Automatic locking device for rotor front seal ring

Abstract

This utility model discloses an automatic locking device for a rotor front sealing ring, including a rotor sleeve and a rotor body installed inside the rotor sleeve. A sealing assembly is provided inside the rotor sleeve, and a sealing pressure plate is provided on the left side of the sealing assembly. Locking screws are provided at the four corners of the outer wall of the left end of the sealing pressure plate. Springs are provided between the inner wall of the left end of the locking screws and the sealing pressure plate. After the locking screws are tightened, the fixing screws can pass through the extension block and screw into the corresponding threaded holes on the sealing pressure plate to fix the position of the locking screws for a second time. This greatly reduces the possibility of rotation or loosening due to external forces, ensures that the sealing pressure plate continuously and stably presses the sealing ring, maintains a good sealing effect, prevents material leakage, and ensures that the locking screws will not cause a decrease in the clamping force of the sealing pressure plate due to loosening.

Description

Technical Field

[0001] This utility model belongs to the technical field of automatic locking of rotor front seal of internal mixer, specifically relating to an automatic locking device for rotor front sealing ring. Background Technology

[0002] Currently, the method for adjusting the front seal of the internal mixer rotor is to manually tighten the screws. This method is usually only used when material leakage is observed, so the internal gap is already too large each time it is adjusted, causing the sealing ring to become less durable and replacing the sealing ring is quite troublesome. The automatic locking device for the rotor front sealing ring is a key component used in rotating machinery equipment. It aims to achieve efficient and reliable locking of the rotor front sealing ring, ensuring stable sealing performance of the equipment during operation.

[0003] However, the vibration during equipment operation can cause the locking screws to gradually loosen, resulting in inconsistent clamping force and thus affecting the sealing effect. Utility Model Content

[0004] The purpose of this invention is to provide an automatic locking device for the front sealing ring of a rotor, so as to solve the problem mentioned in the background art that vibration during operation will cause the locking screw to gradually loosen and affect the sealing effect.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an automatic locking device for a rotor front sealing ring, comprising a rotor sleeve and a rotor body installed inside the rotor sleeve;

[0006] The rotor sleeve is equipped with a sealing assembly;

[0007] A sealing pressure plate is provided on the left side of the sealing assembly;

[0008] Locking screws are provided at the four corners of the outer wall of the left end of the sealing plate, and springs are provided between the inner wall of the left end of the locking screws and the sealing plate.

[0009] One end of each of the locking screws is fixedly connected to an extension block, and a fixing screw is provided on the left side of each of the extension blocks. The left end of the sealing pressure plate has multiple threaded holes at equal intervals for the fixing screws to engage.

[0010] Preferably, the left outer wall of each of the multiple extension blocks is provided with a through hole that runs from left to right, so that the fixing screw can pass through.

[0011] Preferably, the plurality of threaded holes are arranged in a ring around the locking screw.

[0012] Preferably, the multiple extension blocks and locking screws are fixedly connected by welding.

[0013] Preferably, the four corners of the outer wall of the left end of the rotor sleeve are provided with fixing sleeves that are inserted into the sealing pressure plate for the locking screws to be screwed in and fixed.

[0014] Preferably, the sealing assembly consists of three rubber annular sleeves.

[0015] Preferably, the left outer wall of each of the plurality of fixing sleeves is provided with a corresponding threaded hole for the locking screw to be screwed in.

[0016] Preferably, the right end of the sealing plate is protruding to be inserted into the rotor sleeve to abut against the sealing assembly.

[0017] Compared with the prior art, the present invention provides an automatic locking device for the rotor front sealing ring, which has the following advantages:

[0018] By installing the extension block, fixing screws, and threaded holes, after the locking screws are tightened, the fixing screws can pass through the extension block and screw into the corresponding threaded holes on the sealing plate, thus fixing the position of the locking screws a second time. This greatly reduces the possibility of rotation or loosening due to external forces, ensuring that the sealing plate continuously and stably presses the sealing ring, maintaining a good sealing effect and preventing material leakage. Because the fixing screws fix the locking screws a second time, it ensures that the locking screws will not loosen, causing the pressure of the sealing plate to decrease. The sealing ring is always under stable compression, which can tightly fit the rotor sleeve, effectively eliminating gaps between the rotor and the sealing ring, and thus continuously and effectively preventing material leakage. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of an automatic locking device for the rotor front sealing ring according to the present invention.

