Double-disc mill equipment

Abstract

The utility model relates to double-disc refiner equipment, which comprises a pulping part, a grinding part and a grinding part, the power part is provided with a power output end; the bearing part is arranged between the pulping part and the power part, the bearing part comprises a bearing frame and a shaft assembly, the shaft assembly comprises a main shaft, a bearing and a bearing seat, the shaft assembly is integrally and detachably installed on the bearing frame, the power input end of the shaft assembly is connected with the power output end, and the bearing is connected with the bearing seat. And the power output end of the shaft assembly extends into the pulping part and is connected with the movable grinding sheet. The shaft assembly and the bearing frame of the bearing part are modularized, the independently assembled shaft assembly can be integrally replaced and independently maintained, the design is more flexible, and in the use and maintenance process, a large amount of downtime and manpower input can be saved for customers.

Description

Technical Field

[0001] The present application relates to the technical field of pulping equipment, and in particular to a double-disc grinding equipment. Background Art

[0002] Double disc refiner is a new generation of pulp beating equipment, which is suitable for continuous beating of chemical pulp, mechanical pulp, waste paper pulp and other pulps. It is currently the most ideal pulping equipment.

[0003] At present, the double-disc mills on the market mainly adopt an integral shell design, in which the grinding chamber body shell and the bearing seat are made into an integral component. This design requires the entire shell to be disassembled for replacement or repair when the bearing mounting hole is worn, which is almost equivalent to dismantling the entire machine. In addition, replacing the bearing or the main shaft requires completely disassembling the shaft assembly, which is a large workload and long downtime. Utility Model Content

[0004] Based on this, a double-disc grinding equipment is provided, which modularizes the shaft assembly and the bearing frame. The independently assembled shaft assembly can be replaced as a whole and repaired separately. The design is more flexible and can save customers a lot of downtime and manpower investment during use and maintenance.

[0005] On the one hand, a double-disc grinding device is provided, which includes: a refining part, which includes a movable grinding plate; a power part, which has a power output end; and a bearing part, which is arranged between the refining part and the power part, and the bearing part includes a bearing frame and a shaft assembly, wherein the shaft assembly includes a main shaft, a bearing and a bearing seat, and the shaft assembly is detachably mounted on the bearing frame as a whole, the power input end of the shaft assembly is connected to the power output end, and the power output end of the shaft assembly extends into the refining part and is connected to the movable grinding plate.

[0006] Optionally, the bearing frame can be detachably mounted on the refining part.

[0007] Optionally, the bearing frame is connected to the refining part by using bolts.

[0008] Optionally, the bearing frame is provided with a mounting groove, and the shaft assembly is integrally and detachably mounted in the mounting groove.

[0009] Optionally, the assembly groove is configured as an arc-shaped groove with an open top, and the two opposite ends of the arc-shaped groove are opened.

[0010] Optionally, the shaft assembly further includes a bearing housing, the bearing housing is assembled in the assembly groove, and the bearing seat is installed in the bearing housing, and the main shaft is rotationally connected to the bearing seat via the bearing.

[0011] Optionally, the bearing seat is detachably mounted in the bearing housing.

[0012] Optionally, the bearing includes a front bearing and a rear bearing, the bearing seat includes a front bearing seat and a rear bearing seat, the front bearing is correspondingly installed on the front bearing seat, and the rear bearing is correspondingly installed on the rear bearing seat; the main shaft is rotationally connected through the front bearing and the front bearing seat, and the rear bearing and the rear bearing seat respectively.

[0013] Optionally, one end of the main shaft is connected to the output end of the power unit, and the other end of the main shaft extends into the refining unit and is connected to the movable refining plate.

[0014] Optionally, the power unit includes a motor, the output shaft of the motor is the power output end, one end of the main shaft is connected to the power output end of the motor, and the other end of the main shaft extends into the refining unit to be connected to the movable refining plate.

[0015] Optionally, the refining section comprises a refining chamber, in which movable refining plates and fixed refining plates are arranged, and a refining area is formed between the movable refining plates and the fixed refining plates.

