fixing plate is located at an end of the screw hole facing away from the protection plate.

[0020] In an illustrative embodiment, a plurality of the connecting assemblies are provided, and the plurality of connecting assemblies are respectively provided on opposite sides of the bearing seat.

[0021] In an illustrative embodiment, the bearing seat is further provided with a plurality of fixing parts, and the plurality of fixing parts are respectively provided on two opposite sides of the bearing seat;

[0022] The fixing part is provided with a second through hole, and the second through holes of the plurality of fixing parts are respectively coaxially arranged with the plurality of screw holes, and the plurality of screw rods respectively pass through the second through holes of the plurality of fixing parts;

[0023] The connecting assembly also includes a second nut and a second spring washer, wherein the plurality of second spring washers are respectively sleeved on the plurality of screw rods, and the plurality of second spring washers are respectively located on a side of the plurality of fixing parts close to the protective plate, the plurality of second nuts are respectively sleeved on the plurality of screw rods, and the plurality of second nuts are respectively located on a side of the plurality of second spring washers facing away from the first fixing plate, and the fixing parts and the second nuts clamp the second spring washers.

[0024] The present application proposes a double screw conveyor, which includes the bearing seat fixing structure as described above.

[0025] Since the protection plate and the first fixing plate clamp the bearing seat, the protection plate supports the bearing seat from below the bearing seat, thereby preventing the two sides of the bearing seat from breaking.

[0026] Other features and advantages of the present application will be described in the following description, and partly become apparent from the description, or be understood by implementing the present application. Other advantages of the present application can be realized and obtained by the schemes described in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The accompanying drawings are used to provide an understanding of the technical solution of the present application and constitute a part of the specification. Together with the embodiments of the present application, they are used to explain the technical solution of the present application and do not constitute a limitation on the technical solution of the present application.

[0028] Figure 1 It is a front view schematic diagram of a bearing seat fixing structure of a double screw conveyor in an embodiment of the present application;

[0029] Figure 2 A cross-sectional schematic diagram of a bearing seat fixing structure of a double screw conveyor in an embodiment of the present application;

[0030] Figure 3 It is a partial schematic diagram of the bearing seat fixing structure in the embodiment of the present application.

[0031] Reference numerals:

[0032] 100. Bearing seat fixing structure; 1. Crossbeam; 2. Fixing assembly; 21. First fixing plate; 211. Screw hole; 22. Second fixing plate; 23. Fastener; 3. Bearing seat; 31. Fixing portion; 311. Second through hole; 4. Protective plate; 41. First positioning protrusion; 411. First supporting surface; 421. Second supporting surface; 42. Second positioning protrusion; 5. Connecting assembly; 51. Screw; 52. First spring washer; 53. First nut; 54. Second spring washer; 55. Second nut; 6. Spiral blade; 7. Welding point. DETAILED DESCRIPTION

[0033] The present application describes multiple embodiments, but the description is exemplary rather than restrictive, and it is obvious to those skilled in the art that there may be more embodiments and implementations within the scope of the embodiments described in the present application. Although many possible feature combinations are shown in the drawings and discussed in the specific embodiments, many other combinations of the disclosed features are also possible. Unless specifically limited, any feature or element of any embodiment may be used in combination with any other feature or element in any other embodiment, or may replace any other feature or element in any other embodiment.

[0034] The present application includes and contemplates combinations of features and elements known to those of ordinary skill in the art. The embodiments, features and elements disclosed in the present application may also be combined with any conventional features or elements to form a unique invention scheme. Any features or elements of any embodiment may also be combined with features or elements from other invention schemes to form another unique invention scheme. Therefore, it should be understood that any feature shown and / or discussed in the present application may be implemented individually or in any appropriate combination. Therefore, except for the limitations made according to the attached claims and their equivalents, the embodiments are not subject to other restrictions. In addition, various modifications and changes may be made within the scope of protection of the attached claims.

[0035] In addition, when describing representative embodiments, the specification may have presented the method and / or process as a specific sequence of steps. However, to the extent that the method or process does not rely on the specific order of the steps described herein, the method or process should not be limited to the steps of the specific order described. As will be understood by those of ordinary skill in the art, other sequences of steps are also possible. Therefore, the specific sequence of the steps set forth in the specification should not be interpreted as a limitation to the claims. In addition, the claims for the method and / or process should not be limited to the steps of performing them in the order written, and those skilled in the art can easily understand that these sequences can be changed and still remain within the spirit and scope of the embodiments of the present application.