[0020] Figure 2 This is a partial structural diagram of the locking screw area of ​​this utility model.

[0021] Figure 3 This is a partial structural diagram of the extension block region of this utility model.

[0022] Figure 4 This is a partial side view of the locking screw area of ​​this utility model.

[0023] In the diagram: 1. Rotor sleeve; 2. Sealing plate; 3. Rotor body; 4. Locking screw; 5. Spring; 6. Sealing assembly; 7. Fixing sleeve; 8. Extension block; 9. Fixing screw; 10. Through hole; 11. Threaded hole. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] This utility model provides, for example Figure 1-4 The rotor front sealing ring automatic locking device shown includes a rotor sleeve 1 and a rotor body 3 installed inside the rotor sleeve 1;

[0026] The rotor sleeve 1 is equipped with a sealing component 6 inside;

[0027] A sealing pressure plate 2 is provided on the left side of the sealing assembly 6;

[0028] Locking screws 4 are provided at the four corners of the outer wall of the left end of the sealing pressure plate 2. Springs 5 ​​are provided between the inner wall of the left end of the multiple locking screws 4 and the sealing pressure plate 2. The sealing component 6 is carefully placed inside the rotor sleeve 1 to ensure that the sealing component 6 is accurately positioned and fits well with the rotor sleeve 1 and the rotor body 3. The sealing surface of the sealing component 6 is tightly fitted with the inner wall of the rotor body 3 and the rotor sleeve 1. The sealing pressure plate 2 is placed on the left side of the sealing component 6 so that the locking screws 4 on the sealing pressure plate 2 are aligned with the corresponding positions on the rotor sleeve 1. The locking screws 4 are tightened with tools. During the tightening process, the springs 5 ​​are gradually compressed, and the pressure of the sealing pressure plate 2 on the sealing component 6 gradually increases. After the equipment is started, the rotor body 3 begins to rotate inside the rotor sleeve 1. Under the continuous pressure of the sealing pressure plate 2, the sealing component 6 maintains a tight fit with the inner wall of the rotor body 3 and the rotor sleeve 1, realizing the sealing function and preventing media leakage.

[0029] One end of each of the multiple locking screws 4 is fixedly connected to an extension block 8. Each of the extension blocks 8 has a fixing screw 9 on its left side. The outer wall of the left end of the sealing plate 2 has multiple threaded holes 11 at equal intervals for the fixing screws 9 to engage. The extension blocks 8 are pre-fixed to one end of the locking screws 4 to ensure a firm connection. Then, the fixing screws 9 are aligned with the threaded holes 11 on the sealing plate 2. A suitable tool is used to screw the fixing screws 9 into the threaded holes 11 until the fixing screws 9 are tightly engaged with the threaded holes 11, thus performing a secondary fixation on the locking screws 4.

[0030] like Figure 3 and Figure 4 As shown, the left outer wall of each of the multiple extension blocks 8 has a through hole 10 that runs from left to right, so that the fixing screw 9 can pass through. The multiple threaded holes 11 are arranged in a ring with the locking screw 4 as the center. The multiple extension blocks 8 and the locking screw 4 are fixedly connected by welding.

[0031] The through hole 10 on the left outer wall of the extension block 8 provides a passage for the fixing screw 9 to pass through. The fixing screw 9 passes through the through hole 10 and is screwed into the threaded holes 11 arranged in a ring on the left outer wall of the sealing pressure plate 2. Since the multiple threaded holes 11 are arranged in a ring with the locking screw 4 as the center, after the locking screw 4 is screwed in, the fixing screw 9 can select the nearest threaded hole 11 for screwing and fixing after passing through the through hole 10.

[0032] like Figure 2 As shown, at the four corners of the left outer wall of the rotor sleeve 1, there are fixing sleeves 7 that are inserted into the sealing pressure plate 2, so that the locking screws 4 can be screwed in and fixed.

[0033] During installation, the locking screw 4 passes through the sealing pressure plate 2 and is screwed into the threaded hole of the fixing sleeve 7, making the connection between the sealing pressure plate 2 and the rotor sleeve 1 more secure. Moreover, by tightening the locking screw 4, the pressure of the sealing pressure plate 2 on the sealing component 6 can be precisely controlled.