[0016] Beneficial effects:

[0017] The above-mentioned double-disc grinding equipment modularizes the shaft assembly and the bearing frame, and independently assembles the shaft assembly as a whole on the bearing frame in a modular manner. In this way, when replacing the bearings or main shaft and other components of the shaft assembly, the shaft assembly can be removed as a whole without touching the refining part and the bearing frame, and the refining part and the bearing frame will not be worn. At the same time, if spare parts for the shaft assembly are available, they can be replaced directly, and the replaced bad shaft assembly can be repaired slowly, which greatly reduces the downtime for repair and replacement, and the service life of the separate shaft assembly design is longer, and the overall maintenance cost is also lower. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of the structure of a double-disc grinding device in one embodiment;

[0019] Figure 2 A schematic cross-sectional view of a double-disc grinding device in one embodiment;

[0020] Figure 3 A schematic diagram of the structure of a bearing frame in one embodiment;

[0021] Figure 4 is a schematic structural diagram of a shaft assembly in one embodiment;

[0022] Figure 5 Schematic cross-sectional view of a shaft assembly in one embodiment.

[0023] 1. Refining section; 11. Refining chamber; 12. Moving grinding plate; 13. Fixed grinding plate; 14. Refining area; 2. Bearing section; 21. Bearing frame; 211. Assembly groove; 212. Threaded hole; 22. Shaft assembly; 221. Bearing housing; 2211. Mounting plate; 22111. Mounting hole; 222. Bearing seat; 2221. Front bearing seat; 2222. Rear bearing seat; 223. Bearing; 2231. Front bearing; 2232. Rear bearing; 224. Spindle; 3. Bolt. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0025] It should be noted that the illustrations provided in this embodiment only illustrate the basic concept of the present application in a schematic manner, and therefore the drawings only show components related to the present application rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed arbitrarily, and the component layout may also be more complicated.

[0026] The structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with this technology. They are not used to limit the conditions under which this application can be implemented, and therefore have no substantive technical significance. Any structural modification, change in proportion or adjustment of size, without affecting the effects and purposes that can be achieved by this application, should still fall within the scope of the technical contents disclosed in this application.

[0027] The directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "middle", "longitudinal", "lateral", "horizontal", "inner", "outer", "radial", "circumferential" and the like in this specification are based on the directions or positional relationships shown in the drawings and are only for the convenience of simplifying the description. They do not indicate or imply that the devices or elements referred to must have a specific direction, be constructed and operate in a specific direction, and therefore cannot be understood as limiting the present application. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0028] The embodiment of the present application provides a double-disc grinding device. By designing the grinding part, the bearing frame and the shaft assembly as separate components, when replacing components such as bearings or main shafts, the shaft assembly can be removed as a whole without touching the grinding part and the bearing frame, and the grinding part and the bearing frame will not be worn. If spare parts for the shaft assembly are available, they can be replaced directly, and the replaced bad shaft assembly can be repaired slowly, which greatly reduces the downtime for repair and replacement. In addition, the separate shaft assembly design has a longer service life and lower overall maintenance costs.

[0029] The following is a detailed description of a double-disc grinding device provided in this embodiment. Figure 1 , Figure 2 As shown, it includes: a refining part 1, a bearing part 2 and a power part; the refining part 1 includes a movable refining plate 12, the power part has a power output end, the bearing part 2 is arranged between the refining part 1 and the power part, and the bearing part 2 includes a bearing frame 21 and a shaft assembly 22, wherein the shaft assembly 22 includes a main shaft 224, a bearing 223 and a bearing seat 222, and the shaft assembly 22 is detachably mounted on the bearing frame 21 as a whole, the power input end of the shaft assembly 22 is connected to the power output end of the power part, and the power output end of the shaft assembly 22 extends into the refining part 1 and is connected to the movable refining plate 12.

[0030] In this embodiment, a refining chamber 11 is formed in the refining part 1, and a movable grinding plate 12 and a fixed grinding plate 13 are arranged in the refining chamber 11. A refining area 14 is formed by the movable grinding plate 12 and the fixed grinding plate 13. The material is refined by the refining area 14. The power input end of the shaft assembly 22 is connected to the power output end of the power part, and the power output end of the shaft assembly 22 extends into the refining part 1 and is connected to the movable grinding plate 12. This part is a conventional structure of a double-disc grinding equipment and will not be repeated here.