[0036] like Figure 1 , 2 As shown, Figure 1 , 2 The embodiment of the present application shows a bearing seat fixing structure 100 of a double screw conveyor, wherein the bearing seat fixing structure 100 comprises a cross beam 1, a fixing assembly 2, a protection plate 4, a connecting assembly 5, a bearing seat 3 and a spiral blade 6.

[0037] The cross beam 1 is the main load-bearing structure of the double screw conveyor. The cross beam 1 can be configured as a straight bar and arranged horizontally. The cross beam 1 can be configured as a straight round tube.

[0038] The fixing assembly 2 is arranged on the cross beam 1. The fixing assembly 2 includes a first fixing plate 21, a second fixing plate 22 and a fastener 23. The first fixing plate 21 and the second fixing plate 22 are both metal plates. The first fixing plate 21 and the second fixing plate 22 can both be configured as flat plates. The first fixing plate 21 and the second fixing plate 22 are both arranged horizontally. The first fixing plate 21 is arranged below the cross beam 1, and the second fixing plate 22 is arranged above the cross beam 1, and the fastener 23 connects the first fixing plate 21 and the second fixing plate 22. The fastener 23 can be a bolt. The cross beam 1 is sandwiched between the first fixing plate 21 and the second fixing plate 22, and is clamped by the first fixing plate 21 and the second fixing plate 22, whereby the first fixing plate 21 and the second fixing plate 22 are both fixed on the cross beam 1.

[0039] The bearing seat 3 is arranged below the first fixing plate 21. The bearing seat 3 abuts against the downward surface of the first fixing plate 21. The surface of the bearing seat 3 abutting against the first fixing plate 21 is a plane parallel to the first fixing plate 21. The bearing seat 3 is provided with an axial hole 31. The axial hole 31 passes through the bearing seat 3, and the circumferential direction of the axial hole 31 is parallel to the horizontal direction. The axial direction of the axial hole 31 is perpendicular to the extension direction of the crossbeam 1. The bearing seat 3 can be made by a casting process.

[0040] The spiral blade 6 includes a blade body and a rotating shaft 61. The blade body is constructed in a spiral shape. The rotating shaft 61 is arranged at one end of the blade body. The rotating shaft 61 is inserted into the shaft hole 31 of the bearing seat 3. The bearing seat 3 supports one end of the spiral blade 6. There is a clearance fit between the rotating shaft 61 and the shaft hole 31 of the bearing seat 3, and the rotating shaft 61 can rotate freely in the shaft hole 31 of the bearing seat 3. When the spiral blade 6 rotates, the blade body can push the material to move.

[0041] The protection plate 4 can be a flat plate. The protection plate 4 is parallel to the first fixing plate 21. The protection plate 4 is arranged below the bearing seat 3 and abuts against the bearing seat 3. The connecting component 5 connects the protection plate 4 and the first fixing plate 21. The bearing seat 3 is sandwiched between the protection plate 4 and the first fixing plate 21, and the protection plate 4 and the first fixing plate 21 clamp the bearing seat 3.

[0042] In this way, since the protection plate 4 and the first fixing plate 21 clamp the bearing seat 3, the protection plate 4 supports the bearing seat 3 from below the bearing seat 3, which can prevent the two sides of the bearing seat 3 from breaking.

[0043] In an illustrative embodiment, the end surface of the bearing seat 3 close to the protection plate 4 is an arc surface.

[0044] A first positioning protrusion 41 and a second positioning protrusion 42 are provided on the plate surface of the protection plate 4 facing the bearing seat 3. The first positioning protrusion 41 and the second positioning protrusion 42 are located on opposite sides of one end of the bearing seat 3 close to the protection plate 4, and the first positioning protrusion 41 and the second positioning protrusion 42 are respectively against opposite sides of one end of the bearing seat 3 close to the protection plate 4.

[0045] In this way, the first positioning protrusion 41 and the second positioning protrusion 42 respectively abut against the opposite sides of one end of the bearing seat 3 close to the protective plate 4, which can make the bearing seat 3 installed more firmly. At the same time, the first positioning protrusion 41 and the second positioning protrusion 42 abut against the bearing seat 3 and can also increase the force-bearing area of ​​the lower surface of the bearing seat 3, so that the force on the bearing seat 3 is more reasonable.

[0046] In an illustrative embodiment, the first positioning protrusion 41 is provided with a first supporting surface 411, which is inclined and abuts against the bearing seat 3. The second positioning protrusion 42 is provided with a second supporting surface 421, which is inclined and abuts against the bearing seat 3. In the direction from the protection plate 4 to the first fixing plate 21, the distance between the first supporting surface 411 and the second supporting surface 421 gradually increases.