[0034] like Figure 1 As shown, the sealing assembly 6 consists of three rubber ring sleeves. The outer wall of the left end of the multiple fixing sleeves 7 is provided with corresponding threaded holes for the locking screws 4 to be screwed in. The right end of the sealing pressure plate 2 is protruding to be inserted into the rotor sleeve 1 to abut against the sealing assembly 6.

[0035] The sealing assembly 6 consists of three rubber ring sleeves, which can provide a certain degree of elasticity and adaptability while ensuring the sealing effect. Align the right end protruding part of the sealing pressure plate 2 with the left end opening of the rotor sleeve 1 and slowly insert it so that the sealing pressure plate 2 abuts against the sealing assembly 6, ensuring that the installation of the sealing pressure plate 2 is smooth.

[0036] The implementation principle of this embodiment is as follows: The sealing component 6 is carefully placed inside the rotor sleeve 1 to ensure that the sealing component 6 is accurately positioned and fits well with the rotor sleeve 1 and the rotor body 3. The sealing surface of the sealing component 6 is tightly fitted with the inner wall of the rotor body 3 and the rotor sleeve 1. The sealing pressure plate 2 is placed on the left side of the sealing component 6, so that the locking screw 4 on the sealing pressure plate 2 is aligned with the corresponding position on the rotor sleeve 1. The locking screw 4 is tightened with a tool. During the tightening process, the spring 5 is gradually compressed, and the pressure of the sealing pressure plate 2 on the sealing component 6 gradually increases. After the equipment is started, the rotor body 3 begins to rotate inside the rotor sleeve 1. Under the continuous pressure of the sealing pressure plate 2, the sealing component 6 maintains a tight fit with the inner wall of the rotor body 3 and the rotor sleeve 1, realizing the sealing function and preventing media leakage. The extension block 8 is pre-fixed to one end of the locking screw 4 to ensure a firm connection. Then, the fixing screw 9 is aligned with the threaded hole 11 on the sealing pressure plate 2. The fixing screw 9 is screwed into the threaded hole 11 with a suitable tool until the fixing screw 9 is tightly screwed into the threaded hole 11, thus performing a secondary fixation of the locking screw 4.

[0037] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An automatic locking device for a rotor front sealing ring, comprising a rotor sleeve (1) and a rotor body (3) installed inside the rotor sleeve (1). The rotor sleeve (1) is provided with a sealing component (6); A sealing pressure plate (2) is provided on the left side of the sealing assembly (6); Locking screws (4) are provided at the four corners of the outer wall of the left end of the sealing plate (2), and springs (5) are provided between the inner wall of the left end of the multiple locking screws (4) and the sealing plate (2). Its features are: One end of each of the locking screws (4) is fixedly connected to an extension block (8), and a fixing screw (9) is provided on the left side of each of the extension blocks (8). Multiple threaded holes (11) for the fixing screws (9) to engage are provided at equal intervals on the inner side of the outer wall of the left end of the sealing pressure plate (2).

2. The rotor front sealing ring automatic locking device according to claim 1, characterized in that: Each of the extension blocks (8) has a through hole (10) on the left outer wall for the fixing screw (9) to pass through.

3. The rotor front sealing ring automatic locking device according to claim 1, characterized in that: The multiple threaded holes (11) are arranged in a ring around the locking screw (4).

4. The rotor front sealing ring automatic locking device according to claim 1, characterized in that: The multiple extension blocks (8) and locking screws (4) are fixedly connected by welding.

5. The rotor front sealing ring automatic locking device according to claim 1, characterized in that: The rotor sleeve (1) is provided with a fixing sleeve (7) at each of the four corners of the outer wall of the left end, which is inserted into the sealing pressure plate (2) for the locking screw (4) to be screwed in and fixed.

6. The rotor front sealing ring automatic locking device according to claim 1, characterized in that: The sealing assembly (6) consists of three rubber annular sleeves.

7. The rotor front sealing ring automatic locking device according to claim 5, characterized in that: The left outer wall of each of the multiple fixed sleeves (7) is provided with a corresponding threaded hole for the locking screw (4) to be screwed in.

8. The rotor front sealing ring automatic locking device according to claim 1, characterized in that: The right end of the sealing plate (2) is protruding so as to be inserted into the rotor sleeve (1) and abut against the sealing assembly (6).

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