[0031] In the present embodiment, the shaft assembly 22 and the bearing frame 21 are modularized as a whole, and the shaft assembly 22 can be installed on the bearing frame 21 as a whole. The independently assembled shaft assembly 22 can be replaced as a whole and repaired separately, which is more flexible in design. In the use and maintenance process of the double-disc grinding equipment, it can save customers a lot of downtime and manpower investment. Compared with the integral shell design adopted in the prior art, when the bearing mounting hole is worn, the entire shell needs to be disassembled for replacement or repair. The design structure of the present embodiment can avoid the situation where the entire double-disc grinding equipment needs to be disassembled, repaired or replaced when the bearing mounting hole is worn.

[0032] Please continue to refer to Figure 1 , Figure 2As shown, in this embodiment, it should be noted that the bearing frame 21 can be detachably mounted on the refining part 1, thereby the refining part 1, the bearing frame 21 and the shaft assembly 22 are designed as three separate components. When replacing the bearing or the main shaft and other components, the shaft assembly 22 can be removed as a whole without moving the refining part 1 and the bearing frame 21, and the refining part 1 and the bearing frame 21 will not be worn. In addition, by adopting a detachable manner, it is convenient to install and remove the bearing frame 21 on the refining part 1, so that the bearing frame 21 and the refining part 1 are divided into two independent components, which is more flexible and convenient during use.

[0033] In an achievable manner, the bearing frame 21 is connected to the refining part 1 by using bolts 3. The bolt 3 connection method has a simple structure and high stability. Of course, other components with connection structures such as pins may also be used in other embodiments, and no specific limitation is made in this embodiment.

[0034] Please refer to Figure 1 , Figure 3 As shown, in this embodiment, it should also be noted that a mounting groove 211 is provided on the bearing frame 21 , and the shaft assembly 22 is integrally and detachably mounted in the mounting groove 211 .

[0035] In one achievable manner, the assembly groove 211 is provided on the upper surface of the bearing frame 21 and is configured as an arc-shaped groove, the upper end of the arc-shaped groove is open, and both ends of the arc-shaped groove in the length direction are open. The assembly groove 211 is configured as an arc-shaped groove, which is convenient for assembling the shaft assembly 22 from top to bottom, and can be directly picked up and placed during installation or removal, which is convenient for operators to install the shaft assembly 22. Of course, the shape of the assembly groove 211 is not limited in this embodiment, and other shapes may be used as long as the assembly of the shaft assembly 22 can be guaranteed.

[0036] Please refer to Figure 2 , Figure 4 as well as Figure 5 As shown, in this embodiment, it is also necessary to explain that the shaft assembly 22 also includes a bearing housing 221, and the bearing housing 221 and the assembly groove 211 (such as Figure 3The bearing housing 221 is assembled in the assembly groove 211. The bearing seat 222 is detachably mounted in the bearing housing 221. The bearing seat 222 is configured as a front bearing seat 2221 and a rear bearing seat 2222. The front bearing seat 2221 and the rear bearing seat 2222 are respectively and correspondingly mounted at the front and rear ends of the bearing housing 221. The bearing 223 is configured as a front bearing 2231 and a rear bearing 2232. The front bearing 2231 is correspondingly mounted on the front bearing seat 2221, and the rear bearing 2232 is correspondingly mounted on the rear bearing seat 2222. The main shaft 224 is rotatably connected through the front bearing 2231 and the front bearing seat 2221, and the rear bearing 2232 and the rear bearing seat 2222. In this embodiment, the front end of the bearing housing 221 during installation is the end close to the refining part 1, and the rear end of the bearing housing 221 is the end away from the refining part 1.

[0037] In one achievable manner, referring to Figure 3 and Figure 4 As shown, a plurality of protruding mounting plates 2211 are distributed on the bearing housing 221, and mounting holes 22111 are provided on the mounting plates 2211; threaded holes 212 are provided on the upper surface of the bearing frame 21 at positions for the mounting plates 2211 to fit. During installation, the bearing housing 221 is placed in the assembly groove 211, and at the same time, the edge of the mounting plates 2211 fits against the upper surface of the bearing frame 21, and the mounting holes 22111 and the threaded holes 212 are aligned, and then fastened by screws.