[0047] In this way, the first supporting surface 411 and the second supporting surface 421 are opened upward, and the bearing seat 3 can more easily enter between the first supporting surface 411 and the second supporting surface 421 during assembly. At the same time, the bearing seat 3 is respectively against the first supporting surface 411, the second supporting surface 421 and the upward surface of the protective plate 4, so that the bearing seat 3 can be fixed more firmly.

[0048] In an exemplary embodiment, a screw hole 211 is provided on the first fixing plate 21. The screw hole 211 may penetrate the first fixing plate 21. A first through hole is provided on the protection plate 4. The first through hole vertically penetrates the protection plate 4. The first through hole is coaxially arranged with the screw hole 211.

[0049] The connecting assembly 5 includes a screw rod 51, a first nut 53 and a first spring washer 52. One end of the screw rod 51 is inserted into the screw hole 211 of the first fixing plate 21 and screwed together with the screw hole 211 of the first fixing plate 21. The other end of the screw rod 51 is inserted into the first through hole of the protection plate 4. The first spring washer 52 is sleeved on the screw rod 51 and is located on the side of the protection plate 4 facing away from the first fixing plate 21. The first nut 53 is sleeved on the screw rod 51 and is located on the side of the first spring washer 52 facing away from the protection plate 4. The first nut 53 and the protection plate 4 clamp the first spring washer 52.

[0050] The connecting components 5 may be provided in plurality, for example, two or four. The plurality of connecting components 5 are respectively provided on opposite sides of the bearing seat 3. The number of screw holes 211 on the first fixing plate 21 is the same as the number of connecting components 5. The number of first through holes on the protection plate 4 is the same as the number of connecting components 5. One end of the screw rods 51 of the plurality of connecting components 5 is respectively inserted into the plurality of screw holes 211 of the first fixing plate 21, and the other end of the screw rods 51 of the plurality of connecting components 5 is respectively inserted into the plurality of first through holes of the protection plate 4.

[0051] In this way, the plurality of connecting components 5 firmly fix the first fixing plate 21 to the protection plate 4. The first spring washer 52 can prevent the first nut 53 from loosening.

[0052] In an exemplary embodiment, the screw rod 51 is welded to the first fixing plate 21 .

[0053] The first fixing plate 21 and the screw rod 51 are connected by welding, which can prevent the threaded connection between the screw rod 51 and the first fixing plate 21 from loosening due to vibration generated when the double screw conveyor is working, and prevent the bearing seat 3 from falling off.

[0054] In an exemplary embodiment, the welding point 7 between the screw rod 51 and the first fixing plate 21 is located at the end of the screw hole 211 facing away from the protection plate 4. Solder can be filled in the end of the screw hole 211 facing away from the protection plate 4 to fix the end of the screw rod 51 inserted into the screw hole 211 and the first fixing plate 21 together.

[0055] In this way, the solder joint 7 is located in the end of the screw hole 211 facing away from the protection plate 4, which can firmly connect the screw rod 51 and the first fixing plate 21 together, and at the same time, it can prevent the solder from protruding out of the first fixing plate 21 and interfering with other parts.

[0056] In an illustrative embodiment, the bearing seat 3 is further provided with a plurality of fixing portions 31, and the plurality of fixing portions 31 are respectively provided on opposite sides of the bearing seat 3. The fixing portions 31 are provided with second through holes 311. The second through holes 311 of the plurality of fixing portions 31 are respectively coaxially arranged with the plurality of screw holes 211. The extension direction of the second through holes 311 is the same as the extension direction of the screw rod 51, and the plurality of screw rods 51 respectively pass through the second through holes 311 of the plurality of fixing portions 31.

[0057] The connecting assembly 5 further includes a second nut 55 and a second spring washer 54. The second spring washers 54 of the multiple connecting assemblies 5 are respectively sleeved on the screw rods 51 of the multiple connecting assemblies 5, and the second spring washers 54 of the multiple connecting assemblies 5 are respectively located on the side of the multiple fixing parts 31 close to the protection plate 4. The second nuts 55 of the multiple connecting assemblies 5 are respectively sleeved on the screw rods 51 of the multiple connecting assemblies 5, and the second nuts 55 of the multiple connecting assemblies 5 are respectively located on the side of the second spring washers 54 of the multiple connecting assemblies 5 facing away from the first fixing plate 21. The fixing part 31 and the second nut 55 clamp the second spring washer 54.