[0038] Please refer to Figure 2 As shown, further, one end of the main shaft 224 is connected to the power output end of the power unit (not shown in the figure), and the other end of the main shaft 224 extends into the refining unit 1 and is connected to the movable grinding plate 12. The main shaft 224 is rotated by the power output end of the power unit, and the main shaft 224 rotates the movable grinding plate 12 in the refining unit 1 while rotating.

[0039] In one example, the power unit includes a motor, the output shaft of the motor is the power output end, and one end of the main shaft 224 is connected to the power output end of the motor, and the other end of the main shaft 224 extends into the refining unit 1 and is connected to the movable refining plate 12. The use of a motor facilitates the control of the rotation operation of the main shaft 224.

[0040] Implementation principle of this embodiment: In this embodiment, by designing the bearing frame 21 and the shaft assembly 22 as two separate components, the shaft assembly 22 can be installed on the bearing frame 21 as a whole, and the bearing frame 21 and the refining part 1 are also detachably connected. In this way, when replacing components such as bearings or main shafts, the shaft assembly 22 can be removed as a whole without moving the refining part 1 and the bearing frame 21, and the refining part 1 and the bearing frame 21 will not be worn. If spare parts of the shaft assembly 22 are available, they can be replaced directly, and the replaced broken shaft assembly 22 can be repaired slowly, which greatly reduces the downtime for maintenance and replacement. The separate shaft assembly 22 is designed to have a longer service life and lower overall maintenance costs.

[0041] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0042] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A double disc grinding device, characterized in that: The double disc grinding equipment comprises: A refining section (1), comprising a movable refining plate (12); a power unit having a power output end; and A bearing part (2) is arranged between the refining part (1) and the power part, and the bearing part (2) comprises a bearing frame (21) and a shaft assembly (22), wherein: The shaft assembly (22) comprises a main shaft (224), a bearing (223) and a bearing seat (222); the shaft assembly (22) is integrally detachably mounted on the bearing frame (21); the power input end of the shaft assembly (22) is connected to the power output end; the power output end of the shaft assembly (22) extends into the refining section (1) and is connected to the movable refining plate (12).

2. The double disc grinding equipment according to claim 1, characterized in that: The bearing frame (21) is detachably mounted on the refining section (1).

3. The double disc grinding device according to claim 2, characterized in that: The bearing frame (21) is connected to the refining part (1) by using bolts (3).

4. The double disc grinding device according to any one of claims 1 to 3, characterized in that: The bearing frame (21) is provided with a mounting groove (211), and the shaft assembly (22) is integrally and detachably mounted in the mounting groove (211).

5. The double disc grinding device according to claim 4, characterized in that: The assembly groove (211) is configured as an arc-shaped groove with an open top, and the two opposite ends of the arc-shaped groove are configured as openings.

6. The double disc grinding device according to claim 5, characterized in that: The shaft assembly (22) further comprises a bearing housing (221), wherein the bearing housing (221) is assembled in the assembly groove (211), and the bearing seat (222) is installed in the bearing housing (221), and the main shaft (224) is rotatably connected to the bearing seat (222) via the bearing (223).

7. The double disc grinding device according to claim 6, characterized in that: The bearing seat (222) is detachably mounted in the bearing housing (221).

8. The double disc grinding device according to claim 6, characterized in that: The bearing (223) includes a front bearing (2231) and a rear bearing (2232); the bearing seat (222) includes a front bearing seat (2221) and a rear bearing seat (2222); the front bearing (2231) is correspondingly mounted on the front bearing seat (2221); the rear bearing (2232) is correspondingly mounted on the rear bearing seat (2222); the main shaft (224) is rotatably connected via the front bearing (2231) and the front bearing seat (2221), and the rear bearing (2232) and the rear bearing seat (2222).

9. The double disc grinding device according to claim 1, characterized in that: The power unit comprises a motor, the output shaft of the motor is the power output end, one end of the main shaft (224) is connected to the power output end of the motor, and the other end of the main shaft (224) extends into the refining unit (1) to be connected to the movable refining plate (12).

10. The double disc grinding equipment according to claim 1, characterized in that: The refining section (1) comprises a refining chamber (11), wherein a movable refining plate (12) and a fixed refining plate (13) are arranged in the refining chamber (11), and a refining area (14) is formed between the movable refining plate (12) and the fixed refining plate (13).

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