[0058] In this way, the second nut 55 can also lock the fixing portion 31 and the first fixing plate 21 , so that the bearing seat 3 is more firmly fixed on the first fixing plate 21 .

[0059] In an illustrative embodiment, a plurality of fasteners 23 may be provided, and the plurality of fasteners 23 are respectively provided on opposite sides of the crossbeam 1. The first fixing plate 21 and the second fixing plate 22 are connected by the plurality of fasteners 23, and the connection between the first fixing plate 21 and the second fixing plate 22 is more stable.

[0060] The embodiment of the present application also provides a double screw conveyor, which includes the above-mentioned bearing seat fixing structure 100. One end of the double screw conveyor is located in the rotary kiln, and the bearing seat fixing structure 100 of the double screw conveyor is located in the rotary kiln.

[0061] 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 referred device or element 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.

[0062] In addition, the terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first", "second", etc. may explicitly or implicitly include at least one of the features.

[0063] In the description of the present application, “plurality” means at least two, for example, two, three, etc., unless otherwise clearly and specifically defined.

[0064] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0065] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0066] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" etc. 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 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 may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0067] Although the embodiments of the present application 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 application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A bearing seat fixing structure of a double screw conveyor, characterized in that: include: beam; A fixing assembly, comprising a first fixing plate disposed below the cross beam, a second fixing plate disposed above the cross beam, and a fastener connecting the first fixing plate and the second fixing plate; A bearing seat, arranged below the first fixing plate; A protection plate, arranged below the bearing seat; A connecting assembly, connecting the protection plate to the first fixing plate; Wherein, the first fixing plate and the second fixing plate clamp the crossbeam, and the second fixing plate and the protection plate clamp the bearing seat.

2. The bearing seat fixing structure according to claim 1, characterized in that: The end surface of the bearing seat close to the protection plate is an arc surface; A first positioning protrusion and a second positioning protrusion are arranged on the plate surface of the protection plate facing the bearing seat, and the first positioning protrusion and the second positioning protrusion are respectively abutted against opposite sides of one end of the bearing seat close to the protection plate.

3. The bearing seat fixing structure according to claim 2, characterized in that: The first positioning protrusion is provided with a first supporting surface that abuts against the bearing seat, and the second positioning protrusion is provided with a second supporting surface that abuts against the bearing seat. In the direction from the protective plate to the first fixing plate, the distance between the first supporting surface and the second supporting surface gradually increases.

4. The bearing seat fixing structure according to any one of claims 1 to 3, characterized in that: The first fixing plate is provided with a screw hole, and the protection plate is provided with a first through hole coaxial with the screw hole; The connecting assembly comprises a screw rod, a first nut and a first spring washer; One end of the screw is inserted into the screw hole and screwed together with the screw hole, and the other end of the screw is passed through the first through hole of the protection plate; The first spring washer is sleeved on the screw rod and located on a side of the protection plate facing away from the first fixing plate, and the first nut is sleeved on the screw rod and located on a side of the first spring washer facing away from the protection plate.

5. The bearing seat fixing structure according to claim 4, characterized in that: The screw rod is welded to the first fixing plate.

6. The bearing seat fixing structure according to claim 5, characterized in that: The welding point between the screw rod and the first fixing plate is located at an end of the screw hole facing away from the protection plate.

7. The bearing seat fixing structure according to claim 4, characterized in that: A plurality of the connecting components are provided, and the plurality of the connecting components are respectively arranged on opposite sides of the bearing seat.

8. The bearing seat fixing structure according to claim 7, characterized in that: The bearing seat is also provided with a plurality of fixing parts, and the plurality of fixing parts are respectively provided on two opposite sides of the bearing seat; The fixing part is provided with a second through hole, and the second through holes of the plurality of fixing parts are respectively coaxially arranged with the plurality of screw holes, and the plurality of screw rods respectively pass through the second through holes of the plurality of fixing parts; The connecting assembly also includes a second nut and a second spring washer, wherein the plurality of second spring washers are respectively sleeved on the plurality of screw rods, and the plurality of second spring washers are respectively located on a side of the plurality of fixing parts close to the protective plate, the plurality of second nuts are respectively sleeved on the plurality of screw rods, and the plurality of second nuts are respectively located on a side of the plurality of second spring washers facing away from the first fixing plate, and the fixing parts and the second nuts clamp the second spring washers.

9. A double screw conveyor, characterized in that: It comprises the bearing seat fixing structure as claimed in any one of claims 1 to 8.

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